chore: Remove editingLinearElement (#9771)

Co-authored-by: dwelle <5153846+dwelle@users.noreply.github.com>

.github/copilot-instructions.md

@@ -0,0 +1,45 @@
+# Project coding standards
+
+## Generic Communication Guidelines
+
+- Be succint and be aware that expansive generative AI answers are costly and slow
+- Avoid providing explanations, trying to teach unless asked for, your chat partner is an expert
+- Stop apologising if corrected, just provide the correct information or code
+- Prefer code unless asked for explanation
+- Stop summarizing what you've changed after modifications unless asked for
+
+## TypeScript Guidelines
+
+- Use TypeScript for all new code
+- Where possible, prefer implementations without allocation
+- When there is an option, opt for more performant solutions and trade RAM usage for less CPU cycles
+- Prefer immutable data (const, readonly)
+- Use optional chaining (?.) and nullish coalescing (??) operators
+
+## React Guidelines
+
+- Use functional components with hooks
+- Follow the React hooks rules (no conditional hooks)
+- Keep components small and focused
+- Use CSS modules for component styling
+
+## Naming Conventions
+
+- Use PascalCase for component names, interfaces, and type aliases
+- Use camelCase for variables, functions, and methods
+- Use ALL_CAPS for constants
+
+## Error Handling
+
+- Use try/catch blocks for async operations
+- Implement proper error boundaries in React components
+- Always log errors with contextual information
+
+## Testing
+
+- Always attempt to fix #problems
+- Always offer to run `yarn test:app` in the project root after modifications are complete and attempt fixing the issues reported
+
+## Types
+
+- Always include `packages/math/src/types.ts` in the context when your write math related code and always use the Point type instead of { x, y}

.github/workflows/autorelease-excalidraw.yml

@@ -24,4 +24,4 @@ jobs:
       - name: Auto release
         run: |
           yarn add @actions/core -W
-          yarn autorelease
+          yarn release --tag=next --non-interactive

.github/workflows/autorelease-preview.yml

@@ -1,55 +0,0 @@
-name: Auto release excalidraw preview
-on:
-  issue_comment:
-    types: [created, edited]
-
-jobs:
-  Auto-release-excalidraw-preview:
-    name: Auto release preview
-    if: github.event.comment.body == '@excalibot trigger release' && github.event.issue.pull_request
-    runs-on: ubuntu-latest
-    steps:
-      - name: React to release comment
-        uses: peter-evans/create-or-update-comment@v1
-        with:
-          token: ${{ secrets.PUSH_TRANSLATIONS_COVERAGE_PAT }}
-          comment-id: ${{ github.event.comment.id }}
-          reactions: "+1"
-      - name: Get PR SHA
-        id: sha
-        uses: actions/github-script@v4
-        with:
-          result-encoding: string
-          script: |
-            const { owner, repo, number } = context.issue;
-            const pr = await github.pulls.get({
-              owner,
-              repo,
-              pull_number: number,
-            });
-            return pr.data.head.sha
-      - uses: actions/checkout@v2
-        with:
-          ref: ${{ steps.sha.outputs.result }}
-          fetch-depth: 2
-      - name: Setup Node.js 18.x
-        uses: actions/setup-node@v2
-        with:
-          node-version: 18.x
-      - name: Set up publish access
-        run: |
-          npm config set //registry.npmjs.org/:_authToken ${NPM_TOKEN}
-        env:
-          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
-      - name: Auto release preview
-        id: "autorelease"
-        run: |
-          yarn add @actions/core -W
-          yarn autorelease preview ${{ github.event.issue.number }}
-      - name: Post comment post release
-        if: always()
-        uses: peter-evans/create-or-update-comment@v1
-        with:
-          token: ${{ secrets.PUSH_TRANSLATIONS_COVERAGE_PAT }}
-          issue-number: ${{ github.event.issue.number }}
-          body: "@${{ github.event.comment.user.login }} ${{ steps.autorelease.outputs.result }}"

.github/workflows/publish-docker.yml

@@ -17,9 +17,14 @@ jobs:
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
       - name: Build and push
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v5
         with:
           context: .
           push: true
           tags: excalidraw/excalidraw:latest
+          platforms: linux/amd64, linux/arm64, linux/arm/v7

.gitignore

@@ -25,4 +25,5 @@ packages/excalidraw/types
 coverage
 dev-dist
 html
-meta*.json
+meta*.json
+.claude

CLAUDE.md

@@ -0,0 +1,34 @@
+# CLAUDE.md
+
+## Project Structure
+
+Excalidraw is a **monorepo** with a clear separation between the core library and the application:
+
+- **`packages/excalidraw/`** - Main React component library published to npm as `@excalidraw/excalidraw`
+- **`excalidraw-app/`** - Full-featured web application (excalidraw.com) that uses the library
+- **`packages/`** - Core packages: `@excalidraw/common`, `@excalidraw/element`, `@excalidraw/math`, `@excalidraw/utils`
+- **`examples/`** - Integration examples (NextJS, browser script)
+
+## Development Workflow
+
+1. **Package Development**: Work in `packages/*` for editor features
+2. **App Development**: Work in `excalidraw-app/` for app-specific features
+3. **Testing**: Always run `yarn test:update` before committing
+4. **Type Safety**: Use `yarn test:typecheck` to verify TypeScript
+
+## Development Commands
+
+```bash
+yarn test:typecheck  # TypeScript type checking
+yarn test:update     # Run all tests (with snapshot updates)
+yarn fix             # Auto-fix formatting and linting issues
+```
+
+## Architecture Notes
+
+### Package System
+
+- Uses Yarn workspaces for monorepo management
+- Internal packages use path aliases (see `vitest.config.mts`)
+- Build system uses esbuild for packages, Vite for the app
+- TypeScript throughout with strict configuration

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:18 AS build
+FROM --platform=${BUILDPLATFORM} node:18 AS build
 
 WORKDIR /opt/node_app
 
@@ -6,13 +6,14 @@ COPY . .
 
 # do not ignore optional dependencies:
 # Error: Cannot find module @rollup/rollup-linux-x64-gnu
-RUN yarn --network-timeout 600000
+RUN --mount=type=cache,target=/root/.cache/yarn \
+    npm_config_target_arch=${TARGETARCH} yarn --network-timeout 600000
 
 ARG NODE_ENV=production
 
-RUN yarn build:app:docker
+RUN npm_config_target_arch=${TARGETARCH} yarn build:app:docker
 
-FROM nginx:1.27-alpine
+FROM --platform=${TARGETPLATFORM} nginx:1.27-alpine
 
 COPY --from=build /opt/node_app/excalidraw-app/build /usr/share/nginx/html
 

dev-docs/docs/@excalidraw/excalidraw/api/props/excalidraw-api.mdx

@@ -363,13 +363,7 @@ This API has the below signature. It sets the `tool` passed in param as the acti
 ```ts
 (
   tool: (
-    | (
-        | { type: Exclude<ToolType, "image"> }
-        | {
-            type: Extract<ToolType, "image">;
-            insertOnCanvasDirectly?: boolean;
-          }
-      )
+    | { type: ToolType }
     | { type: "custom"; customType: string }
   ) & { locked?: boolean },
 ) => {};
@@ -377,7 +371,7 @@ This API has the below signature. It sets the `tool` passed in param as the acti
 
 | Name | Type | Default | Description |
 | --- | --- | --- | --- |
-| `type` | [ToolType](https://github.com/excalidraw/excalidraw/blob/master/packages/excalidraw/types.ts#L91) | `selection` | The tool type which should be set as active tool. When setting `image` as active tool, the insertion onto canvas when using image tool is disabled by default, so you can enable it by setting `insertOnCanvasDirectly` to `true` |
+| `type` | [ToolType](https://github.com/excalidraw/excalidraw/blob/master/packages/excalidraw/types.ts#L91) | `selection` | The tool type which should be set as active tool |
 | `locked` | `boolean` | `false` | Indicates whether the the active tool should be locked. It behaves the same way when using the `lock` tool in the editor interface |
 
 ## setCursor

dev-docs/docs/@excalidraw/excalidraw/development.mdx

@@ -28,32 +28,12 @@ To start the example app using the `@excalidraw/excalidraw` package, follow the
 
 ## Releasing
 
-### Create a test release
-
-You can create a test release by posting the below comment in your pull request:
-
-```bash
-@excalibot trigger release
-```
-
-Once the version is released `@excalibot` will post a comment with the release version.
-
 ### Creating a production release
 
 To release the next stable version follow the below steps:
 
 ```bash
-yarn prerelease:excalidraw
+yarn release --tag=latest --version=0.19.0
 ```
 
-You need to pass the `version` for which you want to create the release. This will make the changes needed before making the release like updating `package.json`, `changelog` and more.
-
-The next step is to run the `release` script:
-
-```bash
-yarn release:excalidraw
-```
-
-This will publish the package.
-
-Right now there are two steps to create a production release but once this works fine these scripts will be combined and more automation will be done.
+You will need to pass the `latest` tag with `version` for which you want to create the release. This will make the changes needed before publishing the packages into NPM, like updating dependencies of all `@excalidraw/*` packages, generating new entries in `CHANGELOG.md` and more.

dev-docs/docs/@excalidraw/excalidraw/integration.mdx

@@ -38,6 +38,8 @@ If you want to only import `Excalidraw` component you can do :point_down:
 
 ```jsx showLineNumbers
 import dynamic from "next/dynamic";
+import "@excalidraw/excalidraw/index.css";
+
 const Excalidraw = dynamic(
   async () => (await import("@excalidraw/excalidraw")).Excalidraw,
   {

dev-docs/src/theme/ReactLiveScope/index.js

@@ -33,6 +33,7 @@ const ExcalidrawScope = {
   initialData,
   useI18n: ExcalidrawComp.useI18n,
   convertToExcalidrawElements: ExcalidrawComp.convertToExcalidrawElements,
+  CaptureUpdateAction: ExcalidrawComp.CaptureUpdateAction,
 };
 
 export default ExcalidrawScope;

examples/with-nextjs/package.json

@@ -3,7 +3,8 @@
   "version": "0.1.0",
   "private": true,
   "scripts": {
-    "build:workspace": "yarn workspace @excalidraw/excalidraw run build:esm && yarn copy:assets",
+    "build:packages": "yarn --cwd ../../ build:packages",
+    "build:workspace": "yarn build:packages && yarn copy:assets",
     "copy:assets": "cp -r ../../packages/excalidraw/dist/prod/fonts ./public",
     "dev": "yarn build:workspace && next dev -p 3005",
     "build": "yarn build:workspace && next build",

examples/with-script-in-browser/package.json

@@ -17,6 +17,6 @@
     "build": "vite build",
     "preview": "vite preview --port 5002",
     "build:preview": "yarn build && yarn preview",
-    "build:package": "yarn workspace @excalidraw/excalidraw run build:esm"
+    "build:packages": "yarn --cwd ../../ build:packages"
   }
 }

examples/with-script-in-browser/vercel.json

@@ -1,5 +1,5 @@
 {
   "outputDirectory": "dist",
   "installCommand": "yarn install",
-  "buildCommand": "yarn build:package && yarn build"
+  "buildCommand": "yarn build:packages && yarn build"
 }

excalidraw-app/components/DebugCanvas.tsx

@@ -9,7 +9,7 @@ import {
 } from "@excalidraw/excalidraw/renderer/helpers";
 import { type AppState } from "@excalidraw/excalidraw/types";
 import { throttleRAF } from "@excalidraw/common";
-import { useCallback, useImperativeHandle, useRef } from "react";
+import { useCallback } from "react";
 
 import {
   isLineSegment,
@@ -18,10 +18,12 @@ import {
 } from "@excalidraw/math";
 import { isCurve } from "@excalidraw/math/curve";
 
-import type { DebugElement } from "@excalidraw/excalidraw/visualdebug";
+import React from "react";
 
 import type { Curve } from "@excalidraw/math";
 
+import type { DebugElement } from "@excalidraw/utils/visualdebug";
+
 import { STORAGE_KEYS } from "../app_constants";
 
 const renderLine = (
@@ -113,10 +115,6 @@ const _debugRenderer = (
     scale,
   );
 
-  if (appState.height !== canvas.height || appState.width !== canvas.width) {
-    refresh();
-  }
-
   const context = bootstrapCanvas({
     canvas,
     scale,
@@ -314,35 +312,29 @@ export const DebugFooter = ({ onChange }: { onChange: () => void }) => {
 interface DebugCanvasProps {
   appState: AppState;
   scale: number;
-  ref?: React.Ref<HTMLCanvasElement>;
 }
 
-const DebugCanvas = ({ appState, scale, ref }: DebugCanvasProps) => {
-  const { width, height } = appState;
+const DebugCanvas = React.forwardRef<HTMLCanvasElement, DebugCanvasProps>(
+  ({ appState, scale }, ref) => {
+    const { width, height } = appState;
 
-  const canvasRef = useRef<HTMLCanvasElement>(null);
-  useImperativeHandle<HTMLCanvasElement | null, HTMLCanvasElement | null>(
-    ref,
-    () => canvasRef.current,
-    [canvasRef],
-  );
-
-  return (
-    <canvas
-      style={{
-        width,
-        height,
-        position: "absolute",
-        zIndex: 2,
-        pointerEvents: "none",
-      }}
-      width={width * scale}
-      height={height * scale}
-      ref={canvasRef}
-    >
-      Debug Canvas
-    </canvas>
-  );
-};
+    return (
+      <canvas
+        style={{
+          width,
+          height,
+          position: "absolute",
+          zIndex: 2,
+          pointerEvents: "none",
+        }}
+        width={width * scale}
+        height={height * scale}
+        ref={ref}
+      >
+        Debug Canvas
+      </canvas>
+    );
+  },
+);
 
 export default DebugCanvas;

excalidraw-app/tests/collab.test.tsx

@@ -205,6 +205,7 @@ describe("collaboration", () => {
     // with explicit undo (as addition) we expect our item to be restored from the snapshot!
     await waitFor(() => {
       expect(API.getUndoStack().length).toBe(1);
+      expect(API.getRedoStack().length).toBe(1);
       expect(API.getSnapshot()).toEqual([
         expect.objectContaining(rect1Props),
         expect.objectContaining({ ...rect2Props, isDeleted: false }),
@@ -247,79 +248,5 @@ describe("collaboration", () => {
         expect.objectContaining({ ...rect2Props, isDeleted: true }),
       ]);
     });
-
-    act(() => h.app.actionManager.executeAction(undoAction));
-
-    // simulate local update
-    API.updateScene({
-      elements: syncInvalidIndices([
-        h.elements[0],
-        newElementWith(h.elements[1], { x: 100 }),
-      ]),
-      captureUpdate: CaptureUpdateAction.IMMEDIATELY,
-    });
-
-    await waitFor(() => {
-      expect(API.getUndoStack().length).toBe(2);
-      expect(API.getRedoStack().length).toBe(0);
-      expect(API.getSnapshot()).toEqual([
-        expect.objectContaining(rect1Props),
-        expect.objectContaining({ ...rect2Props, isDeleted: false, x: 100 }),
-      ]);
-      expect(h.elements).toEqual([
-        expect.objectContaining(rect1Props),
-        expect.objectContaining({ ...rect2Props, isDeleted: false, x: 100 }),
-      ]);
-    });
-
-    act(() => h.app.actionManager.executeAction(undoAction));
-
-    // we expect to iterate the stack to the first visible change
-    await waitFor(() => {
-      expect(API.getUndoStack().length).toBe(1);
-      expect(API.getRedoStack().length).toBe(1);
-      expect(API.getSnapshot()).toEqual([
-        expect.objectContaining(rect1Props),
-        expect.objectContaining({ ...rect2Props, isDeleted: false, x: 0 }),
-      ]);
-      expect(h.elements).toEqual([
-        expect.objectContaining(rect1Props),
-        expect.objectContaining({ ...rect2Props, isDeleted: false, x: 0 }),
-      ]);
-    });
-
-    // simulate force deleting the element remotely
-    API.updateScene({
-      elements: syncInvalidIndices([rect1]),
-      captureUpdate: CaptureUpdateAction.NEVER,
-    });
-
-    // snapshot was correctly updated and marked the element as deleted
-    await waitFor(() => {
-      expect(API.getUndoStack().length).toBe(1);
-      expect(API.getRedoStack().length).toBe(1);
-      expect(API.getSnapshot()).toEqual([
-        expect.objectContaining(rect1Props),
-        expect.objectContaining({ ...rect2Props, isDeleted: true, x: 0 }),
-      ]);
-      expect(h.elements).toEqual([expect.objectContaining(rect1Props)]);
-    });
-
-    act(() => h.app.actionManager.executeAction(redoAction));
-
-    // with explicit redo (as update) we again restored the element from the snapshot!
-    await waitFor(() => {
-      expect(API.getUndoStack().length).toBe(2);
-      expect(API.getRedoStack().length).toBe(0);
-      expect(API.getSnapshot()).toEqual([
-        expect.objectContaining({ id: "A", isDeleted: false }),
-        expect.objectContaining({ id: "B", isDeleted: true, x: 100 }),
-      ]);
-      expect(h.history.isRedoStackEmpty).toBeTruthy();
-      expect(h.elements).toEqual([
-        expect.objectContaining({ id: "A", isDeleted: false }),
-        expect.objectContaining({ id: "B", isDeleted: true, x: 100 }),
-      ]);
-    });
   });
 });

package.json

@@ -52,13 +52,17 @@
     "build-node": "node ./scripts/build-node.js",
     "build:app:docker": "yarn --cwd ./excalidraw-app build:app:docker",
     "build:app": "yarn --cwd ./excalidraw-app build:app",
-    "build:package": "yarn --cwd ./packages/excalidraw build:esm",
+    "build:common": "yarn --cwd ./packages/common build:esm",
+    "build:element": "yarn --cwd ./packages/element build:esm",
+    "build:excalidraw": "yarn --cwd ./packages/excalidraw build:esm",
+    "build:math": "yarn --cwd ./packages/math build:esm",
+    "build:packages": "yarn build:common && yarn build:math && yarn build:element && yarn build:excalidraw",
     "build:version": "yarn --cwd ./excalidraw-app build:version",
     "build": "yarn --cwd ./excalidraw-app build",
     "build:preview": "yarn --cwd ./excalidraw-app build:preview",
     "start": "yarn --cwd ./excalidraw-app start",
     "start:production": "yarn --cwd ./excalidraw-app start:production",
-    "start:example": "yarn build:package && yarn --cwd ./examples/with-script-in-browser start",
+    "start:example": "yarn build:packages && yarn --cwd ./examples/with-script-in-browser start",
     "test:all": "yarn test:typecheck && yarn test:code && yarn test:other && yarn test:app --watch=false",
     "test:app": "vitest",
     "test:code": "eslint --max-warnings=0 --ext .js,.ts,.tsx .",
@@ -76,9 +80,10 @@
     "locales-coverage:description": "node scripts/locales-coverage-description.js",
     "prepare": "husky install",
     "prettier": "prettier \"**/*.{css,scss,json,md,html,yml}\" --ignore-path=.eslintignore",
-    "autorelease": "node scripts/autorelease.js",
-    "prerelease:excalidraw": "node scripts/prerelease.js",
-    "release:excalidraw": "node scripts/release.js",
+    "release": "node scripts/release.js",
+    "release:test": "node scripts/release.js --tag=test",
+    "release:next": "node scripts/release.js --tag=next",
+    "release:latest": "node scripts/release.js --tag=latest",
     "rm:build": "rimraf --glob excalidraw-app/build excalidraw-app/dist excalidraw-app/dev-dist packages/*/dist packages/*/build examples/*/build examples/*/dist",
     "rm:node_modules": "rimraf --glob node_modules excalidraw-app/node_modules packages/*/node_modules",
     "clean-install": "yarn rm:node_modules && yarn install"

packages/common/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@excalidraw/common",
-  "version": "0.1.0",
+  "version": "0.18.0",
   "type": "module",
   "types": "./dist/types/common/src/index.d.ts",
   "main": "./dist/prod/index.js",
@@ -13,7 +13,10 @@
       "default": "./dist/prod/index.js"
     },
     "./*": {
-      "types": "./dist/types/common/src/*.d.ts"
+      "types": "./dist/types/common/src/*.d.ts",
+      "development": "./dist/dev/index.js",
+      "production": "./dist/prod/index.js",
+      "default": "./dist/prod/index.js"
     }
   },
   "files": [

packages/common/src/constants.ts

@@ -36,6 +36,7 @@ export const APP_NAME = "Excalidraw";
 // (happens a lot with fast clicks with the text tool)
 export const TEXT_AUTOWRAP_THRESHOLD = 36; // px
 export const DRAGGING_THRESHOLD = 10; // px
+export const MINIMUM_ARROW_SIZE = 20; // px
 export const LINE_CONFIRM_THRESHOLD = 8; // px
 export const ELEMENT_SHIFT_TRANSLATE_AMOUNT = 5;
 export const ELEMENT_TRANSLATE_AMOUNT = 1;
@@ -147,19 +148,49 @@ export const FONT_FAMILY = {
   Assistant: 10,
 };
 
+// Segoe UI Emoji fails to properly fallback for some glyphs: ∞, ∫, ≠
+// so we need to have generic font fallback before it
+export const SANS_SERIF_GENERIC_FONT = "sans-serif";
+export const MONOSPACE_GENERIC_FONT = "monospace";
+
+export const FONT_FAMILY_GENERIC_FALLBACKS = {
+  [SANS_SERIF_GENERIC_FONT]: 998,
+  [MONOSPACE_GENERIC_FONT]: 999,
+};
+
 export const FONT_FAMILY_FALLBACKS = {
   [CJK_HAND_DRAWN_FALLBACK_FONT]: 100,
+  ...FONT_FAMILY_GENERIC_FALLBACKS,
   [WINDOWS_EMOJI_FALLBACK_FONT]: 1000,
 };
 
+export function getGenericFontFamilyFallback(
+  fontFamily: number,
+): keyof typeof FONT_FAMILY_GENERIC_FALLBACKS {
+  switch (fontFamily) {
+    case FONT_FAMILY.Cascadia:
+    case FONT_FAMILY["Comic Shanns"]:
+      return MONOSPACE_GENERIC_FONT;
+
+    default:
+      return SANS_SERIF_GENERIC_FONT;
+  }
+}
+
 export const getFontFamilyFallbacks = (
   fontFamily: number,
 ): Array<keyof typeof FONT_FAMILY_FALLBACKS> => {
+  const genericFallbackFont = getGenericFontFamilyFallback(fontFamily);
+
   switch (fontFamily) {
     case FONT_FAMILY.Excalifont:
-      return [CJK_HAND_DRAWN_FALLBACK_FONT, WINDOWS_EMOJI_FALLBACK_FONT];
+      return [
+        CJK_HAND_DRAWN_FALLBACK_FONT,
+        genericFallbackFont,
+        WINDOWS_EMOJI_FALLBACK_FONT,
+      ];
     default:
-      return [WINDOWS_EMOJI_FALLBACK_FONT];
+      return [genericFallbackFont, WINDOWS_EMOJI_FALLBACK_FONT];
   }
 };
 
@@ -477,3 +508,10 @@ export enum UserIdleState {
   AWAY = "away",
   IDLE = "idle",
 }
+
+/**
+ * distance at which we merge points instead of adding a new merge-point
+ * when converting a line to a polygon (merge currently means overlaping
+ * the start and end points)
+ */
+export const LINE_POLYGON_POINT_MERGE_DISTANCE = 20;

packages/common/src/utils.ts

@@ -1,10 +1,9 @@
-import { average, pointFrom, type GlobalPoint } from "@excalidraw/math";
+import { average } from "@excalidraw/math";
 
 import type {
   ExcalidrawBindableElement,
   FontFamilyValues,
   FontString,
-  ExcalidrawElement,
 } from "@excalidraw/element/types";
 
 import type {
@@ -101,7 +100,6 @@ export const getFontFamilyString = ({
 }) => {
   for (const [fontFamilyString, id] of Object.entries(FONT_FAMILY)) {
     if (id === fontFamily) {
-      // TODO: we should fallback first to generic family names first
       return `${fontFamilyString}${getFontFamilyFallbacks(id)
         .map((x) => `, ${x}`)
         .join("")}`;
@@ -712,8 +710,8 @@ export const arrayToObject = <T>(
   array: readonly T[],
   groupBy?: (value: T) => string | number,
 ) =>
-  array.reduce((acc, value) => {
-    acc[groupBy ? groupBy(value) : String(value)] = value;
+  array.reduce((acc, value, idx) => {
+    acc[groupBy ? groupBy(value) : idx] = value;
     return acc;
   }, {} as { [key: string]: T });
 
@@ -1238,20 +1236,6 @@ export const escapeDoubleQuotes = (str: string) => {
 export const castArray = <T>(value: T | T[]): T[] =>
   Array.isArray(value) ? value : [value];
 
-export const elementCenterPoint = (
-  element: ExcalidrawElement,
-  xOffset: number = 0,
-  yOffset: number = 0,
-) => {
-  const { x, y, width, height } = element;
-
-  const centerXPoint = x + width / 2 + xOffset;
-
-  const centerYPoint = y + height / 2 + yOffset;
-
-  return pointFrom<GlobalPoint>(centerXPoint, centerYPoint);
-};
-
 /** hack for Array.isArray type guard not working with readonly value[] */
 export const isReadonlyArray = (value?: any): value is readonly any[] => {
   return Array.isArray(value);

packages/element/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@excalidraw/element",
-  "version": "0.1.0",
+  "version": "0.18.0",
   "type": "module",
   "types": "./dist/types/element/src/index.d.ts",
   "main": "./dist/prod/index.js",
@@ -13,7 +13,10 @@
       "default": "./dist/prod/index.js"
     },
     "./*": {
-      "types": "./dist/types/element/src/*.d.ts"
+      "types": "./dist/types/element/src/*.d.ts",
+      "development": "./dist/dev/index.js",
+      "production": "./dist/prod/index.js",
+      "default": "./dist/prod/index.js"
     }
   },
   "files": [
@@ -52,5 +55,9 @@
   "scripts": {
     "gen:types": "rimraf types && tsc",
     "build:esm": "rimraf dist && node ../../scripts/buildBase.js && yarn gen:types"
+  },
+  "dependencies": {
+    "@excalidraw/common": "0.18.0",
+    "@excalidraw/math": "0.18.0"
   }
 }

packages/element/src/ShapeCache.ts

@@ -1,95 +0,0 @@
-import { RoughGenerator } from "roughjs/bin/generator";
-
-import { COLOR_PALETTE } from "@excalidraw/common";
-
-import type {
-  AppState,
-  EmbedsValidationStatus,
-} from "@excalidraw/excalidraw/types";
-import type {
-  ElementShape,
-  ElementShapes,
-} from "@excalidraw/excalidraw/scene/types";
-
-import { _generateElementShape } from "./Shape";
-
-import { elementWithCanvasCache } from "./renderElement";
-
-import type { ExcalidrawElement, ExcalidrawSelectionElement } from "./types";
-
-import type { Drawable } from "roughjs/bin/core";
-
-export class ShapeCache {
-  private static rg = new RoughGenerator();
-  private static cache = new WeakMap<ExcalidrawElement, ElementShape>();
-
-  /**
-   * Retrieves shape from cache if available. Use this only if shape
-   * is optional and you have a fallback in case it's not cached.
-   */
-  public static get = <T extends ExcalidrawElement>(element: T) => {
-    return ShapeCache.cache.get(
-      element,
-    ) as T["type"] extends keyof ElementShapes
-      ? ElementShapes[T["type"]] | undefined
-      : ElementShape | undefined;
-  };
-
-  public static set = <T extends ExcalidrawElement>(
-    element: T,
-    shape: T["type"] extends keyof ElementShapes
-      ? ElementShapes[T["type"]]
-      : Drawable,
-  ) => ShapeCache.cache.set(element, shape);
-
-  public static delete = (element: ExcalidrawElement) =>
-    ShapeCache.cache.delete(element);
-
-  public static destroy = () => {
-    ShapeCache.cache = new WeakMap();
-  };
-
-  /**
-   * Generates & caches shape for element if not already cached, otherwise
-   * returns cached shape.
-   */
-  public static generateElementShape = <
-    T extends Exclude<ExcalidrawElement, ExcalidrawSelectionElement>,
-  >(
-    element: T,
-    renderConfig: {
-      isExporting: boolean;
-      canvasBackgroundColor: AppState["viewBackgroundColor"];
-      embedsValidationStatus: EmbedsValidationStatus;
-    } | null,
-  ) => {
-    // when exporting, always regenerated to guarantee the latest shape
-    const cachedShape = renderConfig?.isExporting
-      ? undefined
-      : ShapeCache.get(element);
-
-    // `null` indicates no rc shape applicable for this element type,
-    // but it's considered a valid cache value (= do not regenerate)
-    if (cachedShape !== undefined) {
-      return cachedShape;
-    }
-
-    elementWithCanvasCache.delete(element);
-
-    const shape = _generateElementShape(
-      element,
-      ShapeCache.rg,
-      renderConfig || {
-        isExporting: false,
-        canvasBackgroundColor: COLOR_PALETTE.white,
-        embedsValidationStatus: null,
-      },
-    ) as T["type"] extends keyof ElementShapes
-      ? ElementShapes[T["type"]]
-      : Drawable | null;
-
-    ShapeCache.cache.set(element, shape);
-
-    return shape;
-  };
-}

packages/element/src/align.ts

@@ -1,6 +1,8 @@
+import type { AppState } from "@excalidraw/excalidraw/types";
+
 import { updateBoundElements } from "./binding";
 import { getCommonBoundingBox } from "./bounds";
-import { getMaximumGroups } from "./groups";
+import { getSelectedElementsByGroup } from "./groups";
 
 import type { Scene } from "./Scene";
 
@@ -16,11 +18,12 @@ export const alignElements = (
   selectedElements: ExcalidrawElement[],
   alignment: Alignment,
   scene: Scene,
+  appState: Readonly<AppState>,
 ): ExcalidrawElement[] => {
-  const elementsMap = scene.getNonDeletedElementsMap();
-  const groups: ExcalidrawElement[][] = getMaximumGroups(
+  const groups: ExcalidrawElement[][] = getSelectedElementsByGroup(
     selectedElements,
-    elementsMap,
+    scene.getNonDeletedElementsMap(),
+    appState,
   );
   const selectionBoundingBox = getCommonBoundingBox(selectedElements);
 

packages/element/src/binding.ts

@@ -6,7 +6,6 @@ import {
   invariant,
   isDevEnv,
   isTestEnv,
-  elementCenterPoint,
 } from "@excalidraw/common";
 
 import {
@@ -27,8 +26,6 @@ import {
   PRECISION,
 } from "@excalidraw/math";
 
-import { isPointOnShape } from "@excalidraw/utils/collision";
-
 import type { LocalPoint, Radians } from "@excalidraw/math";
 
 import type { AppState } from "@excalidraw/excalidraw/types";
@@ -36,12 +33,12 @@ import type { AppState } from "@excalidraw/excalidraw/types";
 import type { MapEntry, Mutable } from "@excalidraw/common/utility-types";
 
 import {
+  doBoundsIntersect,
   getCenterForBounds,
   getElementBounds,
-  doBoundsIntersect,
 } from "./bounds";
 import { intersectElementWithLineSegment } from "./collision";
-import { distanceToBindableElement } from "./distance";
+import { distanceToElement } from "./distance";
 import {
   headingForPointFromElement,
   headingIsHorizontal,
@@ -63,7 +60,7 @@ import {
   isTextElement,
 } from "./typeChecks";
 
-import { aabbForElement, getElementShape, pointInsideBounds } from "./shapes";
+import { aabbForElement, elementCenterPoint } from "./bounds";
 import { updateElbowArrowPoints } from "./elbowArrow";
 
 import type { Scene } from "./Scene";
@@ -109,7 +106,6 @@ export const isBindingEnabled = (appState: AppState): boolean => {
 
 export const FIXED_BINDING_DISTANCE = 5;
 export const BINDING_HIGHLIGHT_THICKNESS = 10;
-export const BINDING_HIGHLIGHT_OFFSET = 4;
 
 const getNonDeletedElements = (
   scene: Scene,
@@ -131,6 +127,7 @@ export const bindOrUnbindLinearElement = (
   endBindingElement: ExcalidrawBindableElement | null | "keep",
   scene: Scene,
 ): void => {
+  const elementsMap = scene.getNonDeletedElementsMap();
   const boundToElementIds: Set<ExcalidrawBindableElement["id"]> = new Set();
   const unboundFromElementIds: Set<ExcalidrawBindableElement["id"]> = new Set();
   bindOrUnbindLinearElementEdge(
@@ -141,6 +138,7 @@ export const bindOrUnbindLinearElement = (
     boundToElementIds,
     unboundFromElementIds,
     scene,
+    elementsMap,
   );
   bindOrUnbindLinearElementEdge(
     linearElement,
@@ -150,6 +148,7 @@ export const bindOrUnbindLinearElement = (
     boundToElementIds,
     unboundFromElementIds,
     scene,
+    elementsMap,
   );
 
   const onlyUnbound = Array.from(unboundFromElementIds).filter(
@@ -176,6 +175,7 @@ const bindOrUnbindLinearElementEdge = (
   // Is mutated
   unboundFromElementIds: Set<ExcalidrawBindableElement["id"]>,
   scene: Scene,
+  elementsMap: ElementsMap,
 ): void => {
   // "keep" is for method chaining convenience, a "no-op", so just bail out
   if (bindableElement === "keep") {
@@ -216,43 +216,29 @@ const bindOrUnbindLinearElementEdge = (
   }
 };
 
-const getOriginalBindingIfStillCloseOfLinearElementEdge = (
-  linearElement: NonDeleted<ExcalidrawLinearElement>,
-  edge: "start" | "end",
-  elementsMap: NonDeletedSceneElementsMap,
-  zoom?: AppState["zoom"],
-): NonDeleted<ExcalidrawElement> | null => {
-  const coors = getLinearElementEdgeCoors(linearElement, edge, elementsMap);
-  const elementId =
-    edge === "start"
-      ? linearElement.startBinding?.elementId
-      : linearElement.endBinding?.elementId;
-  if (elementId) {
-    const element = elementsMap.get(elementId);
-    if (
-      isBindableElement(element) &&
-      bindingBorderTest(element, coors, elementsMap, zoom)
-    ) {
-      return element;
-    }
-  }
-
-  return null;
-};
-
 const getOriginalBindingsIfStillCloseToArrowEnds = (
   linearElement: NonDeleted<ExcalidrawLinearElement>,
   elementsMap: NonDeletedSceneElementsMap,
   zoom?: AppState["zoom"],
 ): (NonDeleted<ExcalidrawElement> | null)[] =>
-  ["start", "end"].map((edge) =>
-    getOriginalBindingIfStillCloseOfLinearElementEdge(
-      linearElement,
-      edge as "start" | "end",
-      elementsMap,
-      zoom,
-    ),
-  );
+  (["start", "end"] as const).map((edge) => {
+    const coors = getLinearElementEdgeCoors(linearElement, edge, elementsMap);
+    const elementId =
+      edge === "start"
+        ? linearElement.startBinding?.elementId
+        : linearElement.endBinding?.elementId;
+    if (elementId) {
+      const element = elementsMap.get(elementId);
+      if (
+        isBindableElement(element) &&
+        bindingBorderTest(element, coors, elementsMap, zoom)
+      ) {
+        return element;
+      }
+    }
+
+    return null;
+  });
 
 const getBindingStrategyForDraggingArrowEndpoints = (
   selectedElement: NonDeleted<ExcalidrawLinearElement>,
@@ -268,7 +254,7 @@ const getBindingStrategyForDraggingArrowEndpoints = (
   const endDragged = draggingPoints.findIndex((i) => i === endIdx) > -1;
   const start = startDragged
     ? isBindingEnabled
-      ? getElligibleElementForBindingElement(
+      ? getEligibleElementForBindingElement(
           selectedElement,
           "start",
           elementsMap,
@@ -279,7 +265,7 @@ const getBindingStrategyForDraggingArrowEndpoints = (
     : "keep";
   const end = endDragged
     ? isBindingEnabled
-      ? getElligibleElementForBindingElement(
+      ? getEligibleElementForBindingElement(
           selectedElement,
           "end",
           elementsMap,
@@ -311,7 +297,7 @@ const getBindingStrategyForDraggingArrowOrJoints = (
   );
   const start = startIsClose
     ? isBindingEnabled
-      ? getElligibleElementForBindingElement(
+      ? getEligibleElementForBindingElement(
           selectedElement,
           "start",
           elementsMap,
@@ -322,7 +308,7 @@ const getBindingStrategyForDraggingArrowOrJoints = (
     : null;
   const end = endIsClose
     ? isBindingEnabled
-      ? getElligibleElementForBindingElement(
+      ? getEligibleElementForBindingElement(
           selectedElement,
           "end",
           elementsMap,
@@ -398,6 +384,48 @@ export const getSuggestedBindingsForArrows = (
   );
 };
 
+export const maybeSuggestBindingsForLinearElementAtCoords = (
+  linearElement: NonDeleted<ExcalidrawLinearElement>,
+  /** scene coords */
+  pointerCoords: {
+    x: number;
+    y: number;
+  }[],
+  scene: Scene,
+  zoom: AppState["zoom"],
+  // During line creation the start binding hasn't been written yet
+  // into `linearElement`
+  oppositeBindingBoundElement?: ExcalidrawBindableElement | null,
+): ExcalidrawBindableElement[] =>
+  Array.from(
+    pointerCoords.reduce(
+      (acc: Set<NonDeleted<ExcalidrawBindableElement>>, coords) => {
+        const hoveredBindableElement = getHoveredElementForBinding(
+          coords,
+          scene.getNonDeletedElements(),
+          scene.getNonDeletedElementsMap(),
+          zoom,
+          isElbowArrow(linearElement),
+          isElbowArrow(linearElement),
+        );
+
+        if (
+          hoveredBindableElement != null &&
+          !isLinearElementSimpleAndAlreadyBound(
+            linearElement,
+            oppositeBindingBoundElement?.id,
+            hoveredBindableElement,
+          )
+        ) {
+          acc.add(hoveredBindableElement);
+        }
+
+        return acc;
+      },
+      new Set() as Set<NonDeleted<ExcalidrawBindableElement>>,
+    ),
+  );
+
 export const maybeBindLinearElement = (
   linearElement: NonDeleted<ExcalidrawLinearElement>,
   appState: AppState,
@@ -441,22 +469,13 @@ export const maybeBindLinearElement = (
 const normalizePointBinding = (
   binding: { focus: number; gap: number },
   hoveredElement: ExcalidrawBindableElement,
-) => {
-  let gap = binding.gap;
-  const maxGap = maxBindingGap(
-    hoveredElement,
-    hoveredElement.width,
-    hoveredElement.height,
-  );
-
-  if (gap > maxGap) {
-    gap = BINDING_HIGHLIGHT_THICKNESS + BINDING_HIGHLIGHT_OFFSET;
-  }
-  return {
-    ...binding,
-    gap,
-  };
-};
+) => ({
+  ...binding,
+  gap: Math.min(
+    binding.gap,
+    maxBindingGap(hoveredElement, hoveredElement.width, hoveredElement.height),
+  ),
+});
 
 export const bindLinearElement = (
   linearElement: NonDeleted<ExcalidrawLinearElement>,
@@ -488,6 +507,7 @@ export const bindLinearElement = (
         linearElement,
         hoveredElement,
         startOrEnd,
+        scene.getNonDeletedElementsMap(),
       ),
     };
   }
@@ -535,7 +555,7 @@ export const isLinearElementSimpleAndAlreadyBound = (
 
 const isLinearElementSimple = (
   linearElement: NonDeleted<ExcalidrawLinearElement>,
-): boolean => linearElement.points.length < 3;
+): boolean => linearElement.points.length < 3 && !isElbowArrow(linearElement);
 
 const unbindLinearElement = (
   linearElement: NonDeleted<ExcalidrawLinearElement>,
@@ -703,8 +723,13 @@ const calculateFocusAndGap = (
   );
 
   return {
-    focus: determineFocusDistance(hoveredElement, adjacentPoint, edgePoint),
-    gap: Math.max(1, distanceToBindableElement(hoveredElement, edgePoint)),
+    focus: determineFocusDistance(
+      hoveredElement,
+      elementsMap,
+      adjacentPoint,
+      edgePoint,
+    ),
+    gap: Math.max(1, distanceToElement(hoveredElement, elementsMap, edgePoint)),
   };
 };
 
@@ -874,6 +899,7 @@ export const getHeadingForElbowArrowSnap = (
   bindableElement: ExcalidrawBindableElement | undefined | null,
   aabb: Bounds | undefined | null,
   origPoint: GlobalPoint,
+  elementsMap: ElementsMap,
   zoom?: AppState["zoom"],
 ): Heading => {
   const otherPointHeading = vectorToHeading(vectorFromPoint(otherPoint, p));
@@ -882,11 +908,16 @@ export const getHeadingForElbowArrowSnap = (
     return otherPointHeading;
   }
 
-  const distance = getDistanceForBinding(origPoint, bindableElement, zoom);
+  const distance = getDistanceForBinding(
+    origPoint,
+    bindableElement,
+    elementsMap,
+    zoom,
+  );
 
   if (!distance) {
     return vectorToHeading(
-      vectorFromPoint(p, elementCenterPoint(bindableElement)),
+      vectorFromPoint(p, elementCenterPoint(bindableElement, elementsMap)),
     );
   }
 
@@ -896,9 +927,10 @@ export const getHeadingForElbowArrowSnap = (
 const getDistanceForBinding = (
   point: Readonly<GlobalPoint>,
   bindableElement: ExcalidrawBindableElement,
+  elementsMap: ElementsMap,
   zoom?: AppState["zoom"],
 ) => {
-  const distance = distanceToBindableElement(bindableElement, point);
+  const distance = distanceToElement(bindableElement, elementsMap, point);
   const bindDistance = maxBindingGap(
     bindableElement,
     bindableElement.width,
@@ -913,12 +945,13 @@ export const bindPointToSnapToElementOutline = (
   arrow: ExcalidrawElbowArrowElement,
   bindableElement: ExcalidrawBindableElement,
   startOrEnd: "start" | "end",
+  elementsMap: ElementsMap,
 ): GlobalPoint => {
   if (isDevEnv() || isTestEnv()) {
     invariant(arrow.points.length > 1, "Arrow should have at least 2 points");
   }
 
-  const aabb = aabbForElement(bindableElement);
+  const aabb = aabbForElement(bindableElement, elementsMap);
   const localP =
     arrow.points[startOrEnd === "start" ? 0 : arrow.points.length - 1];
   const globalP = pointFrom<GlobalPoint>(
@@ -926,7 +959,7 @@ export const bindPointToSnapToElementOutline = (
     arrow.y + localP[1],
   );
   const edgePoint = isRectanguloidElement(bindableElement)
-    ? avoidRectangularCorner(bindableElement, globalP)
+    ? avoidRectangularCorner(bindableElement, elementsMap, globalP)
     : globalP;
   const elbowed = isElbowArrow(arrow);
   const center = getCenterForBounds(aabb);
@@ -945,26 +978,31 @@ export const bindPointToSnapToElementOutline = (
     const isHorizontal = headingIsHorizontal(
       headingForPointFromElement(bindableElement, aabb, globalP),
     );
+    const snapPoint = snapToMid(bindableElement, elementsMap, edgePoint);
     const otherPoint = pointFrom<GlobalPoint>(
-      isHorizontal ? center[0] : edgePoint[0],
-      !isHorizontal ? center[1] : edgePoint[1],
+      isHorizontal ? center[0] : snapPoint[0],
+      !isHorizontal ? center[1] : snapPoint[1],
+    );
+    const intersector = lineSegment(
+      otherPoint,
+      pointFromVector(
+        vectorScale(
+          vectorNormalize(vectorFromPoint(snapPoint, otherPoint)),
+          Math.max(bindableElement.width, bindableElement.height) * 2,
+        ),
+        otherPoint,
+      ),
     );
     intersection = intersectElementWithLineSegment(
       bindableElement,
-      lineSegment(
-        otherPoint,
-        pointFromVector(
-          vectorScale(
-            vectorNormalize(vectorFromPoint(edgePoint, otherPoint)),
-            Math.max(bindableElement.width, bindableElement.height) * 2,
-          ),
-          otherPoint,
-        ),
-      ),
-    )[0];
+      elementsMap,
+      intersector,
+      FIXED_BINDING_DISTANCE,
+    ).sort(pointDistanceSq)[0];
   } else {
     intersection = intersectElementWithLineSegment(
       bindableElement,
+      elementsMap,
       lineSegment(
         adjacentPoint,
         pointFromVector(
@@ -991,31 +1029,15 @@ export const bindPointToSnapToElementOutline = (
     return edgePoint;
   }
 
-  if (elbowed) {
-    const scalar =
-      pointDistanceSq(edgePoint, center) -
-        pointDistanceSq(intersection, center) >
-      0
-        ? FIXED_BINDING_DISTANCE
-        : -FIXED_BINDING_DISTANCE;
-
-    return pointFromVector(
-      vectorScale(
-        vectorNormalize(vectorFromPoint(edgePoint, intersection)),
-        scalar,
-      ),
-      intersection,
-    );
-  }
-
-  return edgePoint;
+  return elbowed ? intersection : edgePoint;
 };
 
 export const avoidRectangularCorner = (
   element: ExcalidrawBindableElement,
+  elementsMap: ElementsMap,
   p: GlobalPoint,
 ): GlobalPoint => {
-  const center = elementCenterPoint(element);
+  const center = elementCenterPoint(element, elementsMap);
   const nonRotatedPoint = pointRotateRads(p, center, -element.angle as Radians);
 
   if (nonRotatedPoint[0] < element.x && nonRotatedPoint[1] < element.y) {
@@ -1108,35 +1130,34 @@ export const avoidRectangularCorner = (
 
 export const snapToMid = (
   element: ExcalidrawBindableElement,
+  elementsMap: ElementsMap,
   p: GlobalPoint,
   tolerance: number = 0.05,
 ): GlobalPoint => {
   const { x, y, width, height, angle } = element;
-
-  const center = elementCenterPoint(element, -0.1, -0.1);
-
+  const center = elementCenterPoint(element, elementsMap, -0.1, -0.1);
   const nonRotated = pointRotateRads(p, center, -angle as Radians);
 
   // snap-to-center point is adaptive to element size, but we don't want to go
   // above and below certain px distance
-  const verticalThrehsold = clamp(tolerance * height, 5, 80);
-  const horizontalThrehsold = clamp(tolerance * width, 5, 80);
+  const verticalThreshold = clamp(tolerance * height, 5, 80);
+  const horizontalThreshold = clamp(tolerance * width, 5, 80);
 
   if (
     nonRotated[0] <= x + width / 2 &&
-    nonRotated[1] > center[1] - verticalThrehsold &&
-    nonRotated[1] < center[1] + verticalThrehsold
+    nonRotated[1] > center[1] - verticalThreshold &&
+    nonRotated[1] < center[1] + verticalThreshold
   ) {
     // LEFT
-    return pointRotateRads(
+    return pointRotateRads<GlobalPoint>(
       pointFrom(x - FIXED_BINDING_DISTANCE, center[1]),
       center,
       angle,
     );
   } else if (
     nonRotated[1] <= y + height / 2 &&
-    nonRotated[0] > center[0] - horizontalThrehsold &&
-    nonRotated[0] < center[0] + horizontalThrehsold
+    nonRotated[0] > center[0] - horizontalThreshold &&
+    nonRotated[0] < center[0] + horizontalThreshold
   ) {
     // TOP
     return pointRotateRads(
@@ -1146,8 +1167,8 @@ export const snapToMid = (
     );
   } else if (
     nonRotated[0] >= x + width / 2 &&
-    nonRotated[1] > center[1] - verticalThrehsold &&
-    nonRotated[1] < center[1] + verticalThrehsold
+    nonRotated[1] > center[1] - verticalThreshold &&
+    nonRotated[1] < center[1] + verticalThreshold
   ) {
     // RIGHT
     return pointRotateRads(
@@ -1157,8 +1178,8 @@ export const snapToMid = (
     );
   } else if (
     nonRotated[1] >= y + height / 2 &&
-    nonRotated[0] > center[0] - horizontalThrehsold &&
-    nonRotated[0] < center[0] + horizontalThrehsold
+    nonRotated[0] > center[0] - horizontalThreshold &&
+    nonRotated[0] < center[0] + horizontalThreshold
   ) {
     // DOWN
     return pointRotateRads(
@@ -1167,7 +1188,7 @@ export const snapToMid = (
       angle,
     );
   } else if (element.type === "diamond") {
-    const distance = FIXED_BINDING_DISTANCE - 1;
+    const distance = FIXED_BINDING_DISTANCE;
     const topLeft = pointFrom<GlobalPoint>(
       x + width / 4 - distance,
       y + height / 4 - distance,
@@ -1184,27 +1205,28 @@ export const snapToMid = (
       x + (3 * width) / 4 + distance,
       y + (3 * height) / 4 + distance,
     );
+
     if (
       pointDistance(topLeft, nonRotated) <
-      Math.max(horizontalThrehsold, verticalThrehsold)
+      Math.max(horizontalThreshold, verticalThreshold)
     ) {
       return pointRotateRads(topLeft, center, angle);
     }
     if (
       pointDistance(topRight, nonRotated) <
-      Math.max(horizontalThrehsold, verticalThrehsold)
+      Math.max(horizontalThreshold, verticalThreshold)
     ) {
       return pointRotateRads(topRight, center, angle);
     }
     if (
       pointDistance(bottomLeft, nonRotated) <
-      Math.max(horizontalThrehsold, verticalThrehsold)
+      Math.max(horizontalThreshold, verticalThreshold)
     ) {
       return pointRotateRads(bottomLeft, center, angle);
     }
     if (
       pointDistance(bottomRight, nonRotated) <
-      Math.max(horizontalThrehsold, verticalThrehsold)
+      Math.max(horizontalThreshold, verticalThreshold)
     ) {
       return pointRotateRads(bottomRight, center, angle);
     }
@@ -1239,8 +1261,9 @@ const updateBoundPoint = (
         linearElement,
         bindableElement,
         startOrEnd === "startBinding" ? "start" : "end",
+        elementsMap,
       ).fixedPoint;
-    const globalMidPoint = elementCenterPoint(bindableElement);
+    const globalMidPoint = elementCenterPoint(bindableElement, elementsMap);
     const global = pointFrom<GlobalPoint>(
       bindableElement.x + fixedPoint[0] * bindableElement.width,
       bindableElement.y + fixedPoint[1] * bindableElement.height,
@@ -1266,6 +1289,7 @@ const updateBoundPoint = (
   );
   const focusPointAbsolute = determineFocusPoint(
     bindableElement,
+    elementsMap,
     binding.focus,
     adjacentPoint,
   );
@@ -1284,7 +1308,7 @@ const updateBoundPoint = (
         elementsMap,
       );
 
-    const center = elementCenterPoint(bindableElement);
+    const center = elementCenterPoint(bindableElement, elementsMap);
     const interceptorLength =
       pointDistance(adjacentPoint, edgePointAbsolute) +
       pointDistance(adjacentPoint, center) +
@@ -1292,6 +1316,7 @@ const updateBoundPoint = (
     const intersections = [
       ...intersectElementWithLineSegment(
         bindableElement,
+        elementsMap,
         lineSegment<GlobalPoint>(
           adjacentPoint,
           pointFromVector(
@@ -1342,6 +1367,7 @@ export const calculateFixedPointForElbowArrowBinding = (
   linearElement: NonDeleted<ExcalidrawElbowArrowElement>,
   hoveredElement: ExcalidrawBindableElement,
   startOrEnd: "start" | "end",
+  elementsMap: ElementsMap,
 ): { fixedPoint: FixedPoint } => {
   const bounds = [
     hoveredElement.x,
@@ -1353,6 +1379,7 @@ export const calculateFixedPointForElbowArrowBinding = (
     linearElement,
     hoveredElement,
     startOrEnd,
+    elementsMap,
   );
   const globalMidPoint = pointFrom(
     bounds[0] + (bounds[2] - bounds[0]) / 2,
@@ -1396,7 +1423,7 @@ const maybeCalculateNewGapWhenScaling = (
   return { ...currentBinding, gap: newGap };
 };
 
-const getElligibleElementForBindingElement = (
+const getEligibleElementForBindingElement = (
   linearElement: NonDeleted<ExcalidrawLinearElement>,
   startOrEnd: "start" | "end",
   elementsMap: NonDeletedSceneElementsMap,
@@ -1548,14 +1575,38 @@ export const bindingBorderTest = (
   zoom?: AppState["zoom"],
   fullShape?: boolean,
 ): boolean => {
+  const p = pointFrom<GlobalPoint>(x, y);
   const threshold = maxBindingGap(element, element.width, element.height, zoom);
+  const shouldTestInside =
+    // disable fullshape snapping for frame elements so we
+    // can bind to frame children
+    (fullShape || !isBindingFallthroughEnabled(element)) &&
+    !isFrameLikeElement(element);
 
-  const shape = getElementShape(element, elementsMap);
-  return (
-    isPointOnShape(pointFrom(x, y), shape, threshold) ||
-    (fullShape === true &&
-      pointInsideBounds(pointFrom(x, y), aabbForElement(element)))
+  // PERF: Run a cheap test to see if the binding element
+  // is even close to the element
+  const bounds = [
+    x - threshold,
+    y - threshold,
+    x + threshold,
+    y + threshold,
+  ] as Bounds;
+  const elementBounds = getElementBounds(element, elementsMap);
+  if (!doBoundsIntersect(bounds, elementBounds)) {
+    return false;
+  }
+
+  // Do the intersection test against the element since it's close enough
+  const intersections = intersectElementWithLineSegment(
+    element,
+    elementsMap,
+    lineSegment(elementCenterPoint(element, elementsMap), p),
   );
+  const distance = distanceToElement(element, elementsMap, p);
+
+  return shouldTestInside
+    ? intersections.length === 0 || distance <= threshold
+    : intersections.length > 0 && distance <= threshold;
 };
 
 export const maxBindingGap = (
@@ -1575,7 +1626,7 @@ export const maxBindingGap = (
     // bigger bindable boundary for bigger elements
     Math.min(0.25 * smallerDimension, 32),
     // keep in sync with the zoomed highlight
-    BINDING_HIGHLIGHT_THICKNESS / zoomValue + BINDING_HIGHLIGHT_OFFSET,
+    BINDING_HIGHLIGHT_THICKNESS / zoomValue + FIXED_BINDING_DISTANCE,
   );
 };
 
@@ -1586,12 +1637,13 @@ export const maxBindingGap = (
 // of the element.
 const determineFocusDistance = (
   element: ExcalidrawBindableElement,
+  elementsMap: ElementsMap,
   // Point on the line, in absolute coordinates
   a: GlobalPoint,
   // Another point on the line, in absolute coordinates (closer to element)
   b: GlobalPoint,
 ): number => {
-  const center = elementCenterPoint(element);
+  const center = elementCenterPoint(element, elementsMap);
 
   if (pointsEqual(a, b)) {
     return 0;
@@ -1716,12 +1768,13 @@ const determineFocusDistance = (
 
 const determineFocusPoint = (
   element: ExcalidrawBindableElement,
+  elementsMap: ElementsMap,
   // The oriented, relative distance from the center of `element` of the
   // returned focusPoint
   focus: number,
   adjacentPoint: GlobalPoint,
 ): GlobalPoint => {
-  const center = elementCenterPoint(element);
+  const center = elementCenterPoint(element, elementsMap);
 
   if (focus === 0) {
     return center;
@@ -2144,6 +2197,7 @@ export class BindableElement {
 export const getGlobalFixedPointForBindableElement = (
   fixedPointRatio: [number, number],
   element: ExcalidrawBindableElement,
+  elementsMap: ElementsMap,
 ): GlobalPoint => {
   const [fixedX, fixedY] = normalizeFixedPoint(fixedPointRatio);
 
@@ -2152,7 +2206,7 @@ export const getGlobalFixedPointForBindableElement = (
       element.x + element.width * fixedX,
       element.y + element.height * fixedY,
     ),
-    elementCenterPoint(element),
+    elementCenterPoint(element, elementsMap),
     element.angle,
   );
 };
@@ -2176,6 +2230,7 @@ export const getGlobalFixedPoints = (
       ? getGlobalFixedPointForBindableElement(
           arrow.startBinding.fixedPoint,
           startElement as ExcalidrawBindableElement,
+          elementsMap,
         )
       : pointFrom<GlobalPoint>(
           arrow.x + arrow.points[0][0],
@@ -2186,6 +2241,7 @@ export const getGlobalFixedPoints = (
       ? getGlobalFixedPointForBindableElement(
           arrow.endBinding.fixedPoint,
           endElement as ExcalidrawBindableElement,
+          elementsMap,
         )
       : pointFrom<GlobalPoint>(
           arrow.x + arrow.points[arrow.points.length - 1][0],

packages/element/src/bounds.ts

@@ -33,8 +33,8 @@ import type { AppState } from "@excalidraw/excalidraw/types";
 
 import type { Mutable } from "@excalidraw/common/utility-types";
 
-import { generateRoughOptions } from "./Shape";
-import { ShapeCache } from "./ShapeCache";
+import { generateRoughOptions } from "./shape";
+import { ShapeCache } from "./shape";
 import { LinearElementEditor } from "./linearElementEditor";
 import { getBoundTextElement, getContainerElement } from "./textElement";
 import {
@@ -45,7 +45,7 @@ import {
   isTextElement,
 } from "./typeChecks";
 
-import { getElementShape } from "./shapes";
+import { getElementShape } from "./shape";
 
 import {
   deconstructDiamondElement,
@@ -102,9 +102,23 @@ export class ElementBounds {
       version: ExcalidrawElement["version"];
     }
   >();
+  private static nonRotatedBoundsCache = new WeakMap<
+    ExcalidrawElement,
+    {
+      bounds: Bounds;
+      version: ExcalidrawElement["version"];
+    }
+  >();
 
-  static getBounds(element: ExcalidrawElement, elementsMap: ElementsMap) {
-    const cachedBounds = ElementBounds.boundsCache.get(element);
+  static getBounds(
+    element: ExcalidrawElement,
+    elementsMap: ElementsMap,
+    nonRotated: boolean = false,
+  ) {
+    const cachedBounds =
+      nonRotated && element.angle !== 0
+        ? ElementBounds.nonRotatedBoundsCache.get(element)
+        : ElementBounds.boundsCache.get(element);
 
     if (
       cachedBounds?.version &&
@@ -115,6 +129,23 @@ export class ElementBounds {
     ) {
       return cachedBounds.bounds;
     }
+
+    if (nonRotated && element.angle !== 0) {
+      const nonRotatedBounds = ElementBounds.calculateBounds(
+        {
+          ...element,
+          angle: 0 as Radians,
+        },
+        elementsMap,
+      );
+      ElementBounds.nonRotatedBoundsCache.set(element, {
+        version: element.version,
+        bounds: nonRotatedBounds,
+      });
+
+      return nonRotatedBounds;
+    }
+
     const bounds = ElementBounds.calculateBounds(element, elementsMap);
 
     ElementBounds.boundsCache.set(element, {
@@ -553,7 +584,7 @@ const solveQuadratic = (
   return [s1, s2];
 };
 
-const getCubicBezierCurveBound = (
+export const getCubicBezierCurveBound = (
   p0: GlobalPoint,
   p1: GlobalPoint,
   p2: GlobalPoint,
@@ -939,8 +970,9 @@ const getLinearElementRotatedBounds = (
 export const getElementBounds = (
   element: ExcalidrawElement,
   elementsMap: ElementsMap,
+  nonRotated: boolean = false,
 ): Bounds => {
-  return ElementBounds.getBounds(element, elementsMap);
+  return ElementBounds.getBounds(element, elementsMap, nonRotated);
 };
 
 export const getCommonBounds = (
@@ -1133,6 +1165,71 @@ export const getCenterForBounds = (bounds: Bounds): GlobalPoint =>
     bounds[1] + (bounds[3] - bounds[1]) / 2,
   );
 
+/**
+ * Get the axis-aligned bounding box for a given element
+ */
+export const aabbForElement = (
+  element: Readonly<ExcalidrawElement>,
+  elementsMap: ElementsMap,
+  offset?: [number, number, number, number],
+) => {
+  const bbox = {
+    minX: element.x,
+    minY: element.y,
+    maxX: element.x + element.width,
+    maxY: element.y + element.height,
+    midX: element.x + element.width / 2,
+    midY: element.y + element.height / 2,
+  };
+
+  const center = elementCenterPoint(element, elementsMap);
+  const [topLeftX, topLeftY] = pointRotateRads(
+    pointFrom(bbox.minX, bbox.minY),
+    center,
+    element.angle,
+  );
+  const [topRightX, topRightY] = pointRotateRads(
+    pointFrom(bbox.maxX, bbox.minY),
+    center,
+    element.angle,
+  );
+  const [bottomRightX, bottomRightY] = pointRotateRads(
+    pointFrom(bbox.maxX, bbox.maxY),
+    center,
+    element.angle,
+  );
+  const [bottomLeftX, bottomLeftY] = pointRotateRads(
+    pointFrom(bbox.minX, bbox.maxY),
+    center,
+    element.angle,
+  );
+
+  const bounds = [
+    Math.min(topLeftX, topRightX, bottomRightX, bottomLeftX),
+    Math.min(topLeftY, topRightY, bottomRightY, bottomLeftY),
+    Math.max(topLeftX, topRightX, bottomRightX, bottomLeftX),
+    Math.max(topLeftY, topRightY, bottomRightY, bottomLeftY),
+  ] as Bounds;
+
+  if (offset) {
+    const [topOffset, rightOffset, downOffset, leftOffset] = offset;
+    return [
+      bounds[0] - leftOffset,
+      bounds[1] - topOffset,
+      bounds[2] + rightOffset,
+      bounds[3] + downOffset,
+    ] as Bounds;
+  }
+
+  return bounds;
+};
+
+export const pointInsideBounds = <P extends GlobalPoint | LocalPoint>(
+  p: P,
+  bounds: Bounds,
+): boolean =>
+  p[0] > bounds[0] && p[0] < bounds[2] && p[1] > bounds[1] && p[1] < bounds[3];
+
 export const doBoundsIntersect = (
   bounds1: Bounds | null,
   bounds2: Bounds | null,
@@ -1146,3 +1243,14 @@ export const doBoundsIntersect = (
 
   return minX1 < maxX2 && maxX1 > minX2 && minY1 < maxY2 && maxY1 > minY2;
 };
+
+export const elementCenterPoint = (
+  element: ExcalidrawElement,
+  elementsMap: ElementsMap,
+  xOffset: number = 0,
+  yOffset: number = 0,
+) => {
+  const [x, y] = getCenterForBounds(getElementBounds(element, elementsMap));
+
+  return pointFrom<GlobalPoint>(x + xOffset, y + yOffset);
+};

packages/element/src/collision.ts

@@ -1,52 +1,68 @@
-import { isTransparent, elementCenterPoint } from "@excalidraw/common";
+import { isTransparent } from "@excalidraw/common";
 import {
   curveIntersectLineSegment,
   isPointWithinBounds,
-  line,
   lineSegment,
   lineSegmentIntersectionPoints,
   pointFrom,
+  pointFromVector,
   pointRotateRads,
   pointsEqual,
+  vectorFromPoint,
+  vectorNormalize,
+  vectorScale,
 } from "@excalidraw/math";
 
 import {
   ellipse,
-  ellipseLineIntersectionPoints,
+  ellipseSegmentInterceptPoints,
 } from "@excalidraw/math/ellipse";
 
-import { isPointInShape, isPointOnShape } from "@excalidraw/utils/collision";
-import { type GeometricShape, getPolygonShape } from "@excalidraw/utils/shape";
-
 import type {
+  Curve,
   GlobalPoint,
   LineSegment,
-  LocalPoint,
-  Polygon,
   Radians,
 } from "@excalidraw/math";
 
 import type { FrameNameBounds } from "@excalidraw/excalidraw/types";
 
-import { getBoundTextShape, isPathALoop } from "./shapes";
-import { getElementBounds } from "./bounds";
+import { isPathALoop } from "./utils";
+import {
+  type Bounds,
+  doBoundsIntersect,
+  elementCenterPoint,
+  getCenterForBounds,
+  getCubicBezierCurveBound,
+  getElementBounds,
+} from "./bounds";
 import {
   hasBoundTextElement,
+  isFreeDrawElement,
   isIframeLikeElement,
   isImageElement,
+  isLinearElement,
   isTextElement,
 } from "./typeChecks";
 import {
   deconstructDiamondElement,
+  deconstructLinearOrFreeDrawElement,
   deconstructRectanguloidElement,
 } from "./utils";
 
+import { getBoundTextElement } from "./textElement";
+
+import { LinearElementEditor } from "./linearElementEditor";
+
+import { distanceToElement } from "./distance";
+
 import type {
   ElementsMap,
   ExcalidrawDiamondElement,
   ExcalidrawElement,
   ExcalidrawEllipseElement,
-  ExcalidrawRectangleElement,
+  ExcalidrawFreeDrawElement,
+  ExcalidrawLinearElement,
   ExcalidrawRectanguloidElement,
 } from "./types";
 
@@ -72,45 +88,64 @@ export const shouldTestInside = (element: ExcalidrawElement) => {
   return isDraggableFromInside || isImageElement(element);
 };
 
-export type HitTestArgs<Point extends GlobalPoint | LocalPoint> = {
-  x: number;
-  y: number;
+export type HitTestArgs = {
+  point: GlobalPoint;
   element: ExcalidrawElement;
-  shape: GeometricShape<Point>;
-  threshold?: number;
+  threshold: number;
+  elementsMap: ElementsMap;
   frameNameBound?: FrameNameBounds | null;
 };
 
-export const hitElementItself = <Point extends GlobalPoint | LocalPoint>({
-  x,
-  y,
+export const hitElementItself = ({
+  point,
   element,
-  shape,
-  threshold = 10,
+  threshold,
+  elementsMap,
   frameNameBound = null,
-}: HitTestArgs<Point>) => {
-  let hit = shouldTestInside(element)
-    ? // Since `inShape` tests STRICTLY againt the insides of a shape
-      // we would need `onShape` as well to include the "borders"
-      isPointInShape(pointFrom(x, y), shape) ||
-      isPointOnShape(pointFrom(x, y), shape, threshold)
-    : isPointOnShape(pointFrom(x, y), shape, threshold);
+}: HitTestArgs) => {
+  // Hit test against a frame's name
+  const hitFrameName = frameNameBound
+    ? isPointWithinBounds(
+        pointFrom(frameNameBound.x - threshold, frameNameBound.y - threshold),
+        point,
+        pointFrom(
+          frameNameBound.x + frameNameBound.width + threshold,
+          frameNameBound.y + frameNameBound.height + threshold,
+        ),
+      )
+    : false;
 
-  // hit test against a frame's name
-  if (!hit && frameNameBound) {
-    hit = isPointInShape(pointFrom(x, y), {
-      type: "polygon",
-      data: getPolygonShape(frameNameBound as ExcalidrawRectangleElement)
-        .data as Polygon<Point>,
-    });
+  // Hit test against the extended, rotated bounding box of the element first
+  const bounds = getElementBounds(element, elementsMap, true);
+  const hitBounds = isPointWithinBounds(
+    pointFrom(bounds[0] - threshold, bounds[1] - threshold),
+    pointRotateRads(
+      point,
+      getCenterForBounds(bounds),
+      -element.angle as Radians,
+    ),
+    pointFrom(bounds[2] + threshold, bounds[3] + threshold),
+  );
+
+  // PERF: Bail out early if the point is not even in the
+  // rotated bounding box or not hitting the frame name (saves 99%)
+  if (!hitBounds && !hitFrameName) {
+    return false;
   }
 
-  return hit;
+  // Do the precise (and relatively costly) hit test
+  const hitElement = shouldTestInside(element)
+    ? // Since `inShape` tests STRICTLY againt the insides of a shape
+      // we would need `onShape` as well to include the "borders"
+      isPointInElement(point, element, elementsMap) ||
+      isPointOnElementOutline(point, element, elementsMap, threshold)
+    : isPointOnElementOutline(point, element, elementsMap, threshold);
+
+  return hitElement || hitFrameName;
 };
 
 export const hitElementBoundingBox = (
-  x: number,
-  y: number,
+  point: GlobalPoint,
   element: ExcalidrawElement,
   elementsMap: ElementsMap,
   tolerance = 0,
@@ -120,37 +155,42 @@ export const hitElementBoundingBox = (
   y1 -= tolerance;
   x2 += tolerance;
   y2 += tolerance;
-  return isPointWithinBounds(
-    pointFrom(x1, y1),
-    pointFrom(x, y),
-    pointFrom(x2, y2),
-  );
+  return isPointWithinBounds(pointFrom(x1, y1), point, pointFrom(x2, y2));
 };
 
-export const hitElementBoundingBoxOnly = <
-  Point extends GlobalPoint | LocalPoint,
->(
-  hitArgs: HitTestArgs<Point>,
+export const hitElementBoundingBoxOnly = (
+  hitArgs: HitTestArgs,
   elementsMap: ElementsMap,
-) => {
-  return (
-    !hitElementItself(hitArgs) &&
-    // bound text is considered part of the element (even if it's outside the bounding box)
-    !hitElementBoundText(
-      hitArgs.x,
-      hitArgs.y,
-      getBoundTextShape(hitArgs.element, elementsMap),
-    ) &&
-    hitElementBoundingBox(hitArgs.x, hitArgs.y, hitArgs.element, elementsMap)
-  );
-};
+) =>
+  !hitElementItself(hitArgs) &&
+  // bound text is considered part of the element (even if it's outside the bounding box)
+  !hitElementBoundText(hitArgs.point, hitArgs.element, elementsMap) &&
+  hitElementBoundingBox(hitArgs.point, hitArgs.element, elementsMap);
 
-export const hitElementBoundText = <Point extends GlobalPoint | LocalPoint>(
-  x: number,
-  y: number,
-  textShape: GeometricShape<Point> | null,
+export const hitElementBoundText = (
+  point: GlobalPoint,
+  element: ExcalidrawElement,
+  elementsMap: ElementsMap,
 ): boolean => {
-  return !!textShape && isPointInShape(pointFrom(x, y), textShape);
+  const boundTextElementCandidate = getBoundTextElement(element, elementsMap);
+
+  if (!boundTextElementCandidate) {
+    return false;
+  }
+  const boundTextElement = isLinearElement(element)
+    ? {
+        ...boundTextElementCandidate,
+        // arrow's bound text accurate position is not stored in the element's property
+        // but rather calculated and returned from the following static method
+        ...LinearElementEditor.getBoundTextElementPosition(
+          element,
+          boundTextElementCandidate,
+          elementsMap,
+        ),
+      }
+    : boundTextElementCandidate;
+
+  return isPointInElement(point, boundTextElement, elementsMap);
 };
 
 /**
@@ -163,9 +203,26 @@ export const hitElementBoundText = <Point extends GlobalPoint | LocalPoint>(
  */
 export const intersectElementWithLineSegment = (
   element: ExcalidrawElement,
+  elementsMap: ElementsMap,
   line: LineSegment<GlobalPoint>,
   offset: number = 0,
+  onlyFirst = false,
 ): GlobalPoint[] => {
+  // First check if the line intersects the element's axis-aligned bounding box
+  // as it is much faster than checking intersection against the element's shape
+  const intersectorBounds = [
+    Math.min(line[0][0] - offset, line[1][0] - offset),
+    Math.min(line[0][1] - offset, line[1][1] - offset),
+    Math.max(line[0][0] + offset, line[1][0] + offset),
+    Math.max(line[0][1] + offset, line[1][1] + offset),
+  ] as Bounds;
+  const elementBounds = getElementBounds(element, elementsMap);
+
+  if (!doBoundsIntersect(intersectorBounds, elementBounds)) {
+    return [];
+  }
+
+  // Do the actual intersection test against the element's shape
   switch (element.type) {
     case "rectangle":
     case "image":
@@ -173,67 +230,196 @@ export const intersectElementWithLineSegment = (
     case "iframe":
     case "embeddable":
     case "frame":
+    case "selection":
     case "magicframe":
-      return intersectRectanguloidWithLineSegment(element, line, offset);
+      return intersectRectanguloidWithLineSegment(
+        element,
+        elementsMap,
+        line,
+        offset,
+        onlyFirst,
+      );
     case "diamond":
-      return intersectDiamondWithLineSegment(element, line, offset);
+      return intersectDiamondWithLineSegment(
+        element,
+        elementsMap,
+        line,
+        offset,
+        onlyFirst,
+      );
     case "ellipse":
-      return intersectEllipseWithLineSegment(element, line, offset);
-    default:
-      throw new Error(`Unimplemented element type '${element.type}'`);
+      return intersectEllipseWithLineSegment(
+        element,
+        elementsMap,
+        line,
+        offset,
+      );
+    case "line":
+    case "freedraw":
+    case "arrow":
+      return intersectLinearOrFreeDrawWithLineSegment(element, line, onlyFirst);
   }
 };
 
+const curveIntersections = (
+  curves: Curve<GlobalPoint>[],
+  segment: LineSegment<GlobalPoint>,
+  intersections: GlobalPoint[],
+  center: GlobalPoint,
+  angle: Radians,
+  onlyFirst = false,
+) => {
+  for (const c of curves) {
+    // Optimize by doing a cheap bounding box check first
+    const b1 = getCubicBezierCurveBound(c[0], c[1], c[2], c[3]);
+    const b2 = [
+      Math.min(segment[0][0], segment[1][0]),
+      Math.min(segment[0][1], segment[1][1]),
+      Math.max(segment[0][0], segment[1][0]),
+      Math.max(segment[0][1], segment[1][1]),
+    ] as Bounds;
+
+    if (!doBoundsIntersect(b1, b2)) {
+      continue;
+    }
+
+    const hits = curveIntersectLineSegment(c, segment);
+
+    if (hits.length > 0) {
+      for (const j of hits) {
+        intersections.push(pointRotateRads(j, center, angle));
+      }
+
+      if (onlyFirst) {
+        return intersections;
+      }
+    }
+  }
+
+  return intersections;
+};
+
+const lineIntersections = (
+  lines: LineSegment<GlobalPoint>[],
+  segment: LineSegment<GlobalPoint>,
+  intersections: GlobalPoint[],
+  center: GlobalPoint,
+  angle: Radians,
+  onlyFirst = false,
+) => {
+  for (const l of lines) {
+    const intersection = lineSegmentIntersectionPoints(l, segment);
+    if (intersection) {
+      intersections.push(pointRotateRads(intersection, center, angle));
+
+      if (onlyFirst) {
+        return intersections;
+      }
+    }
+  }
+
+  return intersections;
+};
+
+const intersectLinearOrFreeDrawWithLineSegment = (
+  element: ExcalidrawLinearElement | ExcalidrawFreeDrawElement,
+  segment: LineSegment<GlobalPoint>,
+  onlyFirst = false,
+): GlobalPoint[] => {
+  // NOTE: This is the only one which return the decomposed elements
+  // rotated! This is due to taking advantage of roughjs definitions.
+  const [lines, curves] = deconstructLinearOrFreeDrawElement(element);
+  const intersections: GlobalPoint[] = [];
+
+  for (const l of lines) {
+    const intersection = lineSegmentIntersectionPoints(l, segment);
+    if (intersection) {
+      intersections.push(intersection);
+
+      if (onlyFirst) {
+        return intersections;
+      }
+    }
+  }
+
+  for (const c of curves) {
+    // Optimize by doing a cheap bounding box check first
+    const b1 = getCubicBezierCurveBound(c[0], c[1], c[2], c[3]);
+    const b2 = [
+      Math.min(segment[0][0], segment[1][0]),
+      Math.min(segment[0][1], segment[1][1]),
+      Math.max(segment[0][0], segment[1][0]),
+      Math.max(segment[0][1], segment[1][1]),
+    ] as Bounds;
+
+    if (!doBoundsIntersect(b1, b2)) {
+      continue;
+    }
+
+    const hits = curveIntersectLineSegment(c, segment);
+
+    if (hits.length > 0) {
+      intersections.push(...hits);
+
+      if (onlyFirst) {
+        return intersections;
+      }
+    }
+  }
+
+  return intersections;
+};
+
 const intersectRectanguloidWithLineSegment = (
   element: ExcalidrawRectanguloidElement,
-  l: LineSegment<GlobalPoint>,
+  elementsMap: ElementsMap,
+  segment: LineSegment<GlobalPoint>,
   offset: number = 0,
+  onlyFirst = false,
 ): GlobalPoint[] => {
-  const center = elementCenterPoint(element);
+  const center = elementCenterPoint(element, elementsMap);
   // To emulate a rotated rectangle we rotate the point in the inverse angle
   // instead. It's all the same distance-wise.
   const rotatedA = pointRotateRads<GlobalPoint>(
-    l[0],
+    segment[0],
     center,
     -element.angle as Radians,
   );
   const rotatedB = pointRotateRads<GlobalPoint>(
-    l[1],
+    segment[1],
     center,
     -element.angle as Radians,
   );
+  const rotatedIntersector = lineSegment(rotatedA, rotatedB);
 
   // Get the element's building components we can test against
   const [sides, corners] = deconstructRectanguloidElement(element, offset);
 
-  return (
-    // Test intersection against the sides, keep only the valid
-    // intersection points and rotate them back to scene space
-    sides
-      .map((s) =>
-        lineSegmentIntersectionPoints(
-          lineSegment<GlobalPoint>(rotatedA, rotatedB),
-          s,
-        ),
-      )
-      .filter((x) => x != null)
-      .map((j) => pointRotateRads<GlobalPoint>(j!, center, element.angle))
-      // Test intersection against the corners which are cubic bezier curves,
-      // keep only the valid intersection points and rotate them back to scene
-      // space
-      .concat(
-        corners
-          .flatMap((t) =>
-            curveIntersectLineSegment(t, lineSegment(rotatedA, rotatedB)),
-          )
-          .filter((i) => i != null)
-          .map((j) => pointRotateRads(j, center, element.angle)),
-      )
-      // Remove duplicates
-      .filter(
-        (p, idx, points) => points.findIndex((d) => pointsEqual(p, d)) === idx,
-      )
+  const intersections: GlobalPoint[] = [];
+
+  lineIntersections(
+    sides,
+    rotatedIntersector,
+    intersections,
+    center,
+    element.angle,
+    onlyFirst,
   );
+
+  if (onlyFirst && intersections.length > 0) {
+    return intersections;
+  }
+
+  curveIntersections(
+    corners,
+    rotatedIntersector,
+    intersections,
+    center,
+    element.angle,
+    onlyFirst,
+  );
+
+  return intersections;
 };
 
 /**
@@ -245,43 +431,45 @@ const intersectRectanguloidWithLineSegment = (
  */
 const intersectDiamondWithLineSegment = (
   element: ExcalidrawDiamondElement,
+  elementsMap: ElementsMap,
   l: LineSegment<GlobalPoint>,
   offset: number = 0,
+  onlyFirst = false,
 ): GlobalPoint[] => {
-  const center = elementCenterPoint(element);
+  const center = elementCenterPoint(element, elementsMap);
 
   // Rotate the point to the inverse direction to simulate the rotated diamond
   // points. It's all the same distance-wise.
   const rotatedA = pointRotateRads(l[0], center, -element.angle as Radians);
   const rotatedB = pointRotateRads(l[1], center, -element.angle as Radians);
+  const rotatedIntersector = lineSegment(rotatedA, rotatedB);
 
-  const [sides, curves] = deconstructDiamondElement(element, offset);
+  const [sides, corners] = deconstructDiamondElement(element, offset);
+  const intersections: GlobalPoint[] = [];
 
-  return (
-    sides
-      .map((s) =>
-        lineSegmentIntersectionPoints(
-          lineSegment<GlobalPoint>(rotatedA, rotatedB),
-          s,
-        ),
-      )
-      .filter((p): p is GlobalPoint => p != null)
-      // Rotate back intersection points
-      .map((p) => pointRotateRads<GlobalPoint>(p!, center, element.angle))
-      .concat(
-        curves
-          .flatMap((p) =>
-            curveIntersectLineSegment(p, lineSegment(rotatedA, rotatedB)),
-          )
-          .filter((p) => p != null)
-          // Rotate back intersection points
-          .map((p) => pointRotateRads(p, center, element.angle)),
-      )
-      // Remove duplicates
-      .filter(
-        (p, idx, points) => points.findIndex((d) => pointsEqual(p, d)) === idx,
-      )
+  lineIntersections(
+    sides,
+    rotatedIntersector,
+    intersections,
+    center,
+    element.angle,
+    onlyFirst,
   );
+
+  if (onlyFirst && intersections.length > 0) {
+    return intersections;
+  }
+
+  curveIntersections(
+    corners,
+    rotatedIntersector,
+    intersections,
+    center,
+    element.angle,
+    onlyFirst,
+  );
+
+  return intersections;
 };
 
 /**
@@ -293,16 +481,76 @@ const intersectDiamondWithLineSegment = (
  */
 const intersectEllipseWithLineSegment = (
   element: ExcalidrawEllipseElement,
+  elementsMap: ElementsMap,
   l: LineSegment<GlobalPoint>,
   offset: number = 0,
 ): GlobalPoint[] => {
-  const center = elementCenterPoint(element);
+  const center = elementCenterPoint(element, elementsMap);
 
   const rotatedA = pointRotateRads(l[0], center, -element.angle as Radians);
   const rotatedB = pointRotateRads(l[1], center, -element.angle as Radians);
 
-  return ellipseLineIntersectionPoints(
+  return ellipseSegmentInterceptPoints(
     ellipse(center, element.width / 2 + offset, element.height / 2 + offset),
-    line(rotatedA, rotatedB),
+    lineSegment(rotatedA, rotatedB),
   ).map((p) => pointRotateRads(p, center, element.angle));
 };
+
+/**
+ * Check if the given point is considered on the given shape's border
+ *
+ * @param point
+ * @param element
+ * @param tolerance
+ * @returns
+ */
+const isPointOnElementOutline = (
+  point: GlobalPoint,
+  element: ExcalidrawElement,
+  elementsMap: ElementsMap,
+  tolerance = 1,
+) => distanceToElement(element, elementsMap, point) <= tolerance;
+
+/**
+ * Check if the given point is considered inside the element's border
+ *
+ * @param point
+ * @param element
+ * @returns
+ */
+export const isPointInElement = (
+  point: GlobalPoint,
+  element: ExcalidrawElement,
+  elementsMap: ElementsMap,
+) => {
+  if (
+    (isLinearElement(element) || isFreeDrawElement(element)) &&
+    !isPathALoop(element.points)
+  ) {
+    // There isn't any "inside" for a non-looping path
+    return false;
+  }
+
+  const [x1, y1, x2, y2] = getElementBounds(element, elementsMap);
+
+  if (!isPointWithinBounds(pointFrom(x1, y1), point, pointFrom(x2, y2))) {
+    return false;
+  }
+
+  const center = pointFrom<GlobalPoint>((x1 + x2) / 2, (y1 + y2) / 2);
+  const otherPoint = pointFromVector(
+    vectorScale(
+      vectorNormalize(vectorFromPoint(point, center, 0.1)),
+      Math.max(element.width, element.height) * 2,
+    ),
+    center,
+  );
+  const intersector = lineSegment(point, otherPoint);
+  const intersections = intersectElementWithLineSegment(
+    element,
+    elementsMap,
+    intersector,
+  ).filter((p, pos, arr) => arr.findIndex((q) => pointsEqual(q, p)) === pos);
+
+  return intersections.length % 2 === 1;
+};

packages/element/src/cropElement.ts

@@ -14,9 +14,8 @@ import {
 } from "@excalidraw/math";
 import { type Point } from "points-on-curve";
 
-import { elementCenterPoint } from "@excalidraw/common";
-
 import {
+  elementCenterPoint,
   getElementAbsoluteCoords,
   getResizedElementAbsoluteCoords,
 } from "./bounds";
@@ -34,6 +33,7 @@ export const MINIMAL_CROP_SIZE = 10;
 
 export const cropElement = (
   element: ExcalidrawImageElement,
+  elementsMap: ElementsMap,
   transformHandle: TransformHandleType,
   naturalWidth: number,
   naturalHeight: number,
@@ -63,7 +63,7 @@ export const cropElement = (
 
   const rotatedPointer = pointRotateRads(
     pointFrom(pointerX, pointerY),
-    elementCenterPoint(element),
+    elementCenterPoint(element, elementsMap),
     -element.angle as Radians,
   );
 

packages/element/src/delta.ts

@@ -2,14 +2,16 @@ import {
   arrayToMap,
   arrayToObject,
   assertNever,
+  invariant,
   isDevEnv,
   isShallowEqual,
   isTestEnv,
+  randomInteger,
 } from "@excalidraw/common";
 
 import type {
   ExcalidrawElement,
-  ExcalidrawImageElement,
+  ExcalidrawFreeDrawElement,
   ExcalidrawLinearElement,
   ExcalidrawTextElement,
   NonDeleted,
@@ -18,7 +20,12 @@ import type {
   SceneElementsMap,
 } from "@excalidraw/element/types";
 
-import type { DTO, SubtypeOf, ValueOf } from "@excalidraw/common/utility-types";
+import type {
+  DTO,
+  Mutable,
+  SubtypeOf,
+  ValueOf,
+} from "@excalidraw/common/utility-types";
 
 import type {
   AppState,
@@ -51,6 +58,8 @@ import { orderByFractionalIndex, syncMovedIndices } from "./fractionalIndex";
 
 import { Scene } from "./Scene";
 
+import { StoreSnapshot } from "./store";
+
 import type { BindableProp, BindingProp } from "./binding";
 
 import type { ElementUpdate } from "./mutateElement";
@@ -73,13 +82,20 @@ export class Delta<T> {
   public static create<T>(
     deleted: Partial<T>,
     inserted: Partial<T>,
-    modifier?: (delta: Partial<T>) => Partial<T>,
-    modifierOptions?: "deleted" | "inserted",
+    modifier?: (
+      delta: Partial<T>,
+      partialType: "deleted" | "inserted",
+    ) => Partial<T>,
+    modifierOptions?: "deleted" | "inserted" | "both",
   ) {
     const modifiedDeleted =
-      modifier && modifierOptions !== "inserted" ? modifier(deleted) : deleted;
+      modifier && modifierOptions !== "inserted"
+        ? modifier(deleted, "deleted")
+        : deleted;
     const modifiedInserted =
-      modifier && modifierOptions !== "deleted" ? modifier(inserted) : inserted;
+      modifier && modifierOptions !== "deleted"
+        ? modifier(inserted, "inserted")
+        : inserted;
 
     return new Delta(modifiedDeleted, modifiedInserted);
   }
@@ -113,11 +129,7 @@ export class Delta<T> {
     // - we do this only on previously detected changed elements
     // - we do shallow compare only on the first level of properties (not going any deeper)
     // - # of properties is reasonably small
-    for (const key of this.distinctKeysIterator(
-      "full",
-      prevObject,
-      nextObject,
-    )) {
+    for (const key of this.getDifferences(prevObject, nextObject)) {
       deleted[key as keyof T] = prevObject[key];
       inserted[key as keyof T] = nextObject[key];
     }
@@ -256,12 +268,14 @@ export class Delta<T> {
           arrayToObject(deletedArray, groupBy),
           arrayToObject(insertedArray, groupBy),
         ),
+        (x) => x,
       );
       const insertedDifferences = arrayToObject(
         Delta.getRightDifferences(
           arrayToObject(deletedArray, groupBy),
           arrayToObject(insertedArray, groupBy),
         ),
+        (x) => x,
       );
 
       if (
@@ -320,6 +334,42 @@ export class Delta<T> {
     return !!anyDistinctKey;
   }
 
+  /**
+   * Compares if shared properties of object1 and object2 contain any different value (aka inner join).
+   */
+  public static isInnerDifferent<T extends {}>(
+    object1: T,
+    object2: T,
+    skipShallowCompare = false,
+  ): boolean {
+    const anyDistinctKey = !!this.distinctKeysIterator(
+      "inner",
+      object1,
+      object2,
+      skipShallowCompare,
+    ).next().value;
+
+    return !!anyDistinctKey;
+  }
+
+  /**
+   * Compares if any properties of object1 and object2 contain any different value (aka full join).
+   */
+  public static isDifferent<T extends {}>(
+    object1: T,
+    object2: T,
+    skipShallowCompare = false,
+  ): boolean {
+    const anyDistinctKey = !!this.distinctKeysIterator(
+      "full",
+      object1,
+      object2,
+      skipShallowCompare,
+    ).next().value;
+
+    return !!anyDistinctKey;
+  }
+
   /**
    * Returns sorted object1 keys that have distinct values.
    */
@@ -346,6 +396,32 @@ export class Delta<T> {
     ).sort();
   }
 
+  /**
+   * Returns sorted keys of shared object1 and object2 properties that have distinct values (aka inner join).
+   */
+  public static getInnerDifferences<T extends {}>(
+    object1: T,
+    object2: T,
+    skipShallowCompare = false,
+  ) {
+    return Array.from(
+      this.distinctKeysIterator("inner", object1, object2, skipShallowCompare),
+    ).sort();
+  }
+
+  /**
+   * Returns sorted keys that have distinct values between object1 and object2 (aka full join).
+   */
+  public static getDifferences<T extends {}>(
+    object1: T,
+    object2: T,
+    skipShallowCompare = false,
+  ) {
+    return Array.from(
+      this.distinctKeysIterator("full", object1, object2, skipShallowCompare),
+    ).sort();
+  }
+
   /**
    * Iterator comparing values of object properties based on the passed joining strategy.
    *
@@ -354,7 +430,7 @@ export class Delta<T> {
    * WARN: it's based on shallow compare performed only on the first level and doesn't go deeper than that.
    */
   private static *distinctKeysIterator<T extends {}>(
-    join: "left" | "right" | "full",
+    join: "left" | "right" | "inner" | "full",
     object1: T,
     object2: T,
     skipShallowCompare = false,
@@ -369,6 +445,8 @@ export class Delta<T> {
       keys = Object.keys(object1);
     } else if (join === "right") {
       keys = Object.keys(object2);
+    } else if (join === "inner") {
+      keys = Object.keys(object1).filter((key) => key in object2);
     } else if (join === "full") {
       keys = Array.from(
         new Set([...Object.keys(object1), ...Object.keys(object2)]),
@@ -382,17 +460,17 @@ export class Delta<T> {
     }
 
     for (const key of keys) {
-      const object1Value = object1[key as keyof T];
-      const object2Value = object2[key as keyof T];
+      const value1 = object1[key as keyof T];
+      const value2 = object2[key as keyof T];
 
-      if (object1Value !== object2Value) {
+      if (value1 !== value2) {
         if (
           !skipShallowCompare &&
-          typeof object1Value === "object" &&
-          typeof object2Value === "object" &&
-          object1Value !== null &&
-          object2Value !== null &&
-          isShallowEqual(object1Value, object2Value)
+          typeof value1 === "object" &&
+          typeof value2 === "object" &&
+          value1 !== null &&
+          value2 !== null &&
+          isShallowEqual(value1, value2)
         ) {
           continue;
         }
@@ -471,7 +549,7 @@ export class AppStateDelta implements DeltaContainer<AppState> {
         selectedElementIds: addedSelectedElementIds = {},
         selectedGroupIds: addedSelectedGroupIds = {},
         selectedLinearElementId,
-        editingLinearElementId,
+        selectedLinearElementIsEditing,
         ...directlyApplicablePartial
       } = this.delta.inserted;
 
@@ -487,39 +565,46 @@ export class AppStateDelta implements DeltaContainer<AppState> {
         removedSelectedGroupIds,
       );
 
-      const selectedLinearElement =
-        selectedLinearElementId && nextElements.has(selectedLinearElementId)
-          ? new LinearElementEditor(
-              nextElements.get(
-                selectedLinearElementId,
-              ) as NonDeleted<ExcalidrawLinearElement>,
-              nextElements,
-            )
-          : null;
+      let selectedLinearElement = appState.selectedLinearElement;
 
-      const editingLinearElement =
-        editingLinearElementId && nextElements.has(editingLinearElementId)
-          ? new LinearElementEditor(
-              nextElements.get(
-                editingLinearElementId,
-              ) as NonDeleted<ExcalidrawLinearElement>,
-              nextElements,
-            )
-          : null;
+      if (selectedLinearElementId === null) {
+        // Unselect linear element (visible change)
+        selectedLinearElement = null;
+      } else if (
+        selectedLinearElementId &&
+        nextElements.has(selectedLinearElementId)
+      ) {
+        selectedLinearElement = new LinearElementEditor(
+          nextElements.get(
+            selectedLinearElementId,
+          ) as NonDeleted<ExcalidrawLinearElement>,
+          nextElements,
+          selectedLinearElementIsEditing === true, // Can be unknown which is defaulted to false
+        );
+      }
+
+      if (
+        // Value being 'null' is equivaluent to unknown in this case because it only gets set
+        // to null when 'selectedLinearElementId' is set to null
+        selectedLinearElementIsEditing != null
+      ) {
+        invariant(
+          selectedLinearElement,
+          `selectedLinearElement is null when selectedLinearElementIsEditing is set to ${selectedLinearElementIsEditing}`,
+        );
+
+        selectedLinearElement = {
+          ...selectedLinearElement,
+          isEditing: selectedLinearElementIsEditing,
+        };
+      }
 
       const nextAppState = {
         ...appState,
         ...directlyApplicablePartial,
         selectedElementIds: mergedSelectedElementIds,
         selectedGroupIds: mergedSelectedGroupIds,
-        selectedLinearElement:
-          typeof selectedLinearElementId !== "undefined"
-            ? selectedLinearElement // element was either inserted or deleted
-            : appState.selectedLinearElement, // otherwise assign what we had before
-        editingLinearElement:
-          typeof editingLinearElementId !== "undefined"
-            ? editingLinearElement // element was either inserted or deleted
-            : appState.editingLinearElement, // otherwise assign what we had before
+        selectedLinearElement,
       };
 
       const constainsVisibleChanges = this.filterInvisibleChanges(
@@ -617,14 +702,20 @@ export class AppStateDelta implements DeltaContainer<AppState> {
             break;
           case "croppingElementId": {
             const croppingElementId = nextAppState[key];
-            const element =
-              croppingElementId && nextElements.get(croppingElementId);
 
-            if (element && !element.isDeleted) {
+            if (!croppingElementId) {
+              // previously there was a croppingElementId (assuming visible), now there is none
               visibleDifferenceFlag.value = true;
             } else {
-              nextAppState[key] = null;
+              const element = nextElements.get(croppingElementId);
+
+              if (element && !element.isDeleted) {
+                visibleDifferenceFlag.value = true;
+              } else {
+                nextAppState[key] = null;
+              }
             }
+
             break;
           }
           case "editingGroupId":
@@ -642,8 +733,7 @@ export class AppStateDelta implements DeltaContainer<AppState> {
             }
 
             break;
-          case "selectedLinearElementId":
-          case "editingLinearElementId":
+          case "selectedLinearElementId": {
             const appStateKey = AppStateDelta.convertToAppStateKey(key);
             const linearElement = nextAppState[appStateKey];
 
@@ -663,6 +753,19 @@ export class AppStateDelta implements DeltaContainer<AppState> {
             }
 
             break;
+          }
+          case "selectedLinearElementIsEditing": {
+            // Changes in editing state are always visible
+            const prevIsEditing =
+              prevAppState.selectedLinearElement?.isEditing ?? false;
+            const nextIsEditing =
+              nextAppState.selectedLinearElement?.isEditing ?? false;
+
+            if (prevIsEditing !== nextIsEditing) {
+              visibleDifferenceFlag.value = true;
+            }
+            break;
+          }
           case "lockedMultiSelections": {
             const prevLockedUnits = prevAppState[key] || {};
             const nextLockedUnits = nextAppState[key] || {};
@@ -696,16 +799,11 @@ export class AppStateDelta implements DeltaContainer<AppState> {
   }
 
   private static convertToAppStateKey(
-    key: keyof Pick<
-      ObservedElementsAppState,
-      "selectedLinearElementId" | "editingLinearElementId"
-    >,
-  ): keyof Pick<AppState, "selectedLinearElement" | "editingLinearElement"> {
+    key: keyof Pick<ObservedElementsAppState, "selectedLinearElementId">,
+  ): keyof Pick<AppState, "selectedLinearElement"> {
     switch (key) {
       case "selectedLinearElementId":
         return "selectedLinearElement";
-      case "editingLinearElementId":
-        return "editingLinearElement";
     }
   }
 
@@ -773,8 +871,8 @@ export class AppStateDelta implements DeltaContainer<AppState> {
       editingGroupId,
       selectedGroupIds,
       selectedElementIds,
-      editingLinearElementId,
       selectedLinearElementId,
+      selectedLinearElementIsEditing,
       croppingElementId,
       lockedMultiSelections,
       activeLockedId,
@@ -858,10 +956,17 @@ export class AppStateDelta implements DeltaContainer<AppState> {
   }
 }
 
-type ElementPartial<T extends ExcalidrawElement = ExcalidrawElement> = Omit<
-  ElementUpdate<Ordered<T>>,
-  "seed"
->;
+type ElementPartial<TElement extends ExcalidrawElement = ExcalidrawElement> =
+  Omit<Partial<Ordered<TElement>>, "id" | "updated" | "seed">;
+
+export type ApplyToOptions = {
+  excludedProperties: Set<keyof ElementPartial>;
+};
+
+type ApplyToFlags = {
+  containsVisibleDifference: boolean;
+  containsZindexDifference: boolean;
+};
 
 /**
  * Elements change is a low level primitive to capture a change between two sets of elements.
@@ -944,13 +1049,33 @@ export class ElementsDelta implements DeltaContainer<SceneElementsMap> {
     inserted,
   }: Delta<ElementPartial>) => !!deleted.isDeleted === !!inserted.isDeleted;
 
+  private static satisfiesCommmonInvariants = ({
+    deleted,
+    inserted,
+  }: Delta<ElementPartial>) =>
+    !!(
+      deleted.version &&
+      inserted.version &&
+      // versions are required integers
+      Number.isInteger(deleted.version) &&
+      Number.isInteger(inserted.version) &&
+      // versions should be positive, zero included
+      deleted.version >= 0 &&
+      inserted.version >= 0 &&
+      // versions should never be the same
+      deleted.version !== inserted.version
+    );
+
   private static validate(
     elementsDelta: ElementsDelta,
     type: "added" | "removed" | "updated",
-    satifies: (delta: Delta<ElementPartial>) => boolean,
+    satifiesSpecialInvariants: (delta: Delta<ElementPartial>) => boolean,
   ) {
     for (const [id, delta] of Object.entries(elementsDelta[type])) {
-      if (!satifies(delta)) {
+      if (
+        !this.satisfiesCommmonInvariants(delta) ||
+        !satifiesSpecialInvariants(delta)
+      ) {
         console.error(
           `Broken invariant for "${type}" delta, element "${id}", delta:`,
           delta,
@@ -986,7 +1111,12 @@ export class ElementsDelta implements DeltaContainer<SceneElementsMap> {
 
       if (!nextElement) {
         const deleted = { ...prevElement, isDeleted: false } as ElementPartial;
-        const inserted = { isDeleted: true } as ElementPartial;
+
+        const inserted = {
+          isDeleted: true,
+          version: prevElement.version + 1,
+          versionNonce: randomInteger(),
+        } as ElementPartial;
 
         const delta = Delta.create(
           deleted,
@@ -1002,7 +1132,12 @@ export class ElementsDelta implements DeltaContainer<SceneElementsMap> {
       const prevElement = prevElements.get(nextElement.id);
 
       if (!prevElement) {
-        const deleted = { isDeleted: true } as ElementPartial;
+        const deleted = {
+          isDeleted: true,
+          version: nextElement.version - 1,
+          versionNonce: randomInteger(),
+        } as ElementPartial;
+
         const inserted = {
           ...nextElement,
           isDeleted: false,
@@ -1087,16 +1222,40 @@ export class ElementsDelta implements DeltaContainer<SceneElementsMap> {
   /**
    * Update delta/s based on the existing elements.
    *
-   * @param elements current elements
+   * @param nextElements current elements
    * @param modifierOptions defines which of the delta (`deleted` or `inserted`) will be updated
    * @returns new instance with modified delta/s
    */
   public applyLatestChanges(
-    elements: SceneElementsMap,
-    modifierOptions: "deleted" | "inserted",
+    prevElements: SceneElementsMap,
+    nextElements: SceneElementsMap,
+    modifierOptions?: "deleted" | "inserted",
   ): ElementsDelta {
     const modifier =
-      (element: OrderedExcalidrawElement) => (partial: ElementPartial) => {
+      (
+        prevElement: OrderedExcalidrawElement | undefined,
+        nextElement: OrderedExcalidrawElement | undefined,
+      ) =>
+      (partial: ElementPartial, partialType: "deleted" | "inserted") => {
+        let element: OrderedExcalidrawElement | undefined;
+
+        switch (partialType) {
+          case "deleted":
+            element = prevElement;
+            break;
+          case "inserted":
+            element = nextElement;
+            break;
+        }
+
+        // the element wasn't found -> don't update the partial
+        if (!element) {
+          console.error(
+            `Element not found when trying to apply latest changes`,
+          );
+          return partial;
+        }
+
         const latestPartial: { [key: string]: unknown } = {};
 
         for (const key of Object.keys(partial) as Array<keyof typeof partial>) {
@@ -1120,19 +1279,25 @@ export class ElementsDelta implements DeltaContainer<SceneElementsMap> {
       const modifiedDeltas: Record<string, Delta<ElementPartial>> = {};
 
       for (const [id, delta] of Object.entries(deltas)) {
-        const existingElement = elements.get(id);
+        const prevElement = prevElements.get(id);
+        const nextElement = nextElements.get(id);
 
-        if (existingElement) {
-          const modifiedDelta = Delta.create(
+        let latestDelta: Delta<ElementPartial> | null = null;
+
+        if (prevElement || nextElement) {
+          latestDelta = Delta.create(
             delta.deleted,
             delta.inserted,
-            modifier(existingElement),
+            modifier(prevElement, nextElement),
             modifierOptions,
           );
-
-          modifiedDeltas[id] = modifiedDelta;
         } else {
-          modifiedDeltas[id] = delta;
+          latestDelta = delta;
+        }
+
+        // it might happen that after applying latest changes the delta itself does not contain any changes
+        if (Delta.isInnerDifferent(latestDelta.deleted, latestDelta.inserted)) {
+          modifiedDeltas[id] = latestDelta;
         }
       }
 
@@ -1150,12 +1315,15 @@ export class ElementsDelta implements DeltaContainer<SceneElementsMap> {
 
   public applyTo(
     elements: SceneElementsMap,
-    elementsSnapshot: Map<string, OrderedExcalidrawElement>,
+    snapshot: StoreSnapshot["elements"] = StoreSnapshot.empty().elements,
+    options: ApplyToOptions = {
+      excludedProperties: new Set(),
+    },
   ): [SceneElementsMap, boolean] {
     let nextElements = new Map(elements) as SceneElementsMap;
     let changedElements: Map<string, OrderedExcalidrawElement>;
 
-    const flags = {
+    const flags: ApplyToFlags = {
       containsVisibleDifference: false,
       containsZindexDifference: false,
     };
@@ -1164,13 +1332,14 @@ export class ElementsDelta implements DeltaContainer<SceneElementsMap> {
     try {
       const applyDeltas = ElementsDelta.createApplier(
         nextElements,
-        elementsSnapshot,
+        snapshot,
+        options,
         flags,
       );
 
-      const addedElements = applyDeltas("added", this.added);
-      const removedElements = applyDeltas("removed", this.removed);
-      const updatedElements = applyDeltas("updated", this.updated);
+      const addedElements = applyDeltas(this.added);
+      const removedElements = applyDeltas(this.removed);
+      const updatedElements = applyDeltas(this.updated);
 
       const affectedElements = this.resolveConflicts(elements, nextElements);
 
@@ -1229,18 +1398,12 @@ export class ElementsDelta implements DeltaContainer<SceneElementsMap> {
   private static createApplier =
     (
       nextElements: SceneElementsMap,
-      snapshot: Map<string, OrderedExcalidrawElement>,
-      flags: {
-        containsVisibleDifference: boolean;
-        containsZindexDifference: boolean;
-      },
+      snapshot: StoreSnapshot["elements"],
+      options: ApplyToOptions,
+      flags: ApplyToFlags,
     ) =>
-    (
-      type: "added" | "removed" | "updated",
-      deltas: Record<string, Delta<ElementPartial>>,
-    ) => {
+    (deltas: Record<string, Delta<ElementPartial>>) => {
       const getElement = ElementsDelta.createGetter(
-        type,
         nextElements,
         snapshot,
         flags,
@@ -1250,7 +1413,13 @@ export class ElementsDelta implements DeltaContainer<SceneElementsMap> {
         const element = getElement(id, delta.inserted);
 
         if (element) {
-          const newElement = ElementsDelta.applyDelta(element, delta, flags);
+          const newElement = ElementsDelta.applyDelta(
+            element,
+            delta,
+            options,
+            flags,
+          );
+
           nextElements.set(newElement.id, newElement);
           acc.set(newElement.id, newElement);
         }
@@ -1261,13 +1430,9 @@ export class ElementsDelta implements DeltaContainer<SceneElementsMap> {
 
   private static createGetter =
     (
-      type: "added" | "removed" | "updated",
       elements: SceneElementsMap,
-      snapshot: Map<string, OrderedExcalidrawElement>,
-      flags: {
-        containsVisibleDifference: boolean;
-        containsZindexDifference: boolean;
-      },
+      snapshot: StoreSnapshot["elements"],
+      flags: ApplyToFlags,
     ) =>
     (id: string, partial: ElementPartial) => {
       let element = elements.get(id);
@@ -1281,10 +1446,7 @@ export class ElementsDelta implements DeltaContainer<SceneElementsMap> {
           flags.containsZindexDifference = true;
 
           // as the element was force deleted, we need to check if adding it back results in a visible change
-          if (
-            partial.isDeleted === false ||
-            (partial.isDeleted !== true && element.isDeleted === false)
-          ) {
+          if (!partial.isDeleted || (partial.isDeleted && !element.isDeleted)) {
             flags.containsVisibleDifference = true;
           }
         } else {
@@ -1304,16 +1466,28 @@ export class ElementsDelta implements DeltaContainer<SceneElementsMap> {
   private static applyDelta(
     element: OrderedExcalidrawElement,
     delta: Delta<ElementPartial>,
-    flags: {
-      containsVisibleDifference: boolean;
-      containsZindexDifference: boolean;
-    } = {
-      // by default we don't care about about the flags
-      containsVisibleDifference: true,
-      containsZindexDifference: true,
-    },
+    options: ApplyToOptions,
+    flags: ApplyToFlags,
   ) {
-    const { boundElements, ...directlyApplicablePartial } = delta.inserted;
+    const directlyApplicablePartial: Mutable<ElementPartial> = {};
+
+    // some properties are not directly applicable, such as:
+    // - boundElements which contains only diff)
+    // - version & versionNonce, if we don't want to return to previous versions
+    for (const key of Object.keys(delta.inserted) as Array<
+      keyof typeof delta.inserted
+    >) {
+      if (key === "boundElements") {
+        continue;
+      }
+
+      if (options.excludedProperties.has(key)) {
+        continue;
+      }
+
+      const value = delta.inserted[key];
+      Reflect.set(directlyApplicablePartial, key, value);
+    }
 
     if (
       delta.deleted.boundElements?.length ||
@@ -1331,19 +1505,6 @@ export class ElementsDelta implements DeltaContainer<SceneElementsMap> {
       });
     }
 
-    // TODO: this looks wrong, shouldn't be here
-    if (element.type === "image") {
-      const _delta = delta as Delta<ElementPartial<ExcalidrawImageElement>>;
-      // we want to override `crop` only if modified so that we don't reset
-      // when undoing/redoing unrelated change
-      if (_delta.deleted.crop || _delta.inserted.crop) {
-        Object.assign(directlyApplicablePartial, {
-          // apply change verbatim
-          crop: _delta.inserted.crop ?? null,
-        });
-      }
-    }
-
     if (!flags.containsVisibleDifference) {
       // strip away fractional index, as even if it would be different, it doesn't have to result in visible change
       const { index, ...rest } = directlyApplicablePartial;
@@ -1650,6 +1811,29 @@ export class ElementsDelta implements DeltaContainer<SceneElementsMap> {
   ): [ElementPartial, ElementPartial] {
     try {
       Delta.diffArrays(deleted, inserted, "boundElements", (x) => x.id);
+
+      // don't diff the points as:
+      // - we can't ensure the multiplayer order consistency without fractional index on each point
+      // - we prefer to not merge the points, as it might just lead to unexpected / incosistent results
+      const deletedPoints =
+        (
+          deleted as ElementPartial<
+            ExcalidrawFreeDrawElement | ExcalidrawLinearElement
+          >
+        ).points ?? [];
+
+      const insertedPoints =
+        (
+          inserted as ElementPartial<
+            ExcalidrawFreeDrawElement | ExcalidrawLinearElement
+          >
+        ).points ?? [];
+
+      if (!Delta.isDifferent(deletedPoints, insertedPoints)) {
+        // delete the points from delta if there is no difference, otherwise leave them as they were captured due to consistency
+        Reflect.deleteProperty(deleted, "points");
+        Reflect.deleteProperty(inserted, "points");
+      }
     } catch (e) {
       // if postprocessing fails, it does not make sense to bubble up, but let's make sure we know about it
       console.error(`Couldn't postprocess elements delta.`);
@@ -1665,7 +1849,7 @@ export class ElementsDelta implements DeltaContainer<SceneElementsMap> {
   private static stripIrrelevantProps(
     partial: Partial<OrderedExcalidrawElement>,
   ): ElementPartial {
-    const { id, updated, version, versionNonce, ...strippedPartial } = partial;
+    const { id, updated, ...strippedPartial } = partial;
 
     return strippedPartial;
   }

packages/element/src/distance.ts

@@ -6,27 +6,33 @@ import {
 
 import { ellipse, ellipseDistanceFromPoint } from "@excalidraw/math/ellipse";
 
-import { elementCenterPoint } from "@excalidraw/common";
-
 import type { GlobalPoint, Radians } from "@excalidraw/math";
 
 import {
   deconstructDiamondElement,
+  deconstructLinearOrFreeDrawElement,
   deconstructRectanguloidElement,
 } from "./utils";
 
+import { elementCenterPoint } from "./bounds";
+
 import type {
-  ExcalidrawBindableElement,
+  ElementsMap,
   ExcalidrawDiamondElement,
+  ExcalidrawElement,
   ExcalidrawEllipseElement,
+  ExcalidrawFreeDrawElement,
+  ExcalidrawLinearElement,
   ExcalidrawRectanguloidElement,
 } from "./types";
 
-export const distanceToBindableElement = (
-  element: ExcalidrawBindableElement,
+export const distanceToElement = (
+  element: ExcalidrawElement,
+  elementsMap: ElementsMap,
   p: GlobalPoint,
 ): number => {
   switch (element.type) {
+    case "selection":
     case "rectangle":
     case "image":
     case "text":
@@ -34,11 +40,15 @@ export const distanceToBindableElement = (
     case "embeddable":
     case "frame":
     case "magicframe":
-      return distanceToRectanguloidElement(element, p);
+      return distanceToRectanguloidElement(element, elementsMap, p);
     case "diamond":
-      return distanceToDiamondElement(element, p);
+      return distanceToDiamondElement(element, elementsMap, p);
     case "ellipse":
-      return distanceToEllipseElement(element, p);
+      return distanceToEllipseElement(element, elementsMap, p);
+    case "line":
+    case "arrow":
+    case "freedraw":
+      return distanceToLinearOrFreeDraElement(element, p);
   }
 };
 
@@ -52,9 +62,10 @@ export const distanceToBindableElement = (
  */
 const distanceToRectanguloidElement = (
   element: ExcalidrawRectanguloidElement,
+  elementsMap: ElementsMap,
   p: GlobalPoint,
 ) => {
-  const center = elementCenterPoint(element);
+  const center = elementCenterPoint(element, elementsMap);
   // To emulate a rotated rectangle we rotate the point in the inverse angle
   // instead. It's all the same distance-wise.
   const rotatedPoint = pointRotateRads(p, center, -element.angle as Radians);
@@ -80,9 +91,10 @@ const distanceToRectanguloidElement = (
  */
 const distanceToDiamondElement = (
   element: ExcalidrawDiamondElement,
+  elementsMap: ElementsMap,
   p: GlobalPoint,
 ): number => {
-  const center = elementCenterPoint(element);
+  const center = elementCenterPoint(element, elementsMap);
 
   // Rotate the point to the inverse direction to simulate the rotated diamond
   // points. It's all the same distance-wise.
@@ -108,12 +120,24 @@ const distanceToDiamondElement = (
  */
 const distanceToEllipseElement = (
   element: ExcalidrawEllipseElement,
+  elementsMap: ElementsMap,
   p: GlobalPoint,
 ): number => {
-  const center = elementCenterPoint(element);
+  const center = elementCenterPoint(element, elementsMap);
   return ellipseDistanceFromPoint(
     // Instead of rotating the ellipse, rotate the point to the inverse angle
     pointRotateRads(p, center, -element.angle as Radians),
     ellipse(center, element.width / 2, element.height / 2),
   );
 };
+
+const distanceToLinearOrFreeDraElement = (
+  element: ExcalidrawLinearElement | ExcalidrawFreeDrawElement,
+  p: GlobalPoint,
+) => {
+  const [lines, curves] = deconstructLinearOrFreeDrawElement(element);
+  return Math.min(
+    ...lines.map((s) => distanceToLineSegment(p, s)),
+    ...curves.map((a) => curvePointDistance(a, p)),
+  );
+};

packages/element/src/distribute.ts

@@ -1,7 +1,9 @@
+import type { AppState } from "@excalidraw/excalidraw/types";
+
 import { getCommonBoundingBox } from "./bounds";
 import { newElementWith } from "./mutateElement";
 
-import { getMaximumGroups } from "./groups";
+import { getSelectedElementsByGroup } from "./groups";
 
 import type { ElementsMap, ExcalidrawElement } from "./types";
 
@@ -14,6 +16,7 @@ export const distributeElements = (
   selectedElements: ExcalidrawElement[],
   elementsMap: ElementsMap,
   distribution: Distribution,
+  appState: Readonly<AppState>,
 ): ExcalidrawElement[] => {
   const [start, mid, end, extent] =
     distribution.axis === "x"
@@ -21,7 +24,11 @@ export const distributeElements = (
       : (["minY", "midY", "maxY", "height"] as const);
 
   const bounds = getCommonBoundingBox(selectedElements);
-  const groups = getMaximumGroups(selectedElements, elementsMap)
+  const groups = getSelectedElementsByGroup(
+    selectedElements,
+    elementsMap,
+    appState,
+  )
     .map((group) => [group, getCommonBoundingBox(group)] as const)
     .sort((a, b) => a[1][mid] - b[1][mid]);
 

packages/element/src/elbowArrow.ts

@@ -20,6 +20,7 @@ import {
   tupleToCoors,
   getSizeFromPoints,
   isDevEnv,
+  arrayToMap,
 } from "@excalidraw/common";
 
 import type { AppState } from "@excalidraw/excalidraw/types";
@@ -29,10 +30,9 @@ import {
   FIXED_BINDING_DISTANCE,
   getHeadingForElbowArrowSnap,
   getGlobalFixedPointForBindableElement,
-  snapToMid,
   getHoveredElementForBinding,
 } from "./binding";
-import { distanceToBindableElement } from "./distance";
+import { distanceToElement } from "./distance";
 import {
   compareHeading,
   flipHeading,
@@ -52,7 +52,7 @@ import {
   type NonDeletedSceneElementsMap,
 } from "./types";
 
-import { aabbForElement, pointInsideBounds } from "./shapes";
+import { aabbForElement, pointInsideBounds } from "./bounds";
 
 import type { Bounds } from "./bounds";
 import type { Heading } from "./heading";
@@ -898,50 +898,6 @@ export const updateElbowArrowPoints = (
     return { points: updates.points ?? arrow.points };
   }
 
-  // NOTE (mtolmacs): This is a temporary check to ensure that the incoming elbow
-  // arrow size is valid. This check will be removed once the issue is identified
-  if (
-    arrow.x < -MAX_POS ||
-    arrow.x > MAX_POS ||
-    arrow.y < -MAX_POS ||
-    arrow.y > MAX_POS ||
-    arrow.x + (updates?.points?.[updates?.points?.length - 1]?.[0] ?? 0) <
-      -MAX_POS ||
-    arrow.x + (updates?.points?.[updates?.points?.length - 1]?.[0] ?? 0) >
-      MAX_POS ||
-    arrow.y + (updates?.points?.[updates?.points?.length - 1]?.[1] ?? 0) <
-      -MAX_POS ||
-    arrow.y + (updates?.points?.[updates?.points?.length - 1]?.[1] ?? 0) >
-      MAX_POS ||
-    arrow.x + (arrow?.points?.[arrow?.points?.length - 1]?.[0] ?? 0) <
-      -MAX_POS ||
-    arrow.x + (arrow?.points?.[arrow?.points?.length - 1]?.[0] ?? 0) >
-      MAX_POS ||
-    arrow.y + (arrow?.points?.[arrow?.points?.length - 1]?.[1] ?? 0) <
-      -MAX_POS ||
-    arrow.y + (arrow?.points?.[arrow?.points?.length - 1]?.[1] ?? 0) > MAX_POS
-  ) {
-    console.error(
-      "Elbow arrow (or update) is outside reasonable bounds (> 1e6)",
-      {
-        arrow,
-        updates,
-      },
-    );
-  }
-  // @ts-ignore See above note
-  arrow.x = clamp(arrow.x, -MAX_POS, MAX_POS);
-  // @ts-ignore See above note
-  arrow.y = clamp(arrow.y, -MAX_POS, MAX_POS);
-  if (updates.points) {
-    updates.points = updates.points.map(([x, y]) =>
-      pointFrom<LocalPoint>(
-        clamp(x, -MAX_POS, MAX_POS),
-        clamp(y, -MAX_POS, MAX_POS),
-      ),
-    );
-  }
-
   if (!import.meta.env.PROD) {
     invariant(
       !updates.points || updates.points.length >= 2,
@@ -1273,6 +1229,7 @@ const getElbowArrowData = (
     arrow.startBinding?.fixedPoint,
     origStartGlobalPoint,
     hoveredStartElement,
+    elementsMap,
     options?.isDragging,
   );
   const endGlobalPoint = getGlobalPoint(
@@ -1286,6 +1243,7 @@ const getElbowArrowData = (
     arrow.endBinding?.fixedPoint,
     origEndGlobalPoint,
     hoveredEndElement,
+    elementsMap,
     options?.isDragging,
   );
   const startHeading = getBindPointHeading(
@@ -1293,12 +1251,14 @@ const getElbowArrowData = (
     endGlobalPoint,
     hoveredStartElement,
     origStartGlobalPoint,
+    elementsMap,
   );
   const endHeading = getBindPointHeading(
     endGlobalPoint,
     startGlobalPoint,
     hoveredEndElement,
     origEndGlobalPoint,
+    elementsMap,
   );
   const startPointBounds = [
     startGlobalPoint[0] - 2,
@@ -1315,6 +1275,7 @@ const getElbowArrowData = (
   const startElementBounds = hoveredStartElement
     ? aabbForElement(
         hoveredStartElement,
+        elementsMap,
         offsetFromHeading(
           startHeading,
           arrow.startArrowhead
@@ -1327,6 +1288,7 @@ const getElbowArrowData = (
   const endElementBounds = hoveredEndElement
     ? aabbForElement(
         hoveredEndElement,
+        elementsMap,
         offsetFromHeading(
           endHeading,
           arrow.endArrowhead
@@ -1342,6 +1304,7 @@ const getElbowArrowData = (
       hoveredEndElement
         ? aabbForElement(
             hoveredEndElement,
+            elementsMap,
             offsetFromHeading(endHeading, BASE_PADDING, BASE_PADDING),
           )
         : endPointBounds,
@@ -1351,6 +1314,7 @@ const getElbowArrowData = (
       hoveredStartElement
         ? aabbForElement(
             hoveredStartElement,
+            elementsMap,
             offsetFromHeading(startHeading, BASE_PADDING, BASE_PADDING),
           )
         : startPointBounds,
@@ -1397,8 +1361,8 @@ const getElbowArrowData = (
           BASE_PADDING,
         ),
     boundsOverlap,
-    hoveredStartElement && aabbForElement(hoveredStartElement),
-    hoveredEndElement && aabbForElement(hoveredEndElement),
+    hoveredStartElement && aabbForElement(hoveredStartElement, elementsMap),
+    hoveredEndElement && aabbForElement(hoveredEndElement, elementsMap),
   );
   const startDonglePosition = getDonglePosition(
     dynamicAABBs[0],
@@ -2229,35 +2193,28 @@ const getGlobalPoint = (
   fixedPointRatio: [number, number] | undefined | null,
   initialPoint: GlobalPoint,
   element?: ExcalidrawBindableElement | null,
+  elementsMap?: ElementsMap,
   isDragging?: boolean,
 ): GlobalPoint => {
   if (isDragging) {
-    if (element) {
-      const snapPoint = bindPointToSnapToElementOutline(
+    if (element && elementsMap) {
+      return bindPointToSnapToElementOutline(
         arrow,
         element,
         startOrEnd,
+        elementsMap,
       );
-
-      return snapToMid(element, snapPoint);
     }
 
     return initialPoint;
   }
 
   if (element) {
-    const fixedGlobalPoint = getGlobalFixedPointForBindableElement(
+    return getGlobalFixedPointForBindableElement(
       fixedPointRatio || [0, 0],
       element,
+      elementsMap ?? arrayToMap([element]),
     );
-
-    // NOTE: Resize scales the binding position point too, so we need to update it
-    return Math.abs(
-      distanceToBindableElement(element, fixedGlobalPoint) -
-        FIXED_BINDING_DISTANCE,
-    ) > 0.01
-      ? bindPointToSnapToElementOutline(arrow, element, startOrEnd)
-      : fixedGlobalPoint;
   }
 
   return initialPoint;
@@ -2268,6 +2225,7 @@ const getBindPointHeading = (
   otherPoint: GlobalPoint,
   hoveredElement: ExcalidrawBindableElement | null | undefined,
   origPoint: GlobalPoint,
+  elementsMap: ElementsMap,
 ): Heading =>
   getHeadingForElbowArrowSnap(
     p,
@@ -2276,7 +2234,8 @@ const getBindPointHeading = (
     hoveredElement &&
       aabbForElement(
         hoveredElement,
-        Array(4).fill(distanceToBindableElement(hoveredElement, p)) as [
+        elementsMap,
+        Array(4).fill(distanceToElement(hoveredElement, elementsMap, p)) as [
           number,
           number,
           number,
@@ -2284,6 +2243,7 @@ const getBindPointHeading = (
         ],
       ),
     origPoint,
+    elementsMap,
   );
 
 const getHoveredElement = (

packages/element/src/embeddable.ts

@@ -23,7 +23,7 @@ type IframeDataWithSandbox = MarkRequired<IframeData, "sandbox">;
 const embeddedLinkCache = new Map<string, IframeDataWithSandbox>();
 
 const RE_YOUTUBE =
-  /^(?:http(?:s)?:\/\/)?(?:www\.)?youtu(?:be\.com|\.be)\/(embed\/|watch\?v=|shorts\/|playlist\?list=|embed\/videoseries\?list=)?([a-zA-Z0-9_-]+)(?:\?t=|&t=|\?start=|&start=)?([a-zA-Z0-9_-]+)?[^\s]*$/;
+  /^(?:http(?:s)?:\/\/)?(?:www\.)?youtu(?:be\.com|\.be)\/(embed\/|watch\?v=|shorts\/|playlist\?list=|embed\/videoseries\?list=)?([a-zA-Z0-9_-]+)/;
 
 const RE_VIMEO =
   /^(?:http(?:s)?:\/\/)?(?:(?:w){3}\.)?(?:player\.)?vimeo\.com\/(?:video\/)?([^?\s]+)(?:\?.*)?$/;
@@ -56,6 +56,35 @@ const RE_REDDIT =
 const RE_REDDIT_EMBED =
   /^<blockquote[\s\S]*?\shref=["'](https?:\/\/(?:www\.)?reddit\.com\/[^"']*)/i;
 
+const parseYouTubeTimestamp = (url: string): number => {
+  let timeParam: string | null | undefined;
+
+  try {
+    const urlObj = new URL(url.startsWith("http") ? url : `https://${url}`);
+    timeParam =
+      urlObj.searchParams.get("t") || urlObj.searchParams.get("start");
+  } catch (error) {
+    const timeMatch = url.match(/[?&#](?:t|start)=([^&#\s]+)/);
+    timeParam = timeMatch?.[1];
+  }
+
+  if (!timeParam) {
+    return 0;
+  }
+
+  if (/^\d+$/.test(timeParam)) {
+    return parseInt(timeParam, 10);
+  }
+
+  const timeMatch = timeParam.match(/^(?:(\d+)h)?(?:(\d+)m)?(?:(\d+)s)?$/);
+  if (!timeMatch) {
+    return 0;
+  }
+
+  const [, hours = "0", minutes = "0", seconds = "0"] = timeMatch;
+  return parseInt(hours) * 3600 + parseInt(minutes) * 60 + parseInt(seconds);
+};
+
 const ALLOWED_DOMAINS = new Set([
   "youtube.com",
   "youtu.be",
@@ -113,7 +142,8 @@ export const getEmbedLink = (
   let aspectRatio = { w: 560, h: 840 };
   const ytLink = link.match(RE_YOUTUBE);
   if (ytLink?.[2]) {
-    const time = ytLink[3] ? `&start=${ytLink[3]}` : ``;
+    const startTime = parseYouTubeTimestamp(originalLink);
+    const time = startTime > 0 ? `&start=${startTime}` : ``;
     const isPortrait = link.includes("shorts");
     type = "video";
     switch (ytLink[1]) {

packages/element/src/flowchart.ts

@@ -21,7 +21,7 @@ import {
 import { LinearElementEditor } from "./linearElementEditor";
 import { mutateElement } from "./mutateElement";
 import { newArrowElement, newElement } from "./newElement";
-import { aabbForElement } from "./shapes";
+import { aabbForElement } from "./bounds";
 import { elementsAreInFrameBounds, elementOverlapsWithFrame } from "./frame";
 import {
   isBindableElement,
@@ -95,10 +95,11 @@ const getNodeRelatives = (
           type === "predecessors" ? el.points[el.points.length - 1] : [0, 0]
         ) as Readonly<LocalPoint>;
 
-        const heading = headingForPointFromElement(node, aabbForElement(node), [
-          edgePoint[0] + el.x,
-          edgePoint[1] + el.y,
-        ] as Readonly<GlobalPoint>);
+        const heading = headingForPointFromElement(
+          node,
+          aabbForElement(node, elementsMap),
+          [edgePoint[0] + el.x, edgePoint[1] + el.y] as Readonly<GlobalPoint>,
+        );
 
         acc.push({
           relative,

packages/element/src/fractionalIndex.ts

@@ -2,7 +2,7 @@ import { generateNKeysBetween } from "fractional-indexing";
 
 import { arrayToMap } from "@excalidraw/common";
 
-import { mutateElement } from "./mutateElement";
+import { mutateElement, newElementWith } from "./mutateElement";
 import { getBoundTextElement } from "./textElement";
 import { hasBoundTextElement } from "./typeChecks";
 
@@ -11,6 +11,7 @@ import type {
   ExcalidrawElement,
   FractionalIndex,
   OrderedExcalidrawElement,
+  SceneElementsMap,
 } from "./types";
 
 export class InvalidFractionalIndexError extends Error {
@@ -161,9 +162,15 @@ export const syncMovedIndices = (
 
     // try generatating indices, throws on invalid movedElements
     const elementsUpdates = generateIndices(elements, indicesGroups);
-    const elementsCandidates = elements.map((x) =>
-      elementsUpdates.has(x) ? { ...x, ...elementsUpdates.get(x) } : x,
-    );
+    const elementsCandidates = elements.map((x) => {
+      const elementUpdates = elementsUpdates.get(x);
+
+      if (elementUpdates) {
+        return { ...x, index: elementUpdates.index };
+      }
+
+      return x;
+    });
 
     // ensure next indices are valid before mutation, throws on invalid ones
     validateFractionalIndices(
@@ -177,8 +184,8 @@ export const syncMovedIndices = (
     );
 
     // split mutation so we don't end up in an incosistent state
-    for (const [element, update] of elementsUpdates) {
-      mutateElement(element, elementsMap, update);
+    for (const [element, { index }] of elementsUpdates) {
+      mutateElement(element, elementsMap, { index });
     }
   } catch (e) {
     // fallback to default sync
@@ -189,7 +196,7 @@ export const syncMovedIndices = (
 };
 
 /**
- * Synchronizes all invalid fractional indices with the array order by mutating passed elements.
+ * Synchronizes all invalid fractional indices within the array order by mutating elements in the passed array.
  *
  * WARN: in edge cases it could modify the elements which were not moved, as it's impossible to guess the actually moved elements from the elements array itself.
  */
@@ -200,13 +207,32 @@ export const syncInvalidIndices = (
   const indicesGroups = getInvalidIndicesGroups(elements);
   const elementsUpdates = generateIndices(elements, indicesGroups);
 
-  for (const [element, update] of elementsUpdates) {
-    mutateElement(element, elementsMap, update);
+  for (const [element, { index }] of elementsUpdates) {
+    mutateElement(element, elementsMap, { index });
   }
 
   return elements as OrderedExcalidrawElement[];
 };
 
+/**
+ * Synchronizes all invalid fractional indices within the array order by creating new instances of elements with corrected indices.
+ *
+ * WARN: in edge cases it could modify the elements which were not moved, as it's impossible to guess the actually moved elements from the elements array itself.
+ */
+export const syncInvalidIndicesImmutable = (
+  elements: readonly ExcalidrawElement[],
+): SceneElementsMap | undefined => {
+  const syncedElements = arrayToMap(elements);
+  const indicesGroups = getInvalidIndicesGroups(elements);
+  const elementsUpdates = generateIndices(elements, indicesGroups);
+
+  for (const [element, { index }] of elementsUpdates) {
+    syncedElements.set(element.id, newElementWith(element, { index }));
+  }
+
+  return syncedElements as SceneElementsMap;
+};
+
 /**
  * Get contiguous groups of indices of passed moved elements.
  *

packages/element/src/groups.ts

@@ -7,6 +7,8 @@ import type { Mutable } from "@excalidraw/common/utility-types";
 
 import { getBoundTextElement } from "./textElement";
 
+import { isBoundToContainer } from "./typeChecks";
+
 import { makeNextSelectedElementIds, getSelectedElements } from "./selection";
 
 import type {
@@ -402,3 +404,78 @@ export const getNewGroupIdsForDuplication = (
 
   return copy;
 };
+
+// given a list of selected elements, return the element grouped by their immediate group selected state
+// in the case if only one group is selected and all elements selected are within the group, it will respect group hierarchy in accordance to their nested grouping order
+export const getSelectedElementsByGroup = (
+  selectedElements: ExcalidrawElement[],
+  elementsMap: ElementsMap,
+  appState: Readonly<AppState>,
+): ExcalidrawElement[][] => {
+  const selectedGroupIds = getSelectedGroupIds(appState);
+  const unboundElements = selectedElements.filter(
+    (element) => !isBoundToContainer(element),
+  );
+  const groups: Map<string, ExcalidrawElement[]> = new Map();
+  const elements: Map<string, ExcalidrawElement[]> = new Map();
+
+  // helper function to add an element to the elements map
+  const addToElementsMap = (element: ExcalidrawElement) => {
+    // elements
+    const currentElementMembers = elements.get(element.id) || [];
+    const boundTextElement = getBoundTextElement(element, elementsMap);
+
+    if (boundTextElement) {
+      currentElementMembers.push(boundTextElement);
+    }
+    elements.set(element.id, [...currentElementMembers, element]);
+  };
+
+  // helper function to add an element to the groups map
+  const addToGroupsMap = (element: ExcalidrawElement, groupId: string) => {
+    // groups
+    const currentGroupMembers = groups.get(groupId) || [];
+    const boundTextElement = getBoundTextElement(element, elementsMap);
+
+    if (boundTextElement) {
+      currentGroupMembers.push(boundTextElement);
+    }
+    groups.set(groupId, [...currentGroupMembers, element]);
+  };
+
+  // helper function to handle the case where a single group is selected
+  // and all elements selected are within the group, it will respect group hierarchy in accordance to
+  // their nested grouping order
+  const handleSingleSelectedGroupCase = (
+    element: ExcalidrawElement,
+    selectedGroupId: GroupId,
+  ) => {
+    const indexOfSelectedGroupId = element.groupIds.indexOf(selectedGroupId, 0);
+    const nestedGroupCount = element.groupIds.slice(
+      0,
+      indexOfSelectedGroupId,
+    ).length;
+    return nestedGroupCount > 0
+      ? addToGroupsMap(element, element.groupIds[indexOfSelectedGroupId - 1])
+      : addToElementsMap(element);
+  };
+
+  const isAllInSameGroup = selectedElements.every((element) =>
+    isSelectedViaGroup(appState, element),
+  );
+
+  unboundElements.forEach((element) => {
+    const selectedGroupId = getSelectedGroupIdForElement(
+      element,
+      appState.selectedGroupIds,
+    );
+    if (!selectedGroupId) {
+      addToElementsMap(element);
+    } else if (selectedGroupIds.length === 1 && isAllInSameGroup) {
+      handleSingleSelectedGroupCase(element, selectedGroupId);
+    } else {
+      addToGroupsMap(element, selectedGroupId);
+    }
+  });
+  return Array.from(groups.values()).concat(Array.from(elements.values()));
+};

packages/element/src/index.ts

@@ -102,9 +102,7 @@ export * from "./resizeElements";
 export * from "./resizeTest";
 export * from "./Scene";
 export * from "./selection";
-export * from "./Shape";
-export * from "./ShapeCache";
-export * from "./shapes";
+export * from "./shape";
 export * from "./showSelectedShapeActions";
 export * from "./sizeHelpers";
 export * from "./sortElements";

packages/element/src/linearElementEditor.ts

@@ -7,6 +7,8 @@ import {
   type LocalPoint,
   pointDistance,
   vectorFromPoint,
+  curveLength,
+  curvePointAtLength,
 } from "@excalidraw/math";
 
 import { getCurvePathOps } from "@excalidraw/utils/shape";
@@ -18,9 +20,14 @@ import {
   getGridPoint,
   invariant,
   tupleToCoors,
+  viewportCoordsToSceneCoords,
 } from "@excalidraw/common";
 
-import type { Store } from "@excalidraw/element";
+import {
+  deconstructLinearOrFreeDrawElement,
+  isPathALoop,
+  type Store,
+} from "@excalidraw/element";
 
 import type { Radians } from "@excalidraw/math";
 
@@ -39,6 +46,7 @@ import {
   bindOrUnbindLinearElement,
   getHoveredElementForBinding,
   isBindingEnabled,
+  maybeSuggestBindingsForLinearElementAtCoords,
 } from "./binding";
 import {
   getElementAbsoluteCoords,
@@ -55,18 +63,12 @@ import {
   isFixedPointBinding,
 } from "./typeChecks";
 
-import { ShapeCache } from "./ShapeCache";
-
-import {
-  isPathALoop,
-  getBezierCurveLength,
-  getControlPointsForBezierCurve,
-  mapIntervalToBezierT,
-  getBezierXY,
-} from "./shapes";
+import { ShapeCache, toggleLinePolygonState } from "./shape";
 
 import { getLockedLinearCursorAlignSize } from "./sizeHelpers";
 
+import { isLineElement } from "./typeChecks";
+
 import type { Scene } from "./Scene";
 
 import type { Bounds } from "./bounds";
@@ -85,6 +87,35 @@ import type {
   PointsPositionUpdates,
 } from "./types";
 
+/**
+ * Normalizes line points so that the start point is at [0,0]. This is
+ * expected in various parts of the codebase.
+ *
+ * Also returns the offsets - [0,0] if no normalization needed.
+ *
+ * @private
+ */
+const getNormalizedPoints = ({
+  points,
+}: {
+  points: ExcalidrawLinearElement["points"];
+}): {
+  points: LocalPoint[];
+  offsetX: number;
+  offsetY: number;
+} => {
+  const offsetX = points[0][0];
+  const offsetY = points[0][1];
+
+  return {
+    points: points.map((p) => {
+      return pointFrom(p[0] - offsetX, p[1] - offsetY);
+    }),
+    offsetX,
+    offsetY,
+  };
+};
+
 export class LinearElementEditor {
   public readonly elementId: ExcalidrawElement["id"] & {
     _brand: "excalidrawLinearElementId";
@@ -117,17 +148,24 @@ export class LinearElementEditor {
   public readonly hoverPointIndex: number;
   public readonly segmentMidPointHoveredCoords: GlobalPoint | null;
   public readonly elbowed: boolean;
+  public readonly customLineAngle: number | null;
+  public readonly isEditing: boolean;
 
   constructor(
     element: NonDeleted<ExcalidrawLinearElement>,
     elementsMap: ElementsMap,
+    isEditing: boolean = false,
   ) {
     this.elementId = element.id as string & {
       _brand: "excalidrawLinearElementId";
     };
     if (!pointsEqual(element.points[0], pointFrom(0, 0))) {
       console.error("Linear element is not normalized", Error().stack);
-      LinearElementEditor.normalizePoints(element, elementsMap);
+      mutateElement(
+        element,
+        elementsMap,
+        LinearElementEditor.getNormalizeElementPointsAndCoords(element),
+      );
     }
     this.selectedPointsIndices = null;
     this.lastUncommittedPoint = null;
@@ -150,6 +188,8 @@ export class LinearElementEditor {
     this.hoverPointIndex = -1;
     this.segmentMidPointHoveredCoords = null;
     this.elbowed = isElbowArrow(element) && element.elbowed;
+    this.customLineAngle = null;
+    this.isEditing = isEditing;
   }
 
   // ---------------------------------------------------------------------------
@@ -157,6 +197,7 @@ export class LinearElementEditor {
   // ---------------------------------------------------------------------------
 
   static POINT_HANDLE_SIZE = 10;
+
   /**
    * @param id the `elementId` from the instance of this class (so that we can
    *  statically guarantee this method returns an ExcalidrawLinearElement)
@@ -178,11 +219,14 @@ export class LinearElementEditor {
     setState: React.Component<any, AppState>["setState"],
     elementsMap: NonDeletedSceneElementsMap,
   ) {
-    if (!appState.editingLinearElement || !appState.selectionElement) {
+    if (
+      !appState.selectedLinearElement?.isEditing ||
+      !appState.selectionElement
+    ) {
       return false;
     }
-    const { editingLinearElement } = appState;
-    const { selectedPointsIndices, elementId } = editingLinearElement;
+    const { selectedLinearElement } = appState;
+    const { selectedPointsIndices, elementId } = selectedLinearElement;
 
     const element = LinearElementEditor.getElement(elementId, elementsMap);
     if (!element) {
@@ -223,8 +267,8 @@ export class LinearElementEditor {
       });
 
     setState({
-      editingLinearElement: {
-        ...editingLinearElement,
+      selectedLinearElement: {
+        ...selectedLinearElement,
         selectedPointsIndices: nextSelectedPoints.length
           ? nextSelectedPoints
           : null,
@@ -240,19 +284,15 @@ export class LinearElementEditor {
     app: AppClassProperties,
     scenePointerX: number,
     scenePointerY: number,
-    maybeSuggestBinding: (
-      element: NonDeleted<ExcalidrawLinearElement>,
-      pointSceneCoords: { x: number; y: number }[],
-    ) => void,
     linearElementEditor: LinearElementEditor,
-    scene: Scene,
-  ): LinearElementEditor | null {
+  ): Pick<AppState, keyof AppState> | null {
     if (!linearElementEditor) {
       return null;
     }
     const { elementId } = linearElementEditor;
-    const elementsMap = scene.getNonDeletedElementsMap();
+    const elementsMap = app.scene.getNonDeletedElementsMap();
     const element = LinearElementEditor.getElement(elementId, elementsMap);
+    let customLineAngle = linearElementEditor.customLineAngle;
     if (!element) {
       return null;
     }
@@ -293,6 +333,12 @@ export class LinearElementEditor {
         const selectedIndex = selectedPointsIndices[0];
         const referencePoint =
           element.points[selectedIndex === 0 ? 1 : selectedIndex - 1];
+        customLineAngle =
+          linearElementEditor.customLineAngle ??
+          Math.atan2(
+            element.points[selectedIndex][1] - referencePoint[1],
+            element.points[selectedIndex][0] - referencePoint[0],
+          );
 
         const [width, height] = LinearElementEditor._getShiftLockedDelta(
           element,
@@ -300,11 +346,12 @@ export class LinearElementEditor {
           referencePoint,
           pointFrom(scenePointerX, scenePointerY),
           event[KEYS.CTRL_OR_CMD] ? null : app.getEffectiveGridSize(),
+          customLineAngle,
         );
 
         LinearElementEditor.movePoints(
           element,
-          scene,
+          app.scene,
           new Map([
             [
               selectedIndex,
@@ -332,7 +379,7 @@ export class LinearElementEditor {
 
         LinearElementEditor.movePoints(
           element,
-          scene,
+          app.scene,
           new Map(
             selectedPointsIndices.map((pointIndex) => {
               const newPointPosition: LocalPoint =
@@ -364,46 +411,59 @@ export class LinearElementEditor {
 
       const boundTextElement = getBoundTextElement(element, elementsMap);
       if (boundTextElement) {
-        handleBindTextResize(element, scene, false);
+        handleBindTextResize(element, app.scene, false);
       }
 
       // suggest bindings for first and last point if selected
+      let suggestedBindings: ExcalidrawBindableElement[] = [];
       if (isBindingElement(element, false)) {
+        const firstSelectedIndex = selectedPointsIndices[0] === 0;
+        const lastSelectedIndex =
+          selectedPointsIndices[selectedPointsIndices.length - 1] ===
+          element.points.length - 1;
         const coords: { x: number; y: number }[] = [];
 
-        const firstSelectedIndex = selectedPointsIndices[0];
-        if (firstSelectedIndex === 0) {
-          coords.push(
-            tupleToCoors(
-              LinearElementEditor.getPointGlobalCoordinates(
-                element,
-                element.points[0],
-                elementsMap,
+        if (!firstSelectedIndex !== !lastSelectedIndex) {
+          coords.push({ x: scenePointerX, y: scenePointerY });
+        } else {
+          if (firstSelectedIndex) {
+            coords.push(
+              tupleToCoors(
+                LinearElementEditor.getPointGlobalCoordinates(
+                  element,
+                  element.points[0],
+                  elementsMap,
+                ),
               ),
-            ),
-          );
-        }
+            );
+          }
 
-        const lastSelectedIndex =
-          selectedPointsIndices[selectedPointsIndices.length - 1];
-        if (lastSelectedIndex === element.points.length - 1) {
-          coords.push(
-            tupleToCoors(
-              LinearElementEditor.getPointGlobalCoordinates(
-                element,
-                element.points[lastSelectedIndex],
-                elementsMap,
+          if (lastSelectedIndex) {
+            coords.push(
+              tupleToCoors(
+                LinearElementEditor.getPointGlobalCoordinates(
+                  element,
+                  element.points[
+                    selectedPointsIndices[selectedPointsIndices.length - 1]
+                  ],
+                  elementsMap,
+                ),
               ),
-            ),
-          );
+            );
+          }
         }
 
         if (coords.length) {
-          maybeSuggestBinding(element, coords);
+          suggestedBindings = maybeSuggestBindingsForLinearElementAtCoords(
+            element,
+            coords,
+            app.scene,
+            app.state.zoom,
+          );
         }
       }
 
-      return {
+      const newLinearElementEditor = {
         ...linearElementEditor,
         selectedPointsIndices,
         segmentMidPointHoveredCoords:
@@ -421,6 +481,13 @@ export class LinearElementEditor {
             ? lastClickedPoint
             : -1,
         isDragging: true,
+        customLineAngle,
+      };
+
+      return {
+        ...app.state,
+        selectedLinearElement: newLinearElementEditor,
+        suggestedBindings,
       };
     }
 
@@ -435,6 +502,7 @@ export class LinearElementEditor {
   ): LinearElementEditor {
     const elementsMap = scene.getNonDeletedElementsMap();
     const elements = scene.getNonDeletedElements();
+    const pointerCoords = viewportCoordsToSceneCoords(event, appState);
 
     const { elementId, selectedPointsIndices, isDragging, pointerDownState } =
       editingLinearElement;
@@ -459,6 +527,18 @@ export class LinearElementEditor {
           selectedPoint === element.points.length - 1
         ) {
           if (isPathALoop(element.points, appState.zoom.value)) {
+            if (isLineElement(element)) {
+              scene.mutateElement(
+                element,
+                {
+                  ...toggleLinePolygonState(element, true),
+                },
+                {
+                  informMutation: false,
+                  isDragging: false,
+                },
+              );
+            }
             LinearElementEditor.movePoints(
               element,
               scene,
@@ -478,13 +558,15 @@ export class LinearElementEditor {
 
           const bindingElement = isBindingEnabled(appState)
             ? getHoveredElementForBinding(
-                tupleToCoors(
-                  LinearElementEditor.getPointAtIndexGlobalCoordinates(
-                    element,
-                    selectedPoint!,
-                    elementsMap,
-                  ),
-                ),
+                (selectedPointsIndices?.length ?? 0) > 1
+                  ? tupleToCoors(
+                      LinearElementEditor.getPointAtIndexGlobalCoordinates(
+                        element,
+                        selectedPoint!,
+                        elementsMap,
+                      ),
+                    )
+                  : pointerCoords,
                 elements,
                 elementsMap,
                 appState.zoom,
@@ -503,6 +585,8 @@ export class LinearElementEditor {
     return {
       ...editingLinearElement,
       ...bindings,
+      segmentMidPointHoveredCoords: null,
+      hoverPointIndex: -1,
       // if clicking without previously dragging a point(s), and not holding
       // shift, deselect all points except the one clicked. If holding shift,
       // toggle the point.
@@ -524,6 +608,7 @@ export class LinearElementEditor {
           : selectedPointsIndices,
       isDragging: false,
       pointerOffset: { x: 0, y: 0 },
+      customLineAngle: null,
     };
   }
 
@@ -537,7 +622,7 @@ export class LinearElementEditor {
     // Since its not needed outside editor unless 2 pointer lines or bound text
     if (
       !isElbowArrow(element) &&
-      !appState.editingLinearElement &&
+      !appState.selectedLinearElement?.isEditing &&
       element.points.length > 2 &&
       !boundText
     ) {
@@ -567,10 +652,7 @@ export class LinearElementEditor {
       }
       const segmentMidPoint = LinearElementEditor.getSegmentMidPoint(
         element,
-        points[index],
-        points[index + 1],
         index + 1,
-        elementsMap,
       );
       midpoints.push(segmentMidPoint);
       index++;
@@ -606,7 +688,7 @@ export class LinearElementEditor {
     );
     if (
       points.length >= 3 &&
-      !appState.editingLinearElement &&
+      !appState.selectedLinearElement?.isEditing &&
       !isElbowArrow(element)
     ) {
       return null;
@@ -672,7 +754,18 @@ export class LinearElementEditor {
 
     let distance = pointDistance(startPoint, endPoint);
     if (element.points.length > 2 && element.roundness) {
-      distance = getBezierCurveLength(element, endPoint);
+      const [lines, curves] = deconstructLinearOrFreeDrawElement(element);
+
+      invariant(
+        lines.length === 0 && curves.length > 0,
+        "Only linears built out of curves are supported",
+      );
+      invariant(
+        lines.length + curves.length >= index,
+        "Invalid segment index while calculating mid point",
+      );
+
+      distance = curveLength<GlobalPoint>(curves[index]);
     }
 
     return distance * zoom.value < LinearElementEditor.POINT_HANDLE_SIZE * 4;
@@ -680,39 +773,42 @@ export class LinearElementEditor {
 
   static getSegmentMidPoint(
     element: NonDeleted<ExcalidrawLinearElement>,
-    startPoint: GlobalPoint,
-    endPoint: GlobalPoint,
-    endPointIndex: number,
-    elementsMap: ElementsMap,
+    index: number,
   ): GlobalPoint {
-    let segmentMidPoint = pointCenter(startPoint, endPoint);
-    if (element.points.length > 2 && element.roundness) {
-      const controlPoints = getControlPointsForBezierCurve(
-        element,
-        element.points[endPointIndex],
+    if (isElbowArrow(element)) {
+      invariant(
+        element.points.length >= index,
+        "Invalid segment index while calculating elbow arrow mid point",
       );
-      if (controlPoints) {
-        const t = mapIntervalToBezierT(
-          element,
-          element.points[endPointIndex],
-          0.5,
-        );
 
-        segmentMidPoint = LinearElementEditor.getPointGlobalCoordinates(
-          element,
-          getBezierXY(
-            controlPoints[0],
-            controlPoints[1],
-            controlPoints[2],
-            controlPoints[3],
-            t,
-          ),
-          elementsMap,
-        );
-      }
+      const p = pointCenter(element.points[index - 1], element.points[index]);
+
+      return pointFrom<GlobalPoint>(element.x + p[0], element.y + p[1]);
     }
 
-    return segmentMidPoint;
+    const [lines, curves] = deconstructLinearOrFreeDrawElement(element);
+
+    invariant(
+      (lines.length === 0 && curves.length > 0) ||
+        (lines.length > 0 && curves.length === 0),
+      "Only linears built out of either segments or curves are supported",
+    );
+    invariant(
+      lines.length + curves.length >= index,
+      "Invalid segment index while calculating mid point",
+    );
+
+    if (lines.length) {
+      const segment = lines[index - 1];
+      return pointCenter(segment[0], segment[1]);
+    }
+
+    if (curves.length) {
+      const segment = curves[index - 1];
+      return curvePointAtLength(segment, 0.5);
+    }
+
+    invariant(false, "Invalid segment type while calculating mid point");
   }
 
   static getSegmentMidPointIndex(
@@ -789,7 +885,7 @@ export class LinearElementEditor {
         segmentMidpoint,
         elementsMap,
       );
-    } else if (event.altKey && appState.editingLinearElement) {
+    } else if (event.altKey && appState.selectedLinearElement?.isEditing) {
       if (linearElementEditor.lastUncommittedPoint == null) {
         scene.mutateElement(element, {
           points: [
@@ -931,14 +1027,14 @@ export class LinearElementEditor {
     app: AppClassProperties,
   ): LinearElementEditor | null {
     const appState = app.state;
-    if (!appState.editingLinearElement) {
+    if (!appState.selectedLinearElement?.isEditing) {
       return null;
     }
-    const { elementId, lastUncommittedPoint } = appState.editingLinearElement;
+    const { elementId, lastUncommittedPoint } = appState.selectedLinearElement;
     const elementsMap = app.scene.getNonDeletedElementsMap();
     const element = LinearElementEditor.getElement(elementId, elementsMap);
     if (!element) {
-      return appState.editingLinearElement;
+      return appState.selectedLinearElement;
     }
 
     const { points } = element;
@@ -946,14 +1042,14 @@ export class LinearElementEditor {
 
     if (!event.altKey) {
       if (lastPoint === lastUncommittedPoint) {
-        LinearElementEditor.deletePoints(element, app.scene, [
-          points.length - 1,
-        ]);
+        LinearElementEditor.deletePoints(element, app, [points.length - 1]);
       }
-      return {
-        ...appState.editingLinearElement,
-        lastUncommittedPoint: null,
-      };
+      return appState.selectedLinearElement?.lastUncommittedPoint
+        ? {
+            ...appState.selectedLinearElement,
+            lastUncommittedPoint: null,
+          }
+        : appState.selectedLinearElement;
     }
 
     let newPoint: LocalPoint;
@@ -977,8 +1073,8 @@ export class LinearElementEditor {
       newPoint = LinearElementEditor.createPointAt(
         element,
         elementsMap,
-        scenePointerX - appState.editingLinearElement.pointerOffset.x,
-        scenePointerY - appState.editingLinearElement.pointerOffset.y,
+        scenePointerX - appState.selectedLinearElement.pointerOffset.x,
+        scenePointerY - appState.selectedLinearElement.pointerOffset.y,
         event[KEYS.CTRL_OR_CMD] || isElbowArrow(element)
           ? null
           : app.getEffectiveGridSize(),
@@ -999,10 +1095,10 @@ export class LinearElementEditor {
         ]),
       );
     } else {
-      LinearElementEditor.addPoints(element, app.scene, [{ point: newPoint }]);
+      LinearElementEditor.addPoints(element, app.scene, [newPoint]);
     }
     return {
-      ...appState.editingLinearElement,
+      ...appState.selectedLinearElement,
       lastUncommittedPoint: element.points[element.points.length - 1],
     };
   }
@@ -1142,48 +1238,31 @@ export class LinearElementEditor {
 
   /**
    * Normalizes line points so that the start point is at [0,0]. This is
-   * expected in various parts of the codebase. Also returns new x/y to account
-   * for the potential normalization.
+   * expected in various parts of the codebase.
+   *
+   * Also returns normalized x and y coords to account for the normalization
+   * of the points.
    */
-  static getNormalizedPoints(element: ExcalidrawLinearElement): {
-    points: LocalPoint[];
-    x: number;
-    y: number;
-  } {
-    const { points } = element;
-
-    const offsetX = points[0][0];
-    const offsetY = points[0][1];
+  static getNormalizeElementPointsAndCoords(element: ExcalidrawLinearElement) {
+    const { points, offsetX, offsetY } = getNormalizedPoints(element);
 
     return {
-      points: points.map((p) => {
-        return pointFrom(p[0] - offsetX, p[1] - offsetY);
-      }),
+      points,
       x: element.x + offsetX,
       y: element.y + offsetY,
     };
   }
+
   // element-mutating methods
   // ---------------------------------------------------------------------------
-  static normalizePoints(
-    element: NonDeleted<ExcalidrawLinearElement>,
-    elementsMap: ElementsMap,
-  ) {
-    mutateElement(
-      element,
-      elementsMap,
-      LinearElementEditor.getNormalizedPoints(element),
-    );
-  }
-
   static duplicateSelectedPoints(appState: AppState, scene: Scene): AppState {
     invariant(
-      appState.editingLinearElement,
+      appState.selectedLinearElement?.isEditing,
       "Not currently editing a linear element",
     );
 
     const elementsMap = scene.getNonDeletedElementsMap();
-    const { selectedPointsIndices, elementId } = appState.editingLinearElement;
+    const { selectedPointsIndices, elementId } = appState.selectedLinearElement;
     const element = LinearElementEditor.getElement(elementId, elementsMap);
 
     invariant(
@@ -1245,8 +1324,8 @@ export class LinearElementEditor {
 
     return {
       ...appState,
-      editingLinearElement: {
-        ...appState.editingLinearElement,
+      selectedLinearElement: {
+        ...appState.selectedLinearElement,
         selectedPointsIndices: nextSelectedIndices,
       },
     };
@@ -1254,41 +1333,43 @@ export class LinearElementEditor {
 
   static deletePoints(
     element: NonDeleted<ExcalidrawLinearElement>,
-    scene: Scene,
+    app: AppClassProperties,
     pointIndices: readonly number[],
   ) {
-    let offsetX = 0;
-    let offsetY = 0;
+    const isUncommittedPoint =
+      app.state.selectedLinearElement?.isEditing &&
+      app.state.selectedLinearElement?.lastUncommittedPoint ===
+        element.points[element.points.length - 1];
 
-    const isDeletingOriginPoint = pointIndices.includes(0);
+    const nextPoints = element.points.filter((_, idx) => {
+      return !pointIndices.includes(idx);
+    });
 
-    // if deleting first point, make the next to be [0,0] and recalculate
-    // positions of the rest with respect to it
-    if (isDeletingOriginPoint) {
-      const firstNonDeletedPoint = element.points.find((point, idx) => {
-        return !pointIndices.includes(idx);
-      });
-      if (firstNonDeletedPoint) {
-        offsetX = firstNonDeletedPoint[0];
-        offsetY = firstNonDeletedPoint[1];
-      }
+    const isPolygon = isLineElement(element) && element.polygon;
+
+    // keep polygon intact if deleting start/end point or uncommitted point
+    if (
+      isPolygon &&
+      (isUncommittedPoint ||
+        pointIndices.includes(0) ||
+        pointIndices.includes(element.points.length - 1))
+    ) {
+      nextPoints[0] = pointFrom(
+        nextPoints[nextPoints.length - 1][0],
+        nextPoints[nextPoints.length - 1][1],
+      );
     }
 
-    const nextPoints = element.points.reduce((acc: LocalPoint[], p, idx) => {
-      if (!pointIndices.includes(idx)) {
-        acc.push(
-          !acc.length
-            ? pointFrom(0, 0)
-            : pointFrom(p[0] - offsetX, p[1] - offsetY),
-        );
-      }
-      return acc;
-    }, []);
+    const {
+      points: normalizedPoints,
+      offsetX,
+      offsetY,
+    } = getNormalizedPoints({ points: nextPoints });
 
     LinearElementEditor._updatePoints(
       element,
-      scene,
-      nextPoints,
+      app.scene,
+      normalizedPoints,
       offsetX,
       offsetY,
     );
@@ -1297,16 +1378,27 @@ export class LinearElementEditor {
   static addPoints(
     element: NonDeleted<ExcalidrawLinearElement>,
     scene: Scene,
-    targetPoints: { point: LocalPoint }[],
+    addedPoints: LocalPoint[],
   ) {
-    const offsetX = 0;
-    const offsetY = 0;
+    const nextPoints = [...element.points, ...addedPoints];
+
+    if (isLineElement(element) && element.polygon) {
+      nextPoints[0] = pointFrom(
+        nextPoints[nextPoints.length - 1][0],
+        nextPoints[nextPoints.length - 1][1],
+      );
+    }
+
+    const {
+      points: normalizedPoints,
+      offsetX,
+      offsetY,
+    } = getNormalizedPoints({ points: nextPoints });
 
-    const nextPoints = [...element.points, ...targetPoints.map((x) => x.point)];
     LinearElementEditor._updatePoints(
       element,
       scene,
-      nextPoints,
+      normalizedPoints,
       offsetX,
       offsetY,
     );
@@ -1323,17 +1415,37 @@ export class LinearElementEditor {
   ) {
     const { points } = element;
 
+    // if polygon, move start and end points together
+    if (isLineElement(element) && element.polygon) {
+      const firstPointUpdate = pointUpdates.get(0);
+      const lastPointUpdate = pointUpdates.get(points.length - 1);
+
+      if (firstPointUpdate) {
+        pointUpdates.set(points.length - 1, {
+          point: pointFrom(
+            firstPointUpdate.point[0],
+            firstPointUpdate.point[1],
+          ),
+          isDragging: firstPointUpdate.isDragging,
+        });
+      } else if (lastPointUpdate) {
+        pointUpdates.set(0, {
+          point: pointFrom(lastPointUpdate.point[0], lastPointUpdate.point[1]),
+          isDragging: lastPointUpdate.isDragging,
+        });
+      }
+    }
+
     // in case we're moving start point, instead of modifying its position
     // which would break the invariant of it being at [0,0], we move
     // all the other points in the opposite direction by delta to
     // offset it. We do the same with actual element.x/y position, so
     // this hacks are completely transparent to the user.
-    const [deltaX, deltaY] =
+
+    const updatedOriginPoint =
       pointUpdates.get(0)?.point ?? pointFrom<LocalPoint>(0, 0);
-    const [offsetX, offsetY] = pointFrom<LocalPoint>(
-      deltaX - points[0][0],
-      deltaY - points[0][1],
-    );
+
+    const [offsetX, offsetY] = updatedOriginPoint;
 
     const nextPoints = isElbowArrow(element)
       ? [
@@ -1400,7 +1512,7 @@ export class LinearElementEditor {
       pointFrom(pointerCoords.x, pointerCoords.y),
     );
     if (
-      !appState.editingLinearElement &&
+      !appState.selectedLinearElement?.isEditing &&
       dist < DRAGGING_THRESHOLD / appState.zoom.value
     ) {
       return false;
@@ -1503,6 +1615,7 @@ export class LinearElementEditor {
         isDragging: options?.isDragging ?? false,
       });
     } else {
+      // TODO do we need to get precise coords here just to calc centers?
       const nextCoords = getElementPointsCoords(element, nextPoints);
       const prevCoords = getElementPointsCoords(element, element.points);
       const nextCenterX = (nextCoords[0] + nextCoords[2]) / 2;
@@ -1511,7 +1624,7 @@ export class LinearElementEditor {
       const prevCenterY = (prevCoords[1] + prevCoords[3]) / 2;
       const dX = prevCenterX - nextCenterX;
       const dY = prevCenterY - nextCenterY;
-      const rotated = pointRotateRads(
+      const rotatedOffset = pointRotateRads(
         pointFrom(offsetX, offsetY),
         pointFrom(dX, dY),
         element.angle,
@@ -1519,8 +1632,8 @@ export class LinearElementEditor {
       scene.mutateElement(element, {
         ...otherUpdates,
         points: nextPoints,
-        x: element.x + rotated[0],
-        y: element.y + rotated[1],
+        x: element.x + rotatedOffset[0],
+        y: element.y + rotatedOffset[1],
       });
     }
   }
@@ -1531,6 +1644,7 @@ export class LinearElementEditor {
     referencePoint: LocalPoint,
     scenePointer: GlobalPoint,
     gridSize: NullableGridSize,
+    customLineAngle?: number,
   ) {
     const referencePointCoords = LinearElementEditor.getPointGlobalCoordinates(
       element,
@@ -1556,6 +1670,7 @@ export class LinearElementEditor {
       referencePointCoords[1],
       gridX,
       gridY,
+      customLineAngle,
     );
 
     return pointRotateRads(
@@ -1592,10 +1707,7 @@ export class LinearElementEditor {
       const index = element.points.length / 2 - 1;
       const midSegmentMidpoint = LinearElementEditor.getSegmentMidPoint(
         element,
-        points[index],
-        points[index + 1],
         index + 1,
-        elementsMap,
       );
 
       x = midSegmentMidpoint[0] - boundTextElement.width / 2;

packages/element/src/mutateElement.ts

@@ -8,7 +8,7 @@ import type { Radians } from "@excalidraw/math";
 
 import type { Mutable } from "@excalidraw/common/utility-types";
 
-import { ShapeCache } from "./ShapeCache";
+import { ShapeCache } from "./shape";
 
 import { updateElbowArrowPoints } from "./elbowArrow";
 
@@ -23,7 +23,7 @@ import type {
 
 export type ElementUpdate<TElement extends ExcalidrawElement> = Omit<
   Partial<TElement>,
-  "id" | "version" | "versionNonce" | "updated"
+  "id" | "updated"
 >;
 
 /**
@@ -137,8 +137,8 @@ export const mutateElement = <TElement extends Mutable<ExcalidrawElement>>(
     ShapeCache.delete(element);
   }
 
-  element.version++;
-  element.versionNonce = randomInteger();
+  element.version = updates.version ?? element.version + 1;
+  element.versionNonce = updates.versionNonce ?? randomInteger();
   element.updated = getUpdatedTimestamp();
 
   return element;
@@ -172,9 +172,9 @@ export const newElementWith = <TElement extends ExcalidrawElement>(
   return {
     ...element,
     ...updates,
+    version: updates.version ?? element.version + 1,
+    versionNonce: updates.versionNonce ?? randomInteger(),
     updated: getUpdatedTimestamp(),
-    version: element.version + 1,
-    versionNonce: randomInteger(),
   };
 };
 

packages/element/src/newElement.ts

@@ -25,6 +25,8 @@ import { getBoundTextMaxWidth } from "./textElement";
 import { normalizeText, measureText } from "./textMeasurements";
 import { wrapText } from "./textWrapping";
 
+import { isLineElement } from "./typeChecks";
+
 import type {
   ExcalidrawElement,
   ExcalidrawImageElement,
@@ -45,6 +47,7 @@ import type {
   ElementsMap,
   ExcalidrawArrowElement,
   ExcalidrawElbowArrowElement,
+  ExcalidrawLineElement,
 } from "./types";
 
 export type ElementConstructorOpts = MarkOptional<
@@ -457,9 +460,10 @@ export const newLinearElement = (
   opts: {
     type: ExcalidrawLinearElement["type"];
     points?: ExcalidrawLinearElement["points"];
+    polygon?: ExcalidrawLineElement["polygon"];
   } & ElementConstructorOpts,
 ): NonDeleted<ExcalidrawLinearElement> => {
-  return {
+  const element = {
     ..._newElementBase<ExcalidrawLinearElement>(opts.type, opts),
     points: opts.points || [],
     lastCommittedPoint: null,
@@ -468,6 +472,17 @@ export const newLinearElement = (
     startArrowhead: null,
     endArrowhead: null,
   };
+
+  if (isLineElement(element)) {
+    const lineElement: NonDeleted<ExcalidrawLineElement> = {
+      ...element,
+      polygon: opts.polygon ?? false,
+    };
+
+    return lineElement;
+  }
+
+  return element;
 };
 
 export const newArrowElement = <T extends boolean>(

packages/element/src/renderElement.ts

@@ -54,9 +54,9 @@ import {
   isImageElement,
 } from "./typeChecks";
 import { getContainingFrame } from "./frame";
-import { getCornerRadius } from "./shapes";
+import { getCornerRadius } from "./utils";
 
-import { ShapeCache } from "./ShapeCache";
+import { ShapeCache } from "./shape";
 
 import type {
   ExcalidrawElement,
@@ -106,6 +106,11 @@ const getCanvasPadding = (element: ExcalidrawElement) => {
       return element.strokeWidth * 12;
     case "text":
       return element.fontSize / 2;
+    case "arrow":
+      if (element.endArrowhead || element.endArrowhead) {
+        return 40;
+      }
+      return 20;
     default:
       return 20;
   }

packages/element/src/resizeElements.ts

@@ -2,7 +2,6 @@ import {
   pointCenter,
   normalizeRadians,
   pointFrom,
-  pointFromPair,
   pointRotateRads,
   type Radians,
   type LocalPoint,
@@ -104,18 +103,6 @@ export const transformElements = (
         );
         updateBoundElements(element, scene);
       }
-    } else if (isTextElement(element) && transformHandleType) {
-      resizeSingleTextElement(
-        originalElements,
-        element,
-        scene,
-        transformHandleType,
-        shouldResizeFromCenter,
-        pointerX,
-        pointerY,
-      );
-      updateBoundElements(element, scene);
-      return true;
     } else if (transformHandleType) {
       const elementId = selectedElements[0].id;
       const latestElement = elementsMap.get(elementId);
@@ -150,6 +137,9 @@ export const transformElements = (
         );
       }
     }
+    if (isTextElement(element)) {
+      updateBoundElements(element, scene);
+    }
     return true;
   } else if (selectedElements.length > 1) {
     if (transformHandleType === "rotation") {
@@ -282,151 +272,50 @@ export const measureFontSizeFromWidth = (
   };
 };
 
-const resizeSingleTextElement = (
-  originalElements: PointerDownState["originalElements"],
+export const resizeSingleTextElement = (
+  origElement: NonDeleted<ExcalidrawTextElement>,
   element: NonDeleted<ExcalidrawTextElement>,
   scene: Scene,
   transformHandleType: TransformHandleDirection,
   shouldResizeFromCenter: boolean,
-  pointerX: number,
-  pointerY: number,
+  nextWidth: number,
+  nextHeight: number,
 ) => {
   const elementsMap = scene.getNonDeletedElementsMap();
-  const [x1, y1, x2, y2, cx, cy] = getElementAbsoluteCoords(
-    element,
-    elementsMap,
-  );
-  // rotation pointer with reverse angle
-  const [rotatedX, rotatedY] = pointRotateRads(
-    pointFrom(pointerX, pointerY),
-    pointFrom(cx, cy),
-    -element.angle as Radians,
-  );
-  let scaleX = 0;
-  let scaleY = 0;
 
-  if (transformHandleType !== "e" && transformHandleType !== "w") {
-    if (transformHandleType.includes("e")) {
-      scaleX = (rotatedX - x1) / (x2 - x1);
-    }
-    if (transformHandleType.includes("w")) {
-      scaleX = (x2 - rotatedX) / (x2 - x1);
-    }
-    if (transformHandleType.includes("n")) {
-      scaleY = (y2 - rotatedY) / (y2 - y1);
-    }
-    if (transformHandleType.includes("s")) {
-      scaleY = (rotatedY - y1) / (y2 - y1);
-    }
+  const metricsWidth = element.width * (nextHeight / element.height);
+
+  const metrics = measureFontSizeFromWidth(element, elementsMap, metricsWidth);
+  if (metrics === null) {
+    return;
   }
 
-  const scale = Math.max(scaleX, scaleY);
+  if (transformHandleType.includes("n") || transformHandleType.includes("s")) {
+    const previousOrigin = pointFrom<GlobalPoint>(origElement.x, origElement.y);
 
-  if (scale > 0) {
-    const nextWidth = element.width * scale;
-    const nextHeight = element.height * scale;
-    const metrics = measureFontSizeFromWidth(element, elementsMap, nextWidth);
-    if (metrics === null) {
-      return;
-    }
-
-    const startTopLeft = [x1, y1];
-    const startBottomRight = [x2, y2];
-    const startCenter = [cx, cy];
-
-    let newTopLeft = pointFrom<GlobalPoint>(x1, y1);
-    if (["n", "w", "nw"].includes(transformHandleType)) {
-      newTopLeft = pointFrom<GlobalPoint>(
-        startBottomRight[0] - Math.abs(nextWidth),
-        startBottomRight[1] - Math.abs(nextHeight),
-      );
-    }
-    if (transformHandleType === "ne") {
-      const bottomLeft = [startTopLeft[0], startBottomRight[1]];
-      newTopLeft = pointFrom<GlobalPoint>(
-        bottomLeft[0],
-        bottomLeft[1] - Math.abs(nextHeight),
-      );
-    }
-    if (transformHandleType === "sw") {
-      const topRight = [startBottomRight[0], startTopLeft[1]];
-      newTopLeft = pointFrom<GlobalPoint>(
-        topRight[0] - Math.abs(nextWidth),
-        topRight[1],
-      );
-    }
-
-    if (["s", "n"].includes(transformHandleType)) {
-      newTopLeft[0] = startCenter[0] - nextWidth / 2;
-    }
-    if (["e", "w"].includes(transformHandleType)) {
-      newTopLeft[1] = startCenter[1] - nextHeight / 2;
-    }
-
-    if (shouldResizeFromCenter) {
-      newTopLeft[0] = startCenter[0] - Math.abs(nextWidth) / 2;
-      newTopLeft[1] = startCenter[1] - Math.abs(nextHeight) / 2;
-    }
-
-    const angle = element.angle;
-    const rotatedTopLeft = pointRotateRads(
-      newTopLeft,
-      pointFrom(cx, cy),
-      angle,
+    const newOrigin = getResizedOrigin(
+      previousOrigin,
+      origElement.width,
+      origElement.height,
+      metricsWidth,
+      nextHeight,
+      origElement.angle,
+      transformHandleType,
+      false,
+      shouldResizeFromCenter,
     );
-    const newCenter = pointFrom<GlobalPoint>(
-      newTopLeft[0] + Math.abs(nextWidth) / 2,
-      newTopLeft[1] + Math.abs(nextHeight) / 2,
-    );
-    const rotatedNewCenter = pointRotateRads(
-      newCenter,
-      pointFrom(cx, cy),
-      angle,
-    );
-    newTopLeft = pointRotateRads(
-      rotatedTopLeft,
-      rotatedNewCenter,
-      -angle as Radians,
-    );
-    const [nextX, nextY] = newTopLeft;
 
     scene.mutateElement(element, {
       fontSize: metrics.size,
-      width: nextWidth,
+      width: metricsWidth,
       height: nextHeight,
-      x: nextX,
-      y: nextY,
+      x: newOrigin.x,
+      y: newOrigin.y,
     });
+    return;
   }
 
   if (transformHandleType === "e" || transformHandleType === "w") {
-    const stateAtResizeStart = originalElements.get(element.id)!;
-    const [x1, y1, x2, y2] = getResizedElementAbsoluteCoords(
-      stateAtResizeStart,
-      stateAtResizeStart.width,
-      stateAtResizeStart.height,
-      true,
-    );
-    const startTopLeft = pointFrom<GlobalPoint>(x1, y1);
-    const startBottomRight = pointFrom<GlobalPoint>(x2, y2);
-    const startCenter = pointCenter(startTopLeft, startBottomRight);
-
-    const rotatedPointer = pointRotateRads(
-      pointFrom(pointerX, pointerY),
-      startCenter,
-      -stateAtResizeStart.angle as Radians,
-    );
-
-    const [esx1, , esx2] = getResizedElementAbsoluteCoords(
-      element,
-      element.width,
-      element.height,
-      true,
-    );
-
-    const boundsCurrentWidth = esx2 - esx1;
-
-    const atStartBoundsWidth = startBottomRight[0] - startTopLeft[0];
     const minWidth = getMinTextElementWidth(
       getFontString({
         fontSize: element.fontSize,
@@ -435,17 +324,7 @@ const resizeSingleTextElement = (
       element.lineHeight,
     );
 
-    let scaleX = atStartBoundsWidth / boundsCurrentWidth;
-
-    if (transformHandleType.includes("e")) {
-      scaleX = (rotatedPointer[0] - startTopLeft[0]) / boundsCurrentWidth;
-    }
-    if (transformHandleType.includes("w")) {
-      scaleX = (startBottomRight[0] - rotatedPointer[0]) / boundsCurrentWidth;
-    }
-
-    const newWidth =
-      element.width * scaleX < minWidth ? minWidth : element.width * scaleX;
+    const newWidth = Math.max(minWidth, nextWidth);
 
     const text = wrapText(
       element.originalText,
@@ -458,49 +337,27 @@ const resizeSingleTextElement = (
       element.lineHeight,
     );
 
-    const eleNewHeight = metrics.height;
+    const newHeight = metrics.height;
 
-    const [newBoundsX1, newBoundsY1, newBoundsX2, newBoundsY2] =
-      getResizedElementAbsoluteCoords(
-        stateAtResizeStart,
-        newWidth,
-        eleNewHeight,
-        true,
-      );
-    const newBoundsWidth = newBoundsX2 - newBoundsX1;
-    const newBoundsHeight = newBoundsY2 - newBoundsY1;
+    const previousOrigin = pointFrom<GlobalPoint>(origElement.x, origElement.y);
 
-    let newTopLeft = [...startTopLeft] as [number, number];
-    if (["n", "w", "nw"].includes(transformHandleType)) {
-      newTopLeft = [
-        startBottomRight[0] - Math.abs(newBoundsWidth),
-        startTopLeft[1],
-      ];
-    }
-
-    // adjust topLeft to new rotation point
-    const angle = stateAtResizeStart.angle;
-    const rotatedTopLeft = pointRotateRads(
-      pointFromPair(newTopLeft),
-      startCenter,
-      angle,
-    );
-    const newCenter = pointFrom(
-      newTopLeft[0] + Math.abs(newBoundsWidth) / 2,
-      newTopLeft[1] + Math.abs(newBoundsHeight) / 2,
-    );
-    const rotatedNewCenter = pointRotateRads(newCenter, startCenter, angle);
-    newTopLeft = pointRotateRads(
-      rotatedTopLeft,
-      rotatedNewCenter,
-      -angle as Radians,
+    const newOrigin = getResizedOrigin(
+      previousOrigin,
+      origElement.width,
+      origElement.height,
+      newWidth,
+      newHeight,
+      element.angle,
+      transformHandleType,
+      false,
+      shouldResizeFromCenter,
     );
 
     const resizedElement: Partial<ExcalidrawTextElement> = {
       width: Math.abs(newWidth),
       height: Math.abs(metrics.height),
-      x: newTopLeft[0],
-      y: newTopLeft[1],
+      x: newOrigin.x,
+      y: newOrigin.y,
       text,
       autoResize: false,
     };
@@ -821,6 +678,18 @@ export const resizeSingleElement = (
     shouldInformMutation?: boolean;
   } = {},
 ) => {
+  if (isTextElement(latestElement) && isTextElement(origElement)) {
+    return resizeSingleTextElement(
+      origElement,
+      latestElement,
+      scene,
+      handleDirection,
+      shouldResizeFromCenter,
+      nextWidth,
+      nextHeight,
+    );
+  }
+
   let boundTextFont: { fontSize?: number } = {};
   const elementsMap = scene.getNonDeletedElementsMap();
   const boundTextElement = getBoundTextElement(latestElement, elementsMap);
@@ -1518,11 +1387,7 @@ export const resizeMultipleElements = (
     } of elementsAndUpdates) {
       const { width, height, angle } = update;
 
-      scene.mutateElement(element, update, {
-        informMutation: true,
-        // needed for the fixed binding point udpate to take effect
-        isDragging: true,
-      });
+      scene.mutateElement(element, update);
 
       updateBoundElements(element, scene, {
         simultaneouslyUpdated: elementsToUpdate,

packages/element/src/shape.ts

@@ -1,26 +1,65 @@
 import { simplify } from "points-on-curve";
 
-import { pointFrom, pointDistance, type LocalPoint } from "@excalidraw/math";
-import { ROUGHNESS, isTransparent, assertNever } from "@excalidraw/common";
+import {
+  type GeometricShape,
+  getClosedCurveShape,
+  getCurveShape,
+  getEllipseShape,
+  getFreedrawShape,
+  getPolygonShape,
+} from "@excalidraw/utils/shape";
+
+import {
+  pointFrom,
+  pointDistance,
+  type LocalPoint,
+  pointRotateRads,
+} from "@excalidraw/math";
+import {
+  ROUGHNESS,
+  isTransparent,
+  assertNever,
+  COLOR_PALETTE,
+  LINE_POLYGON_POINT_MERGE_DISTANCE,
+} from "@excalidraw/common";
+
+import { RoughGenerator } from "roughjs/bin/generator";
+
+import type { GlobalPoint } from "@excalidraw/math";
 
 import type { Mutable } from "@excalidraw/common/utility-types";
 
-import type { EmbedsValidationStatus } from "@excalidraw/excalidraw/types";
-import type { ElementShapes } from "@excalidraw/excalidraw/scene/types";
+import type {
+  AppState,
+  EmbedsValidationStatus,
+} from "@excalidraw/excalidraw/types";
+import type {
+  ElementShape,
+  ElementShapes,
+} from "@excalidraw/excalidraw/scene/types";
+
+import { elementWithCanvasCache } from "./renderElement";
 
 import {
+  canBecomePolygon,
   isElbowArrow,
   isEmbeddableElement,
   isIframeElement,
   isIframeLikeElement,
   isLinearElement,
 } from "./typeChecks";
-import { getCornerRadius, isPathALoop } from "./shapes";
+import { getCornerRadius, isPathALoop } from "./utils";
 import { headingForPointIsHorizontal } from "./heading";
 
 import { canChangeRoundness } from "./comparisons";
 import { generateFreeDrawShape } from "./renderElement";
-import { getArrowheadPoints, getDiamondPoints } from "./bounds";
+import {
+  getArrowheadPoints,
+  getCenterForBounds,
+  getDiamondPoints,
+  getElementAbsoluteCoords,
+} from "./bounds";
+import { shouldTestInside } from "./collision";
 
 import type {
   ExcalidrawElement,
@@ -28,12 +67,89 @@ import type {
   ExcalidrawSelectionElement,
   ExcalidrawLinearElement,
   Arrowhead,
+  ExcalidrawFreeDrawElement,
+  ElementsMap,
+  ExcalidrawLineElement,
 } from "./types";
 
 import type { Drawable, Options } from "roughjs/bin/core";
-import type { RoughGenerator } from "roughjs/bin/generator";
 import type { Point as RoughPoint } from "roughjs/bin/geometry";
 
+export class ShapeCache {
+  private static rg = new RoughGenerator();
+  private static cache = new WeakMap<ExcalidrawElement, ElementShape>();
+
+  /**
+   * Retrieves shape from cache if available. Use this only if shape
+   * is optional and you have a fallback in case it's not cached.
+   */
+  public static get = <T extends ExcalidrawElement>(element: T) => {
+    return ShapeCache.cache.get(
+      element,
+    ) as T["type"] extends keyof ElementShapes
+      ? ElementShapes[T["type"]] | undefined
+      : ElementShape | undefined;
+  };
+
+  public static set = <T extends ExcalidrawElement>(
+    element: T,
+    shape: T["type"] extends keyof ElementShapes
+      ? ElementShapes[T["type"]]
+      : Drawable,
+  ) => ShapeCache.cache.set(element, shape);
+
+  public static delete = (element: ExcalidrawElement) =>
+    ShapeCache.cache.delete(element);
+
+  public static destroy = () => {
+    ShapeCache.cache = new WeakMap();
+  };
+
+  /**
+   * Generates & caches shape for element if not already cached, otherwise
+   * returns cached shape.
+   */
+  public static generateElementShape = <
+    T extends Exclude<ExcalidrawElement, ExcalidrawSelectionElement>,
+  >(
+    element: T,
+    renderConfig: {
+      isExporting: boolean;
+      canvasBackgroundColor: AppState["viewBackgroundColor"];
+      embedsValidationStatus: EmbedsValidationStatus;
+    } | null,
+  ) => {
+    // when exporting, always regenerated to guarantee the latest shape
+    const cachedShape = renderConfig?.isExporting
+      ? undefined
+      : ShapeCache.get(element);
+
+    // `null` indicates no rc shape applicable for this element type,
+    // but it's considered a valid cache value (= do not regenerate)
+    if (cachedShape !== undefined) {
+      return cachedShape;
+    }
+
+    elementWithCanvasCache.delete(element);
+
+    const shape = generateElementShape(
+      element,
+      ShapeCache.rg,
+      renderConfig || {
+        isExporting: false,
+        canvasBackgroundColor: COLOR_PALETTE.white,
+        embedsValidationStatus: null,
+      },
+    ) as T["type"] extends keyof ElementShapes
+      ? ElementShapes[T["type"]]
+      : Drawable | null;
+
+    ShapeCache.cache.set(element, shape);
+
+    return shape;
+  };
+}
+
 const getDashArrayDashed = (strokeWidth: number) => [8, 8 + strokeWidth];
 
 const getDashArrayDotted = (strokeWidth: number) => [1.5, 6 + strokeWidth];
@@ -303,6 +419,182 @@ const getArrowheadShapes = (
   }
 };
 
+export const generateLinearCollisionShape = (
+  element: ExcalidrawLinearElement | ExcalidrawFreeDrawElement,
+) => {
+  const generator = new RoughGenerator();
+  const options: Options = {
+    seed: element.seed,
+    disableMultiStroke: true,
+    disableMultiStrokeFill: true,
+    roughness: 0,
+    preserveVertices: true,
+  };
+  const center = getCenterForBounds(
+    // Need a non-rotated center point
+    element.points.reduce(
+      (acc, point) => {
+        return [
+          Math.min(element.x + point[0], acc[0]),
+          Math.min(element.y + point[1], acc[1]),
+          Math.max(element.x + point[0], acc[2]),
+          Math.max(element.y + point[1], acc[3]),
+        ];
+      },
+      [Infinity, Infinity, -Infinity, -Infinity],
+    ),
+  );
+
+  switch (element.type) {
+    case "line":
+    case "arrow": {
+      // points array can be empty in the beginning, so it is important to add
+      // initial position to it
+      const points = element.points.length
+        ? element.points
+        : [pointFrom<LocalPoint>(0, 0)];
+
+      if (isElbowArrow(element)) {
+        return generator.path(generateElbowArrowShape(points, 16), options)
+          .sets[0].ops;
+      } else if (!element.roundness) {
+        return points.map((point, idx) => {
+          const p = pointRotateRads(
+            pointFrom<GlobalPoint>(element.x + point[0], element.y + point[1]),
+            center,
+            element.angle,
+          );
+
+          return {
+            op: idx === 0 ? "move" : "lineTo",
+            data: pointFrom<LocalPoint>(p[0] - element.x, p[1] - element.y),
+          };
+        });
+      }
+
+      return generator
+        .curve(points as unknown as RoughPoint[], options)
+        .sets[0].ops.slice(0, element.points.length)
+        .map((op, i) => {
+          if (i === 0) {
+            const p = pointRotateRads<GlobalPoint>(
+              pointFrom<GlobalPoint>(
+                element.x + op.data[0],
+                element.y + op.data[1],
+              ),
+              center,
+              element.angle,
+            );
+
+            return {
+              op: "move",
+              data: pointFrom<LocalPoint>(p[0] - element.x, p[1] - element.y),
+            };
+          }
+
+          return {
+            op: "bcurveTo",
+            data: [
+              pointRotateRads(
+                pointFrom<GlobalPoint>(
+                  element.x + op.data[0],
+                  element.y + op.data[1],
+                ),
+                center,
+                element.angle,
+              ),
+              pointRotateRads(
+                pointFrom<GlobalPoint>(
+                  element.x + op.data[2],
+                  element.y + op.data[3],
+                ),
+                center,
+                element.angle,
+              ),
+              pointRotateRads(
+                pointFrom<GlobalPoint>(
+                  element.x + op.data[4],
+                  element.y + op.data[5],
+                ),
+                center,
+                element.angle,
+              ),
+            ]
+              .map((p) =>
+                pointFrom<LocalPoint>(p[0] - element.x, p[1] - element.y),
+              )
+              .flat(),
+          };
+        });
+    }
+    case "freedraw": {
+      if (element.points.length < 2) {
+        return [];
+      }
+
+      const simplifiedPoints = simplify(
+        element.points as Mutable<LocalPoint[]>,
+        0.75,
+      );
+
+      return generator
+        .curve(simplifiedPoints as [number, number][], options)
+        .sets[0].ops.slice(0, element.points.length)
+        .map((op, i) => {
+          if (i === 0) {
+            const p = pointRotateRads<GlobalPoint>(
+              pointFrom<GlobalPoint>(
+                element.x + op.data[0],
+                element.y + op.data[1],
+              ),
+              center,
+              element.angle,
+            );
+
+            return {
+              op: "move",
+              data: pointFrom<LocalPoint>(p[0] - element.x, p[1] - element.y),
+            };
+          }
+
+          return {
+            op: "bcurveTo",
+            data: [
+              pointRotateRads(
+                pointFrom<GlobalPoint>(
+                  element.x + op.data[0],
+                  element.y + op.data[1],
+                ),
+                center,
+                element.angle,
+              ),
+              pointRotateRads(
+                pointFrom<GlobalPoint>(
+                  element.x + op.data[2],
+                  element.y + op.data[3],
+                ),
+                center,
+                element.angle,
+              ),
+              pointRotateRads(
+                pointFrom<GlobalPoint>(
+                  element.x + op.data[4],
+                  element.y + op.data[5],
+                ),
+                center,
+                element.angle,
+              ),
+            ]
+              .map((p) =>
+                pointFrom<LocalPoint>(p[0] - element.x, p[1] - element.y),
+              )
+              .flat(),
+          };
+        });
+    }
+  }
+};
+
 /**
  * Generates the roughjs shape for given element.
  *
@@ -310,7 +602,7 @@ const getArrowheadShapes = (
  *
  * @private
  */
-export const _generateElementShape = (
+const generateElementShape = (
   element: Exclude<NonDeletedExcalidrawElement, ExcalidrawSelectionElement>,
   generator: RoughGenerator,
   {
@@ -611,3 +903,103 @@ const generateElbowArrowShape = (
 
   return d.join(" ");
 };
+
+/**
+ * get the pure geometric shape of an excalidraw elementw
+ * which is then used for hit detection
+ */
+export const getElementShape = <Point extends GlobalPoint | LocalPoint>(
+  element: ExcalidrawElement,
+  elementsMap: ElementsMap,
+): GeometricShape<Point> => {
+  switch (element.type) {
+    case "rectangle":
+    case "diamond":
+    case "frame":
+    case "magicframe":
+    case "embeddable":
+    case "image":
+    case "iframe":
+    case "text":
+    case "selection":
+      return getPolygonShape(element);
+    case "arrow":
+    case "line": {
+      const roughShape =
+        ShapeCache.get(element)?.[0] ??
+        ShapeCache.generateElementShape(element, null)[0];
+      const [, , , , cx, cy] = getElementAbsoluteCoords(element, elementsMap);
+
+      return shouldTestInside(element)
+        ? getClosedCurveShape<Point>(
+            element,
+            roughShape,
+            pointFrom<Point>(element.x, element.y),
+            element.angle,
+            pointFrom(cx, cy),
+          )
+        : getCurveShape<Point>(
+            roughShape,
+            pointFrom<Point>(element.x, element.y),
+            element.angle,
+            pointFrom(cx, cy),
+          );
+    }
+
+    case "ellipse":
+      return getEllipseShape(element);
+
+    case "freedraw": {
+      const [, , , , cx, cy] = getElementAbsoluteCoords(element, elementsMap);
+      return getFreedrawShape(
+        element,
+        pointFrom(cx, cy),
+        shouldTestInside(element),
+      );
+    }
+  }
+};
+
+export const toggleLinePolygonState = (
+  element: ExcalidrawLineElement,
+  nextPolygonState: boolean,
+): {
+  polygon: ExcalidrawLineElement["polygon"];
+  points: ExcalidrawLineElement["points"];
+} | null => {
+  const updatedPoints = [...element.points];
+
+  if (nextPolygonState) {
+    if (!canBecomePolygon(element.points)) {
+      return null;
+    }
+
+    const firstPoint = updatedPoints[0];
+    const lastPoint = updatedPoints[updatedPoints.length - 1];
+
+    const distance = Math.hypot(
+      firstPoint[0] - lastPoint[0],
+      firstPoint[1] - lastPoint[1],
+    );
+
+    if (
+      distance > LINE_POLYGON_POINT_MERGE_DISTANCE ||
+      updatedPoints.length < 4
+    ) {
+      updatedPoints.push(pointFrom(firstPoint[0], firstPoint[1]));
+    } else {
+      updatedPoints[updatedPoints.length - 1] = pointFrom(
+        firstPoint[0],
+        firstPoint[1],
+      );
+    }
+  }
+
+  // TODO: satisfies ElementUpdate<ExcalidrawLineElement>
+  const ret = {
+    polygon: nextPolygonState,
+    points: updatedPoints,
+  };
+
+  return ret;
+};

packages/element/src/shapes.ts

@@ -1,398 +0,0 @@
-import {
-  DEFAULT_ADAPTIVE_RADIUS,
-  DEFAULT_PROPORTIONAL_RADIUS,
-  LINE_CONFIRM_THRESHOLD,
-  ROUNDNESS,
-  invariant,
-  elementCenterPoint,
-} from "@excalidraw/common";
-import {
-  isPoint,
-  pointFrom,
-  pointDistance,
-  pointFromPair,
-  pointRotateRads,
-  pointsEqual,
-  type GlobalPoint,
-  type LocalPoint,
-} from "@excalidraw/math";
-import {
-  getClosedCurveShape,
-  getCurvePathOps,
-  getCurveShape,
-  getEllipseShape,
-  getFreedrawShape,
-  getPolygonShape,
-  type GeometricShape,
-} from "@excalidraw/utils/shape";
-
-import type { NormalizedZoomValue, Zoom } from "@excalidraw/excalidraw/types";
-
-import { shouldTestInside } from "./collision";
-import { LinearElementEditor } from "./linearElementEditor";
-import { getBoundTextElement } from "./textElement";
-import { ShapeCache } from "./ShapeCache";
-
-import { getElementAbsoluteCoords, type Bounds } from "./bounds";
-
-import type {
-  ElementsMap,
-  ExcalidrawElement,
-  ExcalidrawLinearElement,
-  NonDeleted,
-} from "./types";
-
-/**
- * get the pure geometric shape of an excalidraw elementw
- * which is then used for hit detection
- */
-export const getElementShape = <Point extends GlobalPoint | LocalPoint>(
-  element: ExcalidrawElement,
-  elementsMap: ElementsMap,
-): GeometricShape<Point> => {
-  switch (element.type) {
-    case "rectangle":
-    case "diamond":
-    case "frame":
-    case "magicframe":
-    case "embeddable":
-    case "image":
-    case "iframe":
-    case "text":
-    case "selection":
-      return getPolygonShape(element);
-    case "arrow":
-    case "line": {
-      const roughShape =
-        ShapeCache.get(element)?.[0] ??
-        ShapeCache.generateElementShape(element, null)[0];
-      const [, , , , cx, cy] = getElementAbsoluteCoords(element, elementsMap);
-
-      return shouldTestInside(element)
-        ? getClosedCurveShape<Point>(
-            element,
-            roughShape,
-            pointFrom<Point>(element.x, element.y),
-            element.angle,
-            pointFrom(cx, cy),
-          )
-        : getCurveShape<Point>(
-            roughShape,
-            pointFrom<Point>(element.x, element.y),
-            element.angle,
-            pointFrom(cx, cy),
-          );
-    }
-
-    case "ellipse":
-      return getEllipseShape(element);
-
-    case "freedraw": {
-      const [, , , , cx, cy] = getElementAbsoluteCoords(element, elementsMap);
-      return getFreedrawShape(
-        element,
-        pointFrom(cx, cy),
-        shouldTestInside(element),
-      );
-    }
-  }
-};
-
-export const getBoundTextShape = <Point extends GlobalPoint | LocalPoint>(
-  element: ExcalidrawElement,
-  elementsMap: ElementsMap,
-): GeometricShape<Point> | null => {
-  const boundTextElement = getBoundTextElement(element, elementsMap);
-
-  if (boundTextElement) {
-    if (element.type === "arrow") {
-      return getElementShape(
-        {
-          ...boundTextElement,
-          // arrow's bound text accurate position is not stored in the element's property
-          // but rather calculated and returned from the following static method
-          ...LinearElementEditor.getBoundTextElementPosition(
-            element,
-            boundTextElement,
-            elementsMap,
-          ),
-        },
-        elementsMap,
-      );
-    }
-    return getElementShape(boundTextElement, elementsMap);
-  }
-
-  return null;
-};
-
-export const getControlPointsForBezierCurve = <
-  P extends GlobalPoint | LocalPoint,
->(
-  element: NonDeleted<ExcalidrawLinearElement>,
-  endPoint: P,
-) => {
-  const shape = ShapeCache.generateElementShape(element, null);
-  if (!shape) {
-    return null;
-  }
-
-  const ops = getCurvePathOps(shape[0]);
-  let currentP = pointFrom<P>(0, 0);
-  let index = 0;
-  let minDistance = Infinity;
-  let controlPoints: P[] | null = null;
-
-  while (index < ops.length) {
-    const { op, data } = ops[index];
-    if (op === "move") {
-      invariant(
-        isPoint(data),
-        "The returned ops is not compatible with a point",
-      );
-      currentP = pointFromPair(data);
-    }
-    if (op === "bcurveTo") {
-      const p0 = currentP;
-      const p1 = pointFrom<P>(data[0], data[1]);
-      const p2 = pointFrom<P>(data[2], data[3]);
-      const p3 = pointFrom<P>(data[4], data[5]);
-      const distance = pointDistance(p3, endPoint);
-      if (distance < minDistance) {
-        minDistance = distance;
-        controlPoints = [p0, p1, p2, p3];
-      }
-      currentP = p3;
-    }
-    index++;
-  }
-
-  return controlPoints;
-};
-
-export const getBezierXY = <P extends GlobalPoint | LocalPoint>(
-  p0: P,
-  p1: P,
-  p2: P,
-  p3: P,
-  t: number,
-): P => {
-  const equation = (t: number, idx: number) =>
-    Math.pow(1 - t, 3) * p3[idx] +
-    3 * t * Math.pow(1 - t, 2) * p2[idx] +
-    3 * Math.pow(t, 2) * (1 - t) * p1[idx] +
-    p0[idx] * Math.pow(t, 3);
-  const tx = equation(t, 0);
-  const ty = equation(t, 1);
-  return pointFrom(tx, ty);
-};
-
-const getPointsInBezierCurve = <P extends GlobalPoint | LocalPoint>(
-  element: NonDeleted<ExcalidrawLinearElement>,
-  endPoint: P,
-) => {
-  const controlPoints: P[] = getControlPointsForBezierCurve(element, endPoint)!;
-  if (!controlPoints) {
-    return [];
-  }
-  const pointsOnCurve: P[] = [];
-  let t = 1;
-  // Take 20 points on curve for better accuracy
-  while (t > 0) {
-    const p = getBezierXY(
-      controlPoints[0],
-      controlPoints[1],
-      controlPoints[2],
-      controlPoints[3],
-      t,
-    );
-    pointsOnCurve.push(pointFrom(p[0], p[1]));
-    t -= 0.05;
-  }
-  if (pointsOnCurve.length) {
-    if (pointsEqual(pointsOnCurve.at(-1)!, endPoint)) {
-      pointsOnCurve.push(pointFrom(endPoint[0], endPoint[1]));
-    }
-  }
-  return pointsOnCurve;
-};
-
-const getBezierCurveArcLengths = <P extends GlobalPoint | LocalPoint>(
-  element: NonDeleted<ExcalidrawLinearElement>,
-  endPoint: P,
-) => {
-  const arcLengths: number[] = [];
-  arcLengths[0] = 0;
-  const points = getPointsInBezierCurve(element, endPoint);
-  let index = 0;
-  let distance = 0;
-  while (index < points.length - 1) {
-    const segmentDistance = pointDistance(points[index], points[index + 1]);
-    distance += segmentDistance;
-    arcLengths.push(distance);
-    index++;
-  }
-
-  return arcLengths;
-};
-
-export const getBezierCurveLength = <P extends GlobalPoint | LocalPoint>(
-  element: NonDeleted<ExcalidrawLinearElement>,
-  endPoint: P,
-) => {
-  const arcLengths = getBezierCurveArcLengths(element, endPoint);
-  return arcLengths.at(-1) as number;
-};
-
-// This maps interval to actual interval t on the curve so that when t = 0.5, its actually the point at 50% of the length
-export const mapIntervalToBezierT = <P extends GlobalPoint | LocalPoint>(
-  element: NonDeleted<ExcalidrawLinearElement>,
-  endPoint: P,
-  interval: number, // The interval between 0 to 1 for which you want to find the point on the curve,
-) => {
-  const arcLengths = getBezierCurveArcLengths(element, endPoint);
-  const pointsCount = arcLengths.length - 1;
-  const curveLength = arcLengths.at(-1) as number;
-  const targetLength = interval * curveLength;
-  let low = 0;
-  let high = pointsCount;
-  let index = 0;
-  // Doing a binary search to find the largest length that is less than the target length
-  while (low < high) {
-    index = Math.floor(low + (high - low) / 2);
-    if (arcLengths[index] < targetLength) {
-      low = index + 1;
-    } else {
-      high = index;
-    }
-  }
-  if (arcLengths[index] > targetLength) {
-    index--;
-  }
-  if (arcLengths[index] === targetLength) {
-    return index / pointsCount;
-  }
-
-  return (
-    1 -
-    (index +
-      (targetLength - arcLengths[index]) /
-        (arcLengths[index + 1] - arcLengths[index])) /
-      pointsCount
-  );
-};
-
-/**
- * Get the axis-aligned bounding box for a given element
- */
-export const aabbForElement = (
-  element: Readonly<ExcalidrawElement>,
-  offset?: [number, number, number, number],
-) => {
-  const bbox = {
-    minX: element.x,
-    minY: element.y,
-    maxX: element.x + element.width,
-    maxY: element.y + element.height,
-    midX: element.x + element.width / 2,
-    midY: element.y + element.height / 2,
-  };
-
-  const center = elementCenterPoint(element);
-  const [topLeftX, topLeftY] = pointRotateRads(
-    pointFrom(bbox.minX, bbox.minY),
-    center,
-    element.angle,
-  );
-  const [topRightX, topRightY] = pointRotateRads(
-    pointFrom(bbox.maxX, bbox.minY),
-    center,
-    element.angle,
-  );
-  const [bottomRightX, bottomRightY] = pointRotateRads(
-    pointFrom(bbox.maxX, bbox.maxY),
-    center,
-    element.angle,
-  );
-  const [bottomLeftX, bottomLeftY] = pointRotateRads(
-    pointFrom(bbox.minX, bbox.maxY),
-    center,
-    element.angle,
-  );
-
-  const bounds = [
-    Math.min(topLeftX, topRightX, bottomRightX, bottomLeftX),
-    Math.min(topLeftY, topRightY, bottomRightY, bottomLeftY),
-    Math.max(topLeftX, topRightX, bottomRightX, bottomLeftX),
-    Math.max(topLeftY, topRightY, bottomRightY, bottomLeftY),
-  ] as Bounds;
-
-  if (offset) {
-    const [topOffset, rightOffset, downOffset, leftOffset] = offset;
-    return [
-      bounds[0] - leftOffset,
-      bounds[1] - topOffset,
-      bounds[2] + rightOffset,
-      bounds[3] + downOffset,
-    ] as Bounds;
-  }
-
-  return bounds;
-};
-
-export const pointInsideBounds = <P extends GlobalPoint | LocalPoint>(
-  p: P,
-  bounds: Bounds,
-): boolean =>
-  p[0] > bounds[0] && p[0] < bounds[2] && p[1] > bounds[1] && p[1] < bounds[3];
-
-export const aabbsOverlapping = (a: Bounds, b: Bounds) =>
-  pointInsideBounds(pointFrom(a[0], a[1]), b) ||
-  pointInsideBounds(pointFrom(a[2], a[1]), b) ||
-  pointInsideBounds(pointFrom(a[2], a[3]), b) ||
-  pointInsideBounds(pointFrom(a[0], a[3]), b) ||
-  pointInsideBounds(pointFrom(b[0], b[1]), a) ||
-  pointInsideBounds(pointFrom(b[2], b[1]), a) ||
-  pointInsideBounds(pointFrom(b[2], b[3]), a) ||
-  pointInsideBounds(pointFrom(b[0], b[3]), a);
-
-export const getCornerRadius = (x: number, element: ExcalidrawElement) => {
-  if (
-    element.roundness?.type === ROUNDNESS.PROPORTIONAL_RADIUS ||
-    element.roundness?.type === ROUNDNESS.LEGACY
-  ) {
-    return x * DEFAULT_PROPORTIONAL_RADIUS;
-  }
-
-  if (element.roundness?.type === ROUNDNESS.ADAPTIVE_RADIUS) {
-    const fixedRadiusSize = element.roundness?.value ?? DEFAULT_ADAPTIVE_RADIUS;
-
-    const CUTOFF_SIZE = fixedRadiusSize / DEFAULT_PROPORTIONAL_RADIUS;
-
-    if (x <= CUTOFF_SIZE) {
-      return x * DEFAULT_PROPORTIONAL_RADIUS;
-    }
-
-    return fixedRadiusSize;
-  }
-
-  return 0;
-};
-
-// Checks if the first and last point are close enough
-// to be considered a loop
-export const isPathALoop = (
-  points: ExcalidrawLinearElement["points"],
-  /** supply if you want the loop detection to account for current zoom */
-  zoomValue: Zoom["value"] = 1 as NormalizedZoomValue,
-): boolean => {
-  if (points.length >= 3) {
-    const [first, last] = [points[0], points[points.length - 1]];
-    const distance = pointDistance(first, last);
-
-    // Adjusting LINE_CONFIRM_THRESHOLD to current zoom so that when zoomed in
-    // really close we make the threshold smaller, and vice versa.
-    return distance <= LINE_CONFIRM_THRESHOLD / zoomValue;
-  }
-  return false;
-};

packages/element/src/sizeHelpers.ts

@@ -2,14 +2,28 @@ import {
   SHIFT_LOCKING_ANGLE,
   viewportCoordsToSceneCoords,
 } from "@excalidraw/common";
+import {
+  normalizeRadians,
+  radiansBetweenAngles,
+  radiansDifference,
+  type Radians,
+} from "@excalidraw/math";
+
+import { pointsEqual } from "@excalidraw/math";
 
 import type { AppState, Offsets, Zoom } from "@excalidraw/excalidraw/types";
 
 import { getCommonBounds, getElementBounds } from "./bounds";
-import { isFreeDrawElement, isLinearElement } from "./typeChecks";
+import {
+  isArrowElement,
+  isFreeDrawElement,
+  isLinearElement,
+} from "./typeChecks";
 
 import type { ElementsMap, ExcalidrawElement } from "./types";
 
+export const INVISIBLY_SMALL_ELEMENT_SIZE = 0.1;
+
 // TODO:  remove invisible elements consistently actions, so that invisible elements are not recorded by the store, exported, broadcasted or persisted
 //        - perhaps could be as part of a standalone 'cleanup' action, in addition to 'finalize'
 //        - could also be part of `_clearElements`
@@ -17,8 +31,18 @@ export const isInvisiblySmallElement = (
   element: ExcalidrawElement,
 ): boolean => {
   if (isLinearElement(element) || isFreeDrawElement(element)) {
-    return element.points.length < 2;
+    return (
+      element.points.length < 2 ||
+      (element.points.length === 2 &&
+        isArrowElement(element) &&
+        pointsEqual(
+          element.points[0],
+          element.points[element.points.length - 1],
+          INVISIBLY_SMALL_ELEMENT_SIZE,
+        ))
+    );
   }
+
   return element.width === 0 && element.height === 0;
 };
 
@@ -134,13 +158,42 @@ export const getLockedLinearCursorAlignSize = (
   originY: number,
   x: number,
   y: number,
+  customAngle?: number,
 ) => {
   let width = x - originX;
   let height = y - originY;
 
-  const lockedAngle =
-    Math.round(Math.atan(height / width) / SHIFT_LOCKING_ANGLE) *
-    SHIFT_LOCKING_ANGLE;
+  const angle = Math.atan2(height, width) as Radians;
+  let lockedAngle = (Math.round(angle / SHIFT_LOCKING_ANGLE) *
+    SHIFT_LOCKING_ANGLE) as Radians;
+
+  if (customAngle) {
+    // If custom angle is provided, we check if the angle is close to the
+    // custom angle, snap to that if close engough, otherwise snap to the
+    // higher or lower angle depending on the current angle vs custom angle.
+    const lower = (Math.floor(customAngle / SHIFT_LOCKING_ANGLE) *
+      SHIFT_LOCKING_ANGLE) as Radians;
+    if (
+      radiansBetweenAngles(
+        angle,
+        lower,
+        (lower + SHIFT_LOCKING_ANGLE) as Radians,
+      )
+    ) {
+      if (
+        radiansDifference(angle, customAngle as Radians) <
+        SHIFT_LOCKING_ANGLE / 6
+      ) {
+        lockedAngle = customAngle as Radians;
+      } else if (
+        normalizeRadians(angle) > normalizeRadians(customAngle as Radians)
+      ) {
+        lockedAngle = (lower + SHIFT_LOCKING_ANGLE) as Radians;
+      } else {
+        lockedAngle = lower;
+      }
+    }
+  }
 
   if (lockedAngle === 0) {
     height = 0;

packages/element/src/store.ts

@@ -19,9 +19,21 @@ import { newElementWith } from "./mutateElement";
 
 import { ElementsDelta, AppStateDelta, Delta } from "./delta";
 
-import { hashElementsVersion, hashString } from "./index";
+import {
+  syncInvalidIndicesImmutable,
+  hashElementsVersion,
+  hashString,
+  isInitializedImageElement,
+  isImageElement,
+} from "./index";
 
-import type { OrderedExcalidrawElement, SceneElementsMap } from "./types";
+import type { ApplyToOptions } from "./delta";
+
+import type {
+  ExcalidrawElement,
+  OrderedExcalidrawElement,
+  SceneElementsMap,
+} from "./types";
 
 export const CaptureUpdateAction = {
   /**
@@ -105,7 +117,7 @@ export class Store {
     params:
       | {
           action: CaptureUpdateActionType;
-          elements: SceneElementsMap | undefined;
+          elements: readonly ExcalidrawElement[] | undefined;
           appState: AppState | ObservedAppState | undefined;
         }
       | {
@@ -129,13 +141,21 @@ export class Store {
     } else {
       // immediately create an immutable change of the scheduled updates,
       // compared to the current state, so that they won't mutate later on during batching
+      // also, we have to compare against the current state,
+      // as comparing against the snapshot might include yet uncomitted changes (i.e. async freedraw / text / image, etc.)
       const currentSnapshot = StoreSnapshot.create(
         this.app.scene.getElementsMapIncludingDeleted(),
         this.app.state,
       );
+
       const scheduledSnapshot = currentSnapshot.maybeClone(
         action,
-        params.elements,
+        // let's sync invalid indices first, so that we could detect this change
+        // also have the synced elements immutable, so that we don't mutate elements,
+        // that are already in the scene, otherwise we wouldn't see any change
+        params.elements
+          ? syncInvalidIndicesImmutable(params.elements)
+          : undefined,
         params.appState,
       );
 
@@ -213,16 +233,7 @@ export class Store {
       // using the same instance, since in history we have a check against `HistoryEntry`, so that we don't re-record the same delta again
       storeDelta = delta;
     } else {
-      // calculate the deltas based on the previous and next snapshot
-      const elementsDelta = snapshot.metadata.didElementsChange
-        ? ElementsDelta.calculate(prevSnapshot.elements, snapshot.elements)
-        : ElementsDelta.empty();
-
-      const appStateDelta = snapshot.metadata.didAppStateChange
-        ? AppStateDelta.calculate(prevSnapshot.appState, snapshot.appState)
-        : AppStateDelta.empty();
-
-      storeDelta = StoreDelta.create(elementsDelta, appStateDelta);
+      storeDelta = StoreDelta.calculate(prevSnapshot, snapshot);
     }
 
     if (!storeDelta.isEmpty()) {
@@ -505,6 +516,24 @@ export class StoreDelta {
     return new this(opts.id, elements, appState);
   }
 
+  /**
+   * Calculate the delta between the previous and next snapshot.
+   */
+  public static calculate(
+    prevSnapshot: StoreSnapshot,
+    nextSnapshot: StoreSnapshot,
+  ) {
+    const elementsDelta = nextSnapshot.metadata.didElementsChange
+      ? ElementsDelta.calculate(prevSnapshot.elements, nextSnapshot.elements)
+      : ElementsDelta.empty();
+
+    const appStateDelta = nextSnapshot.metadata.didAppStateChange
+      ? AppStateDelta.calculate(prevSnapshot.appState, nextSnapshot.appState)
+      : AppStateDelta.empty();
+
+    return this.create(elementsDelta, appStateDelta);
+  }
+
   /**
    * Restore a store delta instance from a DTO.
    */
@@ -524,9 +553,7 @@ export class StoreDelta {
     id,
     elements: { added, removed, updated },
   }: DTO<StoreDelta>) {
-    const elements = ElementsDelta.create(added, removed, updated, {
-      shouldRedistribute: false,
-    });
+    const elements = ElementsDelta.create(added, removed, updated);
 
     return new this(id, elements, AppStateDelta.empty());
   }
@@ -534,27 +561,10 @@ export class StoreDelta {
   /**
    * Inverse store delta, creates new instance of `StoreDelta`.
    */
-  public static inverse(delta: StoreDelta): StoreDelta {
+  public static inverse(delta: StoreDelta) {
     return this.create(delta.elements.inverse(), delta.appState.inverse());
   }
 
-  /**
-   * Apply latest (remote) changes to the delta, creates new instance of `StoreDelta`.
-   */
-  public static applyLatestChanges(
-    delta: StoreDelta,
-    elements: SceneElementsMap,
-    modifierOptions: "deleted" | "inserted",
-  ): StoreDelta {
-    return this.create(
-      delta.elements.applyLatestChanges(elements, modifierOptions),
-      delta.appState,
-      {
-        id: delta.id,
-      },
-    );
-  }
-
   /**
    * Apply the delta to the passed elements and appState, does not modify the snapshot.
    */
@@ -562,11 +572,14 @@ export class StoreDelta {
     delta: StoreDelta,
     elements: SceneElementsMap,
     appState: AppState,
-    prevSnapshot: StoreSnapshot = StoreSnapshot.empty(),
+    options: ApplyToOptions = {
+      excludedProperties: new Set(),
+    },
   ): [SceneElementsMap, AppState, boolean] {
     const [nextElements, elementsContainVisibleChange] = delta.elements.applyTo(
       elements,
-      prevSnapshot.elements,
+      StoreSnapshot.empty().elements,
+      options,
     );
 
     const [nextAppState, appStateContainsVisibleChange] =
@@ -578,6 +591,28 @@ export class StoreDelta {
     return [nextElements, nextAppState, appliedVisibleChanges];
   }
 
+  /**
+   * Apply latest (remote) changes to the delta, creates new instance of `StoreDelta`.
+   */
+  public static applyLatestChanges(
+    delta: StoreDelta,
+    prevElements: SceneElementsMap,
+    nextElements: SceneElementsMap,
+    modifierOptions?: "deleted" | "inserted",
+  ): StoreDelta {
+    return this.create(
+      delta.elements.applyLatestChanges(
+        prevElements,
+        nextElements,
+        modifierOptions,
+      ),
+      delta.appState,
+      {
+        id: delta.id,
+      },
+    );
+  }
+
   public isEmpty() {
     return this.elements.isEmpty() && this.appState.isEmpty();
   }
@@ -687,11 +722,10 @@ export class StoreSnapshot {
       nextElements.set(id, changedElement);
     }
 
-    const nextAppState = Object.assign(
-      {},
-      this.appState,
-      change.appState,
-    ) as ObservedAppState;
+    const nextAppState = getObservedAppState({
+      ...this.appState,
+      ...change.appState,
+    });
 
     return StoreSnapshot.create(nextElements, nextAppState, {
       // by default we assume that change is different from what we have in the snapshot
@@ -847,7 +881,7 @@ export class StoreSnapshot {
   }
 
   /**
-   * Detect if there any changed elements.
+   * Detect if there are any changed elements.
    */
   private detectChangedElements(
     nextElements: SceneElementsMap,
@@ -882,6 +916,14 @@ export class StoreSnapshot {
         !prevElement || // element was added
         prevElement.version < nextElement.version // element was updated
       ) {
+        if (
+          isImageElement(nextElement) &&
+          !isInitializedImageElement(nextElement)
+        ) {
+          // ignore any updates on uninitialized image elements
+          continue;
+        }
+
         changedElements.set(nextElement.id, nextElement);
       }
     }
@@ -936,26 +978,34 @@ const getDefaultObservedAppState = (): ObservedAppState => {
     viewBackgroundColor: COLOR_PALETTE.white,
     selectedElementIds: {},
     selectedGroupIds: {},
-    editingLinearElementId: null,
     selectedLinearElementId: null,
+    selectedLinearElementIsEditing: null,
     croppingElementId: null,
     activeLockedId: null,
     lockedMultiSelections: {},
   };
 };
 
-export const getObservedAppState = (appState: AppState): ObservedAppState => {
+export const getObservedAppState = (
+  appState: AppState | ObservedAppState,
+): ObservedAppState => {
   const observedAppState = {
     name: appState.name,
     editingGroupId: appState.editingGroupId,
     viewBackgroundColor: appState.viewBackgroundColor,
     selectedElementIds: appState.selectedElementIds,
     selectedGroupIds: appState.selectedGroupIds,
-    editingLinearElementId: appState.editingLinearElement?.elementId || null,
-    selectedLinearElementId: appState.selectedLinearElement?.elementId || null,
     croppingElementId: appState.croppingElementId,
     activeLockedId: appState.activeLockedId,
     lockedMultiSelections: appState.lockedMultiSelections,
+    selectedLinearElementId:
+      (appState as AppState).selectedLinearElement?.elementId ??
+      (appState as ObservedAppState).selectedLinearElementId ??
+      null,
+    selectedLinearElementIsEditing:
+      (appState as AppState).selectedLinearElement?.isEditing ??
+      (appState as ObservedAppState).selectedLinearElementIsEditing ??
+      null,
   };
 
   Reflect.defineProperty(observedAppState, hiddenObservedAppStateProp, {

packages/element/src/textElement.ts

@@ -326,10 +326,7 @@ export const getContainerCenter = (
   if (!midSegmentMidpoint) {
     midSegmentMidpoint = LinearElementEditor.getSegmentMidPoint(
       container,
-      points[index],
-      points[index + 1],
       index + 1,
-      elementsMap,
     );
   }
   return { x: midSegmentMidpoint[0], y: midSegmentMidpoint[1] };

packages/element/src/transformHandles.ts

@@ -330,7 +330,7 @@ export const shouldShowBoundingBox = (
   elements: readonly NonDeletedExcalidrawElement[],
   appState: InteractiveCanvasAppState,
 ) => {
-  if (appState.editingLinearElement) {
+  if (appState.selectedLinearElement?.isEditing) {
     return false;
   }
   if (elements.length > 1) {

packages/element/src/typeChecks.ts

@@ -1,5 +1,7 @@
 import { ROUNDNESS, assertNever } from "@excalidraw/common";
 
+import { pointsEqual } from "@excalidraw/math";
+
 import type { ElementOrToolType } from "@excalidraw/excalidraw/types";
 
 import type { MarkNonNullable } from "@excalidraw/common/utility-types";
@@ -25,6 +27,7 @@ import type {
   ExcalidrawMagicFrameElement,
   ExcalidrawArrowElement,
   ExcalidrawElbowArrowElement,
+  ExcalidrawLineElement,
   PointBinding,
   FixedPointBinding,
   ExcalidrawFlowchartNodeElement,
@@ -108,6 +111,12 @@ export const isLinearElement = (
   return element != null && isLinearElementType(element.type);
 };
 
+export const isLineElement = (
+  element?: ExcalidrawElement | null,
+): element is ExcalidrawLineElement => {
+  return element != null && element.type === "line";
+};
+
 export const isArrowElement = (
   element?: ExcalidrawElement | null,
 ): element is ExcalidrawArrowElement => {
@@ -120,6 +129,15 @@ export const isElbowArrow = (
   return isArrowElement(element) && element.elbowed;
 };
 
+/**
+ * sharp or curved arrow, but not elbow
+ */
+export const isSimpleArrow = (
+  element?: ExcalidrawElement,
+): element is ExcalidrawArrowElement => {
+  return isArrowElement(element) && !element.elbowed;
+};
+
 export const isSharpArrow = (
   element?: ExcalidrawElement,
 ): element is ExcalidrawArrowElement => {
@@ -372,3 +390,26 @@ export const getLinearElementSubType = (
   }
   return "line";
 };
+
+/**
+ * Checks if current element points meet all the conditions for polygon=true
+ * (this isn't a element type check, for that use isLineElement).
+ *
+ * If you want to check if points *can* be turned into a polygon, use
+ *  canBecomePolygon(points).
+ */
+export const isValidPolygon = (
+  points: ExcalidrawLineElement["points"],
+): boolean => {
+  return points.length > 3 && pointsEqual(points[0], points[points.length - 1]);
+};
+
+export const canBecomePolygon = (
+  points: ExcalidrawLineElement["points"],
+): boolean => {
+  return (
+    points.length > 3 ||
+    // 3-point polygons can't have all points in a single line
+    (points.length === 3 && !pointsEqual(points[0], points[points.length - 1]))
+  );
+};

packages/element/src/types.ts

@@ -195,7 +195,8 @@ export type ExcalidrawRectanguloidElement =
   | ExcalidrawFreeDrawElement
   | ExcalidrawIframeLikeElement
   | ExcalidrawFrameLikeElement
-  | ExcalidrawEmbeddableElement;
+  | ExcalidrawEmbeddableElement
+  | ExcalidrawSelectionElement;
 
 /**
  * ExcalidrawElement should be JSON serializable and (eventually) contain
@@ -296,8 +297,10 @@ export type FixedPointBinding = Merge<
   }
 >;
 
+type Index = number;
+
 export type PointsPositionUpdates = Map<
-  number,
+  Index,
   { point: LocalPoint; isDragging?: boolean }
 >;
 
@@ -326,10 +329,16 @@ export type ExcalidrawLinearElement = _ExcalidrawElementBase &
     endArrowhead: Arrowhead | null;
   }>;
 
+export type ExcalidrawLineElement = ExcalidrawLinearElement &
+  Readonly<{
+    type: "line";
+    polygon: boolean;
+  }>;
+
 export type FixedSegment = {
   start: LocalPoint;
   end: LocalPoint;
-  index: number;
+  index: Index;
 };
 
 export type ExcalidrawArrowElement = ExcalidrawLinearElement &

packages/element/src/utils.ts

@@ -1,259 +1,346 @@
+import {
+  DEFAULT_ADAPTIVE_RADIUS,
+  DEFAULT_PROPORTIONAL_RADIUS,
+  LINE_CONFIRM_THRESHOLD,
+  ROUNDNESS,
+} from "@excalidraw/common";
+
 import {
   curve,
+  curveCatmullRomCubicApproxPoints,
+  curveOffsetPoints,
   lineSegment,
+  pointDistance,
   pointFrom,
-  pointFromVector,
+  pointFromArray,
   rectangle,
-  vectorFromPoint,
-  vectorNormalize,
-  vectorScale,
   type GlobalPoint,
 } from "@excalidraw/math";
 
-import { elementCenterPoint } from "@excalidraw/common";
+import type { Curve, LineSegment, LocalPoint } from "@excalidraw/math";
 
-import type { Curve, LineSegment } from "@excalidraw/math";
-
-import { getCornerRadius } from "./shapes";
+import type { NormalizedZoomValue, Zoom } from "@excalidraw/excalidraw/types";
 
 import { getDiamondPoints } from "./bounds";
 
+import { generateLinearCollisionShape } from "./shape";
+
 import type {
   ExcalidrawDiamondElement,
+  ExcalidrawElement,
+  ExcalidrawFreeDrawElement,
+  ExcalidrawLinearElement,
   ExcalidrawRectanguloidElement,
 } from "./types";
 
+type ElementShape = [LineSegment<GlobalPoint>[], Curve<GlobalPoint>[]];
+
+const ElementShapesCache = new WeakMap<
+  ExcalidrawElement,
+  { version: ExcalidrawElement["version"]; shapes: Map<number, ElementShape> }
+>();
+
+const getElementShapesCacheEntry = <T extends ExcalidrawElement>(
+  element: T,
+  offset: number,
+): ElementShape | undefined => {
+  const record = ElementShapesCache.get(element);
+
+  if (!record) {
+    return undefined;
+  }
+
+  const { version, shapes } = record;
+
+  if (version !== element.version) {
+    ElementShapesCache.delete(element);
+    return undefined;
+  }
+
+  return shapes.get(offset);
+};
+
+const setElementShapesCacheEntry = <T extends ExcalidrawElement>(
+  element: T,
+  shape: ElementShape,
+  offset: number,
+) => {
+  const record = ElementShapesCache.get(element);
+
+  if (!record) {
+    ElementShapesCache.set(element, {
+      version: element.version,
+      shapes: new Map([[offset, shape]]),
+    });
+
+    return;
+  }
+
+  const { version, shapes } = record;
+
+  if (version !== element.version) {
+    ElementShapesCache.set(element, {
+      version: element.version,
+      shapes: new Map([[offset, shape]]),
+    });
+
+    return;
+  }
+
+  shapes.set(offset, shape);
+};
+
+/**
+ * Returns the **rotated** components of freedraw, line or arrow elements.
+ *
+ * @param element The linear element to deconstruct
+ * @returns The rotated in components.
+ */
+export function deconstructLinearOrFreeDrawElement(
+  element: ExcalidrawLinearElement | ExcalidrawFreeDrawElement,
+): [LineSegment<GlobalPoint>[], Curve<GlobalPoint>[]] {
+  const cachedShape = getElementShapesCacheEntry(element, 0);
+
+  if (cachedShape) {
+    return cachedShape;
+  }
+
+  const ops = generateLinearCollisionShape(element) as {
+    op: string;
+    data: number[];
+  }[];
+  const lines = [];
+  const curves = [];
+
+  for (let idx = 0; idx < ops.length; idx += 1) {
+    const op = ops[idx];
+    const prevPoint =
+      ops[idx - 1] && pointFromArray<LocalPoint>(ops[idx - 1].data.slice(-2));
+    switch (op.op) {
+      case "move":
+        continue;
+      case "lineTo":
+        if (!prevPoint) {
+          throw new Error("prevPoint is undefined");
+        }
+
+        lines.push(
+          lineSegment<GlobalPoint>(
+            pointFrom<GlobalPoint>(
+              element.x + prevPoint[0],
+              element.y + prevPoint[1],
+            ),
+            pointFrom<GlobalPoint>(
+              element.x + op.data[0],
+              element.y + op.data[1],
+            ),
+          ),
+        );
+        continue;
+      case "bcurveTo":
+        if (!prevPoint) {
+          throw new Error("prevPoint is undefined");
+        }
+
+        curves.push(
+          curve<GlobalPoint>(
+            pointFrom<GlobalPoint>(
+              element.x + prevPoint[0],
+              element.y + prevPoint[1],
+            ),
+            pointFrom<GlobalPoint>(
+              element.x + op.data[0],
+              element.y + op.data[1],
+            ),
+            pointFrom<GlobalPoint>(
+              element.x + op.data[2],
+              element.y + op.data[3],
+            ),
+            pointFrom<GlobalPoint>(
+              element.x + op.data[4],
+              element.y + op.data[5],
+            ),
+          ),
+        );
+        continue;
+      default: {
+        console.error("Unknown op type", op.op);
+      }
+    }
+  }
+
+  const shape = [lines, curves] as ElementShape;
+  setElementShapesCacheEntry(element, shape, 0);
+
+  return shape;
+}
+
 /**
  * Get the building components of a rectanguloid element in the form of
- * line segments and curves.
+ * line segments and curves **unrotated**.
  *
  * @param element Target rectanguloid element
  * @param offset Optional offset to expand the rectanguloid shape
- * @returns Tuple of line segments (0) and curves (1)
+ * @returns Tuple of **unrotated** line segments (0) and curves (1)
  */
 export function deconstructRectanguloidElement(
   element: ExcalidrawRectanguloidElement,
   offset: number = 0,
 ): [LineSegment<GlobalPoint>[], Curve<GlobalPoint>[]] {
-  const roundness = getCornerRadius(
+  const cachedShape = getElementShapesCacheEntry(element, offset);
+
+  if (cachedShape) {
+    return cachedShape;
+  }
+
+  let radius = getCornerRadius(
     Math.min(element.width, element.height),
     element,
   );
 
-  if (roundness <= 0) {
-    const r = rectangle(
-      pointFrom(element.x - offset, element.y - offset),
-      pointFrom(
-        element.x + element.width + offset,
-        element.y + element.height + offset,
-      ),
-    );
-
-    const top = lineSegment<GlobalPoint>(
-      pointFrom<GlobalPoint>(r[0][0] + roundness, r[0][1]),
-      pointFrom<GlobalPoint>(r[1][0] - roundness, r[0][1]),
-    );
-    const right = lineSegment<GlobalPoint>(
-      pointFrom<GlobalPoint>(r[1][0], r[0][1] + roundness),
-      pointFrom<GlobalPoint>(r[1][0], r[1][1] - roundness),
-    );
-    const bottom = lineSegment<GlobalPoint>(
-      pointFrom<GlobalPoint>(r[0][0] + roundness, r[1][1]),
-      pointFrom<GlobalPoint>(r[1][0] - roundness, r[1][1]),
-    );
-    const left = lineSegment<GlobalPoint>(
-      pointFrom<GlobalPoint>(r[0][0], r[1][1] - roundness),
-      pointFrom<GlobalPoint>(r[0][0], r[0][1] + roundness),
-    );
-    const sides = [top, right, bottom, left];
-
-    return [sides, []];
+  if (radius === 0) {
+    radius = 0.01;
   }
 
-  const center = elementCenterPoint(element);
-
   const r = rectangle(
     pointFrom(element.x, element.y),
     pointFrom(element.x + element.width, element.y + element.height),
   );
 
   const top = lineSegment<GlobalPoint>(
-    pointFrom<GlobalPoint>(r[0][0] + roundness, r[0][1]),
-    pointFrom<GlobalPoint>(r[1][0] - roundness, r[0][1]),
+    pointFrom<GlobalPoint>(r[0][0] + radius, r[0][1]),
+    pointFrom<GlobalPoint>(r[1][0] - radius, r[0][1]),
   );
   const right = lineSegment<GlobalPoint>(
-    pointFrom<GlobalPoint>(r[1][0], r[0][1] + roundness),
-    pointFrom<GlobalPoint>(r[1][0], r[1][1] - roundness),
+    pointFrom<GlobalPoint>(r[1][0], r[0][1] + radius),
+    pointFrom<GlobalPoint>(r[1][0], r[1][1] - radius),
   );
   const bottom = lineSegment<GlobalPoint>(
-    pointFrom<GlobalPoint>(r[0][0] + roundness, r[1][1]),
-    pointFrom<GlobalPoint>(r[1][0] - roundness, r[1][1]),
+    pointFrom<GlobalPoint>(r[0][0] + radius, r[1][1]),
+    pointFrom<GlobalPoint>(r[1][0] - radius, r[1][1]),
   );
   const left = lineSegment<GlobalPoint>(
-    pointFrom<GlobalPoint>(r[0][0], r[1][1] - roundness),
-    pointFrom<GlobalPoint>(r[0][0], r[0][1] + roundness),
+    pointFrom<GlobalPoint>(r[0][0], r[1][1] - radius),
+    pointFrom<GlobalPoint>(r[0][0], r[0][1] + radius),
   );
 
-  const offsets = [
-    vectorScale(
-      vectorNormalize(
-        vectorFromPoint(pointFrom(r[0][0] - offset, r[0][1] - offset), center),
-      ),
-      offset,
-    ), // TOP LEFT
-    vectorScale(
-      vectorNormalize(
-        vectorFromPoint(pointFrom(r[1][0] + offset, r[0][1] - offset), center),
-      ),
-      offset,
-    ), //TOP RIGHT
-    vectorScale(
-      vectorNormalize(
-        vectorFromPoint(pointFrom(r[1][0] + offset, r[1][1] + offset), center),
-      ),
-      offset,
-    ), // BOTTOM RIGHT
-    vectorScale(
-      vectorNormalize(
-        vectorFromPoint(pointFrom(r[0][0] - offset, r[1][1] + offset), center),
-      ),
-      offset,
-    ), // BOTTOM LEFT
-  ];
-
-  const corners = [
+  const baseCorners = [
     curve(
-      pointFromVector(offsets[0], left[1]),
-      pointFromVector(
-        offsets[0],
-        pointFrom<GlobalPoint>(
-          left[1][0] + (2 / 3) * (r[0][0] - left[1][0]),
-          left[1][1] + (2 / 3) * (r[0][1] - left[1][1]),
-        ),
+      left[1],
+      pointFrom<GlobalPoint>(
+        left[1][0] + (2 / 3) * (r[0][0] - left[1][0]),
+        left[1][1] + (2 / 3) * (r[0][1] - left[1][1]),
       ),
-      pointFromVector(
-        offsets[0],
-        pointFrom<GlobalPoint>(
-          top[0][0] + (2 / 3) * (r[0][0] - top[0][0]),
-          top[0][1] + (2 / 3) * (r[0][1] - top[0][1]),
-        ),
+      pointFrom<GlobalPoint>(
+        top[0][0] + (2 / 3) * (r[0][0] - top[0][0]),
+        top[0][1] + (2 / 3) * (r[0][1] - top[0][1]),
       ),
-      pointFromVector(offsets[0], top[0]),
+      top[0],
     ), // TOP LEFT
     curve(
-      pointFromVector(offsets[1], top[1]),
-      pointFromVector(
-        offsets[1],
-        pointFrom<GlobalPoint>(
-          top[1][0] + (2 / 3) * (r[1][0] - top[1][0]),
-          top[1][1] + (2 / 3) * (r[0][1] - top[1][1]),
-        ),
+      top[1],
+      pointFrom<GlobalPoint>(
+        top[1][0] + (2 / 3) * (r[1][0] - top[1][0]),
+        top[1][1] + (2 / 3) * (r[0][1] - top[1][1]),
       ),
-      pointFromVector(
-        offsets[1],
-        pointFrom<GlobalPoint>(
-          right[0][0] + (2 / 3) * (r[1][0] - right[0][0]),
-          right[0][1] + (2 / 3) * (r[0][1] - right[0][1]),
-        ),
+      pointFrom<GlobalPoint>(
+        right[0][0] + (2 / 3) * (r[1][0] - right[0][0]),
+        right[0][1] + (2 / 3) * (r[0][1] - right[0][1]),
       ),
-      pointFromVector(offsets[1], right[0]),
+      right[0],
     ), // TOP RIGHT
     curve(
-      pointFromVector(offsets[2], right[1]),
-      pointFromVector(
-        offsets[2],
-        pointFrom<GlobalPoint>(
-          right[1][0] + (2 / 3) * (r[1][0] - right[1][0]),
-          right[1][1] + (2 / 3) * (r[1][1] - right[1][1]),
-        ),
+      right[1],
+      pointFrom<GlobalPoint>(
+        right[1][0] + (2 / 3) * (r[1][0] - right[1][0]),
+        right[1][1] + (2 / 3) * (r[1][1] - right[1][1]),
       ),
-      pointFromVector(
-        offsets[2],
-        pointFrom<GlobalPoint>(
-          bottom[1][0] + (2 / 3) * (r[1][0] - bottom[1][0]),
-          bottom[1][1] + (2 / 3) * (r[1][1] - bottom[1][1]),
-        ),
+      pointFrom<GlobalPoint>(
+        bottom[1][0] + (2 / 3) * (r[1][0] - bottom[1][0]),
+        bottom[1][1] + (2 / 3) * (r[1][1] - bottom[1][1]),
       ),
-      pointFromVector(offsets[2], bottom[1]),
+      bottom[1],
     ), // BOTTOM RIGHT
     curve(
-      pointFromVector(offsets[3], bottom[0]),
-      pointFromVector(
-        offsets[3],
-        pointFrom<GlobalPoint>(
-          bottom[0][0] + (2 / 3) * (r[0][0] - bottom[0][0]),
-          bottom[0][1] + (2 / 3) * (r[1][1] - bottom[0][1]),
-        ),
+      bottom[0],
+      pointFrom<GlobalPoint>(
+        bottom[0][0] + (2 / 3) * (r[0][0] - bottom[0][0]),
+        bottom[0][1] + (2 / 3) * (r[1][1] - bottom[0][1]),
       ),
-      pointFromVector(
-        offsets[3],
-        pointFrom<GlobalPoint>(
-          left[0][0] + (2 / 3) * (r[0][0] - left[0][0]),
-          left[0][1] + (2 / 3) * (r[1][1] - left[0][1]),
-        ),
+      pointFrom<GlobalPoint>(
+        left[0][0] + (2 / 3) * (r[0][0] - left[0][0]),
+        left[0][1] + (2 / 3) * (r[1][1] - left[0][1]),
       ),
-      pointFromVector(offsets[3], left[0]),
+      left[0],
     ), // BOTTOM LEFT
   ];
 
-  const sides = [
-    lineSegment<GlobalPoint>(corners[0][3], corners[1][0]),
-    lineSegment<GlobalPoint>(corners[1][3], corners[2][0]),
-    lineSegment<GlobalPoint>(corners[2][3], corners[3][0]),
-    lineSegment<GlobalPoint>(corners[3][3], corners[0][0]),
-  ];
+  const corners =
+    offset > 0
+      ? baseCorners.map(
+          (corner) =>
+            curveCatmullRomCubicApproxPoints(
+              curveOffsetPoints(corner, offset),
+            )!,
+        )
+      : [
+          [baseCorners[0]],
+          [baseCorners[1]],
+          [baseCorners[2]],
+          [baseCorners[3]],
+        ];
 
-  return [sides, corners];
+  const sides = [
+    lineSegment<GlobalPoint>(
+      corners[0][corners[0].length - 1][3],
+      corners[1][0][0],
+    ),
+    lineSegment<GlobalPoint>(
+      corners[1][corners[1].length - 1][3],
+      corners[2][0][0],
+    ),
+    lineSegment<GlobalPoint>(
+      corners[2][corners[2].length - 1][3],
+      corners[3][0][0],
+    ),
+    lineSegment<GlobalPoint>(
+      corners[3][corners[3].length - 1][3],
+      corners[0][0][0],
+    ),
+  ];
+  const shape = [sides, corners.flat()] as ElementShape;
+
+  setElementShapesCacheEntry(element, shape, offset);
+
+  return shape;
 }
 
 /**
- * Get the building components of a diamond element in the form of
- * line segments and curves as a tuple, in this order.
+ * Get the **unrotated** building components of a diamond element
+ * in the form of line segments and curves as a tuple, in this order.
  *
  * @param element The element to deconstruct
  * @param offset An optional offset
- * @returns Tuple of line segments (0) and curves (1)
+ * @returns Tuple of line **unrotated** segments (0) and curves (1)
  */
 export function deconstructDiamondElement(
   element: ExcalidrawDiamondElement,
   offset: number = 0,
 ): [LineSegment<GlobalPoint>[], Curve<GlobalPoint>[]] {
-  const [topX, topY, rightX, rightY, bottomX, bottomY, leftX, leftY] =
-    getDiamondPoints(element);
-  const verticalRadius = getCornerRadius(Math.abs(topX - leftX), element);
-  const horizontalRadius = getCornerRadius(Math.abs(rightY - topY), element);
+  const cachedShape = getElementShapesCacheEntry(element, offset);
 
-  if (element.roundness?.type == null) {
-    const [top, right, bottom, left]: GlobalPoint[] = [
-      pointFrom(element.x + topX, element.y + topY - offset),
-      pointFrom(element.x + rightX + offset, element.y + rightY),
-      pointFrom(element.x + bottomX, element.y + bottomY + offset),
-      pointFrom(element.x + leftX - offset, element.y + leftY),
-    ];
-
-    // Create the line segment parts of the diamond
-    // NOTE: Horizontal and vertical seems to be flipped here
-    const topRight = lineSegment<GlobalPoint>(
-      pointFrom(top[0] + verticalRadius, top[1] + horizontalRadius),
-      pointFrom(right[0] - verticalRadius, right[1] - horizontalRadius),
-    );
-    const bottomRight = lineSegment<GlobalPoint>(
-      pointFrom(right[0] - verticalRadius, right[1] + horizontalRadius),
-      pointFrom(bottom[0] + verticalRadius, bottom[1] - horizontalRadius),
-    );
-    const bottomLeft = lineSegment<GlobalPoint>(
-      pointFrom(bottom[0] - verticalRadius, bottom[1] - horizontalRadius),
-      pointFrom(left[0] + verticalRadius, left[1] + horizontalRadius),
-    );
-    const topLeft = lineSegment<GlobalPoint>(
-      pointFrom(left[0] + verticalRadius, left[1] - horizontalRadius),
-      pointFrom(top[0] - verticalRadius, top[1] + horizontalRadius),
-    );
-
-    return [[topRight, bottomRight, bottomLeft, topLeft], []];
+  if (cachedShape) {
+    return cachedShape;
   }
 
-  const center = elementCenterPoint(element);
+  const [topX, topY, rightX, rightY, bottomX, bottomY, leftX, leftY] =
+    getDiamondPoints(element);
+  const verticalRadius = element.roundness
+    ? getCornerRadius(Math.abs(topX - leftX), element)
+    : (topX - leftX) * 0.01;
+  const horizontalRadius = element.roundness
+    ? getCornerRadius(Math.abs(rightY - topY), element)
+    : (rightY - topY) * 0.01;
 
   const [top, right, bottom, left]: GlobalPoint[] = [
     pointFrom(element.x + topX, element.y + topY),
@@ -262,94 +349,135 @@ export function deconstructDiamondElement(
     pointFrom(element.x + leftX, element.y + leftY),
   ];
 
-  const offsets = [
-    vectorScale(vectorNormalize(vectorFromPoint(right, center)), offset), // RIGHT
-    vectorScale(vectorNormalize(vectorFromPoint(bottom, center)), offset), // BOTTOM
-    vectorScale(vectorNormalize(vectorFromPoint(left, center)), offset), // LEFT
-    vectorScale(vectorNormalize(vectorFromPoint(top, center)), offset), // TOP
-  ];
-
-  const corners = [
+  const baseCorners = [
     curve(
-      pointFromVector(
-        offsets[0],
-        pointFrom<GlobalPoint>(
-          right[0] - verticalRadius,
-          right[1] - horizontalRadius,
-        ),
+      pointFrom<GlobalPoint>(
+        right[0] - verticalRadius,
+        right[1] - horizontalRadius,
       ),
-      pointFromVector(offsets[0], right),
-      pointFromVector(offsets[0], right),
-      pointFromVector(
-        offsets[0],
-        pointFrom<GlobalPoint>(
-          right[0] - verticalRadius,
-          right[1] + horizontalRadius,
-        ),
+      right,
+      right,
+      pointFrom<GlobalPoint>(
+        right[0] - verticalRadius,
+        right[1] + horizontalRadius,
       ),
     ), // RIGHT
     curve(
-      pointFromVector(
-        offsets[1],
-        pointFrom<GlobalPoint>(
-          bottom[0] + verticalRadius,
-          bottom[1] - horizontalRadius,
-        ),
+      pointFrom<GlobalPoint>(
+        bottom[0] + verticalRadius,
+        bottom[1] - horizontalRadius,
       ),
-      pointFromVector(offsets[1], bottom),
-      pointFromVector(offsets[1], bottom),
-      pointFromVector(
-        offsets[1],
-        pointFrom<GlobalPoint>(
-          bottom[0] - verticalRadius,
-          bottom[1] - horizontalRadius,
-        ),
+      bottom,
+      bottom,
+      pointFrom<GlobalPoint>(
+        bottom[0] - verticalRadius,
+        bottom[1] - horizontalRadius,
       ),
     ), // BOTTOM
     curve(
-      pointFromVector(
-        offsets[2],
-        pointFrom<GlobalPoint>(
-          left[0] + verticalRadius,
-          left[1] + horizontalRadius,
-        ),
+      pointFrom<GlobalPoint>(
+        left[0] + verticalRadius,
+        left[1] + horizontalRadius,
       ),
-      pointFromVector(offsets[2], left),
-      pointFromVector(offsets[2], left),
-      pointFromVector(
-        offsets[2],
-        pointFrom<GlobalPoint>(
-          left[0] + verticalRadius,
-          left[1] - horizontalRadius,
-        ),
+      left,
+      left,
+      pointFrom<GlobalPoint>(
+        left[0] + verticalRadius,
+        left[1] - horizontalRadius,
       ),
     ), // LEFT
     curve(
-      pointFromVector(
-        offsets[3],
-        pointFrom<GlobalPoint>(
-          top[0] - verticalRadius,
-          top[1] + horizontalRadius,
-        ),
+      pointFrom<GlobalPoint>(
+        top[0] - verticalRadius,
+        top[1] + horizontalRadius,
       ),
-      pointFromVector(offsets[3], top),
-      pointFromVector(offsets[3], top),
-      pointFromVector(
-        offsets[3],
-        pointFrom<GlobalPoint>(
-          top[0] + verticalRadius,
-          top[1] + horizontalRadius,
-        ),
+      top,
+      top,
+      pointFrom<GlobalPoint>(
+        top[0] + verticalRadius,
+        top[1] + horizontalRadius,
       ),
     ), // TOP
   ];
 
+  const corners =
+    offset > 0
+      ? baseCorners.map(
+          (corner) =>
+            curveCatmullRomCubicApproxPoints(
+              curveOffsetPoints(corner, offset),
+            )!,
+        )
+      : [
+          [baseCorners[0]],
+          [baseCorners[1]],
+          [baseCorners[2]],
+          [baseCorners[3]],
+        ];
+
   const sides = [
-    lineSegment<GlobalPoint>(corners[0][3], corners[1][0]),
-    lineSegment<GlobalPoint>(corners[1][3], corners[2][0]),
-    lineSegment<GlobalPoint>(corners[2][3], corners[3][0]),
-    lineSegment<GlobalPoint>(corners[3][3], corners[0][0]),
+    lineSegment<GlobalPoint>(
+      corners[0][corners[0].length - 1][3],
+      corners[1][0][0],
+    ),
+    lineSegment<GlobalPoint>(
+      corners[1][corners[1].length - 1][3],
+      corners[2][0][0],
+    ),
+    lineSegment<GlobalPoint>(
+      corners[2][corners[2].length - 1][3],
+      corners[3][0][0],
+    ),
+    lineSegment<GlobalPoint>(
+      corners[3][corners[3].length - 1][3],
+      corners[0][0][0],
+    ),
   ];
 
-  return [sides, corners];
+  const shape = [sides, corners.flat()] as ElementShape;
+
+  setElementShapesCacheEntry(element, shape, offset);
+
+  return shape;
 }
+
+// Checks if the first and last point are close enough
+// to be considered a loop
+export const isPathALoop = (
+  points: ExcalidrawLinearElement["points"],
+  /** supply if you want the loop detection to account for current zoom */
+  zoomValue: Zoom["value"] = 1 as NormalizedZoomValue,
+): boolean => {
+  if (points.length >= 3) {
+    const [first, last] = [points[0], points[points.length - 1]];
+    const distance = pointDistance(first, last);
+
+    // Adjusting LINE_CONFIRM_THRESHOLD to current zoom so that when zoomed in
+    // really close we make the threshold smaller, and vice versa.
+    return distance <= LINE_CONFIRM_THRESHOLD / zoomValue;
+  }
+  return false;
+};
+
+export const getCornerRadius = (x: number, element: ExcalidrawElement) => {
+  if (
+    element.roundness?.type === ROUNDNESS.PROPORTIONAL_RADIUS ||
+    element.roundness?.type === ROUNDNESS.LEGACY
+  ) {
+    return x * DEFAULT_PROPORTIONAL_RADIUS;
+  }
+
+  if (element.roundness?.type === ROUNDNESS.ADAPTIVE_RADIUS) {
+    const fixedRadiusSize = element.roundness?.value ?? DEFAULT_ADAPTIVE_RADIUS;
+
+    const CUTOFF_SIZE = fixedRadiusSize / DEFAULT_PROPORTIONAL_RADIUS;
+
+    if (x <= CUTOFF_SIZE) {
+      return x * DEFAULT_PROPORTIONAL_RADIUS;
+    }
+
+    return fixedRadiusSize;
+  }
+
+  return 0;
+};

packages/element/tests/__snapshots__/linearElementEditor.test.tsx.snap

@@ -17,7 +17,7 @@ exports[`Test Linear Elements > Test bound text element > should match styles fo
   class="excalidraw-wysiwyg"
   data-type="wysiwyg"
   dir="auto"
-  style="position: absolute; display: inline-block; min-height: 1em; backface-visibility: hidden; margin: 0px; padding: 0px; border: 0px; outline: 0; resize: none; background: transparent; overflow: hidden; z-index: var(--zIndex-wysiwyg); word-break: break-word; white-space: pre-wrap; overflow-wrap: break-word; box-sizing: content-box; width: 10.5px; height: 26.25px; left: 35px; top: 7.5px; transform: translate(0px, 0px) scale(1) rotate(0deg); text-align: center; vertical-align: middle; color: rgb(30, 30, 30); opacity: 1; filter: var(--theme-filter); max-height: 992.5px; font: Emoji 20px 20px; line-height: 1.25; font-family: Excalifont, Xiaolai, Segoe UI Emoji;"
+  style="position: absolute; display: inline-block; min-height: 1em; backface-visibility: hidden; margin: 0px; padding: 0px; border: 0px; outline: 0; resize: none; background: transparent; overflow: hidden; z-index: var(--zIndex-wysiwyg); word-break: break-word; white-space: pre-wrap; overflow-wrap: break-word; box-sizing: content-box; width: 10.5px; height: 26.25px; left: 35px; top: 7.5px; transform: translate(0px, 0px) scale(1) rotate(0deg); text-align: center; vertical-align: middle; color: rgb(30, 30, 30); opacity: 1; filter: var(--theme-filter); max-height: 992.5px; font: Emoji 20px 20px; line-height: 1.25; font-family: Excalifont, Xiaolai, sans-serif, Segoe UI Emoji;"
   tabindex="0"
   wrap="off"
 />

packages/element/tests/align.test.tsx

@@ -35,6 +35,7 @@ const createAndSelectTwoRectangles = () => {
   // The second rectangle is already reselected because it was the last element created
   mouse.reset();
   Keyboard.withModifierKeys({ shift: true }, () => {
+    mouse.moveTo(10, 0);
     mouse.click();
   });
 };
@@ -52,6 +53,7 @@ const createAndSelectTwoRectanglesWithDifferentSizes = () => {
   // The second rectangle is already reselected because it was the last element created
   mouse.reset();
   Keyboard.withModifierKeys({ shift: true }, () => {
+    mouse.moveTo(10, 0);
     mouse.click();
   });
 };
@@ -202,6 +204,7 @@ describe("aligning", () => {
     // The second rectangle is already reselected because it was the last element created
     mouse.reset();
     Keyboard.withModifierKeys({ shift: true }, () => {
+      mouse.moveTo(10, 0);
       mouse.click();
     });
 
@@ -215,6 +218,7 @@ describe("aligning", () => {
     // Add the created group to the current selection
     mouse.restorePosition(0, 0);
     Keyboard.withModifierKeys({ shift: true }, () => {
+      mouse.moveTo(10, 0);
       mouse.click();
     });
   };
@@ -316,6 +320,7 @@ describe("aligning", () => {
     // The second rectangle is already selected because it was the last element created
     mouse.reset();
     Keyboard.withModifierKeys({ shift: true }, () => {
+      mouse.moveTo(10, 0);
       mouse.click();
     });
 
@@ -330,7 +335,7 @@ describe("aligning", () => {
     mouse.down();
     mouse.up(100, 100);
 
-    mouse.restorePosition(200, 200);
+    mouse.restorePosition(210, 200);
     Keyboard.withModifierKeys({ shift: true }, () => {
       mouse.click();
     });
@@ -341,6 +346,7 @@ describe("aligning", () => {
     // The second group is already selected because it was the last group created
     mouse.reset();
     Keyboard.withModifierKeys({ shift: true }, () => {
+      mouse.moveTo(10, 0);
       mouse.click();
     });
   };
@@ -454,6 +460,7 @@ describe("aligning", () => {
     // The second rectangle is already reselected because it was the last element created
     mouse.reset();
     Keyboard.withModifierKeys({ shift: true }, () => {
+      mouse.moveTo(10, 0);
       mouse.click();
     });
 
@@ -466,7 +473,7 @@ describe("aligning", () => {
     mouse.up(100, 100);
 
     // Add group to current selection
-    mouse.restorePosition(0, 0);
+    mouse.restorePosition(10, 0);
     Keyboard.withModifierKeys({ shift: true }, () => {
       mouse.click();
     });
@@ -482,6 +489,7 @@ describe("aligning", () => {
     // Select the nested group, the rectangle is already selected
     mouse.reset();
     Keyboard.withModifierKeys({ shift: true }, () => {
+      mouse.moveTo(10, 0);
       mouse.click();
     });
   };
@@ -581,4 +589,424 @@ describe("aligning", () => {
     expect(API.getSelectedElements()[2].x).toEqual(250);
     expect(API.getSelectedElements()[3].x).toEqual(150);
   });
+
+  const createGroupAndSelectInEditGroupMode = () => {
+    UI.clickTool("rectangle");
+    mouse.down();
+    mouse.up(100, 100);
+
+    UI.clickTool("rectangle");
+    mouse.down(0, 0);
+    mouse.up(100, 100);
+
+    // select the first element.
+    // The second rectangle is already reselected because it was the last element created
+    mouse.reset();
+    Keyboard.withModifierKeys({ shift: true }, () => {
+      mouse.moveTo(10, 0);
+      mouse.click();
+    });
+
+    API.executeAction(actionGroup);
+    mouse.reset();
+    mouse.moveTo(10, 0);
+    mouse.doubleClick();
+
+    Keyboard.withModifierKeys({ shift: true }, () => {
+      mouse.click();
+      mouse.moveTo(100, 100);
+      mouse.click();
+    });
+  };
+
+  it("aligns elements within a group while in group edit mode correctly to the top", () => {
+    createGroupAndSelectInEditGroupMode();
+
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(100);
+
+    API.executeAction(actionAlignTop);
+
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(0);
+  });
+  it("aligns elements within a group while in group edit mode correctly to the bottom", () => {
+    createGroupAndSelectInEditGroupMode();
+
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(100);
+
+    API.executeAction(actionAlignBottom);
+
+    expect(API.getSelectedElements()[0].y).toEqual(100);
+    expect(API.getSelectedElements()[1].y).toEqual(100);
+  });
+  it("aligns elements within a group while in group edit mode correctly to the left", () => {
+    createGroupAndSelectInEditGroupMode();
+
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(100);
+
+    API.executeAction(actionAlignLeft);
+
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(0);
+  });
+  it("aligns elements within a group while in group edit mode correctly to the right", () => {
+    createGroupAndSelectInEditGroupMode();
+
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(100);
+
+    API.executeAction(actionAlignRight);
+
+    expect(API.getSelectedElements()[0].x).toEqual(100);
+    expect(API.getSelectedElements()[1].x).toEqual(100);
+  });
+  it("aligns elements within a group while in group edit mode correctly to the vertical center", () => {
+    createGroupAndSelectInEditGroupMode();
+
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(100);
+
+    API.executeAction(actionAlignVerticallyCentered);
+
+    expect(API.getSelectedElements()[0].y).toEqual(50);
+    expect(API.getSelectedElements()[1].y).toEqual(50);
+  });
+  it("aligns elements within a group while in group edit mode correctly to the horizontal center", () => {
+    createGroupAndSelectInEditGroupMode();
+
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(100);
+
+    API.executeAction(actionAlignHorizontallyCentered);
+
+    expect(API.getSelectedElements()[0].x).toEqual(50);
+    expect(API.getSelectedElements()[1].x).toEqual(50);
+  });
+
+  const createNestedGroupAndSelectInEditGroupMode = () => {
+    UI.clickTool("rectangle");
+    mouse.down();
+    mouse.up(100, 100);
+
+    UI.clickTool("rectangle");
+    mouse.down(0, 0);
+    mouse.up(100, 100);
+
+    // Select the first element.
+    // The second rectangle is already reselected because it was the last element created
+    mouse.reset();
+    Keyboard.withModifierKeys({ shift: true }, () => {
+      mouse.moveTo(10, 0);
+      mouse.click();
+    });
+
+    API.executeAction(actionGroup);
+
+    mouse.reset();
+    mouse.moveTo(200, 200);
+    // create third element
+    UI.clickTool("rectangle");
+    mouse.down(0, 0);
+    mouse.up(100, 100);
+
+    // third element is already selected, select the initial group and group together
+    mouse.reset();
+
+    Keyboard.withModifierKeys({ shift: true }, () => {
+      mouse.moveTo(10, 0);
+      mouse.click();
+    });
+
+    API.executeAction(actionGroup);
+
+    // double click to enter edit mode
+    mouse.doubleClick();
+
+    // select nested group and other element within the group
+    Keyboard.withModifierKeys({ shift: true }, () => {
+      mouse.moveTo(200, 200);
+      mouse.click();
+    });
+  };
+
+  it("aligns element and nested group while in group edit mode correctly to the top", () => {
+    createNestedGroupAndSelectInEditGroupMode();
+
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(100);
+    expect(API.getSelectedElements()[2].y).toEqual(200);
+
+    API.executeAction(actionAlignTop);
+
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(100);
+    expect(API.getSelectedElements()[2].y).toEqual(0);
+  });
+  it("aligns element and nested group while in group edit mode correctly to the bottom", () => {
+    createNestedGroupAndSelectInEditGroupMode();
+
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(100);
+    expect(API.getSelectedElements()[2].y).toEqual(200);
+
+    API.executeAction(actionAlignBottom);
+
+    expect(API.getSelectedElements()[0].y).toEqual(100);
+    expect(API.getSelectedElements()[1].y).toEqual(200);
+    expect(API.getSelectedElements()[2].y).toEqual(200);
+  });
+  it("aligns element and nested group while in group edit mode correctly to the left", () => {
+    createNestedGroupAndSelectInEditGroupMode();
+
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(100);
+    expect(API.getSelectedElements()[2].x).toEqual(200);
+
+    API.executeAction(actionAlignLeft);
+
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(100);
+    expect(API.getSelectedElements()[2].x).toEqual(0);
+  });
+  it("aligns element and nested group while in group edit mode correctly to the right", () => {
+    createNestedGroupAndSelectInEditGroupMode();
+
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(100);
+    expect(API.getSelectedElements()[2].x).toEqual(200);
+
+    API.executeAction(actionAlignRight);
+
+    expect(API.getSelectedElements()[0].x).toEqual(100);
+    expect(API.getSelectedElements()[1].x).toEqual(200);
+    expect(API.getSelectedElements()[2].x).toEqual(200);
+  });
+  it("aligns element and nested group while in group edit mode correctly to the vertical center", () => {
+    createNestedGroupAndSelectInEditGroupMode();
+
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(100);
+    expect(API.getSelectedElements()[2].y).toEqual(200);
+
+    API.executeAction(actionAlignVerticallyCentered);
+
+    expect(API.getSelectedElements()[0].y).toEqual(50);
+    expect(API.getSelectedElements()[1].y).toEqual(150);
+    expect(API.getSelectedElements()[2].y).toEqual(100);
+  });
+  it("aligns elements and nested group within a group while in group edit mode correctly to the horizontal center", () => {
+    createNestedGroupAndSelectInEditGroupMode();
+
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(100);
+    expect(API.getSelectedElements()[2].x).toEqual(200);
+
+    API.executeAction(actionAlignHorizontallyCentered);
+
+    expect(API.getSelectedElements()[0].x).toEqual(50);
+    expect(API.getSelectedElements()[1].x).toEqual(150);
+    expect(API.getSelectedElements()[2].x).toEqual(100);
+  });
+
+  const createAndSelectSingleGroup = () => {
+    UI.clickTool("rectangle");
+    mouse.down();
+    mouse.up(100, 100);
+
+    UI.clickTool("rectangle");
+    mouse.down(0, 0);
+    mouse.up(100, 100);
+
+    // Select the first element.
+    // The second rectangle is already reselected because it was the last element created
+    mouse.reset();
+    Keyboard.withModifierKeys({ shift: true }, () => {
+      mouse.moveTo(10, 0);
+      mouse.click();
+    });
+
+    API.executeAction(actionGroup);
+  };
+
+  it("aligns elements within a single-selected group correctly to the top", () => {
+    createAndSelectSingleGroup();
+
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(100);
+
+    API.executeAction(actionAlignTop);
+
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(0);
+  });
+  it("aligns elements within a single-selected group correctly to the bottom", () => {
+    createAndSelectSingleGroup();
+
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(100);
+
+    API.executeAction(actionAlignBottom);
+
+    expect(API.getSelectedElements()[0].y).toEqual(100);
+    expect(API.getSelectedElements()[1].y).toEqual(100);
+  });
+  it("aligns elements within a single-selected group correctly to the left", () => {
+    createAndSelectSingleGroup();
+
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(100);
+
+    API.executeAction(actionAlignLeft);
+
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(0);
+  });
+  it("aligns elements within a single-selected group correctly to the right", () => {
+    createAndSelectSingleGroup();
+
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(100);
+
+    API.executeAction(actionAlignRight);
+
+    expect(API.getSelectedElements()[0].x).toEqual(100);
+    expect(API.getSelectedElements()[1].x).toEqual(100);
+  });
+  it("aligns elements within a single-selected group correctly to the vertical center", () => {
+    createAndSelectSingleGroup();
+
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(100);
+
+    API.executeAction(actionAlignVerticallyCentered);
+
+    expect(API.getSelectedElements()[0].y).toEqual(50);
+    expect(API.getSelectedElements()[1].y).toEqual(50);
+  });
+  it("aligns elements within a single-selected group correctly to the horizontal center", () => {
+    createAndSelectSingleGroup();
+
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(100);
+
+    API.executeAction(actionAlignHorizontallyCentered);
+
+    expect(API.getSelectedElements()[0].x).toEqual(50);
+    expect(API.getSelectedElements()[1].x).toEqual(50);
+  });
+
+  const createAndSelectSingleGroupWithNestedGroup = () => {
+    UI.clickTool("rectangle");
+    mouse.down();
+    mouse.up(100, 100);
+
+    UI.clickTool("rectangle");
+    mouse.down(0, 0);
+    mouse.up(100, 100);
+
+    // Select the first element.
+    // The second rectangle is already reselected because it was the last element created
+    mouse.reset();
+    Keyboard.withModifierKeys({ shift: true }, () => {
+      mouse.moveTo(10, 0);
+      mouse.click();
+    });
+
+    API.executeAction(actionGroup);
+
+    mouse.reset();
+    UI.clickTool("rectangle");
+    mouse.down(200, 200);
+    mouse.up(100, 100);
+
+    // Add group to current selection
+    mouse.restorePosition(10, 0);
+    Keyboard.withModifierKeys({ shift: true }, () => {
+      mouse.click();
+    });
+
+    // Create the nested group
+    API.executeAction(actionGroup);
+  };
+  it("aligns elements within a single-selected group containing a nested group correctly to the top", () => {
+    createAndSelectSingleGroupWithNestedGroup();
+
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(100);
+    expect(API.getSelectedElements()[2].y).toEqual(200);
+
+    API.executeAction(actionAlignTop);
+
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(100);
+    expect(API.getSelectedElements()[2].y).toEqual(0);
+  });
+  it("aligns elements within a single-selected group containing a nested group correctly to the bottom", () => {
+    createAndSelectSingleGroupWithNestedGroup();
+
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(100);
+    expect(API.getSelectedElements()[2].y).toEqual(200);
+
+    API.executeAction(actionAlignBottom);
+
+    expect(API.getSelectedElements()[0].y).toEqual(100);
+    expect(API.getSelectedElements()[1].y).toEqual(200);
+    expect(API.getSelectedElements()[2].y).toEqual(200);
+  });
+  it("aligns elements within a single-selected group containing a nested group correctly to the left", () => {
+    createAndSelectSingleGroupWithNestedGroup();
+
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(100);
+    expect(API.getSelectedElements()[2].x).toEqual(200);
+
+    API.executeAction(actionAlignLeft);
+
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(100);
+    expect(API.getSelectedElements()[2].x).toEqual(0);
+  });
+  it("aligns elements within a single-selected group containing a nested group correctly to the right", () => {
+    createAndSelectSingleGroupWithNestedGroup();
+
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(100);
+    expect(API.getSelectedElements()[2].x).toEqual(200);
+
+    API.executeAction(actionAlignRight);
+
+    expect(API.getSelectedElements()[0].x).toEqual(100);
+    expect(API.getSelectedElements()[1].x).toEqual(200);
+    expect(API.getSelectedElements()[2].x).toEqual(200);
+  });
+  it("aligns elements within a single-selected group containing a nested group correctly to the vertical center", () => {
+    createAndSelectSingleGroupWithNestedGroup();
+
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(100);
+    expect(API.getSelectedElements()[2].y).toEqual(200);
+
+    API.executeAction(actionAlignVerticallyCentered);
+
+    expect(API.getSelectedElements()[0].y).toEqual(50);
+    expect(API.getSelectedElements()[1].y).toEqual(150);
+    expect(API.getSelectedElements()[2].y).toEqual(100);
+  });
+  it("aligns elements within a single-selected group containing a nested group correctly to the horizontal center", () => {
+    createAndSelectSingleGroupWithNestedGroup();
+
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(100);
+    expect(API.getSelectedElements()[2].x).toEqual(200);
+
+    API.executeAction(actionAlignHorizontallyCentered);
+
+    expect(API.getSelectedElements()[0].x).toEqual(50);
+    expect(API.getSelectedElements()[1].x).toEqual(150);
+    expect(API.getSelectedElements()[2].x).toEqual(100);
+  });
 });

packages/element/tests/binding.test.tsx

@@ -11,6 +11,10 @@ import { UI, Pointer, Keyboard } from "@excalidraw/excalidraw/tests/helpers/ui";
 import { fireEvent, render } from "@excalidraw/excalidraw/tests/test-utils";
 
 import { getTransformHandles } from "../src/transformHandles";
+import {
+  getTextEditor,
+  TEXT_EDITOR_SELECTOR,
+} from "../../excalidraw/tests/queries/dom";
 
 const { h } = window;
 
@@ -151,10 +155,10 @@ describe("element binding", () => {
       // NOTE this mouse down/up + await needs to be done in order to repro
       // the issue, due to https://github.com/excalidraw/excalidraw/blob/46bff3daceb602accf60c40a84610797260fca94/src/components/App.tsx#L740
       mouse.reset();
-      expect(h.state.editingLinearElement).not.toBe(null);
+      expect(h.state.selectedLinearElement?.isEditing).toBe(true);
       mouse.down(0, 0);
       await new Promise((r) => setTimeout(r, 100));
-      expect(h.state.editingLinearElement).toBe(null);
+      expect(h.state.selectedLinearElement?.isEditing).toBe(false);
       expect(API.getSelectedElement().type).toBe("rectangle");
       mouse.up();
       expect(API.getSelectedElement().type).toBe("rectangle");
@@ -172,12 +176,12 @@ describe("element binding", () => {
     const arrow = UI.createElement("arrow", {
       x: 0,
       y: 0,
-      size: 50,
+      size: 49,
     });
 
     expect(arrow.endBinding).toBe(null);
 
-    mouse.downAt(50, 50);
+    mouse.downAt(49, 49);
     mouse.moveTo(51, 0);
     mouse.up(0, 0);
 
@@ -244,18 +248,12 @@ describe("element binding", () => {
 
     mouse.clickAt(text.x + 50, text.y + 50);
 
-    const editor = document.querySelector(
-      ".excalidraw-textEditorContainer > textarea",
-    ) as HTMLTextAreaElement;
-
-    expect(editor).not.toBe(null);
+    const editor = await getTextEditor();
 
     fireEvent.change(editor, { target: { value: "" } });
     fireEvent.keyDown(editor, { key: KEYS.ESCAPE });
 
-    expect(
-      document.querySelector(".excalidraw-textEditorContainer > textarea"),
-    ).toBe(null);
+    expect(document.querySelector(TEXT_EDITOR_SELECTOR)).toBe(null);
     expect(arrow.endBinding).toBe(null);
   });
 
@@ -285,18 +283,14 @@ describe("element binding", () => {
     UI.clickTool("text");
 
     mouse.clickAt(text.x + 50, text.y + 50);
-    const editor = document.querySelector(
-      ".excalidraw-textEditorContainer > textarea",
-    ) as HTMLTextAreaElement;
+    const editor = await getTextEditor();
 
     expect(editor).not.toBe(null);
 
     fireEvent.change(editor, { target: { value: "asdasdasdasdas" } });
     fireEvent.keyDown(editor, { key: KEYS.ESCAPE });
 
-    expect(
-      document.querySelector(".excalidraw-textEditorContainer > textarea"),
-    ).toBe(null);
+    expect(document.querySelector(TEXT_EDITOR_SELECTOR)).toBe(null);
     expect(arrow.endBinding?.elementId).toBe(text.id);
   });
 

packages/element/tests/collision.test.tsx

@@ -0,0 +1,38 @@
+import { type GlobalPoint, type LocalPoint, pointFrom } from "@excalidraw/math";
+import { Excalidraw } from "@excalidraw/excalidraw";
+import { UI } from "@excalidraw/excalidraw/tests/helpers/ui";
+import "@excalidraw/utils/test-utils";
+import { render } from "@excalidraw/excalidraw/tests/test-utils";
+
+import { hitElementItself } from "../src/collision";
+
+describe("check rotated elements can be hit:", () => {
+  beforeEach(async () => {
+    localStorage.clear();
+    await render(<Excalidraw handleKeyboardGlobally={true} />);
+  });
+
+  it("arrow", () => {
+    UI.createElement("arrow", {
+      x: 0,
+      y: 0,
+      width: 124,
+      height: 302,
+      angle: 1.8700426423973724,
+      points: [
+        [0, 0],
+        [120, -198],
+        [-4, -302],
+      ] as LocalPoint[],
+    });
+    //const p = [120, -211];
+    //const p = [0, 13];
+    const hit = hitElementItself({
+      point: pointFrom<GlobalPoint>(88, -68),
+      element: window.h.elements[0],
+      threshold: 10,
+      elementsMap: window.h.scene.getNonDeletedElementsMap(),
+    });
+    expect(hit).toBe(true);
+  });
+});

packages/element/tests/delta.test.tsx

@@ -16,6 +16,7 @@ describe("AppStateDelta", () => {
         editingGroupId: null,
         croppingElementId: null,
         editingLinearElementId: null,
+        selectedLinearElementIsEditing: null,
         lockedMultiSelections: {},
         activeLockedId: null,
       };
@@ -58,6 +59,7 @@ describe("AppStateDelta", () => {
         editingGroupId: null,
         croppingElementId: null,
         selectedLinearElementId: null,
+        selectedLinearElementIsEditing: null,
         editingLinearElementId: null,
         activeLockedId: null,
         lockedMultiSelections: {},
@@ -105,6 +107,7 @@ describe("AppStateDelta", () => {
         editingGroupId: null,
         croppingElementId: null,
         selectedLinearElementId: null,
+        selectedLinearElementIsEditing: null,
         editingLinearElementId: null,
         activeLockedId: null,
         lockedMultiSelections: {},

packages/element/tests/distribute.test.tsx

@@ -0,0 +1,128 @@
+import {
+  distributeHorizontally,
+  distributeVertically,
+} from "@excalidraw/excalidraw/actions";
+import { defaultLang, setLanguage } from "@excalidraw/excalidraw/i18n";
+import { Excalidraw } from "@excalidraw/excalidraw";
+
+import { API } from "@excalidraw/excalidraw/tests/helpers/api";
+import { UI, Pointer, Keyboard } from "@excalidraw/excalidraw/tests/helpers/ui";
+import {
+  act,
+  unmountComponent,
+  render,
+} from "@excalidraw/excalidraw/tests/test-utils";
+
+const mouse = new Pointer("mouse");
+
+// Scenario: three rectangles that will be distributed with gaps
+const createAndSelectThreeRectanglesWithGap = () => {
+  UI.clickTool("rectangle");
+  mouse.down();
+  mouse.up(100, 100);
+  mouse.reset();
+
+  UI.clickTool("rectangle");
+  mouse.down(10, 10);
+  mouse.up(100, 100);
+  mouse.reset();
+
+  UI.clickTool("rectangle");
+  mouse.down(300, 300);
+  mouse.up(100, 100);
+  mouse.reset();
+
+  // Last rectangle is selected by default
+  Keyboard.withModifierKeys({ shift: true }, () => {
+    mouse.click(0, 10);
+    mouse.click(10, 0);
+  });
+};
+
+// Scenario: three rectangles that will be distributed by their centers
+const createAndSelectThreeRectanglesWithoutGap = () => {
+  UI.clickTool("rectangle");
+  mouse.down();
+  mouse.up(100, 100);
+  mouse.reset();
+
+  UI.clickTool("rectangle");
+  mouse.down(10, 10);
+  mouse.up(200, 200);
+  mouse.reset();
+
+  UI.clickTool("rectangle");
+  mouse.down(200, 200);
+  mouse.up(100, 100);
+  mouse.reset();
+
+  // Last rectangle is selected by default
+  Keyboard.withModifierKeys({ shift: true }, () => {
+    mouse.click(0, 10);
+    mouse.click(10, 0);
+  });
+};
+
+describe("distributing", () => {
+  beforeEach(async () => {
+    unmountComponent();
+    mouse.reset();
+
+    await act(() => {
+      return setLanguage(defaultLang);
+    });
+    await render(<Excalidraw handleKeyboardGlobally={true} />);
+  });
+
+  it("should distribute selected elements horizontally", async () => {
+    createAndSelectThreeRectanglesWithGap();
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(10);
+    expect(API.getSelectedElements()[2].x).toEqual(300);
+
+    API.executeAction(distributeHorizontally);
+
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(150);
+    expect(API.getSelectedElements()[2].x).toEqual(300);
+  });
+
+  it("should distribute selected elements vertically", async () => {
+    createAndSelectThreeRectanglesWithGap();
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(10);
+    expect(API.getSelectedElements()[2].y).toEqual(300);
+
+    API.executeAction(distributeVertically);
+
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(150);
+    expect(API.getSelectedElements()[2].y).toEqual(300);
+  });
+
+  it("should distribute selected elements horizontally based on their centers", async () => {
+    createAndSelectThreeRectanglesWithoutGap();
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(10);
+    expect(API.getSelectedElements()[2].x).toEqual(200);
+
+    API.executeAction(distributeHorizontally);
+
+    expect(API.getSelectedElements()[0].x).toEqual(0);
+    expect(API.getSelectedElements()[1].x).toEqual(50);
+    expect(API.getSelectedElements()[2].x).toEqual(200);
+  });
+
+  it("should distribute selected elements vertically with based on their centers", async () => {
+    createAndSelectThreeRectanglesWithoutGap();
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(10);
+    expect(API.getSelectedElements()[2].y).toEqual(200);
+
+    API.executeAction(distributeVertically);
+
+    expect(API.getSelectedElements()[0].y).toEqual(0);
+    expect(API.getSelectedElements()[1].y).toEqual(50);
+    expect(API.getSelectedElements()[2].y).toEqual(200);
+  });
+});

packages/element/tests/duplicate.test.tsx

@@ -505,8 +505,6 @@ describe("group-related duplication", () => {
       mouse.up(frame.x + frame.width + 50, frame.y + frame.height + 50);
     });
 
-    // console.log(h.elements);
-
     assertElements(h.elements, [
       { id: frame.id },
       { id: rectangle1.id, frameId: frame.id },

packages/element/tests/embeddable.test.ts

@@ -0,0 +1,153 @@
+import { getEmbedLink } from "../src/embeddable";
+
+describe("YouTube timestamp parsing", () => {
+  it("should parse YouTube URLs with timestamp in seconds", () => {
+    const testCases = [
+      {
+        url: "https://www.youtube.com/watch?v=dQw4w9WgXcQ&t=90",
+        expectedStart: 90,
+      },
+      {
+        url: "https://youtu.be/dQw4w9WgXcQ?t=120",
+        expectedStart: 120,
+      },
+      {
+        url: "https://www.youtube.com/watch?v=dQw4w9WgXcQ&start=150",
+        expectedStart: 150,
+      },
+    ];
+
+    testCases.forEach(({ url, expectedStart }) => {
+      const result = getEmbedLink(url);
+      expect(result).toBeTruthy();
+      expect(result?.type).toBe("video");
+      if (result?.type === "video" || result?.type === "generic") {
+        expect(result.link).toContain(`start=${expectedStart}`);
+      }
+    });
+  });
+
+  it("should parse YouTube URLs with timestamp in time format", () => {
+    const testCases = [
+      {
+        url: "https://www.youtube.com/watch?v=dQw4w9WgXcQ&t=1m30s",
+        expectedStart: 90, // 1*60 + 30
+      },
+      {
+        url: "https://youtu.be/dQw4w9WgXcQ?t=2m45s",
+        expectedStart: 165, // 2*60 + 45
+      },
+      {
+        url: "https://www.youtube.com/watch?v=dQw4w9WgXcQ&t=1h2m3s",
+        expectedStart: 3723, // 1*3600 + 2*60 + 3
+      },
+      {
+        url: "https://www.youtube.com/watch?v=dQw4w9WgXcQ&t=45s",
+        expectedStart: 45,
+      },
+      {
+        url: "https://www.youtube.com/watch?v=dQw4w9WgXcQ&t=5m",
+        expectedStart: 300, // 5*60
+      },
+      {
+        url: "https://www.youtube.com/watch?v=dQw4w9WgXcQ&t=2h",
+        expectedStart: 7200, // 2*3600
+      },
+    ];
+
+    testCases.forEach(({ url, expectedStart }) => {
+      const result = getEmbedLink(url);
+      expect(result).toBeTruthy();
+      expect(result?.type).toBe("video");
+      if (result?.type === "video" || result?.type === "generic") {
+        expect(result.link).toContain(`start=${expectedStart}`);
+      }
+    });
+  });
+
+  it("should handle YouTube URLs without timestamps", () => {
+    const testCases = [
+      "https://www.youtube.com/watch?v=dQw4w9WgXcQ",
+      "https://youtu.be/dQw4w9WgXcQ",
+      "https://www.youtube.com/embed/dQw4w9WgXcQ",
+    ];
+
+    testCases.forEach((url) => {
+      const result = getEmbedLink(url);
+      expect(result).toBeTruthy();
+      expect(result?.type).toBe("video");
+      if (result?.type === "video" || result?.type === "generic") {
+        expect(result.link).not.toContain("start=");
+      }
+    });
+  });
+
+  it("should handle YouTube shorts URLs with timestamps", () => {
+    const url = "https://www.youtube.com/shorts/dQw4w9WgXcQ?t=30";
+    const result = getEmbedLink(url);
+
+    expect(result).toBeTruthy();
+    expect(result?.type).toBe("video");
+    if (result?.type === "video" || result?.type === "generic") {
+      expect(result.link).toContain("start=30");
+    }
+    // Shorts should have portrait aspect ratio
+    expect(result?.intrinsicSize).toEqual({ w: 315, h: 560 });
+  });
+
+  it("should handle playlist URLs with timestamps", () => {
+    const url =
+      "https://www.youtube.com/playlist?list=PLrAXtmRdnEQy1KbG5lbfgQ0-PKQY6FKYZ&t=60";
+    const result = getEmbedLink(url);
+
+    expect(result).toBeTruthy();
+    expect(result?.type).toBe("video");
+    if (result?.type === "video" || result?.type === "generic") {
+      expect(result.link).toContain("start=60");
+      expect(result.link).toContain("list=PLrAXtmRdnEQy1KbG5lbfgQ0-PKQY6FKYZ");
+    }
+  });
+
+  it("should handle malformed or edge case timestamps", () => {
+    const testCases = [
+      {
+        url: "https://www.youtube.com/watch?v=dQw4w9WgXcQ&t=abc",
+        expectedStart: 0, // Invalid timestamp should default to 0
+      },
+      {
+        url: "https://www.youtube.com/watch?v=dQw4w9WgXcQ&t=",
+        expectedStart: 0, // Empty timestamp should default to 0
+      },
+      {
+        url: "https://www.youtube.com/watch?v=dQw4w9WgXcQ&t=0",
+        expectedStart: 0, // Zero timestamp should be handled
+      },
+    ];
+
+    testCases.forEach(({ url, expectedStart }) => {
+      const result = getEmbedLink(url);
+      expect(result).toBeTruthy();
+      expect(result?.type).toBe("video");
+      if (result?.type === "video" || result?.type === "generic") {
+        if (expectedStart === 0) {
+          expect(result.link).not.toContain("start=");
+        } else {
+          expect(result.link).toContain(`start=${expectedStart}`);
+        }
+      }
+    });
+  });
+
+  it("should preserve other URL parameters", () => {
+    const url =
+      "https://www.youtube.com/watch?v=dQw4w9WgXcQ&t=90&feature=youtu.be&list=PLtest";
+    const result = getEmbedLink(url);
+
+    expect(result).toBeTruthy();
+    expect(result?.type).toBe("video");
+    if (result?.type === "video" || result?.type === "generic") {
+      expect(result.link).toContain("start=90");
+      expect(result.link).toContain("enablejsapi=1");
+    }
+  });
+});

packages/element/tests/linearElementEditor.test.tsx

@@ -1,6 +1,5 @@
 import { pointCenter, pointFrom } from "@excalidraw/math";
 import { act, queryByTestId, queryByText } from "@testing-library/react";
-import React from "react";
 import { vi } from "vitest";
 
 import {
@@ -33,6 +32,11 @@ import { getBoundTextElementPosition, getBoundTextMaxWidth } from "../src";
 import { LinearElementEditor } from "../src";
 import { newArrowElement } from "../src";
 
+import {
+  getTextEditor,
+  TEXT_EDITOR_SELECTOR,
+} from "../../excalidraw/tests/queries/dom";
+
 import type {
   ExcalidrawElement,
   ExcalidrawLinearElement,
@@ -132,7 +136,8 @@ describe("Test Linear Elements", () => {
     Keyboard.withModifierKeys({ ctrl: true }, () => {
       Keyboard.keyPress(KEYS.ENTER);
     });
-    expect(h.state.editingLinearElement?.elementId).toEqual(line.id);
+    expect(h.state.selectedLinearElement?.isEditing).toBe(true);
+    expect(h.state.selectedLinearElement?.elementId).toEqual(line.id);
   };
 
   const drag = (startPoint: GlobalPoint, endPoint: GlobalPoint) => {
@@ -249,17 +254,99 @@ describe("Test Linear Elements", () => {
     });
     fireEvent.click(queryByText(contextMenu as HTMLElement, "Edit line")!);
 
-    expect(h.state.editingLinearElement?.elementId).toEqual(h.elements[0].id);
+    expect(h.state.selectedLinearElement?.isEditing).toBe(true);
+    expect(h.state.selectedLinearElement?.elementId).toEqual(h.elements[0].id);
   });
 
-  it("should enter line editor when using double clicked with ctrl key", () => {
+  it("should enter line editor via enter (line)", () => {
     createTwoPointerLinearElement("line");
-    expect(h.state.editingLinearElement?.elementId).toBeUndefined();
+    expect(h.state.selectedLinearElement?.isEditing).toBe(false);
+
+    mouse.clickAt(midpoint[0], midpoint[1]);
+    Keyboard.keyPress(KEYS.ENTER);
+    expect(h.state.selectedLinearElement?.isEditing).toBe(true);
+    expect(h.state.selectedLinearElement?.elementId).toEqual(h.elements[0].id);
+  });
+
+  // ctrl+enter alias (to align with arrows)
+  it("should enter line editor via ctrl+enter (line)", () => {
+    createTwoPointerLinearElement("line");
+    expect(h.state.selectedLinearElement?.isEditing).toBe(false);
+
+    mouse.clickAt(midpoint[0], midpoint[1]);
+    Keyboard.withModifierKeys({ ctrl: true }, () => {
+      Keyboard.keyPress(KEYS.ENTER);
+    });
+    expect(h.state.selectedLinearElement?.isEditing).toBe(true);
+    expect(h.state.selectedLinearElement?.elementId).toEqual(h.elements[0].id);
+  });
+
+  it("should enter line editor via ctrl+enter (arrow)", () => {
+    createTwoPointerLinearElement("arrow");
+    expect(h.state.selectedLinearElement?.isEditing).toBe(false);
+
+    mouse.clickAt(midpoint[0], midpoint[1]);
+    Keyboard.withModifierKeys({ ctrl: true }, () => {
+      Keyboard.keyPress(KEYS.ENTER);
+    });
+    expect(h.state.selectedLinearElement?.isEditing).toBe(true);
+    expect(h.state.selectedLinearElement?.elementId).toEqual(h.elements[0].id);
+  });
+
+  it("should enter line editor on ctrl+dblclick (simple arrow)", () => {
+    createTwoPointerLinearElement("arrow");
+    expect(h.state.selectedLinearElement?.isEditing).toBe(false);
 
     Keyboard.withModifierKeys({ ctrl: true }, () => {
       mouse.doubleClick();
     });
-    expect(h.state.editingLinearElement?.elementId).toEqual(h.elements[0].id);
+    expect(h.state.selectedLinearElement?.isEditing).toBe(true);
+    expect(h.state.selectedLinearElement?.elementId).toEqual(h.elements[0].id);
+  });
+
+  it("should enter line editor on ctrl+dblclick (line)", () => {
+    createTwoPointerLinearElement("line");
+    expect(h.state.selectedLinearElement?.isEditing).toBe(false);
+
+    Keyboard.withModifierKeys({ ctrl: true }, () => {
+      mouse.doubleClick();
+    });
+    expect(h.state.selectedLinearElement?.isEditing).toBe(true);
+    expect(h.state.selectedLinearElement?.elementId).toEqual(h.elements[0].id);
+  });
+
+  it("should enter line editor on dblclick (line)", () => {
+    createTwoPointerLinearElement("line");
+    expect(h.state.selectedLinearElement?.isEditing).toBe(false);
+
+    mouse.doubleClick();
+    expect(h.state.selectedLinearElement?.isEditing).toBe(true);
+    expect(h.state.selectedLinearElement?.elementId).toEqual(h.elements[0].id);
+  });
+
+  it("should not enter line editor on dblclick (arrow)", async () => {
+    createTwoPointerLinearElement("arrow");
+    expect(h.state.selectedLinearElement?.isEditing).toBe(false);
+
+    mouse.doubleClick();
+    expect(h.state.selectedLinearElement).toBe(null);
+    await getTextEditor();
+  });
+
+  it("shouldn't create text element on double click in line editor (arrow)", async () => {
+    createTwoPointerLinearElement("arrow");
+    const arrow = h.elements[0] as ExcalidrawLinearElement;
+    enterLineEditingMode(arrow);
+
+    expect(h.state.selectedLinearElement?.isEditing).toBe(true);
+    expect(h.state.selectedLinearElement?.elementId).toEqual(arrow.id);
+
+    mouse.doubleClick();
+    expect(h.state.selectedLinearElement?.isEditing).toBe(true);
+    expect(h.state.selectedLinearElement?.elementId).toEqual(arrow.id);
+    expect(h.elements.length).toEqual(1);
+
+    expect(document.querySelector(TEXT_EDITOR_SELECTOR)).toBe(null);
   });
 
   describe("Inside editor", () => {
@@ -290,7 +377,7 @@ describe("Test Linear Elements", () => {
       // drag line from midpoint
       drag(midpoint, pointFrom(midpoint[0] + delta, midpoint[1] + delta));
       expect(renderInteractiveScene.mock.calls.length).toMatchInlineSnapshot(
-        `12`,
+        `11`,
       );
       expect(renderStaticScene.mock.calls.length).toMatchInlineSnapshot(`6`);
 
@@ -346,12 +433,12 @@ describe("Test Linear Elements", () => {
       expect(midPointsWithRoundEdge).toMatchInlineSnapshot(`
         [
           [
-            "55.96978",
-            "47.44233",
+            "54.27552",
+            "46.16120",
           ],
           [
-            "76.08587",
-            "43.29417",
+            "76.95494",
+            "44.56052",
           ],
         ]
       `);
@@ -392,7 +479,7 @@ describe("Test Linear Elements", () => {
       drag(startPoint, endPoint);
 
       expect(renderInteractiveScene.mock.calls.length).toMatchInlineSnapshot(
-        `12`,
+        `11`,
       );
       expect(renderStaticScene.mock.calls.length).toMatchInlineSnapshot(`7`);
 
@@ -411,12 +498,12 @@ describe("Test Linear Elements", () => {
       expect(newMidPoints).toMatchInlineSnapshot(`
         [
           [
-            "105.96978",
-            "67.44233",
+            "104.27552",
+            "66.16120",
           ],
           [
-            "126.08587",
-            "63.29417",
+            "126.95494",
+            "64.56052",
           ],
         ]
       `);
@@ -460,7 +547,7 @@ describe("Test Linear Elements", () => {
         );
 
         expect(renderInteractiveScene.mock.calls.length).toMatchInlineSnapshot(
-          `16`,
+          `14`,
         );
         expect(renderStaticScene.mock.calls.length).toMatchInlineSnapshot(`7`);
 
@@ -511,7 +598,7 @@ describe("Test Linear Elements", () => {
         drag(hitCoords, pointFrom(hitCoords[0] - delta, hitCoords[1] - delta));
 
         expect(renderInteractiveScene.mock.calls.length).toMatchInlineSnapshot(
-          `12`,
+          `11`,
         );
         expect(renderStaticScene.mock.calls.length).toMatchInlineSnapshot(`6`);
 
@@ -552,7 +639,7 @@ describe("Test Linear Elements", () => {
         drag(hitCoords, pointFrom(hitCoords[0] + delta, hitCoords[1] + delta));
 
         expect(renderInteractiveScene.mock.calls.length).toMatchInlineSnapshot(
-          `12`,
+          `11`,
         );
         expect(renderStaticScene.mock.calls.length).toMatchInlineSnapshot(`6`);
 
@@ -600,7 +687,7 @@ describe("Test Linear Elements", () => {
         deletePoint(points[2]);
         expect(line.points.length).toEqual(3);
         expect(renderInteractiveScene.mock.calls.length).toMatchInlineSnapshot(
-          `18`,
+          `17`,
         );
         expect(renderStaticScene.mock.calls.length).toMatchInlineSnapshot(`7`);
 
@@ -658,7 +745,7 @@ describe("Test Linear Elements", () => {
           ),
         );
         expect(renderInteractiveScene.mock.calls.length).toMatchInlineSnapshot(
-          `16`,
+          `14`,
         );
         expect(renderStaticScene.mock.calls.length).toMatchInlineSnapshot(`7`);
         expect(line.points.length).toEqual(5);
@@ -727,12 +814,12 @@ describe("Test Linear Elements", () => {
         expect(newMidPoints).toMatchInlineSnapshot(`
           [
             [
-              "31.88408",
-              "23.13276",
+              "29.28349",
+              "20.91105",
             ],
             [
-              "77.74793",
-              "44.57841",
+              "78.86048",
+              "46.12277",
             ],
           ]
         `);
@@ -756,7 +843,7 @@ describe("Test Linear Elements", () => {
         drag(hitCoords, pointFrom(hitCoords[0] + delta, hitCoords[1] + delta));
 
         expect(renderInteractiveScene.mock.calls.length).toMatchInlineSnapshot(
-          `12`,
+          `11`,
         );
         expect(renderStaticScene.mock.calls.length).toMatchInlineSnapshot(`6`);
 
@@ -816,12 +903,12 @@ describe("Test Linear Elements", () => {
         expect(newMidPoints).toMatchInlineSnapshot(`
           [
             [
-              "55.96978",
-              "47.44233",
+              "54.27552",
+              "46.16120",
             ],
             [
-              "76.08587",
-              "43.29417",
+              "76.95494",
+              "44.56052",
             ],
           ]
         `);
@@ -983,19 +1070,17 @@ describe("Test Linear Elements", () => {
         );
         expect(position).toMatchInlineSnapshot(`
           {
-            "x": "85.82202",
-            "y": "75.63461",
+            "x": "86.17305",
+            "y": "76.11251",
           }
         `);
       });
     });
 
-    it("should match styles for text editor", () => {
+    it("should match styles for text editor", async () => {
       createTwoPointerLinearElement("arrow");
       Keyboard.keyPress(KEYS.ENTER);
-      const editor = document.querySelector(
-        ".excalidraw-textEditorContainer > textarea",
-      ) as HTMLTextAreaElement;
+      const editor = await getTextEditor();
       expect(editor).toMatchSnapshot();
     });
 
@@ -1012,9 +1097,7 @@ describe("Test Linear Elements", () => {
       expect(text.type).toBe("text");
       expect(text.containerId).toBe(arrow.id);
       mouse.down();
-      const editor = document.querySelector(
-        ".excalidraw-textEditorContainer > textarea",
-      ) as HTMLTextAreaElement;
+      const editor = await getTextEditor();
 
       fireEvent.change(editor, {
         target: { value: DEFAULT_TEXT },
@@ -1042,9 +1125,7 @@ describe("Test Linear Elements", () => {
       const textElement = h.elements[1] as ExcalidrawTextElementWithContainer;
       expect(textElement.type).toBe("text");
       expect(textElement.containerId).toBe(arrow.id);
-      const editor = document.querySelector(
-        ".excalidraw-textEditorContainer > textarea",
-      ) as HTMLTextAreaElement;
+      const editor = await getTextEditor();
 
       fireEvent.change(editor, {
         target: { value: DEFAULT_TEXT },
@@ -1063,13 +1144,7 @@ describe("Test Linear Elements", () => {
 
       expect(h.elements.length).toBe(1);
       mouse.doubleClickAt(line.x, line.y);
-
-      expect(h.elements.length).toBe(2);
-
-      const text = h.elements[1] as ExcalidrawTextElementWithContainer;
-      expect(text.type).toBe("text");
-      expect(text.containerId).toBeNull();
-      expect(line.boundElements).toBeNull();
+      expect(h.elements.length).toBe(1);
     });
 
     // TODO fix #7029 and rewrite this test
@@ -1234,9 +1309,7 @@ describe("Test Linear Elements", () => {
 
       mouse.select(arrow);
       Keyboard.keyPress(KEYS.ENTER);
-      const editor = document.querySelector(
-        ".excalidraw-textEditorContainer > textarea",
-      ) as HTMLTextAreaElement;
+      const editor = await getTextEditor();
       fireEvent.change(editor, { target: { value: DEFAULT_TEXT } });
       Keyboard.exitTextEditor(editor);
 
@@ -1262,7 +1335,7 @@ describe("Test Linear Elements", () => {
       mouse.downAt(rect.x, rect.y);
       mouse.moveTo(200, 0);
       mouse.upAt(200, 0);
-      expect(arrow.width).toBeCloseTo(204, 0);
+      expect(arrow.width).toBeCloseTo(200, 0);
       expect(rect.x).toBe(200);
       expect(rect.y).toBe(0);
       expect(handleBindTextResizeSpy).toHaveBeenCalledWith(
@@ -1411,5 +1484,55 @@ describe("Test Linear Elements", () => {
       expect(line.points[line.points.length - 1][0]).toBe(20);
       expect(line.points[line.points.length - 1][1]).toBe(-20);
     });
+
+    it("should preserve original angle when dragging endpoint with SHIFT key", () => {
+      createTwoPointerLinearElement("line");
+      const line = h.elements[0] as ExcalidrawLinearElement;
+      enterLineEditingMode(line);
+
+      const elementsMap = arrayToMap(h.elements);
+      const points = LinearElementEditor.getPointsGlobalCoordinates(
+        line,
+        elementsMap,
+      );
+
+      // Calculate original angle between first and last point
+      const originalAngle = Math.atan2(
+        points[1][1] - points[0][1],
+        points[1][0] - points[0][0],
+      );
+
+      // Drag the second point (endpoint) with SHIFT key pressed
+      const startPoint = pointFrom<GlobalPoint>(points[1][0], points[1][1]);
+      const endPoint = pointFrom<GlobalPoint>(
+        startPoint[0] + 4,
+        startPoint[1] + 4,
+      );
+
+      // Perform drag with SHIFT key modifier
+      Keyboard.withModifierKeys({ shift: true }, () => {
+        mouse.downAt(startPoint[0], startPoint[1]);
+        mouse.moveTo(endPoint[0], endPoint[1]);
+        mouse.upAt(endPoint[0], endPoint[1]);
+      });
+
+      // Get updated points after drag
+      const updatedPoints = LinearElementEditor.getPointsGlobalCoordinates(
+        line,
+        elementsMap,
+      );
+
+      // Calculate new angle
+      const newAngle = Math.atan2(
+        updatedPoints[1][1] - updatedPoints[0][1],
+        updatedPoints[1][0] - updatedPoints[0][0],
+      );
+
+      // The angle should be preserved (within a small tolerance for floating point precision)
+      const angleDifference = Math.abs(newAngle - originalAngle);
+      const tolerance = 0.01; // Small tolerance for floating point precision
+
+      expect(angleDifference).toBeLessThan(tolerance);
+    });
   });
 });

packages/element/tests/resize.test.tsx

@@ -510,12 +510,12 @@ describe("arrow element", () => {
       h.state,
     )[0] as ExcalidrawElbowArrowElement;
 
-    expect(arrow.startBinding?.fixedPoint?.[0]).toBeCloseTo(1);
+    expect(arrow.startBinding?.fixedPoint?.[0]).toBeCloseTo(1.05);
     expect(arrow.startBinding?.fixedPoint?.[1]).toBeCloseTo(0.75);
 
     UI.resize(rectangle, "se", [-200, -150]);
 
-    expect(arrow.startBinding?.fixedPoint?.[0]).toBeCloseTo(1);
+    expect(arrow.startBinding?.fixedPoint?.[0]).toBeCloseTo(1.05);
     expect(arrow.startBinding?.fixedPoint?.[1]).toBeCloseTo(0.75);
   });
 
@@ -538,11 +538,11 @@ describe("arrow element", () => {
       h.state,
     )[0] as ExcalidrawElbowArrowElement;
 
-    expect(arrow.startBinding?.fixedPoint?.[0]).toBeCloseTo(1);
+    expect(arrow.startBinding?.fixedPoint?.[0]).toBeCloseTo(1.05);
     expect(arrow.startBinding?.fixedPoint?.[1]).toBeCloseTo(0.75);
 
     UI.resize([rectangle, arrow], "nw", [300, 350]);
-    expect(arrow.startBinding?.fixedPoint?.[0]).toBeCloseTo(0);
+    expect(arrow.startBinding?.fixedPoint?.[0]).toBeCloseTo(-0.05);
     expect(arrow.startBinding?.fixedPoint?.[1]).toBeCloseTo(0.25);
   });
 });
@@ -819,7 +819,7 @@ describe("image element", () => {
 
     UI.resize(image, "ne", [40, 0]);
 
-    expect(arrow.width + arrow.endBinding!.gap).toBeCloseTo(31, 0);
+    expect(arrow.width + arrow.endBinding!.gap).toBeCloseTo(30, 0);
 
     const imageWidth = image.width;
     const scale = 20 / image.height;
@@ -1033,7 +1033,7 @@ describe("multiple selection", () => {
 
     expect(leftBoundArrow.x).toBeCloseTo(-110);
     expect(leftBoundArrow.y).toBeCloseTo(50);
-    expect(leftBoundArrow.width).toBeCloseTo(143, 0);
+    expect(leftBoundArrow.width).toBeCloseTo(140, 0);
     expect(leftBoundArrow.height).toBeCloseTo(7, 0);
     expect(leftBoundArrow.angle).toEqual(0);
     expect(leftBoundArrow.startBinding).toBeNull();

packages/element/tests/sizeHelpers.test.ts

@@ -1,7 +1,5 @@
 import { vi } from "vitest";
 
-import * as constants from "@excalidraw/common";
-
 import { getPerfectElementSize } from "../src/sizeHelpers";
 
 const EPSILON_DIGITS = 3;
@@ -57,13 +55,4 @@ describe("getPerfectElementSize", () => {
     expect(width).toBeCloseTo(0, EPSILON_DIGITS);
     expect(height).toBeCloseTo(0, EPSILON_DIGITS);
   });
-
-  describe("should respond to SHIFT_LOCKING_ANGLE constant", () => {
-    it("should have only 2 locking angles per section if SHIFT_LOCKING_ANGLE = 45 deg (Math.PI/4)", () => {
-      (constants as any).SHIFT_LOCKING_ANGLE = Math.PI / 4;
-      const { height, width } = getPerfectElementSize("arrow", 120, 185);
-      expect(width).toBeCloseTo(120, EPSILON_DIGITS);
-      expect(height).toBeCloseTo(120, EPSILON_DIGITS);
-    });
-  });
 });

packages/excalidraw/actions/actionAlign.tsx

@@ -10,6 +10,8 @@ import { alignElements } from "@excalidraw/element";
 
 import { CaptureUpdateAction } from "@excalidraw/element";
 
+import { getSelectedElementsByGroup } from "@excalidraw/element";
+
 import type { ExcalidrawElement } from "@excalidraw/element/types";
 
 import type { Alignment } from "@excalidraw/element";
@@ -38,7 +40,11 @@ export const alignActionsPredicate = (
 ) => {
   const selectedElements = app.scene.getSelectedElements(appState);
   return (
-    selectedElements.length > 1 &&
+    getSelectedElementsByGroup(
+      selectedElements,
+      app.scene.getNonDeletedElementsMap(),
+      appState as Readonly<AppState>,
+    ).length > 1 &&
     // TODO enable aligning frames when implemented properly
     !selectedElements.some((el) => isFrameLikeElement(el))
   );
@@ -52,7 +58,12 @@ const alignSelectedElements = (
 ) => {
   const selectedElements = app.scene.getSelectedElements(appState);
 
-  const updatedElements = alignElements(selectedElements, alignment, app.scene);
+  const updatedElements = alignElements(
+    selectedElements,
+    alignment,
+    app.scene,
+    appState,
+  );
 
   const updatedElementsMap = arrayToMap(updatedElements);
 

packages/excalidraw/actions/actionDeleteSelected.tsx

@@ -205,16 +205,19 @@ export const actionDeleteSelected = register({
   icon: TrashIcon,
   trackEvent: { category: "element", action: "delete" },
   perform: (elements, appState, formData, app) => {
-    if (appState.editingLinearElement) {
+    if (appState.selectedLinearElement?.isEditing) {
       const {
         elementId,
         selectedPointsIndices,
         startBindingElement,
         endBindingElement,
-      } = appState.editingLinearElement;
+      } = appState.selectedLinearElement;
       const elementsMap = app.scene.getNonDeletedElementsMap();
-      const element = LinearElementEditor.getElement(elementId, elementsMap);
-      if (!element) {
+      const linearElement = LinearElementEditor.getElement(
+        elementId,
+        elementsMap,
+      );
+      if (!linearElement) {
         return false;
       }
       // case: no point selected → do nothing, as deleting the whole element
@@ -225,10 +228,10 @@ export const actionDeleteSelected = register({
         return false;
       }
 
-      // case: deleting last remaining point
-      if (element.points.length < 2) {
+      // case: deleting all points
+      if (selectedPointsIndices.length >= linearElement.points.length) {
         const nextElements = elements.map((el) => {
-          if (el.id === element.id) {
+          if (el.id === linearElement.id) {
             return newElementWith(el, { isDeleted: true });
           }
           return el;
@@ -239,7 +242,7 @@ export const actionDeleteSelected = register({
           elements: nextElements,
           appState: {
             ...nextAppState,
-            editingLinearElement: null,
+            selectedLinearElement: null,
           },
           captureUpdate: CaptureUpdateAction.IMMEDIATELY,
         };
@@ -252,15 +255,15 @@ export const actionDeleteSelected = register({
           ? null
           : startBindingElement,
         endBindingElement: selectedPointsIndices?.includes(
-          element.points.length - 1,
+          linearElement.points.length - 1,
         )
           ? null
           : endBindingElement,
       };
 
       LinearElementEditor.deletePoints(
-        element,
-        app.scene,
+        linearElement,
+        app,
         selectedPointsIndices,
       );
 
@@ -268,8 +271,8 @@ export const actionDeleteSelected = register({
         elements,
         appState: {
           ...appState,
-          editingLinearElement: {
-            ...appState.editingLinearElement,
+          selectedLinearElement: {
+            ...appState.selectedLinearElement,
             ...binding,
             selectedPointsIndices:
               selectedPointsIndices?.[0] > 0

packages/excalidraw/actions/actionDistribute.tsx

@@ -10,6 +10,8 @@ import { distributeElements } from "@excalidraw/element";
 
 import { CaptureUpdateAction } from "@excalidraw/element";
 
+import { getSelectedElementsByGroup } from "@excalidraw/element";
+
 import type { ExcalidrawElement } from "@excalidraw/element/types";
 
 import type { Distribution } from "@excalidraw/element";
@@ -31,7 +33,11 @@ import type { AppClassProperties, AppState } from "../types";
 const enableActionGroup = (appState: AppState, app: AppClassProperties) => {
   const selectedElements = app.scene.getSelectedElements(appState);
   return (
-    selectedElements.length > 1 &&
+    getSelectedElementsByGroup(
+      selectedElements,
+      app.scene.getNonDeletedElementsMap(),
+      appState as Readonly<AppState>,
+    ).length > 2 &&
     // TODO enable distributing frames when implemented properly
     !selectedElements.some((el) => isFrameLikeElement(el))
   );
@@ -49,6 +55,7 @@ const distributeSelectedElements = (
     selectedElements,
     app.scene.getNonDeletedElementsMap(),
     distribution,
+    appState,
   );
 
   const updatedElementsMap = arrayToMap(updatedElements);

packages/excalidraw/actions/actionDuplicateSelection.tsx

@@ -39,7 +39,7 @@ export const actionDuplicateSelection = register({
     }
 
     // duplicate selected point(s) if editing a line
-    if (appState.editingLinearElement) {
+    if (appState.selectedLinearElement?.isEditing) {
       // TODO: Invariants should be checked here instead of duplicateSelectedPoints()
       try {
         const newAppState = LinearElementEditor.duplicateSelectedPoints(

packages/excalidraw/actions/actionFinalize.tsx

@@ -3,18 +3,36 @@ import { pointFrom } from "@excalidraw/math";
 import {
   maybeBindLinearElement,
   bindOrUnbindLinearElement,
+  isBindingEnabled,
+} from "@excalidraw/element/binding";
+import { isValidPolygon, LinearElementEditor } from "@excalidraw/element";
+
+import {
+  isBindingElement,
+  isFreeDrawElement,
+  isLinearElement,
+  isLineElement,
 } from "@excalidraw/element";
-import { LinearElementEditor } from "@excalidraw/element";
 
-import { isBindingElement, isLinearElement } from "@excalidraw/element";
-
-import { KEYS, arrayToMap, updateActiveTool } from "@excalidraw/common";
+import {
+  KEYS,
+  arrayToMap,
+  tupleToCoors,
+  updateActiveTool,
+} from "@excalidraw/common";
 import { isPathALoop } from "@excalidraw/element";
 
 import { isInvisiblySmallElement } from "@excalidraw/element";
 
 import { CaptureUpdateAction } from "@excalidraw/element";
 
+import type { LocalPoint } from "@excalidraw/math";
+import type {
+  ExcalidrawElement,
+  ExcalidrawLinearElement,
+  NonDeleted,
+} from "@excalidraw/element/types";
+
 import { t } from "../i18n";
 import { resetCursor } from "../cursor";
 import { done } from "../components/icons";
@@ -28,14 +46,57 @@ export const actionFinalize = register({
   name: "finalize",
   label: "",
   trackEvent: false,
-  perform: (elements, appState, _, app) => {
+  perform: (elements, appState, data, app) => {
     const { interactiveCanvas, focusContainer, scene } = app;
-
+    const { event, sceneCoords } =
+      (data as {
+        event?: PointerEvent;
+        sceneCoords?: { x: number; y: number };
+      }) ?? {};
     const elementsMap = scene.getNonDeletedElementsMap();
 
-    if (appState.editingLinearElement) {
+    if (event && appState.selectedLinearElement) {
+      const linearElementEditor = LinearElementEditor.handlePointerUp(
+        event,
+        appState.selectedLinearElement,
+        appState,
+        app.scene,
+      );
+
+      const { startBindingElement, endBindingElement } = linearElementEditor;
+      const element = app.scene.getElement(linearElementEditor.elementId);
+      if (isBindingElement(element)) {
+        bindOrUnbindLinearElement(
+          element,
+          startBindingElement,
+          endBindingElement,
+          app.scene,
+        );
+      }
+
+      if (linearElementEditor !== appState.selectedLinearElement) {
+        let newElements = elements;
+        if (element && isInvisiblySmallElement(element)) {
+          // TODO: #7348 in theory this gets recorded by the store, so the invisible elements could be restored by the undo/redo, which might be not what we would want
+          newElements = newElements.filter((el) => el.id !== element!.id);
+        }
+        return {
+          elements: newElements,
+          appState: {
+            selectedLinearElement: {
+              ...linearElementEditor,
+              selectedPointsIndices: null,
+            },
+            suggestedBindings: [],
+          },
+          captureUpdate: CaptureUpdateAction.IMMEDIATELY,
+        };
+      }
+    }
+
+    if (appState.selectedLinearElement?.isEditing) {
       const { elementId, startBindingElement, endBindingElement } =
-        appState.editingLinearElement;
+        appState.selectedLinearElement;
       const element = LinearElementEditor.getElement(elementId, elementsMap);
 
       if (element) {
@@ -47,6 +108,12 @@ export const actionFinalize = register({
             scene,
           );
         }
+        if (isLineElement(element) && !isValidPolygon(element.points)) {
+          scene.mutateElement(element, {
+            polygon: false,
+          });
+        }
+
         return {
           elements:
             element.points.length < 2 || isInvisiblySmallElement(element)
@@ -55,7 +122,11 @@ export const actionFinalize = register({
           appState: {
             ...appState,
             cursorButton: "up",
-            editingLinearElement: null,
+            selectedLinearElement: new LinearElementEditor(
+              element,
+              arrayToMap(elementsMap),
+              false, // exit editing mode
+            ),
           },
           captureUpdate: CaptureUpdateAction.IMMEDIATELY,
         };
@@ -64,91 +135,103 @@ export const actionFinalize = register({
 
     let newElements = elements;
 
-    const pendingImageElement =
-      appState.pendingImageElementId &&
-      scene.getElement(appState.pendingImageElementId);
-
-    if (pendingImageElement) {
-      scene.mutateElement(
-        pendingImageElement,
-        { isDeleted: true },
-        { informMutation: false, isDragging: false },
-      );
-    }
-
     if (window.document.activeElement instanceof HTMLElement) {
       focusContainer();
     }
 
-    const multiPointElement = appState.multiElement
-      ? appState.multiElement
-      : appState.newElement?.type === "freedraw"
-      ? appState.newElement
-      : null;
+    let element: NonDeleted<ExcalidrawElement> | null = null;
+    if (appState.multiElement) {
+      element = appState.multiElement;
+    } else if (
+      appState.newElement?.type === "freedraw" ||
+      isBindingElement(appState.newElement)
+    ) {
+      element = appState.newElement;
+    } else if (Object.keys(appState.selectedElementIds).length === 1) {
+      const candidate = elementsMap.get(
+        Object.keys(appState.selectedElementIds)[0],
+      ) as NonDeleted<ExcalidrawLinearElement> | undefined;
+      if (candidate) {
+        element = candidate;
+      }
+    }
 
-    if (multiPointElement) {
+    if (element) {
       // pen and mouse have hover
-      if (
-        multiPointElement.type !== "freedraw" &&
-        appState.lastPointerDownWith !== "touch"
-      ) {
-        const { points, lastCommittedPoint } = multiPointElement;
+      if (appState.multiElement && element.type !== "freedraw") {
+        const { points, lastCommittedPoint } = element;
         if (
           !lastCommittedPoint ||
           points[points.length - 1] !== lastCommittedPoint
         ) {
-          scene.mutateElement(multiPointElement, {
-            points: multiPointElement.points.slice(0, -1),
+          scene.mutateElement(element, {
+            points: element.points.slice(0, -1),
           });
         }
       }
 
-      if (isInvisiblySmallElement(multiPointElement)) {
+      if (element && isInvisiblySmallElement(element)) {
         // TODO: #7348 in theory this gets recorded by the store, so the invisible elements could be restored by the undo/redo, which might be not what we would want
-        newElements = newElements.filter(
-          (el) => el.id !== multiPointElement.id,
-        );
+        newElements = newElements.filter((el) => el.id !== element!.id);
       }
 
-      // If the multi point line closes the loop,
-      // set the last point to first point.
-      // This ensures that loop remains closed at different scales.
-      const isLoop = isPathALoop(multiPointElement.points, appState.zoom.value);
-      if (
-        multiPointElement.type === "line" ||
-        multiPointElement.type === "freedraw"
-      ) {
-        if (isLoop) {
-          const linePoints = multiPointElement.points;
+      if (isLinearElement(element) || isFreeDrawElement(element)) {
+        // If the multi point line closes the loop,
+        // set the last point to first point.
+        // This ensures that loop remains closed at different scales.
+        const isLoop = isPathALoop(element.points, appState.zoom.value);
+
+        if (isLoop && (isLineElement(element) || isFreeDrawElement(element))) {
+          const linePoints = element.points;
           const firstPoint = linePoints[0];
-          scene.mutateElement(multiPointElement, {
-            points: linePoints.map((p, index) =>
-              index === linePoints.length - 1
-                ? pointFrom(firstPoint[0], firstPoint[1])
-                : p,
-            ),
+          const points: LocalPoint[] = linePoints.map((p, index) =>
+            index === linePoints.length - 1
+              ? pointFrom(firstPoint[0], firstPoint[1])
+              : p,
+          );
+          if (isLineElement(element)) {
+            scene.mutateElement(element, {
+              points,
+              polygon: true,
+            });
+          } else {
+            scene.mutateElement(element, {
+              points,
+            });
+          }
+        }
+
+        if (isLineElement(element) && !isValidPolygon(element.points)) {
+          scene.mutateElement(element, {
+            polygon: false,
           });
         }
-      }
 
-      if (
-        isBindingElement(multiPointElement) &&
-        !isLoop &&
-        multiPointElement.points.length > 1
-      ) {
-        const [x, y] = LinearElementEditor.getPointAtIndexGlobalCoordinates(
-          multiPointElement,
-          -1,
-          arrayToMap(elements),
-        );
-        maybeBindLinearElement(multiPointElement, appState, { x, y }, scene);
+        if (
+          isBindingElement(element) &&
+          !isLoop &&
+          element.points.length > 1 &&
+          isBindingEnabled(appState)
+        ) {
+          const coords =
+            sceneCoords ??
+            tupleToCoors(
+              LinearElementEditor.getPointAtIndexGlobalCoordinates(
+                element,
+                -1,
+                arrayToMap(elements),
+              ),
+            );
+
+          maybeBindLinearElement(element, appState, coords, scene);
+        }
       }
     }
 
     if (
       (!appState.activeTool.locked &&
         appState.activeTool.type !== "freedraw") ||
-      !multiPointElement
+      !element
     ) {
       resetCursor(interactiveCanvas);
     }
@@ -175,7 +258,7 @@ export const actionFinalize = register({
         activeTool:
           (appState.activeTool.locked ||
             appState.activeTool.type === "freedraw") &&
-          multiPointElement
+          element
             ? appState.activeTool
             : activeTool,
         activeEmbeddable: null,
@@ -186,23 +269,19 @@ export const actionFinalize = register({
         startBoundElement: null,
         suggestedBindings: [],
         selectedElementIds:
-          multiPointElement &&
+          element &&
           !appState.activeTool.locked &&
           appState.activeTool.type !== "freedraw"
             ? {
                 ...appState.selectedElementIds,
-                [multiPointElement.id]: true,
+                [element.id]: true,
               }
             : appState.selectedElementIds,
         // To select the linear element when user has finished mutipoint editing
         selectedLinearElement:
-          multiPointElement && isLinearElement(multiPointElement)
-            ? new LinearElementEditor(
-                multiPointElement,
-                arrayToMap(newElements),
-              )
+          element && isLinearElement(element)
+            ? new LinearElementEditor(element, arrayToMap(newElements))
             : appState.selectedLinearElement,
-        pendingImageElementId: null,
       },
       // TODO: #7348 we should not capture everything, but if we don't, it leads to incosistencies -> revisit
       captureUpdate: CaptureUpdateAction.IMMEDIATELY,
@@ -210,7 +289,7 @@ export const actionFinalize = register({
   },
   keyTest: (event, appState) =>
     (event.key === KEYS.ESCAPE &&
-      (appState.editingLinearElement !== null ||
+      (appState.selectedLinearElement?.isEditing ||
         (!appState.newElement && appState.multiElement === null))) ||
     ((event.key === KEYS.ESCAPE || event.key === KEYS.ENTER) &&
       appState.multiElement !== null),

packages/excalidraw/actions/actionLinearEditor.tsx

@@ -1,19 +1,29 @@
-import { LinearElementEditor } from "@excalidraw/element";
+import {
+  isElbowArrow,
+  isLinearElement,
+  isLineElement,
+} from "@excalidraw/element";
+import { arrayToMap, invariant } from "@excalidraw/common";
 
-import { isElbowArrow, isLinearElement } from "@excalidraw/element";
+import {
+  toggleLinePolygonState,
+  CaptureUpdateAction,
+} from "@excalidraw/element";
 
-import { arrayToMap } from "@excalidraw/common";
-
-import { CaptureUpdateAction } from "@excalidraw/element";
-
-import type { ExcalidrawLinearElement } from "@excalidraw/element/types";
+import type {
+  ExcalidrawLinearElement,
+  ExcalidrawLineElement,
+} from "@excalidraw/element/types";
 
 import { DEFAULT_CATEGORIES } from "../components/CommandPalette/CommandPalette";
 import { ToolButton } from "../components/ToolButton";
-import { lineEditorIcon } from "../components/icons";
-
+import { lineEditorIcon, polygonIcon } from "../components/icons";
 import { t } from "../i18n";
 
+import { ButtonIcon } from "../components/ButtonIcon";
+
+import { newElementWith } from "../../element/src/mutateElement";
+
 import { register } from "./register";
 
 export const actionToggleLinearEditor = register({
@@ -35,7 +45,7 @@ export const actionToggleLinearEditor = register({
   predicate: (elements, appState, _, app) => {
     const selectedElements = app.scene.getSelectedElements(appState);
     if (
-      !appState.editingLinearElement &&
+      !appState.selectedLinearElement?.isEditing &&
       selectedElements.length === 1 &&
       isLinearElement(selectedElements[0]) &&
       !isElbowArrow(selectedElements[0])
@@ -50,14 +60,25 @@ export const actionToggleLinearEditor = register({
       includeBoundTextElement: true,
     })[0] as ExcalidrawLinearElement;
 
-    const editingLinearElement =
-      appState.editingLinearElement?.elementId === selectedElement.id
-        ? null
-        : new LinearElementEditor(selectedElement, arrayToMap(elements));
+    invariant(selectedElement, "No selected element found");
+    invariant(
+      appState.selectedLinearElement,
+      "No selected linear element found",
+    );
+    invariant(
+      selectedElement.id === appState.selectedLinearElement.elementId,
+      "Selected element ID and linear editor elementId does not match",
+    );
+
+    const selectedLinearElement = {
+      ...appState.selectedLinearElement,
+      isEditing: !appState.selectedLinearElement.isEditing,
+    };
+
     return {
       appState: {
         ...appState,
-        editingLinearElement,
+        selectedLinearElement,
       },
       captureUpdate: CaptureUpdateAction.IMMEDIATELY,
     };
@@ -83,3 +104,110 @@ export const actionToggleLinearEditor = register({
     );
   },
 });
+
+export const actionTogglePolygon = register({
+  name: "togglePolygon",
+  category: DEFAULT_CATEGORIES.elements,
+  icon: polygonIcon,
+  keywords: ["loop"],
+  label: (elements, appState, app) => {
+    const selectedElements = app.scene.getSelectedElements({
+      selectedElementIds: appState.selectedElementIds,
+    });
+
+    const allPolygons = !selectedElements.some(
+      (element) => !isLineElement(element) || !element.polygon,
+    );
+
+    return allPolygons
+      ? "labels.polygon.breakPolygon"
+      : "labels.polygon.convertToPolygon";
+  },
+  trackEvent: {
+    category: "element",
+  },
+  predicate: (elements, appState, _, app) => {
+    const selectedElements = app.scene.getSelectedElements({
+      selectedElementIds: appState.selectedElementIds,
+    });
+
+    return (
+      selectedElements.length > 0 &&
+      selectedElements.every(
+        (element) => isLineElement(element) && element.points.length >= 4,
+      )
+    );
+  },
+  perform(elements, appState, _, app) {
+    const selectedElements = app.scene.getSelectedElements(appState);
+
+    if (selectedElements.some((element) => !isLineElement(element))) {
+      return false;
+    }
+
+    const targetElements = selectedElements as ExcalidrawLineElement[];
+
+    // if one element not a polygon, convert all to polygon
+    const nextPolygonState = targetElements.some((element) => !element.polygon);
+
+    const targetElementsMap = arrayToMap(targetElements);
+
+    return {
+      elements: elements.map((element) => {
+        if (!targetElementsMap.has(element.id) || !isLineElement(element)) {
+          return element;
+        }
+
+        return newElementWith(element, {
+          backgroundColor: nextPolygonState
+            ? element.backgroundColor
+            : "transparent",
+          ...toggleLinePolygonState(element, nextPolygonState),
+        });
+      }),
+      appState,
+      captureUpdate: CaptureUpdateAction.IMMEDIATELY,
+    };
+  },
+  PanelComponent: ({ appState, updateData, app }) => {
+    const selectedElements = app.scene.getSelectedElements({
+      selectedElementIds: appState.selectedElementIds,
+    });
+
+    if (
+      selectedElements.length === 0 ||
+      selectedElements.some(
+        (element) =>
+          !isLineElement(element) ||
+          // only show polygon button if every selected element is already
+          // a polygon, effectively showing this button only to allow for
+          // disabling the polygon state
+          !element.polygon ||
+          element.points.length < 3,
+      )
+    ) {
+      return null;
+    }
+
+    const allPolygon = selectedElements.every(
+      (element) => isLineElement(element) && element.polygon,
+    );
+
+    const label = t(
+      allPolygon
+        ? "labels.polygon.breakPolygon"
+        : "labels.polygon.convertToPolygon",
+    );
+
+    return (
+      <ButtonIcon
+        icon={polygonIcon}
+        title={label}
+        aria-label={label}
+        active={allPolygon}
+        onClick={() => updateData(null)}
+        style={{ marginLeft: "auto" }}
+      />
+    );
+  },
+});

packages/excalidraw/actions/actionProperties.tsx

@@ -18,18 +18,16 @@ import {
   arrayToMap,
   getFontFamilyString,
   getShortcutKey,
-  tupleToCoors,
   getLineHeight,
+  isTransparent,
   reduceToCommonValue,
 } from "@excalidraw/common";
 
-import { getNonDeletedElements } from "@excalidraw/element";
+import { canBecomePolygon, getNonDeletedElements } from "@excalidraw/element";
 
 import {
   bindLinearElement,
-  bindPointToSnapToElementOutline,
   calculateFixedPointForElbowArrowBinding,
-  getHoveredElementForBinding,
   updateBoundElements,
 } from "@excalidraw/element";
 
@@ -47,15 +45,18 @@ import {
   isBoundToContainer,
   isElbowArrow,
   isLinearElement,
+  isLineElement,
   isTextElement,
   isUsingAdaptiveRadius,
 } from "@excalidraw/element";
 
 import { hasStrokeColor } from "@excalidraw/element";
 
-import { updateElbowArrowPoints } from "@excalidraw/element";
-
-import { CaptureUpdateAction } from "@excalidraw/element";
+import {
+  updateElbowArrowPoints,
+  CaptureUpdateAction,
+  toggleLinePolygonState,
+} from "@excalidraw/element";
 
 import type { LocalPoint } from "@excalidraw/math";
 
@@ -349,22 +350,52 @@ export const actionChangeBackgroundColor = register({
   name: "changeBackgroundColor",
   label: "labels.changeBackground",
   trackEvent: false,
-  perform: (elements, appState, value) => {
-    return {
-      ...(value.currentItemBackgroundColor && {
-        elements: changeProperty(elements, appState, (el) =>
-          newElementWith(el, {
+  perform: (elements, appState, value, app) => {
+    if (!value.currentItemBackgroundColor) {
+      return {
+        appState: {
+          ...appState,
+          ...value,
+        },
+        captureUpdate: CaptureUpdateAction.EVENTUALLY,
+      };
+    }
+
+    let nextElements;
+
+    const selectedElements = app.scene.getSelectedElements(appState);
+    const shouldEnablePolygon =
+      !isTransparent(value.currentItemBackgroundColor) &&
+      selectedElements.every(
+        (el) => isLineElement(el) && canBecomePolygon(el.points),
+      );
+
+    if (shouldEnablePolygon) {
+      const selectedElementsMap = arrayToMap(selectedElements);
+      nextElements = elements.map((el) => {
+        if (selectedElementsMap.has(el.id) && isLineElement(el)) {
+          return newElementWith(el, {
             backgroundColor: value.currentItemBackgroundColor,
-          }),
-        ),
-      }),
+            ...toggleLinePolygonState(el, true),
+          });
+        }
+        return el;
+      });
+    } else {
+      nextElements = changeProperty(elements, appState, (el) =>
+        newElementWith(el, {
+          backgroundColor: value.currentItemBackgroundColor,
+        }),
+      );
+    }
+
+    return {
+      elements: nextElements,
       appState: {
         ...appState,
         ...value,
       },
-      captureUpdate: !!value.currentItemBackgroundColor
-        ? CaptureUpdateAction.IMMEDIATELY
-        : CaptureUpdateAction.EVENTUALLY,
+      captureUpdate: CaptureUpdateAction.IMMEDIATELY,
     };
   },
   PanelComponent: ({ elements, appState, updateData, app }) => (
@@ -1373,7 +1404,7 @@ export const actionChangeRoundness = register({
       captureUpdate: CaptureUpdateAction.IMMEDIATELY,
     };
   },
-  PanelComponent: ({ elements, appState, updateData, app }) => {
+  PanelComponent: ({ elements, appState, updateData, app, renderAction }) => {
     const targetElements = getTargetElements(
       getNonDeletedElements(elements),
       appState,
@@ -1417,6 +1448,7 @@ export const actionChangeRoundness = register({
             )}
             onChange={(value) => updateData(value)}
           />
+          {renderAction("togglePolygon")}
         </div>
       </fieldset>
     );
@@ -1626,63 +1658,16 @@ export const actionChangeArrowType = register({
             -1,
             elementsMap,
           );
-        const startHoveredElement =
-          !newElement.startBinding &&
-          getHoveredElementForBinding(
-            tupleToCoors(startGlobalPoint),
-            elements,
-            elementsMap,
-            appState.zoom,
-            false,
-            true,
-          );
-        const endHoveredElement =
-          !newElement.endBinding &&
-          getHoveredElementForBinding(
-            tupleToCoors(endGlobalPoint),
-            elements,
-            elementsMap,
-            appState.zoom,
-            false,
-            true,
-          );
-        const startElement = startHoveredElement
-          ? startHoveredElement
-          : newElement.startBinding &&
-            (elementsMap.get(
-              newElement.startBinding.elementId,
-            ) as ExcalidrawBindableElement);
-        const endElement = endHoveredElement
-          ? endHoveredElement
-          : newElement.endBinding &&
-            (elementsMap.get(
-              newElement.endBinding.elementId,
-            ) as ExcalidrawBindableElement);
-
-        const finalStartPoint = startHoveredElement
-          ? bindPointToSnapToElementOutline(
-              newElement,
-              startHoveredElement,
-              "start",
-            )
-          : startGlobalPoint;
-        const finalEndPoint = endHoveredElement
-          ? bindPointToSnapToElementOutline(
-              newElement,
-              endHoveredElement,
-              "end",
-            )
-          : endGlobalPoint;
-
-        startHoveredElement &&
-          bindLinearElement(
-            newElement,
-            startHoveredElement,
-            "start",
-            app.scene,
-          );
-        endHoveredElement &&
-          bindLinearElement(newElement, endHoveredElement, "end", app.scene);
+        const startElement =
+          newElement.startBinding &&
+          (elementsMap.get(
+            newElement.startBinding.elementId,
+          ) as ExcalidrawBindableElement);
+        const endElement =
+          newElement.endBinding &&
+          (elementsMap.get(
+            newElement.endBinding.elementId,
+          ) as ExcalidrawBindableElement);
 
         const startBinding =
           startElement && newElement.startBinding
@@ -1693,6 +1678,7 @@ export const actionChangeArrowType = register({
                   newElement,
                   startElement,
                   "start",
+                  elementsMap,
                 ),
               }
             : null;
@@ -1705,6 +1691,7 @@ export const actionChangeArrowType = register({
                   newElement,
                   endElement,
                   "end",
+                  elementsMap,
                 ),
               }
             : null;
@@ -1714,7 +1701,7 @@ export const actionChangeArrowType = register({
           startBinding,
           endBinding,
           ...updateElbowArrowPoints(newElement, elementsMap, {
-            points: [finalStartPoint, finalEndPoint].map(
+            points: [startGlobalPoint, endGlobalPoint].map(
               (p): LocalPoint =>
                 pointFrom(p[0] - newElement.x, p[1] - newElement.y),
             ),

packages/excalidraw/actions/actionSelectAll.ts

@@ -21,7 +21,7 @@ export const actionSelectAll = register({
   trackEvent: { category: "canvas" },
   viewMode: false,
   perform: (elements, appState, value, app) => {
-    if (appState.editingLinearElement) {
+    if (appState.selectedLinearElement?.isEditing) {
       return false;
     }
 

packages/excalidraw/actions/actionToggleSearchMenu.ts

@@ -25,6 +25,10 @@ export const actionToggleSearchMenu = register({
     predicate: (appState) => appState.gridModeEnabled,
   },
   perform(elements, appState, _, app) {
+    if (appState.openDialog) {
+      return false;
+    }
+
     if (
       appState.openSidebar?.name === DEFAULT_SIDEBAR.name &&
       appState.openSidebar.tab === CANVAS_SEARCH_TAB

packages/excalidraw/actions/manager.tsx

@@ -179,6 +179,7 @@ export class ActionManager {
           appProps={this.app.props}
           app={this.app}
           data={data}
+          renderAction={this.renderAction}
         />
       );
     }

packages/excalidraw/actions/types.ts

@@ -142,7 +142,8 @@ export type ActionName =
   | "cropEditor"
   | "wrapSelectionInFrame"
   | "toggleLassoTool"
-  | "toggleShapeSwitch";
+  | "toggleShapeSwitch"
+  | "togglePolygon";
 
 export type PanelComponentProps = {
   elements: readonly ExcalidrawElement[];
@@ -151,6 +152,10 @@ export type PanelComponentProps = {
   appProps: ExcalidrawProps;
   data?: Record<string, any>;
   app: AppClassProperties;
+  renderAction: (
+    name: ActionName,
+    data?: PanelComponentProps["data"],
+  ) => React.JSX.Element | null;
 };
 
 export interface Action {

packages/excalidraw/appState.ts

@@ -10,6 +10,7 @@ import {
   STATS_PANELS,
   THEME,
   DEFAULT_GRID_STEP,
+  isTestEnv,
 } from "@excalidraw/common";
 
 import type { AppState, NormalizedZoomValue } from "./types";
@@ -36,7 +37,7 @@ export const getDefaultAppState = (): Omit<
     currentItemRoughness: DEFAULT_ELEMENT_PROPS.roughness,
     currentItemStartArrowhead: null,
     currentItemStrokeColor: DEFAULT_ELEMENT_PROPS.strokeColor,
-    currentItemRoundness: "round",
+    currentItemRoundness: isTestEnv() ? "sharp" : "round",
     currentItemArrowType: ARROW_TYPE.round,
     currentItemStrokeStyle: DEFAULT_ELEMENT_PROPS.strokeStyle,
     currentItemStrokeWidth: DEFAULT_ELEMENT_PROPS.strokeWidth,
@@ -47,7 +48,6 @@ export const getDefaultAppState = (): Omit<
     newElement: null,
     editingTextElement: null,
     editingGroupId: null,
-    editingLinearElement: null,
     activeTool: {
       type: "selection",
       customType: null,
@@ -108,7 +108,6 @@ export const getDefaultAppState = (): Omit<
       value: 1 as NormalizedZoomValue,
     },
     viewModeEnabled: false,
-    pendingImageElementId: null,
     showHyperlinkPopup: false,
     selectedLinearElement: null,
     snapLines: [],
@@ -175,7 +174,6 @@ const APP_STATE_STORAGE_CONF = (<
   newElement: { browser: false, export: false, server: false },
   editingTextElement: { browser: false, export: false, server: false },
   editingGroupId: { browser: true, export: false, server: false },
-  editingLinearElement: { browser: false, export: false, server: false },
   activeTool: { browser: true, export: false, server: false },
   penMode: { browser: true, export: false, server: false },
   penDetected: { browser: true, export: false, server: false },
@@ -237,7 +235,6 @@ const APP_STATE_STORAGE_CONF = (<
   zenModeEnabled: { browser: true, export: false, server: false },
   zoom: { browser: true, export: false, server: false },
   viewModeEnabled: { browser: false, export: false, server: false },
-  pendingImageElementId: { browser: false, export: false, server: false },
   showHyperlinkPopup: { browser: false, export: false, server: false },
   selectedLinearElement: { browser: true, export: false, server: false },
   snapLines: { browser: false, export: false, server: false },

packages/excalidraw/components/Actions.tsx

@@ -140,7 +140,7 @@ export const SelectedShapeActions = ({
     targetElements.length === 1 || isSingleElementBoundContainer;
 
   const showLineEditorAction =
-    !appState.editingLinearElement &&
+    !appState.selectedLinearElement?.isEditing &&
     targetElements.length === 1 &&
     isLinearElement(targetElements[0]) &&
     !isElbowArrow(targetElements[0]);
@@ -352,7 +352,6 @@ export const ShapesSwitcher = ({
               if (value === "image") {
                 app.setActiveTool({
                   type: value,
-                  insertOnCanvasDirectly: pointerType !== "mouse",
                 });
               } else {
                 app.setActiveTool({ type: value });
@@ -506,15 +505,3 @@ export const ExitZenModeAction = ({
     {t("buttons.exitZenMode")}
   </button>
 );
-
-export const FinalizeAction = ({
-  renderAction,
-  className,
-}: {
-  renderAction: ActionManager["renderAction"];
-  className?: string;
-}) => (
-  <div className={`finalize-button ${className}`}>
-    {renderAction("finalize", { size: "small" })}
-  </div>
-);

packages/excalidraw/components/ButtonIcon.tsx

@@ -15,6 +15,7 @@ interface ButtonIconProps {
   /** include standalone style (could interfere with parent styles) */
   standalone?: boolean;
   onClick: (event: React.MouseEvent<HTMLButtonElement, MouseEvent>) => void;
+  style?: React.CSSProperties;
 }
 
 export const ButtonIcon = forwardRef<HTMLButtonElement, ButtonIconProps>(
@@ -30,6 +31,7 @@ export const ButtonIcon = forwardRef<HTMLButtonElement, ButtonIconProps>(
         data-testid={testId}
         className={clsx(className, { standalone, active })}
         onClick={onClick}
+        style={props.style}
       >
         {icon}
       </button>

packages/excalidraw/components/CommandPalette/CommandPalette.scss

@@ -108,6 +108,7 @@ $verticalBreakpoint: 861px;
           display: flex;
           align-items: center;
           gap: 0.25rem;
+          overflow: hidden;
         }
       }
 

packages/excalidraw/components/CommandPalette/CommandPalette.tsx

@@ -59,6 +59,8 @@ import { useStableCallback } from "../../hooks/useStableCallback";
 import { activeConfirmDialogAtom } from "../ActiveConfirmDialog";
 import { useStable } from "../../hooks/useStable";
 
+import { Ellipsify } from "../Ellipsify";
+
 import * as defaultItems from "./defaultCommandPaletteItems";
 
 import "./CommandPalette.scss";
@@ -293,6 +295,7 @@ function CommandPaletteInner({
         actionManager.actions.decreaseFontSize,
         actionManager.actions.toggleLinearEditor,
         actionManager.actions.cropEditor,
+        actionManager.actions.togglePolygon,
         actionLink,
         actionCopyElementLink,
         actionLinkToElement,
@@ -502,7 +505,6 @@ function CommandPaletteInner({
               if (value === "image") {
                 app.setActiveTool({
                   type: value,
-                  insertOnCanvasDirectly: event.type === EVENT.KEYDOWN,
                 });
               } else {
                 app.setActiveTool({ type: value });
@@ -964,7 +966,7 @@ const CommandItem = ({
             }
           />
         )}
-        {command.label}
+        <Ellipsify>{command.label}</Ellipsify>
       </div>
       {showShortcut && command.shortcut && (
         <CommandShortcutHint shortcut={command.shortcut} />

packages/excalidraw/components/Ellipsify.tsx

@@ -0,0 +1,18 @@
+export const Ellipsify = ({
+  children,
+  ...rest
+}: { children: React.ReactNode } & React.HTMLAttributes<HTMLSpanElement>) => {
+  return (
+    <span
+      {...rest}
+      style={{
+        textOverflow: "ellipsis",
+        overflow: "hidden",
+        whiteSpace: "nowrap",
+        ...rest.style,
+      }}
+    >
+      {children}
+    </span>
+  );
+};

packages/excalidraw/components/HintViewer.tsx

@@ -4,6 +4,7 @@ import {
   isFlowchartNodeElement,
   isImageElement,
   isLinearElement,
+  isLineElement,
   isTextBindableContainer,
   isTextElement,
 } from "@excalidraw/element";
@@ -73,10 +74,6 @@ const getHints = ({
     return t("hints.embeddable");
   }
 
-  if (appState.activeTool.type === "image" && appState.pendingImageElementId) {
-    return t("hints.placeImage");
-  }
-
   const selectedElements = app.scene.getSelectedElements(appState);
 
   if (
@@ -118,7 +115,7 @@ const getHints = ({
       appState.selectionElement &&
       !selectedElements.length &&
       !appState.editingTextElement &&
-      !appState.editingLinearElement
+      !appState.selectedLinearElement?.isEditing
     ) {
       return [t("hints.deepBoxSelect")];
     }
@@ -133,12 +130,14 @@ const getHints = ({
 
     if (selectedElements.length === 1) {
       if (isLinearElement(selectedElements[0])) {
-        if (appState.editingLinearElement) {
-          return appState.editingLinearElement.selectedPointsIndices
+        if (appState.selectedLinearElement?.isEditing) {
+          return appState.selectedLinearElement.selectedPointsIndices
             ? t("hints.lineEditor_pointSelected")
             : t("hints.lineEditor_nothingSelected");
         }
-        return t("hints.lineEditor_info");
+        return isLineElement(selectedElements[0])
+          ? t("hints.lineEditor_line_info")
+          : t("hints.lineEditor_info");
       }
       if (
         !appState.newElement &&

packages/excalidraw/components/InlineIcon.tsx

@@ -7,6 +7,7 @@ export const InlineIcon = ({ icon }: { icon: React.ReactNode }) => {
         display: "inline-block",
         lineHeight: 0,
         verticalAlign: "middle",
+        flex: "0 0 auto",
       }}
     >
       {icon}

packages/excalidraw/components/SearchMenu.tsx

@@ -297,6 +297,10 @@ export const SearchMenu = () => {
         event.preventDefault();
         event.stopPropagation();
 
+        if (app.state.openDialog) {
+          return;
+        }
+
         if (!searchInputRef.current?.matches(":focus")) {
           if (app.state.openDialog) {
             setAppState({

packages/excalidraw/components/Stats/Dimension.tsx

@@ -7,6 +7,9 @@ import {
 } from "@excalidraw/element";
 import { resizeSingleElement } from "@excalidraw/element";
 import { isImageElement } from "@excalidraw/element";
+import { isFrameLikeElement } from "@excalidraw/element";
+import { getElementsInResizingFrame } from "@excalidraw/element";
+import { replaceAllElementsInFrame } from "@excalidraw/element";
 
 import type { ExcalidrawElement } from "@excalidraw/element/types";
 
@@ -15,7 +18,10 @@ import type { Scene } from "@excalidraw/element";
 import DragInput from "./DragInput";
 import { getStepSizedValue, isPropertyEditable } from "./utils";
 
-import type { DragInputCallbackType } from "./DragInput";
+import type {
+  DragFinishedCallbackType,
+  DragInputCallbackType,
+} from "./DragInput";
 import type { AppState } from "../../types";
 
 interface DimensionDragInputProps {
@@ -43,6 +49,8 @@ const handleDimensionChange: DragInputCallbackType<
   originalAppState,
   instantChange,
   scene,
+  app,
+  setAppState,
 }) => {
   const elementsMap = scene.getNonDeletedElementsMap();
   const origElement = originalElements[0];
@@ -153,6 +161,7 @@ const handleDimensionChange: DragInputCallbackType<
       return;
     }
 
+    // User types in a value to stats then presses Enter
     if (nextValue !== undefined) {
       const nextWidth = Math.max(
         property === "width"
@@ -184,52 +193,123 @@ const handleDimensionChange: DragInputCallbackType<
         },
       );
 
+      // Handle frame membership update for resized frames
+      if (isFrameLikeElement(latestElement)) {
+        const nextElementsInFrame = getElementsInResizingFrame(
+          scene.getElementsIncludingDeleted(),
+          latestElement,
+          originalAppState,
+          scene.getNonDeletedElementsMap(),
+        );
+
+        const updatedElements = replaceAllElementsInFrame(
+          scene.getElementsIncludingDeleted(),
+          nextElementsInFrame,
+          latestElement,
+          app,
+        );
+
+        scene.replaceAllElements(updatedElements);
+      }
+
       return;
     }
-    const changeInWidth = property === "width" ? accumulatedChange : 0;
-    const changeInHeight = property === "height" ? accumulatedChange : 0;
 
-    let nextWidth = Math.max(0, origElement.width + changeInWidth);
-    if (property === "width") {
-      if (shouldChangeByStepSize) {
-        nextWidth = getStepSizedValue(nextWidth, STEP_SIZE);
-      } else {
-        nextWidth = Math.round(nextWidth);
-      }
-    }
+    // Stats slider is dragged
+    {
+      const changeInWidth = property === "width" ? accumulatedChange : 0;
+      const changeInHeight = property === "height" ? accumulatedChange : 0;
 
-    let nextHeight = Math.max(0, origElement.height + changeInHeight);
-    if (property === "height") {
-      if (shouldChangeByStepSize) {
-        nextHeight = getStepSizedValue(nextHeight, STEP_SIZE);
-      } else {
-        nextHeight = Math.round(nextHeight);
-      }
-    }
-
-    if (keepAspectRatio) {
+      let nextWidth = Math.max(0, origElement.width + changeInWidth);
       if (property === "width") {
-        nextHeight = Math.round((nextWidth / aspectRatio) * 100) / 100;
-      } else {
-        nextWidth = Math.round(nextHeight * aspectRatio * 100) / 100;
+        if (shouldChangeByStepSize) {
+          nextWidth = getStepSizedValue(nextWidth, STEP_SIZE);
+        } else {
+          nextWidth = Math.round(nextWidth);
+        }
+      }
+
+      let nextHeight = Math.max(0, origElement.height + changeInHeight);
+      if (property === "height") {
+        if (shouldChangeByStepSize) {
+          nextHeight = getStepSizedValue(nextHeight, STEP_SIZE);
+        } else {
+          nextHeight = Math.round(nextHeight);
+        }
+      }
+
+      if (keepAspectRatio) {
+        if (property === "width") {
+          nextHeight = Math.round((nextWidth / aspectRatio) * 100) / 100;
+        } else {
+          nextWidth = Math.round(nextHeight * aspectRatio * 100) / 100;
+        }
+      }
+
+      nextHeight = Math.max(MIN_WIDTH_OR_HEIGHT, nextHeight);
+      nextWidth = Math.max(MIN_WIDTH_OR_HEIGHT, nextWidth);
+
+      resizeSingleElement(
+        nextWidth,
+        nextHeight,
+        latestElement,
+        origElement,
+        originalElementsMap,
+        scene,
+        property === "width" ? "e" : "s",
+        {
+          shouldMaintainAspectRatio: keepAspectRatio,
+        },
+      );
+
+      // Handle highlighting frame element candidates
+      if (isFrameLikeElement(latestElement)) {
+        const nextElementsInFrame = getElementsInResizingFrame(
+          scene.getElementsIncludingDeleted(),
+          latestElement,
+          originalAppState,
+          scene.getNonDeletedElementsMap(),
+        );
+
+        setAppState({
+          elementsToHighlight: nextElementsInFrame,
+        });
       }
     }
+  }
+};
 
-    nextHeight = Math.max(MIN_WIDTH_OR_HEIGHT, nextHeight);
-    nextWidth = Math.max(MIN_WIDTH_OR_HEIGHT, nextWidth);
+const handleDragFinished: DragFinishedCallbackType = ({
+  setAppState,
+  app,
+  originalElements,
+  originalAppState,
+}) => {
+  const elementsMap = app.scene.getNonDeletedElementsMap();
+  const origElement = originalElements?.[0];
+  const latestElement = origElement && elementsMap.get(origElement.id);
 
-    resizeSingleElement(
-      nextWidth,
-      nextHeight,
+  // Handle frame membership update for resized frames
+  if (latestElement && isFrameLikeElement(latestElement)) {
+    const nextElementsInFrame = getElementsInResizingFrame(
+      app.scene.getElementsIncludingDeleted(),
       latestElement,
-      origElement,
-      originalElementsMap,
-      scene,
-      property === "width" ? "e" : "s",
-      {
-        shouldMaintainAspectRatio: keepAspectRatio,
-      },
+      originalAppState,
+      app.scene.getNonDeletedElementsMap(),
     );
+
+    const updatedElements = replaceAllElementsInFrame(
+      app.scene.getElementsIncludingDeleted(),
+      nextElementsInFrame,
+      latestElement,
+      app,
+    );
+
+    app.scene.replaceAllElements(updatedElements);
+
+    setAppState({
+      elementsToHighlight: null,
+    });
   }
 };
 
@@ -269,6 +349,7 @@ const DimensionDragInput = ({
       scene={scene}
       appState={appState}
       property={property}
+      dragFinishedCallback={handleDragFinished}
     />
   );
 };

packages/excalidraw/components/Stats/DragInput.tsx

@@ -11,7 +11,7 @@ import type { ElementsMap, ExcalidrawElement } from "@excalidraw/element/types";
 
 import type { Scene } from "@excalidraw/element";
 
-import { useApp } from "../App";
+import { useApp, useExcalidrawSetAppState } from "../App";
 import { InlineIcon } from "../InlineIcon";
 
 import { SMALLEST_DELTA } from "./utils";
@@ -36,6 +36,15 @@ export type DragInputCallbackType<
   property: P;
   originalAppState: AppState;
   setInputValue: (value: number) => void;
+  app: ReturnType<typeof useApp>;
+  setAppState: ReturnType<typeof useExcalidrawSetAppState>;
+}) => void;
+
+export type DragFinishedCallbackType<E = ExcalidrawElement> = (props: {
+  app: ReturnType<typeof useApp>;
+  setAppState: ReturnType<typeof useExcalidrawSetAppState>;
+  originalElements: readonly E[] | null;
+  originalAppState: AppState;
 }) => void;
 
 interface StatsDragInputProps<
@@ -54,6 +63,7 @@ interface StatsDragInputProps<
   appState: AppState;
   /** how many px you need to drag to get 1 unit change */
   sensitivity?: number;
+  dragFinishedCallback?: DragFinishedCallbackType;
 }
 
 const StatsDragInput = <
@@ -71,8 +81,10 @@ const StatsDragInput = <
   scene,
   appState,
   sensitivity = 1,
+  dragFinishedCallback,
 }: StatsDragInputProps<T, E>) => {
   const app = useApp();
+  const setAppState = useExcalidrawSetAppState();
   const inputRef = useRef<HTMLInputElement>(null);
   const labelRef = useRef<HTMLDivElement>(null);
 
@@ -137,6 +149,8 @@ const StatsDragInput = <
         property,
         originalAppState: appState,
         setInputValue: (value) => setInputValue(String(value)),
+        app,
+        setAppState,
       });
       app.syncActionResult({
         captureUpdate: CaptureUpdateAction.IMMEDIATELY,
@@ -263,6 +277,8 @@ const StatsDragInput = <
                       scene,
                       originalAppState,
                       setInputValue: (value) => setInputValue(String(value)),
+                      app,
+                      setAppState,
                     });
 
                     stepChange = 0;
@@ -287,6 +303,14 @@ const StatsDragInput = <
                 captureUpdate: CaptureUpdateAction.IMMEDIATELY,
               });
 
+              // Notify implementors
+              dragFinishedCallback?.({
+                app,
+                setAppState,
+                originalElements,
+                originalAppState,
+              });
+
               lastPointer = null;
               accumulatedChange = 0;
               stepChange = 0;

packages/excalidraw/components/Stats/MultiDimension.tsx

@@ -2,7 +2,12 @@ import { pointFrom, type GlobalPoint } from "@excalidraw/math";
 import { useMemo } from "react";
 
 import { MIN_WIDTH_OR_HEIGHT } from "@excalidraw/common";
-import { updateBoundElements } from "@excalidraw/element";
+import {
+  getElementsInResizingFrame,
+  isFrameLikeElement,
+  replaceAllElementsInFrame,
+  updateBoundElements,
+} from "@excalidraw/element";
 import {
   rescalePointsInElement,
   resizeSingleElement,
@@ -25,7 +30,10 @@ import DragInput from "./DragInput";
 import { getAtomicUnits, getStepSizedValue, isPropertyEditable } from "./utils";
 import { getElementsInAtomicUnit } from "./utils";
 
-import type { DragInputCallbackType } from "./DragInput";
+import type {
+  DragFinishedCallbackType,
+  DragInputCallbackType,
+} from "./DragInput";
 import type { AtomicUnit } from "./utils";
 import type { AppState } from "../../types";
 
@@ -153,6 +161,8 @@ const handleDimensionChange: DragInputCallbackType<
   nextValue,
   scene,
   property,
+  setAppState,
+  app,
 }) => {
   const elementsMap = scene.getNonDeletedElementsMap();
   const atomicUnits = getAtomicUnits(originalElements, originalAppState);
@@ -239,6 +249,25 @@ const handleDimensionChange: DragInputCallbackType<
               shouldInformMutation: false,
             },
           );
+
+          // Handle frame membership update for resized frames
+          if (isFrameLikeElement(latestElement)) {
+            const nextElementsInFrame = getElementsInResizingFrame(
+              scene.getElementsIncludingDeleted(),
+              latestElement,
+              originalAppState,
+              scene.getNonDeletedElementsMap(),
+            );
+
+            const updatedElements = replaceAllElementsInFrame(
+              scene.getElementsIncludingDeleted(),
+              nextElementsInFrame,
+              latestElement,
+              app,
+            );
+
+            scene.replaceAllElements(updatedElements);
+          }
         }
       }
     }
@@ -250,6 +279,7 @@ const handleDimensionChange: DragInputCallbackType<
 
   const changeInWidth = property === "width" ? accumulatedChange : 0;
   const changeInHeight = property === "height" ? accumulatedChange : 0;
+  const elementsToHighlight: ExcalidrawElement[] = [];
 
   for (const atomicUnit of atomicUnits) {
     const elementsInUnit = getElementsInAtomicUnit(
@@ -342,13 +372,63 @@ const handleDimensionChange: DragInputCallbackType<
             shouldInformMutation: false,
           },
         );
+
+        // Handle highlighting frame element candidates
+        if (isFrameLikeElement(latestElement)) {
+          const nextElementsInFrame = getElementsInResizingFrame(
+            scene.getElementsIncludingDeleted(),
+            latestElement,
+            originalAppState,
+            scene.getNonDeletedElementsMap(),
+          );
+
+          elementsToHighlight.push(...nextElementsInFrame);
+        }
       }
     }
   }
 
+  setAppState({
+    elementsToHighlight,
+  });
+
   scene.triggerUpdate();
 };
 
+const handleDragFinished: DragFinishedCallbackType = ({
+  setAppState,
+  app,
+  originalElements,
+  originalAppState,
+}) => {
+  const elementsMap = app.scene.getNonDeletedElementsMap();
+  const origElement = originalElements?.[0];
+  const latestElement = origElement && elementsMap.get(origElement.id);
+
+  // Handle frame membership update for resized frames
+  if (latestElement && isFrameLikeElement(latestElement)) {
+    const nextElementsInFrame = getElementsInResizingFrame(
+      app.scene.getElementsIncludingDeleted(),
+      latestElement,
+      originalAppState,
+      app.scene.getNonDeletedElementsMap(),
+    );
+
+    const updatedElements = replaceAllElementsInFrame(
+      app.scene.getElementsIncludingDeleted(),
+      nextElementsInFrame,
+      latestElement,
+      app,
+    );
+
+    app.scene.replaceAllElements(updatedElements);
+
+    setAppState({
+      elementsToHighlight: null,
+    });
+  }
+};
+
 const MultiDimension = ({
   property,
   elements,
@@ -396,6 +476,7 @@ const MultiDimension = ({
       appState={appState}
       property={property}
       scene={scene}
+      dragFinishedCallback={handleDragFinished}
     />
   );
 };

packages/excalidraw/components/Stats/stats.test.tsx

@@ -133,7 +133,6 @@ describe("binding with linear elements", () => {
     const inputX = UI.queryStatsProperty("X")?.querySelector(
       ".drag-input",
     ) as HTMLInputElement;
-
     expect(linear.startBinding).not.toBe(null);
     expect(inputX).not.toBeNull();
     UI.updateInput(inputX, String("204"));
@@ -382,8 +381,7 @@ describe("stats for a non-generic element", () => {
   it("text element", async () => {
     UI.clickTool("text");
     mouse.clickAt(20, 30);
-    const textEditorSelector = ".excalidraw-textEditorContainer > textarea";
-    const editor = await getTextEditor(textEditorSelector, true);
+    const editor = await getTextEditor();
     updateTextEditor(editor, "Hello!");
     act(() => {
       editor.blur();
@@ -403,11 +401,23 @@ describe("stats for a non-generic element", () => {
     UI.updateInput(input, "36");
     expect(text.fontSize).toBe(36);
 
-    // cannot change width or height
-    const width = UI.queryStatsProperty("W")?.querySelector(".drag-input");
-    expect(width).toBeUndefined();
-    const height = UI.queryStatsProperty("H")?.querySelector(".drag-input");
-    expect(height).toBeUndefined();
+    // can change width or height
+    const width = UI.queryStatsProperty("W")?.querySelector(
+      ".drag-input",
+    ) as HTMLInputElement;
+    expect(width).toBeDefined();
+    const height = UI.queryStatsProperty("H")?.querySelector(
+      ".drag-input",
+    ) as HTMLInputElement;
+    expect(height).toBeDefined();
+
+    const textHeightBeforeWrapping = text.height;
+    const textBeforeWrapping = text.text;
+    const originalTextBeforeWrapping = textBeforeWrapping;
+    UI.updateInput(width, "30");
+    expect(text.height).toBeGreaterThan(textHeightBeforeWrapping);
+    expect(text.text).not.toBe(textBeforeWrapping);
+    expect(text.originalText).toBe(originalTextBeforeWrapping);
 
     // min font size is 4
     UI.updateInput(input, "0");
@@ -576,8 +586,7 @@ describe("stats for multiple elements", () => {
     // text, rectangle, frame
     UI.clickTool("text");
     mouse.clickAt(20, 30);
-    const textEditorSelector = ".excalidraw-textEditorContainer > textarea";
-    const editor = await getTextEditor(textEditorSelector, true);
+    const editor = await getTextEditor();
     updateTextEditor(editor, "Hello!");
     act(() => {
       editor.blur();
@@ -630,12 +639,11 @@ describe("stats for multiple elements", () => {
     ) as HTMLInputElement;
     expect(fontSize).toBeDefined();
 
-    // changing width does not affect text
     UI.updateInput(width, "200");
 
     expect(rectangle?.width).toBe(200);
     expect(frame.width).toBe(200);
-    expect(text?.width).not.toBe(200);
+    expect(text?.width).toBe(200);
 
     UI.updateInput(angle, "40");
 
@@ -657,6 +665,7 @@ describe("stats for multiple elements", () => {
 
       mouse.reset();
       Keyboard.withModifierKeys({ shift: true }, () => {
+        mouse.moveTo(10, 0);
         mouse.click();
       });
 
@@ -728,3 +737,196 @@ describe("stats for multiple elements", () => {
     expect(newGroupHeight).toBeCloseTo(500, 4);
   });
 });
+
+describe("frame resizing behavior", () => {
+  beforeEach(async () => {
+    localStorage.clear();
+    renderStaticScene.mockClear();
+    reseed(7);
+    setDateTimeForTests("201933152653");
+
+    await render(<Excalidraw handleKeyboardGlobally={true} />);
+
+    API.setElements([]);
+
+    fireEvent.contextMenu(GlobalTestState.interactiveCanvas, {
+      button: 2,
+      clientX: 1,
+      clientY: 1,
+    });
+    const contextMenu = UI.queryContextMenu();
+    fireEvent.click(queryByTestId(contextMenu!, "stats")!);
+    stats = UI.queryStats();
+  });
+
+  beforeAll(() => {
+    mockBoundingClientRect();
+  });
+
+  afterAll(() => {
+    restoreOriginalGetBoundingClientRect();
+  });
+
+  it("should add shapes to frame when resizing frame to encompass them", () => {
+    // Create a frame
+    const frame = API.createElement({
+      type: "frame",
+      x: 0,
+      y: 0,
+      width: 100,
+      height: 100,
+    });
+
+    // Create a rectangle outside the frame
+    const rectangle = API.createElement({
+      type: "rectangle",
+      x: 150,
+      y: 50,
+      width: 50,
+      height: 50,
+    });
+
+    API.setElements([frame, rectangle]);
+
+    // Initially, rectangle should not be in the frame
+    expect(rectangle.frameId).toBe(null);
+
+    // Select the frame
+    API.setAppState({
+      selectedElementIds: {
+        [frame.id]: true,
+      },
+    });
+
+    elementStats = stats?.querySelector("#elementStats");
+
+    // Find the width input and update it to encompass the rectangle
+    const widthInput = UI.queryStatsProperty("W")?.querySelector(
+      ".drag-input",
+    ) as HTMLInputElement;
+
+    expect(widthInput).toBeDefined();
+    expect(widthInput.value).toBe("100");
+
+    // Resize frame to width 250, which should encompass the rectangle
+    UI.updateInput(widthInput, "250");
+
+    // After resizing, the rectangle should now be part of the frame
+    expect(h.elements.find((el) => el.id === rectangle.id)?.frameId).toBe(
+      frame.id,
+    );
+  });
+
+  it("should add multiple shapes when frame encompasses them through height resize", () => {
+    const frame = API.createElement({
+      type: "frame",
+      x: 0,
+      y: 0,
+      width: 200,
+      height: 100,
+    });
+
+    const rectangle1 = API.createElement({
+      type: "rectangle",
+      x: 50,
+      y: 150,
+      width: 50,
+      height: 50,
+    });
+
+    const rectangle2 = API.createElement({
+      type: "rectangle",
+      x: 100,
+      y: 180,
+      width: 40,
+      height: 40,
+    });
+
+    API.setElements([frame, rectangle1, rectangle2]);
+
+    // Initially, rectangles should not be in the frame
+    expect(rectangle1.frameId).toBe(null);
+    expect(rectangle2.frameId).toBe(null);
+
+    // Select the frame
+    API.setAppState({
+      selectedElementIds: {
+        [frame.id]: true,
+      },
+    });
+
+    elementStats = stats?.querySelector("#elementStats");
+
+    // Resize frame height to encompass both rectangles
+    const heightInput = UI.queryStatsProperty("H")?.querySelector(
+      ".drag-input",
+    ) as HTMLInputElement;
+
+    // Resize frame to height 250, which should encompass both rectangles
+    UI.updateInput(heightInput, "250");
+
+    // After resizing, both rectangles should now be part of the frame
+    expect(h.elements.find((el) => el.id === rectangle1.id)?.frameId).toBe(
+      frame.id,
+    );
+    expect(h.elements.find((el) => el.id === rectangle2.id)?.frameId).toBe(
+      frame.id,
+    );
+  });
+
+  it("should not affect shapes that remain outside frame after resize", () => {
+    const frame = API.createElement({
+      type: "frame",
+      x: 0,
+      y: 0,
+      width: 100,
+      height: 100,
+    });
+
+    const insideRect = API.createElement({
+      type: "rectangle",
+      x: 120,
+      y: 50,
+      width: 30,
+      height: 30,
+    });
+
+    const outsideRect = API.createElement({
+      type: "rectangle",
+      x: 300,
+      y: 50,
+      width: 30,
+      height: 30,
+    });
+
+    API.setElements([frame, insideRect, outsideRect]);
+
+    // Initially, both rectangles should not be in the frame
+    expect(insideRect.frameId).toBe(null);
+    expect(outsideRect.frameId).toBe(null);
+
+    // Select the frame
+    API.setAppState({
+      selectedElementIds: {
+        [frame.id]: true,
+      },
+    });
+
+    elementStats = stats?.querySelector("#elementStats");
+
+    // Resize frame width to 200, which should only encompass insideRect
+    const widthInput = UI.queryStatsProperty("W")?.querySelector(
+      ".drag-input",
+    ) as HTMLInputElement;
+
+    UI.updateInput(widthInput, "200");
+
+    // After resizing, only insideRect should be in the frame
+    expect(h.elements.find((el) => el.id === insideRect.id)?.frameId).toBe(
+      frame.id,
+    );
+    expect(h.elements.find((el) => el.id === outsideRect.id)?.frameId).toBe(
+      null,
+    );
+  });
+});

packages/excalidraw/components/Stats/utils.ts

@@ -1,7 +1,7 @@
 import { pointFrom, pointRotateRads } from "@excalidraw/math";
 
 import { getBoundTextElement } from "@excalidraw/element";
-import { isFrameLikeElement, isTextElement } from "@excalidraw/element";
+import { isFrameLikeElement } from "@excalidraw/element";
 
 import {
   getSelectedGroupIds,
@@ -41,12 +41,6 @@ export const isPropertyEditable = (
   element: ExcalidrawElement,
   property: keyof ExcalidrawElement,
 ) => {
-  if (property === "height" && isTextElement(element)) {
-    return false;
-  }
-  if (property === "width" && isTextElement(element)) {
-    return false;
-  }
   if (property === "angle" && isFrameLikeElement(element)) {
     return false;
   }

packages/excalidraw/components/canvases/InteractiveCanvas.tsx

@@ -192,13 +192,11 @@ const getRelevantAppStateProps = (
   viewModeEnabled: appState.viewModeEnabled,
   openDialog: appState.openDialog,
   editingGroupId: appState.editingGroupId,
-  editingLinearElement: appState.editingLinearElement,
   selectedElementIds: appState.selectedElementIds,
   frameToHighlight: appState.frameToHighlight,
   offsetLeft: appState.offsetLeft,
   offsetTop: appState.offsetTop,
   theme: appState.theme,
-  pendingImageElementId: appState.pendingImageElementId,
   selectionElement: appState.selectionElement,
   selectedGroupIds: appState.selectedGroupIds,
   selectedLinearElement: appState.selectedLinearElement,

packages/excalidraw/components/canvases/StaticCanvas.tsx

@@ -100,7 +100,6 @@ const getRelevantAppStateProps = (appState: AppState): StaticCanvasAppState => {
     offsetLeft: appState.offsetLeft,
     offsetTop: appState.offsetTop,
     theme: appState.theme,
-    pendingImageElementId: appState.pendingImageElementId,
     shouldCacheIgnoreZoom: appState.shouldCacheIgnoreZoom,
     viewBackgroundColor: appState.viewBackgroundColor,
     exportScale: appState.exportScale,

packages/excalidraw/components/dropdownMenu/DropdownMenu.scss

@@ -19,6 +19,8 @@
         border-radius: var(--border-radius-lg);
         position: relative;
         transition: box-shadow 0.5s ease-in-out;
+        display: flex;
+        flex-direction: column;
 
         &.zen-mode {
           box-shadow: none;
@@ -100,6 +102,7 @@
       align-items: center;
       cursor: pointer;
       border-radius: var(--border-radius-md);
+      flex: 1 0 auto;
 
       @media screen and (min-width: 1921px) {
         height: 2.25rem;

packages/excalidraw/components/dropdownMenu/DropdownMenuItemContent.tsx

@@ -1,5 +1,7 @@
 import { useDevice } from "../App";
 
+import { Ellipsify } from "../Ellipsify";
+
 import type { JSX } from "react";
 
 const MenuItemContent = ({
@@ -18,7 +20,7 @@ const MenuItemContent = ({
     <>
       {icon && <div className="dropdown-menu-item__icon">{icon}</div>}
       <div style={textStyle} className="dropdown-menu-item__text">
-        {children}
+        <Ellipsify>{children}</Ellipsify>
       </div>
       {shortcut && !device.editor.isMobile && (
         <div className="dropdown-menu-item__shortcut">{shortcut}</div>

packages/excalidraw/components/footer/Footer.tsx

@@ -2,13 +2,7 @@ import clsx from "clsx";
 
 import { actionShortcuts } from "../../actions";
 import { useTunnels } from "../../context/tunnels";
-import {
-  ExitZenModeAction,
-  FinalizeAction,
-  UndoRedoActions,
-  ZoomActions,
-} from "../Actions";
-import { useDevice } from "../App";
+import { ExitZenModeAction, UndoRedoActions, ZoomActions } from "../Actions";
 import { HelpButton } from "../HelpButton";
 import { Section } from "../Section";
 import Stack from "../Stack";
@@ -29,10 +23,6 @@ const Footer = ({
 }) => {
   const { FooterCenterTunnel, WelcomeScreenHelpHintTunnel } = useTunnels();
 
-  const device = useDevice();
-  const showFinalize =
-    !appState.viewModeEnabled && appState.multiElement && device.isTouchScreen;
-
   return (
     <footer
       role="contentinfo"
@@ -60,15 +50,6 @@ const Footer = ({
                 })}
               />
             )}
-            {showFinalize && (
-              <FinalizeAction
-                renderAction={actionManager.renderAction}
-                className={clsx("zen-mode-transition", {
-                  "layer-ui__wrapper__footer-left--transition-left":
-                    appState.zenModeEnabled,
-                })}
-              />
-            )}
           </Section>
         </Stack.Col>
       </div>

packages/excalidraw/components/hyperlink/Hyperlink.tsx

@@ -463,7 +463,7 @@ const shouldHideLinkPopup = (
 
   const threshold = 15 / appState.zoom.value;
   // hitbox to prevent hiding when hovered in element bounding box
-  if (hitElementBoundingBox(sceneX, sceneY, element, elementsMap)) {
+  if (hitElementBoundingBox(pointFrom(sceneX, sceneY), element, elementsMap)) {
     return false;
   }
   const [x1, y1, x2] = getElementAbsoluteCoords(element, elementsMap);

packages/excalidraw/components/hyperlink/helpers.ts

@@ -92,7 +92,7 @@ export const isPointHittingLink = (
   if (
     !isMobile &&
     appState.viewModeEnabled &&
-    hitElementBoundingBox(x, y, element, elementsMap)
+    hitElementBoundingBox(pointFrom(x, y), element, elementsMap)
   ) {
     return true;
   }

packages/excalidraw/components/icons.tsx

@@ -129,6 +129,21 @@ export const PinIcon = createIcon(
   tablerIconProps,
 );
 
+export const polygonIcon = createIcon(
+  <g strokeWidth={1.25}>
+    <path stroke="none" d="M0 0h24v24H0z" fill="none" />
+    <path d="M12 5m-2 0a2 2 0 1 0 4 0a2 2 0 1 0 -4 0" />
+    <path d="M19 8m-2 0a2 2 0 1 0 4 0a2 2 0 1 0 -4 0" />
+    <path d="M5 11m-2 0a2 2 0 1 0 4 0a2 2 0 1 0 -4 0" />
+    <path d="M15 19m-2 0a2 2 0 1 0 4 0a2 2 0 1 0 -4 0" />
+    <path d="M6.5 9.5l3.5 -3" />
+    <path d="M14 5.5l3 1.5" />
+    <path d="M18.5 10l-2.5 7" />
+    <path d="M13.5 17.5l-7 -5" />
+  </g>,
+  tablerIconProps,
+);
+
 // tabler-icons: lock-open (via Figma)
 export const UnlockedIcon = createIcon(
   <g>

packages/excalidraw/data/__snapshots__/transform.test.ts.snap

@@ -175,7 +175,7 @@ exports[`Test Transform > Test arrow bindings > should bind arrows to existing s
   "startBinding": {
     "elementId": "diamond-1",
     "focus": 0,
-    "gap": 4.545343408287929,
+    "gap": 4.535423522449215,
   },
   "strokeColor": "#e67700",
   "strokeStyle": "solid",
@@ -335,7 +335,7 @@ exports[`Test Transform > Test arrow bindings > should bind arrows to existing t
   "endBinding": {
     "elementId": "text-2",
     "focus": 0,
-    "gap": 14,
+    "gap": 16,
   },
   "fillStyle": "solid",
   "frameId": null,
@@ -948,6 +948,7 @@ exports[`Test Transform > should transform linear elements 3`] = `
       0,
     ],
   ],
+  "polygon": false,
   "roughness": 1,
   "roundness": null,
   "seed": Any<Number>,
@@ -995,6 +996,7 @@ exports[`Test Transform > should transform linear elements 4`] = `
       0,
     ],
   ],
+  "polygon": false,
   "roughness": 1,
   "roundness": null,
   "seed": Any<Number>,
@@ -1538,7 +1540,7 @@ exports[`Test Transform > should transform the elements correctly when linear el
   "endBinding": {
     "elementId": "B",
     "focus": 0,
-    "gap": 14,
+    "gap": 32,
   },
   "fillStyle": "solid",
   "frameId": null,
@@ -1789,7 +1791,7 @@ exports[`Test Transform > should transform the elements correctly when linear el
   "versionNonce": Any<Number>,
   "verticalAlign": "middle",
   "width": 120,
-  "x": 187.7545,
+  "x": 187.75450000000004,
   "y": 44.5,
 }
 `;

packages/excalidraw/data/restore.ts

@@ -18,7 +18,7 @@ import {
   normalizeLink,
   getLineHeight,
 } from "@excalidraw/common";
-import { getNonDeletedElements } from "@excalidraw/element";
+import { getNonDeletedElements, isValidPolygon } from "@excalidraw/element";
 import { normalizeFixedPoint } from "@excalidraw/element";
 import {
   updateElbowArrowPoints,
@@ -34,6 +34,7 @@ import {
   isElbowArrow,
   isFixedPointBinding,
   isLinearElement,
+  isLineElement,
   isTextElement,
   isUsingAdaptiveRadius,
 } from "@excalidraw/element";
@@ -323,7 +324,8 @@ const restoreElement = (
           : element.points;
 
       if (points[0][0] !== 0 || points[0][1] !== 0) {
-        ({ points, x, y } = LinearElementEditor.getNormalizedPoints(element));
+        ({ points, x, y } =
+          LinearElementEditor.getNormalizeElementPointsAndCoords(element));
       }
 
       return restoreElementWithProperties(element, {
@@ -339,6 +341,13 @@ const restoreElement = (
         points,
         x,
         y,
+        ...(isLineElement(element)
+          ? {
+              polygon: isValidPolygon(element.points)
+                ? element.polygon ?? false
+                : false,
+            }
+          : {}),
         ...getSizeFromPoints(points),
       });
     case "arrow": {
@@ -351,7 +360,8 @@ const restoreElement = (
           : element.points;
 
       if (points[0][0] !== 0 || points[0][1] !== 0) {
-        ({ points, x, y } = LinearElementEditor.getNormalizedPoints(element));
+        ({ points, x, y } =
+          LinearElementEditor.getNormalizeElementPointsAndCoords(element));
       }
 
       const base = {

packages/excalidraw/data/transform.test.ts

@@ -781,7 +781,7 @@ describe("Test Transform", () => {
       expect((arrow as ExcalidrawArrowElement).endBinding).toStrictEqual({
         elementId: "rect-1",
         focus: -0,
-        gap: 14,
+        gap: 25,
       });
       expect(rect.boundElements).toStrictEqual([
         {

packages/excalidraw/data/transform.ts

@@ -466,7 +466,7 @@ const bindLinearElementToElement = (
 
   Object.assign(
     linearElement,
-    LinearElementEditor.getNormalizedPoints({
+    LinearElementEditor.getNormalizeElementPointsAndCoords({
       ...linearElement,
       points: newPoints,
     }),

packages/excalidraw/eraser/index.ts

@@ -1,25 +1,19 @@
 import { arrayToMap, easeOut, THEME } from "@excalidraw/common";
-import { getElementLineSegments } from "@excalidraw/element";
 import {
-  lineSegment,
-  lineSegmentIntersectionPoints,
-  pointFrom,
-} from "@excalidraw/math";
+  computeBoundTextPosition,
+  getBoundTextElement,
+  intersectElementWithLineSegment,
+  isPointInElement,
+} from "@excalidraw/element";
+import { lineSegment, pointFrom } from "@excalidraw/math";
 
 import { getElementsInGroup } from "@excalidraw/element";
 
-import { getElementShape } from "@excalidraw/element";
 import { shouldTestInside } from "@excalidraw/element";
-import { isPointInShape } from "@excalidraw/utils/collision";
 import { hasBoundTextElement, isBoundToContainer } from "@excalidraw/element";
 import { getBoundTextElementId } from "@excalidraw/element";
 
-import type { GeometricShape } from "@excalidraw/utils/shape";
-import type {
-  ElementsSegmentsMap,
-  GlobalPoint,
-  LineSegment,
-} from "@excalidraw/math/types";
+import type { GlobalPoint, LineSegment } from "@excalidraw/math/types";
 import type { ElementsMap, ExcalidrawElement } from "@excalidraw/element/types";
 
 import { AnimatedTrail } from "../animated-trail";
@@ -28,15 +22,9 @@ import type { AnimationFrameHandler } from "../animation-frame-handler";
 
 import type App from "../components/App";
 
-// just enough to form a segment; this is sufficient for eraser
-const POINTS_ON_TRAIL = 2;
-
 export class EraserTrail extends AnimatedTrail {
   private elementsToErase: Set<ExcalidrawElement["id"]> = new Set();
   private groupsToErase: Set<ExcalidrawElement["id"]> = new Set();
-  private segmentsCache: Map<string, LineSegment<GlobalPoint>[]> = new Map();
-  private geometricShapesCache: Map<string, GeometricShape<GlobalPoint>> =
-    new Map();
 
   constructor(animationFrameHandler: AnimationFrameHandler, app: App) {
     super(animationFrameHandler, app, {
@@ -79,14 +67,21 @@ export class EraserTrail extends AnimatedTrail {
   }
 
   private updateElementsToBeErased(restoreToErase?: boolean) {
-    let eraserPath: GlobalPoint[] =
+    const eraserPath: GlobalPoint[] =
       super
         .getCurrentTrail()
         ?.originalPoints?.map((p) => pointFrom<GlobalPoint>(p[0], p[1])) || [];
 
+    if (eraserPath.length < 2) {
+      return [];
+    }
+
     // for efficiency and avoid unnecessary calculations,
     // take only POINTS_ON_TRAIL points to form some number of segments
-    eraserPath = eraserPath?.slice(eraserPath.length - POINTS_ON_TRAIL);
+    const pathSegment = lineSegment<GlobalPoint>(
+      eraserPath[eraserPath.length - 1],
+      eraserPath[eraserPath.length - 2],
+    );
 
     const candidateElements = this.app.visibleElements.filter(
       (el) => !el.locked,
@@ -94,28 +89,13 @@ export class EraserTrail extends AnimatedTrail {
 
     const candidateElementsMap = arrayToMap(candidateElements);
 
-    const pathSegments = eraserPath.reduce((acc, point, index) => {
-      if (index === 0) {
-        return acc;
-      }
-      acc.push(lineSegment(eraserPath[index - 1], point));
-      return acc;
-    }, [] as LineSegment<GlobalPoint>[]);
-
-    if (pathSegments.length === 0) {
-      return [];
-    }
-
     for (const element of candidateElements) {
       // restore only if already added to the to-be-erased set
       if (restoreToErase && this.elementsToErase.has(element.id)) {
         const intersects = eraserTest(
-          pathSegments,
+          pathSegment,
           element,
-          this.segmentsCache,
-          this.geometricShapesCache,
           candidateElementsMap,
-          this.app,
         );
 
         if (intersects) {
@@ -148,12 +128,9 @@ export class EraserTrail extends AnimatedTrail {
         }
       } else if (!restoreToErase && !this.elementsToErase.has(element.id)) {
         const intersects = eraserTest(
-          pathSegments,
+          pathSegment,
           element,
-          this.segmentsCache,
-          this.geometricShapesCache,
           candidateElementsMap,
-          this.app,
         );
 
         if (intersects) {
@@ -196,45 +173,37 @@ export class EraserTrail extends AnimatedTrail {
     super.clearTrails();
     this.elementsToErase.clear();
     this.groupsToErase.clear();
-    this.segmentsCache.clear();
   }
 }
 
 const eraserTest = (
-  pathSegments: LineSegment<GlobalPoint>[],
+  pathSegment: LineSegment<GlobalPoint>,
   element: ExcalidrawElement,
-  elementsSegments: ElementsSegmentsMap,
-  shapesCache: Map<string, GeometricShape<GlobalPoint>>,
   elementsMap: ElementsMap,
-  app: App,
 ): boolean => {
-  let shape = shapesCache.get(element.id);
-
-  if (!shape) {
-    shape = getElementShape<GlobalPoint>(element, elementsMap);
-    shapesCache.set(element.id, shape);
-  }
-
-  const lastPoint = pathSegments[pathSegments.length - 1][1];
-  if (shouldTestInside(element) && isPointInShape(lastPoint, shape)) {
+  const lastPoint = pathSegment[1];
+  if (
+    shouldTestInside(element) &&
+    isPointInElement(lastPoint, element, elementsMap)
+  ) {
     return true;
   }
 
-  let elementSegments = elementsSegments.get(element.id);
+  const boundTextElement = getBoundTextElement(element, elementsMap);
 
-  if (!elementSegments) {
-    elementSegments = getElementLineSegments(element, elementsMap);
-    elementsSegments.set(element.id, elementSegments);
-  }
-
-  return pathSegments.some((pathSegment) =>
-    elementSegments?.some(
-      (elementSegment) =>
-        lineSegmentIntersectionPoints(
-          pathSegment,
-          elementSegment,
-          app.getElementHitThreshold(),
-        ) !== null,
-    ),
+  return (
+    intersectElementWithLineSegment(element, elementsMap, pathSegment, 0, true)
+      .length > 0 ||
+    (!!boundTextElement &&
+      intersectElementWithLineSegment(
+        {
+          ...boundTextElement,
+          ...computeBoundTextPosition(element, boundTextElement, elementsMap),
+        },
+        elementsMap,
+        pathSegment,
+        0,
+        true,
+      ).length > 0)
   );
 };