chore: release @excalidraw/excalidraw@18.0.0 🎉 (#9127)

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Marcel Mraz 2025-02-28 16:49:09 +01:00 committed by GitHub
parent 392118bf26
commit ecef5d12f4
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232 changed files with 3412 additions and 2851 deletions

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FROM node:18-bullseye
# Vite wants to open the browser using `open`, so we
# need to install those utils.
RUN apt update -y && apt install -y xdg-utils

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{
// These tasks will run in order when initializing your CodeSandbox project.
"setupTasks": [
{
"name": "Install Dependencies",
"command": "yarn install"
}
],
// These tasks can be run from CodeSandbox. Running one will open a log in the app.
"tasks": {
"build": {
"name": "Build",
"command": "yarn build",
"runAtStart": false
},
"start": {
"name": "Start Example",
"command": "yarn start",
"runAtStart": true,
"preview": {
"port": 3001
}
},
"install-deps": {
"name": "Install Dependencies",
"command": "yarn install",
"restartOn": {
"files": ["yarn.lock"],
"branch": false,
"resume": false
}
}
}
}

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# copied assets
public/**/*.woff2

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import React from "react";
import type * as TExcalidraw from "@excalidraw/excalidraw";
import type { ExcalidrawImperativeAPI } from "@excalidraw/excalidraw/types";
const COMMENT_SVG = (
<svg
xmlns="http://www.w3.org/2000/svg"
width="24"
height="24"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth="2"
strokeLinecap="round"
strokeLinejoin="round"
className="feather feather-message-circle"
>
<path d="M21 11.5a8.38 8.38 0 0 1-.9 3.8 8.5 8.5 0 0 1-7.6 4.7 8.38 8.38 0 0 1-3.8-.9L3 21l1.9-5.7a8.38 8.38 0 0 1-.9-3.8 8.5 8.5 0 0 1 4.7-7.6 8.38 8.38 0 0 1 3.8-.9h.5a8.48 8.48 0 0 1 8 8v.5z"></path>
</svg>
);
const CustomFooter = ({
excalidrawAPI,
excalidrawLib,
}: {
excalidrawAPI: ExcalidrawImperativeAPI;
excalidrawLib: typeof TExcalidraw;
}) => {
const { Button, MIME_TYPES } = excalidrawLib;
return (
<>
<Button
onSelect={() => alert("General Kenobi!")}
style={{ marginLeft: "1rem", width: "auto" }}
title="Hello there!"
>
Hit me
</Button>
<Button
className="custom-element"
onSelect={() => {
excalidrawAPI?.setActiveTool({
type: "custom",
customType: "comment",
});
const url = `data:${MIME_TYPES.svg},${encodeURIComponent(
`<svg
xmlns="http://www.w3.org/2000/svg"
width="24"
height="24"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
stroke-width="2"
stroke-linecap="round"
stroke-linejoin="round"
class="feather feather-message-circle"
>
<path d="M21 11.5a8.38 8.38 0 0 1-.9 3.8 8.5 8.5 0 0 1-7.6 4.7 8.38 8.38 0 0 1-3.8-.9L3 21l1.9-5.7a8.38 8.38 0 0 1-.9-3.8 8.5 8.5 0 0 1 4.7-7.6 8.38 8.38 0 0 1 3.8-.9h.5a8.48 8.48 0 0 1 8 8v.5z"></path>
</svg>`,
)}`;
excalidrawAPI?.setCursor(`url(${url}), auto`);
}}
title="Comments!"
>
{COMMENT_SVG}
</Button>
</>
);
};
export default CustomFooter;

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.App {
font-family: sans-serif;
text-align: center;
.comment-avatar {
background: #faa2c1;
border-radius: 66px 67px 67px 0px;
width: 2rem;
height: 2rem;
padding: 4px;
margin: 4px;
img {
width: 100%;
height: 100%;
border-radius: 50%;
}
}
.app-title {
margin-block-start: 0.83em;
margin-block-end: 0.83em;
}
}
.button-wrapper {
input[type="checkbox"] {
margin: 5px;
}
button {
z-index: 1;
height: 40px;
max-width: 200px;
margin: 10px;
padding: 5px;
}
}
.excalidraw .App-menu_top .buttonList {
display: flex;
}
.excalidraw-wrapper {
height: 800px;
margin: 50px;
position: relative;
overflow: hidden;
}
:root[dir="ltr"]
.excalidraw
.layer-ui__wrapper
.zen-mode-transition.App-menu_bottom--transition-left {
transform: none;
}
.excalidraw .panelColumn {
text-align: left;
}
.export-wrapper {
display: flex;
flex-direction: column;
margin: 50px;
&__checkbox {
display: flex;
}
}
.excalidraw {
--color-primary: #faa2c1;
--color-primary-darker: #f783ac;
--color-primary-darkest: #e64980;
--color-primary-light: #fcc2d7;
button.custom-element {
width: 2rem;
height: 2rem;
}
.custom-footer,
.custom-element {
padding: 0.1rem;
margin: 0 8px;
}
.layer-ui__wrapper__footer.App-menu_bottom {
align-items: stretch;
}
// till its merged in OSS
.App-toolbar-container .mobile-misc-tools-container {
position: absolute;
}
}

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import React, {
useEffect,
useState,
useRef,
useCallback,
Children,
cloneElement,
} from "react";
import ExampleSidebar from "./sidebar/ExampleSidebar";
import type * as TExcalidraw from "@excalidraw/excalidraw";
import { nanoid } from "nanoid";
import type { ResolvablePromise } from "../utils";
import {
resolvablePromise,
distance2d,
fileOpen,
withBatchedUpdates,
withBatchedUpdatesThrottled,
} from "../utils";
import CustomFooter from "./CustomFooter";
import MobileFooter from "./MobileFooter";
import initialData from "../initialData";
import type {
AppState,
BinaryFileData,
ExcalidrawImperativeAPI,
ExcalidrawInitialDataState,
Gesture,
LibraryItems,
PointerDownState as ExcalidrawPointerDownState,
} from "@excalidraw/excalidraw/types";
import type {
NonDeletedExcalidrawElement,
Theme,
} from "@excalidraw/excalidraw/element/types";
import type { ImportedLibraryData } from "@excalidraw/excalidraw/data/types";
import "./ExampleApp.scss";
type Comment = {
x: number;
y: number;
value: string;
id?: string;
};
type PointerDownState = {
x: number;
y: number;
hitElement: Comment;
onMove: any;
onUp: any;
hitElementOffsets: {
x: number;
y: number;
};
};
const COMMENT_ICON_DIMENSION = 32;
const COMMENT_INPUT_HEIGHT = 50;
const COMMENT_INPUT_WIDTH = 150;
export interface AppProps {
appTitle: string;
useCustom: (api: ExcalidrawImperativeAPI | null, customArgs?: any[]) => void;
customArgs?: any[];
children: React.ReactNode;
excalidrawLib: typeof TExcalidraw;
}
export default function ExampleApp({
appTitle,
useCustom,
customArgs,
children,
excalidrawLib,
}: AppProps) {
const {
exportToCanvas,
exportToSvg,
exportToBlob,
exportToClipboard,
useHandleLibrary,
MIME_TYPES,
sceneCoordsToViewportCoords,
viewportCoordsToSceneCoords,
restoreElements,
Sidebar,
Footer,
WelcomeScreen,
MainMenu,
LiveCollaborationTrigger,
convertToExcalidrawElements,
TTDDialog,
TTDDialogTrigger,
ROUNDNESS,
loadSceneOrLibraryFromBlob,
} = excalidrawLib;
const appRef = useRef<any>(null);
const [viewModeEnabled, setViewModeEnabled] = useState(false);
const [zenModeEnabled, setZenModeEnabled] = useState(false);
const [gridModeEnabled, setGridModeEnabled] = useState(false);
const [blobUrl, setBlobUrl] = useState<string>("");
const [canvasUrl, setCanvasUrl] = useState<string>("");
const [exportWithDarkMode, setExportWithDarkMode] = useState(false);
const [exportEmbedScene, setExportEmbedScene] = useState(false);
const [theme, setTheme] = useState<Theme>("light");
const [disableImageTool, setDisableImageTool] = useState(false);
const [isCollaborating, setIsCollaborating] = useState(false);
const [commentIcons, setCommentIcons] = useState<{ [id: string]: Comment }>(
{},
);
const [comment, setComment] = useState<Comment | null>(null);
const initialStatePromiseRef = useRef<{
promise: ResolvablePromise<ExcalidrawInitialDataState | null>;
}>({ promise: null! });
if (!initialStatePromiseRef.current.promise) {
initialStatePromiseRef.current.promise =
resolvablePromise<ExcalidrawInitialDataState | null>();
}
const [excalidrawAPI, setExcalidrawAPI] =
useState<ExcalidrawImperativeAPI | null>(null);
useCustom(excalidrawAPI, customArgs);
useHandleLibrary({ excalidrawAPI });
useEffect(() => {
if (!excalidrawAPI) {
return;
}
const fetchData = async () => {
const res = await fetch("/images/rocket.jpeg");
const imageData = await res.blob();
const reader = new FileReader();
reader.readAsDataURL(imageData);
reader.onload = function () {
const imagesArray: BinaryFileData[] = [
{
id: "rocket" as BinaryFileData["id"],
dataURL: reader.result as BinaryFileData["dataURL"],
mimeType: MIME_TYPES.jpg,
created: 1644915140367,
lastRetrieved: 1644915140367,
},
];
//@ts-ignore
initialStatePromiseRef.current.promise.resolve({
...initialData,
elements: convertToExcalidrawElements(initialData.elements),
});
excalidrawAPI.addFiles(imagesArray);
};
};
fetchData();
}, [excalidrawAPI, convertToExcalidrawElements, MIME_TYPES]);
const renderExcalidraw = (children: React.ReactNode) => {
const Excalidraw: any = Children.toArray(children).find(
(child) =>
React.isValidElement(child) &&
typeof child.type !== "string" &&
//@ts-ignore
child.type.displayName === "Excalidraw",
);
if (!Excalidraw) {
return;
}
const newElement = cloneElement(
Excalidraw,
{
excalidrawAPI: (api: ExcalidrawImperativeAPI) => setExcalidrawAPI(api),
initialData: initialStatePromiseRef.current.promise,
onChange: (
elements: NonDeletedExcalidrawElement[],
state: AppState,
) => {
console.info("Elements :", elements, "State : ", state);
},
onPointerUpdate: (payload: {
pointer: { x: number; y: number };
button: "down" | "up";
pointersMap: Gesture["pointers"];
}) => setPointerData(payload),
viewModeEnabled,
zenModeEnabled,
gridModeEnabled,
theme,
name: "Custom name of drawing",
UIOptions: {
canvasActions: {
loadScene: false,
},
tools: { image: !disableImageTool },
},
renderTopRightUI,
onLinkOpen,
onPointerDown,
onScrollChange: rerenderCommentIcons,
validateEmbeddable: true,
},
<>
{excalidrawAPI && (
<Footer>
<CustomFooter
excalidrawAPI={excalidrawAPI}
excalidrawLib={excalidrawLib}
/>
</Footer>
)}
<WelcomeScreen />
<Sidebar name="custom">
<Sidebar.Tabs>
<Sidebar.Header />
<Sidebar.Tab tab="one">Tab one!</Sidebar.Tab>
<Sidebar.Tab tab="two">Tab two!</Sidebar.Tab>
<Sidebar.TabTriggers>
<Sidebar.TabTrigger tab="one">One</Sidebar.TabTrigger>
<Sidebar.TabTrigger tab="two">Two</Sidebar.TabTrigger>
</Sidebar.TabTriggers>
</Sidebar.Tabs>
</Sidebar>
<Sidebar.Trigger
name="custom"
tab="one"
style={{
position: "absolute",
left: "50%",
transform: "translateX(-50%)",
bottom: "20px",
zIndex: 9999999999999999,
}}
>
Toggle Custom Sidebar
</Sidebar.Trigger>
{renderMenu()}
{excalidrawAPI && (
<TTDDialogTrigger icon={<span>😀</span>}>
Text to diagram
</TTDDialogTrigger>
)}
<TTDDialog
onTextSubmit={async (_) => {
console.info("submit");
// sleep for 2s
await new Promise((resolve) => setTimeout(resolve, 2000));
throw new Error("error, go away now");
// return "dummy";
}}
/>
</>,
);
return newElement;
};
const renderTopRightUI = (isMobile: boolean) => {
return (
<>
{!isMobile && (
<LiveCollaborationTrigger
isCollaborating={isCollaborating}
onSelect={() => {
window.alert("Collab dialog clicked");
}}
/>
)}
<button
onClick={() => alert("This is an empty top right UI")}
style={{ height: "2.5rem" }}
>
Click me
</button>
</>
);
};
const loadSceneOrLibrary = async () => {
const file = await fileOpen({ description: "Excalidraw or library file" });
const contents = await loadSceneOrLibraryFromBlob(file, null, null);
if (contents.type === MIME_TYPES.excalidraw) {
excalidrawAPI?.updateScene(contents.data as any);
} else if (contents.type === MIME_TYPES.excalidrawlib) {
excalidrawAPI?.updateLibrary({
libraryItems: (contents.data as ImportedLibraryData).libraryItems!,
openLibraryMenu: true,
});
}
};
const updateScene = () => {
const sceneData = {
elements: restoreElements(
convertToExcalidrawElements([
{
type: "rectangle",
id: "rect-1",
fillStyle: "hachure",
strokeWidth: 1,
strokeStyle: "solid",
roughness: 1,
angle: 0,
x: 100.50390625,
y: 93.67578125,
strokeColor: "#c92a2a",
width: 186.47265625,
height: 141.9765625,
seed: 1968410350,
roundness: {
type: ROUNDNESS.ADAPTIVE_RADIUS,
value: 32,
},
},
{
type: "arrow",
x: 300,
y: 150,
start: { id: "rect-1" },
end: { type: "ellipse" },
},
{
type: "text",
x: 300,
y: 100,
text: "HELLO WORLD!",
},
]),
null,
),
appState: {
viewBackgroundColor: "#edf2ff",
},
};
excalidrawAPI?.updateScene(sceneData);
};
const onLinkOpen = useCallback(
(
element: NonDeletedExcalidrawElement,
event: CustomEvent<{
nativeEvent: MouseEvent | React.PointerEvent<HTMLCanvasElement>;
}>,
) => {
const link = element.link!;
const { nativeEvent } = event.detail;
const isNewTab = nativeEvent.ctrlKey || nativeEvent.metaKey;
const isNewWindow = nativeEvent.shiftKey;
const isInternalLink =
link.startsWith("/") || link.includes(window.location.origin);
if (isInternalLink && !isNewTab && !isNewWindow) {
// signal that we're handling the redirect ourselves
event.preventDefault();
// do a custom redirect, such as passing to react-router
// ...
}
},
[],
);
const onCopy = async (type: "png" | "svg" | "json") => {
if (!excalidrawAPI) {
return false;
}
await exportToClipboard({
elements: excalidrawAPI.getSceneElements(),
appState: excalidrawAPI.getAppState(),
files: excalidrawAPI.getFiles(),
type,
});
window.alert(`Copied to clipboard as ${type} successfully`);
};
const [pointerData, setPointerData] = useState<{
pointer: { x: number; y: number };
button: "down" | "up";
pointersMap: Gesture["pointers"];
} | null>(null);
const onPointerDown = (
activeTool: AppState["activeTool"],
pointerDownState: ExcalidrawPointerDownState,
) => {
if (activeTool.type === "custom" && activeTool.customType === "comment") {
const { x, y } = pointerDownState.origin;
setComment({ x, y, value: "" });
}
};
const rerenderCommentIcons = () => {
if (!excalidrawAPI) {
return false;
}
const commentIconsElements = appRef.current.querySelectorAll(
".comment-icon",
) as HTMLElement[];
commentIconsElements.forEach((ele) => {
const id = ele.id;
const appstate = excalidrawAPI.getAppState();
const { x, y } = sceneCoordsToViewportCoords(
{ sceneX: commentIcons[id].x, sceneY: commentIcons[id].y },
appstate,
);
ele.style.left = `${
x - COMMENT_ICON_DIMENSION / 2 - appstate!.offsetLeft
}px`;
ele.style.top = `${
y - COMMENT_ICON_DIMENSION / 2 - appstate!.offsetTop
}px`;
});
};
const onPointerMoveFromPointerDownHandler = (
pointerDownState: PointerDownState,
) => {
return withBatchedUpdatesThrottled((event) => {
if (!excalidrawAPI) {
return false;
}
const { x, y } = viewportCoordsToSceneCoords(
{
clientX: event.clientX - pointerDownState.hitElementOffsets.x,
clientY: event.clientY - pointerDownState.hitElementOffsets.y,
},
excalidrawAPI.getAppState(),
);
setCommentIcons({
...commentIcons,
[pointerDownState.hitElement.id!]: {
...commentIcons[pointerDownState.hitElement.id!],
x,
y,
},
});
});
};
const onPointerUpFromPointerDownHandler = (
pointerDownState: PointerDownState,
) => {
return withBatchedUpdates((event) => {
window.removeEventListener("pointermove", pointerDownState.onMove);
window.removeEventListener("pointerup", pointerDownState.onUp);
excalidrawAPI?.setActiveTool({ type: "selection" });
const distance = distance2d(
pointerDownState.x,
pointerDownState.y,
event.clientX,
event.clientY,
);
if (distance === 0) {
if (!comment) {
setComment({
x: pointerDownState.hitElement.x + 60,
y: pointerDownState.hitElement.y,
value: pointerDownState.hitElement.value,
id: pointerDownState.hitElement.id,
});
} else {
setComment(null);
}
}
});
};
const renderCommentIcons = () => {
return Object.values(commentIcons).map((commentIcon) => {
if (!excalidrawAPI) {
return false;
}
const appState = excalidrawAPI.getAppState();
const { x, y } = sceneCoordsToViewportCoords(
{ sceneX: commentIcon.x, sceneY: commentIcon.y },
excalidrawAPI.getAppState(),
);
return (
<div
id={commentIcon.id}
key={commentIcon.id}
style={{
top: `${y - COMMENT_ICON_DIMENSION / 2 - appState!.offsetTop}px`,
left: `${x - COMMENT_ICON_DIMENSION / 2 - appState!.offsetLeft}px`,
position: "absolute",
zIndex: 1,
width: `${COMMENT_ICON_DIMENSION}px`,
height: `${COMMENT_ICON_DIMENSION}px`,
cursor: "pointer",
touchAction: "none",
}}
className="comment-icon"
onPointerDown={(event) => {
event.preventDefault();
if (comment) {
commentIcon.value = comment.value;
saveComment();
}
const pointerDownState: any = {
x: event.clientX,
y: event.clientY,
hitElement: commentIcon,
hitElementOffsets: { x: event.clientX - x, y: event.clientY - y },
};
const onPointerMove =
onPointerMoveFromPointerDownHandler(pointerDownState);
const onPointerUp =
onPointerUpFromPointerDownHandler(pointerDownState);
window.addEventListener("pointermove", onPointerMove);
window.addEventListener("pointerup", onPointerUp);
pointerDownState.onMove = onPointerMove;
pointerDownState.onUp = onPointerUp;
excalidrawAPI?.setActiveTool({
type: "custom",
customType: "comment",
});
}}
>
<div className="comment-avatar">
<img src="images/doremon.png" alt="doremon" />
</div>
</div>
);
});
};
const saveComment = () => {
if (!comment) {
return;
}
if (!comment.id && !comment.value) {
setComment(null);
return;
}
const id = comment.id || nanoid();
setCommentIcons({
...commentIcons,
[id]: {
x: comment.id ? comment.x - 60 : comment.x,
y: comment.y,
id,
value: comment.value,
},
});
setComment(null);
};
const renderComment = () => {
if (!comment) {
return null;
}
const appState = excalidrawAPI?.getAppState()!;
const { x, y } = sceneCoordsToViewportCoords(
{ sceneX: comment.x, sceneY: comment.y },
appState,
);
let top = y - COMMENT_ICON_DIMENSION / 2 - appState.offsetTop;
let left = x - COMMENT_ICON_DIMENSION / 2 - appState.offsetLeft;
if (
top + COMMENT_INPUT_HEIGHT <
appState.offsetTop + COMMENT_INPUT_HEIGHT
) {
top = COMMENT_ICON_DIMENSION / 2;
}
if (top + COMMENT_INPUT_HEIGHT > appState.height) {
top = appState.height - COMMENT_INPUT_HEIGHT - COMMENT_ICON_DIMENSION / 2;
}
if (
left + COMMENT_INPUT_WIDTH <
appState.offsetLeft + COMMENT_INPUT_WIDTH
) {
left = COMMENT_ICON_DIMENSION / 2;
}
if (left + COMMENT_INPUT_WIDTH > appState.width) {
left = appState.width - COMMENT_INPUT_WIDTH - COMMENT_ICON_DIMENSION / 2;
}
return (
<textarea
className="comment"
style={{
top: `${top}px`,
left: `${left}px`,
position: "absolute",
zIndex: 1,
height: `${COMMENT_INPUT_HEIGHT}px`,
width: `${COMMENT_INPUT_WIDTH}px`,
}}
ref={(ref) => {
setTimeout(() => ref?.focus());
}}
placeholder={comment.value ? "Reply" : "Comment"}
value={comment.value}
onChange={(event) => {
setComment({ ...comment, value: event.target.value });
}}
onBlur={saveComment}
onKeyDown={(event) => {
if (!event.shiftKey && event.key === "Enter") {
event.preventDefault();
saveComment();
}
}}
/>
);
};
const renderMenu = () => {
return (
<MainMenu>
<MainMenu.DefaultItems.SaveAsImage />
<MainMenu.DefaultItems.Export />
<MainMenu.Separator />
<MainMenu.DefaultItems.LiveCollaborationTrigger
isCollaborating={isCollaborating}
onSelect={() => window.alert("You clicked on collab button")}
/>
<MainMenu.Group title="Excalidraw links">
<MainMenu.DefaultItems.Socials />
</MainMenu.Group>
<MainMenu.Separator />
<MainMenu.ItemCustom>
<button
style={{ height: "2rem" }}
onClick={() => window.alert("custom menu item")}
>
custom item
</button>
</MainMenu.ItemCustom>
<MainMenu.DefaultItems.Help />
{excalidrawAPI && (
<MobileFooter
excalidrawLib={excalidrawLib}
excalidrawAPI={excalidrawAPI}
/>
)}
</MainMenu>
);
};
return (
<div className="App" ref={appRef}>
<h1>{appTitle}</h1>
{/* TODO fix type */}
<ExampleSidebar>
<div className="button-wrapper">
<button onClick={loadSceneOrLibrary}>Load Scene or Library</button>
<button className="update-scene" onClick={updateScene}>
Update Scene
</button>
<button
className="reset-scene"
onClick={() => {
excalidrawAPI?.resetScene();
}}
>
Reset Scene
</button>
<button
onClick={() => {
const libraryItems: LibraryItems = [
{
status: "published",
id: "1",
created: 1,
elements: initialData.libraryItems[1] as any,
},
{
status: "unpublished",
id: "2",
created: 2,
elements: initialData.libraryItems[1] as any,
},
];
excalidrawAPI?.updateLibrary({
libraryItems,
});
}}
>
Update Library
</button>
<label>
<input
type="checkbox"
checked={viewModeEnabled}
onChange={() => setViewModeEnabled(!viewModeEnabled)}
/>
View mode
</label>
<label>
<input
type="checkbox"
checked={zenModeEnabled}
onChange={() => setZenModeEnabled(!zenModeEnabled)}
/>
Zen mode
</label>
<label>
<input
type="checkbox"
checked={gridModeEnabled}
onChange={() => setGridModeEnabled(!gridModeEnabled)}
/>
Grid mode
</label>
<label>
<input
type="checkbox"
checked={theme === "dark"}
onChange={() => {
setTheme(theme === "light" ? "dark" : "light");
}}
/>
Switch to Dark Theme
</label>
<label>
<input
type="checkbox"
checked={disableImageTool === true}
onChange={() => {
setDisableImageTool(!disableImageTool);
}}
/>
Disable Image Tool
</label>
<label>
<input
type="checkbox"
checked={isCollaborating}
onChange={() => {
if (!isCollaborating) {
const collaborators = new Map();
collaborators.set("id1", {
username: "Doremon",
avatarUrl: "images/doremon.png",
});
collaborators.set("id2", {
username: "Excalibot",
avatarUrl: "images/excalibot.png",
});
collaborators.set("id3", {
username: "Pika",
avatarUrl: "images/pika.jpeg",
});
collaborators.set("id4", {
username: "fallback",
avatarUrl: "https://example.com",
});
excalidrawAPI?.updateScene({ collaborators });
} else {
excalidrawAPI?.updateScene({
collaborators: new Map(),
});
}
setIsCollaborating(!isCollaborating);
}}
/>
Show collaborators
</label>
<div>
<button onClick={onCopy.bind(null, "png")}>
Copy to Clipboard as PNG
</button>
<button onClick={onCopy.bind(null, "svg")}>
Copy to Clipboard as SVG
</button>
<button onClick={onCopy.bind(null, "json")}>
Copy to Clipboard as JSON
</button>
</div>
<div
style={{
display: "flex",
gap: "1em",
justifyContent: "center",
marginTop: "1em",
}}
>
<div>x: {pointerData?.pointer.x ?? 0}</div>
<div>y: {pointerData?.pointer.y ?? 0}</div>
</div>
</div>
<div className="excalidraw-wrapper">
{renderExcalidraw(children)}
{Object.keys(commentIcons || []).length > 0 && renderCommentIcons()}
{comment && renderComment()}
</div>
<div className="export-wrapper button-wrapper">
<label className="export-wrapper__checkbox">
<input
type="checkbox"
checked={exportWithDarkMode}
onChange={() => setExportWithDarkMode(!exportWithDarkMode)}
/>
Export with dark mode
</label>
<label className="export-wrapper__checkbox">
<input
type="checkbox"
checked={exportEmbedScene}
onChange={() => setExportEmbedScene(!exportEmbedScene)}
/>
Export with embed scene
</label>
<button
onClick={async () => {
if (!excalidrawAPI) {
return;
}
const svg = await exportToSvg({
elements: excalidrawAPI?.getSceneElements(),
appState: {
...initialData.appState,
exportWithDarkMode,
exportEmbedScene,
width: 300,
height: 100,
},
files: excalidrawAPI?.getFiles(),
});
appRef.current.querySelector(".export-svg").innerHTML =
svg.outerHTML;
}}
>
Export to SVG
</button>
<div className="export export-svg"></div>
<button
onClick={async () => {
if (!excalidrawAPI) {
return;
}
const blob = await exportToBlob({
elements: excalidrawAPI?.getSceneElements(),
mimeType: "image/png",
appState: {
...initialData.appState,
exportEmbedScene,
exportWithDarkMode,
},
files: excalidrawAPI?.getFiles(),
});
setBlobUrl(window.URL.createObjectURL(blob));
}}
>
Export to Blob
</button>
<div className="export export-blob">
<img src={blobUrl} alt="" />
</div>
<button
onClick={async () => {
if (!excalidrawAPI) {
return;
}
const canvas = await exportToCanvas({
elements: excalidrawAPI.getSceneElements(),
appState: {
...initialData.appState,
exportWithDarkMode,
},
files: excalidrawAPI.getFiles(),
});
const ctx = canvas.getContext("2d")!;
ctx.font = "30px Excalifont";
ctx.strokeText("My custom text", 50, 60);
setCanvasUrl(canvas.toDataURL());
}}
>
Export to Canvas
</button>
<button
onClick={async () => {
if (!excalidrawAPI) {
return;
}
const canvas = await exportToCanvas({
elements: excalidrawAPI.getSceneElements(),
appState: {
...initialData.appState,
exportWithDarkMode,
},
files: excalidrawAPI.getFiles(),
});
const ctx = canvas.getContext("2d")!;
ctx.font = "30px Excalifont";
ctx.strokeText("My custom text", 50, 60);
setCanvasUrl(canvas.toDataURL());
}}
>
Export to Canvas
</button>
<button
type="button"
onClick={() => {
if (!excalidrawAPI) {
return;
}
const elements = excalidrawAPI.getSceneElements();
excalidrawAPI.scrollToContent(elements[0], {
fitToViewport: true,
});
}}
>
Fit to viewport, first element
</button>
<button
type="button"
onClick={() => {
if (!excalidrawAPI) {
return;
}
const elements = excalidrawAPI.getSceneElements();
excalidrawAPI.scrollToContent(elements[0], {
fitToContent: true,
});
excalidrawAPI.scrollToContent(elements[0], {
fitToContent: true,
});
}}
>
Fit to content, first element
</button>
<button
type="button"
onClick={() => {
if (!excalidrawAPI) {
return;
}
const elements = excalidrawAPI.getSceneElements();
excalidrawAPI.scrollToContent(elements[0], {
fitToContent: true,
});
excalidrawAPI.scrollToContent(elements[0]);
}}
>
Scroll to first element, no fitToContent, no fitToViewport
</button>
<div className="export export-canvas">
<img src={canvasUrl} alt="" />
</div>
</div>
</ExampleSidebar>
</div>
);
}

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@ -0,0 +1,28 @@
import React from "react";
import type { ExcalidrawImperativeAPI } from "@excalidraw/excalidraw/types";
import CustomFooter from "./CustomFooter";
import type * as TExcalidraw from "@excalidraw/excalidraw";
const MobileFooter = ({
excalidrawAPI,
excalidrawLib,
}: {
excalidrawAPI: ExcalidrawImperativeAPI;
excalidrawLib: typeof TExcalidraw;
}) => {
const { useDevice, Footer } = excalidrawLib;
const device = useDevice();
if (device.editor.isMobile) {
return (
<Footer>
<CustomFooter
excalidrawAPI={excalidrawAPI}
excalidrawLib={excalidrawLib}
/>
</Footer>
);
}
return null;
};
export default MobileFooter;

View file

@ -0,0 +1,66 @@
.sidebar {
height: 100%;
width: 0;
position: absolute;
z-index: 1;
top: 0;
left: 0;
background-color: #111;
overflow-x: hidden;
transition: 0.5s;
padding-top: 60px;
&.open {
width: 300px;
}
&-links {
display: flex;
flex-direction: column;
padding: 20px;
button {
padding: 10px;
margin: 10px;
background: #faa2c1;
color: #fff;
border: none;
cursor: pointer;
}
}
}
.sidebar a {
padding: 8px 8px 8px 32px;
text-decoration: none;
font-size: 25px;
color: #818181;
display: block;
transition: 0.3s;
}
.sidebar a:hover {
color: #f1f1f1;
}
.sidebar .closebtn {
position: absolute;
top: 0;
right: 0;
font-size: 36px;
margin-left: 50px;
}
.openbtn {
font-size: 20px;
cursor: pointer;
background-color: #111;
color: white;
padding: 10px 15px;
border: none;
display: flex;
margin-left: 50px;
}
.sidebar-open {
margin-left: 300px;
}

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@ -0,0 +1,31 @@
import React, { useState } from "react";
import "./ExampleSidebar.scss";
export default function Sidebar({ children }: { children: React.ReactNode }) {
const [open, setOpen] = useState(false);
return (
<>
<div id="mySidebar" className={`sidebar ${open ? "open" : ""}`}>
<button className="closebtn" onClick={() => setOpen(false)}>
x
</button>
<div className="sidebar-links">
<button>Empty Home</button>
<button>Empty About</button>
</div>
</div>
<div className={`${open ? "sidebar-open" : ""}`}>
<button
className="openbtn"
onClick={() => {
setOpen(!open);
}}
>
Open Sidebar
</button>
{children}
</div>
</>
);
}

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@ -0,0 +1,32 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta
name="viewport"
content="width=device-width, initial-scale=1, shrink-to-fit=no"
/>
<meta name="theme-color" content="#000000" />
<title>React App</title>
<script>
window.name = "codesandbox";
window.EXCALIDRAW_ASSET_PATH =
"https://esm.sh/@excalidraw/excalidraw@0.18.0-rc.5/dist/prod/";
</script>
<link rel="stylesheet" href="/dist/dev/index.css" />
</head>
<body>
<noscript> You need to enable JavaScript to run this app. </noscript>
<div id="root"></div>
<script type="module">
import * as ExcalidrawLib from "@excalidraw/excalidraw";
console.log(ExcalidrawLib);
window.ExcalidrawLib = ExcalidrawLib;
</script>
<script type="module" src="index.tsx"></script>
</body>
</html>

View file

@ -0,0 +1,28 @@
import App from "./components/ExampleApp";
import React, { StrictMode } from "react";
import { createRoot } from "react-dom/client";
import type * as TExcalidraw from "@excalidraw/excalidraw";
import "@excalidraw/excalidraw/index.css";
declare global {
interface Window {
ExcalidrawLib: typeof TExcalidraw;
}
}
const rootElement = document.getElementById("root")!;
const root = createRoot(rootElement);
const { Excalidraw } = window.ExcalidrawLib;
root.render(
<StrictMode>
<App
appTitle={"Excalidraw Example"}
useCustom={(api: any, args?: any[]) => {}}
excalidrawLib={window.ExcalidrawLib}
>
<Excalidraw />
</App>
</StrictMode>,
);

View file

@ -0,0 +1,994 @@
import type { ExcalidrawElementSkeleton } from "@excalidraw/excalidraw/data/transform";
import type { FileId } from "@excalidraw/excalidraw/element/types";
const elements: ExcalidrawElementSkeleton[] = [
{
type: "rectangle",
x: 10,
y: 10,
strokeWidth: 2,
id: "1",
},
{
type: "diamond",
x: 120,
y: 20,
backgroundColor: "#fff3bf",
strokeWidth: 2,
label: {
text: "HELLO EXCALIDRAW",
strokeColor: "#099268",
fontSize: 30,
},
id: "2",
},
{
type: "arrow",
x: 100,
y: 200,
label: { text: "HELLO WORLD!!" },
start: { type: "rectangle" },
end: { type: "ellipse" },
},
{
type: "image",
x: 606.1042326312408,
y: 153.57729779411773,
width: 230,
height: 230,
fileId: "rocket" as FileId,
},
{
type: "frame",
children: ["1", "2"],
name: "My frame",
},
];
export default {
elements,
appState: { viewBackgroundColor: "#AFEEEE", currentItemFontFamily: 5 },
scrollToContent: true,
libraryItems: [
[
{
type: "line",
x: 209.72304760646858,
y: 338.83587294718825,
strokeColor: "#881fa3",
backgroundColor: "#be4bdb",
width: 116.42036295658873,
height: 103.65107323746608,
strokeSharpness: "sharp",
points: [
[-92.28090097254909, 7.105427357601002e-15],
[-154.72281841151394, 19.199290805487394],
[-155.45758928571422, 79.43840749607878],
[-99.89923520113778, 103.6510732374661],
[-40.317783799181804, 79.1587107641305],
[-39.037226329125524, 21.285677238400705],
[-92.28090097254909, 7.105427357601002e-15],
],
},
],
[
{
type: "line",
fillStyle: "solid",
strokeWidth: 1,
strokeStyle: "solid",
x: -249.48446738689245,
y: 374.851387389359,
strokeColor: "#0a11d3",
backgroundColor: "#228be6",
width: 88.21658171083376,
height: 113.8575037534261,
groupIds: ["N2YAi9nU-wlRb0rDaDZoe"],
points: [
[-0.22814350714115691, -43.414939319563715],
[0.06274947619197979, 42.63794490105306],
[-0.21453039840335475, 52.43469208825097],
[4.315205554872581, 56.66774540453215],
[20.089784992984285, 60.25027917349701],
[46.7532926683984, 61.365826671969444],
[72.22851104292477, 59.584691681394986],
[85.76368213524371, 55.325139565662596],
[87.67263486434864, 51.7342924478499],
[87.94074036468018, 43.84700272879395],
[87.73030872197806, -36.195582644606276],
[87.2559282533682, -43.758132174307036],
[81.5915337527493, -47.984890854524416],
[69.66352776578219, -50.4328058257654],
[42.481213744224995, -52.49167708145666],
[20.68789182864576, -51.26396751574663],
[3.5475921483286084, -47.099726468136254],
[-0.2758413461535838, -43.46664538034193],
[-0.22814350714115691, -43.414939319563715],
],
},
{
type: "line",
fillStyle: "solid",
strokeWidth: 1,
strokeStyle: "solid",
roughness: 1,
opacity: 100,
angle: 0,
x: -249.02524930453623,
y: 398.8804363713438,
strokeColor: "#0a11d3",
backgroundColor: "transparent",
width: 88.30808627974527,
height: 9.797916664247975,
seed: 683951089,
groupIds: ["N2YAi9nU-wlRb0rDaDZoe"],
strokeSharpness: "round",
points: [
[0, -2.1538602707609424],
[2.326538897826852, 1.751753055375216],
[12.359939318521995, 5.028526743934819],
[25.710950037209347, 7.012921076245119],
[46.6269757640547, 7.193749997581346],
[71.03526003420632, 5.930375670950649],
[85.2899738827162, 1.3342483900732343],
[88.30808627974527, -2.6041666666666288],
],
},
{
type: "line",
fillStyle: "solid",
strokeWidth: 1,
strokeStyle: "solid",
roughness: 1,
opacity: 100,
angle: 0,
x: -250.11899081659772,
y: 365.80628180927204,
strokeColor: "#0a11d3",
backgroundColor: "transparent",
width: 88.30808627974527,
height: 9.797916664247975,
seed: 1817746897,
groupIds: ["N2YAi9nU-wlRb0rDaDZoe"],
strokeSharpness: "round",
points: [
[0, -2.1538602707609424],
[2.326538897826852, 1.751753055375216],
[12.359939318521995, 5.028526743934819],
[25.710950037209347, 7.012921076245119],
[46.6269757640547, 7.193749997581346],
[71.03526003420632, 5.930375670950649],
[85.2899738827162, 1.3342483900732343],
[88.30808627974527, -2.6041666666666288],
],
},
{
type: "ellipse",
fillStyle: "solid",
strokeWidth: 1,
strokeStyle: "solid",
roughness: 1,
opacity: 100,
angle: 0,
x: -251.23981350275943,
y: 323.4117518426986,
strokeColor: "#0a11d3",
backgroundColor: "#fff",
width: 87.65074610854188,
height: 17.72670397681366,
seed: 1409727409,
groupIds: ["N2YAi9nU-wlRb0rDaDZoe"],
strokeSharpness: "sharp",
boundElementIds: ["bxuMGTzXLn7H-uBCptINx"],
},
{
type: "ellipse",
fillStyle: "solid",
strokeWidth: 1,
strokeStyle: "solid",
roughness: 1,
opacity: 100,
angle: 0,
x: -179.73008120217884,
y: 347.98755471983213,
strokeColor: "#0a11d3",
backgroundColor: "#fff",
width: 12.846057046979809,
height: 13.941904362416096,
seed: 1073094033,
groupIds: ["N2YAi9nU-wlRb0rDaDZoe"],
strokeSharpness: "sharp",
},
{
type: "ellipse",
fillStyle: "solid",
strokeWidth: 1,
strokeStyle: "solid",
roughness: 1,
opacity: 100,
angle: 0,
x: -179.73008120217884,
y: 378.5900085788926,
strokeColor: "#0a11d3",
backgroundColor: "#fff",
width: 12.846057046979809,
height: 13.941904362416096,
seed: 526271345,
groupIds: ["N2YAi9nU-wlRb0rDaDZoe"],
strokeSharpness: "sharp",
},
{
type: "ellipse",
fillStyle: "solid",
strokeWidth: 1,
strokeStyle: "solid",
roughness: 1,
opacity: 100,
angle: 0,
x: -179.73008120217884,
y: 411.8508097533892,
strokeColor: "#0a11d3",
backgroundColor: "#fff",
width: 12.846057046979809,
height: 13.941904362416096,
seed: 243707217,
groupIds: ["N2YAi9nU-wlRb0rDaDZoe"],
strokeSharpness: "sharp",
},
],
[
{
type: "diamond",
fillStyle: "solid",
strokeWidth: 1,
strokeStyle: "solid",
roughness: 1,
opacity: 100,
angle: 0,
x: -109.55894395256101,
y: 381.22641397493356,
strokeColor: "#c92a2a",
backgroundColor: "#fd8888",
width: 112.64736525303451,
height: 36.77344700318558,
seed: 511870335,
groupIds: ["M6ByXuSmtHCr3RtPPKJQh"],
strokeSharpness: "sharp",
},
{
type: "diamond",
fillStyle: "solid",
strokeWidth: 1,
strokeStyle: "solid",
roughness: 1,
opacity: 100,
angle: 0,
x: -109.55894395256101,
y: 372.354634046675,
strokeColor: "#c92a2a",
backgroundColor: "#fd8888",
width: 112.64736525303451,
height: 36.77344700318558,
seed: 1283079231,
groupIds: ["M6ByXuSmtHCr3RtPPKJQh"],
strokeSharpness: "sharp",
},
{
type: "diamond",
fillStyle: "solid",
strokeWidth: 1,
strokeStyle: "solid",
roughness: 1,
opacity: 100,
angle: 0,
x: -109.55894395256101,
y: 359.72407445196296,
strokeColor: "#c92a2a",
backgroundColor: "#fd8888",
width: 112.64736525303451,
height: 36.77344700318558,
seed: 996251633,
groupIds: ["M6ByXuSmtHCr3RtPPKJQh"],
strokeSharpness: "sharp",
},
{
type: "diamond",
fillStyle: "solid",
strokeWidth: 1,
strokeStyle: "solid",
roughness: 1,
opacity: 100,
angle: 0,
x: -109.55894395256101,
y: 347.1924021546656,
strokeColor: "#c92a2a",
backgroundColor: "#fd8888",
width: 112.64736525303451,
height: 36.77344700318558,
seed: 1764842481,
groupIds: ["M6ByXuSmtHCr3RtPPKJQh"],
strokeSharpness: "sharp",
},
],
[
{
type: "line",
fillStyle: "hachure",
strokeWidth: 1,
strokeStyle: "solid",
roughness: 1,
opacity: 100,
angle: 1.5707963267948957,
x: -471.6208001976387,
y: 520.7681448415112,
strokeColor: "#087f5b",
backgroundColor: "#40c057",
width: 52.317507746132115,
height: 154.56722543646003,
seed: 1424381745,
groupIds: ["HSrtfEf-CssQTf160Fb6R"],
strokeSharpness: "round",
points: [
[-0.24755378372925183, -40.169554027464216],
[-0.07503751055611152, 76.6515171914404],
[-0.23948042713317108, 89.95108885873196],
[2.446913573036335, 95.69766931810295],
[11.802146636255692, 100.56113713047068],
[27.615140546177496, 102.07554835500338],
[42.72341054254274, 99.65756899883291],
[50.75054563137204, 93.87501510096598],
[51.88266441510958, 89.00026150397161],
[52.04166639997853, 78.29287333983132],
[51.916868330459295, -30.36891819848148],
[51.635533423123285, -40.63545540065934],
[48.27622163143906, -46.37349057843314],
[41.202227904674494, -49.69665692879073],
[25.081551986374073, -52.49167708145666],
[12.15685839679867, -50.825000270901],
[1.9916746648394732, -45.171835889467935],
[-0.2758413461535838, -40.23974757720194],
[-0.24755378372925183, -40.169554027464216],
],
},
{
type: "line",
version: 2405,
versionNonce: 2120341087,
isDeleted: false,
id: "TYsYe2VvJ60T_yKa3kyOw",
fillStyle: "solid",
strokeWidth: 1,
strokeStyle: "solid",
roughness: 1,
opacity: 100,
angle: 1.5707963267948957,
x: -496.3957643857249,
y: 541.7241190920508,
strokeColor: "#087f5b",
backgroundColor: "transparent",
width: 50.7174766392476,
height: 12.698053371678215,
seed: 726657713,
groupIds: ["HSrtfEf-CssQTf160Fb6R"],
strokeSharpness: "round",
points: [
[0, -2.0205717204386002],
[1.3361877396713384, 3.0410845646550486],
[7.098613049589299, 7.287767671898479],
[14.766422451441104, 9.859533283467512],
[26.779003528407447, 10.093886705011586],
[40.79727342221974, 8.456559589697127],
[48.98410145879092, 2.500000505196364],
[50.7174766392476, -2.6041666666666288],
],
},
{
type: "line",
fillStyle: "solid",
strokeWidth: 1,
strokeStyle: "solid",
roughness: 1,
opacity: 100,
angle: 1.5707963267948957,
x: -450.969983237283,
y: 542.1789894334747,
strokeColor: "#087f5b",
backgroundColor: "transparent",
width: 50.57247907260371,
height: 10.178760037658167,
seed: 1977326481,
groupIds: ["HSrtfEf-CssQTf160Fb6R"],
strokeSharpness: "round",
points: [
[0, -2.136356936862347],
[1.332367676378171, 1.9210669226078037],
[7.078318632616268, 5.325208253515953],
[14.724206326638113, 7.386735659885842],
[26.70244431044034, 7.574593370991538],
[40.68063699304561, 6.262111896696538],
[48.84405948536458, 1.4873339211608216],
[50.57247907260371, -2.6041666666666288],
],
},
{
type: "ellipse",
fillStyle: "solid",
strokeWidth: 1,
strokeStyle: "solid",
roughness: 1,
opacity: 100,
angle: 1.5707963267948957,
x: -404.36521010516793,
y: 534.1894365757241,
strokeColor: "#087f5b",
backgroundColor: "#fff",
width: 51.27812853552538,
height: 22.797152568995934,
seed: 1774660383,
groupIds: ["HSrtfEf-CssQTf160Fb6R"],
strokeSharpness: "sharp",
boundElementIds: ["bxuMGTzXLn7H-uBCptINx"],
},
],
[
{
type: "rectangle",
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{
"name": "with-script-in-browser",
"version": "1.0.0",
"private": true,
"dependencies": {
"react": "19.0.0",
"react-dom": "19.0.0",
"@excalidraw/excalidraw": "0.18.0-rc.5",
"browser-fs-access": "0.29.1"
},
"devDependencies": {
"vite": "5.0.12",
"typescript": "^5"
},
"scripts": {
"start": "vite",
"build": "vite build",
"build:preview": "yarn build && vite preview --port 5002"
}
}

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{
"compilerOptions": {
"module": "ES2022",
"moduleResolution": "Bundler",
"lib": ["ESNext", "DOM", "DOM.Iterable"],
"jsx": "react-jsx",
"skipLibCheck": true
}
}

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import { unstable_batchedUpdates } from "react-dom";
import { fileOpen as _fileOpen } from "browser-fs-access";
import { MIME_TYPES } from "@excalidraw/excalidraw";
type FILE_EXTENSION = Exclude<keyof typeof MIME_TYPES, "binary">;
const INPUT_CHANGE_INTERVAL_MS = 500;
export type ResolvablePromise<T> = Promise<T> & {
resolve: [T] extends [undefined] ? (value?: T) => void : (value: T) => void;
reject: (error: Error) => void;
};
export const resolvablePromise = <T>() => {
let resolve!: any;
let reject!: any;
const promise = new Promise((_resolve, _reject) => {
resolve = _resolve;
reject = _reject;
});
(promise as any).resolve = resolve;
(promise as any).reject = reject;
return promise as ResolvablePromise<T>;
};
export const distance2d = (x1: number, y1: number, x2: number, y2: number) => {
const xd = x2 - x1;
const yd = y2 - y1;
return Math.hypot(xd, yd);
};
export const fileOpen = <M extends boolean | undefined = false>(opts: {
extensions?: FILE_EXTENSION[];
description: string;
multiple?: M;
}): Promise<M extends false | undefined ? File : File[]> => {
// an unsafe TS hack, alas not much we can do AFAIK
type RetType = M extends false | undefined ? File : File[];
const mimeTypes = opts.extensions?.reduce((mimeTypes, type) => {
mimeTypes.push(MIME_TYPES[type]);
return mimeTypes;
}, [] as string[]);
const extensions = opts.extensions?.reduce((acc, ext) => {
if (ext === "jpg") {
return acc.concat(".jpg", ".jpeg");
}
return acc.concat(`.${ext}`);
}, [] as string[]);
return _fileOpen({
description: opts.description,
extensions,
mimeTypes,
multiple: opts.multiple ?? false,
legacySetup: (resolve, reject, input) => {
const scheduleRejection = debounce(reject, INPUT_CHANGE_INTERVAL_MS);
const focusHandler = () => {
checkForFile();
document.addEventListener("keyup", scheduleRejection);
document.addEventListener("pointerup", scheduleRejection);
scheduleRejection();
};
const checkForFile = () => {
// this hack might not work when expecting multiple files
if (input.files?.length) {
const ret = opts.multiple ? [...input.files] : input.files[0];
resolve(ret as RetType);
}
};
requestAnimationFrame(() => {
window.addEventListener("focus", focusHandler);
});
const interval = window.setInterval(() => {
checkForFile();
}, INPUT_CHANGE_INTERVAL_MS);
return (rejectPromise) => {
clearInterval(interval);
scheduleRejection.cancel();
window.removeEventListener("focus", focusHandler);
document.removeEventListener("keyup", scheduleRejection);
document.removeEventListener("pointerup", scheduleRejection);
if (rejectPromise) {
// so that something is shown in console if we need to debug this
console.warn("Opening the file was canceled (legacy-fs).");
rejectPromise(new Error("Request Aborted"));
}
};
},
}) as Promise<RetType>;
};
export const debounce = <T extends any[]>(
fn: (...args: T) => void,
timeout: number,
) => {
let handle = 0;
let lastArgs: T | null = null;
const ret = (...args: T) => {
lastArgs = args;
clearTimeout(handle);
handle = window.setTimeout(() => {
lastArgs = null;
fn(...args);
}, timeout);
};
ret.flush = () => {
clearTimeout(handle);
if (lastArgs) {
const _lastArgs = lastArgs;
lastArgs = null;
fn(..._lastArgs);
}
};
ret.cancel = () => {
lastArgs = null;
clearTimeout(handle);
};
return ret;
};
export const withBatchedUpdates = <
TFunction extends ((event: any) => void) | (() => void),
>(
func: Parameters<TFunction>["length"] extends 0 | 1 ? TFunction : never,
) =>
((event) => {
unstable_batchedUpdates(func as TFunction, event);
}) as TFunction;
/**
* barches React state updates and throttles the calls to a single call per
* animation frame
*/
export const withBatchedUpdatesThrottled = <
TFunction extends ((event: any) => void) | (() => void),
>(
func: Parameters<TFunction>["length"] extends 0 | 1 ? TFunction : never,
) => {
// @ts-ignore
return throttleRAF<Parameters<TFunction>>(((event) => {
unstable_batchedUpdates(func, event);
}) as TFunction);
};

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{
"outputDirectory": "dist",
"installCommand": "yarn install"
}

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import { defineConfig } from "vite";
// https://vitejs.dev/config/
export default defineConfig({
server: {
port: 3001,
// open the browser
open: true,
},
publicDir: "public",
optimizeDeps: {
esbuildOptions: {
// Bumping to 2022 due to "Arbitrary module namespace identifier names" not being
// supported in Vite's default browser target https://github.com/vitejs/vite/issues/13556
target: "es2022",
treeShaking: true,
},
},
});