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App.tsx
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App.tsx
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import React, { useContext } from "react";
import { flushSync } from "react-dom";
import type { RoughCanvas } from "roughjs/bin/canvas";
import rough from "roughjs/bin/rough";
import clsx from "clsx";
import { nanoid } from "nanoid";
import {
actionAddToLibrary,
actionBringForward,
actionBringToFront,
actionCopy,
actionCopyAsPng,
actionCopyAsSvg,
copyText,
actionCopyStyles,
actionCut,
actionDeleteSelected,
actionDuplicateSelection,
actionFinalize,
actionFlipHorizontal,
actionFlipVertical,
actionGroup,
actionPasteStyles,
actionSelectAll,
actionSendBackward,
actionSendToBack,
actionToggleGridMode,
actionToggleStats,
actionToggleZenMode,
actionUnbindText,
actionBindText,
actionUngroup,
actionLink,
actionToggleElementLock,
actionToggleLinearEditor,
actionToggleObjectsSnapMode,
} from "../actions";
import { createRedoAction, createUndoAction } from "../actions/actionHistory";
import { ActionManager } from "../actions/manager";
import { actions } from "../actions/register";
import type { Action, ActionResult } from "../actions/types";
import { trackEvent } from "../analytics";
import {
getDefaultAppState,
isEraserActive,
isHandToolActive,
} from "../appState";
import type { PastedMixedContent } from "../clipboard";
import { copyTextToSystemClipboard, parseClipboard } from "../clipboard";
import type { EXPORT_IMAGE_TYPES } from "../constants";
import {
APP_NAME,
CURSOR_TYPE,
DEFAULT_MAX_IMAGE_WIDTH_OR_HEIGHT,
DEFAULT_VERTICAL_ALIGN,
DRAGGING_THRESHOLD,
ELEMENT_SHIFT_TRANSLATE_AMOUNT,
ELEMENT_TRANSLATE_AMOUNT,
ENV,
EVENT,
FRAME_STYLE,
GRID_SIZE,
IMAGE_MIME_TYPES,
IMAGE_RENDER_TIMEOUT,
isBrave,
LINE_CONFIRM_THRESHOLD,
MAX_ALLOWED_FILE_BYTES,
MIME_TYPES,
MQ_MAX_HEIGHT_LANDSCAPE,
MQ_MAX_WIDTH_LANDSCAPE,
MQ_MAX_WIDTH_PORTRAIT,
MQ_RIGHT_SIDEBAR_MIN_WIDTH,
POINTER_BUTTON,
ROUNDNESS,
SCROLL_TIMEOUT,
TAP_TWICE_TIMEOUT,
TEXT_TO_CENTER_SNAP_THRESHOLD,
THEME,
THEME_FILTER,
TOUCH_CTX_MENU_TIMEOUT,
VERTICAL_ALIGN,
YOUTUBE_STATES,
ZOOM_STEP,
POINTER_EVENTS,
TOOL_TYPE,
EDITOR_LS_KEYS,
isIOS,
supportsResizeObserver,
DEFAULT_COLLISION_THRESHOLD,
} from "../constants";
import type { ExportedElements } from "../data";
import { exportCanvas, loadFromBlob } from "../data";
import Library, { distributeLibraryItemsOnSquareGrid } from "../data/library";
import { restore, restoreElements } from "../data/restore";
import {
dragNewElement,
dragSelectedElements,
duplicateElement,
getCommonBounds,
getCursorForResizingElement,
getDragOffsetXY,
getElementWithTransformHandleType,
getNormalizedDimensions,
getResizeArrowDirection,
getResizeOffsetXY,
getLockedLinearCursorAlignSize,
getTransformHandleTypeFromCoords,
isInvisiblySmallElement,
isNonDeletedElement,
isTextElement,
newElement,
newLinearElement,
newTextElement,
newImageElement,
transformElements,
refreshTextDimensions,
redrawTextBoundingBox,
getElementAbsoluteCoords,
} from "../element";
import {
bindOrUnbindLinearElement,
bindOrUnbindLinearElements,
fixBindingsAfterDeletion,
fixBindingsAfterDuplication,
getHoveredElementForBinding,
isBindingEnabled,
isLinearElementSimpleAndAlreadyBound,
maybeBindLinearElement,
shouldEnableBindingForPointerEvent,
updateBoundElements,
getSuggestedBindingsForArrows,
} from "../element/binding";
import { LinearElementEditor } from "../element/linearElementEditor";
import { mutateElement, newElementWith } from "../element/mutateElement";
import {
deepCopyElement,
duplicateElements,
newFrameElement,
newFreeDrawElement,
newEmbeddableElement,
newMagicFrameElement,
newIframeElement,
} from "../element/newElement";
import {
hasBoundTextElement,
isArrowElement,
isBindingElement,
isBindingElementType,
isBoundToContainer,
isFrameLikeElement,
isImageElement,
isEmbeddableElement,
isInitializedImageElement,
isLinearElement,
isLinearElementType,
isUsingAdaptiveRadius,
isFrameElement,
isIframeElement,
isIframeLikeElement,
isMagicFrameElement,
isTextBindableContainer,
} from "../element/typeChecks";
import type {
ExcalidrawBindableElement,
ExcalidrawElement,
ExcalidrawFreeDrawElement,
ExcalidrawGenericElement,
ExcalidrawLinearElement,
ExcalidrawTextElement,
NonDeleted,
InitializedExcalidrawImageElement,
ExcalidrawImageElement,
FileId,
NonDeletedExcalidrawElement,
ExcalidrawTextContainer,
ExcalidrawFrameLikeElement,
ExcalidrawMagicFrameElement,
ExcalidrawIframeLikeElement,
IframeData,
ExcalidrawIframeElement,
ExcalidrawEmbeddableElement,
Ordered,
} from "../element/types";
import { getCenter, getDistance } from "../gesture";
import {
editGroupForSelectedElement,
getElementsInGroup,
getSelectedGroupIdForElement,
getSelectedGroupIds,
isElementInGroup,
isSelectedViaGroup,
selectGroupsForSelectedElements,
} from "../groups";
import { History } from "../history";
import { defaultLang, getLanguage, languages, setLanguage, t } from "../i18n";
import {
CODES,
shouldResizeFromCenter,
shouldMaintainAspectRatio,
shouldRotateWithDiscreteAngle,
isArrowKey,
KEYS,
} from "../keys";
import { isElementInViewport } from "../element/sizeHelpers";
import {
distance2d,
getCornerRadius,
getGridPoint,
isPathALoop,
} from "../math";
import {
calculateScrollCenter,
getElementsWithinSelection,
getNormalizedZoom,
getSelectedElements,
hasBackground,
isSomeElementSelected,
} from "../scene";
import Scene from "../scene/Scene";
import type {
RenderInteractiveSceneCallback,
ScrollBars,
} from "../scene/types";
import { getStateForZoom } from "../scene/zoom";
import { findShapeByKey } from "../shapes";
import type { GeometricShape } from "../../utils/geometry/shape";
import {
getClosedCurveShape,
getCurveShape,
getEllipseShape,
getFreedrawShape,
getPolygonShape,
getSelectionBoxShape,
} from "../../utils/geometry/shape";
import { isPointInShape } from "../../utils/collision";
import type {
AppClassProperties,
AppProps,
AppState,
BinaryFileData,
DataURL,
ExcalidrawImperativeAPI,
BinaryFiles,
Gesture,
GestureEvent,
LibraryItems,
PointerDownState,
SceneData,
Device,
FrameNameBoundsCache,
SidebarName,
SidebarTabName,
KeyboardModifiersObject,
CollaboratorPointer,
ToolType,
OnUserFollowedPayload,
UnsubscribeCallback,
EmbedsValidationStatus,
ElementsPendingErasure,
} from "../types";
import {
debounce,
distance,
getFontString,
getNearestScrollableContainer,
isInputLike,
isToolIcon,
isWritableElement,
sceneCoordsToViewportCoords,
tupleToCoors,
viewportCoordsToSceneCoords,
wrapEvent,
updateObject,
updateActiveTool,
getShortcutKey,
isTransparent,
easeToValuesRAF,
muteFSAbortError,
isTestEnv,
easeOut,
updateStable,
addEventListener,
normalizeEOL,
getDateTime,
isShallowEqual,
arrayToMap,
} from "../utils";
import {
createSrcDoc,
embeddableURLValidator,
maybeParseEmbedSrc,
getEmbedLink,
} from "../element/embeddable";
import type { ContextMenuItems } from "./ContextMenu";
import { ContextMenu, CONTEXT_MENU_SEPARATOR } from "./ContextMenu";
import LayerUI from "./LayerUI";
import { Toast } from "./Toast";
import { actionToggleViewMode } from "../actions/actionToggleViewMode";
import {
dataURLToFile,
generateIdFromFile,
getDataURL,
getFileFromEvent,
ImageURLToFile,
isImageFileHandle,
isSupportedImageFile,
loadSceneOrLibraryFromBlob,
normalizeFile,
parseLibraryJSON,
resizeImageFile,
SVGStringToFile,
} from "../data/blob";
import {
getInitializedImageElements,
loadHTMLImageElement,
normalizeSVG,
updateImageCache as _updateImageCache,
} from "../element/image";
import throttle from "lodash.throttle";
import type { FileSystemHandle } from "../data/filesystem";
import { fileOpen } from "../data/filesystem";
import {
bindTextToShapeAfterDuplication,
getApproxMinLineHeight,
getApproxMinLineWidth,
getBoundTextElement,
getContainerCenter,
getContainerElement,
getDefaultLineHeight,
getLineHeightInPx,
isMeasureTextSupported,
isValidTextContainer,
} from "../element/textElement";
import {
showHyperlinkTooltip,
hideHyperlinkToolip,
Hyperlink,
} from "../components/hyperlink/Hyperlink";
import { isLocalLink, normalizeLink, toValidURL } from "../data/url";
import { shouldShowBoundingBox } from "../element/transformHandles";
import { actionUnlockAllElements } from "../actions/actionElementLock";
import { Fonts } from "../scene/Fonts";
import {
getFrameChildren,
isCursorInFrame,
bindElementsToFramesAfterDuplication,
addElementsToFrame,
replaceAllElementsInFrame,
removeElementsFromFrame,
getElementsInResizingFrame,
getElementsInNewFrame,
getContainingFrame,
elementOverlapsWithFrame,
updateFrameMembershipOfSelectedElements,
isElementInFrame,
getFrameLikeTitle,
getElementsOverlappingFrame,
filterElementsEligibleAsFrameChildren,
} from "../frame";
import {
excludeElementsInFramesFromSelection,
makeNextSelectedElementIds,
} from "../scene/selection";
import { actionPaste } from "../actions/actionClipboard";
import {
actionRemoveAllElementsFromFrame,
actionSelectAllElementsInFrame,
} from "../actions/actionFrame";
import { actionToggleHandTool, zoomToFit } from "../actions/actionCanvas";
import { jotaiStore } from "../jotai";
import { activeConfirmDialogAtom } from "./ActiveConfirmDialog";
import { ImageSceneDataError } from "../errors";
import {
getSnapLinesAtPointer,
snapDraggedElements,
isActiveToolNonLinearSnappable,
snapNewElement,
snapResizingElements,
isSnappingEnabled,
getVisibleGaps,
getReferenceSnapPoints,
SnapCache,
} from "../snapping";
import { actionWrapTextInContainer } from "../actions/actionBoundText";
import BraveMeasureTextError from "./BraveMeasureTextError";
import { activeEyeDropperAtom } from "./EyeDropper";
import type { ExcalidrawElementSkeleton } from "../data/transform";
import { convertToExcalidrawElements } from "../data/transform";
import type { ValueOf } from "../utility-types";
import { isSidebarDockedAtom } from "./Sidebar/Sidebar";
import { StaticCanvas, InteractiveCanvas } from "./canvases";
import { Renderer } from "../scene/Renderer";
import { ShapeCache } from "../scene/ShapeCache";
import { SVGLayer } from "./SVGLayer";
import {
setEraserCursor,
setCursor,
resetCursor,
setCursorForShape,
} from "../cursor";
import { Emitter } from "../emitter";
import { ElementCanvasButtons } from "../element/ElementCanvasButtons";
import type { MagicCacheData } from "../data/magic";
import { diagramToHTML } from "../data/magic";
import { exportToBlob } from "../../utils/export";
import { COLOR_PALETTE } from "../colors";
import { ElementCanvasButton } from "./MagicButton";
import { MagicIcon, copyIcon, fullscreenIcon } from "./icons";
import { EditorLocalStorage } from "../data/EditorLocalStorage";
import FollowMode from "./FollowMode/FollowMode";
import { Store, StoreAction } from "../store";
import { AnimationFrameHandler } from "../animation-frame-handler";
import { AnimatedTrail } from "../animated-trail";
import { LaserTrails } from "../laser-trails";
import { withBatchedUpdates, withBatchedUpdatesThrottled } from "../reactUtils";
import { getRenderOpacity } from "../renderer/renderElement";
import {
hitElementBoundText,
hitElementBoundingBoxOnly,
hitElementItself,
shouldTestInside,
} from "../element/collision";
import { textWysiwyg } from "../element/textWysiwyg";
import { isOverScrollBars } from "../scene/scrollbars";
import { syncInvalidIndices, syncMovedIndices } from "../fractionalIndex";
import {
isPointHittingLink,
isPointHittingLinkIcon,
} from "./hyperlink/helpers";
import { getShortcutFromShortcutName } from "../actions/shortcuts";
import { actionTextAutoResize } from "../actions/actionTextAutoResize";
const AppContext = React.createContext<AppClassProperties>(null!);
const AppPropsContext = React.createContext<AppProps>(null!);
const deviceContextInitialValue = {
viewport: {
isMobile: false,
isLandscape: false,
},
editor: {
isMobile: false,
canFitSidebar: false,
},
isTouchScreen: false,
};
const DeviceContext = React.createContext<Device>(deviceContextInitialValue);
DeviceContext.displayName = "DeviceContext";
export const ExcalidrawContainerContext = React.createContext<{
container: HTMLDivElement | null;
id: string | null;
}>({ container: null, id: null });
ExcalidrawContainerContext.displayName = "ExcalidrawContainerContext";
const ExcalidrawElementsContext = React.createContext<
readonly NonDeletedExcalidrawElement[]
>([]);
ExcalidrawElementsContext.displayName = "ExcalidrawElementsContext";
const ExcalidrawAppStateContext = React.createContext<AppState>({
...getDefaultAppState(),
width: 0,
height: 0,
offsetLeft: 0,
offsetTop: 0,
});
ExcalidrawAppStateContext.displayName = "ExcalidrawAppStateContext";
const ExcalidrawSetAppStateContext = React.createContext<
React.Component<any, AppState>["setState"]
>(() => {
console.warn("Uninitialized ExcalidrawSetAppStateContext context!");
});
ExcalidrawSetAppStateContext.displayName = "ExcalidrawSetAppStateContext";
const ExcalidrawActionManagerContext = React.createContext<ActionManager>(
null!,
);
ExcalidrawActionManagerContext.displayName = "ExcalidrawActionManagerContext";
export const useApp = () => useContext(AppContext);
export const useAppProps = () => useContext(AppPropsContext);
export const useDevice = () => useContext<Device>(DeviceContext);
export const useExcalidrawContainer = () =>
useContext(ExcalidrawContainerContext);
export const useExcalidrawElements = () =>
useContext(ExcalidrawElementsContext);
export const useExcalidrawAppState = () =>
useContext(ExcalidrawAppStateContext);
export const useExcalidrawSetAppState = () =>
useContext(ExcalidrawSetAppStateContext);
export const useExcalidrawActionManager = () =>
useContext(ExcalidrawActionManagerContext);
let didTapTwice: boolean = false;
let tappedTwiceTimer = 0;
let isHoldingSpace: boolean = false;
let isPanning: boolean = false;
let isDraggingScrollBar: boolean = false;
let currentScrollBars: ScrollBars = { horizontal: null, vertical: null };
let touchTimeout = 0;
let invalidateContextMenu = false;
/**
* Map of youtube embed video states
*/
const YOUTUBE_VIDEO_STATES = new Map<
ExcalidrawElement["id"],
ValueOf<typeof YOUTUBE_STATES>
>();
let IS_PLAIN_PASTE = false;
let IS_PLAIN_PASTE_TIMER = 0;
let PLAIN_PASTE_TOAST_SHOWN = false;
let lastPointerUp: (() => void) | null = null;
const gesture: Gesture = {
pointers: new Map(),
lastCenter: null,
initialDistance: null,
initialScale: null,
};
class App extends React.Component<AppProps, AppState> {
canvas: AppClassProperties["canvas"];
interactiveCanvas: AppClassProperties["interactiveCanvas"] = null;
rc: RoughCanvas;
unmounted: boolean = false;
actionManager: ActionManager;
device: Device = deviceContextInitialValue;
private excalidrawContainerRef = React.createRef<HTMLDivElement>();
public scene: Scene;
public renderer: Renderer;
private fonts: Fonts;
private resizeObserver: ResizeObserver | undefined;
private nearestScrollableContainer: HTMLElement | Document | undefined;
public library: AppClassProperties["library"];
public libraryItemsFromStorage: LibraryItems | undefined;
public id: string;
private store: Store;
private history: History;
private excalidrawContainerValue: {
container: HTMLDivElement | null;
id: string;
};
public files: BinaryFiles = {};
public imageCache: AppClassProperties["imageCache"] = new Map();
private iFrameRefs = new Map<ExcalidrawElement["id"], HTMLIFrameElement>();
/**
* Indicates whether the embeddable's url has been validated for rendering.
* If value not set, indicates that the validation is pending.
* Initially or on url change the flag is not reset so that we can guarantee
* the validation came from a trusted source (the editor).
**/
private embedsValidationStatus: EmbedsValidationStatus = new Map();
/** embeds that have been inserted to DOM (as a perf optim, we don't want to
* insert to DOM before user initially scrolls to them) */
private initializedEmbeds = new Set<ExcalidrawIframeLikeElement["id"]>();
private elementsPendingErasure: ElementsPendingErasure = new Set();
hitLinkElement?: NonDeletedExcalidrawElement;
lastPointerDownEvent: React.PointerEvent<HTMLElement> | null = null;
lastPointerUpEvent: React.PointerEvent<HTMLElement> | PointerEvent | null =
null;
lastPointerMoveEvent: PointerEvent | null = null;
lastViewportPosition = { x: 0, y: 0 };
animationFrameHandler = new AnimationFrameHandler();
laserTrails = new LaserTrails(this.animationFrameHandler, this);
eraserTrail = new AnimatedTrail(this.animationFrameHandler, this, {
streamline: 0.2,
size: 5,
keepHead: true,
sizeMapping: (c) => {
const DECAY_TIME = 200;
const DECAY_LENGTH = 10;
const t = Math.max(0, 1 - (performance.now() - c.pressure) / DECAY_TIME);
const l =
(DECAY_LENGTH -
Math.min(DECAY_LENGTH, c.totalLength - c.currentIndex)) /
DECAY_LENGTH;
return Math.min(easeOut(l), easeOut(t));
},
fill: () =>
this.state.theme === THEME.LIGHT
? "rgba(0, 0, 0, 0.2)"
: "rgba(255, 255, 255, 0.2)",
});
onChangeEmitter = new Emitter<
[
elements: readonly ExcalidrawElement[],
appState: AppState,
files: BinaryFiles,
]
>();
onPointerDownEmitter = new Emitter<
[
activeTool: AppState["activeTool"],
pointerDownState: PointerDownState,
event: React.PointerEvent<HTMLElement>,
]
>();
onPointerUpEmitter = new Emitter<
[
activeTool: AppState["activeTool"],
pointerDownState: PointerDownState,
event: PointerEvent,
]
>();
onUserFollowEmitter = new Emitter<[payload: OnUserFollowedPayload]>();
onScrollChangeEmitter = new Emitter<
[scrollX: number, scrollY: number, zoom: AppState["zoom"]]
>();
missingPointerEventCleanupEmitter = new Emitter<
[event: PointerEvent | null]
>();
onRemoveEventListenersEmitter = new Emitter<[]>();
constructor(props: AppProps) {
super(props);
const defaultAppState = getDefaultAppState();
const {
excalidrawAPI,
viewModeEnabled = false,
zenModeEnabled = false,
gridModeEnabled = false,
objectsSnapModeEnabled = false,
theme = defaultAppState.theme,
name = `${t("labels.untitled")}-${getDateTime()}`,
} = props;
this.state = {
...defaultAppState,
theme,
isLoading: true,
...this.getCanvasOffsets(),
viewModeEnabled,
zenModeEnabled,
objectsSnapModeEnabled,
gridSize: gridModeEnabled ? GRID_SIZE : null,
name,
width: window.innerWidth,
height: window.innerHeight,
};
this.id = nanoid();
this.library = new Library(this);
this.actionManager = new ActionManager(
this.syncActionResult,
() => this.state,
() => this.scene.getElementsIncludingDeleted(),
this,
);
this.scene = new Scene();
this.canvas = document.createElement("canvas");
this.rc = rough.canvas(this.canvas);
this.renderer = new Renderer(this.scene);
this.store = new Store();
this.history = new History();
if (excalidrawAPI) {
const api: ExcalidrawImperativeAPI = {
updateScene: this.updateScene,
updateLibrary: this.library.updateLibrary,
addFiles: this.addFiles,
resetScene: this.resetScene,
getSceneElementsIncludingDeleted: this.getSceneElementsIncludingDeleted,
history: {
clear: this.resetHistory,
},
scrollToContent: this.scrollToContent,
getSceneElements: this.getSceneElements,
getAppState: () => this.state,
getFiles: () => this.files,
getName: this.getName,
registerAction: (action: Action) => {
this.actionManager.registerAction(action);
},
refresh: this.refresh,
setToast: this.setToast,
id: this.id,
setActiveTool: this.setActiveTool,
setCursor: this.setCursor,
resetCursor: this.resetCursor,
updateFrameRendering: this.updateFrameRendering,
toggleSidebar: this.toggleSidebar,
onChange: (cb) => this.onChangeEmitter.on(cb),
onPointerDown: (cb) => this.onPointerDownEmitter.on(cb),
onPointerUp: (cb) => this.onPointerUpEmitter.on(cb),
onScrollChange: (cb) => this.onScrollChangeEmitter.on(cb),
onUserFollow: (cb) => this.onUserFollowEmitter.on(cb),
} as const;
if (typeof excalidrawAPI === "function") {
excalidrawAPI(api);
} else {
console.error("excalidrawAPI should be a function!");
}
}
this.excalidrawContainerValue = {
container: this.excalidrawContainerRef.current,
id: this.id,
};
this.fonts = new Fonts({ scene: this.scene });
this.history = new History();
this.actionManager.registerAll(actions);
this.actionManager.registerAction(
createUndoAction(this.history, this.store),
);
this.actionManager.registerAction(
createRedoAction(this.history, this.store),
);
}
private onWindowMessage(event: MessageEvent) {
if (
event.origin !== "https://player.vimeo.com" &&
event.origin !== "https://www.youtube.com"
) {
return;
}
let data = null;
try {
data = JSON.parse(event.data);
} catch (e) {}
if (!data) {
return;
}
switch (event.origin) {
case "https://player.vimeo.com":
//Allowing for multiple instances of Excalidraw running in the window
if (data.method === "paused") {
let source: Window | null = null;
const iframes = document.body.querySelectorAll(
"iframe.excalidraw__embeddable",
);
if (!iframes) {
break;
}
for (const iframe of iframes as NodeListOf<HTMLIFrameElement>) {
if (iframe.contentWindow === event.source) {
source = iframe.contentWindow;
}
}
source?.postMessage(
JSON.stringify({
method: data.value ? "play" : "pause",
value: true,
}),
"*",
);
}
break;
case "https://www.youtube.com":
if (
data.event === "infoDelivery" &&
data.info &&
data.id &&
typeof data.info.playerState === "number"
) {
const id = data.id;
const playerState = data.info.playerState as number;
if (
(Object.values(YOUTUBE_STATES) as number[]).includes(playerState)
) {
YOUTUBE_VIDEO_STATES.set(
id,
playerState as ValueOf<typeof YOUTUBE_STATES>,
);
}
}
break;
}
}
private cacheEmbeddableRef(
element: ExcalidrawIframeLikeElement,
ref: HTMLIFrameElement | null,
) {
if (ref) {
this.iFrameRefs.set(element.id, ref);
}
}
private getHTMLIFrameElement(
element: ExcalidrawIframeLikeElement,
): HTMLIFrameElement | undefined {
return this.iFrameRefs.get(element.id);
}
private handleEmbeddableCenterClick(element: ExcalidrawIframeLikeElement) {
if (
this.state.activeEmbeddable?.element === element &&
this.state.activeEmbeddable?.state === "active"
) {
return;
}
// The delay serves two purposes
// 1. To prevent first click propagating to iframe on mobile,
// else the click will immediately start and stop the video
// 2. If the user double clicks the frame center to activate it
// without the delay youtube will immediately open the video
// in fullscreen mode
setTimeout(() => {
this.setState({
activeEmbeddable: { element, state: "active" },
selectedElementIds: { [element.id]: true },
draggingElement: null,
selectionElement: null,
});
}, 100);
if (isIframeElement(element)) {
return;
}
const iframe = this.getHTMLIFrameElement(element);
if (!iframe?.contentWindow) {
return;
}
if (iframe.src.includes("youtube")) {
const state = YOUTUBE_VIDEO_STATES.get(element.id);
if (!state) {
YOUTUBE_VIDEO_STATES.set(element.id, YOUTUBE_STATES.UNSTARTED);
iframe.contentWindow.postMessage(
JSON.stringify({
event: "listening",
id: element.id,
}),
"*",
);
}
switch (state) {
case YOUTUBE_STATES.PLAYING:
case YOUTUBE_STATES.BUFFERING:
iframe.contentWindow?.postMessage(
JSON.stringify({
event: "command",
func: "pauseVideo",
args: "",
}),
"*",
);
break;
default:
iframe.contentWindow?.postMessage(
JSON.stringify({
event: "command",
func: "playVideo",
args: "",
}),
"*",
);
}
}
if (iframe.src.includes("player.vimeo.com")) {
iframe.contentWindow.postMessage(
JSON.stringify({
method: "paused", //video play/pause in onWindowMessage handler
}),
"*",
);
}
}
private isIframeLikeElementCenter(
el: ExcalidrawIframeLikeElement | null,
event: React.PointerEvent<HTMLElement> | PointerEvent,
sceneX: number,
sceneY: number,
) {
return (
el &&
!event.altKey &&
!event.shiftKey &&
!event.metaKey &&
!event.ctrlKey &&
(this.state.activeEmbeddable?.element !== el ||
this.state.activeEmbeddable?.state === "hover" ||
!this.state.activeEmbeddable) &&
sceneX >= el.x + el.width / 3 &&
sceneX <= el.x + (2 * el.width) / 3 &&
sceneY >= el.y + el.height / 3 &&
sceneY <= el.y + (2 * el.height) / 3
);
}
private updateEmbedValidationStatus = (
element: ExcalidrawEmbeddableElement,
status: boolean,
) => {
this.embedsValidationStatus.set(element.id, status);
ShapeCache.delete(element);
};
private updateEmbeddables = () => {
const iframeLikes = new Set<ExcalidrawIframeLikeElement["id"]>();
let updated = false;
this.scene.getNonDeletedElements().filter((element) => {
if (isEmbeddableElement(element)) {
iframeLikes.add(element.id);
if (!this.embedsValidationStatus.has(element.id)) {
updated = true;
const validated = embeddableURLValidator(
element.link,
this.props.validateEmbeddable,
);
this.updateEmbedValidationStatus(element, validated);
}
} else if (isIframeElement(element)) {
iframeLikes.add(element.id);
}
return false;
});
if (updated) {
this.scene.triggerUpdate();
}
// GC
this.iFrameRefs.forEach((ref, id) => {
if (!iframeLikes.has(id)) {
this.iFrameRefs.delete(id);
}
});
};
private renderEmbeddables() {
const scale = this.state.zoom.value;
const normalizedWidth = this.state.width;
const normalizedHeight = this.state.height;
const embeddableElements = this.scene
.getNonDeletedElements()
.filter(
(el): el is Ordered<NonDeleted<ExcalidrawIframeLikeElement>> =>
(isEmbeddableElement(el) &&
this.embedsValidationStatus.get(el.id) === true) ||
isIframeElement(el),
);
return (
<>
{embeddableElements.map((el) => {
const { x, y } = sceneCoordsToViewportCoords(
{ sceneX: el.x, sceneY: el.y },
this.state,
);
const isVisible = isElementInViewport(
el,
normalizedWidth,
normalizedHeight,
this.state,
this.scene.getNonDeletedElementsMap(),
);
const hasBeenInitialized = this.initializedEmbeds.has(el.id);
if (isVisible && !hasBeenInitialized) {
this.initializedEmbeds.add(el.id);
}
const shouldRender = isVisible || hasBeenInitialized;
if (!shouldRender) {
return null;
}
let src: IframeData | null;
if (isIframeElement(el)) {
src = null;
const data: MagicCacheData = (el.customData?.generationData ??
this.magicGenerations.get(el.id)) || {
status: "error",
message: "No generation data",