import * as React from "react"; import PropTypes from "prop-types"; import { useEffect, useRef, useCallback } from "react"; import { debounce, isEqual } from "radash"; import { Tldraw, DefaultColorStyle, DefaultDashStyle, DefaultFillStyle, DefaultFontStyle, DefaultSizeStyle, InstancePresenceRecordType, setDefaultUiAssetUrls, setDefaultEditorAssetUrls, } from "@bigbluebutton/tldraw"; import "@bigbluebutton/tldraw/tldraw.css"; import { compressToBase64, decompressFromBase64 } from 'lz-string'; import SlideCalcUtil from "/imports/utils/slideCalcUtils"; import { HUNDRED_PERCENT } from "/imports/utils/slideCalcUtils"; // eslint-disable-next-line import/no-extraneous-dependencies import Settings from '/imports/ui/services/settings'; import meetingClientSettingsInitialValues from '/imports/ui/core/initial-values/meetingClientSettings'; import getFromUserSettings from '/imports/ui/services/users-settings'; import KEY_CODES from "/imports/utils/keyCodes"; import Styled from "./styles"; import { mapLanguage, isValidShapeType, } from "./utils"; import { useMouseEvents, useCursor } from "./hooks"; import { notifyShapeNumberExceeded, getCustomEditorAssetUrls, getCustomAssetUrls } from "./service"; import NoopTool from './custom-tools/noop-tool/component'; import { PollShapeUtil } from './custom-shapes/poll/component'; const CAMERA_TYPE = "camera"; // Helper functions const deleteLocalStorageItemsWithPrefix = (prefix) => { const keysToRemove = Object.keys(localStorage).filter((key) => key.startsWith(prefix) ); keysToRemove.forEach((key) => localStorage.removeItem(key)); }; // Example of typical LocalStorage entry tldraw creates: // `{ TLDRAW_USER_DATA_v3: '{"version":2,"user":{"id":"epDk1 ...` const clearTldrawCache = () => { deleteLocalStorageItemsWithPrefix("TLDRAW"); }; const calculateEffectiveZoom = (initViewboxWidth, curViewboxWidth, initViewboxHeight, curViewboxHeight) => { // Calculate the effective zoom level based on the change in viewBox dimensions const widthZoomValue = (initViewboxWidth * 100) / curViewboxWidth; const heightZoomValue = (initViewboxHeight * 100) / curViewboxHeight; // Take the smaller zoom value to ensure the entire content fits in the viewbox const effectiveZoomValue = Math.min(widthZoomValue, heightZoomValue); return effectiveZoomValue; }; const determineViewerFitToWidth = (currentPresentationPage) => { return ( currentPresentationPage?.scaledViewBoxWidth === currentPresentationPage?.scaledWidth && currentPresentationPage?.scaledViewBoxHeight !== currentPresentationPage?.scaledHeight ); }; const createCamera = (pageId, zoomLevel) => ({ id: `camera:page:${pageId}`, meta: {}, typeName: CAMERA_TYPE, x: 0, y: 0, z: zoomLevel, }); function usePrevious(value) { const ref = useRef(); useEffect(() => { ref.current = value; }, [value]); return ref.current; } const defaultUser = { userId: '', }; const Whiteboard = React.memo(function Whiteboard(props) { const { isPresenter = false, removeShapes, persistShapeWrapper, shapes, assets, currentUser = defaultUser, whiteboardId = undefined, zoomSlide, curPageId, zoomChanger, isMultiUserActive, isRTL, fitToWidth, zoomValue, colorStyle, dashStyle, fillStyle, fontStyle, sizeStyle, presentationAreaHeight, presentationAreaWidth, setTldrawIsMounting, setTldrawAPI, whiteboardToolbarAutoHide, toggleToolsAnimations, animations, isToolbarVisible, isModerator, currentPresentationPage, presentationId = undefined, hasWBAccess, bgShape, publishCursorUpdate, otherCursors, hideViewersCursor, presentationHeight, presentationWidth, skipToSlide, intl, maxNumberOfAnnotations, notifyNotAllowedChange, locale, darkTheme, selectedLayout, isInfiniteWhiteboard, whiteboardWriters, } = props; clearTldrawCache(); const [tlEditor, setTlEditor] = React.useState(null); const [isMounting, setIsMounting] = React.useState(true); const [initialViewBoxWidth, setInitialViewBoxWidth] = React.useState(null); const [initialViewBoxHeight, setInitialViewBoxHeight] = React.useState(null); if (isMounting) { setDefaultEditorAssetUrls(getCustomEditorAssetUrls()); setDefaultUiAssetUrls(getCustomAssetUrls()); } const whiteboardRef = React.useRef(null); const zoomValueRef = React.useRef(null); const prevShapesRef = React.useRef(shapes); const tlEditorRef = React.useRef(tlEditor); const slideChanged = React.useRef(false); const slideNext = React.useRef(null); const prevZoomValueRef = React.useRef(null); const initialZoomRef = useRef(null); const isMouseDownRef = useRef(false); const isMountedRef = useRef(false); const isWheelZoomRef = useRef(false); const isPresenterRef = useRef(isPresenter); const whiteboardIdRef = React.useRef(whiteboardId); const curPageIdRef = React.useRef(curPageId); const hasWBAccessRef = React.useRef(hasWBAccess); const isModeratorRef = React.useRef(isModerator); const currentPresentationPageRef = React.useRef(currentPresentationPage); const initialViewBoxWidthRef = React.useRef(null); const initialViewBoxHeightRef = React.useRef(null); const previousTool = React.useRef(null); const THRESHOLD = 0.1; const CAMERA_UPDATE_DELAY = 650; const lastKnownHeight = React.useRef(presentationAreaHeight); const lastKnownWidth = React.useRef(presentationAreaWidth); const [shapesVersion, setShapesVersion] = React.useState(0); const customShapeUtils = [PollShapeUtil]; const customTools = [NoopTool]; const presenterChanged = usePrevious(isPresenter) !== isPresenter; let clipboardContent = null; let isPasting = false; let pasteTimeout = null; const setIsMouseDown = (val) => { isMouseDownRef.current = val; }; const setIsWheelZoom = (val) => { isWheelZoomRef.current = val; }; const setWheelZoomTimeout = () => { isWheelZoomRef.currentTimeout = setTimeout(() => { setIsWheelZoom(false); }, 300); }; React.useEffect(() => { currentPresentationPageRef.current = currentPresentationPage; }, [currentPresentationPage]); React.useEffect(() => { curPageIdRef.current = curPageId; }, [curPageId]); React.useEffect(() => { isModeratorRef.current = isModerator; }, [isModerator]); React.useEffect(() => { whiteboardIdRef.current = whiteboardId; }, [whiteboardId]); React.useEffect(() => { hasWBAccessRef.current = hasWBAccess; if (!hasWBAccess && !isPresenter) { tlEditorRef?.current?.setCurrentTool('noop'); } else if (hasWBAccess && !isPresenter) { tlEditorRef?.current?.setCurrentTool('draw'); } }, [hasWBAccess]); React.useEffect(() => { isPresenterRef.current = isPresenter; if (!hasWBAccessRef.current && !isPresenter) { tlEditorRef?.current?.setCurrentTool('noop'); } }, [isPresenter]); React.useEffect(() => { if (!isEqual(prevShapesRef.current, shapes)) { prevShapesRef.current = shapes; setShapesVersion((v) => v + 1); } }, [shapes]); React.useEffect(() => { if (whiteboardRef.current) { whiteboardRef.current.addEventListener("keydown", handleKeyDown, { capture: true, }); } return () => { whiteboardRef.current?.removeEventListener("keydown", handleKeyDown); }; }, [whiteboardRef.current]); const language = React.useMemo(() => { return mapLanguage(locale?.toLowerCase() || "en"); }, [locale]); const [cursorPosition, updateCursorPosition] = useCursor( publishCursorUpdate, whiteboardIdRef.current ); const pasteTldrawContent = (editor, clipboard, point) => { const p = point ?? (editor.inputs.shiftKey ? editor.inputs.currentPagePoint : undefined); editor.mark('paste'); editor.putContentOntoCurrentPage(clipboard, { point: p, select: true, }); }; const handleCut = useCallback((shouldCopy) => { const selectedShapes = tlEditorRef.current?.getSelectedShapes(); if (!selectedShapes || selectedShapes.length === 0) { return; } if (shouldCopy) { handleCopy(); } tlEditorRef.current?.deleteShapes(selectedShapes.map(shape => shape.id)); }, [tlEditorRef]); const handleCopy = useCallback(() => { const selectedShapes = tlEditorRef.current?.getSelectedShapes(); if (!selectedShapes || selectedShapes.length === 0) { return; } const content = tlEditorRef.current?.getContentFromCurrentPage(selectedShapes.map(shape => shape.id)); if (content) { clipboardContent = content; const stringifiedClipboard = compressToBase64( JSON.stringify({ type: 'application/tldraw', kind: 'content', data: content, }) ); if (navigator.clipboard?.write) { const htmlBlob = new Blob([`${stringifiedClipboard}`], { type: 'text/html', }); navigator.clipboard.write([ new ClipboardItem({ 'text/html': htmlBlob, 'text/plain': new Blob([''], { type: 'text/plain' }), }), ]); } else if (navigator.clipboard.writeText) { navigator.clipboard.writeText(`${stringifiedClipboard}`); } } }, [tlEditorRef]); const handlePaste = useCallback(() => { if (isPasting) { return; } isPasting = true; clearTimeout(pasteTimeout); pasteTimeout = setTimeout(() => { if (clipboardContent) { pasteTldrawContent(tlEditorRef.current, clipboardContent); isPasting = false; } else { navigator.clipboard.readText().then((text) => { const match = text.match(/(.*)<\/tldraw>/); if (match && match[1]) { const content = JSON.parse(decompressFromBase64(match[1])); pasteTldrawContent(tlEditorRef.current, content); } isPasting = false; }).catch((error) => { isPasting = false; }); } }, 100); }, [tlEditorRef]); const handleKeyDown = useCallback((event) => { const debouncedUndo = debounce({ delay: 150 }, () => { tlEditorRef.current?.undo(); }); if (event.key === 'Escape' || event.keyCode === 27) { tlEditorRef.current?.deselect(...tlEditorRef.current?.getSelectedShapes()); return; } const editingShape = tlEditorRef.current?.getEditingShape(); if (editingShape && (isPresenterRef.current || hasWBAccessRef.current)) { return; } if (event.key === 'Delete') { handleCut(false); return; } if (event.key === ' ' && tlEditorRef.current?.getCurrentToolId() !== 'hand' && isPresenterRef.current) { previousTool.current = tlEditorRef.current?.getCurrentToolId(); tlEditorRef.current?.setCurrentTool("hand"); return; } // Mapping of simple key shortcuts to tldraw functions const simpleKeyMap = { 'v': () => tlEditorRef.current?.setCurrentTool("select"), 'd': () => tlEditorRef.current?.setCurrentTool("draw"), 'e': () => tlEditorRef.current?.setCurrentTool("eraser"), 'h': () => tlEditorRef.current?.setCurrentTool("hand"), 'r': () => tlEditorRef.current?.setCurrentTool("rectangle"), 'o': () => tlEditorRef.current?.setCurrentTool("ellipse"), 'a': () => tlEditorRef.current?.setCurrentTool("arrow"), 'l': () => tlEditorRef.current?.setCurrentTool("line"), 't': () => tlEditorRef.current?.setCurrentTool("text"), 'f': () => tlEditorRef.current?.setCurrentTool("frame"), 'n': () => tlEditorRef.current?.setCurrentTool("note"), }; if (event.ctrlKey || event.metaKey) { const ctrlKeyMap = { 'a': () => { tlEditorRef.current?.selectAll(); tlEditorRef.current?.setCurrentTool("select"); }, 'd': () => { tlEditorRef.current?.duplicateShapes(tlEditorRef.current?.getSelectedShapes(), { x: 35, y: 35 }); tlEditorRef.current?.selectNone(); }, 'x': () => { handleCut(true); }, 'c': () => { handleCopy(); }, 'v': () => { if (!isPasting) { handlePaste(); } }, 'z': debouncedUndo, }; if (ctrlKeyMap[event.key]) { event.preventDefault(); event.stopPropagation(); ctrlKeyMap[event.key](); return; } } if (simpleKeyMap[event.key]) { event.preventDefault(); event.stopPropagation(); simpleKeyMap[event.key](); return; } const moveDistance = 10; const selectedShapes = tlEditorRef.current?.getSelectedShapes().map(shape => shape.id); const arrowKeyMap = { 'ArrowUp': { x: 0, y: -moveDistance }, 'ArrowDown': { x: 0, y: moveDistance }, 'ArrowLeft': { x: -moveDistance, y: 0 }, 'ArrowRight': { x: moveDistance, y: 0 }, }; if (arrowKeyMap[event.key]) { event.preventDefault(); event.stopPropagation(); tlEditorRef.current?.nudgeShapes(selectedShapes, arrowKeyMap[event.key], { squashing: true }); } }, [tlEditorRef, isPresenterRef, hasWBAccessRef, previousTool, handleCut, handleCopy, handlePaste]); const handleTldrawMount = (editor) => { setTlEditor(editor); setTldrawAPI(editor); editor?.user?.updateUserPreferences({ locale: language }); const debouncePersistShape = debounce({ delay: 0 }, persistShapeWrapper); const colorStyles = [ "black", "blue", "green", "grey", "light-blue", "light-green", "light-red", "light-violet", "orange", "red", "violet", "yellow", ]; const dashStyles = ["dashed", "dotted", "draw", "solid"]; const fillStyles = ["none", "pattern", "semi", "solid"]; const fontStyles = ["draw", "mono", "sans", "serif"]; const sizeStyles = ["l", "m", "s", "xl"]; if (colorStyles.includes(colorStyle)) { editor.setStyleForNextShapes(DefaultColorStyle, colorStyle); } if (dashStyles.includes(dashStyle)) { editor.setStyleForNextShapes(DefaultDashStyle, dashStyle); } if (fillStyles.includes(fillStyle)) { editor.setStyleForNextShapes(DefaultFillStyle, fillStyle); } if (fontStyles.includes(fontStyle)) { editor.setStyleForNextShapes(DefaultFontStyle, fontStyle); } if (sizeStyles.includes(sizeStyle)) { editor.setStyleForNextShapes(DefaultSizeStyle, sizeStyle); } editor.store.listen( (entry) => { const { changes } = entry; const { added, updated, removed } = changes; const addedCount = Object.keys(added).length; const shapeNumberExceeded = Object.keys(prevShapesRef.current).length + addedCount > maxNumberOfAnnotations; const invalidShapeType = Object.keys(added).find((id) => !isValidShapeType(added[id])); if (shapeNumberExceeded || invalidShapeType) { // notify and undo last command without persisting to not generate the onUndo/onRedo callback if (shapeNumberExceeded) { notifyShapeNumberExceeded(intl, maxNumberOfAnnotations); } else { notifyNotAllowedChange(intl); } editor.history.undo({ persist: false }); } else { Object.values(added).forEach((record) => { const updatedRecord = { ...record, meta: { ...record.meta, createdBy: currentUser?.userId, }, }; persistShapeWrapper( updatedRecord, whiteboardIdRef.current, isModeratorRef.current ); }); } Object.values(updated).forEach(([_, record]) => { const createdBy = prevShapesRef.current[record?.id]?.meta?.createdBy || currentUser?.userId; const updatedRecord = { ...record, meta: { createdBy, updatedBy: currentUser?.userId, }, }; persistShapeWrapper( updatedRecord, whiteboardIdRef.current, isModeratorRef.current ); }); Object.values(removed).forEach((record) => { removeShapes([record?.id]); }); }, { source: "user", scope: "document" } ); editor.store.listen( (entry) => { const { changes, source } = entry; const { updated } = changes; const { "pointer:pointer": pointers } = updated; if ((isPresenterRef.current || hasWBAccessRef.current) && pointers) { const [prevPointer, nextPointer] = pointers; updateCursorPosition(nextPointer?.x, nextPointer?.y); } const camKey = `camera:page:${curPageIdRef.current}`; const { [camKey]: cameras } = updated; if (cameras) { const [prevCam, nextCam] = cameras; const panned = prevCam.x !== nextCam.x || prevCam.y !== nextCam.y; if (panned && isPresenterRef.current) { let viewedRegionW = SlideCalcUtil.calcViewedRegionWidth( editor?.getViewportPageBounds()?.w, currentPresentationPageRef.current?.scaledWidth ); let viewedRegionH = SlideCalcUtil.calcViewedRegionHeight( editor?.getViewportPageBounds()?.h, currentPresentationPageRef.current?.scaledHeight ); zoomSlide(viewedRegionW, viewedRegionH, nextCam.x, nextCam.y); } } }, { source: "user" } ); if (editor && curPageIdRef.current) { const pages = [ { meta: {}, id: `page:${curPageIdRef.current}`, name: `Slide ${curPageIdRef.current}`, index: `a1`, typeName: "page", }, ]; editor.store.mergeRemoteChanges(() => { editor.batch(() => { editor.store.put(pages); editor.store.put(assets); editor.setCurrentPage(`page:${curPageIdRef.current}`); editor.store.put(bgShape); editor.history.clear(); }); }); const remoteShapes = shapes; const localShapes = editor.store.allRecords(); const filteredShapes = localShapes.filter((item) => item.typeName === "shape") || []; const localShapesObj = {}; filteredShapes.forEach((shape) => { localShapesObj[shape.id] = shape; }); const shapesToAdd = []; for (let id in remoteShapes) { if ( !localShapesObj[id] || JSON.stringify(remoteShapes[id]) !== JSON.stringify(localShapesObj[id]) ) { shapesToAdd.push(remoteShapes[id]); } } editor.store.mergeRemoteChanges(() => { if (shapesToAdd && shapesToAdd.length) { shapesToAdd.forEach((shape) => { delete shape.isModerator; delete shape.questionType; }); editor.store.put(shapesToAdd); } }); editor.store.onBeforeChange = (prev, next, source) => { if (next?.typeName === "instance_page_state") { if (isPresenterRef.current || isModeratorRef.current) return next; // Filter selectedShapeIds based on shape owner if (next.selectedShapeIds.length > 0 && !isEqual(prev.selectedShapeIds, next.selectedShapeIds)) { next.selectedShapeIds = next.selectedShapeIds.filter((shapeId) => { const shapeOwner = prevShapesRef.current[shapeId]?.meta?.createdBy; return !shapeOwner || shapeOwner === currentUser?.userId; }); } if (!isEqual(prev.hoveredShapeId, next.hoveredShapeId)) { const hoveredShapeOwner = prevShapesRef.current[next.hoveredShapeId]?.meta?.createdBy; if (hoveredShapeOwner !== currentUser?.userId) { next.hoveredShapeId = null; } } return next; } // Get viewport dimensions and bounds const viewportPageBounds = editor.getViewportPageBounds(); const { w: viewportWidth, h: viewportHeight } = viewportPageBounds; const presentationWidth = currentPresentationPage?.scaledWidth || 0; const presentationHeight = currentPresentationPage?.scaledHeight || 0; // Adjust camera position to ensure it stays within bounds const panned = next?.id?.includes("camera") && (prev.x !== next.x || prev.y !== next.y); if (panned && !currentPresentationPageRef.current?.infiniteWhiteboard) { // Horizontal bounds check if (next.x > 0) { next.x = 0; } else if (next.x < -(presentationWidth - viewportWidth)) { next.x = -(presentationWidth - viewportWidth); } // Vertical bounds check if (next.y > 0) { next.y = 0; } else if (next.y < -(presentationHeight - viewportHeight)) { next.y = -(presentationHeight - viewportHeight); } } return next; }; if (!isPresenterRef.current && !hasWBAccessRef.current) { editor.setCurrentTool('noop'); } } isMountedRef.current = true; }; const { shapesToAdd, shapesToUpdate, shapesToRemove } = React.useMemo(() => { const localShapes = tlEditorRef.current?.getCurrentPageShapes(); const filteredShapes = localShapes?.filter((item) => item?.index !== "a0") || []; const localLookup = new Map( filteredShapes.map((shape) => [shape.id, shape]) ); const remoteShapeIds = Object.keys(prevShapesRef.current); const toAdd = []; const toUpdate = []; const toRemove = []; Object.values(prevShapesRef.current).forEach((remoteShape) => { if (!remoteShape.id) return; const localShape = localLookup.get(remoteShape.id); const prevShape = prevShapesRef.current[remoteShape.id]; if (!localShape) { delete remoteShape.isModerator; delete remoteShape.questionType; toAdd.push(remoteShape); } else { const remoteShapeMeta = remoteShape?.meta; const isCreatedByCurrentUser = remoteShapeMeta?.createdBy === currentUser?.userId; const isUpdatedByCurrentUser = remoteShapeMeta?.updatedBy === currentUser?.userId; // System-level shapes (background image) lack createdBy and updatedBy metadata, which can cause false positives. // These cases expect an early return and shouldn't be updated. if ( remoteShapeMeta && ( (isCreatedByCurrentUser && isUpdatedByCurrentUser) || (!isCreatedByCurrentUser && isUpdatedByCurrentUser) ) ) { return; } const diff = remoteShape; delete diff.isModerator; delete diff.questionType; toUpdate.push(diff); } }); filteredShapes.forEach((localShape) => { if (!remoteShapeIds.includes(localShape.id)) { toRemove.push(localShape.id); } }); return { shapesToAdd: toAdd, shapesToUpdate: toUpdate, shapesToRemove: toRemove, }; }, [prevShapesRef.current, curPageId]); const setCamera = (zoom, x = 0, y = 0) => { if (tlEditorRef.current) { tlEditorRef.current.setCamera({ x, y, z: zoom }, false); } }; const calculateZoomValue = (localWidth, localHeight, isViewer = false) => { let calcedZoom; calcedZoom = fitToWidth ? presentationAreaWidth / localWidth : Math.min( presentationAreaWidth / localWidth, presentationAreaHeight / localHeight ); return calcedZoom === 0 || calcedZoom === Infinity ? HUNDRED_PERCENT : calcedZoom; }; const calculateZoomWithGapValue = ( localWidth, localHeight, isViewer = false, widthAdjustment = 0 ) => { let presentationWidth = presentationAreaWidth - widthAdjustment; let calcedZoom = (baseZoom = fitToWidth ? presentationWidth / localWidth : Math.min( presentationWidth / localWidth, presentationAreaHeight / localHeight )); return calcedZoom === 0 || calcedZoom === Infinity ? HUNDRED_PERCENT : calcedZoom; }; useMouseEvents( { whiteboardRef, tlEditorRef, isWheelZoomRef, initialZoomRef }, { isPresenter, hasWBAccess: hasWBAccessRef.current, whiteboardToolbarAutoHide, animations, publishCursorUpdate, whiteboardId: whiteboardIdRef.current, cursorPosition, updateCursorPosition, toggleToolsAnimations, currentPresentationPage, zoomChanger, setIsMouseDown, setIsWheelZoom, setWheelZoomTimeout, } ); React.useEffect(() => { tlEditorRef.current = tlEditor; }, [tlEditor]); React.useEffect(() => { let undoRedoIntervalId = null; const undo = () => { tlEditorRef?.current?.history?.undo(); }; const redo = () => { tlEditorRef?.current?.history?.redo(); }; const handleArrowPress = (event) => { const currPageNum = parseInt(curPageIdRef.current); const shapeSelected = tlEditorRef.current.getSelectedShapes()?.length > 0; const changeSlide = (direction) => { if (!currentPresentationPage) return; let newSlideNum = currPageNum + direction; const outOfBounds = direction > 0 ? newSlideNum > currentPresentationPage?.totalPages : newSlideNum < 1; if (outOfBounds) return; skipToSlide(newSlideNum); zoomChanger(HUNDRED_PERCENT); zoomSlide(HUNDRED_PERCENT, HUNDRED_PERCENT, 0, 0); }; if (!shapeSelected) { if (event.keyCode === KEY_CODES.ARROW_RIGHT) { changeSlide(1); // Move to the next slide } else if (event.keyCode === KEY_CODES.ARROW_LEFT) { changeSlide(-1); // Move to the previous slide } } }; const handleUndoRedoOnCondition = (condition, action) => { if (condition) { action(); } }; const handleKeyDown = (event) => { const isUndo = (event.ctrlKey || event.metaKey) && event.key === "z" && !event.shiftKey; const isRedo = (event.ctrlKey || event.metaKey) && event.shiftKey && event.key === "Z"; if ( (isUndo || isRedo) && (isPresenterRef.current || hasWBAccessRef.current) ) { event.preventDefault(); event.stopPropagation(); if (!undoRedoIntervalId) { undoRedoIntervalId = setInterval(() => { handleUndoRedoOnCondition(isUndo, undo); handleUndoRedoOnCondition(isRedo, redo); }, 300); } } if ( (event.keyCode === KEY_CODES.ARROW_RIGHT || event.keyCode === KEY_CODES.ARROW_LEFT) && isPresenterRef.current ) { handleArrowPress(event); } }; const handleKeyUp = (event) => { if ((event.key === "z" || event.key === "Z") && undoRedoIntervalId) { clearInterval(undoRedoIntervalId); undoRedoIntervalId = null; } if (event.key === ' ') { if (previousTool.current) { tlEditorRef.current?.setCurrentTool(previousTool.current); previousTool.current = null; } } }; whiteboardRef.current?.addEventListener("keydown", handleKeyDown, { capture: true, }); whiteboardRef.current?.addEventListener("keyup", handleKeyUp, { capture: true, }); return () => { whiteboardRef.current?.removeEventListener("keydown", handleKeyDown); whiteboardRef.current?.removeEventListener("keyup", handleKeyUp); if (undoRedoIntervalId) { clearInterval(undoRedoIntervalId); } }; }, [whiteboardRef.current]); React.useEffect(() => { zoomValueRef.current = zoomValue; let timeoutId = null; if ( tlEditor && curPageIdRef.current && currentPresentationPage && isPresenter && isWheelZoomRef.current === false ) { const zoomLevelForReset = initialZoomRef.current || calculateZoomValue( currentPresentationPage.scaledWidth, currentPresentationPage.scaledHeight ); const zoomCamera = zoomValue === HUNDRED_PERCENT ? zoomLevelForReset : (zoomLevelForReset * zoomValue) / HUNDRED_PERCENT; const camera = tlEditorRef.current.getCamera(); const nextCamera = { x: zoomValue === HUNDRED_PERCENT ? 0 : camera.x + ((camera.x + tlEditorRef.current.getViewportPageBounds().w / 2) / zoomCamera - camera.x), y: zoomValue === HUNDRED_PERCENT ? 0 : camera.y + ((camera.y + tlEditorRef.current.getViewportPageBounds().h / 2) / zoomCamera - camera.y), z: zoomCamera, }; if ( zoomValue !== prevZoomValueRef.current || zoomValue === HUNDRED_PERCENT ) { tlEditor.setCamera(nextCamera, false); timeoutId = setTimeout(() => { if (zoomValue === HUNDRED_PERCENT) { zoomChanger(HUNDRED_PERCENT); zoomSlide(HUNDRED_PERCENT, HUNDRED_PERCENT, 0, 0); } else { // Recalculate viewed region width and height for zoomSlide call let viewedRegionW = SlideCalcUtil.calcViewedRegionWidth( tlEditorRef.current.getViewportPageBounds().w, currentPresentationPage.scaledWidth ); let viewedRegionH = SlideCalcUtil.calcViewedRegionHeight( tlEditorRef.current.getViewportPageBounds().h, currentPresentationPage.scaledHeight ); zoomSlide(viewedRegionW, viewedRegionH, nextCamera.x, nextCamera.y); } }, 500); } } // Update the previous zoom value ref with the current zoom value prevZoomValueRef.current = zoomValue; return () => clearTimeout(timeoutId); }, [zoomValue, tlEditor, curPageId, isWheelZoomRef.current]); React.useEffect(() => { // A slight delay to ensure the canvas has rendered const timeoutId = setTimeout(() => { if ( currentPresentationPage.scaledWidth > 0 && currentPresentationPage.scaledHeight > 0 ) { // Subtract the toolbar height from the presentation area height for the presenter const adjustedPresentationAreaHeight = isPresenter ? presentationAreaHeight - 40 : presentationAreaHeight; const slideAspectRatio = currentPresentationPage.scaledWidth / currentPresentationPage.scaledHeight; const presentationAreaAspectRatio = presentationAreaWidth / adjustedPresentationAreaHeight; let initialZoom; if (slideAspectRatio > presentationAreaAspectRatio) { initialZoom = presentationAreaWidth / currentPresentationPage.scaledWidth; } else { initialZoom = adjustedPresentationAreaHeight / currentPresentationPage.scaledHeight; } const tldrawZoom = initialZoom; initialZoomRef.current = initialZoom; prevZoomValueRef.current = zoomValue; } }, CAMERA_UPDATE_DELAY); return () => clearTimeout(timeoutId); }, [ currentPresentationPage.scaledHeight, currentPresentationPage.scaledWidth, presentationAreaWidth, presentationAreaHeight, isPresenter, presentationId, ]); React.useEffect(() => { const handleResize = () => { if (!initialViewBoxWidthRef.current) { initialViewBoxWidthRef.current = currentPresentationPageRef.current?.scaledViewBoxWidth; } if (!initialViewBoxHeightRef.current) { initialViewBoxHeightRef.current = currentPresentationPageRef.current?.scaledViewBoxHeight; } // Calculate the absolute difference const heightDifference = Math.abs( presentationAreaHeight - lastKnownHeight.current ); const widthDifference = Math.abs( presentationAreaWidth - lastKnownWidth.current ); // Check if the difference is greater than the threshold if (heightDifference > THRESHOLD || widthDifference > THRESHOLD) { // Update the last known dimensions lastKnownHeight.current = presentationAreaHeight; lastKnownWidth.current = presentationAreaWidth; if ( presentationAreaHeight > 0 && presentationAreaWidth > 0 && tlEditor && currentPresentationPage && currentPresentationPage.scaledWidth > 0 && currentPresentationPage.scaledHeight > 0 ) { const currentZoom = zoomValueRef.current || HUNDRED_PERCENT; const baseZoom = calculateZoomValue( currentPresentationPage.scaledWidth, currentPresentationPage.scaledHeight ); let adjustedZoom = baseZoom * (currentZoom / HUNDRED_PERCENT); if (isPresenter) { const container = document.querySelector( '[data-test="presentationContainer"]' ); const innerWrapper = document.getElementById( "presentationInnerWrapper" ); const containerWidth = container ? container.offsetWidth : 0; const innerWrapperWidth = innerWrapper ? innerWrapper.offsetWidth : 0; const widthGap = Math.max(containerWidth - innerWrapperWidth, 0); const camera = tlEditorRef.current.getCamera(); let adjustedZoom; if (widthGap > 0) { adjustedZoom = calculateZoomWithGapValue( currentPresentationPage.scaledWidth, currentPresentationPage.scaledHeight, false, widthGap ); adjustedZoom *= currentZoom / HUNDRED_PERCENT; } else { adjustedZoom = baseZoom * (currentZoom / HUNDRED_PERCENT); } const zoomToApply = widthGap > 0 ? adjustedZoom : baseZoom * (currentZoom / HUNDRED_PERCENT); const formattedPageId = Number(curPageIdRef?.current); const cameras = [ createCamera(formattedPageId - 1, zoomToApply), createCamera(formattedPageId, zoomToApply), createCamera(formattedPageId + 1, zoomToApply), ]; tlEditorRef.current.store.put(cameras); setCamera(zoomToApply, camera.x, camera.y); } else { // Viewer logic const effectiveZoom = calculateEffectiveZoom( initialViewBoxWidthRef.current, currentPresentationPage.scaledViewBoxWidth, initialViewBoxHeightRef.current, currentPresentationPage.scaledViewBoxHeight ); adjustedZoom = baseZoom * (effectiveZoom / HUNDRED_PERCENT); const camera = tlEditorRef.current.getCamera(); const formattedPageId = Number(curPageIdRef?.current); const cameras = [ createCamera(formattedPageId - 1, adjustedZoom), createCamera(formattedPageId, adjustedZoom), createCamera(formattedPageId + 1, adjustedZoom), ]; tlEditorRef.current.store.put(cameras); setCamera(adjustedZoom, camera.x, camera.y); } } } }; const timeoutId = setTimeout(handleResize, CAMERA_UPDATE_DELAY); return () => clearTimeout(timeoutId); }, [presentationAreaHeight, presentationAreaWidth, curPageId, presentationId]); React.useEffect(() => { if (!fitToWidth && isPresenter) { zoomChanger(HUNDRED_PERCENT); zoomSlide(HUNDRED_PERCENT, HUNDRED_PERCENT, 0, 0); } }, [fitToWidth, isPresenter]); React.useEffect(() => { if (!isPresenter && tlEditorRef.current && initialViewBoxWidthRef.current && initialViewBoxHeightRef.current && currentPresentationPage) { const effectiveZoom = calculateEffectiveZoom( initialViewBoxWidthRef.current, currentPresentationPage.scaledViewBoxWidth, initialViewBoxHeightRef.current, currentPresentationPage.scaledViewBoxHeight ); let adjustedZoom = calculateZoomValue( currentPresentationPage.scaledWidth, currentPresentationPage.scaledHeight ) * (effectiveZoom / HUNDRED_PERCENT); const adjustedXPos = currentPresentationPage.xOffset; const adjustedYPos = currentPresentationPage.yOffset; setCamera( adjustedZoom, adjustedXPos, adjustedYPos ); } }, [currentPresentationPage]); React.useEffect(() => { if (shapesToAdd.length || shapesToUpdate.length || shapesToRemove.length) { const tlStoreUpdateTimeoutId = setTimeout(() => { tlEditor?.store?.mergeRemoteChanges(() => { if (shapesToRemove.length > 0) { tlEditor?.store?.remove(shapesToRemove); } if (shapesToAdd.length) { tlEditor?.store?.put(shapesToAdd); } if (shapesToUpdate.length) { const updatedShapes = shapesToUpdate.map(shape => { const currentShape = tlEditor?.getShape(shape.id); if (currentShape) { return { ...currentShape, ...shape }; } return null; }).filter(Boolean); if (updatedShapes.length) { tlEditor?.store?.put(updatedShapes); } } }); }, 300); return () => clearTimeout(tlStoreUpdateTimeoutId); } }, [shapesToAdd, shapesToUpdate, shapesToRemove]); // Updating presences in tldraw store based on changes in cursors React.useEffect(() => { if (tlEditorRef.current) { const useElement = document.querySelector(".tl-cursor use"); if (useElement && !isMultiUserActive && !isPresenter) { useElement.setAttribute("href", "#redPointer"); } else if (useElement) { useElement.setAttribute("href", "#cursor"); } const idsToRemove = []; // Get all presence records from the store const allRecords = tlEditorRef.current.store.allRecords(); const presenceRecords = allRecords.filter(record => record.id.startsWith('instance_presence:')); // Check if any presence records correspond to users not in whiteboardWriters presenceRecords.forEach(record => { const userId = record.userId.split('instance_presence:')[1]; const hasAccessToWhiteboard = whiteboardWriters.some(writer => writer.userId === userId); if (!hasAccessToWhiteboard) { idsToRemove.push(record.id); } }); const updatedPresences = otherCursors .map(({ userId, user, xPercent, yPercent }) => { const { presenter, name } = user; const id = InstancePresenceRecordType.createId(userId); const active = xPercent !== -1 && yPercent !== -1; // if cursor is not active remove it from tldraw store if ( !active || (hideViewersCursor && user.role === "VIEWER" && !currentUser?.presenter) || (!presenter && !isMultiUserActive) ) { idsToRemove.push(id); return null; } const cursor = { x: xPercent, y: yPercent, type: "default", rotation: 0, }; const color = presenter ? "#FF0000" : "#70DB70"; const c = { ...InstancePresenceRecordType.create({ id, currentPageId: `page:${curPageIdRef.current}`, userId, userName: name, cursor, color, }), lastActivityTimestamp: Date.now(), }; return c; }) .filter((cursor) => cursor && cursor.userId !== currentUser?.userId); if (idsToRemove.length) { tlEditorRef.current?.store.remove(idsToRemove); } // If there are any updated presences, put them all in the store if (updatedPresences.length) { tlEditorRef.current?.store.put(updatedPresences); } } }, [otherCursors, whiteboardWriters]); // set current tldraw page when presentation id updates React.useEffect(() => { if (tlEditorRef.current && curPageIdRef.current !== "0") { const pages = [ { meta: {}, id: `page:${curPageIdRef.current}`, name: `Slide ${curPageIdRef.current}`, index: `a1`, typeName: "page", } ]; tlEditorRef.current.store.mergeRemoteChanges(() => { tlEditorRef.current.batch(() => { tlEditorRef.current.store.put(pages); const tlZ = tlEditorRef.current.getCamera()?.z; const formattedPageId = Number(curPageIdRef?.current); const cameras = [ createCamera(formattedPageId - 1, tlZ), createCamera(formattedPageId, tlZ), createCamera(formattedPageId + 1, tlZ), ]; tlEditorRef.current.store.put(cameras); tlEditorRef.current.setCurrentPage(`page:${curPageIdRef.current}`); tlEditorRef.current.store.put(assets); tlEditorRef.current.store.put(bgShape); tlEditorRef.current.history.clear(); }); }); whiteboardToolbarAutoHide && toggleToolsAnimations( "fade-in", "fade-out", "0s", hasWBAccessRef.current || isPresenter ); slideChanged.current = false; slideNext.current = null; } }, [curPageId]); const adjustCameraOnMount = (includeViewerLogic = true) => { if (presenterChanged) { localStorage.removeItem('initialViewBoxWidth'); localStorage.removeItem('initialViewBoxHeight'); } const storedWidth = localStorage.getItem('initialViewBoxWidth'); const storedHeight = localStorage.getItem('initialViewBoxHeight'); if (storedWidth && storedHeight) { initialViewBoxWidthRef.current = parseFloat(storedWidth); initialViewBoxHeightRef.current = parseFloat(storedHeight); } else { const currentZoomLevel = currentPresentationPageRef.current.scaledWidth / currentPresentationPageRef.current.scaledViewBoxWidth; const calculatedWidth = currentZoomLevel !== 1 ? currentPresentationPageRef.current.scaledWidth / currentZoomLevel : currentPresentationPageRef.current.scaledWidth; const calculatedHeight = currentZoomLevel !== 1 ? currentPresentationPageRef.current.scaledHeight / currentZoomLevel : currentPresentationPageRef.current.scaledHeight; initialViewBoxWidthRef.current = calculatedWidth; initialViewBoxHeightRef.current = calculatedHeight; localStorage.setItem('initialViewBoxWidth', calculatedWidth.toString()); localStorage.setItem('initialViewBoxHeight', calculatedHeight.toString()); } setTimeout(() => { if ( presentationAreaHeight > 0 && presentationAreaWidth > 0 && currentPresentationPageRef.current && currentPresentationPageRef.current.scaledWidth > 0 && currentPresentationPageRef.current.scaledHeight > 0 ) { const adjustedPresentationAreaHeight = isPresenter ? presentationAreaHeight - 40 : presentationAreaHeight; let effectiveZoom = calculateEffectiveZoom( initialViewBoxWidthRef.current, currentPresentationPageRef.current.scaledViewBoxWidth, initialViewBoxHeightRef.current, currentPresentationPageRef.current.scaledViewBoxHeight ); let baseZoom; if (isPresenter) { baseZoom = fitToWidth ? presentationAreaWidth / currentPresentationPageRef.current.scaledWidth : Math.min( presentationAreaWidth / currentPresentationPageRef.current.scaledWidth, adjustedPresentationAreaHeight / currentPresentationPageRef.current.scaledHeight ); const zoomAdjustmentFactor = currentPresentationPageRef.current.scaledWidth / currentPresentationPageRef.current.scaledViewBoxWidth; baseZoom *= zoomAdjustmentFactor; const adjustedXPos = currentPresentationPageRef.current.xOffset; const adjustedYPos = currentPresentationPageRef.current.yOffset; setCamera(baseZoom, adjustedXPos, adjustedYPos); } else if (includeViewerLogic) { baseZoom = Math.min( presentationAreaWidth / currentPresentationPageRef.current.scaledWidth, adjustedPresentationAreaHeight / currentPresentationPageRef.current.scaledHeight ); const zoomAdjustmentFactor = currentPresentationPageRef.current.scaledWidth / currentPresentationPageRef.current.scaledViewBoxWidth; baseZoom *= zoomAdjustmentFactor; const presenterXOffset = currentPresentationPageRef.current.xOffset; const presenterYOffset = currentPresentationPageRef.current.yOffset; const adjustedXPos = isInfiniteWhiteboard ? presenterXOffset : presenterXOffset * effectiveZoom; const adjustedYPos = isInfiniteWhiteboard ? presenterYOffset : presenterYOffset * effectiveZoom; setCamera(baseZoom, adjustedXPos, adjustedYPos); } } }, CAMERA_UPDATE_DELAY); }; React.useEffect(() => { if (isMountedRef.current) { adjustCameraOnMount(true); } }, [ isMountedRef.current, presentationId, curPageId, isMultiUserActive, isPresenter, animations, locale, whiteboardToolbarAutoHide, darkTheme, isInfiniteWhiteboard, ]); React.useEffect(() => { if (isMountedRef.current) { adjustCameraOnMount(false); } }, [ isMountedRef.current, selectedLayout, isInfiniteWhiteboard, ]); React.useEffect(() => { setTldrawIsMounting(true); return () => { isMountedRef.current = false; localStorage.removeItem('initialViewBoxWidth'); localStorage.removeItem('initialViewBoxHeight'); }; }, []); React.useEffect(() => { if (isMounting) { setIsMounting(false); /// brings presentation toolbar back setTldrawIsMounting(false); } }, [ tlEditorRef?.current?.camera, presentationAreaWidth, presentationAreaHeight, presentationId, ]); React.useEffect (() => { const bbb_multi_user_tools = getFromUserSettings( 'bbb_multi_user_tools', meetingClientSettingsInitialValues.public.whiteboard.toolbar.multiUserTools, ); const allElements = document.querySelectorAll('[data-testid^="tools."]'); if (bbb_multi_user_tools.length >= 1 && !isModerator) { allElements.forEach((element) => { const toolName = element.getAttribute('data-testid').split('.')[1]; if (!bbb_multi_user_tools.includes(toolName)) { element.style.display = 'none'; } }); } }),[] React.useEffect (() => { const bbb_presenter_tools = getFromUserSettings( 'bbb_presenter_tools', meetingClientSettingsInitialValues.public.whiteboard.toolbar.presenterTools, ); const allElements = document.querySelectorAll('[data-testid^="tools."]'); if (bbb_presenter_tools.length >= 1 && isPresenter) { allElements.forEach((element) => { const toolName = element.getAttribute('data-testid').split('.')[1]; if (!bbb_presenter_tools.includes(toolName)) { element.style.display = 'none'; } }); } }),[] React.useEffect (() => { const bbb_multi_user_pen_only = getFromUserSettings( 'bbb_multi_user_pen_only', false, ); const allElements = document.querySelectorAll('[data-testid^="tools."]'); if (bbb_multi_user_pen_only && !isModerator && !isPresenter) { allElements.forEach((element) => { const toolName = element.getAttribute('data-testid').split('.')[1]; if (toolName != 'draw') { element.style.display = 'none'; } else { element.style.display = 'flex'; } }); } }),[] return (
); }); export default Whiteboard; Whiteboard.propTypes = { isPresenter: PropTypes.bool, isIphone: PropTypes.bool.isRequired, removeShapes: PropTypes.func.isRequired, persistShapeWrapper: PropTypes.func.isRequired, notifyNotAllowedChange: PropTypes.func.isRequired, shapes: PropTypes.objectOf(PropTypes.shape).isRequired, assets: PropTypes.arrayOf(PropTypes.shape).isRequired, currentUser: PropTypes.shape({ userId: PropTypes.string.isRequired, }), whiteboardId: PropTypes.string, zoomSlide: PropTypes.func.isRequired, curPageId: PropTypes.string.isRequired, presentationWidth: PropTypes.number.isRequired, presentationHeight: PropTypes.number.isRequired, zoomChanger: PropTypes.func.isRequired, isRTL: PropTypes.bool.isRequired, fitToWidth: PropTypes.bool.isRequired, zoomValue: PropTypes.number.isRequired, intl: PropTypes.shape({ formatMessage: PropTypes.func.isRequired, }).isRequired, maxStickyNoteLength: PropTypes.number.isRequired, fontFamily: PropTypes.string.isRequired, colorStyle: PropTypes.string.isRequired, dashStyle: PropTypes.string.isRequired, fillStyle: PropTypes.string.isRequired, fontStyle: PropTypes.string.isRequired, sizeStyle: PropTypes.string.isRequired, presentationAreaHeight: PropTypes.number.isRequired, presentationAreaWidth: PropTypes.number.isRequired, maxNumberOfAnnotations: PropTypes.number.isRequired, notifyShapeNumberExceeded: PropTypes.func.isRequired, darkTheme: PropTypes.bool.isRequired, setTldrawIsMounting: PropTypes.func.isRequired, width: PropTypes.number.isRequired, height: PropTypes.number.isRequired, fullscreenElementId: PropTypes.string.isRequired, isFullscreen: PropTypes.bool.isRequired, layoutContextDispatch: PropTypes.func.isRequired, fullscreenAction: PropTypes.string.isRequired, handleToggleFullScreen: PropTypes.func.isRequired, presentationId: PropTypes.string, };