bigbluebutton-Github/bigbluebutton-html5/imports/ui/components/whiteboard/component.jsx
Ramón Souza 1a8a7ccda1
Merge pull request #20280 from KDSBrowne/bbb-20278
fix(whiteboard): Slide Navigation Crash and Event Listener Update
2024-05-21 13:10:28 -03:00

1267 lines
40 KiB
JavaScript

import * as React from "react";
import PropTypes from "prop-types";
import { useRef } from "react";
import { debounce, isEqual } from "radash";
import {
Tldraw,
DefaultColorStyle,
DefaultDashStyle,
DefaultFillStyle,
DefaultFontStyle,
DefaultSizeStyle,
InstancePresenceRecordType,
setDefaultUiAssetUrls,
setDefaultEditorAssetUrls,
} from "@tldraw/tldraw";
import "@tldraw/tldraw/tldraw.css";
import SlideCalcUtil from "/imports/utils/slideCalcUtils";
import { HUNDRED_PERCENT } from "/imports/utils/slideCalcUtils";
// eslint-disable-next-line import/no-extraneous-dependencies
import KEY_CODES from "/imports/utils/keyCodes";
import Styled from "./styles";
import {
mapLanguage,
isValidShapeType,
} from "./utils";
import { useMouseEvents, useCursor } from "./hooks";
import { notifyShapeNumberExceeded, customEditorAssetUrls, customAssetUrls } from "./service";
import NoopTool from './custom-tools/noop-tool/component';
// 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) => {
// Calculate the effective zoom level based on the change in viewBoxWidth
const effectiveZoomValue = (initViewboxWidth * 100) / curViewboxWidth;
return effectiveZoomValue;
};
const determineViewerFitToWidth = (currentPresentationPage) => {
return (
currentPresentationPage?.scaledViewBoxWidth ===
currentPresentationPage?.scaledWidth &&
currentPresentationPage?.scaledViewBoxHeight !==
currentPresentationPage?.scaledHeight
);
};
setDefaultEditorAssetUrls(customEditorAssetUrls);
setDefaultUiAssetUrls(customAssetUrls);
const Whiteboard = React.memo(function Whiteboard(props) {
const {
isPresenter,
removeShapes,
persistShapeWrapper,
shapes,
assets,
currentUser,
whiteboardId,
zoomSlide,
curPageId,
zoomChanger,
isMultiUserActive,
isRTL,
fitToWidth,
zoomValue,
colorStyle,
dashStyle,
fillStyle,
fontStyle,
sizeStyle,
presentationAreaHeight,
presentationAreaWidth,
setTldrawIsMounting,
setTldrawAPI,
whiteboardToolbarAutoHide,
toggleToolsAnimations,
animations,
isToolbarVisible,
isModerator,
currentPresentationPage,
presentationId,
hasWBAccess,
bgShape,
publishCursorUpdate,
otherCursors,
hideViewersCursor,
presentationHeight,
presentationWidth,
skipToSlide,
intl,
maxNumberOfAnnotations,
notifyNotAllowedChange,
locale,
darkTheme,
selectedLayout,
} = props;
clearTldrawCache();
const [tlEditor, setTlEditor] = React.useState(null);
const [isMounting, setIsMounting] = React.useState(true);
const [initialZoomSet, setInitialZoomSet] = React.useState(false);
const [initialViewBoxWidth, setInitialViewBoxWidth] = React.useState(null);
const whiteboardRef = React.useRef(null);
const zoomValueRef = React.useRef(null);
const prevShapesRef = React.useRef(shapes);
const prevOtherCursorsRef = useRef(otherCursors);
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 THRESHOLD = 0.1;
const CAMERA_UPDATE_DELAY = 1000;
const lastKnownHeight = React.useRef(presentationAreaHeight);
const lastKnownWidth = React.useRef(presentationAreaWidth);
const [shapesVersion, setShapesVersion] = React.useState(0);
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");
}
}, [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 (!isEqual(prevOtherCursorsRef.current, otherCursors)) {
prevOtherCursorsRef.current = otherCursors;
}
}, [otherCursors]);
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 handleKeyDown = (event) => {
if (!isPresenterRef.current) {
if (
!hasWBAccessRef.current ||
(hasWBAccessRef.current && !tlEditorRef.current?.getEditingShape())
) {
event.preventDefault();
event.stopPropagation();
return;
}
}
};
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 ((isPresenter || hasWBAccessRef.current) && pointers) {
const [prevPointer, nextPointer] = pointers;
updateCursorPosition(nextPointer?.x, nextPointer?.y);
}
const camKey = `camera:page:${curPageIdRef.current}`;
const { [camKey]: cameras } = updated;
if (cameras) {
const [prevCam, nextCam] = cameras;
const panned = prevCam.x !== nextCam.x || prevCam.y !== nextCam.y;
if (panned && isPresenter) {
let viewedRegionW = SlideCalcUtil.calcViewedRegionWidth(
editor?.getViewportPageBounds()?.w,
currentPresentationPage?.scaledWidth
);
let viewedRegionH = SlideCalcUtil.calcViewedRegionHeight(
editor?.getViewportPageBounds()?.h,
currentPresentationPage?.scaledHeight
);
zoomSlide(viewedRegionW, viewedRegionH, nextCam.x, nextCam.y);
}
}
},
{ source: "user" }
);
if (editor && curPageIdRef.current) {
const pages = [
{
meta: {},
id: `page:${curPageIdRef.current}`,
name: `Slide ${curPageIdRef.current}`,
index: `a1`,
typeName: "page",
},
];
editor.store.mergeRemoteChanges(() => {
editor.batch(() => {
editor.store.put(pages);
// editor.deletePage(editor.currentPageId);
editor.setCurrentPage(`page:${curPageIdRef.current}`);
editor.store.put(assets);
editor.createShapes(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 (isPresenter || 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;
}
const camera = editor?.getCamera();
const { maxX, maxY, minX, minY } = editor.getViewportPageBounds();
const panned =
next?.id?.includes("camera") &&
(prev.x !== next.x || prev.y !== next.y);
const zoomed = next?.id?.includes("camera") && prev.z !== next.z;
if (panned) {
// // limit bounds
if (maxX > currentPresentationPage?.scaledWidth) {
next.x += maxX - currentPresentationPage?.scaledWidth;
}
if (maxY > currentPresentationPage?.scaledHeight) {
next.y += maxY - currentPresentationPage?.scaledHeight;
}
if (next.x > 0 || minX < 0) {
next.x = 0;
}
if (next.y > 0 || minY < 0) {
next.y = 0;
}
}
return next;
};
}
isMountedRef.current = true;
};
const { shapesToAdd, shapesToUpdate, shapesToRemove } = React.useMemo(() => {
const selectedShapeIds = tlEditorRef.current?.getSelectedShapeIds() || [];
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 = [];
filteredShapes.forEach((localShape) => {
if (!remoteShapeIds.includes(localShape.id)) {
toRemove.push(localShape.id);
}
});
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 if (!isEqual(localShape, remoteShape) && prevShape) {
const diff = {
id: remoteShape.id,
type: remoteShape.type,
typeName: remoteShape.typeName,
};
Object.keys(remoteShape).forEach((key) => {
if (
key !== "isModerator" &&
!isEqual(remoteShape[key], localShape[key])
) {
diff[key] = remoteShape[key];
}
});
if (remoteShape.props) {
Object.keys(remoteShape.props).forEach((key) => {
if (!isEqual(remoteShape.props[key], localShape.props[key])) {
diff.props = diff.props || {};
diff.props[key] = remoteShape.props[key];
}
});
}
delete diff.isModerator;
delete diff.questionType;
toUpdate.push(diff);
}
});
return {
shapesToAdd: toAdd,
shapesToUpdate: toUpdate,
shapesToRemove: toRemove,
};
}, [prevShapesRef.current, curPageIdRef.current]);
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;
if (isViewer) {
// Logic originally in calculateViewerZoom
calcedZoom = fitToWidth
? presentationAreaWidth / localWidth
: Math.min(
presentationAreaWidth / localWidth,
presentationAreaHeight / localHeight
);
} else {
// Logic originally in calculateZoom
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 undoCondition =
event.ctrlKey && event.key === "z" && !event.shiftKey;
const redoCondition =
event.ctrlKey && event.shiftKey && event.key === "Z";
if (
(undoCondition || redoCondition) &&
(isPresenterRef.current || hasWBAccessRef.current)
) {
event.preventDefault();
event.stopPropagation();
if (!undoRedoIntervalId) {
undoRedoIntervalId = setInterval(() => {
handleUndoRedoOnCondition(undoCondition, undo);
handleUndoRedoOnCondition(redoCondition, redo);
}, 150);
}
}
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;
}
};
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, curPageIdRef.current, 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;
setInitialZoomSet(true);
prevZoomValueRef.current = zoomValue;
}
}, CAMERA_UPDATE_DELAY);
return () => clearTimeout(timeoutId);
}, [
currentPresentationPage,
presentationAreaWidth,
presentationAreaHeight,
isPresenter,
]);
React.useEffect(() => {
const handleResize = () => {
if (!initialViewBoxWidthRef.current) {
initialViewBoxWidthRef.current = currentPresentationPageRef.current?.scaledViewBoxWidth;
}
// 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);
setCamera(zoomToApply, camera.x, camera.y);
} else {
// Viewer logic
const effectiveZoom = calculateEffectiveZoom(
initialViewBoxWidthRef.current,
currentPresentationPage.scaledViewBoxWidth
);
adjustedZoom = baseZoom * (effectiveZoom / HUNDRED_PERCENT);
const camera = tlEditorRef.current.getCamera();
setCamera(adjustedZoom, camera.x, camera.y);
}
}
}
};
const timeoutId = setTimeout(handleResize, CAMERA_UPDATE_DELAY);
return () => clearTimeout(timeoutId);
}, [presentationAreaHeight, presentationAreaWidth, curPageIdRef.current]);
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 && currentPresentationPage) {
const currentZoomRatio = currentPresentationPage.scaledViewBoxWidth / currentPresentationPage.scaledWidth;
const initialZoomRatio = initialViewBoxWidthRef.current / currentPresentationPage.scaledWidth;
const effectiveZoom = initialZoomRatio / currentZoomRatio;
let adjustedZoom = calculateZoomValue(
currentPresentationPage.scaledWidth,
currentPresentationPage.scaledHeight
) * effectiveZoom;
const adjustedXPos = currentPresentationPage.xOffset;
const adjustedYPos = currentPresentationPage.yOffset;
setCamera(
adjustedZoom,
adjustedXPos,
adjustedYPos
);
}
}, [currentPresentationPage, initialViewBoxWidthRef.current]);
React.useEffect(() => {
// Check if there are any changes to be made
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) {
tlEditor?.updateShapes(shapesToUpdate);
}
});
}, 150);
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 updatedPresences = prevOtherCursorsRef.current
.map(({ userId, user, xPercent, yPercent }) => {
const { presenter, name } = user;
const id = InstancePresenceRecordType.createId(userId);
const active = yPercent !== -1 && yPercent !== -1;
// if cursor is not active remove it from tldraw store
if (
!active ||
(hideViewersCursor &&
user.role === "VIEWER" &&
!currentUser?.presenter) ||
(!presenter && !isMultiUserActive)
) {
tlEditorRef.current?.store.remove([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:${curPageIdRef.current}`,
userId,
userName: name,
cursor,
color,
}),
lastActivityTimestamp: Date.now(),
};
return c;
})
.filter((cursor) => cursor && cursor.userId !== currentUser?.userId);
// If there are any updated presences, put them all in the store
if (updatedPresences.length) {
tlEditorRef.current?.store.put(updatedPresences);
}
}
}, [prevOtherCursorsRef.current]);
// set current tldraw page when presentation id updates
React.useEffect(() => {
if (tlEditorRef.current && curPageIdRef.current !== "0") {
const pages = [
{
meta: {},
id: `page:${curPageIdRef.current}`,
name: `Slide ${curPageIdRef.current}`,
index: `a1`,
typeName: "page",
},
];
tlEditorRef.current.store.mergeRemoteChanges(() => {
tlEditorRef.current.batch(() => {
tlEditorRef.current.store.put(pages);
// tlEditorRef.current.deletePage(tlEditorRef.current.currentPageId);
tlEditorRef.current.setCurrentPage(`page:${curPageIdRef.current}`);
tlEditorRef.current.store.put(assets);
tlEditorRef.current.createShapes(bgShape);
tlEditorRef.current.history.clear();
});
});
whiteboardToolbarAutoHide &&
toggleToolsAnimations(
"fade-in",
"fade-out",
"0s",
hasWBAccessRef.current || isPresenter
);
slideChanged.current = false;
slideNext.current = null;
}
}, [curPageIdRef.current]);
const adjustCameraOnMount = (includeViewerLogic = true) => {
const storedWidth = localStorage.getItem('initialViewBoxWidth');
if (storedWidth) {
initialViewBoxWidthRef.current = parseFloat(storedWidth);
} else {
const currentZoomLevel = currentPresentationPageRef.current.scaledWidth / currentPresentationPageRef.current.scaledViewBoxWidth;
const calculatedWidth = currentZoomLevel !== 1
? currentPresentationPageRef.current.scaledWidth / currentZoomLevel
: currentPresentationPageRef.current.scaledWidth;
initialViewBoxWidthRef.current = calculatedWidth;
localStorage.setItem('initialViewBoxWidth', calculatedWidth.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 = 1;
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 adjustedXPos = currentPresentationPageRef.current.xOffset * effectiveZoom;
const adjustedYPos = currentPresentationPageRef.current.yOffset * effectiveZoom;
setCamera(baseZoom, adjustedXPos, adjustedYPos);
}
}
}, CAMERA_UPDATE_DELAY);
};
React.useEffect(() => {
if (isMountedRef.current) {
adjustCameraOnMount(true);
}
}, [
isMountedRef.current,
presentationId,
curPageIdRef.current,
isMultiUserActive,
isPresenter,
animations,
locale,
whiteboardToolbarAutoHide,
darkTheme,
]);
React.useEffect(() => {
if (isMountedRef.current) {
adjustCameraOnMount(false);
}
}, [
isMountedRef.current,
selectedLayout,
]);
React.useEffect(() => {
setTldrawIsMounting(true);
return () => {
isMountedRef.current = false;
};
}, []);
React.useEffect(() => {
if (isMounting) {
setIsMounting(false);
/// brings presentation toolbar back
setTldrawIsMounting(false);
}
}, [
tlEditorRef?.current?.camera,
presentationAreaWidth,
presentationAreaHeight,
]);
const customTools = [NoopTool];
return (
<div
ref={whiteboardRef}
id={"whiteboard-element"}
key={`animations=-${animations}-${whiteboardToolbarAutoHide}-${language}`}
>
<Tldraw
autoFocus={false}
key={`tldrawv2-${presentationId}-${animations}`}
forceMobile={true}
hideUi={hasWBAccessRef.current || isPresenter ? false : true}
onMount={handleTldrawMount}
tools={customTools}
/>
<Styled.TldrawV2GlobalStyle
{...{
hasWBAccess: hasWBAccessRef.current,
isPresenter,
isRTL,
isMultiUserActive,
isToolbarVisible,
presentationHeight,
}}
/>
</div>
);
});
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,
svgUri: PropTypes.string,
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,
fullscreenRef: PropTypes.instanceOf(Element),
handleToggleFullScreen: PropTypes.func.isRequired,
numberOfPages: PropTypes.number,
sidebarNavigationWidth: PropTypes.number,
presentationId: PropTypes.string,
};
Whiteboard.defaultProps = {
fullscreenRef: undefined,
svgUri: undefined,
whiteboardId: undefined,
sidebarNavigationWidth: 0,
presentationId: undefined,
currentUser: {
userId: "",
},
isPresenter: false,
numberOfPages: 0,
};