392 lines
15 KiB
JavaScript
392 lines
15 KiB
JavaScript
import * as React from "react";
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import _ from "lodash";
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import Cursors from "./cursors/container";
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import { TldrawApp, Tldraw } from "@tldraw/tldraw";
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import logger from '/imports/startup/client/logger';
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import {
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ColorStyle,
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DashStyle,
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SizeStyle,
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TDDocument,
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TDShapeType,
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} from "@tldraw/tldraw";
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import { Renderer, Utils } from "@tldraw/core";
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function usePrevious(value) {
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const ref = React.useRef();
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React.useEffect(() => {
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ref.current = value;
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}, [value]);
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return ref.current;
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}
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const findRemoved = (A, B) => {
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return A.filter((a) => {
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return !B.includes(a);
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});
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};
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export default function Whiteboard(props) {
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const {
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isPresenter,
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removeShapes,
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initDefaultPages,
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meetingId,
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persistShape,
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persistAsset,
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shapes,
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assets,
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currentUser,
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curPres,
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whiteboardId,
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podId,
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zoomSlide,
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skipToSlide,
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slidePosition,
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curPageId,
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svgUri,
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presentationBounds,
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isViewersCursorLocked,
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setIsZoomed,
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zoomChanger,
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isZoomed,
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} = props;
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const { pages, pageStates } = initDefaultPages(curPres?.pages.length || 1);
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const rDocument = React.useRef({
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name: "test",
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version: TldrawApp.version,
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id: whiteboardId,
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pages,
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pageStates,
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bindings: {},
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assets,
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});
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//const [doc, setDoc] = React.useState(rDocument.current);
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const [_assets, setAssets] = React.useState(assets);
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const [command, setCommand] = React.useState("");
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const [wbAccess, setWBAccess] = React.useState(props?.hasMultiUserAccess(props.whiteboardId, props.currentUser.userId));
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const [selectedIds, setSelectedIds] = React.useState([]);
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const [tldrawAPI, setTLDrawAPI] = React.useState(null);
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const [cameraFitSlide, setCameraFitSlide] = React.useState({point: [0, 0], zoom: 0});
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const prevShapes = usePrevious(shapes);
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const prevSlidePosition = usePrevious(slidePosition);
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const prevPageId = usePrevious(curPageId);
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const calculateCameraFitSlide = () => {
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let zoom =
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Math.min(
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(presentationBounds.width) / slidePosition.width,
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(presentationBounds.height) / slidePosition.height
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);
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zoom = Utils.clamp(zoom, 0.1, 5);
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let point = [0, 0];
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if ((presentationBounds.width / presentationBounds.height) >
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(slidePosition.width / slidePosition.height))
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{
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point[0] = (presentationBounds.width - (slidePosition.width * zoom)) / 2 / zoom
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} else {
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point[1] = (presentationBounds.height - (slidePosition.height * zoom)) / 2 / zoom
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}
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isPresenter && zoomChanger(zoom);
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return {point, zoom}
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}
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const doc = React.useMemo(() => {
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const currentDoc = rDocument.current;
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let next = { ...currentDoc };
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let pageBindings = null;
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let history = null;
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let stack = null;
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let changed = false;
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if (next.pageStates[curPageId] && !_.isEqual(prevShapes, shapes)) {
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// mergeDocument loses bindings and history, save it
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pageBindings = tldrawAPI?.getPage(curPageId)?.bindings;
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history = tldrawAPI?.history
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stack = tldrawAPI?.stack
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next.pages[curPageId].shapes = shapes;
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changed = true;
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}
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if (next.pages[curPageId] && !next.pages[curPageId].shapes["slide-background-shape"]) {
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next.assets[`slide-background-asset-${curPageId}`] = {
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id: `slide-background-asset-${curPageId}`,
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size: [slidePosition?.width || 0, slidePosition?.height || 0],
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src: svgUri,
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type: "image",
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};
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next.pages[curPageId].shapes["slide-background-shape"] = {
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assetId: `slide-background-asset-${curPageId}`,
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childIndex: 0.5,
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id: "slide-background-shape",
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name: "Image",
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type: TDShapeType.Image,
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parentId: `${curPageId}`,
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point: [0, 0],
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isLocked: true,
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size: [slidePosition?.width || 0, slidePosition?.height || 0],
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style: {
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dash: DashStyle.Draw,
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size: SizeStyle.Medium,
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color: ColorStyle.Blue,
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},
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};
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changed = true;
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}
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if (changed) {
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if (pageBindings) next.pages[curPageId].bindings = pageBindings;
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tldrawAPI?.mergeDocument(next);
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if (tldrawAPI && history) tldrawAPI.history = history;
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if (tldrawAPI && stack) tldrawAPI.stack = stack;
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}
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// move poll result text to bottom right
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if (next.pages[curPageId]) {
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const pollResults = Object.entries(next.pages[curPageId].shapes)
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.filter(([id, shape]) => shape.name.includes("poll-result"))
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for (const [id, shape] of pollResults) {
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if (_.isEqual(shape.point, [0, 0])) {
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const shapeBounds = tldrawAPI?.getShapeBounds(id);
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if (shapeBounds) {
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shape.point = [
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slidePosition.width - shapeBounds.width,
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slidePosition.height - shapeBounds.height
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]
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shape.size = [shapeBounds.width, shapeBounds.height]
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isPresenter && persistShape(shape, whiteboardId);
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}
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}
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};
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}
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return currentDoc;
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}, [assets, shapes, tldrawAPI, curPageId, slidePosition]);
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// when presentationBounds change, update tldraw camera
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// to fit slide on center if zoomed out
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React.useEffect(() => {
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if (curPageId && slidePosition) {
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const camera = calculateCameraFitSlide();
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setCameraFitSlide(camera);
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if (!isZoomed) {
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tldrawAPI?.setCamera(camera.point, camera.zoom);
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}
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}
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}, [presentationBounds, curPageId]);
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// change tldraw page when presentation page changes
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React.useEffect(() => {
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if (tldrawAPI && curPageId) {
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const previousPageZoom = tldrawAPI.getPageState()?.camera?.zoom;
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tldrawAPI.changePage(curPageId);
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//change zoom of the new page to follow the previous one
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if (!isZoomed && cameraFitSlide.zoom !== 0) {
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tldrawAPI?.setCamera(cameraFitSlide.point, cameraFitSlide.zoom, "zoomed");
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} else {
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previousPageZoom &&
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slidePosition &&
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tldrawAPI.setCamera([slidePosition.xCamera, slidePosition.yCamera], previousPageZoom, "zoomed");
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}
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}
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}, [curPageId]);
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// change tldraw camera when slidePosition changes
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React.useEffect(() => {
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if (tldrawAPI && !isPresenter && curPageId && slidePosition) {
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if (slidePosition.zoom === 0 && slidePosition.xCamera === 0 && slidePosition.yCamera === 0) {
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tldrawAPI?.setCamera(cameraFitSlide.point, cameraFitSlide.zoom);
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setIsZoomed(false);
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} else {
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tldrawAPI?.setCamera([slidePosition.xCamera, slidePosition.yCamera], slidePosition.zoom);
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setIsZoomed(true);
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}
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}
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}, [curPageId, slidePosition]);
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const hasWBAccess = props?.hasMultiUserAccess(props.whiteboardId, props.currentUser.userId);
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return (
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<>
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<Cursors
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tldrawAPI={tldrawAPI}
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currentUser={currentUser}
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whiteboardId={whiteboardId}
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isViewersCursorLocked={isViewersCursorLocked}
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>
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<Tldraw
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key={`wb-${!hasWBAccess && !isPresenter}`}
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document={doc}
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// disable the ability to drag and drop files onto the whiteboard
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// until we handle saving of assets in akka.
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disableAssets={true}
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onMount={(app) => {
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if (!hasWBAccess && !isPresenter) app.onPan = () => {};
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setTLDrawAPI(app);
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props.setTldrawAPI(app);
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if (curPageId) {
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app.changePage(curPageId);
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if (slidePosition.zoom === 0) {
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// first load, center the view to fit slide
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const cameraFitSlide = calculateCameraFitSlide();
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app.setCamera(cameraFitSlide.point, cameraFitSlide.zoom);
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setCameraFitSlide(cameraFitSlide);
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} else {
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app.setCamera([slidePosition.xCamera, slidePosition.yCamera], slidePosition.zoom);
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setIsZoomed(true);
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}
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}
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}}
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showPages={false}
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showZoom={false}
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showUI={curPres ? (isPresenter || hasWBAccess) : true}
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showMenu={curPres ? false : true}
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showMultiplayerMenu={false}
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readOnly={!isPresenter && !hasWBAccess}
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onUndo={(e, s) => {
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e?.selectedIds?.map(id => {
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persistShape(e.getShape(id), whiteboardId);
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})
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const pageShapes = e.state.document.pages[e.getPage()?.id]?.shapes;
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let shapesIdsToRemove = findRemoved(Object.keys(shapes), Object.keys(pageShapes))
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removeShapes(shapesIdsToRemove, whiteboardId)
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}}
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onRedo={(e, s) => {
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e?.selectedIds?.map(id => {
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persistShape(e.getShape(id), whiteboardId);
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});
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const pageShapes = e.state.document.pages[e.getPage()?.id]?.shapes;
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let shapesIdsToRemove = findRemoved(Object.keys(shapes), Object.keys(pageShapes))
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removeShapes(shapesIdsToRemove, whiteboardId)
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}}
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onChangePage={(app, s, b, a) => {
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if (app.getPage()?.id !== curPageId) {
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skipToSlide(Number.parseInt(app.getPage()?.id), podId)
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}
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}}
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onCommand={(e, s, g) => {
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if (s.includes("session:complete:DrawSession")) {
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Object.entries(e.state.document.pages[e.getPage()?.id]?.shapes)
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.filter(([k, s]) => s?.type === 'draw')
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.forEach(([k, s]) => {
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if (!e.prevShapes[k] && !k.includes('slide-background')) {
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const shapeBounds = e.getShapeBounds(k);
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s.size = [shapeBounds.width, shapeBounds.height];
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persistShape(s, whiteboardId);
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}
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});
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}
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if (s.includes("style")
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|| s?.includes("session:complete:ArrowSession")) {
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e.selectedIds.forEach(id => {
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const shape = e.getShape(id);
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const shapeBounds = e.getShapeBounds(id);
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shape.size = [shapeBounds.width, shapeBounds.height];
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persistShape(shape, whiteboardId);
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});
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}
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if (s.includes('move_to_page')) {
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const movedShapes = e.selectedIds.map(id => {
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return e.getShape(id);
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});
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//remove shapes on origin page
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removeShapes(e.selectedIds, whiteboardId);
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//persist shapes for destination page
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const newWhiteboardId = curPres.pages.find(page => page.num === Number.parseInt(e.getPage()?.id)).id;
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movedShapes.forEach(s => {
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persistShape(s, newWhiteboardId);
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});
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return;
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}
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const conditions = [
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"session:complete:TransformSingleSession", "session:complete:TranslateSession",
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"session:complete:RotateSession", "session:complete:HandleSession",
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"updated_shapes", "duplicate", "stretch", "align", "move",
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"create", "flip", "toggle", "group", "translate"
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]
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if (conditions.some(el => s?.includes(el))) {
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e.selectedIds.forEach(id => {
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const shape = e.getShape(id);
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const shapeBounds = e.getShapeBounds(id);
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shape.size = [shapeBounds.width, shapeBounds.height];
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persistShape(shape, whiteboardId);
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//checks to find any bindings assosiated with the selected shapes.
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//If any, they need to be updated as well.
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const pageBindings = e.state.document.pages[e.getPage()?.id]?.bindings;
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const boundShapes = [];
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if (pageBindings) {
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Object.entries(pageBindings).map(([k,b]) => {
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if (b.toId.includes(id)) {
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boundShapes.push(e.state.document.pages[e.getPage()?.id]?.shapes[b.fromId])
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}
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})
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}
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//persist shape(s) that was updated by the client and any shapes bound to it.
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boundShapes.forEach(bs => {
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const shapeBounds = e.getShapeBounds(bs.id);
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bs.size = [shapeBounds.width, shapeBounds.height];
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persistShape(bs, whiteboardId)
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})
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const children = e.getShape(id).children
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//also persist children of the selected shape (grouped shapes)
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children && children.forEach(c => {
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const shape = e.getShape(c);
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const shapeBounds = e.getShapeBounds(c);
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shape.size = [shapeBounds.width, shapeBounds.height];
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persistShape(shape, whiteboardId)
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})
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});
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}
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if (s?.includes("session:complete:EraseSession") || s?.includes("delete")) {
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const pageShapes = e.state.document.pages[e.getPage()?.id]?.shapes;
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let shapesIdsToRemove = findRemoved(Object.keys(shapes), Object.keys(pageShapes))
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removeShapes(shapesIdsToRemove, whiteboardId)
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}
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}}
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onPatch={(s, reason) => {
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if (reason && isPresenter && (reason.includes("zoomed") || reason.includes("panned"))) {
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const camera = tldrawAPI.getPageState().camera;
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//don't allow zoom out more than fit
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if (camera.zoom <= cameraFitSlide.zoom) {
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tldrawAPI?.setCamera(cameraFitSlide.point, cameraFitSlide.zoom);
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setIsZoomed(false);
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zoomSlide(parseInt(curPageId), podId, 0, 0, 0);
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} else {
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zoomSlide(parseInt(curPageId), podId, camera.zoom, camera.point[0], camera.point[1]);
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setIsZoomed(true);
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}
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}
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//don't allow non-presenters to pan&zoom
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if (slidePosition && reason && !isPresenter && (reason.includes("zoomed") || reason.includes("panned"))) {
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if (slidePosition.zoom === 0 && slidePosition.xCamera === 0 && slidePosition.yCamera === 0) {
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tldrawAPI?.setCamera(cameraFitSlide.point, cameraFitSlide.zoom);
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setIsZoomed(false);
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} else {
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tldrawAPI?.setCamera([slidePosition.xCamera, slidePosition.yCamera], slidePosition.zoom);
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setIsZoomed(true);
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}
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}
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}}
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/>
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</Cursors>
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</>
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);
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}
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