715 lines
21 KiB
JavaScript
Executable File
715 lines
21 KiB
JavaScript
Executable File
import React, { PureComponent } from 'react';
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import PropTypes from 'prop-types';
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import WhiteboardOverlayContainer from '/imports/ui/components/whiteboard/whiteboard-overlay/container';
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import WhiteboardToolbarContainer from '/imports/ui/components/whiteboard/whiteboard-toolbar/container';
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import { HUNDRED_PERCENT, MAX_PERCENT } from '/imports/utils/slideCalcUtils';
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import { defineMessages, injectIntl, intlShape } from 'react-intl';
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import PresentationToolbarContainer from './presentation-toolbar/container';
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import CursorWrapperContainer from './cursor/cursor-wrapper-container/container';
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import AnnotationGroupContainer from '../whiteboard/annotation-group/container';
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import PresentationOverlayContainer from './presentation-overlay/container';
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import Slide from './slide/component';
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import { styles } from './styles.scss';
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import MediaService, { shouldEnableSwapLayout } from '../media/service';
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import PresentationCloseButton from './presentation-close-button/component';
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import DownloadPresentationButton from './download-presentation-button/component';
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import FullscreenService from '../fullscreen-button/service';
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import FullscreenButtonContainer from '../fullscreen-button/container';
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import { withDraggableContext, withDraggableConsumer } from '../media/webcam-draggable-overlay/context';
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const intlMessages = defineMessages({
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presentationLabel: {
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id: 'app.presentationUploder.title',
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description: 'presentation area element label',
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},
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changeNotification: {
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id: 'app.presentation.notificationLabel',
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description: 'label displayed in toast when presentation switches',
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},
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});
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const ALLOW_FULLSCREEN = Meteor.settings.public.app.allowFullscreen;
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class PresentationArea extends PureComponent {
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constructor() {
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super();
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this.state = {
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presentationAreaWidth: 0,
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presentationAreaHeight: 0,
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showSlide: false,
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zoom: 100,
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fitToWidth: false,
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isFullscreen: false,
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};
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this.getSvgRef = this.getSvgRef.bind(this);
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this.setFitToWidth = this.setFitToWidth.bind(this);
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this.zoomChanger = this.zoomChanger.bind(this);
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this.updateLocalPosition = this.updateLocalPosition.bind(this);
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this.panAndZoomChanger = this.panAndZoomChanger.bind(this);
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this.fitToWidthHandler = this.fitToWidthHandler.bind(this);
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this.onFullscreenChange = this.onFullscreenChange.bind(this);
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this.onResize = () => setTimeout(this.handleResize.bind(this), 0);
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}
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static getDerivedStateFromProps(props, state) {
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const { prevProps } = state;
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const stateChange = { prevProps: props };
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if (props.userIsPresenter
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&& (!prevProps || !prevProps.userIsPresenter)
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&& props.currentSlide
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&& props.slidePosition) {
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let potentialZoom = 100 / (props.slidePosition.viewBoxWidth / props.slidePosition.width);
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potentialZoom = Math.max(HUNDRED_PERCENT, Math.min(MAX_PERCENT, potentialZoom));
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stateChange.zoom = potentialZoom;
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}
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if (!prevProps) return stateChange;
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// When presenter is changed or slide changed we reset localPosition
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if (prevProps.currentSlide.id !== props.currentSlide.id
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|| prevProps.userIsPresenter !== props.userIsPresenter) {
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stateChange.localPosition = undefined;
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}
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return stateChange;
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}
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componentDidMount() {
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// adding an event listener to scale the whiteboard on 'resize' events sent by chat/userlist etc
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window.addEventListener('resize', this.onResize);
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this.getInitialPresentationSizes();
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this.refPresentationContainer.addEventListener('fullscreenchange', this.onFullscreenChange);
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const { slidePosition, webcamDraggableDispatch } = this.props;
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const { width: currWidth, height: currHeight } = slidePosition;
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if (currWidth > currHeight || currWidth === currHeight) {
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webcamDraggableDispatch({ type: 'setOrientationToLandscape' });
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}
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if (currHeight > currWidth) {
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webcamDraggableDispatch({ type: 'setOrientationToPortrait' });
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}
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}
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componentDidUpdate(prevProps) {
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const {
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currentPresentation,
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notify,
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intl,
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slidePosition,
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webcamDraggableDispatch,
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} = this.props;
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if (prevProps.currentPresentation.name !== currentPresentation.name) {
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notify(
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`${intl.formatMessage(intlMessages.changeNotification)} ${currentPresentation.name}`,
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'info',
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'presentation',
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);
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}
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const { width: prevWidth, height: prevHeight } = prevProps.slidePosition;
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const { width: currWidth, height: currHeight } = slidePosition;
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if (prevWidth !== currWidth || prevHeight !== currHeight) {
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if (currWidth > currHeight || currWidth === currHeight) {
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webcamDraggableDispatch({ type: 'setOrientationToLandscape' });
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}
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if (currHeight > currWidth) {
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webcamDraggableDispatch({ type: 'setOrientationToPortrait' });
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}
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}
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}
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componentWillUnmount() {
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window.removeEventListener('resize', this.onResize);
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this.refPresentationContainer.removeEventListener('fullscreenchange', this.onFullscreenChange);
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}
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onFullscreenChange() {
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const { isFullscreen } = this.state;
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const newIsFullscreen = FullscreenService.isFullScreen(this.refPresentationContainer);
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if (isFullscreen !== newIsFullscreen) {
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this.setState({ isFullscreen: newIsFullscreen });
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window.dispatchEvent(new Event('resize'));
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}
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}
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// returns a ref to the svg element, which is required by a WhiteboardOverlay
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// to transform screen coordinates to svg coordinate system
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getSvgRef() {
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return this.svggroup;
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}
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getToolbarHeight() {
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const { refPresentationToolbar } = this;
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let height = 0;
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if (refPresentationToolbar) {
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const { clientHeight } = refPresentationToolbar;
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height = clientHeight;
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}
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return height;
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}
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getPresentationSizesAvailable() {
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const { userIsPresenter, multiUser } = this.props;
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const { refPresentationArea, refWhiteboardArea } = this;
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const presentationSizes = {};
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if (refPresentationArea && refWhiteboardArea) {
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// By default presentation sizes are equal to the sizes of the refPresentationArea
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// direct parent of the svg wrapper
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let { clientWidth, clientHeight } = refPresentationArea;
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// if a user is a presenter - this means there is a whiteboard toolbar on the right
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// and we have to get the width/height of the refWhiteboardArea
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// (inner hidden div with absolute position)
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if (userIsPresenter || multiUser) {
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({ clientWidth, clientHeight } = refWhiteboardArea);
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}
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presentationSizes.presentationAreaHeight = clientHeight - this.getToolbarHeight();
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presentationSizes.presentationAreaWidth = clientWidth;
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}
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return presentationSizes;
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}
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getInitialPresentationSizes() {
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// determining the presentationAreaWidth and presentationAreaHeight (available
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// space for the svg) on the initial load
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const presentationSizes = this.getPresentationSizesAvailable();
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if (Object.keys(presentationSizes).length > 0) {
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// setting the state of the available space for the svg
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// and set the showSlide to true to start rendering the slide
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this.setState({
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presentationAreaHeight: presentationSizes.presentationAreaHeight,
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presentationAreaWidth: presentationSizes.presentationAreaWidth,
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showSlide: true,
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});
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}
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}
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setFitToWidth(fitToWidth) {
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this.setState({ fitToWidth });
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}
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handleResize() {
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const presentationSizes = this.getPresentationSizesAvailable();
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if (Object.keys(presentationSizes).length > 0) {
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// updating the size of the space available for the slide
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this.setState({
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presentationAreaHeight: presentationSizes.presentationAreaHeight,
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presentationAreaWidth: presentationSizes.presentationAreaWidth,
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});
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}
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}
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calculateSize(viewBoxDimensions) {
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const {
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presentationAreaHeight,
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presentationAreaWidth,
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fitToWidth,
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} = this.state;
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const {
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userIsPresenter,
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currentSlide,
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slidePosition,
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} = this.props;
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if (!currentSlide || !slidePosition) {
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return { width: 0, height: 0 };
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}
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const originalWidth = slidePosition.width;
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const originalHeight = slidePosition.height;
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const viewBoxWidth = viewBoxDimensions.width;
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const viewBoxHeight = viewBoxDimensions.height;
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let svgWidth;
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let svgHeight;
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if (!userIsPresenter) {
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svgWidth = (presentationAreaHeight * viewBoxWidth) / viewBoxHeight;
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if (presentationAreaWidth < svgWidth) {
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svgHeight = (presentationAreaHeight * presentationAreaWidth) / svgWidth;
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svgWidth = presentationAreaWidth;
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} else {
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svgHeight = presentationAreaHeight;
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}
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} else if (!fitToWidth) {
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svgWidth = (presentationAreaHeight * originalWidth) / originalHeight;
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if (presentationAreaWidth < svgWidth) {
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svgHeight = (presentationAreaHeight * presentationAreaWidth) / svgWidth;
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svgWidth = presentationAreaWidth;
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} else {
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svgHeight = presentationAreaHeight;
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}
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} else {
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svgWidth = presentationAreaWidth;
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svgHeight = (svgWidth * originalHeight) / originalWidth;
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if (svgHeight > presentationAreaHeight) svgHeight = presentationAreaHeight;
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}
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return {
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width: svgWidth,
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height: svgHeight,
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};
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}
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zoomChanger(incomingZoom) {
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const {
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zoom,
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} = this.state;
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let newZoom = incomingZoom;
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if (newZoom <= HUNDRED_PERCENT) {
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newZoom = HUNDRED_PERCENT;
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} else if (incomingZoom >= MAX_PERCENT) {
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newZoom = MAX_PERCENT;
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}
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if (newZoom !== zoom) this.setState({ zoom: newZoom });
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}
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fitToWidthHandler() {
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const {
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fitToWidth,
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} = this.state;
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this.setState({
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fitToWidth: !fitToWidth,
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zoom: HUNDRED_PERCENT,
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});
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}
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isPresentationAccessible() {
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const {
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currentSlide,
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slidePosition,
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} = this.props;
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// sometimes tomcat publishes the slide url, but the actual file is not accessible
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return currentSlide && slidePosition;
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}
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updateLocalPosition(x, y, width, height, zoom) {
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this.setState({
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localPosition: {
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x, y, width, height,
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},
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zoom,
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});
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}
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panAndZoomChanger(w, h, x, y) {
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const {
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currentSlide,
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podId,
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zoomSlide,
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} = this.props;
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zoomSlide(currentSlide.num, podId, w, h, x, y);
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}
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renderPresentationClose() {
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const { isFullscreen } = this.state;
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if (!shouldEnableSwapLayout() || isFullscreen) {
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return null;
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}
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return <PresentationCloseButton toggleSwapLayout={MediaService.toggleSwapLayout} />;
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}
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renderOverlays(slideObj, svgDimensions, viewBoxPosition, viewBoxDimensions, physicalDimensions) {
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const {
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userIsPresenter,
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multiUser,
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podId,
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currentSlide,
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slidePosition,
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} = this.props;
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const {
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zoom,
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fitToWidth,
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} = this.state;
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if (!userIsPresenter && !multiUser) {
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return null;
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}
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// retrieving the pre-calculated data from the slide object
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const {
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width,
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height,
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} = slidePosition;
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return (
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<PresentationOverlayContainer
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podId={podId}
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userIsPresenter={userIsPresenter}
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currentSlideNum={currentSlide.num}
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slide={slideObj}
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slideWidth={width}
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slideHeight={height}
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viewBoxX={viewBoxPosition.x}
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viewBoxY={viewBoxPosition.y}
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viewBoxWidth={viewBoxDimensions.width}
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viewBoxHeight={viewBoxDimensions.height}
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physicalSlideWidth={physicalDimensions.width}
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physicalSlideHeight={physicalDimensions.height}
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svgWidth={svgDimensions.width}
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svgHeight={svgDimensions.height}
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zoom={zoom}
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zoomChanger={this.zoomChanger}
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updateLocalPosition={this.updateLocalPosition}
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panAndZoomChanger={this.panAndZoomChanger}
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getSvgRef={this.getSvgRef}
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fitToWidth={fitToWidth}
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>
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<WhiteboardOverlayContainer
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getSvgRef={this.getSvgRef}
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userIsPresenter={userIsPresenter}
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whiteboardId={slideObj.id}
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slide={slideObj}
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slideWidth={width}
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slideHeight={height}
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viewBoxX={viewBoxPosition.x}
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viewBoxY={viewBoxPosition.y}
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viewBoxWidth={viewBoxDimensions.width}
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viewBoxHeight={viewBoxDimensions.height}
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physicalSlideWidth={physicalDimensions.width}
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physicalSlideHeight={physicalDimensions.height}
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zoom={zoom}
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zoomChanger={this.zoomChanger}
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/>
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</PresentationOverlayContainer>
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);
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}
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// renders the whole presentation area
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renderPresentationArea(svgDimensions, viewBoxDimensions) {
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const {
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podId,
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currentSlide,
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slidePosition,
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userIsPresenter,
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} = this.props;
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const {
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localPosition,
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} = this.state;
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if (!this.isPresentationAccessible()) {
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return null;
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}
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// retrieving the pre-calculated data from the slide object
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const {
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width,
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height,
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} = slidePosition;
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const {
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imageUri,
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} = currentSlide;
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let viewBoxPosition;
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if (userIsPresenter && localPosition) {
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viewBoxPosition = {
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x: localPosition.x,
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y: localPosition.y,
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};
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} else {
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viewBoxPosition = {
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x: slidePosition.x,
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y: slidePosition.y,
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};
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}
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const widthRatio = viewBoxDimensions.width / width;
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const heightRatio = viewBoxDimensions.height / height;
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const physicalDimensions = {
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width: (svgDimensions.width / widthRatio),
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height: (svgDimensions.height / heightRatio),
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};
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const svgViewBox = `${viewBoxPosition.x} ${viewBoxPosition.y} `
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+ `${viewBoxDimensions.width} ${Number.isNaN(viewBoxDimensions.height) ? 0 : viewBoxDimensions.height}`;
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return (
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<div
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style={{
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position: 'absolute',
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width: svgDimensions.width,
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height: svgDimensions.height,
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textAlign: 'center',
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}}
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>
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{this.renderPresentationClose()}
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{this.renderPresentationDownload()}
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{this.renderPresentationFullscreen()}
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<svg
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key={currentSlide.id}
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data-test="whiteboard"
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width={svgDimensions.width}
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height={svgDimensions.height}
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ref={(ref) => { if (ref != null) { this.svggroup = ref; } }}
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viewBox={svgViewBox}
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version="1.1"
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xmlns="http://www.w3.org/2000/svg"
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className={styles.svgStyles}
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>
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<defs>
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<clipPath id="viewBox">
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<rect x={viewBoxPosition.x} y={viewBoxPosition.y} width="100%" height="100%" fill="none" />
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</clipPath>
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</defs>
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<g clipPath="url(#viewBox)">
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<Slide
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imageUri={imageUri}
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svgWidth={width}
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svgHeight={height}
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/>
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<AnnotationGroupContainer
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{...{
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width,
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height,
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}}
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whiteboardId={currentSlide.id}
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/>
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<CursorWrapperContainer
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podId={podId}
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whiteboardId={currentSlide.id}
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widthRatio={widthRatio}
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physicalWidthRatio={svgDimensions.width / width}
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slideWidth={width}
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slideHeight={height}
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/>
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</g>
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{this.renderOverlays(
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currentSlide,
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svgDimensions,
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viewBoxPosition,
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viewBoxDimensions,
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physicalDimensions,
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)}
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</svg>
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</div>
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);
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}
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renderPresentationToolbar() {
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const {
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currentSlide,
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podId,
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} = this.props;
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const { zoom, fitToWidth, isFullscreen } = this.state;
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if (!currentSlide) {
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return null;
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}
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return (
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<PresentationToolbarContainer
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{...{
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fitToWidth,
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zoom,
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podId,
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}}
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isFullscreen={isFullscreen}
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fullscreenRef={this.refPresentationContainer}
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currentSlideNum={currentSlide.num}
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presentationId={currentSlide.presentationId}
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zoomChanger={this.zoomChanger}
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fitToWidthHandler={this.fitToWidthHandler}
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/>
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);
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}
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renderWhiteboardToolbar(svgDimensions) {
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const { currentSlide } = this.props;
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if (!this.isPresentationAccessible()) return null;
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return (
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<WhiteboardToolbarContainer
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whiteboardId={currentSlide.id}
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height={svgDimensions.height}
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/>
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);
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}
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renderPresentationDownload() {
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const { presentationIsDownloadable, downloadPresentationUri } = this.props;
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if (!presentationIsDownloadable) return null;
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const handleDownloadPresentation = () => {
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window.open(downloadPresentationUri);
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};
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return (
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<DownloadPresentationButton
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handleDownloadPresentation={handleDownloadPresentation}
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dark
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/>
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);
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}
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|
|
renderPresentationFullscreen() {
|
|
const {
|
|
intl,
|
|
userIsPresenter,
|
|
} = this.props;
|
|
const { isFullscreen } = this.state;
|
|
|
|
if (userIsPresenter || !ALLOW_FULLSCREEN) return null;
|
|
|
|
return (
|
|
<FullscreenButtonContainer
|
|
fullscreenRef={this.refPresentationContainer}
|
|
elementName={intl.formatMessage(intlMessages.presentationLabel)}
|
|
isFullscreen={isFullscreen}
|
|
dark
|
|
bottom
|
|
/>
|
|
);
|
|
}
|
|
|
|
render() {
|
|
const {
|
|
userIsPresenter,
|
|
multiUser,
|
|
slidePosition,
|
|
} = this.props;
|
|
|
|
const {
|
|
showSlide,
|
|
fitToWidth,
|
|
presentationAreaWidth,
|
|
localPosition,
|
|
} = this.state;
|
|
|
|
let viewBoxDimensions;
|
|
|
|
if (userIsPresenter && localPosition) {
|
|
viewBoxDimensions = {
|
|
width: localPosition.width,
|
|
height: localPosition.height,
|
|
};
|
|
} else if (slidePosition) {
|
|
viewBoxDimensions = {
|
|
width: slidePosition.viewBoxWidth,
|
|
height: slidePosition.viewBoxHeight,
|
|
};
|
|
} else {
|
|
viewBoxDimensions = {
|
|
width: 0,
|
|
height: 0,
|
|
};
|
|
}
|
|
|
|
const svgDimensions = this.calculateSize(viewBoxDimensions);
|
|
const svgHeight = svgDimensions.height;
|
|
const svgWidth = svgDimensions.width;
|
|
|
|
const toolbarHeight = this.getToolbarHeight();
|
|
|
|
let toolbarWidth = 0;
|
|
if (this.refWhiteboardArea) {
|
|
if (svgWidth === presentationAreaWidth
|
|
|| presentationAreaWidth <= 400
|
|
|| fitToWidth === true) {
|
|
toolbarWidth = '100%';
|
|
} else if (svgWidth <= 400
|
|
&& presentationAreaWidth > 400) {
|
|
toolbarWidth = '400px';
|
|
} else {
|
|
toolbarWidth = svgWidth;
|
|
}
|
|
}
|
|
|
|
return (
|
|
<div
|
|
ref={(ref) => { this.refPresentationContainer = ref; }}
|
|
className={styles.presentationContainer}
|
|
>
|
|
<div
|
|
ref={(ref) => { this.refPresentationArea = ref; }}
|
|
className={styles.presentationArea}
|
|
>
|
|
<div
|
|
ref={(ref) => { this.refWhiteboardArea = ref; }}
|
|
className={styles.whiteboardSizeAvailable}
|
|
/>
|
|
<div
|
|
className={styles.svgContainer}
|
|
style={{
|
|
height: svgHeight + toolbarHeight,
|
|
}}
|
|
>
|
|
{showSlide
|
|
? this.renderPresentationArea(svgDimensions, viewBoxDimensions)
|
|
: null}
|
|
{showSlide && (userIsPresenter || multiUser)
|
|
? this.renderWhiteboardToolbar(svgDimensions)
|
|
: null}
|
|
{showSlide && userIsPresenter
|
|
? (
|
|
<div
|
|
className={styles.presentationToolbar}
|
|
ref={(ref) => { this.refPresentationToolbar = ref; }}
|
|
style={
|
|
{
|
|
width: toolbarWidth,
|
|
}
|
|
}
|
|
>
|
|
{this.renderPresentationToolbar()}
|
|
</div>
|
|
)
|
|
: null}
|
|
</div>
|
|
</div>
|
|
</div>
|
|
);
|
|
}
|
|
}
|
|
|
|
export default injectIntl(withDraggableConsumer(PresentationArea));
|
|
|
|
PresentationArea.propTypes = {
|
|
intl: intlShape.isRequired,
|
|
podId: PropTypes.string.isRequired,
|
|
// Defines a boolean value to detect whether a current user is a presenter
|
|
userIsPresenter: PropTypes.bool.isRequired,
|
|
currentSlide: PropTypes.shape({
|
|
presentationId: PropTypes.string.isRequired,
|
|
current: PropTypes.bool.isRequired,
|
|
num: PropTypes.number.isRequired,
|
|
id: PropTypes.string.isRequired,
|
|
imageUri: PropTypes.string.isRequired,
|
|
}),
|
|
slidePosition: PropTypes.shape({
|
|
x: PropTypes.number.isRequired,
|
|
y: PropTypes.number.isRequired,
|
|
height: PropTypes.number.isRequired,
|
|
width: PropTypes.number.isRequired,
|
|
viewBoxWidth: PropTypes.number.isRequired,
|
|
viewBoxHeight: PropTypes.number.isRequired,
|
|
}),
|
|
// current multi-user status
|
|
multiUser: PropTypes.bool.isRequired,
|
|
};
|
|
|
|
PresentationArea.defaultProps = {
|
|
currentSlide: undefined,
|
|
slidePosition: undefined,
|
|
};
|