bigbluebutton-Github/bigbluebutton-html5/imports/ui/components/presentation/component.jsx
2022-01-17 13:51:14 +00:00

942 lines
28 KiB
JavaScript
Executable File

import React, { PureComponent } from 'react';
import PropTypes from 'prop-types';
import WhiteboardOverlayContainer from '/imports/ui/components/whiteboard/whiteboard-overlay/container';
import WhiteboardToolbarContainer from '/imports/ui/components/whiteboard/whiteboard-toolbar/container';
import { HUNDRED_PERCENT, MAX_PERCENT } from '/imports/utils/slideCalcUtils';
import { defineMessages, injectIntl } from 'react-intl';
import { toast } from 'react-toastify';
import PresentationToolbarContainer from './presentation-toolbar/container';
import PresentationPlaceholder from './presentation-placeholder/component';
import CursorWrapperContainer from './cursor/cursor-wrapper-container/container';
import AnnotationGroupContainer from '../whiteboard/annotation-group/container';
import PresentationOverlayContainer from './presentation-overlay/container';
import Slide from './slide/component';
import { styles } from './styles.scss';
import toastStyles from '/imports/ui/components/toast/styles';
import MediaService, { shouldEnableSwapLayout } from '../media/service';
import PresentationCloseButton from './presentation-close-button/component';
import DownloadPresentationButton from './download-presentation-button/component';
import FullscreenService from '../fullscreen-button/service';
import FullscreenButtonContainer from '../fullscreen-button/container';
import Icon from '/imports/ui/components/icon/component';
import PollingContainer from '/imports/ui/components/polling/container';
import { ACTIONS, LAYOUT_TYPE } from '../layout/enums';
import DEFAULT_VALUES from '../layout/defaultValues';
import browserInfo from '/imports/utils/browserInfo';
const intlMessages = defineMessages({
presentationLabel: {
id: 'app.presentationUploder.title',
description: 'presentation area element label',
},
changeNotification: {
id: 'app.presentation.notificationLabel',
description: 'label displayed in toast when presentation switches',
},
downloadLabel: {
id: 'app.presentation.downloadLabel',
description: 'label for downloadable presentations',
},
slideContentStart: {
id: 'app.presentation.startSlideContent',
description: 'Indicate the slide content start',
},
slideContentEnd: {
id: 'app.presentation.endSlideContent',
description: 'Indicate the slide content end',
},
noSlideContent: {
id: 'app.presentation.emptySlideContent',
description: 'No content available for slide',
},
});
const ALLOW_FULLSCREEN = Meteor.settings.public.app.allowFullscreen;
const OLD_MINIMIZE_BUTTON_ENABLED = Meteor.settings.public.presentation.oldMinimizeButton;
const { isSafari } = browserInfo;
const FULLSCREEN_CHANGE_EVENT = isSafari ? 'webkitfullscreenchange' : 'fullscreenchange';
class Presentation extends PureComponent {
constructor() {
super();
this.state = {
presentationWidth: 0,
presentationHeight: 0,
showSlide: false,
zoom: 100,
fitToWidth: false,
isFullscreen: false,
};
this.currentPresentationToastId = null;
this.getSvgRef = this.getSvgRef.bind(this);
this.setFitToWidth = this.setFitToWidth.bind(this);
this.zoomChanger = this.zoomChanger.bind(this);
this.updateLocalPosition = this.updateLocalPosition.bind(this);
this.panAndZoomChanger = this.panAndZoomChanger.bind(this);
this.fitToWidthHandler = this.fitToWidthHandler.bind(this);
this.onFullscreenChange = this.onFullscreenChange.bind(this);
this.getPresentationSizesAvailable = this.getPresentationSizesAvailable.bind(this);
this.handleResize = this.handleResize.bind(this);
this.onResize = () => setTimeout(this.handleResize.bind(this), 0);
this.renderCurrentPresentationToast = this.renderCurrentPresentationToast.bind(this);
this.setPresentationRef = this.setPresentationRef.bind(this);
}
static getDerivedStateFromProps(props, state) {
const { prevProps } = state;
const stateChange = { prevProps: props };
if (props.userIsPresenter
&& (!prevProps || !prevProps.userIsPresenter)
&& props.currentSlide
&& props.slidePosition) {
let potentialZoom = 100 / (props.slidePosition.viewBoxWidth / props.slidePosition.width);
potentialZoom = Math.max(HUNDRED_PERCENT, Math.min(MAX_PERCENT, potentialZoom));
stateChange.zoom = potentialZoom;
}
if (!prevProps) return stateChange;
// When presenter is changed or slide changed we reset localPosition
if (prevProps.currentSlide?.id !== props.currentSlide?.id
|| prevProps.userIsPresenter !== props.userIsPresenter) {
stateChange.localPosition = undefined;
}
return stateChange;
}
componentDidMount() {
this.getInitialPresentationSizes();
this.refPresentationContainer.addEventListener(FULLSCREEN_CHANGE_EVENT, this.onFullscreenChange);
window.addEventListener('resize', this.onResize, false);
const {
currentSlide, slidePosition, layoutContextDispatch,
} = this.props;
if (currentSlide) {
layoutContextDispatch({
type: ACTIONS.SET_PRESENTATION_NUM_CURRENT_SLIDE,
value: currentSlide.num,
});
layoutContextDispatch({
type: ACTIONS.SET_PRESENTATION_CURRENT_SLIDE_SIZE,
value: {
width: slidePosition.width,
height: slidePosition.height,
},
});
}
}
componentDidUpdate(prevProps) {
const {
currentPresentation,
slidePosition,
layoutSwapped,
currentSlide,
publishedPoll,
isViewer,
toggleSwapLayout,
restoreOnUpdate,
layoutContextDispatch,
userIsPresenter,
presentationBounds,
numCameras,
} = this.props;
const {
numCameras: prevNumCameras,
presentationBounds: prevPresentationBounds,
} = prevProps;
if (numCameras !== prevNumCameras) {
this.onResize();
}
if (prevProps?.slidePosition && slidePosition) {
const { width: prevWidth, height: prevHeight } = prevProps.slidePosition;
const { width: currWidth, height: currHeight } = slidePosition;
if (prevWidth !== currWidth || prevHeight !== currHeight) {
layoutContextDispatch({
type: ACTIONS.SET_PRESENTATION_CURRENT_SLIDE_SIZE,
value: {
width: currWidth,
height: currHeight,
},
});
}
const downloadableOn = !prevProps.currentPresentation.downloadable
&& currentPresentation.downloadable;
const shouldCloseToast = !(currentPresentation.downloadable && !userIsPresenter);
if (
prevProps.currentPresentation.name !== currentPresentation.name
|| (downloadableOn && !userIsPresenter)
) {
if (this.currentPresentationToastId) {
toast.update(this.currentPresentationToastId, {
autoClose: shouldCloseToast,
render: this.renderCurrentPresentationToast(),
});
} else {
this.currentPresentationToastId = toast(this.renderCurrentPresentationToast(), {
onClose: () => { this.currentPresentationToastId = null; },
autoClose: shouldCloseToast,
className: toastStyles.actionToast,
});
}
}
const downloadableOff = prevProps.currentPresentation.downloadable
&& !currentPresentation.downloadable;
if (this.currentPresentationToastId && downloadableOff) {
toast.update(this.currentPresentationToastId, {
autoClose: true,
render: this.renderCurrentPresentationToast(),
});
}
if (layoutSwapped && restoreOnUpdate && isViewer && currentSlide) {
const slideChanged = currentSlide.id !== prevProps.currentSlide.id;
const positionChanged = slidePosition
.viewBoxHeight !== prevProps.slidePosition.viewBoxHeight
|| slidePosition.viewBoxWidth !== prevProps.slidePosition.viewBoxWidth;
const pollPublished = publishedPoll && !prevProps.publishedPoll;
if (slideChanged || positionChanged || pollPublished) {
toggleSwapLayout(layoutContextDispatch);
}
}
if (presentationBounds !== prevPresentationBounds) this.onResize();
}
}
componentWillUnmount() {
const { fullscreenContext, layoutContextDispatch } = this.props;
window.removeEventListener('resize', this.onResize, false);
this.refPresentationContainer.removeEventListener(FULLSCREEN_CHANGE_EVENT, this.onFullscreenChange);
if (fullscreenContext) {
layoutContextDispatch({
type: ACTIONS.SET_FULLSCREEN_ELEMENT,
value: {
element: '',
group: '',
},
});
}
}
handleResize() {
const presentationSizes = this.getPresentationSizesAvailable();
if (Object.keys(presentationSizes).length > 0) {
// updating the size of the space available for the slide
this.setState({
presentationHeight: presentationSizes.presentationHeight,
presentationWidth: presentationSizes.presentationWidth,
});
}
}
onFullscreenChange() {
const { isFullscreen } = this.state;
const newIsFullscreen = FullscreenService.isFullScreen(this.refPresentationContainer);
if (isFullscreen !== newIsFullscreen) {
this.setState({ isFullscreen: newIsFullscreen });
}
}
setPresentationRef(ref) {
this.refPresentationContainer = ref;
}
// returns a ref to the svg element, which is required by a WhiteboardOverlay
// to transform screen coordinates to svg coordinate system
getSvgRef() {
return this.svggroup;
}
getToolbarHeight() {
const { refPresentationToolbar } = this;
let height = 0;
if (refPresentationToolbar) {
const { clientHeight } = refPresentationToolbar;
height = clientHeight;
}
return height;
}
getPresentationSizesAvailable() {
const {
presentationBounds,
presentationAreaSize: newPresentationAreaSize,
} = this.props;
const presentationSizes = {
presentationWidth: 0,
presentationHeight: 0,
};
if (newPresentationAreaSize) {
presentationSizes.presentationWidth = newPresentationAreaSize.presentationAreaWidth;
presentationSizes.presentationHeight = newPresentationAreaSize
.presentationAreaHeight - (this.getToolbarHeight() || 0);
return presentationSizes;
}
presentationSizes.presentationWidth = presentationBounds.width;
presentationSizes.presentationHeight = presentationBounds.height;
return presentationSizes;
}
getInitialPresentationSizes() {
// determining the presentationWidth and presentationHeight (available
// space for the svg) on the initial load
const presentationSizes = this.getPresentationSizesAvailable();
if (Object.keys(presentationSizes).length > 0) {
// setting the state of the available space for the svg
// and set the showSlide to true to start rendering the slide
this.setState({
presentationHeight: presentationSizes.presentationHeight,
presentationWidth: presentationSizes.presentationWidth,
showSlide: true,
});
}
}
setFitToWidth(fitToWidth) {
this.setState({ fitToWidth });
}
calculateSize(viewBoxDimensions) {
const {
presentationHeight,
presentationWidth,
fitToWidth,
} = this.state;
const {
userIsPresenter,
currentSlide,
slidePosition,
} = this.props;
if (!currentSlide || !slidePosition) {
return { width: 0, height: 0 };
}
const originalWidth = slidePosition.width;
const originalHeight = slidePosition.height;
const viewBoxWidth = viewBoxDimensions.width;
const viewBoxHeight = viewBoxDimensions.height;
let svgWidth;
let svgHeight;
if (!userIsPresenter) {
svgWidth = (presentationHeight * viewBoxWidth) / viewBoxHeight;
if (presentationWidth < svgWidth) {
svgHeight = (presentationHeight * presentationWidth) / svgWidth;
svgWidth = presentationWidth;
} else {
svgHeight = presentationHeight;
}
} else if (!fitToWidth) {
svgWidth = (presentationHeight * originalWidth) / originalHeight;
if (presentationWidth < svgWidth) {
svgHeight = (presentationHeight * presentationWidth) / svgWidth;
svgWidth = presentationWidth;
} else {
svgHeight = presentationHeight;
}
} else {
svgWidth = presentationWidth;
svgHeight = (svgWidth * originalHeight) / originalWidth;
if (svgHeight > presentationHeight) svgHeight = presentationHeight;
}
if (typeof svgHeight !== 'number' || typeof svgWidth !== 'number') {
return { width: 0, height: 0 };
}
return {
width: svgWidth,
height: svgHeight,
};
}
zoomChanger(incomingZoom) {
const {
zoom,
} = this.state;
let newZoom = incomingZoom;
if (newZoom <= HUNDRED_PERCENT) {
newZoom = HUNDRED_PERCENT;
} else if (incomingZoom >= MAX_PERCENT) {
newZoom = MAX_PERCENT;
}
if (newZoom !== zoom) this.setState({ zoom: newZoom });
}
fitToWidthHandler() {
const {
fitToWidth,
} = this.state;
this.setState({
fitToWidth: !fitToWidth,
zoom: HUNDRED_PERCENT,
});
}
isPresentationAccessible() {
const {
currentSlide,
slidePosition,
} = this.props;
// sometimes tomcat publishes the slide url, but the actual file is not accessible
return currentSlide && slidePosition;
}
updateLocalPosition(x, y, width, height, zoom) {
this.setState({
localPosition: {
x, y, width, height,
},
zoom,
});
}
panAndZoomChanger(w, h, x, y) {
const {
currentSlide,
podId,
zoomSlide,
} = this.props;
zoomSlide(currentSlide.num, podId, w, h, x, y);
}
renderPresentationClose() {
const { isFullscreen } = this.state;
const {
layoutType,
fullscreenContext,
layoutContextDispatch,
isIphone,
} = this.props;
if (!OLD_MINIMIZE_BUTTON_ENABLED
|| !shouldEnableSwapLayout()
|| isFullscreen
|| fullscreenContext
|| layoutType === LAYOUT_TYPE.PRESENTATION_FOCUS) {
return null;
}
return (
<PresentationCloseButton
toggleSwapLayout={MediaService.toggleSwapLayout}
layoutContextDispatch={layoutContextDispatch}
isIphone={isIphone}
/>
);
}
renderOverlays(slideObj, svgDimensions, viewBoxPosition, viewBoxDimensions, physicalDimensions) {
const {
userIsPresenter,
multiUser,
podId,
currentSlide,
slidePosition,
} = this.props;
const {
zoom,
fitToWidth,
} = this.state;
if (!userIsPresenter && !multiUser) {
return null;
}
// retrieving the pre-calculated data from the slide object
const {
width,
height,
} = slidePosition;
return (
<PresentationOverlayContainer
podId={podId}
userIsPresenter={userIsPresenter}
currentSlideNum={currentSlide.num}
slide={slideObj}
slideWidth={width}
slideHeight={height}
viewBoxX={viewBoxPosition.x}
viewBoxY={viewBoxPosition.y}
viewBoxWidth={viewBoxDimensions.width}
viewBoxHeight={viewBoxDimensions.height}
physicalSlideWidth={physicalDimensions.width}
physicalSlideHeight={physicalDimensions.height}
svgWidth={svgDimensions.width}
svgHeight={svgDimensions.height}
zoom={zoom}
zoomChanger={this.zoomChanger}
updateLocalPosition={this.updateLocalPosition}
panAndZoomChanger={this.panAndZoomChanger}
getSvgRef={this.getSvgRef}
fitToWidth={fitToWidth}
>
<WhiteboardOverlayContainer
getSvgRef={this.getSvgRef}
userIsPresenter={userIsPresenter}
whiteboardId={slideObj.id}
slide={slideObj}
slideWidth={width}
slideHeight={height}
viewBoxX={viewBoxPosition.x}
viewBoxY={viewBoxPosition.y}
viewBoxWidth={viewBoxDimensions.width}
viewBoxHeight={viewBoxDimensions.height}
physicalSlideWidth={physicalDimensions.width}
physicalSlideHeight={physicalDimensions.height}
zoom={zoom}
zoomChanger={this.zoomChanger}
/>
</PresentationOverlayContainer>
);
}
// renders the whole presentation area
renderPresentation(svgDimensions, viewBoxDimensions) {
const {
intl,
podId,
currentSlide,
slidePosition,
userIsPresenter,
layoutSwapped,
} = this.props;
const {
localPosition,
} = this.state;
if (!this.isPresentationAccessible()) {
return null;
}
// retrieving the pre-calculated data from the slide object
const {
width,
height,
} = slidePosition;
const {
imageUri,
content,
} = currentSlide;
let viewBoxPosition;
if (userIsPresenter && localPosition) {
viewBoxPosition = {
x: localPosition.x,
y: localPosition.y,
};
} else {
viewBoxPosition = {
x: slidePosition.x,
y: slidePosition.y,
};
}
const widthRatio = viewBoxDimensions.width / width;
const heightRatio = viewBoxDimensions.height / height;
const physicalDimensions = {
width: (svgDimensions.width / widthRatio),
height: (svgDimensions.height / heightRatio),
};
const svgViewBox = `${viewBoxPosition.x} ${viewBoxPosition.y} `
+ `${viewBoxDimensions.width} ${Number.isNaN(viewBoxDimensions.height) ? 0 : viewBoxDimensions.height}`;
const slideContent = content ? `${intl.formatMessage(intlMessages.slideContentStart)}
${content}
${intl.formatMessage(intlMessages.slideContentEnd)}` : intl.formatMessage(intlMessages.noSlideContent);
return (
<div
style={{
position: 'absolute',
width: svgDimensions.width < 0 ? 0 : svgDimensions.width,
height: svgDimensions.height < 0 ? 0 : svgDimensions.height,
textAlign: 'center',
display: layoutSwapped ? 'none' : 'block',
}}
>
<span id="currentSlideText" className={styles.visuallyHidden}>{slideContent}</span>
{this.renderPresentationClose()}
{this.renderPresentationDownload()}
{this.renderPresentationFullscreen()}
<svg
key={currentSlide.id}
data-test="whiteboard"
width={svgDimensions.width < 0 ? 0 : svgDimensions.width}
height={svgDimensions.height < 0 ? 0 : svgDimensions.height}
ref={(ref) => { if (ref != null) { this.svggroup = ref; } }}
viewBox={svgViewBox}
version="1.1"
xmlns="http://www.w3.org/2000/svg"
className={styles.svgStyles}
>
<defs>
<clipPath id="viewBox">
<rect x={viewBoxPosition.x} y={viewBoxPosition.y} width="100%" height="100%" fill="none" />
</clipPath>
</defs>
<g clipPath="url(#viewBox)">
<Slide
imageUri={imageUri}
svgWidth={width}
svgHeight={height}
/>
<AnnotationGroupContainer
{...{
width,
height,
}}
published
whiteboardId={currentSlide.id}
/>
<AnnotationGroupContainer
{...{
width,
height,
}}
published={false}
whiteboardId={currentSlide.id}
/>
<CursorWrapperContainer
podId={podId}
whiteboardId={currentSlide.id}
widthRatio={widthRatio}
physicalWidthRatio={svgDimensions.width / width}
slideWidth={width}
slideHeight={height}
/>
</g>
{this.renderOverlays(
currentSlide,
svgDimensions,
viewBoxPosition,
viewBoxDimensions,
physicalDimensions,
)}
</svg>
</div>
);
}
renderPresentationToolbar(svgWidth) {
const {
currentSlide,
podId,
isMobile,
layoutType,
numCameras,
fullscreenElementId,
fullscreenContext,
layoutContextDispatch,
} = this.props;
const { zoom, fitToWidth } = this.state;
if (!currentSlide) return null;
const { presentationToolbarMinWidth } = DEFAULT_VALUES;
const toolbarWidth = ((this.refWhiteboardArea && svgWidth > presentationToolbarMinWidth)
|| isMobile
|| (layoutType === LAYOUT_TYPE.VIDEO_FOCUS && numCameras > 0))
? svgWidth
: presentationToolbarMinWidth;
return (
<PresentationToolbarContainer
{...{
fitToWidth,
zoom,
podId,
currentSlide,
toolbarWidth,
fullscreenElementId,
layoutContextDispatch,
}}
currentSlideNum={currentSlide.num}
presentationId={currentSlide.presentationId}
zoomChanger={this.zoomChanger}
fitToWidthHandler={this.fitToWidthHandler}
isFullscreen={fullscreenContext}
fullscreenAction={ACTIONS.SET_FULLSCREEN_ELEMENT}
/>
);
}
renderWhiteboardToolbar(svgDimensions) {
const { currentSlide } = this.props;
if (!this.isPresentationAccessible()) return null;
return (
<WhiteboardToolbarContainer
whiteboardId={currentSlide.id}
height={svgDimensions.height}
/>
);
}
renderPresentationDownload() {
const { presentationIsDownloadable, downloadPresentationUri } = this.props;
if (!presentationIsDownloadable) return null;
const handleDownloadPresentation = () => {
window.open(downloadPresentationUri);
};
return (
<DownloadPresentationButton
handleDownloadPresentation={handleDownloadPresentation}
dark
/>
);
}
renderPresentationFullscreen() {
const {
intl,
fullscreenElementId,
} = this.props;
const { isFullscreen } = this.state;
if (!ALLOW_FULLSCREEN) return null;
return (
<FullscreenButtonContainer
fullscreenRef={this.refPresentationContainer}
elementName={intl.formatMessage(intlMessages.presentationLabel)}
elementId={fullscreenElementId}
isFullscreen={isFullscreen}
color="muted"
fullScreenStyle={false}
className={styles.presentationFullscreen}
/>
);
}
renderCurrentPresentationToast() {
const {
intl, currentPresentation, userIsPresenter, downloadPresentationUri,
} = this.props;
const { downloadable } = currentPresentation;
return (
<div className={styles.innerToastWrapper}>
<div className={styles.toastIcon}>
<div className={styles.iconWrapper}>
<Icon iconName="presentation" />
</div>
</div>
<div className={styles.toastTextContent} data-test="toastSmallMsg">
<div>{`${intl.formatMessage(intlMessages.changeNotification)}`}</div>
<div className={styles.presentationName}>{`${currentPresentation.name}`}</div>
</div>
{downloadable && !userIsPresenter
? (
<span className={styles.toastDownload}>
<div className={toastStyles.separator} />
<a
data-test="toastDownload"
className={styles.downloadBtn}
aria-label={`${intl.formatMessage(intlMessages.downloadLabel)} ${currentPresentation.name}`}
href={downloadPresentationUri}
target="_blank"
rel="noopener noreferrer"
>
{intl.formatMessage(intlMessages.downloadLabel)}
</a>
</span>
) : null}
</div>
);
}
render() {
const {
userIsPresenter,
multiUser,
slidePosition,
presentationBounds,
fullscreenContext,
isMobile,
layoutType,
numCameras,
currentPresentation,
} = this.props;
const {
showSlide,
isFullscreen,
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();
const { presentationToolbarMinWidth } = DEFAULT_VALUES;
const isLargePresentation = (svgWidth > presentationToolbarMinWidth || isMobile)
&& !(layoutType === LAYOUT_TYPE.VIDEO_FOCUS && numCameras > 0 && !fullscreenContext);
const containerWidth = isLargePresentation
? svgWidth
: presentationToolbarMinWidth;
if (!currentPresentation && this.refPresentationContainer) {
return (
<PresentationPlaceholder
{
...presentationBounds
}
setPresentationRef={this.setPresentationRef}
/>
);
}
return (
<div
role="region"
ref={(ref) => { this.refPresentationContainer = ref; }}
className={styles.presentationContainer}
style={{
top: presentationBounds.top,
left: presentationBounds.left,
right: presentationBounds.right,
width: presentationBounds.width,
height: presentationBounds.height,
zIndex: fullscreenContext ? presentationBounds.zIndex : undefined,
}}
>
{isFullscreen && <PollingContainer />}
<div
ref={(ref) => { this.refPresentation = ref; }}
className={styles.presentation}
>
<div
ref={(ref) => { this.refWhiteboardArea = ref; }}
className={styles.whiteboardSizeAvailable}
/>
<div
className={styles.svgContainer}
style={{
height: svgHeight + toolbarHeight,
}}
>
{showSlide && svgWidth > 0 && svgHeight > 0
? this.renderPresentation(svgDimensions, viewBoxDimensions)
: null}
{showSlide && (userIsPresenter || multiUser)
? this.renderWhiteboardToolbar(svgDimensions)
: null}
{showSlide && userIsPresenter
? (
<div
className={styles.presentationToolbar}
ref={(ref) => { this.refPresentationToolbar = ref; }}
style={
{
width: containerWidth,
}
}
>
{this.renderPresentationToolbar(svgWidth)}
</div>
)
: null}
</div>
</div>
</div>
);
}
}
export default injectIntl(Presentation);
Presentation.propTypes = {
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,
};
Presentation.defaultProps = {
currentSlide: undefined,
slidePosition: undefined,
};