76 lines
2.7 KiB
JavaScript
76 lines
2.7 KiB
JavaScript
// @flow
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import type { Dispatch } from 'redux';
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import VideoLayout from '../../../modules/UI/videolayout/VideoLayout';
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import { MEDIA_TYPE } from '../base/media';
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import { getTrackByMediaTypeAndParticipant } from '../base/tracks';
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export * from './actions.any';
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/**
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* Captures a screenshot of the video displayed on the large video.
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*
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* @returns {Function}
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*/
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export function captureLargeVideoScreenshot() {
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return (dispatch: Dispatch<any>, getState: Function): Promise<string> => {
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const state = getState();
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const largeVideo = state['features/large-video'];
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if (!largeVideo) {
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return Promise.resolve();
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}
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const tracks = state['features/base/tracks'];
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const { jitsiTrack } = getTrackByMediaTypeAndParticipant(tracks, MEDIA_TYPE.VIDEO, largeVideo.participantId);
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const videoStream = jitsiTrack.getOriginalStream();
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// Get the video element for the large video, cast HTMLElement to HTMLVideoElement to make flow happy.
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/* eslint-disable-next-line no-extra-parens*/
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const videoElement = ((document.getElementById('largeVideo'): any): HTMLVideoElement);
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if (!videoElement) {
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return Promise.resolve();
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}
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// Create a HTML canvas and draw video on to the canvas.
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const [ track ] = videoStream.getVideoTracks();
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const { height, width } = track.getSettings() ?? track.getConstraints();
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const canvasElement = document.createElement('canvas');
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const ctx = canvasElement.getContext('2d');
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canvasElement.style.display = 'none';
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canvasElement.height = parseInt(height, 10);
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canvasElement.width = parseInt(width, 10);
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ctx.drawImage(videoElement, 0, 0);
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const dataURL = canvasElement.toDataURL('image/png', 1.0);
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// Cleanup.
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ctx.clearRect(0, 0, canvasElement.width, canvasElement.height);
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canvasElement.remove();
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return Promise.resolve(dataURL);
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};
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}
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/**
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* Resizes the large video container based on the dimensions provided.
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*
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* @param {number} width - Width that needs to be applied on the large video container.
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* @param {number} height - Height that needs to be applied on the large video container.
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* @returns {Function}
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*/
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export function resizeLargeVideo(width: number, height: number) {
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return (dispatch: Dispatch<any>, getState: Function) => {
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const state = getState();
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const largeVideo = state['features/large-video'];
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if (largeVideo) {
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const largeVideoContainer = VideoLayout.getLargeVideo();
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largeVideoContainer.updateContainerSize(width, height);
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largeVideoContainer.resize();
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}
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};
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}
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