39 lines
1003 B
JavaScript
39 lines
1003 B
JavaScript
// @flow
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import { getJitsiMeetGlobalNS, loadScript } from '../base/util';
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let filterSupport;
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/**
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* Returns promise that resolves with the blur effect instance.
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*
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* @returns {Promise<JitsiStreamBlurEffect>} - Resolves with the blur effect instance.
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*/
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export function getBlurEffect() {
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const ns = getJitsiMeetGlobalNS();
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if (ns.effects && ns.effects.createBlurEffect) {
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return ns.effects.createBlurEffect();
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}
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return loadScript('libs/video-blur-effect.min.js').then(() => ns.effects.createBlurEffect());
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}
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/**
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* Checks context filter support.
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*
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* @returns {boolean} True if the filter is supported and false if the filter is not supported by the browser.
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*/
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export function checkBlurSupport() {
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if (typeof filterSupport === 'undefined') {
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const canvas = document.createElement('canvas');
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const ctx = canvas.getContext('2d');
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filterSupport = typeof ctx.filter !== 'undefined';
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canvas.remove();
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}
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return filterSupport;
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}
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