107 lines
3.0 KiB
JavaScript
107 lines
3.0 KiB
JavaScript
/* eslint-disable */
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// From: https://github.com/justadudewhohacks/face-api.js/issues/47
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// This is needed because face-api.js does not support working in a WebWorker natively
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// Updated Dec 1 2020 to work on latest Chrome (tested in WebWorkers on Chrome Mobile on Android / Google Pixel 3 as well)
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if(!self.OffscreenCanvas) {
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self.OffscreenCanvas = class OffscreenCanvas {
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constructor() {
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}
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}
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}
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if(!self.OffscreenCanvasRenderingContext2D) {
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self.OffscreenCanvasRenderingContext2D = class OffscreenCanvasRenderingContext2D {
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constructor() {
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}
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}
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}
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self.Canvas = self.HTMLCanvasElement = OffscreenCanvas;
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// self.HTMLCanvasElement.name = 'HTMLCanvasElement';
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// self.Canvas.name = 'Canvas';
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self.CanvasRenderingContext2D = OffscreenCanvasRenderingContext2D;
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function HTMLImageElement(){}
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function HTMLVideoElement(){}
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self.Image = HTMLImageElement;
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self.Video = HTMLVideoElement;
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function Storage () {
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let _data = {};
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this.clear = function(){ return _data = {}; };
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this.getItem = function(id){ return _data.hasOwnProperty(id) ? _data[id] : undefined; };
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this.removeItem = function(id){ return delete _data[id]; };
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this.setItem = function(id, val){ return _data[id] = String(val); };
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}
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class Document extends EventTarget {}
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self.document = new Document();
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self.window = self.Window = self;
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self.localStorage = new Storage();
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function createElement(element) {
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switch(element) {
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case 'canvas':
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let canvas = new Canvas(1,1);
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canvas.localName = 'canvas';
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canvas.nodeName = 'CANVAS';
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canvas.tagName = 'CANVAS';
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canvas.nodeType = 1;
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canvas.innerHTML = '';
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canvas.remove = () => { console.log('nope'); };
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return canvas;
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default:
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console.log('arg', element);
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break;
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}
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}
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document.createElement = createElement;
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document.location = self.location;
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// These are the same checks face-api.js/isBrowser does
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if(!typeof window == 'object') {
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console.warn("Check failed: window");
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}
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if(typeof document === 'undefined') {
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console.warn("Check failed: document");
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}
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if(typeof HTMLImageElement === 'undefined') {
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console.warn("Check failed: HTMLImageElement");
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}
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if(typeof HTMLCanvasElement === 'undefined') {
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console.warn("Check failed: HTMLCanvasElement");
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}
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if(typeof HTMLVideoElement === 'undefined') {
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console.warn("Check failed: HTMLVideoElement");
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}
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if(typeof ImageData === 'undefined') {
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console.warn("Check failed: ImageData");
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}
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if(typeof CanvasRenderingContext2D === 'undefined') {
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console.warn("Check failed: CanvasRenderingContext2D");
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}
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self.window = window;
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self.document = document;
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self.HTMLImageElement = HTMLImageElement;
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self.HTMLVideoElement = HTMLVideoElement;
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// These are the same checks face-api.js/isBrowser does
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const isBrowserCheck = typeof window === 'object'
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&& typeof document !== 'undefined'
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&& typeof HTMLImageElement !== 'undefined'
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&& typeof HTMLCanvasElement !== 'undefined'
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&& typeof HTMLVideoElement !== 'undefined'
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&& typeof ImageData !== 'undefined'
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&& typeof CanvasRenderingContext2D !== 'undefined';
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;
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if(!isBrowserCheck) {
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throw new Error("Failed to monkey patch for face-api, face-api will fail");
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}
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