https://satcar.dk/templates/satcar/js/mapbox-gl/src/util/window

1// @flow strict
2
3// This file is intended for use in the GL-JS test suite
4// It implements a JSDOM window object for use in Node environments
5// In a browser environment, this file is replaced with ./src/util/browser/window.js
6// when Rollup builds the main bundle
7// See https://github.com/mapbox/mapbox-gl-js/blob/master/package.json#L104-L108
8
9import jsdom from 'jsdom';
10
11import gl from 'gl';
12import sinon from 'sinon';
13
14import type {Window} from '../types/window';
15
16const {window: _window} = new jsdom.JSDOM('', {
17    virtualConsole: new jsdom.VirtualConsole().sendTo(console)
18});
19
20restore();
21
22export default _window;
23
24function restore(): Window {
25    // Remove previous window from exported object
26    const previousWindow = _window;
27    if (previousWindow.close) previousWindow.close();
28    for (const key in previousWindow) {
29        if (previousWindow.hasOwnProperty(key)) {
30            delete previousWindow[key];
31        }
32    }
33
34    // Create new window and inject into exported object
35    const {window} = new jsdom.JSDOM('', {
36        // Send jsdom console output to the node console object.
37        virtualConsole: new jsdom.VirtualConsole().sendTo(console)
38    });
39
40    // Delete local and session storage from JSDOM and stub them out with a warning log
41    // Accessing these properties during extend() produces an error in Node environments
42    // See https://github.com/mapbox/mapbox-gl-js/pull/7455 for discussion
43    delete window.localStorage;
44    delete window.sessionStorage;
45    window.localStorage = window.sessionStorage = () => console.log('Local and session storage not available in Node. Use a stub implementation if needed for testing.');
46
47    window.devicePixelRatio = 1;
48
49    window.requestAnimationFrame = function(callback) {
50        return setImmediate(callback, 0);
51    };
52    window.cancelAnimationFrame = clearImmediate;
53
54    // Add webgl context with the supplied GL
55    const originalGetContext = window.HTMLCanvasElement.prototype.getContext;
56    window.HTMLCanvasElement.prototype.getContext = function (type, attributes) {
57        if (type === 'webgl') {
58            if (!this._webGLContext) {
59                this._webGLContext = gl(this.width, this.height, attributes);
60            }
61            return this._webGLContext;
62        }
63        // Fallback to existing HTMLCanvasElement getContext behaviour
64        return originalGetContext.call(this, type, attributes);
65    };
66
67    window.useFakeHTMLCanvasGetContext = function() {
68        this.HTMLCanvasElement.prototype.getContext = function() { return '2d'; };
69    };
70
71    window.useFakeXMLHttpRequest = function() {
72        sinon.xhr.supportsCORS = true;
73        this.server = sinon.fakeServer.create();
74        this.XMLHttpRequest = this.server.xhr;
75    };
76
77    window.URL.revokeObjectURL = function () {};
78
79    window.restore = restore;
80
81    window.ImageData = window.ImageData || function() { return false; };
82    window.ImageBitmap = window.ImageBitmap || function() { return false; };
83    window.WebGLFramebuffer = window.WebGLFramebuffer || Object;
84    Object.assign(_window, window); // eslint-disable-line no-restricted-properties
85
86    return window;
87}