a2ba1b8189
Removes the following as they unnecessary /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
666 lines
21 KiB
JavaScript
666 lines
21 KiB
JavaScript
/* Copyright 2012 Mozilla Foundation
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
// simple and incomplete implementation of promises
|
|
function Promise() {}
|
|
Promise.prototype = {
|
|
then: function (callback) {
|
|
this.callback = callback;
|
|
if ('result' in this) callback(this.result);
|
|
},
|
|
resolve: function (result) {
|
|
if ('result' in this) return;
|
|
this.result = result;
|
|
if ('callback' in this) this.callback(result);
|
|
}
|
|
};
|
|
|
|
var isCanvasSupported = (function () {
|
|
try {
|
|
document.createElement('canvas').getContext('2d').fillStyle = '#FFFFFF';
|
|
return true;
|
|
} catch (e) {
|
|
return false;
|
|
}
|
|
})();
|
|
|
|
var tests = [
|
|
{
|
|
id: 'canvas',
|
|
name: 'CANVAS element is present',
|
|
run: function () {
|
|
if (isCanvasSupported) {
|
|
return { output: 'Success', emulated: '' };
|
|
} else {
|
|
return { output: 'Failed', emulated: 'No' };
|
|
}
|
|
},
|
|
impact: 'Critical',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'get-literal',
|
|
name: 'get-literal properties',
|
|
run: function () {
|
|
try {
|
|
var Test = eval('var Test = { get t() { return {}; } }; Test');
|
|
Test.t.test = true;
|
|
return { output: 'Success', emulated: '' };
|
|
} catch (e) {
|
|
return { output: 'Failed', emulated: 'No' };
|
|
}
|
|
},
|
|
impact: 'Critical',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'addEventListener',
|
|
name: 'addEventListener() is present',
|
|
run: function () {
|
|
var div = document.createElement('div');
|
|
if (div.addEventListener)
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'No' };
|
|
},
|
|
impact: 'Critical',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'Uint8Array',
|
|
name: 'Uint8Array is present',
|
|
run: function () {
|
|
if (typeof Uint8Array !== 'undefined')
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
},
|
|
impact: 'Critical',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'Uint16Array',
|
|
name: 'Uint16Array is present',
|
|
run: function () {
|
|
if (typeof Uint16Array !== 'undefined')
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
},
|
|
impact: 'Critical',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'Int32Array',
|
|
name: 'Int32Array is present',
|
|
run: function () {
|
|
if (typeof Int32Array !== 'undefined')
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
},
|
|
impact: 'Critical',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'Float32Array',
|
|
name: 'Float32Array is present',
|
|
run: function () {
|
|
if (typeof Float32Array !== 'undefined')
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
},
|
|
impact: 'Critical',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'Float64Array',
|
|
name: 'Float64Array is present',
|
|
run: function () {
|
|
if (typeof Float64Array !== 'undefined')
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
},
|
|
impact: 'Critical',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'Object-create',
|
|
name: 'Object.create() is present',
|
|
run: function () {
|
|
if (Object.create instanceof Function)
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
},
|
|
impact: 'Critical',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'Object-defineProperty',
|
|
name: 'Object.defineProperty() is present',
|
|
run: function () {
|
|
if (Object.defineProperty instanceof Function)
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
},
|
|
impact: 'Critical',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'Object-defineProperty-DOM',
|
|
name: 'Object.defineProperty() can be used on DOM objects',
|
|
run: function () {
|
|
if (!(Object.defineProperty instanceof Function))
|
|
return { output: 'Skipped', emulated: '' };
|
|
try {
|
|
// some browsers (e.g. safari) cannot use defineProperty() on DOM objects
|
|
// and thus the native version is not sufficient
|
|
Object.defineProperty(new Image(), 'id', { value: 'test' });
|
|
return { output: 'Success', emulated: '' };
|
|
} catch (e) {
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
}
|
|
},
|
|
impact: 'Important',
|
|
area: 'Viewer'
|
|
},
|
|
{
|
|
id: 'get-literal-redefine',
|
|
name: 'Defined via get-literal properties can be redefined',
|
|
run: function () {
|
|
if (!(Object.defineProperty instanceof Function))
|
|
return { output: 'Skipped', emulated: '' };
|
|
try {
|
|
var TestGetter = eval('var Test = function () {}; Test.prototype = { get id() { } }; Test');
|
|
Object.defineProperty(new TestGetter(), 'id',
|
|
{ value: '', configurable: true, enumerable: true, writable: false });
|
|
return { output: 'Success', emulated: '' };
|
|
} catch (e) {
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
}
|
|
},
|
|
impact: 'Critical',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'Object-keys',
|
|
name: 'Object.keys() is present',
|
|
run: function () {
|
|
if (Object.keys instanceof Function)
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
},
|
|
impact: 'Critical',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'FileReader',
|
|
name: 'FileReader is present',
|
|
run: function () {
|
|
if (typeof FileReader !== 'undefined')
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'No' };
|
|
},
|
|
impact: 'Normal',
|
|
area: 'Demo'
|
|
},
|
|
{
|
|
id: 'FileReader-readAsArrayBuffer',
|
|
name: 'FileReader.prototype.readAsArrayBuffer() is present',
|
|
run: function () {
|
|
if (typeof FileReader === 'undefined')
|
|
return { output: 'Skipped', emulated: '' };
|
|
if (FileReader.prototype.readAsArrayBuffer instanceof Function)
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
},
|
|
impact: 'Normal',
|
|
area: 'Demo'
|
|
},
|
|
{
|
|
id: 'XMLHttpRequest-overrideMimeType',
|
|
name: 'XMLHttpRequest.prototype.overrideMimeType() is present',
|
|
run: function () {
|
|
if (XMLHttpRequest.prototype.overrideMimeType instanceof Function)
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
},
|
|
impact: 'Important',
|
|
area: 'Viewer'
|
|
},
|
|
{
|
|
id: 'XMLHttpRequest-response',
|
|
name: 'XMLHttpRequest.prototype.response is present',
|
|
run: function () {
|
|
var xhr = new XMLHttpRequest();
|
|
if ('response' in xhr)
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
},
|
|
impact: 'Critical',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'bota',
|
|
name: 'btoa() is present',
|
|
run: function () {
|
|
if ('btoa' in window)
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
},
|
|
impact: 'Critical',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'atob',
|
|
name: 'atob() is present',
|
|
run: function () {
|
|
if ('atob' in window)
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
},
|
|
impact: 'Critical',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'Function-bind',
|
|
name: 'Function.prototype.bind is present',
|
|
run: function () {
|
|
if (Function.prototype.bind instanceof Function)
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
},
|
|
impact: 'Critical',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'dataset',
|
|
name: 'dataset is present for HTML element',
|
|
run: function () {
|
|
var div = document.createElement('div');
|
|
if ('dataset' in div)
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
},
|
|
impact: 'Important',
|
|
area: 'Viewer'
|
|
},
|
|
{
|
|
id: 'classList',
|
|
name: 'classList is present for HTML element',
|
|
run: function () {
|
|
var div = document.createElement('div');
|
|
if ('classList' in div)
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
},
|
|
impact: 'Important',
|
|
area: 'Viewer'
|
|
},
|
|
{
|
|
id: 'console',
|
|
name: 'console object is present',
|
|
run: function () {
|
|
if ('console' in window)
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
},
|
|
impact: 'Critical',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'console-log-bind',
|
|
name: 'console.log is a bind-able function',
|
|
run: function () {
|
|
if (!('console' in window))
|
|
return { output: 'Skipped', emulated: '' };
|
|
if ('bind' in console.log)
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
},
|
|
impact: 'Critical',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'navigator-language',
|
|
name: 'navigator.language is present',
|
|
run: function () {
|
|
if ('language' in navigator)
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
},
|
|
impact: 'Important',
|
|
area: 'Viewer'
|
|
},
|
|
{
|
|
id: 'fillRule-evenodd',
|
|
name: 'evenodd fill rule is supported',
|
|
run: function () {
|
|
if (!isCanvasSupported)
|
|
return { output: 'Skipped', emulated: '' };
|
|
|
|
var canvas = document.createElement('canvas');
|
|
var ctx = canvas.getContext('2d');
|
|
ctx.rect(1, 1, 50, 50);
|
|
ctx.rect(5, 5, 41, 41);
|
|
|
|
if ('mozFillRule' in ctx) {
|
|
ctx.mozFillRule = 'evenodd';
|
|
ctx.fill();
|
|
} else {
|
|
ctx.fill('evenodd');
|
|
}
|
|
|
|
var data = ctx.getImageData(0, 0, 50, 50).data;
|
|
var isEvenOddFill = data[20 * 4 + 20 * 200 + 3] == 0 &&
|
|
data[2 * 4 + 2 * 200 + 3] != 0;
|
|
|
|
if (isEvenOddFill)
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'No' };
|
|
},
|
|
impact: 'Important',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'dash-array',
|
|
name: 'dashed line style is supported',
|
|
run: function () {
|
|
if (!isCanvasSupported)
|
|
return { output: 'Skipped', emulated: '' };
|
|
|
|
var canvas = document.createElement('canvas');
|
|
var ctx = canvas.getContext('2d');
|
|
ctx.moveTo(0,5);
|
|
ctx.lineTo(50, 5);
|
|
ctx.lineWidth = 10;
|
|
|
|
if ('setLineDash' in ctx) {
|
|
ctx.setLineDash([10, 10]);
|
|
ctx.lineDashOffset = 0;
|
|
} else {
|
|
ctx.mozDash = [10, 10];
|
|
ctx.mozDashOffset = 0;
|
|
}
|
|
ctx.stroke();
|
|
|
|
var data = ctx.getImageData(0, 0, 50, 50).data;
|
|
var isDashed = data[5 * 4 + 5 * 200 + 3] != 0 &&
|
|
data[15 * 4 + 5 * 200 + 3] == 0;
|
|
|
|
if (isDashed)
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'No' };
|
|
},
|
|
impact: 'Important',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'font-face',
|
|
name: '@font-face is supported/enabled',
|
|
run: function () {
|
|
if (!isCanvasSupported)
|
|
return { output: 'Skipped', emulated: '' };
|
|
var promise = new Promise();
|
|
setTimeout(function() {
|
|
if (checkCanvas('plus'))
|
|
promise.resolve({ output: 'Success', emulated: '' });
|
|
else
|
|
promise.resolve({ output: 'Failed', emulated: 'No' });
|
|
}, 2000);
|
|
return promise;
|
|
},
|
|
impact: 'Important',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'font-face-sync',
|
|
name: '@font-face loading completion detection',
|
|
run: function () {
|
|
if (!isCanvasSupported)
|
|
return { output: 'Skipped', emulated: '' };
|
|
|
|
// Add the font-face rule to the document
|
|
var rule = '@font-face { font-family: \'plus-loaded\'; src: url(data:font/opentype;base64,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); }';
|
|
|
|
var styleElement = document.getElementById('fontFaces');
|
|
var styleSheet = styleElement.sheet;
|
|
styleSheet.insertRule(rule, styleSheet.cssRules.length);
|
|
|
|
// checking if data urls are loaded synchronously
|
|
if (checkCanvas('plus-loaded'))
|
|
return { output: 'Success', emulated: '' };
|
|
|
|
// TODO checking if data urls are loaded asynchronously
|
|
|
|
var usageElement = document.createElement('div');
|
|
usageElement.setAttribute('style', 'font-family: plus-loaded; visibility: hidden;');
|
|
usageElement.textContent = '`';
|
|
document.body.appendChild(usageElement);
|
|
|
|
// verify is font is loaded
|
|
var promise = new Promise();
|
|
setTimeout(function() {
|
|
if (checkCanvas('plus-loaded'))
|
|
promise.resolve({ output: 'Failed', emulated: 'Yes' });
|
|
else
|
|
promise.resolve({ output: 'Failed', emulated: 'No' });
|
|
}, 2000);
|
|
return promise;
|
|
},
|
|
impact: 'Important',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'Worker',
|
|
name: 'Worker is present',
|
|
run: function () {
|
|
if (typeof Worker != 'undefined')
|
|
return { output: 'Success', emulated: '' };
|
|
else
|
|
return { output: 'Failed', emulated: 'No' };
|
|
},
|
|
impact: 'Important',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'Worker-Uint8Array',
|
|
name: 'Worker can receive/send typed arrays',
|
|
run: function () {
|
|
if (typeof Worker == 'undefined')
|
|
return { output: 'Skipped', emulated: '' };
|
|
|
|
try {
|
|
var worker = new Worker('worker-stub.js');
|
|
|
|
var promise = new Promise();
|
|
var timeout = setTimeout(function () {
|
|
promise.resolve({ output: 'Failed', emulated: '?' });
|
|
}, 5000);
|
|
|
|
worker.addEventListener('message', function (e) {
|
|
var data = e.data;
|
|
if (data.action == 'test' && data.result)
|
|
promise.resolve({ output: 'Success', emulated: '' });
|
|
else
|
|
promise.resolve({ output: 'Failed', emulated: 'Yes' });
|
|
}, false);
|
|
worker.postMessage({action: 'test',
|
|
data: new Uint8Array(60000000)}); // 60MB
|
|
return promise;
|
|
} catch (e) {
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
}
|
|
},
|
|
impact: 'Important',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'Worker-transfers',
|
|
name: 'Worker can use transfers for postMessage',
|
|
run: function () {
|
|
if (typeof Worker == 'undefined')
|
|
return { output: 'Skipped', emulated: '' };
|
|
|
|
try {
|
|
var worker = new Worker('worker-stub.js');
|
|
|
|
var promise = new Promise();
|
|
var timeout = setTimeout(function () {
|
|
promise.resolve({ output: 'Failed', emulated: '?' });
|
|
}, 5000);
|
|
|
|
worker.addEventListener('message', function (e) {
|
|
var data = e.data;
|
|
if (data.action == 'test-transfers' && data.result)
|
|
promise.resolve({ output: 'Success', emulated: '' });
|
|
else
|
|
promise.resolve({ output: 'Failed', emulated: 'Yes' });
|
|
}, false);
|
|
var testObj = new Uint8Array([255]);
|
|
worker.postMessage({action: 'test-transfers',
|
|
data: testObj}, [testObj.buffer]);
|
|
return promise;
|
|
} catch (e) {
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
}
|
|
},
|
|
impact: 'Normal',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'Worker-xhr-response',
|
|
name: 'XMLHttpRequest supports the reponse property in web workers',
|
|
run: function () {
|
|
if (typeof Worker == 'undefined')
|
|
return { output: 'Skipped', emulated: '' };
|
|
|
|
try {
|
|
var worker = new Worker('worker-stub.js');
|
|
|
|
var promise = new Promise();
|
|
var timeout = setTimeout(function () {
|
|
promise.resolve({ output: 'Failed', emulated: '?' });
|
|
}, 5000);
|
|
|
|
worker.addEventListener('message', function (e) {
|
|
var data = e.data;
|
|
if (data.action == 'xhr' && data.result)
|
|
promise.resolve({ output: 'Success', emulated: '' });
|
|
else
|
|
promise.resolve({ output: 'Failed', emulated: 'Yes' });
|
|
}, false);
|
|
worker.postMessage({action: 'xhr'});
|
|
return promise;
|
|
} catch (e) {
|
|
return { output: 'Failed', emulated: 'Yes' };
|
|
}
|
|
},
|
|
impact: 'Important',
|
|
area: 'Core'
|
|
},
|
|
{
|
|
id: 'Canvas Blend Mode',
|
|
name: 'Canvas supports extended blend modes',
|
|
run: function () {
|
|
var fail = { output: 'Failed', emulated: 'No' };
|
|
var ctx = document.createElement('canvas').getContext('2d');
|
|
ctx.canvas.width = 1;
|
|
ctx.canvas.height = 1;
|
|
var mode = 'difference';
|
|
ctx.globalCompositeOperation = mode;
|
|
if (ctx.globalCompositeOperation !== mode) {
|
|
return fail;
|
|
}
|
|
// Chrome supports setting the value, but it may not actually be
|
|
// implemented, so we have to actually test the blend mode.
|
|
ctx.fillStyle = 'red';
|
|
ctx.fillRect(0, 0, 1, 1);
|
|
ctx.fillStyle = 'blue';
|
|
ctx.fillRect(0, 0, 1, 1);
|
|
var pix = ctx.getImageData(0, 0, 1, 1).data;
|
|
if (pix[0] !== 255 || pix[1] !== 0 || pix[2] !== 255) {
|
|
return fail;
|
|
}
|
|
return { output: 'Success', emulated: '' };
|
|
},
|
|
impact: 'Important',
|
|
area: 'Core'
|
|
}
|
|
];
|
|
|
|
function checkCanvas(font) {
|
|
var canvas = document.createElement('canvas');
|
|
var canvasHolder = document.getElementById('canvasHolder');
|
|
canvasHolder.appendChild(canvas);
|
|
var ctx = canvas.getContext('2d');
|
|
ctx.font = '40px \'' + font + '\'';
|
|
ctx.fillText('\u0060', 0, 40);
|
|
var data = ctx.getImageData(0, 0, 40, 40).data;
|
|
canvasHolder.removeChild(canvas);
|
|
|
|
// detects plus figure
|
|
var minx = 40, maxx = 0, miny = 40, maxy = 0;
|
|
for (var y = 0; y < 40; y++) {
|
|
for (var x = 0; x < 40; x++) {
|
|
if (data[x * 4 + y * 160 + 3] == 0) continue; // no color
|
|
minx = Math.min(minx, x); miny = Math.min(miny, y);
|
|
maxx = Math.max(maxx, x); maxy = Math.max(maxy, y);
|
|
}
|
|
}
|
|
|
|
var colors = [[0, 0, 0], [0, 0, 0], [0, 0, 0]];
|
|
var counts = [[0, 0, 0], [0, 0, 0], [0, 0, 0]];
|
|
for (var y = miny; y <= maxy; y++) {
|
|
for (var x = minx; x <= maxx; x++) {
|
|
var i = Math.floor((x - minx) * 3 / (maxx - minx + 1));
|
|
var j = Math.floor((y - miny) * 3 / (maxy - miny + 1));
|
|
counts[i][j]++;
|
|
if (data[x * 4 + y * 160 + 3] != 0)
|
|
colors[i][j]++;
|
|
}
|
|
}
|
|
var isPlus =
|
|
colors[0][0] * 3 < counts[0][0] &&
|
|
colors[0][1] * 3 > counts[0][1] &&
|
|
colors[0][2] * 3 < counts[0][2] &&
|
|
colors[1][0] * 3 > counts[1][0] &&
|
|
colors[1][1] * 3 > counts[1][1] &&
|
|
colors[1][2] * 3 > counts[1][2] &&
|
|
colors[2][0] * 3 < counts[2][0] &&
|
|
colors[2][1] * 3 > counts[2][1] &&
|
|
colors[2][2] * 3 < counts[2][2];
|
|
return isPlus;
|
|
}
|