diff options
| author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
|---|---|---|
| committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
| commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
| tree | 10027f336435511475e392454359edea8e25895d /dom/browser-element/mochitest/browserElement_GetScreenshot.js | |
| parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
| download | UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip | |
Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/browser-element/mochitest/browserElement_GetScreenshot.js')
| -rw-r--r-- | dom/browser-element/mochitest/browserElement_GetScreenshot.js | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/dom/browser-element/mochitest/browserElement_GetScreenshot.js b/dom/browser-element/mochitest/browserElement_GetScreenshot.js new file mode 100644 index 000000000..75d70f04c --- /dev/null +++ b/dom/browser-element/mochitest/browserElement_GetScreenshot.js @@ -0,0 +1,117 @@ +/* Any copyright is dedicated to the public domain. + http://creativecommons.org/publicdomain/zero/1.0/ */ + +// Test the getScreenshot property for mozbrowser +"use strict"; + +SimpleTest.waitForExplicitFinish(); +browserElementTestHelpers.setEnabledPref(true); + +function runTest() { + var iframe1 = document.createElement('iframe'); + iframe1.setAttribute('mozbrowser', 'true'); + + iframe1.src = 'data:text/html,<html>' + + '<body style="background:green">hello</body></html>'; + document.body.appendChild(iframe1); + + var screenshotImageDatas = []; + + function screenshotTaken(aScreenshotImageData) { + screenshotImageDatas.push(aScreenshotImageData); + + if (screenshotImageDatas.length === 1) { + ok(true, 'Got initial non blank screenshot'); + + var view = aScreenshotImageData.data; + if (view[3] !== 255) { + ok(false, 'The first pixel of initial screenshot is not opaque'); + SimpleTest.finish(); + return; + } + ok(true, 'Verified the first pixel of initial screenshot is opaque'); + + iframe1.src = 'data:text/html,<html>' + + '<body style="background:transparent">hello</body></html>'; + + iframe1.addEventListener('mozbrowserloadend', ()=>takeScreenshot('image/png')); + + } + else if (screenshotImageDatas.length === 2) { + ok(true, 'Got updated screenshot after source page changed'); + + var view = aScreenshotImageData.data; + if (view[3] !== 0) { + // The case here will always fail when oop'd on Firefox Desktop, + // but not on B2G Emulator + // See https://bugzil.la/878003#c20 + + var isB2G = (navigator.platform === ''); + info('navigator.platform: ' + navigator.platform); + if (!isB2G && browserElementTestHelpers.getOOPByDefaultPref()) { + todo(false, 'The first pixel of updated screenshot is not transparent'); + } else { + ok(false, 'The first pixel of updated screenshot is not transparent'); + } + SimpleTest.finish(); + return; + } + + ok(true, 'Verified the first pixel of updated screenshot is transparent'); + SimpleTest.finish(); + } + } + + // We continually take screenshots until we get one that we are + // happy with. + function takeScreenshot(mimeType) { + function gotImage(e) { + // |this| is the Image. + + URL.revokeObjectURL(this.src); + + if (e.type === 'error' || !this.width || !this.height) { + ok(false, "load image error"); + SimpleTest.finish(); + return; + } + + var canvas = document.createElement('canvas'); + canvas.width = canvas.height = 1000; + var ctx = canvas.getContext('2d'); + ctx.drawImage(this, 0, 0); + var imageData = ctx.getImageData(0, 0, 1000, 1000); + + screenshotTaken(imageData); + } + + function getScreenshotImageData(e) { + var blob = e.target.result; + if (blob.type !== mimeType) { + ok(false, 'MIME type of screenshot taken incorrect'); + SimpleTest.finish(); + } + + if (blob.size === 0) { + ok(false, "get screenshot image error"); + SimpleTest.finish(); + } + + var img = new Image(); + img.src = URL.createObjectURL(blob); + img.onload = img.onerror = gotImage; + } + + iframe1.getScreenshot(1000, 1000, mimeType).onsuccess = + getScreenshotImageData; + } + + function iframeLoadedHandler(e) { + iframe1.removeEventListener('mozbrowserloadend', iframeLoadedHandler); + takeScreenshot('image/jpeg'); + } + + iframe1.addEventListener('mozbrowserloadend', iframeLoadedHandler); +} + +addEventListener('testready', runTest); |