summaryrefslogtreecommitdiffstats
path: root/dom/browser-element/mochitest/browserElement_GetScreenshot.js
diff options
context:
space:
mode:
authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/browser-element/mochitest/browserElement_GetScreenshot.js
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
downloadUXP-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.js117
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);