<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=932937
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 932937</title>
<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css">
<script type="application/javascript;version=1.8" src="inspector-helpers.js"></script>
<script type="application/javascript;version=1.8">
const inspector = require("devtools/shared/fronts/inspector");
window.onload = function() {
SimpleTest.waitForExplicitFinish();
runNextTest();
}
var gWalker = null;
addTest(function setup() {
let url = document.getElementById("inspectorContent").href;
attachURL(url, function(err, client, tab, doc) {
let {InspectorFront} = require("devtools/shared/fronts/inspector");
let inspector = InspectorFront(client, tab);
promiseDone(inspector.getWalker().then(walker => {
gWalker = walker;
}).then(runNextTest));
});
});
addTest(function testLargeImage() {
// Select the image node from the test page
gWalker.querySelector(gWalker.rootNode, ".big-horizontal").then(img => {
ok(img, "Image node found in the test page");
ok(img.getImageData, "Image node has the getImageData function");
img.getImageData(100).then(imageData => {
ok(imageData.data, "Image data actor was sent back");
ok(imageData.size, "Image size info was sent back too");
is(imageData.size.naturalWidth, 5333, "Natural width of the image correct");
is(imageData.size.naturalHeight, 3000, "Natural width of the image correct");
ok(imageData.size.resized, "Image was resized");
imageData.data.string().then(str => {
ok(str, "We have an image data string!");
testResizing(imageData, str);
});
});
});
});
addTest(function testLargeCanvas() {
// Select the canvas node from the test page
gWalker.querySelector(gWalker.rootNode, ".big-vertical").then(canvas => {
ok(canvas, "Image node found in the test page");
ok(canvas.getImageData, "Image node has the getImageData function");
canvas.getImageData(350).then(imageData => {
ok(imageData.data, "Image data actor was sent back");
ok(imageData.size, "Image size info was sent back too");
is(imageData.size.naturalWidth, 1000, "Natural width of the image correct");
is(imageData.size.naturalHeight, 2000, "Natural width of the image correct");
ok(imageData.size.resized, "Image was resized");
imageData.data.string().then(str => {
ok(str, "We have an image data string!");
testResizing(imageData, str);
});
});
});
});
addTest(function testSmallImage() {
// Select the small image node from the test page
gWalker.querySelector(gWalker.rootNode, ".small").then(img => {
ok(img, "Image node found in the test page");
ok(img.getImageData, "Image node has the getImageData function");
img.getImageData().then(imageData => {
ok(imageData.data, "Image data actor was sent back");
ok(imageData.size, "Image size info was sent back too");
is(imageData.size.naturalWidth, 245, "Natural width of the image correct");
is(imageData.size.naturalHeight, 240, "Natural width of the image correct");
ok(!imageData.size.resized, "Image was NOT resized");
imageData.data.string().then(str => {
ok(str, "We have an image data string!");
testResizing(imageData, str);
});
});
});
});
addTest(function testDataImage() {
// Select the data image node from the test page
gWalker.querySelector(gWalker.rootNode, ".data").then(img => {
ok(img, "Image node found in the test page");
ok(img.getImageData, "Image node has the getImageData function");
img.getImageData(14).then(imageData => {
ok(imageData.data, "Image data actor was sent back");
ok(imageData.size, "Image size info was sent back too");
is(imageData.size.naturalWidth, 28, "Natural width of the image correct");
is(imageData.size.naturalHeight, 28, "Natural width of the image correct");
ok(imageData.size.resized, "Image was resized");
imageData.data.string().then(str => {
ok(str, "We have an image data string!");
testResizing(imageData, str);
});
});
});
});
addTest(function testNonImgOrCanvasElements() {
gWalker.querySelector(gWalker.rootNode, "body").then(body => {
ensureRejects(body.getImageData(), "Invalid element").then(runNextTest);
});
});
addTest(function cleanup() {
delete gWalker;
runNextTest();
});
/**
* Checks if the server told the truth about resizing the image
*/
function testResizing(imageData, str) {
let img = document.createElement("img");
img.addEventListener("load", () => {
let resized = !(img.naturalWidth == imageData.size.naturalWidth &&
img.naturalHeight == imageData.size.naturalHeight);
is(imageData.size.resized, resized, "Server told the truth about resizing");
runNextTest();
}, false);
img.src = str;
}
/**
* Asserts that the given promise rejects.
*/
function ensureRejects(promise, desc) {
return promise.then(() => {
ok(false, desc + ": promise resolved unexpectedly.");
}, () => {
ok(true, desc + ": promise rejected as expected.");
});
}
</script>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=932937">Mozilla Bug 932937</a>
<a id="inspectorContent" target="_blank" href="inspector_getImageData.html">Test Document</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
</pre>
</body>
</html>