blob: d3c7b3466bc7e2dc0236cff8cbc495c868615d9a [file] [log] [blame]
<!DOCTYPE html>
<html>
<meta name="fuzzy" content="maxDifference=0-1;totalPixels=28600-29000" />
<style>
.box {
height: 50px;
display: inline-block;
zoom: 2;
image-rendering: crisp-edges;
}
.green-box {
width: 100px;
background-position: -50px -16500px;
}
.repeat-box {
width: 400px;
background-position: 0px -16500px;
background-repeat: repeat-x;
}
.image-background {
}
</style>
<body>
<div class="box green-box image-background"></div>
<br>
<div class="box repeat-box image-background"></div>
<script>
function setElementImageBackground(element, image) {
return new Promise((resolve) => {
element.style.backgroundImage = 'url(' + image.src + ')';
// Force layout and display so the image frame starts decoding.
document.body.offsetHeight;
testRunner.display();
element.addEventListener("webkitImageFrameReady", function() {
resolve();
}, false);
});
}
(function() {
if (window.internals && window.testRunner) {
internals.clearMemoryCache();
internals.settings.setWebkitImageReadyEventEnabled(true);
internals.settings.setLargeImageAsyncDecodingEnabled(true);
testRunner.waitUntilDone();
}
var image = new Image();
image.onload = function() {
// Force async image decoding for this image.
if (window.internals)
internals.setLargeImageAsyncDecodingEnabledForTesting(image, true);
// Change the background of the elements.
var elements = document.getElementsByClassName("image-background");
if (window.internals && window.testRunner) {
var promises = [];
for (var index = 0; index < elements.length; ++index)
promises.push(setElementImageBackground(elements[index], image));
Promise.all(promises).then(() => {
// Ensure internals.destroyDecodedDataForAllImages() will not destroy
// the images' decoded data because it is inside the viewport.
internals.destroyDecodedDataForAllImages();
testRunner.notifyDone();
});
} else {
for (var index = 0; index < elements.length; ++index)
elements[index].style.backgroundImage = 'url(' + image.src + ')';
}
}
image.src = "resources/sprite-sheet-red-green-blue.png";
})();
</script>
</body>
</html>