| Index: tools/perf/page_sets/tough_animation_cases/css_transitions_staggered_chaining_by_inserting_style_element.html
|
| diff --git a/tools/perf/page_sets/tough_animation_cases/css_transitions_staggered_chaining_by_inserting_style_element.html b/tools/perf/page_sets/tough_animation_cases/css_transitions_staggered_chaining_by_inserting_style_element.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..997fae6078fd48d646ca2170c26ce8b82bfa2d92
|
| --- /dev/null
|
| +++ b/tools/perf/page_sets/tough_animation_cases/css_transitions_staggered_chaining_by_inserting_style_element.html
|
| @@ -0,0 +1,55 @@
|
| +<!DOCTYPE html>
|
| +<meta name="viewport" content="width=device-width, user-scalable=no">
|
| +<link rel="stylesheet" type="text/css" href="resources/tablet.css">
|
| +<link rel="stylesheet" type="text/css" href="resources/transition.css">
|
| +<script src="resources/perftesthelper.js"></script>
|
| +<style>
|
| +target {
|
| + opacity: 0;
|
| +}
|
| +</style>
|
| +
|
| +<container id="container"></container>
|
| +
|
| +<script>
|
| +var N = PerfTestHelper.getN(500);
|
| +var duration = 1000;
|
| +var keyframeValues = [0, 1];
|
| +var id = 0;
|
| +
|
| +for (var i = 0; i < N; i++) {
|
| + var target = document.createElement('target');
|
| + target._keyframe = 0;
|
| + target.style.transitionDelay = (-i / N * duration) + 'ms';
|
| + container.appendChild(target);
|
| + target.addEventListener('transitionend', restartTransition);
|
| +}
|
| +
|
| +function restartTransition(event) {
|
| + event.target._keyframe ^= 1;
|
| + addNewIDStyle(event.target);
|
| + event.target.style.removeProperty('transition-delay');
|
| +}
|
| +
|
| +function addNewIDStyle(target) {
|
| + id++;
|
| + if (target._currentIDStyle) {
|
| + target._currentIDStyle.remove();
|
| + }
|
| + var style = document.createElement('style');
|
| + style.textContent = '#id' + id + ' { opacity: ' + keyframeValues[target._keyframe] + ';}';
|
| + container.appendChild(style);
|
| + target.id = 'id' + id;
|
| + target._currentIDStyle = style;
|
| +}
|
| +
|
| +requestAnimationFrame(function() {
|
| + var styleRule = document.styleSheets[2].rules[0].style;
|
| + styleRule.opacity = keyframeValues[1];
|
| + requestAnimationFrame(function() {
|
| + styleRule.opacity = keyframeValues[0];
|
| + });
|
| +});
|
| +
|
| +PerfTestHelper.signalReady();
|
| +</script>
|
|
|
Chromium Code Reviews
Issue 399393002:
Add CSS Transitions performance tests (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src