| Index: tools/perf/page_sets/tough_animation_cases/css_transitions_staggered_triggering_by_inserting_new_element.html
|
| diff --git a/tools/perf/page_sets/tough_animation_cases/css_transitions_staggered_triggering_by_inserting_new_element.html b/tools/perf/page_sets/tough_animation_cases/css_transitions_staggered_triggering_by_inserting_new_element.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..2949fa1362d97b537359c31153a6ad5107bdc426
|
| --- /dev/null
|
| +++ b/tools/perf/page_sets/tough_animation_cases/css_transitions_staggered_triggering_by_inserting_new_element.html
|
| @@ -0,0 +1,61 @@
|
| +<!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>
|
| +show + target {
|
| + opacity: 1;
|
| +}
|
| +hide + target {
|
| + opacity: 0;
|
| +}
|
| +show, hide {
|
| + display: none;
|
| +}
|
| +</style>
|
| +
|
| +<container id="container"></container>
|
| +
|
| +<script>
|
| +var N = PerfTestHelper.getN(1000);
|
| +var duration = 1000;
|
| +var stash = {SHOW: [], HIDE: []};
|
| +var targets = [];
|
| +
|
| +for (var i = 0; i < N; i++) {
|
| + stash.HIDE.push(document.createElement('hide'));
|
| + var show = document.createElement('show');
|
| + container.appendChild(show);
|
| + var target = document.createElement('target');
|
| + container.appendChild(target);
|
| + targets.push(target);
|
| +}
|
| +
|
| +function startTransition(target, fastForward) {
|
| + var state = target.previousSibling;
|
| + stash[state.tagName].push(state);
|
| + state.remove();
|
| + var newState = state.tagName == 'SHOW' ? stash.HIDE.pop() : stash.SHOW.pop();
|
| + container.insertBefore(newState, target);
|
| + target.style.transitionDelay = -fastForward + 'ms';
|
| +}
|
| +
|
| +requestAnimationFrame(function(time) {
|
| + var startTime = time - duration;
|
| + var step = 0;
|
| +
|
| + function staggeredStart(time) {
|
| + var elapsed = time - startTime;
|
| + var targetStep = Math.floor(N * elapsed / duration);
|
| + step = Math.max(targetStep - N, step);
|
| + for (; step < targetStep; step++) {
|
| + startTransition(targets[step % N], elapsed - (step / N * duration));
|
| + }
|
| + requestAnimationFrame(staggeredStart);
|
| + }
|
| + staggeredStart(time);
|
| +});
|
| +
|
| +PerfTestHelper.signalReady();
|
| +</script>
|
|
|
Chromium Code Reviews
Issue 399393002:
Add CSS Transitions performance tests (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src