| Index: tools/perf/page_sets/perf_week/css-transitions-staggered-triggering-by-inserting-new-element.html
|
| diff --git a/tools/perf/page_sets/perf_week/css-transitions-staggered-triggering-by-inserting-new-element.html b/tools/perf/page_sets/perf_week/css-transitions-staggered-triggering-by-inserting-new-element.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..02b818ed195a77a0c8ed7e4d977faf125f087af6
|
| --- /dev/null
|
| +++ b/tools/perf/page_sets/perf_week/css-transitions-staggered-triggering-by-inserting-new-element.html
|
| @@ -0,0 +1,73 @@
|
| +<!doctype html>
|
| +<meta name="viewport" content="width=device-width, user-scalable=no">
|
| +<container id="container"></container>
|
| +<script>
|
| +var N = 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) {
|
| + window.measurementReady = true;
|
| + 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);
|
| +});
|
| +</script>
|
| +
|
| +<style>
|
| +body {
|
| + margin: 0;
|
| + overflow: hidden;
|
| +}
|
| +container {
|
| + display: flex;
|
| + flex-flow: row wrap;
|
| + width: 550px;
|
| + height: 800px;
|
| + background: lightgoldenrodyellow;
|
| +}
|
| +target {
|
| + display: inline-block;
|
| + width: 9px; height: 9px;
|
| + background: magenta;
|
| + transition: opacity 1000ms linear;
|
| +}
|
| +show + target {
|
| + opacity: 1;
|
| +}
|
| +hide + target {
|
| + opacity: 0;
|
| +}
|
| +show, hide {
|
| + display: none;
|
| +}
|
| +</style>
|
|
|
Chromium Code Reviews
Issue 402433004:
Test adding perf week tests as smoothness benchmark (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src