| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| (async function() { |
| TestRunner.addResult(`Tests the Timeline API instrumentation of a Layout event\n`); |
| await TestRunner.loadModule('performance_test_runner'); |
| await TestRunner.showPanel('timeline'); |
| await TestRunner.loadHTML(` |
| <style> |
| .relayout-boundary { |
| overflow: hidden; |
| width: 100px; |
| height: 100px; |
| position: relative; |
| } |
| </style> |
| <body> |
| <div class="relayout-boundary"> |
| <div>text</div> |
| <div></div> |
| <div> |
| <div id="invalidate1"><div>text</div></div> |
| </div> |
| </div> |
| <div class="relayout-boundary"> |
| <div></div> |
| <div>text</div> |
| <div id="invalidate2"><div>text</div></div> |
| <div></div> |
| <div></div> |
| <div>text</div> |
| </div> |
| </body> |
| `); |
| await TestRunner.evaluateInPagePromise(` |
| function invalidateAndForceLayout(element) |
| { |
| element.style.marginTop = "10px"; |
| var unused = element.offsetHeight; |
| } |
| |
| function performActions() |
| { |
| wrapCallFunctionForTimeline(() => invalidateAndForceLayout(document.getElementById("invalidate1"))); |
| wrapCallFunctionForTimeline(() => invalidateAndForceLayout(document.getElementById("invalidate2"))); |
| } |
| `); |
| |
| PerformanceTestRunner.performActionsAndPrint('performActions()', 'Layout'); |
| })(); |
