| <!DOCTYPE html> |
| <html> |
| <head> |
| <style> |
| .shouldComposite { |
| width: 30px; |
| height: 30px; |
| margin: 4px; |
| background-color: green; |
| } |
| |
| .shouldNotComposite { |
| width: 30px; |
| height: 30px; |
| margin: 4px; |
| background-color: red; |
| } |
| |
| .positioned { |
| position: relative; |
| } |
| |
| #willChangeAuto { |
| will-change: auto; |
| } |
| |
| #willChangeOpacity { |
| will-change: opacity; |
| } |
| |
| #willChangeTransform { |
| will-change: -webkit-transform; |
| } |
| |
| #willChangeLeft { |
| will-change: left; |
| } |
| |
| #willChangeRight { |
| will-change: right; |
| } |
| |
| #willChangeTop { |
| will-change: top; |
| } |
| |
| #willChangeBottom { |
| will-change: bottom; |
| } |
| |
| #willChangeFilter { |
| will-change: -webkit-filter; |
| } |
| |
| #willChangeBackdropFilter { |
| will-change: backdrop-filter; |
| } |
| |
| #willChangeCombinationThatComposites { |
| will-change: transition, -webkit-animation, opacity, z-index; |
| } |
| |
| #willChangeZIndex { |
| will-change: z-index; |
| } |
| </style> |
| |
| <script> |
| window.addEventListener('load', function() { |
| if (window.testRunner) { |
| document.getElementById("layertree").innerText = internals.layerTreeAsText(document); |
| testRunner.dumpAsText(); |
| } |
| }, false); |
| </script> |
| </head> |
| <body> |
| <div id="willChangeAuto" class="shouldNotComposite"></div> |
| <div id="willChangeOpacity" class="shouldComposite"></div> |
| <div id="willChangeTransform" class="shouldComposite"></div> |
| <div id="willChangeLeft" class="shouldNotComposite"></div> |
| <div id="willChangeLeft" class="positioned shouldComposite"></div> |
| <div id="willChangeRight" class="shouldNotComposite"></div> |
| <div id="willChangeRight" class="positioned shouldComposite"></div> |
| <div id="willChangeTop" class="shouldNotComposite"></div> |
| <div id="willChangeTop" class="positioned shouldComposite"></div> |
| <div id="willChangeBottom" class="shouldNotComposite"></div> |
| <div id="willChangeBottom" class="positioned shouldComposite"></div> |
| <div id="willChangeFilter" class="shouldComposite"></div> |
| <div id="willChangeBackdropFilter" class="shouldComposite"></div> |
| <div id="willChangeCombinationThatComposites" class="shouldComposite"></div> |
| <div id="willChangeZIndex" class="shouldNotComposite"></div> |
| |
| <pre id="layertree"></pre> |
| </body> |
| </html> |
