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| 1 <!-- Based on fast/repaint/padding-keeping-visual-size.html --> | |
| 2 <!DOCTYPE HTML> | |
| 3 <script src="resources/paint-invalidation-test.js"></script> | |
| 4 <script> | |
| 5 function paintInvalidationTest() | |
| 6 { | |
| 7 // No visual change. Optimally, there should be no repaint. | |
| 8 var target1 = document.getElementById('target1'); | |
| 9 target1.style.padding = '20px'; | |
| 10 target1.style.width = '60px'; | |
| 11 target1.style.height = '60px'; | |
| 12 | |
| 13 // Content will shrink. Should repaint at least the content. | |
| 14 var target2 = document.getElementById('target2'); | |
| 15 target2.style.padding = '20px'; | |
| 16 target2.style.width = '60px'; | |
| 17 target2.style.height = '60px'; | |
| 18 } | |
| 19 window.onload = runPaintInvalidationTest; | |
| 20 </script> | |
| 21 <style> | |
| 22 body { | |
| 23 margin: 0; | |
| 24 } | |
| 25 .outer { | |
| 26 width: 100px; | |
| 27 height: 100px; | |
| 28 position: absolute; | |
| 29 background-color: green; | |
| 30 } | |
| 31 #target2 { | |
| 32 top: 200px; | |
| 33 } | |
| 34 .inner { | |
| 35 width: 100%; | |
| 36 height: 100%; | |
| 37 background-color: yellow; | |
| 38 } | |
| 39 </style> | |
| 40 <div id="target1" class="outer"></div> | |
| 41 <div id="target2" class="outer"><div class="inner"></div></div> | |
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