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1 <!DOCTYPE html> | |
2 <style> | |
3 .container { | |
4 height: 500px; | |
5 width: 300px; | |
6 overflow: scroll; | |
7 } | |
8 | |
9 .scrolled { | |
10 height: 50px; | |
11 width: 100px; | |
12 background: orange; | |
13 margin: 15px; | |
14 transform: translateZ(0); | |
15 } | |
16 </style> | |
17 <script> | |
18 if (window.testRunner) | |
19 testRunner.dumpAsText(); | |
20 | |
21 if (window.internals) | |
22 window.internals.settings.setPreferCompositingToLCDTextEnabled(true); | |
23 | |
24 onload = function() | |
25 { | |
26 var pre = document.getElementById("console"); | |
27 | |
28 pre.innerHTML = ''; | |
29 | |
30 if (window.internals) { | |
31 var layerTreeAsText = internals.layerTreeAsText(document); | |
32 pre.innerHTML += '\n\n*** iteration 1: ***\n\n'; | |
33 pre.innerHTML += layerTreeAsText; | |
34 } | |
35 | |
36 var selection = getSelection(); | |
37 | |
38 var range = document.createRange(); | |
39 range.selectNode(document.getElementById("selection")); | |
40 selection.addRange(range); | |
41 | |
42 if (window.internals) { | |
43 var layerTreeAsText = internals.layerTreeAsText(document); | |
44 pre.innerHTML += '\n\n*** iteration 2: ***\n\n'; | |
45 pre.innerHTML += layerTreeAsText; | |
46 } | |
47 | |
48 selection.removeAllRanges(); | |
49 | |
50 if (window.internals) { | |
51 var layerTreeAsText = internals.layerTreeAsText(document); | |
52 pre.innerHTML += '\n\n*** iteration 3: ***\n\n'; | |
53 pre.innerHTML += layerTreeAsText; | |
54 } | |
55 } | |
56 </script> | |
57 | |
58 This test passes if the container's scrolling contents layer (the first child of
the GraphicsLayer with 4 children) | |
59 doesn't draw content at all, and its scrolling block selection layer (the child
of the scrolling contents layer) | |
60 draws content only on iteration 2. The scrolling block selection layer should al
so be much smaller than the | |
61 scrolling contents layer. | |
62 | |
63 <div class="container"> | |
64 <div class="scrolled">Lorem Ipsum</div> | |
65 <div class="scrolled">Lorem Ipsum</div> | |
66 <div class="scrolled" id="selection">Lorem Ipsum</div> | |
67 <div class="scrolled">Lorem Ipsum</div> | |
68 <div class="scrolled">Lorem Ipsum</div> | |
69 <div class="scrolled">Lorem Ipsum</div> | |
70 <div class="scrolled">Lorem Ipsum</div> | |
71 <div class="scrolled">Lorem Ipsum</div> | |
72 <div class="scrolled">Lorem Ipsum</div> | |
73 <div class="scrolled">Lorem Ipsum</div> | |
74 </div> | |
75 <pre id="console"></pre> | |
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