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1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
2 <html> | 2 <html> |
3 <head> | 3 <head> |
4 <script src="../../resources/run-after-display.js"></script> | 4 <script src="../../resources/run-after-display.js"></script> |
5 <style> | 5 <style> |
6 | 6 |
7 #backgroundFixed { | 7 #backgroundFixed { |
8 transform: translatez(0); | 8 transform: translatez(0); |
9 position: fixed; | 9 position: fixed; |
10 height: 400px; | 10 height: 400px; |
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58 } | 58 } |
59 | 59 |
60 </style> | 60 </style> |
61 | 61 |
62 <script> | 62 <script> |
63 if (window.testRunner) { | 63 if (window.testRunner) { |
64 testRunner.dumpAsText(); | 64 testRunner.dumpAsText(); |
65 testRunner.waitUntilDone(); | 65 testRunner.waitUntilDone(); |
66 } | 66 } |
67 | 67 |
68 if (window.internals) | |
69 internals.settings.setLayerSquashingEnabled(true); | |
70 | |
71 function runTest() | 68 function runTest() |
72 { | 69 { |
73 if (!window.internals) | 70 if (!window.internals) |
74 return; | 71 return; |
75 | 72 |
76 // Case 1 | 73 // Case 1 |
77 document.getElementById('Case1').textContent = window.internals.layerTre
eAsText(document, internals.LAYER_TREE_INCLUDES_REPAINT_RECTS); | 74 document.getElementById('Case1').textContent = window.internals.layerTre
eAsText(document, internals.LAYER_TREE_INCLUDES_REPAINT_RECTS); |
78 | 75 |
79 // Case 2 | 76 // Case 2 |
80 window.internals.startTrackingRepaints(document); | 77 window.internals.startTrackingRepaints(document); |
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123 CASE 1, original layer tree: | 120 CASE 1, original layer tree: |
124 <pre id="Case1"></pre> | 121 <pre id="Case1"></pre> |
125 | 122 |
126 CASE 2, scrolling y by 10 pixels, both the "container" and "inner" should sc
roll properly. | 123 CASE 2, scrolling y by 10 pixels, both the "container" and "inner" should sc
roll properly. |
127 <pre id="Case2"></pre> | 124 <pre id="Case2"></pre> |
128 | 125 |
129 CASE 3, scrolling y further so that "inner" no longer overlaps the fixed-pos
layer, then the stacking context of "container" includes the "innerScrolling" l
ayer, and doubles in width: | 126 CASE 3, scrolling y further so that "inner" no longer overlaps the fixed-pos
layer, then the stacking context of "container" includes the "innerScrolling" l
ayer, and doubles in width: |
130 <pre id="Case3"></pre> | 127 <pre id="Case3"></pre> |
131 </div> | 128 </div> |
132 </body> | 129 </body> |
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