LayoutTests/compositing/overflow/build-paint-order-list-where-opt-in-decisions-can-affect-each-other.html - Issue 14741004: NOT FOR REVIEW - Update comp-scrolling state at a well defined point in the pipeline.

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Issue 14741004: NOT FOR REVIEW - Update comp-scrolling state at a well defined point in the pipeline. (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: Added annotations describing how this patch will be split. Created 7 years, 7 months ago

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1 <!DOCTYPE html>	1 <!DOCTYPE html>

2	2

3 <html><head>	3 <html><head>

4 <style>	4 <style>

5 .filler {	5 .filler {

6 background-color: #CC9900;	6 background-color: #CC9900;

7 border-style: solid;	7 border-style: solid;

8 border-width: 1px;	8 border-width: 1px;

9 width: 400px;	9 width: 400px;

10 height: 100px;	10 height: 100px;

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107 // first force the element not to promote, then compute its paint and	107 // first force the element not to promote, then compute its paint and

108 // stacking order lists. We then force the element to opt in, and	108 // stacking order lists. We then force the element to opt in, and

109 // generate the paint and stacking order lists after opt-in.	109 // generate the paint and stacking order lists after opt-in.

110 //	110 //

111 // The paint order lists should exactly match the stacking order lists	111 // The paint order lists should exactly match the stacking order lists

112 // (modulo children that fall outside of the hit-testing area	112 // (modulo children that fall outside of the hit-testing area

113 // on-screen), both before and after promotion.	113 // on-screen), both before and after promotion.

114 parentscrollinglayer.style.webkitTransform = 'translateZ(0px)';	114 parentscrollinglayer.style.webkitTransform = 'translateZ(0px)';

115 document.body.offsetTop;	115 document.body.offsetTop;

116	116

117 window.internals.settings.setAcceleratedCompositingForOverflowScrollEnab led(false);	117 // PATCH 1 (and below)

	118 window.internals.setNeedsCompositedScrolling(parentscrollinglayer,

	119 window.internals.FORCE_COMPOSITED_SCROLLING_OFF);

118 parentscrollinglayer.style.webkitTransform = '';	120 parentscrollinglayer.style.webkitTransform = '';

119	121

120 var oldStackingOrder = getStackingOrder();	122 var oldStackingOrder = getStackingOrder();

121 var oldPaintOrder = getPaintOrder(childscrollinglayer);	123 var oldPaintOrder = getPaintOrder(childscrollinglayer);

122	124

123 window.internals.settings.setAcceleratedCompositingForOverflowScrollEnab led(true);	125 window.internals.setNeedsCompositedScrolling(parentscrollinglayer,

	126 window.internals.FORCE_COMPOSITED_SCROLLING_ON);

124 parentscrollinglayer.style.webkitTransform = 'translateZ(0px)';	127 parentscrollinglayer.style.webkitTransform = 'translateZ(0px)';

125	128

126 var newStackingOrder = getStackingOrder();	129 var newStackingOrder = getStackingOrder();

127 var newPaintOrder = getPaintOrder(childscrollinglayer);	130 var newPaintOrder = getPaintOrder(childscrollinglayer);

128	131

129 // The getPaintOrder() function should return a pair of paint orders.	132 // The getPaintOrder() function should return a pair of paint orders.

130 // One before promotion and one after. This pair of lists should remain	133 // One before promotion and one after. This pair of lists should remain

131 // identical whether the element is actually currently promoted or not,	134 // identical whether the element is actually currently promoted or not,

132 // its purpose is to generate hypothetical pre- and post-lists to	135 // its purpose is to generate hypothetical pre- and post-lists to

133 // determine if the element is promotable.	136 // determine if the element is promotable.

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175 <div class="filler"></div>	178 <div class="filler"></div>

176 <div class="filler"></div>	179 <div class="filler"></div>

177 </div>	180 </div>

178 <div id="fillerchild1" class="filler negativechild"></div>	181 <div id="fillerchild1" class="filler negativechild"></div>

179 <div id="fillerchild2" class="filler negativechild"></div>	182 <div id="fillerchild2" class="filler negativechild"></div>

180 <div id="fillerchild3" class="filler negativechild"></div>	183 <div id="fillerchild3" class="filler negativechild"></div>

181 <div id="fillerchild4" class="filler negativechild"></div>	184 <div id="fillerchild4" class="filler negativechild"></div>

182 <pre id="console"></pre>	185 <pre id="console"></pre>

183 </body>	186 </body>

184 </html>	187 </html>

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