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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "config.h" | 5 #include "config.h" |
6 #include "core/rendering/compositing/CompositingReasonFinder.h" | 6 #include "core/rendering/compositing/CompositingReasonFinder.h" |
7 | 7 |
8 #include "core/dom/Document.h" | 8 #include "core/dom/Document.h" |
9 #include "core/frame/FrameView.h" | 9 #include "core/frame/FrameView.h" |
10 #include "core/frame/Settings.h" | 10 #include "core/frame/Settings.h" |
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33 if (settings.compositedScrollingForFramesEnabled()) | 33 if (settings.compositedScrollingForFramesEnabled()) |
34 m_compositingTriggers |= ScrollableInnerFrameTrigger; | 34 m_compositingTriggers |= ScrollableInnerFrameTrigger; |
35 if (settings.acceleratedCompositingForFiltersEnabled()) | 35 if (settings.acceleratedCompositingForFiltersEnabled()) |
36 m_compositingTriggers |= FilterTrigger; | 36 m_compositingTriggers |= FilterTrigger; |
37 | 37 |
38 // We map both these settings to universal overlow scrolling. | 38 // We map both these settings to universal overlow scrolling. |
39 // FIXME: Replace these settings with a generic compositing setting for High
DPI. | 39 // FIXME: Replace these settings with a generic compositing setting for High
DPI. |
40 if (settings.acceleratedCompositingForOverflowScrollEnabled() || settings.co
mpositorDrivenAcceleratedScrollingEnabled()) | 40 if (settings.acceleratedCompositingForOverflowScrollEnabled() || settings.co
mpositorDrivenAcceleratedScrollingEnabled()) |
41 m_compositingTriggers |= OverflowScrollTrigger; | 41 m_compositingTriggers |= OverflowScrollTrigger; |
42 | 42 |
43 // FIXME: acceleratedCompositingForFixedPositionEnabled should be renamed ac
celeratedCompositingForViewportConstrainedPositionEnabled(). | |
44 // Or the sticky and fixed position elements should be behind different flag
s. | |
45 if (settings.acceleratedCompositingForFixedPositionEnabled()) | 43 if (settings.acceleratedCompositingForFixedPositionEnabled()) |
46 m_compositingTriggers |= ViewportConstrainedPositionedTrigger; | 44 m_compositingTriggers |= ViewportConstrainedPositionedTrigger; |
47 } | 45 } |
48 | 46 |
49 bool CompositingReasonFinder::hasOverflowScrollTrigger() const | 47 bool CompositingReasonFinder::hasOverflowScrollTrigger() const |
50 { | 48 { |
51 return m_compositingTriggers & OverflowScrollTrigger; | 49 return m_compositingTriggers & OverflowScrollTrigger; |
52 } | 50 } |
53 | 51 |
54 bool CompositingReasonFinder::isMainFrame() const | 52 bool CompositingReasonFinder::isMainFrame() const |
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256 if (viewportConstrainedNotCompositedReason) | 254 if (viewportConstrainedNotCompositedReason) |
257 *viewportConstrainedNotCompositedReason = RenderLayer::NotCompos
itedForBoundsOutOfView; | 255 *viewportConstrainedNotCompositedReason = RenderLayer::NotCompos
itedForBoundsOutOfView; |
258 return false; | 256 return false; |
259 } | 257 } |
260 } | 258 } |
261 | 259 |
262 return true; | 260 return true; |
263 } | 261 } |
264 | 262 |
265 } | 263 } |
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