third_party/WebKit/Source/core/layout/compositing/CompositingReasonFinder.h - Issue 2839263002: Don't promote position: fixed elements with composited descendants if they don't scroll

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Issue 2839263002: Don't promote position: fixed elements with composited descendants if they don't scroll (Closed)

Patch Set: Also rename the expected file Created 3 years, 7 months ago

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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 #ifndef CompositingReasonFinder_h	5 #ifndef CompositingReasonFinder_h

6 #define CompositingReasonFinder_h	6 #define CompositingReasonFinder_h

7	7

8 #include "core/CoreExport.h"	8 #include "core/CoreExport.h"

9 #include "core/layout/compositing/CompositingTriggers.h"	9 #include "core/layout/compositing/CompositingTriggers.h"

10 #include "platform/graphics/CompositingReasons.h"	10 #include "platform/graphics/CompositingReasons.h"

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38 bool RequiresCompositingForScrollableFrame() const;	38 bool RequiresCompositingForScrollableFrame() const;

39 static bool RequiresCompositingForAnimation(const ComputedStyle&);	39 static bool RequiresCompositingForAnimation(const ComputedStyle&);

40 static bool RequiresCompositingForOpacityAnimation(const ComputedStyle&);	40 static bool RequiresCompositingForOpacityAnimation(const ComputedStyle&);

41 static bool RequiresCompositingForFilterAnimation(const ComputedStyle&);	41 static bool RequiresCompositingForFilterAnimation(const ComputedStyle&);

42 static bool RequiresCompositingForBackdropFilterAnimation(	42 static bool RequiresCompositingForBackdropFilterAnimation(

43 const ComputedStyle&);	43 const ComputedStyle&);

44 static bool RequiresCompositingForEffectAnimation(const ComputedStyle&);	44 static bool RequiresCompositingForEffectAnimation(const ComputedStyle&);

45 static bool RequiresCompositingForTransformAnimation(const ComputedStyle&);	45 static bool RequiresCompositingForTransformAnimation(const ComputedStyle&);

46 static bool RequiresCompositingForTransform(const LayoutObject&);	46 static bool RequiresCompositingForTransform(const LayoutObject&);

47	47

	48 bool RequiresCompositingForScrollDependentPosition(

	49 const PaintLayer*,

	50 bool ignore_lcd_text) const;

	51

48 private:	52 private:

49 bool IsMainFrame() const;	53 bool IsMainFrame() const;

50	54

51 CompositingReasons NonStyleDeterminedDirectReasons(	55 CompositingReasons NonStyleDeterminedDirectReasons(

52 const PaintLayer*,	56 const PaintLayer*,

53 bool ignore_lcd_text) const;	57 bool ignore_lcd_text) const;

54 bool RequiresCompositingForScrollDependentPosition(

55 const PaintLayer*,

56 bool ignore_lcd_text) const;

57

58 LayoutView& layout_view_;	58 LayoutView& layout_view_;

59 CompositingTriggerFlags compositing_triggers_;	59 CompositingTriggerFlags compositing_triggers_;

60 };	60 };

61	61

62 } // namespace blink	62 } // namespace blink

63	63

64 #endif // CompositingReasonFinder_h	64 #endif // CompositingReasonFinder_h

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