Source/platform/scroll/ScrollbarTheme.h - Issue 1093383003: Remove mainthread overhang painting code

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Issue 1093383003: Remove mainthread overhang painting code (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: Created 5 years, 8 months ago

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1 /*	1 /*

2 * Copyright (C) 2008 Apple Inc. All Rights Reserved.	2 * Copyright (C) 2008 Apple Inc. All Rights Reserved.

3 *	3 *

4 * Redistribution and use in source and binary forms, with or without	4 * Redistribution and use in source and binary forms, with or without

5 * modification, are permitted provided that the following conditions	5 * modification, are permitted provided that the following conditions

6 * are met:	6 * are met:

7 * 1. Redistributions of source code must retain the above copyright	7 * 1. Redistributions of source code must retain the above copyright

8 * notice, this list of conditions and the following disclaimer.	8 * notice, this list of conditions and the following disclaimer.

9 * 2. Redistributions in binary form must reproduce the above copyright	9 * 2. Redistributions in binary form must reproduce the above copyright

10 * notice, this list of conditions and the following disclaimer in the	10 * notice, this list of conditions and the following disclaimer in the

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75 if (mask & BackButtonEndPart)	75 if (mask & BackButtonEndPart)

76 invalidatePart(scrollbar, BackButtonEndPart);	76 invalidatePart(scrollbar, BackButtonEndPart);

77 if (mask & ForwardButtonEndPart)	77 if (mask & ForwardButtonEndPart)

78 invalidatePart(scrollbar, ForwardButtonEndPart);	78 invalidatePart(scrollbar, ForwardButtonEndPart);

79 }	79 }

80	80

81 virtual void invalidatePart(ScrollbarThemeClient*, ScrollbarPart);	81 virtual void invalidatePart(ScrollbarThemeClient*, ScrollbarPart);

82	82

83 virtual void paintScrollCorner(GraphicsContext*, const DisplayItemClientWrap per&, const IntRect& cornerRect);	83 virtual void paintScrollCorner(GraphicsContext*, const DisplayItemClientWrap per&, const IntRect& cornerRect);

84 virtual void paintTickmarks(GraphicsContext, ScrollbarThemeClient, const I ntRect&) { }	84 virtual void paintTickmarks(GraphicsContext, ScrollbarThemeClient, const I ntRect&) { }

85 virtual void paintOverhangBackground(GraphicsContext*, const IntRect&, const IntRect&, const IntRect&);

86 virtual void paintOverhangShadows(GraphicsContext*, const IntSize&, const In tRect&, const IntRect&, const IntRect&) { }

87	85

88 virtual bool shouldCenterOnThumb(ScrollbarThemeClient*, const PlatformMouseE vent&);	86 virtual bool shouldCenterOnThumb(ScrollbarThemeClient*, const PlatformMouseE vent&);

89 virtual bool shouldSnapBackToDragOrigin(ScrollbarThemeClient*, const Platfor mMouseEvent&);	87 virtual bool shouldSnapBackToDragOrigin(ScrollbarThemeClient*, const Platfor mMouseEvent&);

90 virtual bool shouldDragDocumentInsteadOfThumb(ScrollbarThemeClient*, const P latformMouseEvent&) { return false; }	88 virtual bool shouldDragDocumentInsteadOfThumb(ScrollbarThemeClient*, const P latformMouseEvent&) { return false; }

91	89

92 // The position of the thumb relative to the track.	90 // The position of the thumb relative to the track.

93 virtual int thumbPosition(ScrollbarThemeClient*);	91 virtual int thumbPosition(ScrollbarThemeClient*);

94 // The length of the thumb along the axis of the scrollbar.	92 // The length of the thumb along the axis of the scrollbar.

95 virtual int thumbLength(ScrollbarThemeClient*);	93 virtual int thumbLength(ScrollbarThemeClient*);

96 // The position of the track relative to the scrollbar.	94 // The position of the track relative to the scrollbar.

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138 static DisplayItem::Type buttonPartToDisplayItemType(ScrollbarPart);	136 static DisplayItem::Type buttonPartToDisplayItemType(ScrollbarPart);

139 static DisplayItem::Type trackPiecePartToDisplayItemType(ScrollbarPart);	137 static DisplayItem::Type trackPiecePartToDisplayItemType(ScrollbarPart);

140	138

141 private:	139 private:

142 static ScrollbarTheme* nativeTheme(); // Must be implemented to return the c orrect theme subclass.	140 static ScrollbarTheme* nativeTheme(); // Must be implemented to return the c orrect theme subclass.

143 static bool gMockScrollbarsEnabled;	141 static bool gMockScrollbarsEnabled;

144 };	142 };

145	143

146 }	144 }

147 #endif	145 #endif

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