1 /* 2 * Copyright (C) 2008 Apple Inc. All Rights Reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef RenderScrollbarTheme_h 27 #define RenderScrollbarTheme_h 28 29 #include "core/platform/ScrollbarTheme.h" 30 31 namespace WebCore { 32 33 class PlatformMouseEvent; 34 class Scrollbar; 35 class ScrollView; 36 37 class RenderScrollbarTheme : public ScrollbarTheme { 38 public: 39 virtual ~RenderScrollbarTheme() { } 40 41 virtual int scrollbarThickness(ScrollbarControlSize controlSize) OVERRIDE { return ScrollbarTheme::theme()->scrollbarThickness(controlSize); } 42 43 virtual ScrollbarButtonsPlacement buttonsPlacement() const OVERRIDE { return ScrollbarTheme::theme()->buttonsPlacement(); } 44 45 virtual bool supportsControlTints() const OVERRIDE { return true; } 46 47 virtual void paintScrollCorner(ScrollView*, GraphicsContext*, const IntRect& cornerRect) OVERRIDE; 48 49 virtual bool shouldCenterOnThumb(ScrollbarThemeClient* scrollbar, const PlatformMouseEvent& event) OVERRIDE { return ScrollbarTheme::theme()->shouldCenterOnThumb(scrollbar, event); } 50 51 virtual double initialAutoscrollTimerDelay() OVERRIDE { return ScrollbarTheme::theme()->initialAutoscrollTimerDelay(); } 52 virtual double autoscrollTimerDelay() OVERRIDE { return ScrollbarTheme::theme()->autoscrollTimerDelay(); } 53 54 virtual void registerScrollbar(ScrollbarThemeClient* scrollbar) OVERRIDE { return ScrollbarTheme::theme()->registerScrollbar(scrollbar); } 55 virtual void unregisterScrollbar(ScrollbarThemeClient* scrollbar) OVERRIDE { return ScrollbarTheme::theme()->unregisterScrollbar(scrollbar); } 56 57 virtual int minimumThumbLength(ScrollbarThemeClient*) OVERRIDE; 58 59 void buttonSizesAlongTrackAxis(ScrollbarThemeClient*, int& beforeSize, int& afterSize); 60 61 static RenderScrollbarTheme* renderScrollbarTheme(); 62 63 protected: 64 virtual bool hasButtons(ScrollbarThemeClient*) OVERRIDE; 65 virtual bool hasThumb(ScrollbarThemeClient*) OVERRIDE; 66 67 virtual IntRect backButtonRect(ScrollbarThemeClient*, ScrollbarPart, bool painting = false) OVERRIDE; 68 virtual IntRect forwardButtonRect(ScrollbarThemeClient*, ScrollbarPart, bool painting = false) OVERRIDE; 69 virtual IntRect trackRect(ScrollbarThemeClient*, bool painting = false) OVERRIDE; 70 71 virtual void paintScrollbarBackground(GraphicsContext*, ScrollbarThemeClient*) OVERRIDE; 72 virtual void paintTrackBackground(GraphicsContext*, ScrollbarThemeClient*, const IntRect&) OVERRIDE; 73 virtual void paintTrackPiece(GraphicsContext*, ScrollbarThemeClient*, const IntRect&, ScrollbarPart) OVERRIDE; 74 virtual void paintButton(GraphicsContext*, ScrollbarThemeClient*, const IntRect&, ScrollbarPart) OVERRIDE; 75 virtual void paintThumb(GraphicsContext*, ScrollbarThemeClient*, const IntRect&) OVERRIDE; 76 virtual void paintTickmarks(GraphicsContext*, ScrollbarThemeClient*, const IntRect&) OVERRIDE; 77 78 virtual IntRect constrainTrackRectToTrackPieces(ScrollbarThemeClient*, const IntRect&) OVERRIDE; 79 }; 80 81 } // namespace WebCore 82 83 #endif // RenderScrollbarTheme_h 84
