1 /* 2 * Copyright (C) 2013 Google 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef ScrollbarThemeMacOverlayAPI_h 32 #define ScrollbarThemeMacOverlayAPI_h 33 34 #include "core/platform/mac/ScrollbarThemeMac.h" 35 36 typedef id ScrollbarPainter; 37 38 namespace WebCore { 39 40 class ScrollbarThemeMacOverlayAPI : public ScrollbarThemeMacCommon { 41 public: 42 virtual void updateEnabledState(ScrollbarThemeClient*) OVERRIDE; 43 virtual int scrollbarThickness(ScrollbarControlSize = RegularScrollbar) OVERRIDE; 44 virtual bool usesOverlayScrollbars() const OVERRIDE; 45 virtual void updateScrollbarOverlayStyle(ScrollbarThemeClient*) OVERRIDE; 46 virtual ScrollbarButtonsPlacement buttonsPlacement() const OVERRIDE; 47 48 virtual void registerScrollbar(ScrollbarThemeClient*) OVERRIDE; 49 virtual void unregisterScrollbar(ScrollbarThemeClient*) OVERRIDE; 50 51 void setNewPainterForScrollbar(ScrollbarThemeClient*, ScrollbarPainter); 52 ScrollbarPainter painterForScrollbar(ScrollbarThemeClient*); 53 54 virtual void paintTrackBackground(GraphicsContext*, ScrollbarThemeClient*, const IntRect&) OVERRIDE; 55 virtual void paintThumb(GraphicsContext*, ScrollbarThemeClient*, const IntRect&) OVERRIDE; 56 57 protected: 58 virtual IntRect trackRect(ScrollbarThemeClient*, bool painting = false) OVERRIDE; 59 virtual IntRect backButtonRect(ScrollbarThemeClient*, ScrollbarPart, bool painting = false) OVERRIDE; 60 virtual IntRect forwardButtonRect(ScrollbarThemeClient*, ScrollbarPart, bool painting = false) OVERRIDE; 61 62 virtual bool hasButtons(ScrollbarThemeClient*) OVERRIDE { return false; } 63 virtual bool hasThumb(ScrollbarThemeClient*) OVERRIDE; 64 65 virtual int minimumThumbLength(ScrollbarThemeClient*) OVERRIDE; 66 }; 67 68 } 69 70 #endif 71
