1 /* 2 * Copyright (C) 2012 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 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef WebScrollbarThemeGeometryNative_h 27 #define WebScrollbarThemeGeometryNative_h 28 29 #include "platform/PlatformExport.h" 30 #include "public/platform/WebRect.h" 31 #include "public/platform/WebScrollbarThemeGeometry.h" 32 #include "wtf/PassOwnPtr.h" 33 34 namespace blink { 35 36 class ScrollbarTheme; 37 class WebScrollbar; 38 39 class PLATFORM_EXPORT WebScrollbarThemeGeometryNative : public WebScrollbarThemeGeometry { 40 public: 41 static PassOwnPtr<WebScrollbarThemeGeometryNative> create(ScrollbarTheme*); 42 43 // WebScrollbarThemeGeometry overrides 44 virtual WebScrollbarThemeGeometryNative* clone() const OVERRIDE; 45 virtual int thumbPosition(WebScrollbar*) OVERRIDE; 46 virtual int thumbLength(WebScrollbar*) OVERRIDE; 47 virtual int trackPosition(WebScrollbar*) OVERRIDE; 48 virtual int trackLength(WebScrollbar*) OVERRIDE; 49 virtual bool hasButtons(WebScrollbar*) OVERRIDE; 50 virtual bool hasThumb(WebScrollbar*) OVERRIDE; 51 virtual WebRect trackRect(WebScrollbar*) OVERRIDE; 52 virtual WebRect thumbRect(WebScrollbar*) OVERRIDE; 53 virtual int minimumThumbLength(WebScrollbar*) OVERRIDE; 54 virtual int scrollbarThickness(WebScrollbar*) OVERRIDE; 55 virtual WebRect backButtonStartRect(WebScrollbar*) OVERRIDE; 56 virtual WebRect backButtonEndRect(WebScrollbar*) OVERRIDE; 57 virtual WebRect forwardButtonStartRect(WebScrollbar*) OVERRIDE; 58 virtual WebRect forwardButtonEndRect(WebScrollbar*) OVERRIDE; 59 virtual WebRect constrainTrackRectToTrackPieces(WebScrollbar*, const WebRect&) OVERRIDE; 60 virtual void splitTrack(WebScrollbar*, const WebRect& track, WebRect& startTrack, WebRect& thumb, WebRect& endTrack) OVERRIDE; 61 62 private: 63 explicit WebScrollbarThemeGeometryNative(ScrollbarTheme*); 64 65 // The theme is not owned by this class. It is assumed that the theme is a 66 // static pointer and its lifetime is essentially infinite. Only thread-safe 67 // functions on the theme can be called by this theme. 68 ScrollbarTheme* m_theme; 69 }; 70 71 } // namespace blink 72 73 #endif 74
