1 /** 2 * 3 * Copyright (C) 2006 Apple Computer, Inc. 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; see the file COPYING.LIB. If not, write to 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 * 20 */ 21 22 #ifndef RenderSlider_h 23 #define RenderSlider_h 24 25 #include "RenderBlock.h" 26 27 namespace WebCore { 28 29 class HTMLDivElement; 30 class HTMLInputElement; 31 class HTMLSliderThumbElement; 32 class MouseEvent; 33 34 class RenderSlider : public RenderBlock { 35 public: 36 RenderSlider(HTMLInputElement*); 37 ~RenderSlider(); 38 renderName()39 virtual const char* renderName() const { return "RenderSlider"; } isSlider()40 virtual bool isSlider() const { return true; } 41 42 virtual int baselinePosition( bool, bool ) const; 43 virtual void calcPrefWidths(); 44 virtual void layout(); 45 virtual void updateFromElement(); 46 47 virtual bool mouseEventIsInThumb(MouseEvent*); 48 49 void setValueForPosition(int position); 50 double setPositionFromValue(bool inLayout = false); 51 int positionForOffset(const IntPoint&); 52 53 void valueChanged(); 54 55 int currentPosition(); 56 void setCurrentPosition(int pos); 57 58 void forwardEvent(Event*); 59 bool inDragMode() const; 60 61 protected: 62 virtual void styleDidChange(RenderStyle::Diff, const RenderStyle* oldStyle); 63 64 private: 65 PassRefPtr<RenderStyle> createThumbStyle(const RenderStyle* parentStyle, const RenderStyle* oldStyle = 0); 66 int trackSize(); 67 68 RefPtr<HTMLSliderThumbElement> m_thumb; 69 }; 70 71 } // namespace WebCore 72 73 #endif // RenderSlider_h 74