1 /* 2 * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 * 19 */ 20 21 #ifndef RenderSlider_h 22 #define RenderSlider_h 23 24 #include "core/rendering/RenderFlexibleBox.h" 25 26 namespace WebCore { 27 28 class HTMLInputElement; 29 class MouseEvent; 30 class SliderThumbElement; 31 32 class RenderSlider FINAL : public RenderFlexibleBox { 33 public: 34 static const int defaultTrackLength; 35 36 explicit RenderSlider(HTMLInputElement*); 37 virtual ~RenderSlider(); 38 39 bool inDragMode() const; 40 41 private: 42 virtual const char* renderName() const { return "RenderSlider"; } 43 virtual bool isSlider() const { return true; } 44 virtual bool canBeReplacedWithInlineRunIn() const OVERRIDE; 45 46 virtual int baselinePosition(FontBaseline, bool firstLine, LineDirectionMode, LinePositionMode = PositionOnContainingLine) const; 47 virtual void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const OVERRIDE; 48 virtual void computePreferredLogicalWidths() OVERRIDE; 49 virtual bool requiresForcedStyleRecalcPropagation() const { return true; } 50 virtual void layout(); 51 }; 52 53 inline RenderSlider* toRenderSlider(RenderObject* object) 54 { 55 ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isSlider()); 56 return static_cast<RenderSlider*>(object); 57 } 58 59 // This will catch anyone doing an unnecessary cast. 60 void toRenderSlider(const RenderSlider*); 61 62 } // namespace WebCore 63 64 #endif // RenderSlider_h 65