WebCore/RenderButton.h

   1 /*
   2  * This file is part of the html renderer for KDE.
   3  *
   4  * Copyright (C) 2005 Apple Computer
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Library General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Library General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Library General Public License
  17  * along with this library; see the file COPYING.LIB.  If not, write to
  18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19  * Boston, MA 02110-1301, USA.
  20  *
  21  */
  22
  23 #ifndef RenderButton_h
  24 #define RenderButton_h
  25
  26 #include "RenderFlexibleBox.h"
  27 #include "Timer.h"
  28 #include <wtf/OwnPtr.h>
  29
  30 namespace WebCore {
  31
  32 class RenderTextFragment;
  33
  34 // RenderButtons are just like normal flexboxes except that they will generate an anonymous block child.
  35 // For inputs, they will also generate an anonymous RenderText and keep its style and content up
  36 // to date as the button changes.
  37 class RenderButton : public RenderFlexibleBox {
  38 public:
  39     RenderButton(Node*);
  40
  41     virtual const char* renderName() const { return "RenderButton"; }
  42
  43     virtual void addChild(RenderObject* newChild, RenderObject *beforeChild = 0);
  44     virtual void removeChild(RenderObject*);
  45     virtual void removeLeftoverAnonymousBlock(RenderBlock*) { }
  46     virtual bool createsAnonymousWrapper() const { return true; }
  47
  48     void setupInnerStyle(RenderStyle*);
  49     virtual void updateFromElement();
  50
  51     virtual void updateBeforeAfterContent(RenderStyle::PseudoId);
  52
  53     virtual bool hasControlClip() const { return true; }
  54     virtual IntRect controlClipRect(int /*tx*/, int /*ty*/) const;
  55
  56     void setText(const String&);
  57
  58     virtual bool canHaveChildren() const;
  59
  60     virtual void layout();
  61
  62 protected:
  63     virtual void styleWillChange(StyleDifference, const RenderStyle* newStyle);
  64     virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
  65
  66     virtual bool hasLineIfEmpty() const { return true; }
  67
  68     void timerFired(Timer<RenderButton>*);
  69
  70     RenderTextFragment* m_buttonText;
  71     RenderBlock* m_inner;
  72
  73     OwnPtr<Timer<RenderButton> > m_timer;
  74     bool m_default;
  75 };
  76
  77 } // namespace WebCore
  78
  79 #endif // RenderButton_h