WebCore/RenderFileUploadControl.h

   1 /*
   2  * Copyright (C) 2006, 2007 Apple Inc.
   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 RenderFileUploadControl_h
  22 #define RenderFileUploadControl_h
  23
  24 #include "RenderBlock.h"
  25
  26 namespace WebCore {
  27
  28 class HTMLInputElement;
  29
  30 // Each RenderFileUploadControl contains a RenderButton (for opening the file chooser), and
  31 // sufficient space to draw a file icon and filename. The RenderButton has a shadow node
  32 // associated with it to receive click/hover events.
  33
  34 class RenderFileUploadControl : public RenderBlock {
  35 public:
  36     RenderFileUploadControl(HTMLInputElement*);
  37     ~RenderFileUploadControl();
  38
  39     virtual const char* renderName() const { return "RenderFileUploadControl"; }
  40
  41     virtual void updateFromElement();
  42     virtual void calcPrefWidths();
  43     virtual void paintObject(PaintInfo&, int tx, int ty);
  44
  45     void click();
  46
  47     void valueChanged();
  48
  49
  50     String buttonValue();
  51     String fileTextValue();
  52
  53     bool allowsMultipleFiles();
  54
  55 protected:
  56     virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
  57
  58 private:
  59     int maxFilenameWidth() const;
  60     PassRefPtr<RenderStyle> createButtonStyle(const RenderStyle* parentStyle) const;
  61
  62     RefPtr<HTMLInputElement> m_button;
  63 };
  64
  65 } // namespace WebCore
  66
  67 #endif // RenderFileUploadControl_h