/*

 * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public License

 * along with this library; see the file COPYING.LIB.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 *

 */

#ifndef RenderFileUploadControl_h

#define RenderFileUploadControl_h

#include "FileChooser.h"

#include "RenderBlock.h"

namespace WebCore {

class Chrome;

class HTMLInputElement;

// Each RenderFileUploadControl contains a RenderButton (for opening the file chooser), and

// sufficient space to draw a file icon and filename. The RenderButton has a shadow node

// associated with it to receive click/hover events.

class RenderFileUploadControl : public RenderBlock, private FileChooserClient {

public:

    RenderFileUploadControl(HTMLInputElement*);

    virtual ~RenderFileUploadControl();

    virtual bool isFileUploadControl() const { return true; }

    void click();

    void receiveDroppedFiles(const Vector<String>&);

    String buttonValue();

    String fileTextValue() const;

private:

    virtual const char* renderName() const { return "RenderFileUploadControl"; }

    virtual void updateFromElement();

    virtual void calcPrefWidths();

    virtual void paintObject(PaintInfo&, int tx, int ty);

    virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);

    virtual bool requiresForcedStyleRecalcPropagation() const { return true; }

    // FileChooserClient methods.

    void valueChanged();

    void repaint() { RenderBlock::repaint(); }

    bool allowsMultipleFiles();

#if ENABLE(DIRECTORY_UPLOAD)

    bool allowsDirectoryUpload();

#endif

    String acceptTypes();

    void chooseIconForFiles(FileChooser*, const Vector<String>&);

    Chrome* chrome() const;

    int maxFilenameWidth() const;

    PassRefPtr<RenderStyle> createButtonStyle(const RenderStyle* parentStyle) const;

    RefPtr<HTMLInputElement> m_button;

    RefPtr<FileChooser> m_fileChooser;

};

inline RenderFileUploadControl* toRenderFileUploadControl(RenderObject* object)

{

    ASSERT(!object || object->isFileUploadControl());

    return static_cast<RenderFileUploadControl*>(object);

}

inline const RenderFileUploadControl* toRenderFileUploadControl(const RenderObject* object)

{

    ASSERT(!object || object->isFileUploadControl());

    return static_cast<const RenderFileUploadControl*>(object);

}

// This will catch anyone doing an unnecessary cast.

void toRenderFileUploadControl(const RenderFileUploadControl*);

} // namespace WebCore

#endif // RenderFileUploadControl_h