/*

 * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * 1.  Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer. 

 * 2.  Redistributions in binary form must reproduce the above copyright

 *     notice, this list of conditions and the following disclaimer in the

 *     documentation and/or other materials provided with the distribution. 

 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

 *     its contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission. 

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY

 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 *

 */

#ifndef FileChooser_h

#define FileChooser_h

#include "PlatformString.h"

#include <wtf/Vector.h>

namespace WebCore {

class FileChooser;

class Font;

class Icon;

class FileChooserClient {

public:

    virtual void valueChanged() = 0;

    virtual void repaint() = 0;

    virtual bool allowsMultipleFiles() = 0;

#if ENABLE(DIRECTORY_UPLOAD)

    virtual bool allowsDirectoryUpload() = 0;

#endif

    virtual String acceptTypes() = 0;

    virtual void chooseIconForFiles(FileChooser*, const Vector<String>&) = 0;

    virtual ~FileChooserClient();

};

class FileChooser : public RefCounted<FileChooser> {

public:

    static PassRefPtr<FileChooser> create(FileChooserClient*, const Vector<String>& initialFilenames);

    ~FileChooser();

    void disconnectClient() { m_client = 0; }

    bool disconnected() { return !m_client; }

    const Vector<String>& filenames() const { return m_filenames; }

    String basenameForWidth(const Font&, int width) const;

    Icon* icon() const { return m_icon.get(); }

    void clear(); // for use by client; does not call valueChanged

    void chooseFile(const String& path);

    void chooseFiles(const Vector<String>& paths);

    // Called when FileChooserClient finishes to load an icon requested by iconForFiles().

    void iconLoaded(PassRefPtr<Icon>);

    bool allowsMultipleFiles() const { return m_client ? m_client->allowsMultipleFiles() : false; }

#if ENABLE(DIRECTORY_UPLOAD)

    bool allowsDirectoryUpload() const { return m_client ? m_client->allowsDirectoryUpload() : false; }

#endif

    // Acceptable MIME types.  It's an 'accept' attribute value of the corresponding INPUT element.

    String acceptTypes() const { return m_client ? m_client->acceptTypes() : String(); }

private:

    FileChooser(FileChooserClient*, const Vector<String>& initialFilenames);

    void loadIcon();

    FileChooserClient* m_client;

    Vector<String> m_filenames;

    RefPtr<Icon> m_icon;

    bool m_isInitializing;

};

} // namespace WebCore

#endif // FileChooser_h