1 /*

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

     3  *

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

     5  * modification, are permitted provided that the following conditions

     6  * are met:

     7  *

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

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

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

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

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

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

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

    15  *     from this software without specific prior written permission. 

    16  *

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

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

    19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

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

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

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

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

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

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

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

    27  *

    28  */

    29 

    30 #ifndef FileChooser_h

    31 #define FileChooser_h

    32 

    33 #include "PlatformString.h"

    34 #include <wtf/Vector.h>

    35 

    36 namespace WebCore {

    37 

    38 class FileChooser;

    39 class Font;

    40 class Icon;

    41 

    42 class FileChooserClient {

    43 public:

    44     virtual void valueChanged() = 0;

    45     virtual void repaint() = 0;

    46     virtual bool allowsMultipleFiles() = 0;

    47 #if ENABLE(DIRECTORY_UPLOAD)

    48     virtual bool allowsDirectoryUpload() = 0;

    49 #endif

    50     virtual String acceptTypes() = 0;

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

    52     virtual ~FileChooserClient();

    53 };

    54 

    55 class FileChooser : public RefCounted<FileChooser> {

    56 public:

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

    58     ~FileChooser();

    59 

    60     void disconnectClient() { m_client = 0; }

    61     bool disconnected() { return !m_client; }

    62 

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

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

    65 

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

    67 

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

    69 

    70     void chooseFile(const String& path);

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

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

    73     void iconLoaded(PassRefPtr<Icon>);

    74 

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

    76 #if ENABLE(DIRECTORY_UPLOAD)

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

    78 #endif

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

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

    81 

    82 private:

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

    84     void loadIcon();

    85 

    86     FileChooserClient* m_client;

    87     Vector<String> m_filenames;

    88     RefPtr<Icon> m_icon;

    89     bool m_isInitializing;

    90 };

    91 

    92 } // namespace WebCore

    93 

    94 #endif // FileChooser_h