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      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 #if PLATFORM(ANDROID) && ENABLE(MEDIA_CAPTURE)
     54     virtual String capture() = 0;
     55 #endif
     56 };
     57 
     58 class FileChooser : public RefCounted<FileChooser> {
     59 public:
     60     static PassRefPtr<FileChooser> create(FileChooserClient*, const Vector<String>& initialFilenames);
     61     ~FileChooser();
     62 
     63     void disconnectClient() { m_client = 0; }
     64     bool disconnected() { return !m_client; }
     65 
     66     const Vector<String>& filenames() const { return m_filenames; }
     67     String basenameForWidth(const Font&, int width) const;
     68 
     69     Icon* icon() const { return m_icon.get(); }
     70 
     71     void clear(); // for use by client; does not call valueChanged
     72 
     73     void chooseFile(const String& path);
     74     void chooseFiles(const Vector<String>& paths);
     75     // Called when FileChooserClient finishes to load an icon requested by iconForFiles().
     76     void iconLoaded(PassRefPtr<Icon>);
     77 
     78     bool allowsMultipleFiles() const { return m_client ? m_client->allowsMultipleFiles() : false; }
     79 #if ENABLE(DIRECTORY_UPLOAD)
     80     bool allowsDirectoryUpload() const { return m_client ? m_client->allowsDirectoryUpload() : false; }
     81 #endif
     82     // Acceptable MIME types.  It's an 'accept' attribute value of the corresponding INPUT element.
     83     String acceptTypes() const { return m_client ? m_client->acceptTypes() : String(); }
     84 
     85 #if PLATFORM(ANDROID) && ENABLE(MEDIA_CAPTURE)
     86     String capture() const { return m_client ? m_client->capture() : String(); }
     87 #endif
     88 
     89 private:
     90     FileChooser(FileChooserClient*, const Vector<String>& initialFilenames);
     91     void initialize();
     92     void loadIcon();
     93 
     94     FileChooserClient* m_client;
     95     Vector<String> m_filenames;
     96     RefPtr<Icon> m_icon;
     97     bool m_isInitializing;
     98 };
     99 
    100 } // namespace WebCore
    101 
    102 #endif // FileChooser_h
    103