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 
disconnectClient()60     void disconnectClient() { m_client = 0; }
disconnected()61     bool disconnected() { return !m_client; }
62 
filenames()63     const Vector<String>& filenames() const { return m_filenames; }
64     String basenameForWidth(const Font&, int width) const;
65 
icon()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 
allowsMultipleFiles()75     bool allowsMultipleFiles() const { return m_client ? m_client->allowsMultipleFiles() : false; }
76 #if ENABLE(DIRECTORY_UPLOAD)
allowsDirectoryUpload()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.
acceptTypes()80     String acceptTypes() const { return m_client ? m_client->acceptTypes() : String(); }
81 
82 private:
83     FileChooser(FileChooserClient*, const Vector<String>& initialFilenames);
84     void initialize();
85     void loadIcon();
86 
87     FileChooserClient* m_client;
88     Vector<String> m_filenames;
89     RefPtr<Icon> m_icon;
90     bool m_isInitializing;
91 };
92 
93 } // namespace WebCore
94 
95 #endif // FileChooser_h
96