1/*
2 * Copyright (C) 2010 Google 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 are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef DirectoryReader_h
32#define DirectoryReader_h
33
34#include "bindings/core/v8/ScriptWrappable.h"
35#include "modules/filesystem/DOMFileSystem.h"
36#include "modules/filesystem/DirectoryReaderBase.h"
37#include "modules/filesystem/EntriesCallback.h"
38#include "platform/heap/Handle.h"
39#include "wtf/text/WTFString.h"
40
41namespace blink {
42
43class ErrorCallback;
44
45class DirectoryReader : public DirectoryReaderBase, public ScriptWrappable {
46    DEFINE_WRAPPERTYPEINFO();
47public:
48    static DirectoryReader* create(DOMFileSystemBase* fileSystem, const String& fullPath)
49    {
50        return new DirectoryReader(fileSystem, fullPath);
51    }
52
53    virtual ~DirectoryReader();
54
55    void readEntries(EntriesCallback*, ErrorCallback* = nullptr);
56
57    DOMFileSystem* filesystem() const { return static_cast<DOMFileSystem*>(m_fileSystem.get()); }
58
59    virtual void trace(Visitor*) OVERRIDE;
60
61private:
62    class EntriesCallbackHelper;
63    class ErrorCallbackHelper;
64
65    DirectoryReader(DOMFileSystemBase*, const String& fullPath);
66
67    void addEntries(const EntryHeapVector& entries);
68
69    void onError(FileError*);
70
71    bool m_isReading;
72    EntryHeapVector m_entries;
73    RefPtrWillBeMember<FileError> m_error;
74    Member<EntriesCallback> m_entriesCallback;
75    Member<ErrorCallback> m_errorCallback;
76};
77
78} // namespace blink
79
80#endif // DirectoryReader_h
81