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 WebFileUtilities_h
32#define WebFileUtilities_h
33
34#include "WebCommon.h"
35#include "WebString.h"
36#include "WebURL.h"
37
38#ifdef WIN32
39typedef void *HANDLE;
40#endif
41
42namespace WebKit {
43
44class WebFileUtilities {
45public:
46#ifdef WIN32
47    typedef HANDLE FileHandle;
48#else
49    typedef int FileHandle;
50#endif
51    virtual void revealFolderInOS(const WebString& path) { }
52    virtual bool fileExists(const WebString& path) { return false; }
53    virtual bool deleteFile(const WebString& path) { return false; }
54    virtual bool deleteEmptyDirectory(const WebString& path) { return false; }
55    virtual bool getFileSize(const WebString& path, long long& result) { return false; }
56    virtual bool getFileModificationTime(const WebString& path, double& result) { return false; }
57    virtual WebString directoryName(const WebString& path)  { return WebString(); }
58    virtual WebString pathByAppendingComponent(const WebString& path, const WebString& component)  { return WebString(); }
59    virtual bool makeAllDirectories(const WebString& path) { return false; }
60    virtual WebString getAbsolutePath(const WebString& path)  { return WebString(); }
61    virtual bool isDirectory(const WebString& path) { return false; }
62    virtual WebURL filePathToURL(const WebString& path)  { return WebURL(); }
63    virtual FileHandle openFile(const WebString& path, int mode)  { return FileHandle(); }
64    // Should set the FileHandle to a invalid value if the file is closed successfully.
65    virtual void closeFile(FileHandle&) { }
66    virtual long long seekFile(FileHandle, long long offset, int origin) { return 0; }
67    virtual bool truncateFile(FileHandle, long long offset) { return false; }
68    virtual int readFromFile(FileHandle, char* data, int length) { return 0; }
69    virtual int writeToFile(FileHandle, const char* data, int length) { return 0; }
70
71protected:
72    ~WebFileUtilities() {}
73};
74
75} // namespace WebKit
76
77#endif
78