1/*
2 * Copyright (C) 2007 Staikos Computing Services Inc.
3 * Copyright (C) 2007 Holger Hans Peter Freyther
4 * Copyright (C) 2008 Apple, Inc. All rights reserved.
5 * Copyright (C) 2008 Collabora, Ltd. All rights reserved.
6 * Copyright (C) 2010 Sencha, Inc. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1.  Redistributions of source code must retain the above copyright
13 *     notice, this list of conditions and the following disclaimer.
14 * 2.  Redistributions in binary form must reproduce the above copyright
15 *     notice, this list of conditions and the following disclaimer in the
16 *     documentation and/or other materials provided with the distribution.
17 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
18 *     its contributors may be used to endorse or promote products derived
19 *     from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
22 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
28 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#include "config.h"
34#include "FileSystem.h"
35
36#include "PlatformString.h"
37#include <QDateTime>
38#include <QDir>
39#include <QFile>
40#include <QFileInfo>
41#include <QTemporaryFile>
42#include <wtf/text/CString.h>
43
44namespace WebCore {
45
46bool fileExists(const String& path)
47{
48    return QFile::exists(path);
49}
50
51
52bool deleteFile(const String& path)
53{
54    return QFile::remove(path);
55}
56
57bool deleteEmptyDirectory(const String& path)
58{
59    return QDir::root().rmdir(path);
60}
61
62bool getFileSize(const String& path, long long& result)
63{
64    QFileInfo info(path);
65    result = info.size();
66    return info.exists();
67}
68
69bool getFileModificationTime(const String& path, time_t& result)
70{
71    QFileInfo info(path);
72    result = info.lastModified().toTime_t();
73    return info.exists();
74}
75
76bool makeAllDirectories(const String& path)
77{
78    return QDir::root().mkpath(path);
79}
80
81String pathByAppendingComponent(const String& path, const String& component)
82{
83    return QDir::toNativeSeparators(QDir(path).filePath(component));
84}
85
86String homeDirectoryPath()
87{
88    return QDir::homePath();
89}
90
91String pathGetFileName(const String& path)
92{
93    return QFileInfo(path).fileName();
94}
95
96String directoryName(const String& path)
97{
98    return QFileInfo(path).absolutePath();
99}
100
101Vector<String> listDirectory(const String& path, const String& filter)
102{
103    Vector<String> entries;
104
105    QStringList nameFilters;
106    if (!filter.isEmpty())
107        nameFilters.append(filter);
108    QFileInfoList fileInfoList = QDir(path).entryInfoList(nameFilters, QDir::AllEntries | QDir::NoDotAndDotDot);
109    foreach (const QFileInfo fileInfo, fileInfoList) {
110        String entry = String(fileInfo.canonicalFilePath());
111        entries.append(entry);
112    }
113
114    return entries;
115}
116
117String openTemporaryFile(const String& prefix, PlatformFileHandle& handle)
118{
119#ifndef QT_NO_TEMPORARYFILE
120    QTemporaryFile* tempFile = new QTemporaryFile(QDir::tempPath() + QLatin1Char('/') + QString(prefix));
121    tempFile->setAutoRemove(false);
122    QFile* temp = tempFile;
123    if (temp->open(QIODevice::ReadWrite)) {
124        handle = temp;
125        return temp->fileName();
126    }
127#endif
128    handle = invalidPlatformFileHandle;
129    return String();
130}
131
132PlatformFileHandle openFile(const String& path, FileOpenMode mode)
133{
134    QIODevice::OpenMode platformMode;
135
136    if (mode == OpenForRead)
137        platformMode = QIODevice::ReadOnly;
138    else if (mode == OpenForWrite)
139        platformMode = (QIODevice::WriteOnly | QIODevice::Truncate);
140    else
141        return invalidPlatformFileHandle;
142
143    QFile* file = new QFile(path);
144    if (file->open(platformMode))
145        return file;
146
147    return invalidPlatformFileHandle;
148}
149
150int readFromFile(PlatformFileHandle handle, char* data, int length)
151{
152    if (handle && handle->exists() && handle->isReadable())
153        return handle->read(data, length);
154    return 0;
155}
156
157void closeFile(PlatformFileHandle& handle)
158{
159    if (handle) {
160        handle->close();
161        delete handle;
162    }
163}
164
165long long seekFile(PlatformFileHandle handle, long long offset, FileSeekOrigin origin)
166{
167    if (handle) {
168        long long current = 0;
169
170        switch (origin) {
171        case SeekFromBeginning:
172            break;
173        case SeekFromCurrent:
174            current = handle->pos();
175            break;
176        case SeekFromEnd:
177            current = handle->size();
178            break;
179        }
180
181        // Add the offset to the current position and seek to the new position
182        // Return our new position if the seek is successful
183        current += offset;
184        if (handle->seek(current))
185            return current;
186        else
187            return -1;
188    }
189
190    return -1;
191}
192
193int writeToFile(PlatformFileHandle handle, const char* data, int length)
194{
195    if (handle && handle->exists() && handle->isWritable())
196        return handle->write(data, length);
197
198    return 0;
199}
200
201bool unloadModule(PlatformModule module)
202{
203#if defined(Q_WS_MAC)
204    CFRelease(module);
205    return true;
206
207#elif defined(Q_OS_WIN)
208    return ::FreeLibrary(module);
209
210#else
211#ifndef QT_NO_LIBRARY
212    if (module->unload()) {
213        delete module;
214        return true;
215    }
216#endif
217    return false;
218#endif
219}
220
221}
222
223// vim: ts=4 sw=4 et
224