1// Copyright (C) 2021 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#include "qmediastoragelocation_p.h"
5
6#include <QStandardPaths>
7#include <QUrl>
8
9QT_BEGIN_NAMESPACE
10
11QDir QMediaStorageLocation::defaultDirectory(QStandardPaths::StandardLocation type)
12{
13 QStringList dirCandidates;
14
15#if QT_CONFIG(mmrenderer)
16 dirCandidates << QLatin1String("shared/camera");
17#endif
18
19 dirCandidates << QStandardPaths::writableLocation(type);
20 dirCandidates << QStandardPaths::writableLocation(type: QStandardPaths::DocumentsLocation);
21 dirCandidates << QDir::homePath();
22 dirCandidates << QDir::currentPath();
23 dirCandidates << QDir::tempPath();
24
25 for (const QString &path : std::as_const(t&: dirCandidates)) {
26 QDir dir(path);
27 if (dir.exists() && QFileInfo(path).isWritable())
28 return dir;
29 }
30
31 return QDir();
32}
33
34static QString generateFileName(const QDir &dir, const QString &prefix, const QString &extension)
35{
36 auto lastMediaIndex = 0;
37 const auto list = dir.entryList(nameFilters: { QStringLiteral("%1*.%2").arg(args: prefix, args: extension) });
38 for (const QString &fileName : list) {
39 auto mediaIndex = QStringView{fileName}.mid(pos: prefix.size(), n: fileName.size() - prefix.size() - extension.size() - 1).toInt();
40 lastMediaIndex = qMax(a: lastMediaIndex, b: mediaIndex);
41 }
42
43 const QString name = QStringLiteral("%1%2.%3")
44 .arg(a: prefix)
45 .arg(a: lastMediaIndex + 1, fieldWidth: 4, base: 10, fillChar: QLatin1Char('0'))
46 .arg(a: extension);
47
48 return dir.absoluteFilePath(fileName: name);
49}
50
51
52QString QMediaStorageLocation::generateFileName(const QString &requestedName,
53 QStandardPaths::StandardLocation type,
54 const QString &extension)
55{
56 using namespace Qt::StringLiterals;
57
58 if (QUrl(requestedName).scheme() == "content"_L1)
59 return requestedName;
60
61 auto prefix = "clip_"_L1;
62 switch (type) {
63 case QStandardPaths::PicturesLocation: prefix = "image_"_L1; break;
64 case QStandardPaths::MoviesLocation: prefix = "video_"_L1; break;
65 case QStandardPaths::MusicLocation: prefix = "record_"_L1; break;
66 default: break;
67 }
68
69 if (requestedName.isEmpty())
70 return generateFileName(dir: defaultDirectory(type), prefix, extension);
71
72 QString path = requestedName;
73
74 const QFileInfo fileInfo{ path };
75
76 if (fileInfo.isRelative() && QUrl(path).isRelative())
77 path = defaultDirectory(type).absoluteFilePath(fileName: path);
78
79 if (fileInfo.isDir())
80 return generateFileName(dir: QDir(path), prefix, extension);
81
82 if (fileInfo.suffix().isEmpty() && !extension.isEmpty()) {
83 // File does not have an extension, so add the suggested one
84 if (!path.endsWith(c: u'.'))
85 path.append(c: u'.');
86 path.append(s: extension);
87 }
88 return path;
89}
90
91QT_END_NAMESPACE
92

Provided by KDAB

Privacy Policy
Learn Advanced QML with KDAB
Find out more

source code of qtmultimedia/src/multimedia/qmediastoragelocation.cpp