Reworked to allow separate paths for saving images and videos

[harmattan/cameraplus] / src / mountprotector.cpp

diff --git a/src/mountprotector.cpp b/src/mountprotector.cpp
new file mode 100644 (file)
index 0000000..c9c8402
--- /dev/null
+++ b/src/mountprotector.cpp
@@ -0,0 +1,77 @@
+/*!
+ * This file is part of CameraPlus.
+ *
+ * Copyright (C) 2012-2013 Mohammed Sameer <msameer@foolab.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "mountprotector.h"
+#include <QDir>
+#include <QTemporaryFile>
+#if defined(QT4)
+#include <QDeclarativeInfo>
+#elif defined(QT5)
+#include <QQmlInfo>
+#endif
+
+MountProtector::MountProtector(QObject *parent) :
+  QObject(parent) {
+
+}
+
+MountProtector::~MountProtector() {
+  unlockAll();
+}
+
+bool MountProtector::lock(const QString& path) {
+  if (path.isEmpty()) {
+    qmlInfo(this) << "Cannot lock an empty path";
+    return false;
+  }
+
+  QString p = QString("%1%2.cameraplus_tmp_XXXXXX").arg(path).arg(QDir::separator());
+  QTemporaryFile *file = new QTemporaryFile(p);
+  file->setAutoRemove(true);
+
+  if (!file->open()) {
+    qmlInfo(this) << "Failed to lock" << file->errorString();
+    delete file;
+    file = 0;
+    return false;
+  }
+
+  if (!QFile::remove(file->fileName())) {
+    qmlInfo(this) << "Failed to remove temporarily file" << file->fileName();
+  }
+
+  m_locks.insert(path, file);
+
+  return true;
+}
+
+void MountProtector::unlock(const QString& path) {
+  QTemporaryFile *file = m_locks.take(path);
+
+  if (file) {
+    delete file;
+  }
+}
+
+void MountProtector::unlockAll() {
+  qDeleteAll(m_locks);
+
+  m_locks.clear();
+}