Initial commit.

src/core/taskmanager.h

@@ -0,0 +1,82 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2010, David Sansome <me@davidsansome.com>
+ *
+ * Strawberry is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ * 
+ */
+
+#ifndef TASKMANAGER_H
+#define TASKMANAGER_H
+
+#include "config.h"
+
+#include <QMap>
+#include <QMutex>
+#include <QObject>
+
+class TaskManager : public QObject {
+  Q_OBJECT
+
+ public:
+  explicit TaskManager(QObject *parent = nullptr);
+
+  struct Task {
+    int id;
+    QString name;
+    int progress;
+    int progress_max;
+    bool blocks_collection_scans;
+  };
+
+  class ScopedTask {
+   public:
+    ScopedTask(const int task_id, TaskManager *task_manager) : task_id_(task_id), task_manager_(task_manager) {}
+
+    ~ScopedTask() { task_manager_->SetTaskFinished(task_id_); }
+
+   private:
+    const int task_id_;
+    TaskManager *task_manager_;
+
+    Q_DISABLE_COPY(ScopedTask);
+  };
+
+  // Everything here is thread safe
+  QList<Task> GetTasks();
+
+  int StartTask(const QString &name);
+  void SetTaskBlocksCollectionScans(int id);
+  void SetTaskProgress(int id, int progress, int max = 0);
+  void IncreaseTaskProgress(int id, int progress, int max = 0);
+  void SetTaskFinished(int id);
+  int GetTaskProgress(int id);
+
+signals:
+  void TasksChanged();
+
+  void PauseCollectionWatchers();
+  void ResumeCollectionWatchers();
+
+ private:
+  QMutex mutex_;
+  QMap<int, Task> tasks_;
+  int next_task_id_;
+
+  Q_DISABLE_COPY(TaskManager);
+};
+
+#endif  // TASKMANAGER_H
+