Refactoring

src/includes/scopedgobject.h

@@ -0,0 +1,68 @@
+/*
+ * 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 SCOPEDGOBJECT_H
+#define SCOPEDGOBJECT_H
+
+#include "config.h"
+
+#include <glib-object.h>
+
+template<typename T>
+class ScopedGObject {
+ public:
+  ScopedGObject() : object_(nullptr) {}
+
+  ScopedGObject(const ScopedGObject &other) : object_(nullptr) {
+    reset(other.object_);
+  }
+
+  ~ScopedGObject() { reset(); }
+
+  ScopedGObject &operator=(const ScopedGObject &other) {
+    reset(other.object_);
+    return *this;
+  }
+
+  void reset(T *new_object = nullptr) {
+    if (new_object) g_object_ref(new_object);
+    reset_without_add(new_object);
+  }
+
+  void reset_without_add(T *new_object = nullptr) {
+    if (object_) g_object_unref(object_);
+
+    object_ = new_object;
+  }
+
+  T *get() const { return object_; }
+  operator T*() const { return get(); }
+  T *operator*() const { return get(); }
+  operator bool() const { return get(); }
+
+  bool operator==(const ScopedGObject &other) const {
+    return object_ == other.object_;
+  }
+
+ private:
+  T *object_;
+};
+
+#endif  // SCOPEDGOBJECT_H