Add Browser class to controll when the application should quit.

browser/browser.cc

@@ -0,0 +1,46 @@
+// Copyright (c) 2013 GitHub, Inc. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "browser/browser.h"
+
+#include "browser/atom_browser_main_parts.h"
+#include "browser/window_list.h"
+
+namespace atom {
+
+Browser::Browser()
+    : is_quiting_(false) {
+  WindowList::AddObserver(this);
+}
+
+Browser::~Browser() {
+  WindowList::RemoveObserver(this);
+}
+
+// static
+Browser* Browser::Get() {
+  return AtomBrowserMainParts::Get()->browser();
+}
+
+void Browser::Quit() {
+  atom::WindowList* window_list = atom::WindowList::GetInstance();
+  if (window_list->size() == 0)
+    Terminate();
+
+  is_quiting_ = true;
+  window_list->CloseAllWindows();
+}
+
+void Browser::OnWindowCloseCancelled(NativeWindow* window) {
+  // Once a beforeunload handler has prevented the closing, we think the quit
+  // is cancelled too.
+  is_quiting_ = false;
+}
+
+void Browser::OnWindowAllClosed() {
+  if (is_quiting_)
+    Terminate();
+}
+
+}  // namespace atom