refactor: rename the atom directory to shell

shell/browser/window_list.h

@@ -0,0 +1,64 @@
+// Copyright (c) 2013 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#ifndef ATOM_BROWSER_WINDOW_LIST_H_
+#define ATOM_BROWSER_WINDOW_LIST_H_
+
+#include <vector>
+
+#include "base/lazy_instance.h"
+#include "base/macros.h"
+#include "base/observer_list.h"
+
+namespace atom {
+
+class NativeWindow;
+class WindowListObserver;
+
+class WindowList {
+ public:
+  typedef std::vector<NativeWindow*> WindowVector;
+
+  static WindowVector GetWindows();
+  static bool IsEmpty();
+
+  // Adds or removes |window| from the list it is associated with.
+  static void AddWindow(NativeWindow* window);
+  static void RemoveWindow(NativeWindow* window);
+
+  // Called by window when a close is cancelled by beforeunload handler.
+  static void WindowCloseCancelled(NativeWindow* window);
+
+  // Adds and removes |observer| from the observer list.
+  static void AddObserver(WindowListObserver* observer);
+  static void RemoveObserver(WindowListObserver* observer);
+
+  // Closes all windows.
+  static void CloseAllWindows();
+
+  // Destroy all windows.
+  static void DestroyAllWindows();
+
+ private:
+  static WindowList* GetInstance();
+
+  WindowList();
+  ~WindowList();
+
+  // A vector of the windows in this list, in the order they were added.
+  WindowVector windows_;
+
+  // A list of observers which will be notified of every window addition and
+  // removal across all WindowLists.
+  static base::LazyInstance<base::ObserverList<WindowListObserver>>::Leaky
+      observers_;
+
+  static WindowList* instance_;
+
+  DISALLOW_COPY_AND_ASSIGN(WindowList);
+};
+
+}  // namespace atom
+
+#endif  // ATOM_BROWSER_WINDOW_LIST_H_