athena: Add some tests for the existing wm functionalities.

athena/wm/window_manager_impl.h

Index: athena/wm/window_manager_impl.h
diff --git a/athena/wm/window_manager_impl.h b/athena/wm/window_manager_impl.h
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+++ b/athena/wm/window_manager_impl.h
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+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef ATHENA_WM_WINDOW_MANAGER_IMPL_H_
+#define ATHENA_WM_WINDOW_MANAGER_IMPL_H_
+
+#include "athena/input/public/accelerator_manager.h"
+#include "athena/wm/public/window_manager.h"
+#include "athena/wm/title_drag_controller.h"
+#include "athena/wm/window_overview_mode.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/observer_list.h"
+#include "ui/aura/window_observer.h"
+
+namespace wm {
+class ShadowController;
+class WMState;
+}
+
+namespace athena {
+
+class BezelController;
+class SplitViewController;
+class WindowListProvider;
+class WindowManagerObserver;
+
+class WindowManagerImpl : public WindowManager,
+                          public WindowOverviewModeDelegate,
+                          public aura::WindowObserver,
+                          public AcceleratorHandler,
+                          public TitleDragControllerDelegate {
+ public:
+  WindowManagerImpl();
+  virtual ~WindowManagerImpl();
+
+  void Layout();
+
+  // WindowManager:
+  virtual void ToggleOverview() OVERRIDE;
+  virtual bool IsOverviewModeActive() OVERRIDE;
+
+ private:
+  friend class WindowManagerImplTestApi;
+
+  enum Command {
+    CMD_TOGGLE_OVERVIEW,
+  };
+
+  // Sets whether overview mode is active.
+  void SetInOverview(bool active);
+
+  void InstallAccelerators();
+
+  // WindowManager:
+  virtual void AddObserver(WindowManagerObserver* observer) OVERRIDE;
+  virtual void RemoveObserver(WindowManagerObserver* observer) OVERRIDE;
+
+  // WindowOverviewModeDelegate:
+  virtual void OnSelectWindow(aura::Window* window) OVERRIDE;
+  virtual void OnSplitViewMode(aura::Window* left,
+                               aura::Window* right) OVERRIDE;
+
+  // aura::WindowObserver:
+  virtual void OnWindowAdded(aura::Window* new_window) OVERRIDE;
+  virtual void OnWindowDestroying(aura::Window* window) OVERRIDE;
+
+  // AcceleratorHandler:
+  virtual bool IsCommandEnabled(int command_id) const OVERRIDE;
+  virtual bool OnAcceleratorFired(int command_id,
+                                  const ui::Accelerator& accelerator) OVERRIDE;
+
+  // TitleDragControllerDelegate:
+  virtual aura::Window* GetWindowBehind(aura::Window* window) OVERRIDE;
+  virtual void OnTitleDragStarted(aura::Window* window) OVERRIDE;
+  virtual void OnTitleDragCompleted(aura::Window* window) OVERRIDE;
+  virtual void OnTitleDragCanceled(aura::Window* window) OVERRIDE;
+
+  scoped_ptr<aura::Window> container_;
+  scoped_ptr<WindowListProvider> window_list_provider_;
+  scoped_ptr<WindowOverviewMode> overview_;
+  scoped_ptr<BezelController> bezel_controller_;
+  scoped_ptr<SplitViewController> split_view_controller_;
+  scoped_ptr<wm::WMState> wm_state_;
+  scoped_ptr<TitleDragController> title_drag_controller_;
+  scoped_ptr<wm::ShadowController> shadow_controller_;
+  ObserverList<WindowManagerObserver> observers_;
+
+  DISALLOW_COPY_AND_ASSIGN(WindowManagerImpl);
+};
+
+}  // namespace athena
+
+#endif  // ATHENA_WM_WINDOW_MANAGER_IMPL_H_