MultiMonitor support

ash/monitor/multi_monitor_manager.h

+// Copyright (c) 2012 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 ASH_MONITOR_MULTI_MONITOR_MANAGER_H_
+#define ASH_MONITOR_MULTI_MONITOR_MANAGER_H_
+#pragma once
+
+#include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
+#include "ui/aura/monitor_manager.h"
+#include "ui/aura/window.h"
+#include "ui/aura/window_observer.h"
+
+namespace ash {
+namespace internal {
+
+class MultiMonitorManager : public aura::MonitorManager,
+                            public aura::WindowObserver {
+ public:
+  MultiMonitorManager();
+  virtual ~MultiMonitorManager();
+
+  // MonitorManager overrides:
+  virtual void OnNativeMonitorResized(const gfx::Size& size) OVERRIDE;
+  virtual aura::RootWindow* CreateRootWindowForMonitor(
+      aura::Monitor* monitor) OVERRIDE;
+  virtual const aura::Monitor* GetMonitorNearestWindow(
+      const aura::Window* window) const OVERRIDE;
+  virtual const aura::Monitor* GetMonitorNearestPoint(
+      const gfx::Point& point) const OVERRIDE;
+  virtual aura::Monitor* GetMonitorAt(size_t index) OVERRIDE;
+  virtual size_t GetNumMonitors() const OVERRIDE;
+  virtual aura::Monitor* GetMonitorNearestWindow(
+      const aura::Window* window) OVERRIDE;
+
+  // WindowObserver overrides:
+  virtual void OnWindowBoundsChanged(aura::Window* window,
+                                     const gfx::Rect& bounds) OVERRIDE;
+  virtual void OnWindowDestroying(aura::Window* window) OVERRIDE;
+
+ private:
+  typedef std::vector<aura::Monitor*> Monitors;
+
+  void Init();
+
+  Monitors monitors_;
+
+  DISALLOW_COPY_AND_ASSIGN(MultiMonitorManager);
+};
+
+extern const aura::WindowProperty<aura::Monitor*>* const kMonitorKey;
+
+}  // namespace internal
+}  // namespace ash
+
+#endif  //  ASH_MONITOR_MULTI_MONITOR_MANAGER_H_