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// 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_MONITOR_CONTROLLER_H_
#define ASH_MONITOR_MONITOR_CONTROLLER_H_
#pragma once
#include <map>
#include <vector>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "ui/aura/display_observer.h"
#include "ui/aura/monitor_manager.h"
namespace aura {
class Display;
class RootWindow;
}
namespace ash {
namespace internal {
class RootWindowController;
// MonitorController owns and maintains RootWindows for each attached
// display, keeping them in sync with display configuration changes.
// TODO(oshima): Rename MonitorXXX to DisplayXXX.
class MonitorController : public aura::DisplayObserver {
public:
// Layout options where the secondary monitor should be positioned.
enum SecondaryDisplayLayout {
TOP,
RIGHT,
BOTTOM,
LEFT
};
MonitorController();
virtual ~MonitorController();
// Initializes primary display.
void InitPrimaryDisplay();
// Initialize secondary display. This is separated because in non
// extended desktop mode, this creates background widgets, which
// requires other controllers.
void InitSecondaryDisplays();
// Returns the root window for primary display.
aura::RootWindow* GetPrimaryRootWindow();
// Closes all child windows in the all root windows.
void CloseChildWindows();
// Returns all root windows. In non extended desktop mode, this
// returns the primary root window only.
std::vector<aura::RootWindow*> GetAllRootWindows();
// Returns all oot window controllers. In non extended desktop
// mode, this return a RootWindowController for the primary root window only.
std::vector<internal::RootWindowController*> GetAllRootWindowControllers();
SecondaryDisplayLayout secondary_display_layout() const {
return secondary_display_layout_;
}
void SetSecondaryDisplayLayout(SecondaryDisplayLayout layout);
// aura::DisplayObserver overrides:
virtual void OnDisplayBoundsChanged(
const gfx::Display& display) OVERRIDE;
virtual void OnDisplayAdded(const gfx::Display& display) OVERRIDE;
virtual void OnDisplayRemoved(const gfx::Display& display) OVERRIDE;
// Is extended desktop enabled?
static bool IsExtendedDesktopEnabled();
// Change the extended desktop mode. Used for testing.
static void SetExtendedDesktopEnabled(bool enabled);
private:
std::map<int, aura::RootWindow*> root_windows_;
SecondaryDisplayLayout secondary_display_layout_;
DISALLOW_COPY_AND_ASSIGN(MonitorController);
};
} // namespace internal
} // namespace ash
#endif // ASH_MONITOR_MONITOR_CONTROLLER_H_
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