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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_DISPLAY_MULTI_DISPLAY_MANAGER_H_
#define ASH_DISPLAY_MULTI_DISPLAY_MANAGER_H_
#include <string>
#include <vector>
#include "ash/ash_export.h"
#include "base/compiler_specific.h"
#include "base/gtest_prod_util.h"
#include "ui/aura/display_manager.h"
#include "ui/aura/root_window_observer.h"
#include "ui/aura/window.h"
namespace gfx {
class Display;
class Insets;
class Rect;
}
namespace ash {
namespace test {
class AcceleratorControllerTest;
class AshTestBase;
class SystemGestureEventFilterTest;
}
namespace internal {
// MultiDisplayManager maintains the current display configurations,
// and notifies observers when configuration changes.
// This is exported for unittest.
//
// TODO(oshima): gfx::Screen needs to return translated coordinates
// if the root window is translated. crbug.com/119268.
class ASH_EXPORT MultiDisplayManager : public aura::DisplayManager,
public aura::RootWindowObserver {
public:
MultiDisplayManager();
virtual ~MultiDisplayManager();
// Used to emulate display change when run in a desktop environment instead
// of on a device.
static void CycleDisplay();
static void ToggleDisplayScale();
// When set to true, the MultiMonitorManager calls OnDisplayBoundsChanged
// even if the display's bounds didn't change. Used to swap primary
// display.
void set_force_bounds_changed(bool force_bounds_changed) {
force_bounds_changed_ = force_bounds_changed;
}
// True if the given |display| is currently connected.
bool IsActiveDisplay(const gfx::Display& display) const;
// True if there is an internal display.
bool HasInternalDisplay() const;
bool IsInternalDisplayId(int64 id) const;
bool UpdateWorkAreaOfDisplayNearestWindow(const aura::Window* window,
const gfx::Insets& insets);
// Returns display for given |id|;
const gfx::Display& GetDisplayForId(int64 id) const;
// Finds the display that contains |point| in screeen coordinates.
// Returns invalid display if there is no display that can satisfy
// the condition.
const gfx::Display& FindDisplayContainingPoint(
const gfx::Point& point_in_screen) const;
// DisplayManager overrides:
virtual void OnNativeDisplaysChanged(
const std::vector<gfx::Display>& displays) OVERRIDE;
virtual aura::RootWindow* CreateRootWindowForDisplay(
const gfx::Display& display) OVERRIDE;
virtual gfx::Display* GetDisplayAt(size_t index) OVERRIDE;
virtual size_t GetNumDisplays() const OVERRIDE;
virtual const gfx::Display& GetDisplayNearestPoint(
const gfx::Point& point) const OVERRIDE;
virtual const gfx::Display& GetDisplayNearestWindow(
const aura::Window* window) const OVERRIDE;
virtual const gfx::Display& GetDisplayMatching(
const gfx::Rect& match_rect)const OVERRIDE;
virtual std::string GetDisplayNameFor(const gfx::Display& display) OVERRIDE;
// RootWindowObserver overrides:
virtual void OnRootWindowResized(const aura::RootWindow* root,
const gfx::Size& new_size) OVERRIDE;
private:
FRIEND_TEST_ALL_PREFIXES(ExtendedDesktopTest, ConvertPoint);
FRIEND_TEST_ALL_PREFIXES(MultiDisplayManagerTest, TestNativeDisplaysChanged);
friend class test::AcceleratorControllerTest;
friend class test::AshTestBase;
friend class MultiDisplayManagerTest;
friend class test::SystemGestureEventFilterTest;
typedef std::vector<gfx::Display> DisplayList;
void Init();
void CycleDisplayImpl();
void ScaleDisplayImpl();
gfx::Display& FindDisplayForRootWindow(const aura::RootWindow* root);
gfx::Display& FindDisplayForId(int64 id);
// Refer to |aura::DisplayManager::CreateDisplayFromSpec| API for
// the format of |spec|.
void AddDisplayFromSpec(const std::string& spec);
// Set the 1st display as an internal display and returns the display Id for
// the internal display.
int64 SetFirstDisplayAsInternalDisplayForTest();
// Update the display's id in the |display_list| to match the ones
// stored in this display manager's |displays_|. This is used to
// emulate display change behavior during the test byn creating the
// display list with the same display ids but with different bounds
void SetDisplayIdsForTest(DisplayList* display_list) const;
DisplayList displays_;
int64 internal_display_id_;
// An internal display cache used when the internal display is disconnectd.
scoped_ptr<gfx::Display> internal_display_;
bool force_bounds_changed_;
DISALLOW_COPY_AND_ASSIGN(MultiDisplayManager);
};
extern const aura::WindowProperty<int64>* const kDisplayIdKey;
} // namespace internal
} // namespace ash
#endif // ASH_DISPLAY_MULTI_DISPLAY_MANAGER_H_
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