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// Copyright 2016 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.
#include <memory>
#include "ash/ash_export.h"
#include "ash/display/window_tree_host_manager.h"
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "ui/display/display.h"
namespace display {
class DisplayLayout;
namespace ash {
namespace test {
class ShellTestApi;
} // namespace test
class DisplayAnimator;
class DisplayManager;
// This class controls Display related configuration. Specifically it:
// * Handles animated transitions where appropriate.
// * Limits the frequency of certain operations.
// * Provides a single interface for UI and API classes.
// * TODO: Forwards display configuration changed events to UI and API classes.
class ASH_EXPORT DisplayConfigurationController
: public WindowTreeHostManager::Observer {
DisplayManager* display_manager,
WindowTreeHostManager* window_tree_host_manager);
~DisplayConfigurationController() override;
// Sets the layout for the current displays with a fade in/out
// animation. Currently |display_id| is assumed to be the secondary
// display. TODO(oshima/stevenjb): Support 3+ displays.
void SetDisplayLayout(std::unique_ptr<display::DisplayLayout> layout,
bool user_action);
// Sets the mirror mode with a fade-in/fade-out animation. Affects all
// displays.
void SetMirrorMode(bool mirror, bool user_action);
// Sets the display's rotation with animation if available.
void SetDisplayRotation(int64_t display_id,
display::Display::Rotation rotation,
display::Display::RotationSource source,
bool user_action);
// Sets the primary display id.
void SetPrimaryDisplayId(int64_t display_id, bool user_action);
// WindowTreeHostManager::Observer
void OnDisplayConfigurationChanged() override;
friend class ash::test::ShellTestApi;
// Allow tests to skip animations.
void ResetAnimatorForTest();
class DisplayChangeLimiter;
// Sets the timeout for the DisplayChangeLimiter if it exists. Call this
// *before* starting any animations.
void SetThrottleTimeout(int64_t throttle_ms);
bool IsLimited();
void SetDisplayLayoutImpl(std::unique_ptr<display::DisplayLayout> layout);
void SetMirrorModeImpl(bool mirror);
void SetPrimaryDisplayIdImpl(int64_t display_id);
DisplayManager* display_manager_; // weak ptr
WindowTreeHostManager* window_tree_host_manager_; // weak ptr
std::unique_ptr<DisplayAnimator> display_animator_;
std::unique_ptr<DisplayChangeLimiter> limiter_;
base::WeakPtrFactory<DisplayConfigurationController> weak_ptr_factory_;
} // namespace ash