| // 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 UI_DISPLAY_MANAGER_UPDATE_DISPLAY_CONFIGURATION_TASK_H_ |
| #define UI_DISPLAY_MANAGER_UPDATE_DISPLAY_CONFIGURATION_TASK_H_ |
| |
| #include <stdint.h> |
| |
| #include <memory> |
| #include <vector> |
| |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "ui/display/manager/configure_displays_task.h" |
| #include "ui/display/manager/display_configurator.h" |
| #include "ui/display/types/native_display_observer.h" |
| |
| namespace display { |
| |
| class DisplaySnapshot; |
| class NativeDisplayDelegate; |
| |
| class DISPLAY_MANAGER_EXPORT UpdateDisplayConfigurationTask |
| : public NativeDisplayObserver { |
| public: |
| using ResponseCallback = base::OnceCallback<void( |
| /*success=*/bool, |
| /*displays=*/const std::vector<DisplaySnapshot*>&, |
| /*unassociated_displays=*/const std::vector<DisplaySnapshot*>&, |
| /*new_display_state=*/MultipleDisplayState, |
| /*new_power_state=*/chromeos::DisplayPowerState)>; |
| |
| UpdateDisplayConfigurationTask(NativeDisplayDelegate* delegate, |
| DisplayLayoutManager* layout_manager, |
| MultipleDisplayState new_display_state, |
| chromeos::DisplayPowerState new_power_state, |
| int power_flags, |
| bool force_configure, |
| ResponseCallback callback); |
| ~UpdateDisplayConfigurationTask() override; |
| |
| void Run(); |
| |
| // display::NativeDisplayObserver: |
| void OnConfigurationChanged() override; |
| void OnDisplaySnapshotsInvalidated() override; |
| |
| private: |
| // Callback to NativeDisplayDelegate::GetDisplays(). |
| void OnDisplaysUpdated(const std::vector<DisplaySnapshot*>& displays); |
| |
| // Callback to ConfigureDisplaysTask used to process the result of a display |
| // configuration run. |
| void OnStateEntered(ConfigureDisplaysTask::Status status); |
| |
| // If the initial display configuration run failed due to errors entering |
| // mirror more, another configuration run is executed to enter software |
| // mirroring. This is the callback used to process the result of that |
| // configuration. |
| void OnEnableSoftwareMirroring(ConfigureDisplaysTask::Status status); |
| |
| // Starts the configuration process. |callback| is used to continue the task |
| // after |configure_taks_| finishes executing. |
| void EnterState(ConfigureDisplaysTask::ResponseCallback callback); |
| |
| // Finishes display configuration and runs |callback_|. |
| void FinishConfiguration(bool success); |
| |
| // Returns true if the DPMS state should be force to on. |
| bool ShouldForceDpms() const; |
| |
| // Returns true if a display configuration is required. |
| bool ShouldConfigure() const; |
| |
| // Returns a display state based on the power state. |
| MultipleDisplayState ChooseDisplayState() const; |
| |
| NativeDisplayDelegate* delegate_; // Not owned. |
| DisplayLayoutManager* layout_manager_; // Not owned. |
| |
| // Requested display state. |
| MultipleDisplayState new_display_state_; |
| |
| // Requested power state. |
| chromeos::DisplayPowerState new_power_state_; |
| |
| // Bitwise-or-ed values for the kSetDisplayPower* values defined in |
| // DisplayConfigurator. |
| int power_flags_; |
| |
| bool force_configure_; |
| |
| // Used to signal that the task has finished. |
| ResponseCallback callback_; |
| |
| bool requesting_displays_; |
| |
| // List of updated displays. |
| std::vector<DisplaySnapshot*> cached_displays_; |
| |
| // List of updated displays which have no associated crtc. It can happen |
| // when the device is connected with so many displays that has no available |
| // crtc to assign. |
| std::vector<DisplaySnapshot*> cached_unassociated_displays_; |
| |
| std::unique_ptr<ConfigureDisplaysTask> configure_task_; |
| |
| base::WeakPtrFactory<UpdateDisplayConfigurationTask> weak_ptr_factory_{this}; |
| |
| DISALLOW_COPY_AND_ASSIGN(UpdateDisplayConfigurationTask); |
| }; |
| |
| } // namespace display |
| |
| #endif // UI_DISPLAY_MANAGER_UPDATE_DISPLAY_CONFIGURATION_TASK_H_ |