| // Copyright 2013 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_DISPLAY_CHANGE_OBSERVER_CHROMEOS_H |
| #define ASH_DISPLAY_DISPLAY_CHANGE_OBSERVER_CHROMEOS_H |
| |
| #include "ash/ash_export.h" |
| #include "ash/shell_observer.h" |
| #include "base/basictypes.h" |
| #include "chromeos/display/output_configurator.h" |
| |
| namespace ash { |
| namespace internal { |
| |
| struct Resolution; |
| |
| // An object that observes changes in display configuration and |
| // update DisplayManagers. |
| class DisplayChangeObserver |
| : public chromeos::OutputConfigurator::StateController, |
| public chromeos::OutputConfigurator::Observer, |
| public ShellObserver { |
| public: |
| // Returns true if the size info in the output_info isn't valid |
| // and should be ignored. This is exposed for testing. |
| // |mm_width| and |mm_height| are given in millimeters. |
| ASH_EXPORT static bool ShouldIgnoreSize(unsigned long mm_width, |
| unsigned long mm_height); |
| |
| // Returns the resolution list. |
| ASH_EXPORT static std::vector<Resolution> GetResolutionList( |
| const chromeos::OutputConfigurator::OutputSnapshot& output); |
| |
| DisplayChangeObserver(); |
| virtual ~DisplayChangeObserver(); |
| |
| // chromeos::OutputConfigurator::StateController overrides: |
| virtual chromeos::OutputState GetStateForDisplayIds( |
| const std::vector<int64>& outputs) const OVERRIDE; |
| virtual bool GetResolutionForDisplayId(int64 display_id, |
| int* width, |
| int* height) const OVERRIDE; |
| |
| // Overriden from chromeos::OutputConfigurator::Observer: |
| virtual void OnDisplayModeChanged( |
| const std::vector<chromeos::OutputConfigurator::OutputSnapshot>& outputs) |
| OVERRIDE; |
| |
| // Overriden from ShellObserver: |
| virtual void OnAppTerminating() OVERRIDE; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(DisplayChangeObserver); |
| }; |
| |
| } // namespace internal |
| } // namespace ash |
| |
| #endif // ASH_DISPLAY_AURA_DISPLAY_CHANGE_OBSERVER_CHROMEOS_H |