| // 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_CHROMEOS_DISPLAY_UTIL_H_ |
| #define UI_DISPLAY_CHROMEOS_DISPLAY_UTIL_H_ |
| |
| #include <string> |
| #include <vector> |
| |
| #include "third_party/cros_system_api/dbus/service_constants.h" |
| #include "ui/display/display_export.h" |
| #include "ui/display/types/display_constants.h" |
| |
| namespace ui { |
| |
| class DisplaySnapshot; |
| |
| // Returns a string describing |state|. |
| std::string DisplayPowerStateToString(chromeos::DisplayPowerState state); |
| |
| // Returns a string describing |state|. |
| std::string MultipleDisplayStateToString(MultipleDisplayState state); |
| |
| // Returns the number of displays in |displays| that should be turned on, per |
| // |state|. If |display_power| is non-NULL, it is updated to contain the |
| // on/off state of each corresponding entry in |displays|. |
| int DISPLAY_EXPORT |
| GetDisplayPower(const std::vector<DisplaySnapshot*>& displays, |
| chromeos::DisplayPowerState state, |
| std::vector<bool>* display_power); |
| |
| // Returns whether the DisplayConnectionType |type| is a physically connected |
| // display. Currently DISPLAY_CONNECTION_TYPE_VIRTUAL and |
| // DISPLAY_CONNECTION_TYPE_NETWORK return false. All other types return true. |
| bool IsPhysicalDisplayType(ui::DisplayConnectionType type); |
| |
| } // namespace ui |
| |
| #endif // UI_DISPLAY_CHROMEOS_DISPLAY_UTIL_H_ |