Index: chromeos/dbus/power_manager_client.h |
diff --git a/chromeos/dbus/power_manager_client.h b/chromeos/dbus/power_manager_client.h |
index 9f341deb67370d0e6b51d309357591d960abb5e2..3d339034a1fbaff933dfd9afcb8dffebfe3d609a 100644 |
--- a/chromeos/dbus/power_manager_client.h |
+++ b/chromeos/dbus/power_manager_client.h |
@@ -23,16 +23,31 @@ class PowerSupplyProperties; |
namespace chromeos { |
-// Callback used for getting the current screen brightness. The param is in the |
-// range [0.0, 100.0]. |
-typedef base::Callback<void(double)> GetScreenBrightnessPercentCallback; |
- |
-// Callback used for getting the current backlights forced off state. |
-typedef base::Callback<void(bool)> GetBacklightsForcedOffCallback; |
- |
// PowerManagerClient is used to communicate with the power manager. |
class CHROMEOS_EXPORT PowerManagerClient : public DBusClient { |
public: |
+ enum class LidState { |
+ OPEN, |
+ CLOSED, |
+ NOT_PRESENT, |
+ }; |
+ |
+ enum class TabletMode { |
+ ON, |
+ OFF, |
+ UNSUPPORTED, |
+ }; |
+ |
+ // Callback used for getting the current screen brightness. The param is in |
+ // the range [0.0, 100.0]. |
+ typedef base::Callback<void(double)> GetScreenBrightnessPercentCallback; |
+ |
+ // Callback passed to GetBacklightsForcedOff(). |
+ typedef base::Callback<void(bool forced_off)> GetBacklightsForcedOffCallback; |
+ |
+ // Callback passed to GetSwitchStates(). |
+ typedef base::Callback<void(LidState, TabletMode)> GetSwitchStatesCallback; |
+ |
// Interface for observing changes from the power manager. |
class Observer { |
public: |
@@ -87,12 +102,14 @@ class CHROMEOS_EXPORT PowerManagerClient : public DBusClient { |
virtual void PowerButtonEventReceived(bool down, |
const base::TimeTicks& timestamp) {} |
- // Called when the device's lid is opened or closed. |
- virtual void LidEventReceived(bool open, |
+ // Called when the device's lid is opened or closed. LidState::NOT_PRESENT |
+ // is never passed. |
+ virtual void LidEventReceived(LidState state, |
const base::TimeTicks& timestamp) {} |
// Called when the device's tablet mode switch is on or off. |
- virtual void TabletModeEventReceived(bool on, |
+ // TabletMode::UNSUPPORTED is never passed. |
+ virtual void TabletModeEventReceived(TabletMode mode, |
const base::TimeTicks& timestamp) {} |
// Called when the idle action will be performed after |
@@ -187,13 +204,17 @@ class CHROMEOS_EXPORT PowerManagerClient : public DBusClient { |
// causes powerd to switch to using the battery on devices with type-C ports. |
virtual void SetPowerSource(const std::string& id) = 0; |
- // Forces the display and keyboard backlights (if present) to |forced_off|. |
+ // Forces the display and (if present) keyboard backlights to |forced_off|. |
virtual void SetBacklightsForcedOff(bool forced_off) = 0; |
- // Gets the display and keyboard backlights (if present) forced off state. |
+ // Gets the display and (if present) keyboard backlights' forced-off state. |
virtual void GetBacklightsForcedOff( |
const GetBacklightsForcedOffCallback& callback) = 0; |
+ // Asynchronously fetches the current state of various hardware switches (e.g. |
+ // the lid switch and the tablet-mode switch). |
+ virtual void GetSwitchStates(const GetSwitchStatesCallback& callback) = 0; |
+ |
// Returns a callback that can be called by an observer to report |
// readiness for suspend. See Observer::SuspendImminent(). |
virtual base::Closure GetSuspendReadinessCallback() = 0; |