Merge "Modify PowerSaveController to support adding and removing listeners out... (94691748) · Commits · e / os / android_frameworks_libs_systemui

toruslib/torus-utils/src/main/java/com/google/android/torus/utils/broadcast/PowerSaveController.kt

+23 −13

Original line number	Diff line number	Diff line
		@@ -23,25 +23,24 @@ import android.os.PowerManager
		import java.util.concurrent.atomic.AtomicBoolean

		/**
		* PowerSaveController registers a BroadcastReceiver that listens to
		* changes in Power Save Mode provided by the OS.
		* Forwards received broadcasts to be handled by a [PowerSaveListener].
		* PowerSaveController registers a BroadcastReceiver that listens to changes in Power Save Mode
		* provided by the OS. Forwards received broadcasts to be handled by a [PowerSaveListener].
		*/
		class PowerSaveController(
		context: Context,
		private val listener: PowerSaveListener?
		) : BroadcastEventController(context) {
		class PowerSaveController(context: Context, listener: PowerSaveListener?) :
		BroadcastEventController(context) {
		companion object {
		const val DEFAULT_POWER_SAVE_MODE = false
		}

		private val listeners = mutableListOf<PowerSaveListener>()

		private var powerSaving: AtomicBoolean? = null
		private var powerManager: PowerManager? = null

		override fun initResources(): Boolean {
		if (powerSaving == null) powerSaving = AtomicBoolean(DEFAULT_POWER_SAVE_MODE)
		if (powerManager == null) powerManager =
		context.getSystemService(Context.POWER_SERVICE) as PowerManager?
		if (powerManager == null)
		powerManager = context.getSystemService(Context.POWER_SERVICE) as PowerManager?
		return powerManager != null
		}

		@@ -59,21 +58,32 @@ class PowerSaveController(

		override fun onUnregister() {}

		init {
		if (listener != null) {
		listeners.add(listener)
		}
		}

		private fun setPowerSave(isPowerSave: Boolean, fire: Boolean) {
		powerSaving?.let {
		if (it.get() == isPowerSave) return
		it.set(isPowerSave)
		}

		listener?.let {
		if (fire) listener.onPowerSaveModeChanged(isPowerSave)
		}
		listeners.forEach { listener -> if (fire) listener.onPowerSaveModeChanged(isPowerSave) }
		}

		fun isPowerSaving(): Boolean = powerSaving?.get() ?: false

		fun registerListener(listener: PowerSaveListener) {
		listeners += listener
		}

		fun unregisterListener(listener: PowerSaveListener) {
		listeners -= listener
		}

		interface PowerSaveListener {
		fun onPowerSaveModeChanged(isPowerSaveMode: Boolean)
		}

		}