[Catalyst] Add the store and get API into BrightnessLevelPreference (9648e58e) · Commits · e / os / android_packages_apps_Settings

src/com/android/settings/display/BrightnessLevelPreference.kt

+86 −63

Original line number	Diff line number	Diff line
		@@ -31,16 +31,20 @@ import com.android.settings.R
		import com.android.settings.Utils
		import com.android.settings.core.SettingsBaseActivity
		import com.android.settingslib.RestrictedPreference
		import com.android.settingslib.datastore.AbstractKeyedDataObservable
		import com.android.settingslib.datastore.DataChangeReason
		import com.android.settingslib.datastore.HandlerExecutor
		import com.android.settingslib.datastore.KeyValueStore
		import com.android.settingslib.datastore.KeyedObserver
		import com.android.settingslib.datastore.SettingsSystemStore
		import com.android.settingslib.display.BrightnessUtils.GAMMA_SPACE_MAX
		import com.android.settingslib.display.BrightnessUtils.GAMMA_SPACE_MIN
		import com.android.settingslib.display.BrightnessUtils.convertLinearToGammaFloat
		import com.android.settingslib.metadata.PreferenceLifecycleContext
		import com.android.settingslib.metadata.PreferenceLifecycleProvider
		import com.android.settingslib.metadata.PersistentPreference
		import com.android.settingslib.metadata.PreferenceMetadata
		import com.android.settingslib.metadata.PreferenceSummaryProvider
		import com.android.settingslib.metadata.ReadWritePermit
		import com.android.settingslib.metadata.SensitivityLevel
		import com.android.settingslib.preference.PreferenceBinding
		import com.android.settingslib.transition.SettingsTransitionHelper
		import java.text.NumberFormat
		@@ -48,15 +52,12 @@ import java.text.NumberFormat
		// LINT.IfChange
		class BrightnessLevelPreference :
		PreferenceMetadata,
		PersistentPreference<Float>,
		PreferenceBinding,
		PreferenceRestrictionMixin,
		PreferenceSummaryProvider,
		PreferenceLifecycleProvider,
		Preference.OnPreferenceClickListener {

		private var brightnessObserver: KeyedObserver<String>? = null
		private var displayListener: DisplayListener? = null

		override val key: String
		get() = KEY

		@@ -67,7 +68,7 @@ class BrightnessLevelPreference :
		get() = R.string.keywords_display_brightness_level

		override fun getSummary(context: Context): CharSequence? =
		NumberFormat.getPercentInstance().format(getCurrentBrightness(context))
		NumberFormat.getPercentInstance().format(context.brightness)

		override fun isEnabled(context: Context) = super<PreferenceRestrictionMixin>.isEnabled(context)

		@@ -77,75 +78,100 @@ class BrightnessLevelPreference :
		override val useAdminDisabledSummary: Boolean
		get() = true

		override fun intent(context: Context) =
		Intent(ACTION_SHOW_BRIGHTNESS_DIALOG)
		.setPackage(Utils.SYSTEMUI_PACKAGE_NAME)
		.putExtra(
		SettingsBaseActivity.EXTRA_PAGE_TRANSITION_TYPE,
		SettingsTransitionHelper.TransitionType.TRANSITION_NONE,
		)
		.putExtra(EXTRA_BRIGHTNESS_DIALOG_IS_FULL_WIDTH, true)

		override fun createWidget(context: Context) = RestrictedPreference(context)

		override fun bind(preference: Preference, metadata: PreferenceMetadata) {
		super.bind(preference, metadata)
		preference.onPreferenceClickListener = this
		preference.isPersistent = false
		}

		override fun onStart(context: PreferenceLifecycleContext) {
		val observer = KeyedObserver<String> { _, _ -> context.notifyPreferenceChange(KEY) }
		brightnessObserver = observer
		SettingsSystemStore.get(context)
		.addObserver(System.SCREEN_AUTO_BRIGHTNESS_ADJ, observer, HandlerExecutor.main)
		override fun getReadPermit(context: Context, callingPid: Int, callingUid: Int) =
		ReadWritePermit.ALLOW

		val listener =
		object : DisplayListener {
		override fun onDisplayAdded(displayId: Int) {}
		override fun getWritePermit(context: Context, value: Float?, callingPid: Int, callingUid: Int) =
		ReadWritePermit.DISALLOW

		override fun onDisplayRemoved(displayId: Int) {}
		override val sensitivityLevel
		get() = SensitivityLevel.NO_SENSITIVITY

		override fun storage(context: Context): KeyValueStore = BrightnessStorage(context)

		private class BrightnessStorage(private val context: Context) :
		AbstractKeyedDataObservable<String>(),
		KeyValueStore,
		KeyedObserver<String>,
		DisplayListener {

		override fun contains(key: String) = key == KEY

		@Suppress("UNCHECKED_CAST")
		override fun <T : Any> getValue(key: String, valueType: Class<T>) =
		context.brightness.toFloat() as T

		override fun <T : Any> setValue(key: String, valueType: Class<T>, value: T?) {}

		override fun onFirstObserverAdded() {
		SettingsSystemStore.get(context)
		.addObserver(System.SCREEN_AUTO_BRIGHTNESS_ADJ, this, HandlerExecutor.main)

		override fun onDisplayChanged(displayId: Int) {
		context.notifyPreferenceChange(KEY)
		}
		}
		displayListener = listener
		context.displayManager.registerDisplayListener(
		listener,
		this,
		HandlerExecutor.main,
		/* eventFlags= */ 0,
		DisplayManager.PRIVATE_EVENT_FLAG_DISPLAY_BRIGHTNESS,
		)
		}

		override fun onStop(context: PreferenceLifecycleContext) {
		brightnessObserver?.let {
		SettingsSystemStore.get(context).removeObserver(System.SCREEN_AUTO_BRIGHTNESS_ADJ, it)
		brightnessObserver = null
		}
		override fun onLastObserverRemoved() {
		SettingsSystemStore.get(context).removeObserver(System.SCREEN_AUTO_BRIGHTNESS_ADJ, this)

		displayListener?.let {
		context.displayManager.unregisterDisplayListener(it)
		displayListener = null
		context.displayManager.unregisterDisplayListener(this)
		}

		override fun onKeyChanged(key: String, reason: Int) {
		notifyChange(KEY, DataChangeReason.UPDATE)
		}

		private val Context.displayManager: DisplayManager
		get() = getSystemService(DisplayManager::class.java)!!
		override fun onDisplayAdded(displayId: Int) {}

		override fun onDisplayRemoved(displayId: Int) {}

		override fun onDisplayChanged(displayId: Int) {
		notifyChange(KEY, DataChangeReason.UPDATE)
		}
		}

		override fun onPreferenceClick(preference: Preference): Boolean {
		val context = preference.context
		val intent =
		Intent(ACTION_SHOW_BRIGHTNESS_DIALOG)
		.setPackage(Utils.SYSTEMUI_PACKAGE_NAME)
		.putExtra(
		SettingsBaseActivity.EXTRA_PAGE_TRANSITION_TYPE,
		SettingsTransitionHelper.TransitionType.TRANSITION_NONE,
		)
		.putExtra(EXTRA_BRIGHTNESS_DIALOG_IS_FULL_WIDTH, true)
		val options =
		ActivityOptions.makeCustomAnimation(
		context,
		android.R.anim.fade_in,
		android.R.anim.fade_out,
		)
		context.startActivityForResult(preference.key, intent, 0, options.toBundle())
		context.startActivityForResult(preference.key, intent(context), 0, options.toBundle())
		return true
		}

		private fun getCurrentBrightness(context: Context): Double {
		val info: BrightnessInfo? = context.display.brightnessInfo
		companion object {
		const val KEY = "brightness"

		private val Context.displayManager: DisplayManager
		get() = getSystemService(DisplayManager::class.java)!!

		private val Context.brightness: Double
		get() {
		val info: BrightnessInfo? = display.brightnessInfo
		val value =
		info?.run {
		convertLinearToGammaFloat(brightness, brightnessMinimum, brightnessMaximum)
		@@ -159,9 +185,6 @@ class BrightnessLevelPreference :
		value < GAMMA_SPACE_MIN -> 0.0
		else -> (value - GAMMA_SPACE_MIN) / (GAMMA_SPACE_MAX - GAMMA_SPACE_MIN)
		}

		companion object {
		const val KEY = "brightness"
		}
		}
		// LINT.ThenChange(BrightnessLevelPreferenceController.java)