| /* |
| * Copyright 2021 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package androidx.wear.watchface |
| |
| import android.content.ContentResolver |
| import android.content.Intent |
| import android.provider.Settings |
| import androidx.annotation.RestrictTo |
| import kotlinx.coroutines.CoroutineScope |
| import kotlinx.coroutines.Deferred |
| import kotlinx.coroutines.flow.MutableStateFlow |
| import kotlinx.coroutines.launch |
| |
| /** @hide */ |
| @RestrictTo(RestrictTo.Scope.LIBRARY_GROUP) |
| public class BroadcastsObserver( |
| private val watchState: WatchState, |
| private val watchFaceHostApi: WatchFaceHostApi, |
| private val deferredWatchFaceImpl: Deferred<WatchFaceImpl>, |
| private val uiThreadCoroutineScope: CoroutineScope, |
| private val contentResolver: ContentResolver, |
| private val ambientSettingAvailable: Boolean |
| ) : BroadcastsReceiver.BroadcastEventObserver { |
| private var batteryLow: Boolean? = null |
| private var charging: Boolean? = null |
| private var sysUiHasSentWatchUiState: Boolean = false |
| |
| internal companion object { |
| internal const val AMBIENT_ENABLED_PATH = "ambient_enabled" |
| } |
| |
| override fun onActionTimeTick() { |
| // android.intent.action.TIME_TICK is sent by the system at the top of every minute |
| watchFaceHostApi.onActionTimeTick() |
| } |
| |
| override fun onActionTimeZoneChanged() { |
| uiThreadCoroutineScope.launch { |
| deferredWatchFaceImpl.await().onActionTimeZoneChanged() |
| } |
| } |
| |
| override fun onActionTimeChanged() { |
| uiThreadCoroutineScope.launch { |
| deferredWatchFaceImpl.await().onActionTimeChanged() |
| } |
| } |
| |
| override fun onActionBatteryLow() { |
| batteryLow = true |
| if (charging == false) { |
| updateBatteryLowAndNotChargingStatus(true) |
| } |
| } |
| |
| override fun onActionBatteryOkay() { |
| batteryLow = false |
| updateBatteryLowAndNotChargingStatus(false) |
| } |
| |
| override fun onActionPowerConnected() { |
| charging = true |
| updateBatteryLowAndNotChargingStatus(false) |
| } |
| |
| override fun onActionPowerDisconnected() { |
| charging = false |
| if (batteryLow == true) { |
| updateBatteryLowAndNotChargingStatus(true) |
| } |
| } |
| |
| override fun onMockTime(intent: Intent) { |
| uiThreadCoroutineScope.launch { |
| deferredWatchFaceImpl.await().onMockTime(intent) |
| } |
| } |
| |
| private fun updateBatteryLowAndNotChargingStatus(value: Boolean) { |
| val isBatteryLowAndNotCharging = |
| watchState.isBatteryLowAndNotCharging as MutableStateFlow |
| if (!isBatteryLowAndNotCharging.hasValue() || value != isBatteryLowAndNotCharging.value) { |
| isBatteryLowAndNotCharging.value = value |
| watchFaceHostApi.invalidate() |
| } |
| } |
| |
| fun onSysUiHasSentWatchUiState() { |
| sysUiHasSentWatchUiState = true |
| } |
| |
| override fun onActionScreenOff() { |
| // Before SysUI has connected, we use ActionScreenOn/ActionScreenOff as a trigger to query |
| // AMBIENT_ENABLED_PATH in order to determine if the device os ambient or not. |
| if (sysUiHasSentWatchUiState) { |
| return |
| } |
| |
| val isAmbient = watchState.isAmbient as MutableStateFlow |
| |
| // This is a backup signal for when SysUI is unable to deliver the ambient state (e.g. in |
| // direct boot mode). We need to distinguish between ACTION_SCREEN_OFF for entering ambient |
| // and the screen turning off. This is only possible from R. |
| isAmbient.value = if (ambientSettingAvailable) { |
| Settings.Global.getInt(contentResolver, AMBIENT_ENABLED_PATH, 0) == 1 |
| } else { |
| // On P and below we just have to assume we're not ambient. |
| false |
| } |
| } |
| |
| override fun onActionScreenOn() { |
| // Before SysUI has connected, we use ActionScreenOn/ActionScreenOff as a trigger to query |
| // AMBIENT_ENABLED_PATH in order to determine if the device os ambient or not. |
| if (sysUiHasSentWatchUiState) { |
| return |
| } |
| |
| val isAmbient = watchState.isAmbient as MutableStateFlow |
| isAmbient.value = false |
| } |
| } |
