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/*
* Copyright (C) 2020 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 com.android.systemui.controls.dagger
import android.content.ContentResolver
import android.content.Context
import android.database.ContentObserver
import android.provider.Settings
import com.android.systemui.controls.controller.ControlsController
import com.android.systemui.controls.management.ControlsListingController
import com.android.systemui.controls.ui.ControlsUiController
import com.android.systemui.dagger.SysUISingleton
import com.android.systemui.settings.UserTracker
import com.android.systemui.statusbar.policy.KeyguardStateController
import com.android.systemui.util.settings.SecureSettings
import com.android.internal.widget.LockPatternUtils
import com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_BOOT
import dagger.Lazy
import java.util.Optional
import javax.inject.Inject
/**
* Pseudo-component to inject into classes outside `com.android.systemui.controls`.
*
* If `featureEnabled` is false, all the optionals should be empty. The controllers will only be
* instantiated if `featureEnabled` is true. Can also be queried for the availability of controls.
*/
@SysUISingleton
class ControlsComponent @Inject constructor(
@ControlsFeatureEnabled private val featureEnabled: Boolean,
private val context: Context,
private val lazyControlsController: Lazy<ControlsController>,
private val lazyControlsUiController: Lazy<ControlsUiController>,
private val lazyControlsListingController: Lazy<ControlsListingController>,
private val lockPatternUtils: LockPatternUtils,
private val keyguardStateController: KeyguardStateController,
private val userTracker: UserTracker,
private val secureSettings: SecureSettings
) {
private val contentResolver: ContentResolver
get() = context.contentResolver
private var canShowWhileLockedSetting = false
val showWhileLockedObserver = object : ContentObserver(null) {
override fun onChange(selfChange: Boolean) {
updateShowWhileLocked()
}
}
init {
if (featureEnabled) {
secureSettings.registerContentObserver(
Settings.Secure.getUriFor(Settings.Secure.LOCKSCREEN_SHOW_CONTROLS),
false, /* notifyForDescendants */
showWhileLockedObserver
)
updateShowWhileLocked()
}
}
fun getControlsController(): Optional<ControlsController> {
return if (featureEnabled) Optional.of(lazyControlsController.get()) else Optional.empty()
}
fun getControlsUiController(): Optional<ControlsUiController> {
return if (featureEnabled) Optional.of(lazyControlsUiController.get()) else Optional.empty()
}
fun getControlsListingController(): Optional<ControlsListingController> {
return if (featureEnabled) {
Optional.of(lazyControlsListingController.get())
} else {
Optional.empty()
}
}
/**
* @return true if controls are feature-enabled and the user has the setting enabled
*/
fun isEnabled() = featureEnabled
/**
* Returns one of 3 states:
* * AVAILABLE - Controls can be made visible
* * AVAILABLE_AFTER_UNLOCK - Controls can be made visible only after device unlock
* * UNAVAILABLE - Controls are not enabled
*/
fun getVisibility(): Visibility {
if (!isEnabled()) return Visibility.UNAVAILABLE
if (lockPatternUtils.getStrongAuthForUser(userTracker.userHandle.identifier)
== STRONG_AUTH_REQUIRED_AFTER_BOOT) {
return Visibility.AVAILABLE_AFTER_UNLOCK
}
if (!canShowWhileLockedSetting && !keyguardStateController.isUnlocked()) {
return Visibility.AVAILABLE_AFTER_UNLOCK
}
return Visibility.AVAILABLE
}
private fun updateShowWhileLocked() {
canShowWhileLockedSetting = secureSettings.getInt(
Settings.Secure.LOCKSCREEN_SHOW_CONTROLS, 0) != 0
}
enum class Visibility {
AVAILABLE, AVAILABLE_AFTER_UNLOCK, UNAVAILABLE
}
}
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