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/*
* Copyright (C) 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 com.android.systemui.qs
import androidx.annotation.VisibleForTesting
import com.android.systemui.settings.brightness.BrightnessController
import com.android.systemui.settings.brightness.BrightnessSliderController
import com.android.systemui.settings.brightness.MirroredBrightnessController
import com.android.systemui.statusbar.policy.BrightnessMirrorController
import javax.inject.Inject
/**
* Controls brightness slider in QQS, which is visible only in split shade. It's responsible for
* showing/hiding it when appropriate and (un)registering listeners
*/
class QuickQSBrightnessController @VisibleForTesting constructor(
private val brightnessControllerFactory: () -> BrightnessController
) : MirroredBrightnessController {
@Inject constructor(
brightnessControllerFactory: BrightnessController.Factory,
brightnessSliderControllerFactory: BrightnessSliderController.Factory,
quickQSPanel: QuickQSPanel
) : this(brightnessControllerFactory = {
val slider = brightnessSliderControllerFactory.create(quickQSPanel.context,
quickQSPanel)
slider.init()
quickQSPanel.setBrightnessView(slider.rootView)
brightnessControllerFactory.create(slider)
})
private var isListening = false
private var brightnessController: BrightnessController? = null
private var mirrorController: BrightnessMirrorController? = null
fun init(shouldUseSplitNotificationShade: Boolean) {
refreshVisibility(shouldUseSplitNotificationShade)
}
/**
* Starts/Stops listening for brightness changing events.
* It's fine to call this function even if slider is not visible (which would be the case for
* all small screen devices), it will just do nothing in that case
*/
fun setListening(listening: Boolean) {
if (listening) {
// controller can be null when slider was never shown
if (!isListening && brightnessController != null) {
brightnessController?.registerCallbacks()
isListening = true
}
} else {
brightnessController?.unregisterCallbacks()
isListening = false
}
}
fun checkRestrictionAndSetEnabled() {
brightnessController?.checkRestrictionAndSetEnabled()
}
fun refreshVisibility(shouldUseSplitNotificationShade: Boolean) {
if (shouldUseSplitNotificationShade) {
showBrightnessSlider()
} else {
hideBrightnessSlider()
}
}
override fun setMirror(controller: BrightnessMirrorController) {
mirrorController = controller
mirrorController?.let { brightnessController?.setMirror(it) }
}
private fun hideBrightnessSlider() {
brightnessController?.hideSlider()
}
private fun showBrightnessSlider() {
if (brightnessController == null) {
brightnessController = brightnessControllerFactory()
mirrorController?.also { brightnessController?.setMirror(it) }
brightnessController?.registerCallbacks()
isListening = true
}
brightnessController?.showSlider()
}
}
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