/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the
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* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*/
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package com.android.systemui.statusbar.phone
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import android.content.Context
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import android.content.pm.ActivityInfo
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import android.content.res.Configuration
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import android.os.LocaleList
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import com.android.systemui.ConfigurationChangedReceiver
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import com.android.systemui.statusbar.policy.ConfigurationController
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import java.util.ArrayList
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class ConfigurationControllerImpl(context: Context)
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: ConfigurationController, ConfigurationChangedReceiver {
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private val listeners: MutableList<ConfigurationController.ConfigurationListener> = ArrayList()
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private val lastConfig = Configuration()
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private var density: Int = 0
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private var fontScale: Float = 0.toFloat()
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private val inCarMode: Boolean
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private var uiMode: Int = 0
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private var localeList: LocaleList? = null
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private val context: Context
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init {
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val currentConfig = context.resources.configuration
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this.context = context
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fontScale = currentConfig.fontScale
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density = currentConfig.densityDpi
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inCarMode = currentConfig.uiMode and Configuration.UI_MODE_TYPE_MASK ==
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Configuration.UI_MODE_TYPE_CAR
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uiMode = currentConfig.uiMode and Configuration.UI_MODE_NIGHT_MASK
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// localeList = currentConfig.locales
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localeList = null
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}
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override fun notifyThemeChanged() {
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val listeners = ArrayList(listeners)
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listeners.filterForEach({ this.listeners.contains(it) }) {
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it.onThemeChanged()
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}
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}
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override fun onConfigurationChanged(newConfig: Configuration) {
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// Avoid concurrent modification exception
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val listeners = ArrayList(listeners)
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listeners.filterForEach({ this.listeners.contains(it) }) {
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it.onConfigChanged(newConfig)
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}
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val fontScale = newConfig.fontScale
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val density = newConfig.densityDpi
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val uiMode = newConfig.uiMode and Configuration.UI_MODE_NIGHT_MASK
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val uiModeChanged = uiMode != this.uiMode
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if (density != this.density || fontScale != this.fontScale ||
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inCarMode && uiModeChanged) {
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listeners.filterForEach({ this.listeners.contains(it) }) {
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it.onDensityOrFontScaleChanged()
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}
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this.density = density
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this.fontScale = fontScale
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}
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val localeList = newConfig.locales
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if (localeList != this.localeList) {
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this.localeList = localeList
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listeners.filterForEach({ this.listeners.contains(it) }) {
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it.onLocaleListChanged()
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}
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}
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if (uiModeChanged) {
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// We need to force the style re-evaluation to make sure that it's up to date
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// and attrs were reloaded.
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context.theme.applyStyle(context.themeResId, true)
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this.uiMode = uiMode
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listeners.filterForEach({ this.listeners.contains(it) }) {
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it.onUiModeChanged()
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}
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}
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if (lastConfig.updateFrom(newConfig) and ActivityInfo.CONFIG_ASSETS_PATHS != 0) {
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listeners.filterForEach({ this.listeners.contains(it) }) {
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it.onOverlayChanged()
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}
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}
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}
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override fun addCallback(listener: ConfigurationController.ConfigurationListener) {
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listeners.add(listener)
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listener.onDensityOrFontScaleChanged()
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}
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override fun removeCallback(listener: ConfigurationController.ConfigurationListener) {
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listeners.remove(listener)
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}
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}
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// This could be done with a Collection.filter and Collection.forEach, but Collection.filter
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// creates a new array to store them in and we really don't need that here, so this provides
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// a little more optimized inline version.
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inline fun <T> Collection<T>.filterForEach(f: (T) -> Boolean, execute: (T) -> Unit) {
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forEach {
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if (f.invoke(it)) {
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execute.invoke(it)
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}
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}
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}
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