1 /* <lambda>null2 * Copyright (C) 2025 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings.accessibility 18 19 import android.app.settings.SettingsEnums 20 import android.content.Context 21 import android.provider.Settings 22 import com.android.settings.R 23 import com.android.settings.core.SubSettingLauncher 24 import com.android.settingslib.datastore.HandlerExecutor 25 import com.android.settingslib.datastore.KeyedObserver 26 import com.android.settingslib.datastore.SettingsSecureStore 27 import com.android.settingslib.metadata.PreferenceLifecycleContext 28 import com.android.settingslib.metadata.PreferenceLifecycleProvider 29 import com.android.settingslib.metadata.PreferenceMetadata 30 import com.android.settingslib.metadata.PreferenceSummaryProvider 31 32 class ColorInversionPreference : PreferenceMetadata, PreferenceSummaryProvider, 33 PreferenceLifecycleProvider { 34 override val key: String 35 get() = PREFERENCE_KEY 36 override val title: Int 37 get() = R.string.accessibility_display_inversion_preference_title 38 39 override val icon: Int 40 get() = R.drawable.ic_color_inversion 41 42 override val keywords: Int 43 get() = R.string.keywords_color_inversion 44 45 private var mSettingsKeyedObserver: KeyedObserver<String>? = null 46 47 override fun intent(context: Context) = 48 SubSettingLauncher(context) 49 .setDestination(ToggleColorInversionPreferenceFragment::class.java.name) 50 .setSourceMetricsCategory(SettingsEnums.ACCESSIBILITY_COLOR_AND_MOTION) 51 .toIntent() 52 53 override fun getSummary(context: Context): CharSequence? { 54 return AccessibilityUtil.getSummary( 55 context, 56 SETTING_KEY, 57 R.string.color_inversion_state_on, R.string.color_inversion_state_off 58 ) 59 } 60 61 override fun onStart(context: PreferenceLifecycleContext) { 62 val observer = 63 KeyedObserver<String> { _, _ -> context.notifyPreferenceChange(PREFERENCE_KEY) } 64 mSettingsKeyedObserver = observer 65 val storage = SettingsSecureStore.get(context) 66 storage.addObserver(SETTING_KEY, observer, HandlerExecutor.main) 67 } 68 69 override fun onStop(context: PreferenceLifecycleContext) { 70 mSettingsKeyedObserver?.let { 71 val storage = SettingsSecureStore.get(context) 72 storage.removeObserver(SETTING_KEY, it) 73 mSettingsKeyedObserver = null 74 } 75 } 76 77 companion object { 78 const val PREFERENCE_KEY = "toggle_inversion_preference" 79 const val SETTING_KEY = Settings.Secure.ACCESSIBILITY_DISPLAY_INVERSION_ENABLED 80 } 81 } 82