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 DaltonizerPreference : PreferenceMetadata, PreferenceSummaryProvider, 33 PreferenceLifecycleProvider { 34 override val key: String 35 get() = PREFERENCE_KEY 36 37 override val title: Int 38 get() = com.android.settingslib.R.string.accessibility_display_daltonizer_preference_title 39 40 override val icon: Int 41 get() = R.drawable.ic_daltonizer 42 43 override val keywords: Int 44 get() = R.string.keywords_color_correction 45 46 private var mSettingsKeyedObserver: KeyedObserver<String>? = null 47 48 override fun intent(context: Context) = 49 SubSettingLauncher(context) 50 .setDestination(ToggleDaltonizerPreferenceFragment::class.java.name) 51 .setSourceMetricsCategory(SettingsEnums.ACCESSIBILITY_COLOR_AND_MOTION) 52 .toIntent() 53 54 override fun getSummary(context: Context): CharSequence? { 55 return AccessibilityUtil.getSummary( 56 context, 57 SETTING_KEY, 58 R.string.daltonizer_state_on, R.string.daltonizer_state_off 59 ) 60 } 61 62 override fun onStart(context: PreferenceLifecycleContext) { 63 val observer = 64 KeyedObserver<String> { _, _ -> context.notifyPreferenceChange(PREFERENCE_KEY) } 65 mSettingsKeyedObserver = observer 66 val storage = SettingsSecureStore.get(context) 67 storage.addObserver(SETTING_KEY, observer, HandlerExecutor.main) 68 } 69 70 override fun onStop(context: PreferenceLifecycleContext) { 71 mSettingsKeyedObserver?.let { 72 val storage = SettingsSecureStore.get(context) 73 storage.removeObserver(SETTING_KEY, it) 74 mSettingsKeyedObserver = null 75 } 76 } 77 78 companion object { 79 const val PREFERENCE_KEY = "daltonizer_preference" 80 const val SETTING_KEY = Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED 81 } 82 }