1 /* 2 * Copyright (C) 2019 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 static com.android.internal.accessibility.AccessibilityShortcutController.COLOR_INVERSION_COMPONENT_NAME; 20 import static com.android.settings.accessibility.AccessibilityStatsLogUtils.logAccessibilityServiceEnabled; 21 import static com.android.settings.accessibility.AccessibilityUtil.State.OFF; 22 import static com.android.settings.accessibility.AccessibilityUtil.State.ON; 23 24 import android.app.settings.SettingsEnums; 25 import android.content.ContentResolver; 26 import android.net.Uri; 27 import android.os.Bundle; 28 import android.os.Handler; 29 import android.provider.Settings; 30 import android.view.LayoutInflater; 31 import android.view.View; 32 import android.view.ViewGroup; 33 34 import androidx.preference.SwitchPreference; 35 36 import com.android.settings.R; 37 38 import java.util.ArrayList; 39 import java.util.List; 40 41 /** Settings page for color inversion. */ 42 public class ToggleColorInversionPreferenceFragment extends ToggleFeaturePreferenceFragment { 43 44 private static final String ENABLED = Settings.Secure.ACCESSIBILITY_DISPLAY_INVERSION_ENABLED; 45 private final Handler mHandler = new Handler(); 46 private SettingsContentObserver mSettingsContentObserver; 47 48 @Override getMetricsCategory()49 public int getMetricsCategory() { 50 return SettingsEnums.ACCESSIBILITY_COLOR_INVERSION_SETTINGS; 51 } 52 53 @Override onPreferenceToggled(String preferenceKey, boolean enabled)54 protected void onPreferenceToggled(String preferenceKey, boolean enabled) { 55 logAccessibilityServiceEnabled(mComponentName, enabled); 56 Settings.Secure.putInt(getContentResolver(), ENABLED, enabled ? ON : OFF); 57 } 58 59 @Override getPreferenceScreenResId()60 protected int getPreferenceScreenResId() { 61 return R.xml.accessibility_color_inversion_settings; 62 } 63 64 @Override onRemoveSwitchPreferenceToggleSwitch()65 protected void onRemoveSwitchPreferenceToggleSwitch() { 66 super.onRemoveSwitchPreferenceToggleSwitch(); 67 mToggleServiceDividerSwitchPreference.setOnPreferenceClickListener(null); 68 } 69 70 @Override updateToggleServiceTitle(SwitchPreference switchPreference)71 protected void updateToggleServiceTitle(SwitchPreference switchPreference) { 72 switchPreference.setTitle(R.string.accessibility_display_inversion_switch_title); 73 } 74 75 @Override onInstallSwitchPreferenceToggleSwitch()76 protected void onInstallSwitchPreferenceToggleSwitch() { 77 super.onInstallSwitchPreferenceToggleSwitch(); 78 updateSwitchBarToggleSwitch(); 79 mToggleServiceDividerSwitchPreference.setOnPreferenceClickListener((preference) -> { 80 boolean checked = ((SwitchPreference) preference).isChecked(); 81 onPreferenceToggled(mPreferenceKey, checked); 82 return false; 83 }); 84 } 85 86 @Override onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)87 public View onCreateView(LayoutInflater inflater, ViewGroup container, 88 Bundle savedInstanceState) { 89 mComponentName = COLOR_INVERSION_COMPONENT_NAME; 90 mPackageName = getText(R.string.accessibility_display_inversion_preference_title); 91 mHtmlDescription = getText(R.string.accessibility_display_inversion_preference_subtitle); 92 mImageUri = new Uri.Builder().scheme(ContentResolver.SCHEME_ANDROID_RESOURCE) 93 .authority(getPrefContext().getPackageName()) 94 .appendPath(String.valueOf(R.drawable.accessibility_color_inversion_banner)) 95 .build(); 96 final List<String> enableServiceFeatureKeys = new ArrayList<>(/* initialCapacity= */ 1); 97 enableServiceFeatureKeys.add(ENABLED); 98 mSettingsContentObserver = new SettingsContentObserver(mHandler, enableServiceFeatureKeys) { 99 @Override 100 public void onChange(boolean selfChange, Uri uri) { 101 updateSwitchBarToggleSwitch(); 102 } 103 }; 104 return super.onCreateView(inflater, container, savedInstanceState); 105 } 106 107 @Override onResume()108 public void onResume() { 109 super.onResume(); 110 updateSwitchBarToggleSwitch(); 111 mSettingsContentObserver.register(getContentResolver()); 112 } 113 114 @Override onPause()115 public void onPause() { 116 mSettingsContentObserver.unregister(getContentResolver()); 117 super.onPause(); 118 } 119 120 @Override getHelpResource()121 public int getHelpResource() { 122 return R.string.help_url_color_inversion; 123 } 124 125 @Override onSettingsClicked(ShortcutPreference preference)126 public void onSettingsClicked(ShortcutPreference preference) { 127 super.onSettingsClicked(preference); 128 showDialog(DialogEnums.EDIT_SHORTCUT); 129 } 130 131 @Override getUserShortcutTypes()132 int getUserShortcutTypes() { 133 return AccessibilityUtil.getUserShortcutTypesFromSettings(getPrefContext(), 134 mComponentName); 135 } 136 updateSwitchBarToggleSwitch()137 private void updateSwitchBarToggleSwitch() { 138 final boolean checked = Settings.Secure.getInt(getContentResolver(), ENABLED, OFF) == ON; 139 if (mToggleServiceDividerSwitchPreference.isChecked() == checked) { 140 return; 141 } 142 mToggleServiceDividerSwitchPreference.setChecked(checked); 143 } 144 } 145