| /* |
| * Copyright (C) 2017 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.settings.accessibility; |
| |
| import android.accessibilityservice.AccessibilityServiceInfo; |
| import android.annotation.Nullable; |
| import android.content.ComponentName; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.database.ContentObserver; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.UserHandle; |
| import android.provider.Settings; |
| import android.support.v14.preference.SwitchPreference; |
| import android.support.v7.preference.Preference; |
| import android.view.accessibility.AccessibilityManager; |
| import android.widget.Switch; |
| |
| import com.android.internal.accessibility.AccessibilityShortcutController; |
| import com.android.internal.logging.nano.MetricsProto.MetricsEvent; |
| import com.android.settings.R; |
| import com.android.settings.search.BaseSearchIndexProvider; |
| import com.android.settings.search.Indexable; |
| import com.android.settingslib.accessibility.AccessibilityUtils; |
| |
| /** |
| * Settings page for accessibility shortcut |
| */ |
| public class AccessibilityShortcutPreferenceFragment extends ToggleFeaturePreferenceFragment |
| implements Indexable { |
| |
| public static final String SHORTCUT_SERVICE_KEY = "accessibility_shortcut_service"; |
| public static final String ON_LOCK_SCREEN_KEY = "accessibility_shortcut_on_lock_screen"; |
| |
| private Preference mServicePreference; |
| private SwitchPreference mOnLockScreenSwitchPreference; |
| private final ContentObserver mContentObserver = new ContentObserver(new Handler()) { |
| @Override |
| public void onChange(boolean selfChange) { |
| updatePreferences(); |
| } |
| }; |
| |
| @Override |
| public int getMetricsCategory() { |
| return MetricsEvent.ACCESSIBILITY_TOGGLE_GLOBAL_GESTURE; |
| } |
| |
| @Override |
| public int getHelpResource() { |
| return R.string.help_url_accessibility_shortcut; |
| } |
| |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| mServicePreference = findPreference(SHORTCUT_SERVICE_KEY); |
| mOnLockScreenSwitchPreference = (SwitchPreference) findPreference(ON_LOCK_SCREEN_KEY); |
| mOnLockScreenSwitchPreference.setOnPreferenceChangeListener((Preference p, Object o) -> { |
| Settings.Secure.putInt(getContentResolver(), |
| Settings.Secure.ACCESSIBILITY_SHORTCUT_ON_LOCK_SCREEN, |
| ((Boolean) o) ? 1 : 0); |
| return true; |
| }); |
| mFooterPreferenceMixin.createFooterPreference() |
| .setTitle(R.string.accessibility_shortcut_description); |
| } |
| |
| @Override |
| public void onResume() { |
| super.onResume(); |
| updatePreferences(); |
| getContentResolver().registerContentObserver( |
| Settings.Secure.getUriFor(Settings.Secure.ACCESSIBILITY_SHORTCUT_DIALOG_SHOWN), |
| false, mContentObserver); |
| } |
| |
| @Override |
| public void onPause() { |
| getContentResolver().unregisterContentObserver(mContentObserver); |
| super.onPause(); |
| } |
| |
| @Override |
| protected int getPreferenceScreenResId() { |
| return R.xml.accessibility_shortcut_settings; |
| } |
| |
| @Override |
| protected void onInstallSwitchBarToggleSwitch() { |
| super.onInstallSwitchBarToggleSwitch(); |
| mSwitchBar.addOnSwitchChangeListener((Switch switchView, boolean enabled) -> { |
| Context context = getContext(); |
| if (enabled && !shortcutFeatureAvailable(context)) { |
| // If no service is configured, we'll disable the shortcut shortly. Give the |
| // user a chance to select a service. We'll update the preferences when we resume. |
| Settings.Secure.putInt( |
| getContentResolver(), Settings.Secure.ACCESSIBILITY_SHORTCUT_ENABLED, 1); |
| mServicePreference.setEnabled(true); |
| mServicePreference.performClick(); |
| } else { |
| onPreferenceToggled(Settings.Secure.ACCESSIBILITY_SHORTCUT_ENABLED, enabled); |
| } |
| }); |
| } |
| |
| @Override |
| protected void onPreferenceToggled(String preferenceKey, boolean enabled) { |
| Settings.Secure.putInt(getContentResolver(), preferenceKey, enabled ? 1 : 0); |
| updatePreferences(); |
| } |
| |
| private void updatePreferences() { |
| ContentResolver cr = getContentResolver(); |
| Context context = getContext(); |
| mServicePreference.setSummary(getServiceName(context)); |
| if (!shortcutFeatureAvailable(context)) { |
| // If no service is configured, make sure the overall shortcut is turned off |
| Settings.Secure.putInt( |
| getContentResolver(), Settings.Secure.ACCESSIBILITY_SHORTCUT_ENABLED, 0); |
| } |
| boolean isEnabled = Settings.Secure |
| .getInt(cr, Settings.Secure.ACCESSIBILITY_SHORTCUT_ENABLED, 1) == 1; |
| mSwitchBar.setChecked(isEnabled); |
| // The shortcut is enabled by default on the lock screen as long as the user has |
| // enabled the shortcut with the warning dialog |
| final int dialogShown = Settings.Secure.getInt( |
| cr, Settings.Secure.ACCESSIBILITY_SHORTCUT_DIALOG_SHOWN, 0); |
| final boolean enabledFromLockScreen = Settings.Secure.getInt( |
| cr, Settings.Secure.ACCESSIBILITY_SHORTCUT_ON_LOCK_SCREEN, dialogShown) == 1; |
| mOnLockScreenSwitchPreference.setChecked(enabledFromLockScreen); |
| // Only enable changing the service and lock screen behavior if the shortcut is on |
| mServicePreference.setEnabled(mToggleSwitch.isChecked()); |
| mOnLockScreenSwitchPreference.setEnabled(mToggleSwitch.isChecked()); |
| } |
| |
| /** |
| * Get the user-visible name of the service currently selected for the shortcut. |
| * |
| * @param context The current context |
| * @return The name of the service or a string saying that none is selected. |
| */ |
| public static CharSequence getServiceName(Context context) { |
| if (!shortcutFeatureAvailable(context)) { |
| return context.getString(R.string.accessibility_no_service_selected); |
| } |
| AccessibilityServiceInfo shortcutServiceInfo = getServiceInfo(context); |
| if (shortcutServiceInfo != null) { |
| return shortcutServiceInfo.getResolveInfo().loadLabel(context.getPackageManager()); |
| } |
| return AccessibilityShortcutController.getFrameworkShortcutFeaturesMap() |
| .get(getShortcutComponent(context)).getLabel(context); |
| } |
| |
| private static AccessibilityServiceInfo getServiceInfo(Context context) { |
| return AccessibilityManager.getInstance(context) |
| .getInstalledServiceInfoWithComponentName(getShortcutComponent(context)); |
| } |
| |
| private static boolean shortcutFeatureAvailable(Context context) { |
| ComponentName shortcutFeature = getShortcutComponent(context); |
| if (shortcutFeature == null) return false; |
| |
| if (AccessibilityShortcutController.getFrameworkShortcutFeaturesMap() |
| .containsKey(shortcutFeature)) { |
| return true; |
| } |
| return getServiceInfo(context) != null; |
| } |
| |
| private static @Nullable ComponentName getShortcutComponent(Context context) { |
| String componentNameString = AccessibilityUtils.getShortcutTargetServiceComponentNameString( |
| context, UserHandle.myUserId()); |
| if (componentNameString == null) return null; |
| return ComponentName.unflattenFromString(componentNameString); |
| } |
| |
| public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = |
| new BaseSearchIndexProvider() { |
| // This fragment is for details of the shortcut. Only the shortcut itself needs |
| // to be indexed. |
| protected boolean isPageSearchEnabled(Context context) { |
| return false; |
| } |
| }; |
| } |