1 /* 2 * Copyright (C) 2017 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.development; 18 19 import android.content.Context; 20 import android.provider.Settings; 21 import android.sysprop.DisplayProperties; 22 23 import androidx.annotation.VisibleForTesting; 24 import androidx.preference.Preference; 25 import androidx.preference.SwitchPreference; 26 27 import com.android.internal.app.LocalePicker; 28 import com.android.settings.core.PreferenceControllerMixin; 29 import com.android.settingslib.development.DeveloperOptionsPreferenceController; 30 31 public class RtlLayoutPreferenceController extends DeveloperOptionsPreferenceController implements 32 Preference.OnPreferenceChangeListener, PreferenceControllerMixin { 33 34 private static final String FORCE_RTL_LAYOUT_KEY = "force_rtl_layout_all_locales"; 35 36 @VisibleForTesting 37 static final int SETTING_VALUE_ON = 1; 38 @VisibleForTesting 39 static final int SETTING_VALUE_OFF = 0; 40 RtlLayoutPreferenceController(Context context)41 public RtlLayoutPreferenceController(Context context) { 42 super(context); 43 } 44 45 @Override getPreferenceKey()46 public String getPreferenceKey() { 47 return FORCE_RTL_LAYOUT_KEY; 48 } 49 50 @Override onPreferenceChange(Preference preference, Object newValue)51 public boolean onPreferenceChange(Preference preference, Object newValue) { 52 final boolean isEnabled = (Boolean) newValue; 53 writeToForceRtlLayoutSetting(isEnabled); 54 updateLocales(); 55 return true; 56 } 57 58 @Override updateState(Preference preference)59 public void updateState(Preference preference) { 60 int rtlLayoutMode = Settings.Global.getInt(mContext.getContentResolver(), 61 Settings.Global.DEVELOPMENT_FORCE_RTL, SETTING_VALUE_OFF); 62 ((SwitchPreference) mPreference).setChecked(rtlLayoutMode != SETTING_VALUE_OFF); 63 } 64 65 @Override onDeveloperOptionsSwitchDisabled()66 protected void onDeveloperOptionsSwitchDisabled() { 67 super.onDeveloperOptionsSwitchDisabled(); 68 writeToForceRtlLayoutSetting(false); 69 updateLocales(); 70 ((SwitchPreference) mPreference).setChecked(false); 71 } 72 73 @VisibleForTesting updateLocales()74 void updateLocales() { 75 LocalePicker.updateLocales(mContext.getResources().getConfiguration().getLocales()); 76 } 77 writeToForceRtlLayoutSetting(boolean isEnabled)78 private void writeToForceRtlLayoutSetting(boolean isEnabled) { 79 Settings.Global.putInt(mContext.getContentResolver(), 80 Settings.Global.DEVELOPMENT_FORCE_RTL, 81 isEnabled ? SETTING_VALUE_ON : SETTING_VALUE_OFF); 82 DisplayProperties.debug_force_rtl(isEnabled); 83 } 84 } 85