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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
      5  * except in compliance with the License. You may obtain a copy of the License at
      6  *
      7  *      http://www.apache.org/licenses/LICENSE-2.0
      8  *
      9  * Unless required by applicable law or agreed to in writing, software distributed under the
     10  * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     11  * KIND, either express or implied. See the License for the specific language governing
     12  * permissions and limitations under the License.
     13  */
     14 
     15 package com.android.systemui.qs.tiles;
     16 
     17 import android.content.DialogInterface;
     18 import android.content.Intent;
     19 import android.widget.Switch;
     20 
     21 import com.android.internal.logging.MetricsLogger;
     22 import com.android.internal.logging.MetricsProto.MetricsEvent;
     23 import com.android.systemui.Prefs;
     24 import com.android.systemui.R;
     25 import com.android.systemui.qs.QSTile;
     26 import com.android.systemui.statusbar.phone.SystemUIDialog;
     27 import com.android.systemui.statusbar.policy.DataSaverController;
     28 
     29 public class DataSaverTile extends QSTile<QSTile.BooleanState> implements
     30         DataSaverController.Listener{
     31 
     32     private final DataSaverController mDataSaverController;
     33 
     34     public DataSaverTile(Host host) {
     35         super(host);
     36         mDataSaverController = host.getNetworkController().getDataSaverController();
     37     }
     38 
     39     @Override
     40     public BooleanState newTileState() {
     41         return new BooleanState();
     42     }
     43 
     44     @Override
     45     public void setListening(boolean listening) {
     46         if (listening) {
     47             mDataSaverController.addListener(this);
     48         } else {
     49             mDataSaverController.remListener(this);
     50         }
     51     }
     52 
     53     @Override
     54     public Intent getLongClickIntent() {
     55         return CellularTile.CELLULAR_SETTINGS;
     56     }
     57 
     58     @Override
     59     protected void handleClick() {
     60         if (mState.value
     61                 || Prefs.getBoolean(mContext, Prefs.Key.QS_DATA_SAVER_DIALOG_SHOWN, false)) {
     62             // Do it right away.
     63             toggleDataSaver();
     64             return;
     65         }
     66         // Shows dialog first
     67         SystemUIDialog dialog = new SystemUIDialog(mContext);
     68         dialog.setTitle(com.android.internal.R.string.data_saver_enable_title);
     69         dialog.setMessage(com.android.internal.R.string.data_saver_description);
     70         dialog.setPositiveButton(com.android.internal.R.string.data_saver_enable_button,
     71                 new DialogInterface.OnClickListener() {
     72                     @Override
     73                     public void onClick(DialogInterface dialog, int which) {
     74                         toggleDataSaver();
     75                     }
     76                 });
     77         dialog.setNegativeButton(com.android.internal.R.string.cancel, null);
     78         dialog.setShowForAllUsers(true);
     79         dialog.show();
     80         Prefs.putBoolean(mContext, Prefs.Key.QS_DATA_SAVER_DIALOG_SHOWN, true);
     81     }
     82 
     83     private void toggleDataSaver() {
     84         mState.value = !mDataSaverController.isDataSaverEnabled();
     85         MetricsLogger.action(mContext, getMetricsCategory(), mState.value);
     86         mDataSaverController.setDataSaverEnabled(mState.value);
     87         refreshState(mState.value);
     88     }
     89 
     90     @Override
     91     public CharSequence getTileLabel() {
     92         return mContext.getString(R.string.data_saver);
     93     }
     94 
     95     @Override
     96     protected void handleUpdateState(BooleanState state, Object arg) {
     97         state.value = arg instanceof Boolean ? (Boolean) arg
     98                 : mDataSaverController.isDataSaverEnabled();
     99         state.label = mContext.getString(R.string.data_saver);
    100         state.contentDescription = state.label;
    101         state.icon = ResourceIcon.get(state.value ? R.drawable.ic_data_saver
    102                 : R.drawable.ic_data_saver_off);
    103         state.minimalAccessibilityClassName = state.expandedAccessibilityClassName
    104                 = Switch.class.getName();
    105     }
    106 
    107     @Override
    108     public int getMetricsCategory() {
    109         return MetricsEvent.QS_DATA_SAVER;
    110     }
    111 
    112     @Override
    113     protected String composeChangeAnnouncement() {
    114         if (mState.value) {
    115             return mContext.getString(R.string.accessibility_quick_settings_data_saver_changed_on);
    116         } else {
    117             return mContext.getString(R.string.accessibility_quick_settings_data_saver_changed_off);
    118         }
    119     }
    120 
    121     @Override
    122     public void onDataSaverChanged(boolean isDataSaving) {
    123         refreshState(isDataSaving);
    124     }
    125 }