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      1 /*
      2  * Copyright (C) 2014 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.systemui.qs.tiles;
     18 
     19 import com.android.systemui.R;
     20 import com.android.systemui.qs.QSTile;
     21 import com.android.systemui.statusbar.policy.KeyguardMonitor;
     22 import com.android.systemui.statusbar.policy.LocationController;
     23 import com.android.systemui.statusbar.policy.LocationController.LocationSettingsChangeCallback;
     24 
     25 /** Quick settings tile: Location **/
     26 public class LocationTile extends QSTile<QSTile.BooleanState> {
     27 
     28     private final AnimationIcon mEnable =
     29             new AnimationIcon(R.drawable.ic_signal_location_enable_animation);
     30     private final AnimationIcon mDisable =
     31             new AnimationIcon(R.drawable.ic_signal_location_disable_animation);
     32 
     33     private final LocationController mController;
     34     private final KeyguardMonitor mKeyguard;
     35     private final Callback mCallback = new Callback();
     36 
     37     public LocationTile(Host host) {
     38         super(host);
     39         mController = host.getLocationController();
     40         mKeyguard = host.getKeyguardMonitor();
     41     }
     42 
     43     @Override
     44     protected BooleanState newTileState() {
     45         return new BooleanState();
     46     }
     47 
     48     @Override
     49     public void setListening(boolean listening) {
     50         if (listening) {
     51             mController.addSettingsChangedCallback(mCallback);
     52             mKeyguard.addCallback(mCallback);
     53         } else {
     54             mController.removeSettingsChangedCallback(mCallback);
     55             mKeyguard.removeCallback(mCallback);
     56         }
     57     }
     58 
     59     @Override
     60     protected void handleClick() {
     61         final boolean wasEnabled = (Boolean) mState.value;
     62         mController.setLocationEnabled(!wasEnabled);
     63         mEnable.setAllowAnimation(true);
     64         mDisable.setAllowAnimation(true);
     65     }
     66 
     67     @Override
     68     protected void handleUpdateState(BooleanState state, Object arg) {
     69         final boolean locationEnabled =  mController.isLocationEnabled();
     70 
     71         // Work around for bug 15916487: don't show location tile on top of lock screen. After the
     72         // bug is fixed, this should be reverted to only hiding it on secure lock screens:
     73         // state.visible = !(mKeyguard.isSecure() && mKeyguard.isShowing());
     74         state.visible = !mKeyguard.isShowing();
     75         state.value = locationEnabled;
     76         if (locationEnabled) {
     77             state.icon = mEnable;
     78             state.label = mContext.getString(R.string.quick_settings_location_label);
     79             state.contentDescription = mContext.getString(
     80                     R.string.accessibility_quick_settings_location_on);
     81         } else {
     82             state.icon = mDisable;
     83             state.label = mContext.getString(R.string.quick_settings_location_label);
     84             state.contentDescription = mContext.getString(
     85                     R.string.accessibility_quick_settings_location_off);
     86         }
     87     }
     88 
     89     @Override
     90     protected String composeChangeAnnouncement() {
     91         if (mState.value) {
     92             return mContext.getString(R.string.accessibility_quick_settings_location_changed_on);
     93         } else {
     94             return mContext.getString(R.string.accessibility_quick_settings_location_changed_off);
     95         }
     96     }
     97 
     98     private final class Callback implements LocationSettingsChangeCallback,
     99             KeyguardMonitor.Callback {
    100         @Override
    101         public void onLocationSettingsChanged(boolean enabled) {
    102             refreshState();
    103         }
    104 
    105         @Override
    106         public void onKeyguardChanged() {
    107             refreshState();
    108         }
    109     };
    110 }
    111