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      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.gestures;
     18 
     19 import static android.provider.Settings.Secure.ASSIST_GESTURE_ENABLED;
     20 import static android.provider.Settings.Secure.ASSIST_GESTURE_SILENCE_ALERTS_ENABLED;
     21 
     22 import android.content.Context;
     23 import android.content.Intent;
     24 import android.provider.Settings;
     25 import android.support.v7.preference.Preference;
     26 import android.support.v7.preference.PreferenceScreen;
     27 
     28 import com.android.internal.annotations.VisibleForTesting;
     29 import com.android.settings.R;
     30 import com.android.settings.overlay.FeatureFactory;
     31 import com.android.settings.search.DatabaseIndexingUtils;
     32 import com.android.settings.search.InlineSwitchPayload;
     33 import com.android.settings.search.ResultPayload;
     34 
     35 public class AssistGestureSettingsPreferenceController extends GesturePreferenceController {
     36 
     37     private static final String PREF_KEY_VIDEO = "gesture_assist_video";
     38 
     39     private static final String SECURE_KEY_ASSIST = ASSIST_GESTURE_ENABLED;
     40     private static final String SECURE_KEY_SILENCE = ASSIST_GESTURE_SILENCE_ALERTS_ENABLED;
     41     private static final int ON = 1;
     42     private static final int OFF = 0;
     43 
     44     private final String mAssistGesturePrefKey;
     45     private final AssistGestureFeatureProvider mFeatureProvider;
     46     private boolean mWasAvailable;
     47 
     48     private PreferenceScreen mScreen;
     49     private Preference mPreference;
     50 
     51     @VisibleForTesting
     52     boolean mAssistOnly;
     53 
     54     public AssistGestureSettingsPreferenceController(Context context,
     55             String key) {
     56         super(context, key);
     57         mFeatureProvider = FeatureFactory.getFactory(context).getAssistGestureFeatureProvider();
     58         mWasAvailable = isAvailable();
     59         mAssistGesturePrefKey = key;
     60     }
     61 
     62     @Override
     63     public int getAvailabilityStatus() {
     64         final boolean isAvailable = mAssistOnly ? mFeatureProvider.isSupported(mContext)
     65                 : mFeatureProvider.isSensorAvailable(mContext);
     66         return isAvailable ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
     67     }
     68 
     69     @Override
     70     public void displayPreference(PreferenceScreen screen) {
     71         mScreen = screen;
     72         mPreference = screen.findPreference(getPreferenceKey());
     73         super.displayPreference(screen);
     74     }
     75 
     76     @Override
     77     public void onResume() {
     78         if (mWasAvailable != isAvailable()) {
     79             // Only update the preference visibility if the availability has changed -- otherwise
     80             // the preference may be incorrectly added to screens with collapsed sections.
     81             updatePreference();
     82             mWasAvailable = isAvailable();
     83         }
     84     }
     85 
     86     public AssistGestureSettingsPreferenceController setAssistOnly(boolean assistOnly) {
     87         mAssistOnly = assistOnly;
     88         return this;
     89     }
     90 
     91     private void updatePreference() {
     92         if (mPreference == null) {
     93             return;
     94         }
     95 
     96         if (isAvailable()) {
     97             if (mScreen.findPreference(getPreferenceKey()) == null) {
     98                 mScreen.addPreference(mPreference);
     99             }
    100         } else {
    101             mScreen.removePreference(mPreference);
    102         }
    103     }
    104 
    105     private boolean isAssistGestureEnabled() {
    106         return Settings.Secure.getInt(mContext.getContentResolver(),
    107                 SECURE_KEY_ASSIST, ON) != 0;
    108     }
    109 
    110     private boolean isSilenceGestureEnabled() {
    111         return Settings.Secure.getInt(mContext.getContentResolver(),
    112                 SECURE_KEY_SILENCE, ON) != 0;
    113     }
    114 
    115     @Override
    116     public boolean setChecked(boolean isChecked) {
    117         return Settings.Secure.putInt(mContext.getContentResolver(), SECURE_KEY_ASSIST,
    118                 isChecked ? ON : OFF);
    119     }
    120 
    121     @Override
    122     protected String getVideoPrefKey() {
    123         return PREF_KEY_VIDEO;
    124     }
    125 
    126     @Override
    127     public CharSequence getSummary() {
    128         boolean isEnabled = isAssistGestureEnabled() && mFeatureProvider.isSupported(mContext);
    129         if (!mAssistOnly) {
    130             isEnabled = isEnabled || isSilenceGestureEnabled();
    131         }
    132         return mContext.getText(
    133                 isEnabled ? R.string.gesture_setting_on : R.string.gesture_setting_off);
    134     }
    135 
    136     @Override
    137     public boolean isChecked() {
    138         return Settings.Secure.getInt(mContext.getContentResolver(), SECURE_KEY_ASSIST, OFF) == ON;
    139     }
    140 
    141     @Override
    142     //TODO (b/69808376): Remove result payload
    143     public ResultPayload getResultPayload() {
    144         final Intent intent = DatabaseIndexingUtils.buildSearchResultPageIntent(mContext,
    145                 AssistGestureSettings.class.getName(), mAssistGesturePrefKey,
    146                 mContext.getString(R.string.display_settings));
    147 
    148         return new InlineSwitchPayload(SECURE_KEY_ASSIST, ResultPayload.SettingsSource.SECURE,
    149                 ON /* onValue */, intent, isAvailable(), ON /* defaultValue */);
    150     }
    151 }
    152