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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"); 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 package com.android.settings.location;
     15 
     16 import android.content.Context;
     17 import android.os.Bundle;
     18 import android.os.UserHandle;
     19 import android.support.annotation.VisibleForTesting;
     20 import android.support.v7.preference.Preference;
     21 import android.support.v7.preference.PreferenceCategory;
     22 import android.support.v7.preference.PreferenceScreen;
     23 import com.android.settings.R;
     24 import com.android.settings.applications.appinfo.AppInfoDashboardFragment;
     25 import com.android.settings.core.SubSettingLauncher;
     26 import com.android.settings.dashboard.DashboardFragment;
     27 import com.android.settings.widget.AppPreference;
     28 import com.android.settingslib.core.lifecycle.Lifecycle;
     29 import com.android.settingslib.location.RecentLocationApps;
     30 import java.util.List;
     31 
     32 public class RecentLocationRequestPreferenceController extends LocationBasePreferenceController {
     33 
     34     /** Key for preference category "Recent location requests" */
     35     private static final String KEY_RECENT_LOCATION_REQUESTS = "recent_location_requests";
     36     @VisibleForTesting
     37     static final String KEY_SEE_ALL_BUTTON = "recent_location_requests_see_all_button";
     38     private final LocationSettings mFragment;
     39     private final RecentLocationApps mRecentLocationApps;
     40     private PreferenceCategory mCategoryRecentLocationRequests;
     41     private Preference mSeeAllButton;
     42 
     43     /** Used in this class and {@link RecentLocationRequestSeeAllPreferenceController}*/
     44     static class PackageEntryClickedListener implements Preference.OnPreferenceClickListener {
     45         private final DashboardFragment mFragment;
     46         private final String mPackage;
     47         private final UserHandle mUserHandle;
     48 
     49         public PackageEntryClickedListener(DashboardFragment fragment, String packageName,
     50                 UserHandle userHandle) {
     51             mFragment = fragment;
     52             mPackage = packageName;
     53             mUserHandle = userHandle;
     54         }
     55 
     56         @Override
     57         public boolean onPreferenceClick(Preference preference) {
     58             // start new fragment to display extended information
     59             final Bundle args = new Bundle();
     60             args.putString(AppInfoDashboardFragment.ARG_PACKAGE_NAME, mPackage);
     61 
     62             new SubSettingLauncher(mFragment.getContext())
     63                     .setDestination(AppInfoDashboardFragment.class.getName())
     64                     .setArguments(args)
     65                     .setTitle(R.string.application_info_label)
     66                     .setUserHandle(mUserHandle)
     67                     .setSourceMetricsCategory(mFragment.getMetricsCategory())
     68                     .launch();
     69             return true;
     70         }
     71     }
     72 
     73     public RecentLocationRequestPreferenceController(Context context, LocationSettings fragment,
     74             Lifecycle lifecycle) {
     75         this(context, fragment, lifecycle, new RecentLocationApps(context));
     76     }
     77 
     78     @VisibleForTesting
     79     RecentLocationRequestPreferenceController(Context context, LocationSettings fragment,
     80             Lifecycle lifecycle, RecentLocationApps recentApps) {
     81         super(context, lifecycle);
     82         mFragment = fragment;
     83         mRecentLocationApps = recentApps;
     84     }
     85 
     86     @Override
     87     public String getPreferenceKey() {
     88         return KEY_RECENT_LOCATION_REQUESTS;
     89     }
     90 
     91     @Override
     92     public void displayPreference(PreferenceScreen screen) {
     93         super.displayPreference(screen);
     94         mCategoryRecentLocationRequests =
     95                 (PreferenceCategory) screen.findPreference(KEY_RECENT_LOCATION_REQUESTS);
     96         mSeeAllButton = screen.findPreference(KEY_SEE_ALL_BUTTON);
     97 
     98     }
     99 
    100     @Override
    101     public void updateState(Preference preference) {
    102         mCategoryRecentLocationRequests.removeAll();
    103         mSeeAllButton.setVisible(false);
    104 
    105         final Context prefContext = preference.getContext();
    106         final List<RecentLocationApps.Request> recentLocationRequests =
    107                 mRecentLocationApps.getAppListSorted();
    108 
    109         if (recentLocationRequests.size() > 3) {
    110             // Display the top 3 preferences to container in original order.
    111             for (int i = 0; i < 3; i ++) {
    112                 mCategoryRecentLocationRequests.addPreference(
    113                         createAppPreference(prefContext, recentLocationRequests.get(i)));
    114             }
    115             // Display a button to list all requests
    116             mSeeAllButton.setVisible(true);
    117         } else if (recentLocationRequests.size() > 0) {
    118             // Add preferences to container in original order (already sorted by recency).
    119             for (RecentLocationApps.Request request : recentLocationRequests) {
    120                 mCategoryRecentLocationRequests.addPreference(
    121                         createAppPreference(prefContext, request));
    122             }
    123         } else {
    124             // If there's no item to display, add a "No recent apps" item.
    125             final Preference banner = createAppPreference(prefContext);
    126             banner.setTitle(R.string.location_no_recent_apps);
    127             banner.setSelectable(false);
    128             mCategoryRecentLocationRequests.addPreference(banner);
    129         }
    130     }
    131 
    132     @Override
    133     public void onLocationModeChanged(int mode, boolean restricted) {
    134         mCategoryRecentLocationRequests.setEnabled(mLocationEnabler.isEnabled(mode));
    135     }
    136 
    137     @VisibleForTesting
    138     AppPreference createAppPreference(Context prefContext) {
    139         return new AppPreference(prefContext);
    140     }
    141 
    142     @VisibleForTesting
    143     AppPreference createAppPreference(Context prefContext, RecentLocationApps.Request request) {
    144         final AppPreference pref = createAppPreference(prefContext);
    145         pref.setSummary(request.contentDescription);
    146         pref.setIcon(request.icon);
    147         pref.setTitle(request.label);
    148         pref.setOnPreferenceClickListener(new PackageEntryClickedListener(
    149                 mFragment, request.packageName, request.userHandle));
    150         return pref;
    151     }
    152 }
    153