1 /*
2  * Copyright (C) 2016 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 package com.android.permissioncontroller.permission.ui.handheld;
17 
18 import static androidx.lifecycle.ViewModelProvider.AndroidViewModelFactory;
19 
20 import static com.android.permissioncontroller.Constants.EXTRA_SESSION_ID;
21 import static com.android.permissioncontroller.Constants.INVALID_SESSION_ID;
22 import static com.android.permissioncontroller.permission.ui.handheld.UtilsKt.pressBack;
23 
24 import android.app.Application;
25 import android.os.Bundle;
26 import android.util.Log;
27 import android.view.MenuItem;
28 
29 import androidx.lifecycle.ViewModelProvider;
30 import androidx.preference.Preference;
31 import androidx.preference.PreferenceScreen;
32 
33 import com.android.modules.utils.build.SdkLevel;
34 import com.android.permissioncontroller.R;
35 import com.android.permissioncontroller.permission.ui.UnusedAppsFragment;
36 import com.android.permissioncontroller.permission.ui.model.ManageStandardPermissionsViewModel;
37 import com.android.permissioncontroller.permission.utils.StringUtils;
38 import com.android.permissioncontroller.permission.utils.Utils;
39 import com.android.settingslib.widget.FooterPreference;
40 
41 /**
42  * Fragment that allows the user to manage standard permissions.
43  */
44 public final class ManageStandardPermissionsFragment extends ManagePermissionsFragment {
45     private static final String EXTRA_PREFS_KEY = "extra_prefs_key";
46     private static final String AUTO_REVOKE_KEY = "auto_revoke_key";
47     private static final String LOG_TAG = ManageStandardPermissionsFragment.class.getSimpleName();
48     private ManageStandardPermissionsViewModel mViewModel;
49 
50     /**
51      * Create a bundle with the arguments needed by this fragment
52      *
53      * @param sessionId The current session ID
54      * @return A bundle with all of the args placed
55      */
createArgs(long sessionId)56     public static Bundle createArgs(long sessionId) {
57         Bundle arguments = new Bundle();
58         arguments.putLong(EXTRA_SESSION_ID, sessionId);
59         return arguments;
60     }
61 
62     @Override
onCreate(Bundle icicle)63     public void onCreate(Bundle icicle) {
64         super.onCreate(icicle);
65 
66         final Application application = getActivity().getApplication();
67         mViewModel = new ViewModelProvider(this, AndroidViewModelFactory.getInstance(application))
68                 .get(ManageStandardPermissionsViewModel.class);
69         mPermissionGroups = mViewModel.getUiDataLiveData().getValue();
70 
71         mViewModel.getUiDataLiveData().observe(this, permissionGroups -> {
72             // Once we have loaded data for the first time, further loads should be staggered,
73             // for performance reasons.
74             mViewModel.getUiDataLiveData().setLoadStaggered(true);
75             if (permissionGroups != null) {
76                 mPermissionGroups = permissionGroups;
77                 updatePermissionsUi();
78             } else {
79                 Log.e(LOG_TAG, "ViewModel returned null data, exiting");
80                 getActivity().finishAfterTransition();
81             }
82 
83             // If we've loaded all LiveDatas, no need to prioritize loading any particular one
84             if (!mViewModel.getUiDataLiveData().isStale()) {
85                 mViewModel.getUiDataLiveData().setFirstLoadGroup(null);
86             }
87         });
88 
89         mViewModel.getNumCustomPermGroups().observe(this, permNames -> updatePermissionsUi());
90         mViewModel.getNumAutoRevoked().observe(this, show -> updatePermissionsUi());
91     }
92 
93     @Override
onStart()94     public void onStart() {
95         super.onStart();
96 
97         getActivity().setTitle(com.android.permissioncontroller.R.string.app_permission_manager);
98     }
99 
100     @Override
onOptionsItemSelected(MenuItem item)101     public boolean onOptionsItemSelected(MenuItem item) {
102         switch (item.getItemId()) {
103             case android.R.id.home:
104                 pressBack(this);
105                 return true;
106         }
107         return super.onOptionsItemSelected(item);
108     }
109 
110     @Override
updatePermissionsUi()111     protected PreferenceScreen updatePermissionsUi() {
112         PreferenceScreen screen = super.updatePermissionsUi();
113         if (screen == null) {
114             return null;
115         }
116 
117         // Check if we need an additional permissions preference
118         int numExtraPermissions = 0;
119         if (mViewModel.getNumCustomPermGroups().getValue() != null) {
120             numExtraPermissions = mViewModel.getNumCustomPermGroups().getValue();
121         }
122 
123         Preference additionalPermissionsPreference = screen.findPreference(EXTRA_PREFS_KEY);
124         if (numExtraPermissions == 0) {
125             if (additionalPermissionsPreference != null) {
126                 screen.removePreference(additionalPermissionsPreference);
127             }
128         } else {
129             if (additionalPermissionsPreference == null) {
130                 additionalPermissionsPreference = new FixedSizeIconPreference(
131                         getPreferenceManager().getContext());
132                 additionalPermissionsPreference.setKey(EXTRA_PREFS_KEY);
133                 additionalPermissionsPreference.setIcon(Utils.applyTint(getActivity(),
134                         R.drawable.ic_more_items,
135                         android.R.attr.colorControlNormal));
136                 additionalPermissionsPreference.setTitle(R.string.additional_permissions);
137                 additionalPermissionsPreference.setOnPreferenceClickListener(preference -> {
138                     mViewModel.showCustomPermissions(this,
139                             ManageCustomPermissionsFragment.createArgs(
140                                     getArguments().getLong(EXTRA_SESSION_ID)));
141                     return true;
142                 });
143 
144                 screen.addPreference(additionalPermissionsPreference);
145             }
146 
147             additionalPermissionsPreference.setSummary(StringUtils.getIcuPluralsString(getContext(),
148                     R.string.additional_permissions_more, numExtraPermissions));
149         }
150 
151         Integer numAutoRevoked = mViewModel.getNumAutoRevoked().getValue();
152 
153         Preference autoRevokePreference = screen.findPreference(AUTO_REVOKE_KEY);
154         if (numAutoRevoked != null && numAutoRevoked != 0) {
155             if (autoRevokePreference == null) {
156                 if (SdkLevel.isAtLeastS()) {
157                     autoRevokePreference = createAutoRevokeFooterPreferenceForSPlus();
158                 } else {
159                     autoRevokePreference = createAutoRevokeFooterPreferenceForR();
160                 }
161                 autoRevokePreference.setKey(AUTO_REVOKE_KEY);
162                 screen.addPreference(autoRevokePreference);
163             }
164         } else if (numAutoRevoked != null && autoRevokePreference != null) {
165             screen.removePreference(autoRevokePreference);
166         }
167 
168         return screen;
169     }
170 
createAutoRevokeFooterPreferenceForSPlus()171     private FooterPreference createAutoRevokeFooterPreferenceForSPlus() {
172         FooterPreference autoRevokePreference = new FooterPreference(getContext());
173         autoRevokePreference.setSummary(R.string.auto_revoked_apps_page_summary);
174         autoRevokePreference.setLearnMoreAction(view -> {
175             mViewModel.showAutoRevoke(this, UnusedAppsFragment.createArgs(
176                             getArguments().getLong(EXTRA_SESSION_ID, INVALID_SESSION_ID)));
177             });
178         return autoRevokePreference;
179     }
180 
createAutoRevokeFooterPreferenceForR()181     private Preference createAutoRevokeFooterPreferenceForR() {
182         Preference autoRevokePreference = new FixedSizeIconPreference(
183                 getPreferenceManager().getContext(), true, true);
184         autoRevokePreference.setOrder(-1);
185         autoRevokePreference.setSingleLineTitle(false);
186         autoRevokePreference.setIcon(R.drawable.ic_info_outline_accent);
187         autoRevokePreference.setTitle(R.string.auto_revoke_permission_notification_title);
188         autoRevokePreference.setSummary(R.string.auto_revoke_setting_subtitle);
189         autoRevokePreference.setOnPreferenceClickListener(preference -> {
190             mViewModel.showAutoRevoke(this, UnusedAppsFragment.createArgs(
191                     getArguments().getLong(EXTRA_SESSION_ID, INVALID_SESSION_ID)));
192             return true;
193         });
194         return autoRevokePreference;
195     }
196 
197     @Override
showPermissionApps(String permissionGroupName)198     public void showPermissionApps(String permissionGroupName) {
199         // If we return to this page within a reasonable time, prioritize loading data from the
200         // permission group whose page we are going to, as that is group most likely to have changed
201         mViewModel.getUiDataLiveData().setFirstLoadGroup(permissionGroupName);
202         mViewModel.showPermissionApps(this, PermissionAppsFragment.createArgs(
203                 permissionGroupName, getArguments().getLong(EXTRA_SESSION_ID)));
204     }
205 }
206