AppInfoBase.java revision 296c46404c4647a423eb260563ac407aa538282f 
1/*
2 * Copyright (C) 2015 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
17package com.android.settings.applications;
18
19import android.app.Activity;
20import android.app.AlertDialog;
21import android.app.Dialog;
22import android.app.DialogFragment;
23import android.app.Fragment;
24import android.app.admin.DevicePolicyManager;
25import android.content.BroadcastReceiver;
26import android.content.Context;
27import android.content.Intent;
28import android.content.IntentFilter;
29import android.content.pm.PackageInfo;
30import android.content.pm.PackageManager;
31import android.content.pm.PackageManager.NameNotFoundException;
32import android.hardware.usb.IUsbManager;
33import android.os.Bundle;
34import android.os.IBinder;
35import android.os.ServiceManager;
36import android.os.UserHandle;
37import android.os.UserManager;
38import android.text.TextUtils;
39import android.util.Log;
40
41import com.android.internal.logging.nano.MetricsProto;
42import com.android.settings.SettingsActivity;
43import com.android.settings.SettingsPreferenceFragment;
44import com.android.settings.Utils;
45import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
46import com.android.settings.overlay.FeatureFactory;
47import com.android.settingslib.RestrictedLockUtils;
48import com.android.settingslib.applications.ApplicationsState;
49import com.android.settingslib.applications.ApplicationsState.AppEntry;
50
51import java.util.ArrayList;
52
53import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
54
55public abstract class AppInfoBase extends SettingsPreferenceFragment
56        implements ApplicationsState.Callbacks {
57
58    public static final String ARG_PACKAGE_NAME = "package";
59    public static final String ARG_PACKAGE_UID = "uid";
60
61    protected static final String TAG = AppInfoBase.class.getSimpleName();
62    protected static final boolean localLOGV = false;
63
64    protected EnforcedAdmin mAppsControlDisallowedAdmin;
65    protected boolean mAppsControlDisallowedBySystem;
66
67    protected ApplicationFeatureProvider mApplicationFeatureProvider;
68    protected ApplicationsState mState;
69    protected ApplicationsState.Session mSession;
70    protected ApplicationsState.AppEntry mAppEntry;
71    protected PackageInfo mPackageInfo;
72    protected int mUserId;
73    protected String mPackageName;
74
75    protected IUsbManager mUsbManager;
76    protected DevicePolicyManager mDpm;
77    protected UserManager mUserManager;
78    protected PackageManager mPm;
79
80    // Dialog identifiers used in showDialog
81    protected static final int DLG_BASE = 0;
82
83    protected boolean mFinishing;
84    protected boolean mListeningToPackageRemove;
85
86    @Override
87    public void onCreate(Bundle savedInstanceState) {
88        super.onCreate(savedInstanceState);
89        mFinishing = false;
90        final Activity activity = getActivity();
91        mApplicationFeatureProvider = FeatureFactory.getFactory(activity)
92                .getApplicationFeatureProvider(activity);
93        mState = ApplicationsState.getInstance(activity.getApplication());
94        mSession = mState.newSession(this);
95        mDpm = (DevicePolicyManager) activity.getSystemService(Context.DEVICE_POLICY_SERVICE);
96        mUserManager = (UserManager) activity.getSystemService(Context.USER_SERVICE);
97        mPm = activity.getPackageManager();
98        IBinder b = ServiceManager.getService(Context.USB_SERVICE);
99        mUsbManager = IUsbManager.Stub.asInterface(b);
100
101        retrieveAppEntry();
102        startListeningToPackageRemove();
103    }
104
105    @Override
106    public void onResume() {
107        super.onResume();
108        mSession.resume();
109        mAppsControlDisallowedAdmin = RestrictedLockUtils.checkIfRestrictionEnforced(getActivity(),
110                UserManager.DISALLOW_APPS_CONTROL, mUserId);
111        mAppsControlDisallowedBySystem = RestrictedLockUtils.hasBaseUserRestriction(getActivity(),
112                UserManager.DISALLOW_APPS_CONTROL, mUserId);
113
114        if (!refreshUi()) {
115            setIntentAndFinish(true, true);
116        }
117    }
118
119    @Override
120    public void onPause() {
121        mSession.pause();
122        super.onPause();
123    }
124
125    @Override
126    public void onDestroy() {
127        stopListeningToPackageRemove();
128        mSession.release();
129        super.onDestroy();
130    }
131
132    protected String retrieveAppEntry() {
133        final Bundle args = getArguments();
134        mPackageName = (args != null) ? args.getString(ARG_PACKAGE_NAME) : null;
135        if (mPackageName == null) {
136            Intent intent = (args == null) ?
137                    getActivity().getIntent() : (Intent) args.getParcelable("intent");
138            if (intent != null) {
139                mPackageName = intent.getData().getSchemeSpecificPart();
140            }
141        }
142        mUserId = UserHandle.myUserId();
143        mAppEntry = mState.getEntry(mPackageName, mUserId);
144        if (mAppEntry != null) {
145            // Get application info again to refresh changed properties of application
146            try {
147                mPackageInfo = mPm.getPackageInfo(mAppEntry.info.packageName,
148                        PackageManager.MATCH_DISABLED_COMPONENTS |
149                        PackageManager.MATCH_ANY_USER |
150                        PackageManager.GET_SIGNATURES |
151                        PackageManager.GET_PERMISSIONS);
152            } catch (NameNotFoundException e) {
153                Log.e(TAG, "Exception when retrieving package:" + mAppEntry.info.packageName, e);
154            }
155        } else {
156            Log.w(TAG, "Missing AppEntry; maybe reinstalling?");
157            mPackageInfo = null;
158        }
159
160        return mPackageName;
161    }
162
163    protected void setIntentAndFinish(boolean finish, boolean appChanged) {
164        if (localLOGV) Log.i(TAG, "appChanged="+appChanged);
165        Intent intent = new Intent();
166        intent.putExtra(ManageApplications.APP_CHG, appChanged);
167        SettingsActivity sa = (SettingsActivity)getActivity();
168        sa.finishPreferencePanel(this, Activity.RESULT_OK, intent);
169        mFinishing = true;
170    }
171
172    protected void showDialogInner(int id, int moveErrorCode) {
173        DialogFragment newFragment = MyAlertDialogFragment.newInstance(id, moveErrorCode);
174        newFragment.setTargetFragment(this, 0);
175        newFragment.show(getFragmentManager(), "dialog " + id);
176    }
177
178    protected abstract boolean refreshUi();
179    protected abstract AlertDialog createDialog(int id, int errorCode);
180
181    @Override
182    public void onRunningStateChanged(boolean running) {
183        // No op.
184    }
185
186    @Override
187    public void onRebuildComplete(ArrayList<AppEntry> apps) {
188        // No op.
189    }
190
191    @Override
192    public void onPackageIconChanged() {
193        // No op.
194    }
195
196    @Override
197    public void onPackageSizeChanged(String packageName) {
198        // No op.
199    }
200
201    @Override
202    public void onAllSizesComputed() {
203        // No op.
204    }
205
206    @Override
207    public void onLauncherInfoChanged() {
208        // No op.
209    }
210
211    @Override
212    public void onLoadEntriesCompleted() {
213        // No op.
214    }
215
216    @Override
217    public void onPackageListChanged() {
218        if (!refreshUi()) {
219            setIntentAndFinish(true, true);
220        }
221    }
222
223    public static void startAppInfoFragment(Class<?> fragment, int titleRes,
224            String pkg, int uid, Fragment source, int request, int sourceMetricsCategory) {
225        startAppInfoFragment(fragment, titleRes, pkg, uid, source.getActivity(), request,
226                sourceMetricsCategory);
227    }
228
229    public static void startAppInfoFragment(Class<?> fragment, int titleRes,
230            String pkg, int uid, Activity source, int request, int sourceMetricsCategory) {
231        Bundle args = new Bundle();
232        args.putString(AppInfoBase.ARG_PACKAGE_NAME, pkg);
233        args.putInt(AppInfoBase.ARG_PACKAGE_UID, uid);
234
235        Intent intent = Utils.onBuildStartFragmentIntent(source, fragment.getName(),
236                args, null, titleRes, null, false, sourceMetricsCategory);
237        source.startActivityForResultAsUser(intent, request,
238                new UserHandle(UserHandle.getUserId(uid)));
239    }
240
241    public static class MyAlertDialogFragment extends InstrumentedDialogFragment {
242
243        private static final String ARG_ID = "id";
244
245        @Override
246        public int getMetricsCategory() {
247            return MetricsProto.MetricsEvent.DIALOG_APP_INFO_ACTION;
248        }
249
250        @Override
251        public Dialog onCreateDialog(Bundle savedInstanceState) {
252            int id = getArguments().getInt(ARG_ID);
253            int errorCode = getArguments().getInt("moveError");
254            Dialog dialog = ((AppInfoBase) getTargetFragment()).createDialog(id, errorCode);
255            if (dialog == null) {
256                throw new IllegalArgumentException("unknown id " + id);
257            }
258            return dialog;
259        }
260
261        public static MyAlertDialogFragment newInstance(int id, int errorCode) {
262            MyAlertDialogFragment dialogFragment = new MyAlertDialogFragment();
263            Bundle args = new Bundle();
264            args.putInt(ARG_ID, id);
265            args.putInt("moveError", errorCode);
266            dialogFragment.setArguments(args);
267            return dialogFragment;
268        }
269    }
270
271    protected void startListeningToPackageRemove() {
272        if (mListeningToPackageRemove) {
273            return;
274        }
275        mListeningToPackageRemove = true;
276        final IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_REMOVED);
277        filter.addDataScheme("package");
278        getContext().registerReceiver(mPackageRemovedReceiver, filter);
279    }
280
281    protected void stopListeningToPackageRemove() {
282        if (!mListeningToPackageRemove) {
283            return;
284        }
285        mListeningToPackageRemove = false;
286        getContext().unregisterReceiver(mPackageRemovedReceiver);
287    }
288
289    protected void onPackageRemoved() {
290        getActivity().finishAndRemoveTask();
291    }
292
293    protected final BroadcastReceiver mPackageRemovedReceiver = new BroadcastReceiver() {
294        @Override
295        public void onReceive(Context context, Intent intent) {
296            String packageName = intent.getData().getSchemeSpecificPart();
297            if (!mFinishing && (mAppEntry == null || mAppEntry.info == null
298                    || TextUtils.equals(mAppEntry.info.packageName, packageName))) {
299                onPackageRemoved();
300            }
301        }
302    };
303
304}
305