AppInfoBase.java revision 265d3c2a0c36251bf8a9f571d7239b6dd404d942 
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.util.Log;
39
40import com.android.internal.logging.nano.MetricsProto;
41import com.android.settings.SettingsActivity;
42import com.android.settings.SettingsPreferenceFragment;
43import com.android.settings.Utils;
44import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
45import com.android.settingslib.RestrictedLockUtils;
46import com.android.settingslib.applications.ApplicationsState;
47import com.android.settingslib.applications.ApplicationsState.AppEntry;
48
49import java.util.ArrayList;
50
51import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
52
53public abstract class AppInfoBase extends SettingsPreferenceFragment
54        implements ApplicationsState.Callbacks {
55
56    public static final String ARG_PACKAGE_NAME = "package";
57    public static final String ARG_PACKAGE_UID = "uid";
58
59    protected static final String TAG = AppInfoBase.class.getSimpleName();
60    protected static final boolean localLOGV = false;
61
62    protected EnforcedAdmin mAppsControlDisallowedAdmin;
63    protected boolean mAppsControlDisallowedBySystem;
64
65    protected ApplicationsState mState;
66    protected ApplicationsState.Session mSession;
67    protected ApplicationsState.AppEntry mAppEntry;
68    protected PackageInfo mPackageInfo;
69    protected int mUserId;
70    protected String mPackageName;
71
72    protected IUsbManager mUsbManager;
73    protected DevicePolicyManager mDpm;
74    protected UserManager mUserManager;
75    protected PackageManager mPm;
76
77    // Dialog identifiers used in showDialog
78    protected static final int DLG_BASE = 0;
79
80    protected boolean mFinishing;
81    protected boolean mListeningToPackageRemove;
82
83    @Override
84    public void onCreate(Bundle savedInstanceState) {
85        super.onCreate(savedInstanceState);
86        mFinishing = false;
87
88        mState = ApplicationsState.getInstance(getActivity().getApplication());
89        mSession = mState.newSession(this);
90        Context context = getActivity();
91        mDpm = (DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE);
92        mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
93        mPm = context.getPackageManager();
94        IBinder b = ServiceManager.getService(Context.USB_SERVICE);
95        mUsbManager = IUsbManager.Stub.asInterface(b);
96
97        retrieveAppEntry();
98        startListeningToPackageRemove();
99    }
100
101    @Override
102    public void onResume() {
103        super.onResume();
104        mSession.resume();
105        mAppsControlDisallowedAdmin = RestrictedLockUtils.checkIfRestrictionEnforced(getActivity(),
106                UserManager.DISALLOW_APPS_CONTROL, mUserId);
107        mAppsControlDisallowedBySystem = RestrictedLockUtils.hasBaseUserRestriction(getActivity(),
108                UserManager.DISALLOW_APPS_CONTROL, mUserId);
109
110        if (!refreshUi()) {
111            setIntentAndFinish(true, true);
112        }
113    }
114
115    @Override
116    public void onPause() {
117        mSession.pause();
118        super.onPause();
119    }
120
121    @Override
122    public void onDestroy() {
123        stopListeningToPackageRemove();
124        mSession.release();
125        super.onDestroy();
126    }
127
128    protected String retrieveAppEntry() {
129        final Bundle args = getArguments();
130        mPackageName = (args != null) ? args.getString(ARG_PACKAGE_NAME) : null;
131        if (mPackageName == null) {
132            Intent intent = (args == null) ?
133                    getActivity().getIntent() : (Intent) args.getParcelable("intent");
134            if (intent != null) {
135                mPackageName = intent.getData().getSchemeSpecificPart();
136            }
137        }
138        mUserId = UserHandle.myUserId();
139        mAppEntry = mState.getEntry(mPackageName, mUserId);
140        if (mAppEntry != null) {
141            // Get application info again to refresh changed properties of application
142            try {
143                mPackageInfo = mPm.getPackageInfo(mAppEntry.info.packageName,
144                        PackageManager.GET_DISABLED_COMPONENTS |
145                        PackageManager.GET_UNINSTALLED_PACKAGES |
146                        PackageManager.GET_SIGNATURES |
147                        PackageManager.GET_PERMISSIONS);
148            } catch (NameNotFoundException e) {
149                Log.e(TAG, "Exception when retrieving package:" + mAppEntry.info.packageName, e);
150            }
151        } else {
152            Log.w(TAG, "Missing AppEntry; maybe reinstalling?");
153            mPackageInfo = null;
154        }
155
156        return mPackageName;
157    }
158
159    protected void setIntentAndFinish(boolean finish, boolean appChanged) {
160        if (localLOGV) Log.i(TAG, "appChanged="+appChanged);
161        Intent intent = new Intent();
162        intent.putExtra(ManageApplications.APP_CHG, appChanged);
163        SettingsActivity sa = (SettingsActivity)getActivity();
164        sa.finishPreferencePanel(this, Activity.RESULT_OK, intent);
165        mFinishing = true;
166    }
167
168    protected void showDialogInner(int id, int moveErrorCode) {
169        DialogFragment newFragment = MyAlertDialogFragment.newInstance(id, moveErrorCode);
170        newFragment.setTargetFragment(this, 0);
171        newFragment.show(getFragmentManager(), "dialog " + id);
172    }
173
174    protected abstract boolean refreshUi();
175    protected abstract AlertDialog createDialog(int id, int errorCode);
176
177    @Override
178    public void onRunningStateChanged(boolean running) {
179        // No op.
180    }
181
182    @Override
183    public void onRebuildComplete(ArrayList<AppEntry> apps) {
184        // No op.
185    }
186
187    @Override
188    public void onPackageIconChanged() {
189        // No op.
190    }
191
192    @Override
193    public void onPackageSizeChanged(String packageName) {
194        // No op.
195    }
196
197    @Override
198    public void onAllSizesComputed() {
199        // No op.
200    }
201
202    @Override
203    public void onLauncherInfoChanged() {
204        // No op.
205    }
206
207    @Override
208    public void onLoadEntriesCompleted() {
209        // No op.
210    }
211
212    @Override
213    public void onPackageListChanged() {
214        refreshUi();
215    }
216
217    public static void startAppInfoFragment(Class<?> fragment, int titleRes,
218            String pkg, int uid, Fragment source, int request) {
219        startAppInfoFragment(fragment, titleRes, pkg, uid, source.getActivity(), request);
220    }
221
222    public static void startAppInfoFragment(Class<?> fragment, int titleRes,
223            String pkg, int uid, Activity source, int request) {
224        Bundle args = new Bundle();
225        args.putString(AppInfoBase.ARG_PACKAGE_NAME, pkg);
226        args.putInt(AppInfoBase.ARG_PACKAGE_UID, uid);
227
228        Intent intent = Utils.onBuildStartFragmentIntent(source, fragment.getName(),
229                args, null, titleRes, null, false);
230        source.startActivityForResultAsUser(intent, request,
231                new UserHandle(UserHandle.getUserId(uid)));
232    }
233
234    public static class MyAlertDialogFragment extends InstrumentedDialogFragment {
235
236        private static final String ARG_ID = "id";
237
238        @Override
239        public int getMetricsCategory() {
240            return MetricsProto.MetricsEvent.DIALOG_APP_INFO_ACTION;
241        }
242
243        @Override
244        public Dialog onCreateDialog(Bundle savedInstanceState) {
245            int id = getArguments().getInt(ARG_ID);
246            int errorCode = getArguments().getInt("moveError");
247            Dialog dialog = ((AppInfoBase) getTargetFragment()).createDialog(id, errorCode);
248            if (dialog == null) {
249                throw new IllegalArgumentException("unknown id " + id);
250            }
251            return dialog;
252        }
253
254        public static MyAlertDialogFragment newInstance(int id, int errorCode) {
255            MyAlertDialogFragment dialogFragment = new MyAlertDialogFragment();
256            Bundle args = new Bundle();
257            args.putInt(ARG_ID, id);
258            args.putInt("moveError", errorCode);
259            dialogFragment.setArguments(args);
260            return dialogFragment;
261        }
262    }
263
264    protected void startListeningToPackageRemove() {
265        if (mListeningToPackageRemove) {
266            return;
267        }
268        mListeningToPackageRemove = true;
269        final IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_REMOVED);
270        filter.addDataScheme("package");
271        getContext().registerReceiver(mPackageRemovedReceiver, filter);
272    }
273
274    protected void stopListeningToPackageRemove() {
275        if (!mListeningToPackageRemove) {
276            return;
277        }
278        mListeningToPackageRemove = false;
279        getContext().unregisterReceiver(mPackageRemovedReceiver);
280    }
281
282    protected void onPackageRemoved() {
283        getActivity().finishAndRemoveTask();
284    }
285
286    protected final BroadcastReceiver mPackageRemovedReceiver = new BroadcastReceiver() {
287        @Override
288        public void onReceive(Context context, Intent intent) {
289            String packageName = intent.getData().getSchemeSpecificPart();
290            if (!mFinishing && mAppEntry.info.packageName.equals(packageName)) {
291                onPackageRemoved();
292            }
293        }
294    };
295
296}
297