Newer
Older
/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.inputmethod.latin;
import android.app.DownloadManager;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.os.Process;
import android.preference.PreferenceManager;
import android.util.Log;
import android.view.inputmethod.InputMethodManager;
import android.view.inputmethod.InputMethodSubtype;
import com.android.inputmethod.dictionarypack.DictionaryPackConstants;
import com.android.inputmethod.dictionarypack.DownloadManagerWrapper;
import com.android.inputmethod.keyboard.KeyboardLayoutSet;
import com.android.inputmethod.latin.settings.Settings;
import com.android.inputmethod.latin.setup.SetupActivity;
import com.android.inputmethod.latin.utils.UncachedInputMethodManagerUtils;
/**
* This class detects the {@link Intent#ACTION_MY_PACKAGE_REPLACED} broadcast intent when this IME
* package has been replaced by a newer version of the same package. This class also detects
* {@link Intent#ACTION_BOOT_COMPLETED} and {@link Intent#ACTION_USER_INITIALIZE} broadcast intent.
*
* If this IME has already been installed in the system image and a new version of this IME has
* been installed, {@link Intent#ACTION_MY_PACKAGE_REPLACED} is received by this receiver and it
* will hide the setup wizard's icon.
*
* If this IME has already been installed in the data partition and a new version of this IME has
* been installed, {@link Intent#ACTION_MY_PACKAGE_REPLACED} is received by this receiver but it
* will not hide the setup wizard's icon, and the icon will appear on the launcher.
*
* If this IME hasn't been installed yet and has been newly installed, no
* {@link Intent#ACTION_MY_PACKAGE_REPLACED} will be sent and the setup wizard's icon will appear
* on the launcher.
*
* When the device has been booted, {@link Intent#ACTION_BOOT_COMPLETED} is received by this
* receiver and it checks whether the setup wizard's icon should be appeared or not on the launcher
* depending on which partition this IME is installed.
*
* When the system locale has been changed, {@link Intent#ACTION_LOCALE_CHANGED} is received by
* this receiver and the {@link KeyboardLayoutSet}'s cache is cleared.
*/
public final class SystemBroadcastReceiver extends BroadcastReceiver {
private static final String TAG = SystemBroadcastReceiver.class.getSimpleName();
@Override
public void onReceive(final Context context, final Intent intent) {
final String intentAction = intent.getAction();
if (Intent.ACTION_MY_PACKAGE_REPLACED.equals(intentAction)) {
Log.i(TAG, "Package has been replaced: " + context.getPackageName());
// Need to restore additional subtypes because system always clears additional
// subtypes when the package is replaced.
RichInputMethodManager.init(context);
final RichInputMethodManager richImm = RichInputMethodManager.getInstance();
final InputMethodSubtype[] additionalSubtypes = richImm.getAdditionalSubtypes();
richImm.setAdditionalInputMethodSubtypes(additionalSubtypes);
// Remove all the previously scheduled downloads. This will also makes sure
// that any erroneously stuck downloads will get cleared. (b/21797386)
removeOldDownloads(context);
downloadLatestDictionaries(context);
} else if (Intent.ACTION_BOOT_COMPLETED.equals(intentAction)) {
Log.i(TAG, "Boot has been completed");
} else if (Intent.ACTION_LOCALE_CHANGED.equals(intentAction)) {
Log.i(TAG, "System locale changed");
KeyboardLayoutSet.onSystemLocaleChanged();
}
// The process that hosts this broadcast receiver is invoked and remains alive even after
// 1) the package has been re-installed,
// 2) the device has just booted,
// 3) a new user has been created.
// There is no good reason to keep the process alive if this IME isn't a current IME.
final InputMethodManager imm = (InputMethodManager)
context.getSystemService(Context.INPUT_METHOD_SERVICE);
// Called to check whether this IME has been triggered by the current user or not
final boolean isInputMethodManagerValidForUserOfThisProcess =
!imm.getInputMethodList().isEmpty();
final boolean isCurrentImeOfCurrentUser = isInputMethodManagerValidForUserOfThisProcess
&& UncachedInputMethodManagerUtils.isThisImeCurrent(context, imm);
if (!isCurrentImeOfCurrentUser) {
final int myPid = Process.myPid();
Log.i(TAG, "Killing my process: pid=" + myPid);
Process.killProcess(myPid);
}
}
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
private void removeOldDownloads(Context context) {
try {
Log.i(TAG, "Removing the old downloads in progress of the previous keyboard version.");
final DownloadManagerWrapper downloadManagerWrapper = new DownloadManagerWrapper(
context);
final DownloadManager.Query q = new DownloadManager.Query();
// Query all the download statuses except the succeeded ones.
q.setFilterByStatus(DownloadManager.STATUS_FAILED
| DownloadManager.STATUS_PAUSED
| DownloadManager.STATUS_PENDING
| DownloadManager.STATUS_RUNNING);
final Cursor c = downloadManagerWrapper.query(q);
if (c != null) {
if (c.moveToFirst()) {
while (c.moveToNext()) {
final long downloadId = c
.getLong(c.getColumnIndex(DownloadManager.COLUMN_ID));
downloadManagerWrapper.remove(downloadId);
Log.i(TAG, "Removed the download with Id: " + downloadId);
}
}
c.close();
}
} catch (Exception e) {
Log.e(TAG, "Exception while removing old downloads.");
}
}
private void downloadLatestDictionaries(Context context) {
final Intent updateIntent = new Intent(
DictionaryPackConstants.INIT_AND_UPDATE_NOW_INTENT_ACTION);
context.sendBroadcast(updateIntent);
}
public static void toggleAppIcon(final Context context) {
final int appInfoFlags = context.getApplicationInfo().flags;
final boolean isSystemApp = (appInfoFlags & ApplicationInfo.FLAG_SYSTEM) > 0;
if (Log.isLoggable(TAG, Log.INFO)) {
Log.i(TAG, "toggleAppIcon() : FLAG_SYSTEM = " + isSystemApp);
}
final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
context.getPackageManager().setComponentEnabledSetting(
new ComponentName(context, SetupActivity.class),
Settings.readShowSetupWizardIcon(prefs, context)
? PackageManager.COMPONENT_ENABLED_STATE_ENABLED
: PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
PackageManager.DONT_KILL_APP);
}