1 /* 2 * Copyright (C) 2014 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 17 package com.android.inputmethod.latin; 18 19 import android.app.DownloadManager; 20 import android.content.BroadcastReceiver; 21 import android.content.ComponentName; 22 import android.content.Context; 23 import android.content.Intent; 24 import android.content.SharedPreferences; 25 import android.content.pm.ApplicationInfo; 26 import android.content.pm.PackageManager; 27 import android.database.Cursor; 28 import android.os.Process; 29 import android.preference.PreferenceManager; 30 import android.util.Log; 31 import android.view.inputmethod.InputMethodManager; 32 import android.view.inputmethod.InputMethodSubtype; 33 34 import com.android.inputmethod.dictionarypack.DictionaryPackConstants; 35 import com.android.inputmethod.dictionarypack.DownloadManagerWrapper; 36 import com.android.inputmethod.keyboard.KeyboardLayoutSet; 37 import com.android.inputmethod.latin.settings.Settings; 38 import com.android.inputmethod.latin.setup.SetupActivity; 39 import com.android.inputmethod.latin.utils.UncachedInputMethodManagerUtils; 40 41 /** 42 * This class detects the {@link Intent#ACTION_MY_PACKAGE_REPLACED} broadcast intent when this IME 43 * package has been replaced by a newer version of the same package. This class also detects 44 * {@link Intent#ACTION_BOOT_COMPLETED} and {@link Intent#ACTION_USER_INITIALIZE} broadcast intent. 45 * 46 * If this IME has already been installed in the system image and a new version of this IME has 47 * been installed, {@link Intent#ACTION_MY_PACKAGE_REPLACED} is received by this receiver and it 48 * will hide the setup wizard's icon. 49 * 50 * If this IME has already been installed in the data partition and a new version of this IME has 51 * been installed, {@link Intent#ACTION_MY_PACKAGE_REPLACED} is received by this receiver but it 52 * will not hide the setup wizard's icon, and the icon will appear on the launcher. 53 * 54 * If this IME hasn't been installed yet and has been newly installed, no 55 * {@link Intent#ACTION_MY_PACKAGE_REPLACED} will be sent and the setup wizard's icon will appear 56 * on the launcher. 57 * 58 * When the device has been booted, {@link Intent#ACTION_BOOT_COMPLETED} is received by this 59 * receiver and it checks whether the setup wizard's icon should be appeared or not on the launcher 60 * depending on which partition this IME is installed. 61 * 62 * When the system locale has been changed, {@link Intent#ACTION_LOCALE_CHANGED} is received by 63 * this receiver and the {@link KeyboardLayoutSet}'s cache is cleared. 64 */ 65 public final class SystemBroadcastReceiver extends BroadcastReceiver { 66 private static final String TAG = SystemBroadcastReceiver.class.getSimpleName(); 67 68 @Override 69 public void onReceive(final Context context, final Intent intent) { 70 final String intentAction = intent.getAction(); 71 if (Intent.ACTION_MY_PACKAGE_REPLACED.equals(intentAction)) { 72 Log.i(TAG, "Package has been replaced: " + context.getPackageName()); 73 // Need to restore additional subtypes because system always clears additional 74 // subtypes when the package is replaced. 75 RichInputMethodManager.init(context); 76 final RichInputMethodManager richImm = RichInputMethodManager.getInstance(); 77 final InputMethodSubtype[] additionalSubtypes = richImm.getAdditionalSubtypes(); 78 richImm.setAdditionalInputMethodSubtypes(additionalSubtypes); 79 toggleAppIcon(context); 80 81 // Remove all the previously scheduled downloads. This will also makes sure 82 // that any erroneously stuck downloads will get cleared. (b/21797386) 83 removeOldDownloads(context); 84 // b/21797386 85 // downloadLatestDictionaries(context); 86 } else if (Intent.ACTION_BOOT_COMPLETED.equals(intentAction)) { 87 Log.i(TAG, "Boot has been completed"); 88 toggleAppIcon(context); 89 } else if (Intent.ACTION_LOCALE_CHANGED.equals(intentAction)) { 90 Log.i(TAG, "System locale changed"); 91 KeyboardLayoutSet.onSystemLocaleChanged(); 92 } 93 94 // The process that hosts this broadcast receiver is invoked and remains alive even after 95 // 1) the package has been re-installed, 96 // 2) the device has just booted, 97 // 3) a new user has been created. 98 // There is no good reason to keep the process alive if this IME isn't a current IME. 99 final InputMethodManager imm = (InputMethodManager) 100 context.getSystemService(Context.INPUT_METHOD_SERVICE); 101 // Called to check whether this IME has been triggered by the current user or not 102 final boolean isInputMethodManagerValidForUserOfThisProcess = 103 !imm.getInputMethodList().isEmpty(); 104 final boolean isCurrentImeOfCurrentUser = isInputMethodManagerValidForUserOfThisProcess 105 && UncachedInputMethodManagerUtils.isThisImeCurrent(context, imm); 106 if (!isCurrentImeOfCurrentUser) { 107 final int myPid = Process.myPid(); 108 Log.i(TAG, "Killing my process: pid=" + myPid); 109 Process.killProcess(myPid); 110 } 111 } 112 113 private void removeOldDownloads(Context context) { 114 try { 115 Log.i(TAG, "Removing the old downloads in progress of the previous keyboard version."); 116 final DownloadManagerWrapper downloadManagerWrapper = new DownloadManagerWrapper( 117 context); 118 final DownloadManager.Query q = new DownloadManager.Query(); 119 // Query all the download statuses except the succeeded ones. 120 q.setFilterByStatus(DownloadManager.STATUS_FAILED 121 | DownloadManager.STATUS_PAUSED 122 | DownloadManager.STATUS_PENDING 123 | DownloadManager.STATUS_RUNNING); 124 final Cursor c = downloadManagerWrapper.query(q); 125 if (c != null) { 126 for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()) { 127 final long downloadId = c 128 .getLong(c.getColumnIndex(DownloadManager.COLUMN_ID)); 129 downloadManagerWrapper.remove(downloadId); 130 Log.i(TAG, "Removed the download with Id: " + downloadId); 131 } 132 c.close(); 133 } 134 } catch (Exception e) { 135 Log.e(TAG, "Exception while removing old downloads."); 136 } 137 } 138 139 private void downloadLatestDictionaries(Context context) { 140 final Intent updateIntent = new Intent( 141 DictionaryPackConstants.INIT_AND_UPDATE_NOW_INTENT_ACTION); 142 context.sendBroadcast(updateIntent); 143 } 144 145 public static void toggleAppIcon(final Context context) { 146 final int appInfoFlags = context.getApplicationInfo().flags; 147 final boolean isSystemApp = (appInfoFlags & ApplicationInfo.FLAG_SYSTEM) > 0; 148 if (Log.isLoggable(TAG, Log.INFO)) { 149 Log.i(TAG, "toggleAppIcon() : FLAG_SYSTEM = " + isSystemApp); 150 } 151 final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); 152 context.getPackageManager().setComponentEnabledSetting( 153 new ComponentName(context, SetupActivity.class), 154 Settings.readShowSetupWizardIcon(prefs, context) 155 ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED 156 : PackageManager.COMPONENT_ENABLED_STATE_DISABLED, 157 PackageManager.DONT_KILL_APP); 158 } 159 } 160
