1 /* 2 * Copyright (C) 2008 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.launcher3; 18 19 import android.content.BroadcastReceiver; 20 import android.content.ContentResolver; 21 import android.content.Context; 22 import android.content.Intent; 23 import android.database.Cursor; 24 import android.net.Uri; 25 import android.widget.Toast; 26 27 import java.net.URISyntaxException; 28 import java.util.ArrayList; 29 import java.util.Iterator; 30 31 public class UninstallShortcutReceiver extends BroadcastReceiver { 32 private static final String ACTION_UNINSTALL_SHORTCUT = 33 "com.android.launcher.action.UNINSTALL_SHORTCUT"; 34 35 // The set of shortcuts that are pending uninstall 36 private static ArrayList<PendingUninstallShortcutInfo> mUninstallQueue = 37 new ArrayList<PendingUninstallShortcutInfo>(); 38 39 // Determines whether to defer uninstalling shortcuts immediately until 40 // disableAndFlushUninstallQueue() is called. 41 private static boolean mUseUninstallQueue = false; 42 43 private static class PendingUninstallShortcutInfo { 44 Intent data; 45 PendingUninstallShortcutInfo(Intent rawData)46 public PendingUninstallShortcutInfo(Intent rawData) { 47 data = rawData; 48 } 49 } 50 onReceive(Context context, Intent data)51 public void onReceive(Context context, Intent data) { 52 if (!ACTION_UNINSTALL_SHORTCUT.equals(data.getAction())) { 53 return; 54 } 55 56 PendingUninstallShortcutInfo info = new PendingUninstallShortcutInfo(data); 57 if (mUseUninstallQueue) { 58 mUninstallQueue.add(info); 59 } else { 60 processUninstallShortcut(context, info); 61 } 62 } 63 enableUninstallQueue()64 static void enableUninstallQueue() { 65 mUseUninstallQueue = true; 66 } 67 disableAndFlushUninstallQueue(Context context)68 static void disableAndFlushUninstallQueue(Context context) { 69 mUseUninstallQueue = false; 70 Iterator<PendingUninstallShortcutInfo> iter = mUninstallQueue.iterator(); 71 while (iter.hasNext()) { 72 processUninstallShortcut(context, iter.next()); 73 iter.remove(); 74 } 75 } 76 processUninstallShortcut(Context context, PendingUninstallShortcutInfo pendingInfo)77 private static void processUninstallShortcut(Context context, 78 PendingUninstallShortcutInfo pendingInfo) { 79 final Intent data = pendingInfo.data; 80 81 LauncherAppState.setApplicationContext(context.getApplicationContext()); 82 LauncherAppState app = LauncherAppState.getInstance(); 83 synchronized (app) { // TODO: make removeShortcut internally threadsafe 84 removeShortcut(context, data); 85 } 86 } 87 removeShortcut(Context context, Intent data)88 private static void removeShortcut(Context context, Intent data) { 89 Intent intent = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_INTENT); 90 String name = data.getStringExtra(Intent.EXTRA_SHORTCUT_NAME); 91 boolean duplicate = data.getBooleanExtra(Launcher.EXTRA_SHORTCUT_DUPLICATE, true); 92 93 if (intent != null && name != null) { 94 final ContentResolver cr = context.getContentResolver(); 95 Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI, 96 new String[] { LauncherSettings.Favorites._ID, LauncherSettings.Favorites.INTENT }, 97 LauncherSettings.Favorites.TITLE + "=?", new String[] { name }, null); 98 99 final int intentIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.INTENT); 100 final int idIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites._ID); 101 102 boolean changed = false; 103 104 try { 105 while (c.moveToNext()) { 106 try { 107 if (intent.filterEquals(Intent.parseUri(c.getString(intentIndex), 0))) { 108 final long id = c.getLong(idIndex); 109 final Uri uri = LauncherSettings.Favorites.getContentUri(id, false); 110 cr.delete(uri, null, null); 111 changed = true; 112 if (!duplicate) { 113 break; 114 } 115 } 116 } catch (URISyntaxException e) { 117 // Ignore 118 } 119 } 120 } finally { 121 c.close(); 122 } 123 124 if (changed) { 125 cr.notifyChange(LauncherSettings.Favorites.CONTENT_URI, null); 126 Toast.makeText(context, context.getString(R.string.shortcut_uninstalled, name), 127 Toast.LENGTH_SHORT).show(); 128 } 129 } 130 } 131 } 132