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/*
* Copyright (C) 2008 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.launcher3;
import android.content.BroadcastReceiver;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.widget.Toast;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.Iterator;
public class UninstallShortcutReceiver extends BroadcastReceiver {
private static final String ACTION_UNINSTALL_SHORTCUT =
"com.android.launcher.action.UNINSTALL_SHORTCUT";
// The set of shortcuts that are pending uninstall
private static ArrayList<PendingUninstallShortcutInfo> mUninstallQueue =
new ArrayList<PendingUninstallShortcutInfo>();
// Determines whether to defer uninstalling shortcuts immediately until
// disableAndFlushUninstallQueue() is called.
private static boolean mUseUninstallQueue = false;
private static class PendingUninstallShortcutInfo {
Intent data;
public PendingUninstallShortcutInfo(Intent rawData) {
data = rawData;
}
}
public void onReceive(Context context, Intent data) {
if (!ACTION_UNINSTALL_SHORTCUT.equals(data.getAction())) {
return;
}
PendingUninstallShortcutInfo info = new PendingUninstallShortcutInfo(data);
if (mUseUninstallQueue) {
mUninstallQueue.add(info);
} else {
processUninstallShortcut(context, info);
}
}
static void enableUninstallQueue() {
mUseUninstallQueue = true;
}
static void disableAndFlushUninstallQueue(Context context) {
mUseUninstallQueue = false;
Iterator<PendingUninstallShortcutInfo> iter = mUninstallQueue.iterator();
while (iter.hasNext()) {
processUninstallShortcut(context, iter.next());
iter.remove();
}
}
private static void processUninstallShortcut(Context context,
PendingUninstallShortcutInfo pendingInfo) {
final Intent data = pendingInfo.data;
LauncherAppState.setApplicationContext(context.getApplicationContext());
LauncherAppState app = LauncherAppState.getInstance();
synchronized (app) { // TODO: make removeShortcut internally threadsafe
removeShortcut(context, data);
}
}
private static void removeShortcut(Context context, Intent data) {
Intent intent = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_INTENT);
String name = data.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
boolean duplicate = data.getBooleanExtra(Launcher.EXTRA_SHORTCUT_DUPLICATE, true);
if (intent != null && name != null) {
final ContentResolver cr = context.getContentResolver();
Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI,
new String[] { LauncherSettings.Favorites._ID, LauncherSettings.Favorites.INTENT },
LauncherSettings.Favorites.TITLE + "=?", new String[] { name }, null);
final int intentIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.INTENT);
final int idIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites._ID);
boolean changed = false;
try {
while (c.moveToNext()) {
try {
if (intent.filterEquals(Intent.parseUri(c.getString(intentIndex), 0))) {
final long id = c.getLong(idIndex);
final Uri uri = LauncherSettings.Favorites.getContentUri(id, false);
cr.delete(uri, null, null);
changed = true;
if (!duplicate) {
break;
}
}
} catch (URISyntaxException e) {
// Ignore
}
}
} finally {
c.close();
}
if (changed) {
cr.notifyChange(LauncherSettings.Favorites.CONTENT_URI, null);
Toast.makeText(context, context.getString(R.string.shortcut_uninstalled, name),
Toast.LENGTH_SHORT).show();
}
}
}
}
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