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/*
** Copyright 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.commands.appwidget;
import android.content.Context;
import android.os.IBinder;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.UserHandle;
import android.text.TextUtils;
import com.android.internal.appwidget.IAppWidgetService;
/**
* This class is a command line utility for manipulating app widgets. A client
* can grant or revoke the permission for a given package to bind app widgets.
*/
public class AppWidget {
private static final String USAGE =
"usage: adb shell appwidget [subcommand] [options]\n"
+ "\n"
+ "usage: adb shell appwidget grantbind --package <PACKAGE> "
+ " [--user <USER_ID> | current]\n"
+ " <PACKAGE> an Android package name.\n"
+ " <USER_ID> The user id under which the package is installed.\n"
+ " Example:\n"
+ " # Grant the \"foo.bar.baz\" package to bind app widgets for the current user.\n"
+ " adb shell grantbind --package foo.bar.baz --user current\n"
+ "\n"
+ "usage: adb shell appwidget revokebind --package <PACKAGE> "
+ "[--user <USER_ID> | current]\n"
+ " <PACKAGE> an Android package name.\n"
+ " <USER_ID> The user id under which the package is installed.\n"
+ " Example:\n"
+ " # Revoke the permisison to bind app widgets from the \"foo.bar.baz\" package.\n"
+ " adb shell revokebind --package foo.bar.baz --user current\n"
+ "\n";
private static class Parser {
private static final String ARGUMENT_GRANT_BIND = "grantbind";
private static final String ARGUMENT_REVOKE_BIND = "revokebind";
private static final String ARGUMENT_PACKAGE = "--package";
private static final String ARGUMENT_USER = "--user";
private static final String ARGUMENT_PREFIX = "--";
private static final String VALUE_USER_CURRENT = "current";
private final Tokenizer mTokenizer;
public Parser(String[] args) {
mTokenizer = new Tokenizer(args);
}
public Runnable parseCommand() {
try {
String operation = mTokenizer.nextArg();
if (ARGUMENT_GRANT_BIND.equals(operation)) {
return parseSetGrantBindAppWidgetPermissionCommand(true);
} else if (ARGUMENT_REVOKE_BIND.equals(operation)) {
return parseSetGrantBindAppWidgetPermissionCommand(false);
} else {
throw new IllegalArgumentException("Unsupported operation: " + operation);
}
} catch (IllegalArgumentException iae) {
System.out.println(USAGE);
System.out.println("[ERROR] " + iae.getMessage());
return null;
}
}
private SetBindAppWidgetPermissionCommand parseSetGrantBindAppWidgetPermissionCommand(
boolean granted) {
String packageName = null;
int userId = UserHandle.USER_OWNER;
for (String argument; (argument = mTokenizer.nextArg()) != null;) {
if (ARGUMENT_PACKAGE.equals(argument)) {
packageName = argumentValueRequired(argument);
} else if (ARGUMENT_USER.equals(argument)) {
String user = argumentValueRequired(argument);
if (VALUE_USER_CURRENT.equals(user)) {
userId = UserHandle.USER_CURRENT;
} else {
userId = Integer.parseInt(user);
}
} else {
throw new IllegalArgumentException("Unsupported argument: " + argument);
}
}
if (packageName == null) {
throw new IllegalArgumentException("Package name not specified."
+ " Did you specify --package argument?");
}
return new SetBindAppWidgetPermissionCommand(packageName, granted, userId);
}
private String argumentValueRequired(String argument) {
String value = mTokenizer.nextArg();
if (TextUtils.isEmpty(value) || value.startsWith(ARGUMENT_PREFIX)) {
throw new IllegalArgumentException("No value for argument: " + argument);
}
return value;
}
}
private static class Tokenizer {
private final String[] mArgs;
private int mNextArg;
public Tokenizer(String[] args) {
mArgs = args;
}
private String nextArg() {
if (mNextArg < mArgs.length) {
return mArgs[mNextArg++];
} else {
return null;
}
}
}
private static class SetBindAppWidgetPermissionCommand implements Runnable {
final String mPackageName;
final boolean mGranted;
final int mUserId;
public SetBindAppWidgetPermissionCommand(String packageName, boolean granted,
int userId) {
mPackageName = packageName;
mGranted = granted;
mUserId = userId;
}
@Override
public void run() {
IBinder binder = ServiceManager.getService(Context.APPWIDGET_SERVICE);
IAppWidgetService appWidgetService = IAppWidgetService.Stub.asInterface(binder);
try {
appWidgetService.setBindAppWidgetPermission(mPackageName, mGranted, mUserId);
} catch (RemoteException re) {
re.printStackTrace();
}
}
}
public static void main(String[] args) {
Parser parser = new Parser(args);
Runnable command = parser.parseCommand();
if (command != null) {
command.run();
}
}
}
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