/*
* Copyright (C) 2007 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.ime;
import com.android.internal.view.IInputMethodManager;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.util.PrintStreamPrinter;
import android.util.Printer;
import android.view.inputmethod.InputMethodInfo;
import java.util.List;
public final class Ime {
IInputMethodManager mImm;
private String[] mArgs;
private int mNextArg;
private String mCurArgData;
private static final String IMM_NOT_RUNNING_ERR =
"Error: Could not access the Input Method Manager. Is the system running?";
public static void main(String[] args) {
new Ime().run(args);
}
public void run(String[] args) {
if (args.length < 1) {
showUsage();
return;
}
mImm = IInputMethodManager.Stub.asInterface(ServiceManager.getService("input_method"));
if (mImm == null) {
System.err.println(IMM_NOT_RUNNING_ERR);
return;
}
mArgs = args;
String op = args[0];
mNextArg = 1;
if ("list".equals(op)) {
runList();
return;
}
if ("enable".equals(op)) {
runSetEnabled(true);
return;
}
if ("disable".equals(op)) {
runSetEnabled(false);
return;
}
if ("set".equals(op)) {
runSet();
return;
}
if (op != null) {
System.err.println("Error: unknown command '" + op + "'");
}
showUsage();
}
/**
* Execute the list sub-command.
*/
private void runList() {
String opt;
boolean all = false;
boolean brief = false;
while ((opt=nextOption()) != null) {
if (opt.equals("-a")) {
all = true;
} else if (opt.equals("-s")) {
brief = true;
} else {
System.err.println("Error: Unknown option: " + opt);
showUsage();
return;
}
}
List<InputMethodInfo> methods;
if (!all) {
try {
methods = mImm.getEnabledInputMethodList();
} catch (RemoteException e) {
System.err.println(e.toString());
System.err.println(IMM_NOT_RUNNING_ERR);
return;
}
} else {
try {
methods = mImm.getInputMethodList();
} catch (RemoteException e) {
System.err.println(e.toString());
System.err.println(IMM_NOT_RUNNING_ERR);
return;
}
}
if (methods != null) {
Printer pr = new PrintStreamPrinter(System.out);
for (int i=0; i<methods.size(); i++) {
InputMethodInfo imi = methods.get(i);
if (brief) {
System.out.println(imi.getId());
} else {
System.out.println(imi.getId() + ":");
imi.dump(pr, " ");
}
}
}
}
private void runSetEnabled(boolean state) {
String id = nextArg();
if (id == null) {
System.err.println("Error: no input method ID specified");
showUsage();
return;
}
try {
boolean res = mImm.setInputMethodEnabled(id, state);
if (state) {
System.out.println("Input method " + id + ": "
+ (res ? "already enabled" : "now enabled"));
} else {
System.out.println("Input method " + id + ": "
+ (res ? "now disabled" : "already disabled"));
}
} catch (IllegalArgumentException e) {
System.err.println("Error: " + e.getMessage());
return;
} catch (RemoteException e) {
System.err.println(e.toString());
System.err.println(IMM_NOT_RUNNING_ERR);
return;
}
}
private void runSet() {
String id = nextArg();
if (id == null) {
System.err.println("Error: no input method ID specified");
showUsage();
return;
}
try {
mImm.setInputMethod(null, id);
System.out.println("Input method " + id + " selected");
} catch (IllegalArgumentException e) {
System.err.println("Error: " + e.getMessage());
return;
} catch (RemoteException e) {
System.err.println(e.toString());
System.err.println(IMM_NOT_RUNNING_ERR);
return;
}
}
private String nextOption() {
if (mNextArg >= mArgs.length) {
return null;
}
String arg = mArgs[mNextArg];
if (!arg.startsWith("-")) {
return null;
}
mNextArg++;
if (arg.equals("--")) {
return null;
}
if (arg.length() > 1 && arg.charAt(1) != '-') {
if (arg.length() > 2) {
mCurArgData = arg.substring(2);
return arg.substring(0, 2);
} else {
mCurArgData = null;
return arg;
}
}
mCurArgData = null;
return arg;
}
private String nextOptionData() {
if (mCurArgData != null) {
return mCurArgData;
}
if (mNextArg >= mArgs.length) {
return null;
}
String data = mArgs[mNextArg];
mNextArg++;
return data;
}
private String nextArg() {
if (mNextArg >= mArgs.length) {
return null;
}
String arg = mArgs[mNextArg];
mNextArg++;
return arg;
}
private static void showUsage() {
System.err.println("usage: ime list [-a] [-s]");
System.err.println(" ime enable ID");
System.err.println(" ime disable ID");
System.err.println(" ime set ID");
System.err.println("");
System.err.println("The list command prints all enabled input methods. Use");
System.err.println("the -a option to see all input methods. Use");
System.err.println("the -s option to see only a single summary line of each.");
System.err.println("");
System.err.println("The enable command allows the given input method ID to be used.");
System.err.println("");
System.err.println("The disable command disallows the given input method ID from use.");
System.err.println("");
System.err.println("The set command switches to the given input method ID.");
}
}