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RemoteInterface.java
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RemoteInterface.java
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/*
* Copyright (C) 2012 Steven Luo
*
* 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 jackpal.androidterm;
import java.io.File;
import java.io.IOException;
import java.util.UUID;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Intent;
import android.content.ServiceConnection;
import android.content.SharedPreferences;
import android.net.Uri;
import android.os.Bundle;
import android.os.IBinder;
import android.preference.PreferenceManager;
import android.util.Log;
import jackpal.androidterm.emulatorview.TermSession;
import jackpal.androidterm.util.SessionList;
import jackpal.androidterm.util.TermSettings;
public class RemoteInterface extends Activity {
protected static final String PRIVACT_OPEN_NEW_WINDOW = "jackpal.androidterm.private.OPEN_NEW_WINDOW";
protected static final String PRIVACT_SWITCH_WINDOW = "jackpal.androidterm.private.SWITCH_WINDOW";
protected static final String PRIVEXTRA_TARGET_WINDOW = "jackpal.androidterm.private.target_window";
protected static final String PRIVACT_ACTIVITY_ALIAS = "jackpal.androidterm.TermInternal";
private TermSettings mSettings;
private TermService mTermService;
private Intent mTSIntent;
private ServiceConnection mTSConnection = new ServiceConnection() {
public void onServiceConnected(ComponentName className, IBinder service) {
TermService.TSBinder binder = (TermService.TSBinder) service;
mTermService = binder.getService();
handleIntent();
}
public void onServiceDisconnected(ComponentName className) {
mTermService = null;
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
mSettings = new TermSettings(getResources(), prefs);
Intent TSIntent = new Intent(this, TermService.class);
mTSIntent = TSIntent;
startService(TSIntent);
if (!bindService(TSIntent, mTSConnection, BIND_AUTO_CREATE)) {
Log.e(TermDebug.LOG_TAG, "bind to service failed!");
finish();
}
}
@Override
public void finish() {
ServiceConnection conn = mTSConnection;
if (conn != null) {
unbindService(conn);
// Stop the service if no terminal sessions are running
TermService service = mTermService;
if (service != null) {
SessionList sessions = service.getSessions();
if (sessions == null || sessions.size() == 0) {
stopService(mTSIntent);
}
}
mTSConnection = null;
mTermService = null;
}
super.finish();
}
protected TermService getTermService() {
return mTermService;
}
protected void handleIntent() {
TermService service = getTermService();
if (service == null) {
finish();
return;
}
Intent myIntent = getIntent();
String action = myIntent.getAction();
if (action.equals(Intent.ACTION_SEND)
&& myIntent.hasExtra(Intent.EXTRA_STREAM)) {
/* "permission.RUN_SCRIPT" not required as this is merely opening a new window. */
Object extraStream = myIntent.getExtras().get(Intent.EXTRA_STREAM);
if (extraStream instanceof Uri) {
String path = ((Uri) extraStream).getPath();
File file = new File(path);
String dirPath = file.isDirectory() ? path : file.getParent();
openNewWindow("cd " + quoteForBash(dirPath));
}
} else {
// Intent sender may not have permissions, ignore any extras
openNewWindow(null);
}
finish();
}
/**
* Quote a string so it can be used as a parameter in bash and similar shells.
*/
public static String quoteForBash(String s) {
StringBuilder builder = new StringBuilder();
String specialChars = "\"\\$`!";
builder.append('"');
int length = s.length();
for (int i = 0; i < length; i++) {
char c = s.charAt(i);
if (specialChars.indexOf(c) >= 0) {
builder.append('\\');
}
builder.append(c);
}
builder.append('"');
return builder.toString();
}
protected String openNewWindow(String iInitialCommand) {
TermService service = getTermService();
String initialCommand = mSettings.getInitialCommand();
if (iInitialCommand != null) {
if (initialCommand != null) {
initialCommand += "\r" + iInitialCommand;
} else {
initialCommand = iInitialCommand;
}
}
try {
TermSession session = Term.createTermSession(this, mSettings, initialCommand);
session.setFinishCallback(service);
service.getSessions().add(session);
String handle = UUID.randomUUID().toString();
((GenericTermSession) session).setHandle(handle);
Intent intent = new Intent(PRIVACT_OPEN_NEW_WINDOW);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
return handle;
} catch (IOException e) {
return null;
}
}
protected String appendToWindow(String handle, String iInitialCommand) {
TermService service = getTermService();
// Find the target window
SessionList sessions = service.getSessions();
GenericTermSession target = null;
int index;
for (index = 0; index < sessions.size(); ++index) {
GenericTermSession session = (GenericTermSession) sessions.get(index);
String h = session.getHandle();
if (h != null && h.equals(handle)) {
target = session;
break;
}
}
if (target == null) {
// Target window not found, open a new one
return openNewWindow(iInitialCommand);
}
if (iInitialCommand != null) {
target.write(iInitialCommand);
target.write('\r');
}
Intent intent = new Intent(PRIVACT_SWITCH_WINDOW);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.putExtra(PRIVEXTRA_TARGET_WINDOW, index);
startActivity(intent);
return handle;
}
}