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/*
* Copyright (C) 2011 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.systemui.usb;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.PendingIntent;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.hardware.usb.IUsbManager;
import android.hardware.usb.UsbDevice;
import android.hardware.usb.UsbAccessory;
import android.hardware.usb.UsbManager;
import android.os.Bundle;
import android.os.IBinder;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.UserHandle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.TextView;
import com.android.internal.app.AlertActivity;
import com.android.internal.app.AlertController;
import com.android.systemui.R;
public class UsbPermissionActivity extends AlertActivity
implements DialogInterface.OnClickListener, CheckBox.OnCheckedChangeListener {
private static final String TAG = "UsbPermissionActivity";
private CheckBox mAlwaysUse;
private TextView mClearDefaultHint;
private UsbDevice mDevice;
private UsbAccessory mAccessory;
private PendingIntent mPendingIntent;
private String mPackageName;
private int mUid;
private boolean mPermissionGranted;
private UsbDisconnectedReceiver mDisconnectedReceiver;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
Intent intent = getIntent();
mDevice = (UsbDevice)intent.getParcelableExtra(UsbManager.EXTRA_DEVICE);
mAccessory = (UsbAccessory)intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY);
mPendingIntent = (PendingIntent)intent.getParcelableExtra(Intent.EXTRA_INTENT);
mUid = intent.getIntExtra(Intent.EXTRA_UID, -1);
mPackageName = intent.getStringExtra("package");
PackageManager packageManager = getPackageManager();
ApplicationInfo aInfo;
try {
aInfo = packageManager.getApplicationInfo(mPackageName, 0);
} catch (PackageManager.NameNotFoundException e) {
Log.e(TAG, "unable to look up package name", e);
finish();
return;
}
String appName = aInfo.loadLabel(packageManager).toString();
final AlertController.AlertParams ap = mAlertParams;
ap.mIcon = aInfo.loadIcon(packageManager);
ap.mTitle = appName;
if (mDevice == null) {
ap.mMessage = getString(R.string.usb_accessory_permission_prompt, appName);
mDisconnectedReceiver = new UsbDisconnectedReceiver(this, mAccessory);
} else {
ap.mMessage = getString(R.string.usb_device_permission_prompt, appName);
mDisconnectedReceiver = new UsbDisconnectedReceiver(this, mDevice);
}
ap.mPositiveButtonText = getString(android.R.string.ok);
ap.mNegativeButtonText = getString(android.R.string.cancel);
ap.mPositiveButtonListener = this;
ap.mNegativeButtonListener = this;
// add "always use" checkbox
LayoutInflater inflater = (LayoutInflater)getSystemService(
Context.LAYOUT_INFLATER_SERVICE);
ap.mView = inflater.inflate(com.android.internal.R.layout.always_use_checkbox, null);
mAlwaysUse = (CheckBox)ap.mView.findViewById(com.android.internal.R.id.alwaysUse);
if (mDevice == null) {
mAlwaysUse.setText(R.string.always_use_accessory);
} else {
mAlwaysUse.setText(R.string.always_use_device);
}
mAlwaysUse.setOnCheckedChangeListener(this);
mClearDefaultHint = (TextView)ap.mView.findViewById(
com.android.internal.R.id.clearDefaultHint);
mClearDefaultHint.setVisibility(View.GONE);
setupAlert();
}
@Override
public void onDestroy() {
IBinder b = ServiceManager.getService(USB_SERVICE);
IUsbManager service = IUsbManager.Stub.asInterface(b);
// send response via pending intent
Intent intent = new Intent();
try {
if (mDevice != null) {
intent.putExtra(UsbManager.EXTRA_DEVICE, mDevice);
if (mPermissionGranted) {
service.grantDevicePermission(mDevice, mUid);
if (mAlwaysUse.isChecked()) {
final int userId = UserHandle.getUserId(mUid);
service.setDevicePackage(mDevice, mPackageName, userId);
}
}
}
if (mAccessory != null) {
intent.putExtra(UsbManager.EXTRA_ACCESSORY, mAccessory);
if (mPermissionGranted) {
service.grantAccessoryPermission(mAccessory, mUid);
if (mAlwaysUse.isChecked()) {
final int userId = UserHandle.getUserId(mUid);
service.setAccessoryPackage(mAccessory, mPackageName, userId);
}
}
}
intent.putExtra(UsbManager.EXTRA_PERMISSION_GRANTED, mPermissionGranted);
mPendingIntent.send(this, 0, intent);
} catch (PendingIntent.CanceledException e) {
Log.w(TAG, "PendingIntent was cancelled");
} catch (RemoteException e) {
Log.e(TAG, "IUsbService connection failed", e);
}
if (mDisconnectedReceiver != null) {
unregisterReceiver(mDisconnectedReceiver);
}
super.onDestroy();
}
public void onClick(DialogInterface dialog, int which) {
if (which == AlertDialog.BUTTON_POSITIVE) {
mPermissionGranted = true;
}
finish();
}
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (mClearDefaultHint == null) return;
if(isChecked) {
mClearDefaultHint.setVisibility(View.VISIBLE);
} else {
mClearDefaultHint.setVisibility(View.GONE);
}
}
}
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