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      1 /*
      2  * Copyright (C) 2012 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.systemui.usb;
     18 
     19 import android.app.Activity;
     20 import android.app.AlertDialog;
     21 import android.content.BroadcastReceiver;
     22 import android.content.Context;
     23 import android.content.DialogInterface;
     24 import android.content.Intent;
     25 import android.content.IntentFilter;
     26 import android.graphics.Typeface;
     27 import android.hardware.usb.IUsbManager;
     28 import android.hardware.usb.UsbDevice;
     29 import android.hardware.usb.UsbManager;
     30 import android.os.Bundle;
     31 import android.os.IBinder;
     32 import android.os.ServiceManager;
     33 import android.os.SystemProperties;
     34 import android.util.Log;
     35 import android.view.LayoutInflater;
     36 import android.view.View;
     37 import android.widget.CheckBox;
     38 import android.widget.LinearLayout;
     39 import android.widget.TextView;
     40 
     41 import com.android.internal.app.AlertActivity;
     42 import com.android.internal.app.AlertController;
     43 
     44 import com.android.systemui.R;
     45 
     46 public class UsbDebuggingActivity extends AlertActivity
     47                                   implements DialogInterface.OnClickListener {
     48     private static final String TAG = "UsbDebuggingActivity";
     49 
     50     private CheckBox mAlwaysAllow;
     51     private UsbDisconnectedReceiver mDisconnectedReceiver;
     52     private String mKey;
     53 
     54     @Override
     55     public void onCreate(Bundle icicle) {
     56         super.onCreate(icicle);
     57 
     58         if (SystemProperties.getInt("service.adb.tcp.port", 0) == 0) {
     59             mDisconnectedReceiver = new UsbDisconnectedReceiver(this);
     60         }
     61 
     62         Intent intent = getIntent();
     63         String fingerprints = intent.getStringExtra("fingerprints");
     64         mKey = intent.getStringExtra("key");
     65 
     66         if (fingerprints == null || mKey == null) {
     67             finish();
     68             return;
     69         }
     70 
     71         final AlertController.AlertParams ap = mAlertParams;
     72         ap.mTitle = getString(R.string.usb_debugging_title);
     73         ap.mIconId = com.android.internal.R.drawable.ic_dialog_usb;
     74         ap.mMessage = getString(R.string.usb_debugging_message, fingerprints);
     75         ap.mPositiveButtonText = getString(android.R.string.ok);
     76         ap.mNegativeButtonText = getString(android.R.string.cancel);
     77         ap.mPositiveButtonListener = this;
     78         ap.mNegativeButtonListener = this;
     79 
     80         // add "always allow" checkbox
     81         LayoutInflater inflater = LayoutInflater.from(ap.mContext);
     82         View checkbox = inflater.inflate(com.android.internal.R.layout.always_use_checkbox, null);
     83         mAlwaysAllow = (CheckBox)checkbox.findViewById(com.android.internal.R.id.alwaysUse);
     84         mAlwaysAllow.setText(getString(R.string.usb_debugging_always));
     85         ap.mView = checkbox;
     86 
     87         setupAlert();
     88     }
     89 
     90     private class UsbDisconnectedReceiver extends BroadcastReceiver {
     91         private final Activity mActivity;
     92         public UsbDisconnectedReceiver(Activity activity) {
     93             mActivity = activity;
     94         }
     95 
     96         @Override
     97         public void onReceive(Context content, Intent intent) {
     98             String action = intent.getAction();
     99             if (!UsbManager.ACTION_USB_STATE.equals(action)) {
    100                 return;
    101             }
    102             boolean connected = intent.getBooleanExtra(UsbManager.USB_CONNECTED, false);
    103             if (!connected) {
    104                 mActivity.finish();
    105             }
    106         }
    107     }
    108 
    109     @Override
    110     public void onStart() {
    111         super.onStart();
    112         IntentFilter filter = new IntentFilter(UsbManager.ACTION_USB_STATE);
    113         registerReceiver(mDisconnectedReceiver, filter);
    114     }
    115 
    116     @Override
    117     protected void onStop() {
    118         if (mDisconnectedReceiver != null) {
    119             unregisterReceiver(mDisconnectedReceiver);
    120         }
    121         super.onStop();
    122     }
    123 
    124     @Override
    125     public void onClick(DialogInterface dialog, int which) {
    126         boolean allow = (which == AlertDialog.BUTTON_POSITIVE);
    127         boolean alwaysAllow = allow && mAlwaysAllow.isChecked();
    128         try {
    129             IBinder b = ServiceManager.getService(USB_SERVICE);
    130             IUsbManager service = IUsbManager.Stub.asInterface(b);
    131             if (allow) {
    132                 service.allowUsbDebugging(alwaysAllow, mKey);
    133             } else {
    134                 service.denyUsbDebugging();
    135             }
    136         } catch (Exception e) {
    137             Log.e(TAG, "Unable to notify Usb service", e);
    138         }
    139         finish();
    140     }
    141 }
    142