1 /* 2 * Copyright (C) 2011 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.ComponentName; 22 import android.content.Context; 23 import android.content.DialogInterface; 24 import android.content.Intent; 25 import android.content.pm.ApplicationInfo; 26 import android.content.pm.PackageManager; 27 import android.content.pm.ResolveInfo; 28 import android.hardware.usb.IUsbManager; 29 import android.hardware.usb.UsbAccessory; 30 import android.hardware.usb.UsbManager; 31 import android.os.Bundle; 32 import android.os.IBinder; 33 import android.os.RemoteException; 34 import android.os.ServiceManager; 35 import android.util.Log; 36 import android.view.LayoutInflater; 37 import android.view.View; 38 import android.widget.CheckBox; 39 import android.widget.CompoundButton; 40 import android.widget.TextView; 41 42 import com.android.internal.app.AlertActivity; 43 import com.android.internal.app.AlertController; 44 45 import com.android.systemui.R; 46 47 public class UsbConfirmActivity extends AlertActivity 48 implements DialogInterface.OnClickListener, CheckBox.OnCheckedChangeListener { 49 50 private static final String TAG = "UsbConfirmActivity"; 51 52 private CheckBox mAlwaysUse; 53 private TextView mClearDefaultHint; 54 private UsbAccessory mAccessory; 55 private ResolveInfo mResolveInfo; 56 private boolean mPermissionGranted; 57 private UsbDisconnectedReceiver mDisconnectedReceiver; 58 59 @Override onCreate(Bundle icicle)60 public void onCreate(Bundle icicle) { 61 super.onCreate(icicle); 62 63 Intent intent = getIntent(); 64 mAccessory = (UsbAccessory)intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY); 65 mDisconnectedReceiver = new UsbDisconnectedReceiver(this, mAccessory); 66 mResolveInfo = (ResolveInfo)intent.getParcelableExtra("rinfo"); 67 68 PackageManager packageManager = getPackageManager(); 69 String appName = mResolveInfo.loadLabel(packageManager).toString(); 70 71 final AlertController.AlertParams ap = mAlertParams; 72 ap.mIcon = mResolveInfo.loadIcon(packageManager); 73 ap.mTitle = appName; 74 ap.mMessage = getString(R.string.usb_accessory_confirm_prompt, appName); 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 use" checkbox 81 LayoutInflater inflater = (LayoutInflater)getSystemService( 82 Context.LAYOUT_INFLATER_SERVICE); 83 ap.mView = inflater.inflate(com.android.internal.R.layout.always_use_checkbox, null); 84 mAlwaysUse = (CheckBox)ap.mView.findViewById(com.android.internal.R.id.alwaysUse); 85 mAlwaysUse.setText(R.string.always_use_accessory); 86 mAlwaysUse.setOnCheckedChangeListener(this); 87 mClearDefaultHint = (TextView)ap.mView.findViewById( 88 com.android.internal.R.id.clearDefaultHint); 89 mClearDefaultHint.setVisibility(View.GONE); 90 91 setupAlert(); 92 93 } 94 95 @Override onDestroy()96 protected void onDestroy() { 97 if (mDisconnectedReceiver != null) { 98 unregisterReceiver(mDisconnectedReceiver); 99 } 100 super.onDestroy(); 101 } 102 onClick(DialogInterface dialog, int which)103 public void onClick(DialogInterface dialog, int which) { 104 if (which == AlertDialog.BUTTON_POSITIVE) { 105 try { 106 IBinder b = ServiceManager.getService(USB_SERVICE); 107 IUsbManager service = IUsbManager.Stub.asInterface(b); 108 int uid = mResolveInfo.activityInfo.applicationInfo.uid; 109 boolean alwaysUse = mAlwaysUse.isChecked(); 110 Intent intent = new Intent(UsbManager.ACTION_USB_ACCESSORY_ATTACHED); 111 intent.putExtra(UsbManager.EXTRA_ACCESSORY, mAccessory); 112 intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 113 intent.setComponent( 114 new ComponentName(mResolveInfo.activityInfo.packageName, 115 mResolveInfo.activityInfo.name)); 116 117 // grant permission for the accessory 118 service.grantAccessoryPermission(mAccessory, uid); 119 // set or clear default setting 120 if (alwaysUse) { 121 service.setAccessoryPackage(mAccessory, 122 mResolveInfo.activityInfo.packageName); 123 } else { 124 service.setAccessoryPackage(mAccessory, null); 125 } 126 startActivity(intent); 127 } catch (Exception e) { 128 Log.e(TAG, "Unable to start activity", e); 129 } 130 } 131 finish(); 132 } 133 onCheckedChanged(CompoundButton buttonView, boolean isChecked)134 public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { 135 if (mClearDefaultHint == null) return; 136 137 if(isChecked) { 138 mClearDefaultHint.setVisibility(View.VISIBLE); 139 } else { 140 mClearDefaultHint.setVisibility(View.GONE); 141 } 142 } 143 } 144