auto import from //depot/cupcake/@135843

src/com/android/settings/bluetooth/BluetoothPinDialog.java

@@ -0,0 +1,202 @@
+/*
+ * Copyright (C) 2008 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.settings.bluetooth;
+
+import android.bluetooth.BluetoothDevice;
+import android.bluetooth.BluetoothIntent;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.os.Bundle;
+import android.text.Editable;
+import android.text.InputFilter;
+import android.text.TextWatcher;
+import android.text.InputFilter.LengthFilter;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.TextView;
+
+import com.android.internal.app.AlertActivity;
+import com.android.internal.app.AlertController;
+import com.android.settings.R;
+
+/**
+ * BluetoothPinDialog asks the user to enter a PIN for pairing with a remote
+ * Bluetooth device. It is an activity that appears as a dialog.
+ */
+public class BluetoothPinDialog extends AlertActivity implements DialogInterface.OnClickListener,
+        TextWatcher {
+    private static final String TAG = "BluetoothPinDialog";
+
+    private LocalBluetoothManager mLocalManager;
+    private String mAddress;
+    private EditText mPinView;
+    private Button mOkButton;
+
+    private static final String INSTANCE_KEY_PAIRING_CANCELED = "received_pairing_canceled";
+    private boolean mReceivedPairingCanceled;
+    
+    private BroadcastReceiver mReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            if (!BluetoothIntent.PAIRING_CANCEL_ACTION.equals(intent.getAction())) {
+                return;
+            }
+            
+            String address = intent.getStringExtra(BluetoothIntent.ADDRESS);
+            if (address == null || address.equals(mAddress)) {
+                onReceivedPairingCanceled();
+            }
+        }
+    };
+    
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        Intent intent = getIntent();
+        if (!intent.getAction().equals(BluetoothIntent.PAIRING_REQUEST_ACTION))
+        {
+            Log.e(TAG,
+                  "Error: this activity may be started only with intent " +
+                  BluetoothIntent.PAIRING_REQUEST_ACTION);
+            finish();
+        }
+        
+        mLocalManager = LocalBluetoothManager.getInstance(this);
+        mAddress = intent.getStringExtra(BluetoothIntent.ADDRESS);
+        
+        // Set up the "dialog"
+        final AlertController.AlertParams p = mAlertParams;
+        p.mIconId = android.R.drawable.ic_dialog_info;
+        p.mTitle = getString(R.string.bluetooth_pin_entry);
+        p.mView = createView();
+        p.mPositiveButtonText = getString(android.R.string.ok);
+        p.mPositiveButtonListener = this;
+        p.mNegativeButtonText = getString(android.R.string.cancel);
+        p.mNegativeButtonListener = this;
+        setupAlert();
+        
+        mOkButton = mAlert.getButton(DialogInterface.BUTTON_POSITIVE);
+        mOkButton.setEnabled(false);
+
+        /*
+         * Leave this registered through pause/resume since we still want to
+         * finish the activity in the background if pairing is canceled.
+         */
+        registerReceiver(mReceiver, new IntentFilter(BluetoothIntent.PAIRING_CANCEL_ACTION));
+    }
+
+    @Override
+    protected void onRestoreInstanceState(Bundle savedInstanceState) {
+        super.onRestoreInstanceState(savedInstanceState);
+        
+        mReceivedPairingCanceled = savedInstanceState.getBoolean(INSTANCE_KEY_PAIRING_CANCELED);
+        if (mReceivedPairingCanceled) {
+            onReceivedPairingCanceled();
+        }
+    }
+
+    @Override
+    protected void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        
+        outState.putBoolean(INSTANCE_KEY_PAIRING_CANCELED, mReceivedPairingCanceled);
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        
+        unregisterReceiver(mReceiver);
+    }
+
+    private View createView() {
+        View view = getLayoutInflater().inflate(R.layout.bluetooth_pin_entry, null);
+        
+        String name = mLocalManager.getLocalDeviceManager().getName(mAddress);
+        TextView messageView = (TextView) view.findViewById(R.id.message);
+        messageView.setText(getString(R.string.bluetooth_enter_pin_msg, name));
+        
+        mPinView = (EditText) view.findViewById(R.id.text);
+        mPinView.addTextChangedListener(this);
+        // Maximum of 10 characters in a PIN
+        mPinView.setFilters(new InputFilter[] { new LengthFilter(10) });
+        
+        return view;
+    }
+
+    public void afterTextChanged(Editable s) {
+        if (s.length() > 0) {
+            mOkButton.setEnabled(true);
+        }
+    }
+
+    private void onReceivedPairingCanceled() {
+        mReceivedPairingCanceled = true;
+        
+        TextView messageView = (TextView) findViewById(R.id.message);
+        messageView.setText(getString(R.string.bluetooth_pairing_error_message,
+                mLocalManager.getLocalDeviceManager().getName(mAddress)));
+        
+        mPinView.setVisibility(View.GONE);
+        mPinView.clearFocus();
+        mPinView.removeTextChangedListener(this);
+
+        mOkButton.setEnabled(true);
+        mAlert.getButton(DialogInterface.BUTTON_NEGATIVE).setVisibility(View.GONE);
+    }
+    
+    private void onPair(String pin) {
+        byte[] pinBytes = BluetoothDevice.convertPinToBytes(pin);
+        
+        if (pinBytes == null) {
+            return;
+        }
+        
+        mLocalManager.getBluetoothManager().setPin(mAddress, pinBytes);
+    }
+
+    private void onCancel() {
+        mLocalManager.getBluetoothManager().cancelBondProcess(mAddress);
+    }
+    
+    public void onClick(DialogInterface dialog, int which) {
+        switch (which) {
+            case DialogInterface.BUTTON_POSITIVE:
+                onPair(mPinView.getText().toString());
+                break;
+                
+            case DialogInterface.BUTTON_NEGATIVE:
+                onCancel();
+                break;
+        }
+    }
+
+    /* Not used */
+    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+    }
+
+    /* Not used */
+    public void onTextChanged(CharSequence s, int start, int before, int count) {
+    }
+
+}