Blanket copy of PhoneApp to services/Telephony.

First phase of splitting out InCallUI from PhoneApp.

Change-Id: I237341c4ff00e96c677caa4580b251ef3432931b
diff --git a/src/com/android/phone/EditPinPreference.java b/src/com/android/phone/EditPinPreference.java
new file mode 100644
index 0000000..af0040d
--- /dev/null
+++ b/src/com/android/phone/EditPinPreference.java
@@ -0,0 +1,110 @@
+/*
+ * 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.phone;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.preference.EditTextPreference;
+import android.text.InputType;
+import android.text.method.DigitsKeyListener;
+import android.text.method.PasswordTransformationMethod;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.EditText;
+
+import java.util.Map;
+
+/**
+ * Class similar to the com.android.settings.EditPinPreference
+ * class, with a couple of modifications, including a different layout 
+ * for the dialog.
+ */
+public class EditPinPreference extends EditTextPreference {
+
+    private boolean shouldHideButtons;
+    
+    interface OnPinEnteredListener {
+        void onPinEntered(EditPinPreference preference, boolean positiveResult);
+    }
+    
+    private OnPinEnteredListener mPinListener;
+
+    public void setOnPinEnteredListener(OnPinEnteredListener listener) {
+        mPinListener = listener;
+    }
+    
+    public EditPinPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public EditPinPreference(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+    
+    /**
+     * Overridden to setup the correct dialog layout, as well as setting up 
+     * other properties for the pin / puk entry field.
+     */
+    @Override
+    protected View onCreateDialogView() {
+        // set the dialog layout
+        setDialogLayoutResource(R.layout.pref_dialog_editpin);
+        
+        View dialog = super.onCreateDialogView();
+
+        getEditText().setInputType(InputType.TYPE_CLASS_NUMBER |
+            InputType.TYPE_NUMBER_VARIATION_PASSWORD);
+
+        return dialog;
+    }
+    
+    @Override
+    protected void onBindDialogView(View view) {
+        super.onBindDialogView(view);
+        
+        // If the layout does not contain an edittext, hide the buttons.
+        shouldHideButtons = (view.findViewById(android.R.id.edit) == null);
+    }
+    
+    @Override
+    protected void onPrepareDialogBuilder(AlertDialog.Builder builder) {
+        super.onPrepareDialogBuilder(builder);
+        
+        // hide the buttons if we need to.
+        if (shouldHideButtons) {
+            builder.setPositiveButton(null, this);
+            builder.setNegativeButton(null, this);
+        }
+    }
+    
+    @Override
+    protected void onDialogClosed(boolean positiveResult) {
+        super.onDialogClosed(positiveResult);
+        if (mPinListener != null) {
+            mPinListener.onPinEntered(this, positiveResult);
+        }
+    }
+    
+    /**
+     * Externally visible method to bring up the dialog to 
+     * for multi-step / multi-dialog requests (like changing 
+     * the SIM pin). 
+     */
+    public void showPinDialog() {
+        showDialog(null);
+    }
+}