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      1 /*
      2  * Copyright (C) 2009 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.email.activity;
     18 
     19 import com.android.email.R;
     20 
     21 import android.content.Context;
     22 import android.util.AttributeSet;
     23 import android.widget.MultiAutoCompleteTextView;
     24 
     25 /**
     26  * This is a MultiAutoCompleteTextView which sets the error state
     27  * (@see TextView.setError) when email address validation fails.
     28  */
     29 class AddressTextView extends MultiAutoCompleteTextView {
     30     private class ForwardValidator implements Validator {
     31         private Validator mValidator = null;
     32 
     33         public CharSequence fixText(CharSequence invalidText) {
     34             mIsValid = false;
     35             return invalidText;
     36         }
     37 
     38         public boolean isValid(CharSequence text) {
     39             return mValidator != null ? mValidator.isValid(text) : true;
     40         }
     41 
     42         public void setValidator(Validator validator) {
     43             mValidator = validator;
     44         }
     45     }
     46 
     47     private boolean mIsValid = true;
     48     private final ForwardValidator mInternalValidator = new ForwardValidator();
     49 
     50     public AddressTextView(Context context, AttributeSet attrs) {
     51         super(context, attrs);
     52         super.setValidator(mInternalValidator);
     53     }
     54 
     55     @Override
     56     public void setValidator(Validator validator) {
     57         mInternalValidator.setValidator(validator);
     58     }
     59 
     60     @Override
     61     public void performValidation() {
     62         mIsValid = true;
     63         super.performValidation();
     64         markError(!mIsValid);
     65     }
     66 
     67     private void markError(boolean enable) {
     68         if (enable) {
     69             setError(getContext().getString(R.string.message_compose_error_invalid_email));
     70         } else {
     71             setError(null);
     72         }
     73     }
     74 }
     75