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      1 /*
      2  * Copyright (C) 2010 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 package com.android.quicksearchbox.ui;
     17 
     18 import android.content.Context;
     19 import android.util.AttributeSet;
     20 import android.util.Log;
     21 import android.view.inputmethod.CompletionInfo;
     22 import android.view.inputmethod.InputMethodManager;
     23 import android.widget.EditText;
     24 
     25 /**
     26  * The query text field.
     27  */
     28 public class QueryTextView extends EditText {
     29 
     30     private static final boolean DBG = false;
     31     private static final String TAG = "QSB.QueryTextView";
     32 
     33     private CommitCompletionListener mCommitCompletionListener;
     34 
     35     public QueryTextView(Context context, AttributeSet attrs, int defStyle) {
     36         super(context, attrs, defStyle);
     37     }
     38 
     39     public QueryTextView(Context context, AttributeSet attrs) {
     40         super(context, attrs);
     41     }
     42 
     43     public QueryTextView(Context context) {
     44         super(context);
     45     }
     46 
     47     /**
     48      * Sets the text selection in the query text view.
     49      *
     50      * @param selectAll If {@code true}, selects the entire query.
     51      *        If {@false}, no characters are selected, and the cursor is placed
     52      *        at the end of the query.
     53      */
     54     public void setTextSelection(boolean selectAll) {
     55         if (selectAll) {
     56             selectAll();
     57         } else {
     58             setSelection(length());
     59         }
     60     }
     61 
     62     protected void replaceText(CharSequence text) {
     63         clearComposingText();
     64         setText(text);
     65         setTextSelection(false);
     66     }
     67 
     68     public void setCommitCompletionListener(CommitCompletionListener listener) {
     69         mCommitCompletionListener = listener;
     70     }
     71 
     72     private InputMethodManager getInputMethodManager() {
     73         return (InputMethodManager) getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
     74     }
     75 
     76     public void showInputMethod() {
     77         InputMethodManager imm = getInputMethodManager();
     78         if (imm != null) {
     79             imm.showSoftInput(this, 0);
     80         }
     81     }
     82 
     83     public void hideInputMethod() {
     84         InputMethodManager imm = getInputMethodManager();
     85         if (imm != null) {
     86             imm.hideSoftInputFromWindow(getWindowToken(), 0);
     87         }
     88     }
     89 
     90     @Override
     91     public void onCommitCompletion(CompletionInfo completion) {
     92         if (DBG) Log.d(TAG, "onCommitCompletion(" + completion + ")");
     93         hideInputMethod();
     94         replaceText(completion.getText());
     95         if (mCommitCompletionListener != null) {
     96             mCommitCompletionListener.onCommitCompletion(completion.getPosition());
     97         }
     98     }
     99 
    100     public interface CommitCompletionListener {
    101         void onCommitCompletion(int position);
    102     }
    103 
    104 }
    105