| /* |
| * Copyright (C) 2015 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.launcher3; |
| |
| import android.content.Context; |
| import android.util.AttributeSet; |
| import android.view.KeyEvent; |
| import android.widget.EditText; |
| |
| |
| /** |
| * The edit text that reports back when the back key has been pressed. |
| */ |
| public class ExtendedEditText extends EditText { |
| |
| /** |
| * Implemented by listeners of the back key. |
| */ |
| public interface OnBackKeyListener { |
| public boolean onBackKey(); |
| } |
| |
| private OnBackKeyListener mBackKeyListener; |
| |
| public ExtendedEditText(Context context) { |
| super(context); |
| } |
| |
| public ExtendedEditText(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| public ExtendedEditText(Context context, AttributeSet attrs, int defStyleAttr) { |
| super(context, attrs, defStyleAttr); |
| } |
| |
| public void setOnBackKeyListener(OnBackKeyListener listener) { |
| mBackKeyListener = listener; |
| } |
| |
| @Override |
| public boolean onKeyPreIme(int keyCode, KeyEvent event) { |
| // If this is a back key, propagate the key back to the listener |
| if (keyCode == KeyEvent.KEYCODE_BACK && event.getAction() == KeyEvent.ACTION_UP) { |
| if (mBackKeyListener != null) { |
| return mBackKeyListener.onBackKey(); |
| } |
| return false; |
| } |
| return super.onKeyPreIme(keyCode, event); |
| } |
| } |