| /* |
| * 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.internal.widget; |
| |
| import android.content.Context; |
| import android.util.AttributeSet; |
| import android.view.KeyEvent; |
| import android.view.MotionEvent; |
| import android.widget.ImageButton; |
| |
| import com.android.internal.R; |
| |
| /** |
| * This class exists purely to cancel long click events. |
| */ |
| public class NumberPickerButton extends ImageButton { |
| |
| private NumberPicker mNumberPicker; |
| |
| public NumberPickerButton(Context context, AttributeSet attrs, |
| int defStyle) { |
| super(context, attrs, defStyle); |
| } |
| |
| public NumberPickerButton(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| public NumberPickerButton(Context context) { |
| super(context); |
| } |
| |
| public void setNumberPicker(NumberPicker picker) { |
| mNumberPicker = picker; |
| } |
| |
| @Override |
| public boolean onTouchEvent(MotionEvent event) { |
| cancelLongpressIfRequired(event); |
| return super.onTouchEvent(event); |
| } |
| |
| @Override |
| public boolean onTrackballEvent(MotionEvent event) { |
| cancelLongpressIfRequired(event); |
| return super.onTrackballEvent(event); |
| } |
| |
| @Override |
| public boolean onKeyUp(int keyCode, KeyEvent event) { |
| if ((keyCode == KeyEvent.KEYCODE_DPAD_CENTER) |
| || (keyCode == KeyEvent.KEYCODE_ENTER)) { |
| cancelLongpress(); |
| } |
| return super.onKeyUp(keyCode, event); |
| } |
| |
| private void cancelLongpressIfRequired(MotionEvent event) { |
| if ((event.getAction() == MotionEvent.ACTION_CANCEL) |
| || (event.getAction() == MotionEvent.ACTION_UP)) { |
| cancelLongpress(); |
| } |
| } |
| |
| private void cancelLongpress() { |
| if (R.id.increment == getId()) { |
| mNumberPicker.cancelIncrement(); |
| } else if (R.id.decrement == getId()) { |
| mNumberPicker.cancelDecrement(); |
| } |
| } |
| } |