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/*
 * Copyright 2013 serso aka se.solovyev
 *
 * 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.
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 * Contact details
 *
 * Email: [email protected]
 * Site:  http://se.solovyev.org
 */

package org.solovyev.android.view;

/**
 * User: serso
 * Date: 9/18/11
 * Time: 10:04 PM
 */


import android.content.Context;
import android.util.AttributeSet;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.widget.ImageButton;

/**
 * This class exists purely to cancel long click events, that got
 * started in NumberPicker
 */
public class PickerButton extends ImageButton {

	private Picker numberPicker;

	public PickerButton(Context context, AttributeSet attrs,
						int defStyle) {
		super(context, attrs, defStyle);
	}

	public PickerButton(Context context, AttributeSet attrs) {
		super(context, attrs);
	}

	public PickerButton(Context context) {
		super(context);
	}

	public void setNumberPicker(Picker picker) {
		numberPicker = 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()) {
			numberPicker.cancelIncrement();
		} else if (R.id.decrement == getId()) {
			numberPicker.cancelDecrement();
		}
	}

	public void onWindowFocusChanged(boolean hasWindowFocus) {
		super.onWindowFocusChanged(hasWindowFocus);
		if (!hasWindowFocus) {
			cancelLongpress();
		}
	}

}