/*
* Copyright (C) 2016 stfalcon.com
*
* 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.stfalcon.frescoimageviewer.drawee;
import android.view.ViewParent;
import com.facebook.drawee.generic.GenericDraweeHierarchy;
import com.facebook.drawee.view.DraweeView;
import me.relex.photodraweeview.Attacher;
import me.relex.photodraweeview.OnScaleChangeListener;
/*
* Created by Alexander Krol (troy379) on 29.08.16.
*/
class NonInterceptableAttacher extends Attacher {
private OnScaleChangeListener scaleChangeListener;
public NonInterceptableAttacher(DraweeView<GenericDraweeHierarchy> draweeView) {
super(draweeView);
}
@Override
public void onDrag(float dx, float dy) {
DraweeView<GenericDraweeHierarchy> draweeView = getDraweeView();
if (draweeView != null) {
getDrawMatrix().postTranslate(dx, dy);
checkMatrixAndInvalidate();
ViewParent parent = draweeView.getParent();
if (parent == null) {
return;
}
if (getScale() == 1.0f) {
parent.requestDisallowInterceptTouchEvent(false);
} else {
parent.requestDisallowInterceptTouchEvent(true);
}
}
}
@Override
public void onDetachedFromWindow() {
super.onDetachedFromWindow();
}
@Override
public void setOnScaleChangeListener(OnScaleChangeListener listener) {
this.scaleChangeListener = listener;
}
@Override
public void onScale(float scaleFactor, float focusX, float focusY) {
super.onScale(scaleFactor, focusX, focusY);
if (scaleChangeListener != null) {
scaleChangeListener.onScaleChange(scaleFactor, focusX, focusY);
}
}
}