/*
 * Aurora Store
 * Copyright (C) 2018  Rahul Kumar Patel <whyorean@gmail.com>
 *
 * Yalp Store
 * Copyright (C) 2018 Sergey Yeriomin <yeriomin@gmail.com>
 *
 * Aurora Store (a fork of Yalp Store )is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * Aurora Store is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Aurora Store.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.aurora.store.ui.view;

import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.animation.DecelerateInterpolator;
import android.widget.Scroller;

import androidx.viewpager.widget.ViewPager;

import java.lang.reflect.Field;

public class CustomViewPager extends ViewPager {

    private boolean viewScroll = false;

    public CustomViewPager(Context context) {
        super(context);
        setMyScroller();
    }

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

    public boolean isScroll() {
        return viewScroll;
    }

    public void setScroll(boolean viewScroll) {
        this.viewScroll = viewScroll;
    }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent event) {
        return viewScroll && super.onInterceptTouchEvent(event);
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        return viewScroll && super.onTouchEvent(event);
    }

    private void setMyScroller() {
        try {
            Class<?> viewpager = ViewPager.class;
            Field scroller = viewpager.getDeclaredField("mScroller");
            scroller.setAccessible(true);
            scroller.set(this, new MyScroller(getContext()));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public class MyScroller extends Scroller {
        MyScroller(Context context) {
            super(context, new DecelerateInterpolator());
        }

        @Override
        public void startScroll(int startX, int startY, int dx, int dy, int duration) {
            super.startScroll(startX, startY, dx, dy, 350 /*1 secs*/);
        }
    }
}
