asfoury/projmag

package com.sdp13epfl2021.projmag.activities.listenerClass

import android.content.Context
import android.view.GestureDetector
import android.view.MotionEvent
import android.view.View
import androidx.recyclerview.widget.RecyclerView

/**
 * Makes the project list items clickable
 */
class MakeRecyclerListItemsClickListenable(
    context: Context,
    recyclerView: RecyclerView,
    private val mListener: OnItemClickListener?
) : RecyclerView.OnItemTouchListener {

    private val mGestureDetector: GestureDetector

    interface OnItemClickListener {
        fun onItemClick(view: View, position: Int)

        fun onItemLongClick(view: View?, position: Int)
    }

    init {

        mGestureDetector =
            GestureDetector(context, object : GestureDetector.SimpleOnGestureListener() {
                override fun onSingleTapUp(e: MotionEvent): Boolean {
                    return true
                }

                override fun onLongPress(e: MotionEvent) {
                    val childView = recyclerView.findChildViewUnder(e.x, e.y)

                    if (childView != null && mListener != null) {
                        mListener.onItemLongClick(
                            childView,
                            recyclerView.getChildAdapterPosition(childView)
                        )
                    }
                }
            })
    }

    override fun onInterceptTouchEvent(view: RecyclerView, e: MotionEvent): Boolean {
        val childView = view.findChildViewUnder(e.x, e.y)

        if (childView != null && mListener != null && mGestureDetector.onTouchEvent(e)) {
            mListener.onItemClick(childView, view.getChildAdapterPosition(childView))
        }

        return false
    }

    override fun onTouchEvent(view: RecyclerView, motionEvent: MotionEvent) {}

    override fun onRequestDisallowInterceptTouchEvent(disallowIntercept: Boolean) {}
}