mihon/app/src/main/java/eu/kanade/tachiyomi/widget/RevealAnimationView.kt

package eu.kanade.tachiyomi.widget

import android.animation.Animator
import android.animation.AnimatorListenerAdapter
import android.content.Context
import android.util.AttributeSet
import android.view.View
import android.view.ViewAnimationUtils

class RevealAnimationView @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null) :
        View(context, attrs) {

    /**
     * Hides the animation view with a animation
     *
     * @param centerX x starting point
     * @param centerY y starting point
     * @param initialRadius size of radius of animation
     */
    fun hideRevealEffect(centerX: Int, centerY: Int, initialRadius: Int) {
        // Make the view visible.
        this.visibility = View.VISIBLE

        // Create the animation (the final radius is zero).
        val anim = ViewAnimationUtils.createCircularReveal(
                this, centerX, centerY, initialRadius.toFloat(), 0f)

        // Set duration of animation.
        anim.duration = 500

        // make the view invisible when the animation is done
        anim.addListener(object : AnimatorListenerAdapter() {
            override fun onAnimationEnd(animation: Animator) {
                super.onAnimationEnd(animation)
                this@RevealAnimationView.visibility = View.INVISIBLE
            }
        })

        anim.start()
    }

    /**
     * Fills the animation view with a animation
     *
     * @param centerX x starting point
     * @param centerY y starting point
     * @param listener animation listener
     *
     * @return sdk version lower then 21
     */
    fun showRevealEffect(centerX: Int, centerY: Int, listener: Animator.AnimatorListener): Boolean {
        this.visibility = View.VISIBLE

        val height = this.height

        // Create animation
        val anim = ViewAnimationUtils.createCircularReveal(
                this, centerX, centerY, 0f, height.toFloat())

        // Set duration of animation
        anim.duration = 350

        anim.addListener(listener)
        anim.start()
        return true
    }
}