react-native-navigation/lib/android/app/src/main/java/com/reactnativenavigation/views/element/animators/BackgroundColorAnimator.kt

package com.reactnativenavigation.views.element.animators

import android.animation.Animator
import android.animation.ObjectAnimator
import android.view.View
import android.view.ViewGroup
import com.facebook.react.views.text.ReactTextView
import com.facebook.react.views.view.ReactViewBackgroundDrawable
import com.reactnativenavigation.parse.SharedElementTransitionOptions
import com.reactnativenavigation.utils.ColorUtils
import com.reactnativenavigation.utils.ViewUtils

class BackgroundColorAnimator(from: View, to: View) : PropertyAnimatorCreator<ViewGroup>(from, to) {
    override fun shouldAnimateProperty(fromChild: ViewGroup, toChild: ViewGroup): Boolean {
        return fromChild.background is ReactViewBackgroundDrawable &&
                toChild.background is ReactViewBackgroundDrawable && (fromChild.background as ReactViewBackgroundDrawable).color != (toChild.background as ReactViewBackgroundDrawable).color
    }

    override fun excludedViews() = listOf(ReactTextView::class.java)

    override fun create(options: SharedElementTransitionOptions): Animator {
        return ObjectAnimator.ofObject(
                BackgroundColorEvaluator(to.background as ReactViewBackgroundDrawable),
                ColorUtils.colorToLAB(ViewUtils.getBackgroundColor(from)),
                ColorUtils.colorToLAB(ViewUtils.getBackgroundColor(to))
        ).setDuration(options.getDuration())
    }
}