[BOOK-155] chore: CrossFadeNavDecorator 추가

navigation 애니메이션 통일성을 위함, 일단은 미적용

Author: easyhooon

app/src/main/kotlin/com/ninecraft/booket/di/CircuitModule.kt

@@ -28,6 +28,7 @@ abstract class CircuitModule {
         ): Circuit = Circuit.Builder()
             .addPresenterFactories(presenterFactories)
             .addUiFactories(uiFactories)
+            // .setAnimatedNavDecoratorFactory(CrossFadeNavDecoratorFactory())
             .build()
     }
 }

app/src/main/kotlin/com/ninecraft/booket/di/CrossFadeNavDecorator.kt

@@ -0,0 +1,29 @@
+package com.ninecraft.booket.di
+
+import androidx.compose.animation.AnimatedContentTransitionScope
+import androidx.compose.animation.ContentTransform
+import androidx.compose.animation.core.tween
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.animation.togetherWith
+import com.slack.circuit.backstack.NavArgument
+import com.slack.circuit.foundation.NavigatorDefaults
+import com.slack.circuit.foundation.animation.AnimatedNavDecorator
+import com.slack.circuit.foundation.animation.AnimatedNavEvent
+import com.slack.circuit.foundation.animation.AnimatedNavState
+
+data class CrossFadeNavDecoratorFactory(val durationMillis: Int = 300) :
+    AnimatedNavDecorator.Factory {
+    override fun <T : NavArgument> create(): AnimatedNavDecorator<T, *> =
+        CrossFadeNavDecorator(durationMillis)
+}
+
+class CrossFadeNavDecorator<T : NavArgument>(private val durationMillis: Int) :
+    AnimatedNavDecorator<T, NavigatorDefaults.DefaultDecorator.DefaultAnimatedState<T>> by NavigatorDefaults.DefaultDecorator<T>() {
+
+    override fun AnimatedContentTransitionScope<AnimatedNavState>.transitionSpec(
+        animatedNavEvent: AnimatedNavEvent,
+    ): ContentTransform {
+        return fadeIn(tween(durationMillis)) togetherWith fadeOut(tween(durationMillis))
+    }
+}