improve Empty default things and add realization for NavigationNodeFa…

…ctory

CHANGELOG.md

@@ -2,6 +2,11 @@
 
 ## 0.5.6
 
+* `Core`:
+  * Add default config for `Empty` node (just empty config object)
+  * Add default factory for `Empty` node, based on default config
+  * Add `NavigationNodeFactory.Typed` default node factory with inline factory fun
+
 ## 0.5.5
 
 * `Compose`:

core/src/commonMain/kotlin/NavigationNode.kt

@@ -163,6 +163,13 @@ abstract class NavigationNode<Config : Base, Base>(
         config: T,
         id: NavigationNodeId = NavigationNodeId()
     ) : NavigationNode<T, Base>(id) {
+        object Config
         override val configState: StateFlow<T> = MutableStateFlow(config).asStateFlow()
+
+        companion object {
+            val DefaultFactory = NavigationNodeFactory.Companion.Typed<Any, Config> { chain, config ->
+                Empty(chain, config)
+            }
+        }
     }
 }

core/src/commonMain/kotlin/NavigationNodeFactory.kt

@@ -1,8 +1,37 @@
 package dev.inmo.navigation.core
 
+import kotlin.reflect.KClass
+
 fun interface NavigationNodeFactory<Base> {
     fun createNode(
         navigationChain: NavigationChain<Base>,
         config: Base
     ): NavigationNode<out Base, Base>?
+
+    companion object {
+        open class Typed<Base : Any, T : Base>(
+            private val kClass: KClass<T>,
+            private val block: (navigationChain: NavigationChain<Base>, config: T) -> NavigationNode<T, Base>
+        ) : NavigationNodeFactory<Base> {
+            override fun createNode(
+                navigationChain: NavigationChain<Base>,
+                config: Base
+            ): NavigationNode<out Base, Base>? {
+                return if (kClass.isInstance(config)) {
+                    block(navigationChain, config as T)
+                } else {
+                    null
+                }
+            }
+
+            companion object {
+                inline operator fun <Base : Any, reified T : Base> invoke(
+                    noinline block: (navigationChain: NavigationChain<Base>, config: T) -> NavigationNode<T, Base>
+                ) = Typed<Base, T>(
+                    kClass = T::class,
+                    block
+                )
+            }
+        }
+    }
 }