.github/workflows/build.yml

@@ -29,13 +29,6 @@ jobs:
             ${{ runner.os }}-gradle-
       - name: Build
         run: ./gradlew build -Dsplit_targets
-      - name: Android instrumentation tests
-        uses: reactivecircus/android-emulator-runner@v2
-        with:
-          api-level: 21
-          arch: x86
-          disable-animations: true
-          script: ./gradlew :extensions-compose-jetpack:connectedDebugAndroidTest --stacktrace
   macos-build:
     name: Build on macOS
     runs-on: macos-latest

README.md

@@ -1,4 +1,3 @@
-[![Maven Central](https://img.shields.io/maven-central/v/com.arkivanov.decompose/decompose?color=blue)](https://search.maven.org/artifact/com.arkivanov.decompose/decompose)
 [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](http://www.apache.org/licenses/LICENSE-2.0)
 [![Twitter URL](https://img.shields.io/badge/Twitter-@arkann1985-blue.svg?style=social&logo=twitter)](https://twitter.com/arkann1985)
 

build.gradle.kts

@@ -69,9 +69,11 @@ allprojects {
         google()
         maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
     }
-}
 
-// Workaround for https://youtrack.jetbrains.com/issue/KT-49109 until Kotlin 1.6.20
-plugins.withType<org.jetbrains.kotlin.gradle.targets.js.nodejs.NodeJsRootPlugin> {
-    the<org.jetbrains.kotlin.gradle.targets.js.nodejs.NodeJsRootExtension>().nodeVersion = "16.0.0"
+    afterEvaluate {
+        // Workaround for https://youtrack.jetbrains.com/issue/KT-52776
+        rootProject.extensions.findByType<org.jetbrains.kotlin.gradle.targets.js.nodejs.NodeJsRootExtension>()?.apply {
+            versions.webpackCli.version = "4.10.0"
+        }
+    }
 }

decompose/api/android/decompose.api

@@ -115,6 +115,100 @@ public final class com/arkivanov/decompose/router/RouterState {
 	public fun toString ()Ljava/lang/String;
 }
 
+public final class com/arkivanov/decompose/router/StackSaverImpl$SavedEntry$Creator : android/os/Parcelable$Creator {
+	public fun <init> ()V
+	public final fun createFromParcel (Landroid/os/Parcel;)Lcom/arkivanov/decompose/router/StackSaverImpl$SavedEntry;
+	public synthetic fun createFromParcel (Landroid/os/Parcel;)Ljava/lang/Object;
+	public final fun newArray (I)[Lcom/arkivanov/decompose/router/StackSaverImpl$SavedEntry;
+	public synthetic fun newArray (I)[Ljava/lang/Object;
+}
+
+public final class com/arkivanov/decompose/router/StackSaverImpl$SavedState$Creator : android/os/Parcelable$Creator {
+	public fun <init> ()V
+	public final fun createFromParcel (Landroid/os/Parcel;)Lcom/arkivanov/decompose/router/StackSaverImpl$SavedState;
+	public synthetic fun createFromParcel (Landroid/os/Parcel;)Ljava/lang/Object;
+	public final fun newArray (I)[Lcom/arkivanov/decompose/router/StackSaverImpl$SavedState;
+	public synthetic fun newArray (I)[Ljava/lang/Object;
+}
+
+public final class com/arkivanov/decompose/router/stack/ChildStack {
+	public fun <init> (Lcom/arkivanov/decompose/Child$Created;Ljava/util/List;)V
+	public synthetic fun <init> (Lcom/arkivanov/decompose/Child$Created;Ljava/util/List;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public fun <init> (Ljava/lang/Object;Ljava/lang/Object;)V
+	public final fun component1 ()Lcom/arkivanov/decompose/Child$Created;
+	public final fun component2 ()Ljava/util/List;
+	public final fun copy (Lcom/arkivanov/decompose/Child$Created;Ljava/util/List;)Lcom/arkivanov/decompose/router/stack/ChildStack;
+	public static synthetic fun copy$default (Lcom/arkivanov/decompose/router/stack/ChildStack;Lcom/arkivanov/decompose/Child$Created;Ljava/util/List;ILjava/lang/Object;)Lcom/arkivanov/decompose/router/stack/ChildStack;
+	public fun equals (Ljava/lang/Object;)Z
+	public final fun getActive ()Lcom/arkivanov/decompose/Child$Created;
+	public final fun getBackStack ()Ljava/util/List;
+	public final fun getItems ()Ljava/util/List;
+	public fun hashCode ()I
+	public fun toString ()Ljava/lang/String;
+}
+
+public final class com/arkivanov/decompose/router/stack/ChildStackFactoryKt {
+	public static final fun childStack (Lcom/arkivanov/decompose/ComponentContext;Lcom/arkivanov/decompose/router/stack/StackNavigationSource;Lkotlin/jvm/functions/Function0;Lkotlin/reflect/KClass;Ljava/lang/String;ZLkotlin/jvm/functions/Function2;)Lcom/arkivanov/decompose/value/Value;
+	public static synthetic fun childStack$default (Lcom/arkivanov/decompose/ComponentContext;Lcom/arkivanov/decompose/router/stack/StackNavigationSource;Lkotlin/jvm/functions/Function0;Lkotlin/reflect/KClass;Ljava/lang/String;ZLkotlin/jvm/functions/Function2;ILjava/lang/Object;)Lcom/arkivanov/decompose/value/Value;
+}
+
+public abstract interface class com/arkivanov/decompose/router/stack/StackNavigation : com/arkivanov/decompose/router/stack/StackNavigationSource, com/arkivanov/decompose/router/stack/StackNavigator {
+}
+
+public final class com/arkivanov/decompose/router/stack/StackNavigationFactoryKt {
+	public static final fun StackNavigation ()Lcom/arkivanov/decompose/router/stack/StackNavigation;
+}
+
+public abstract interface class com/arkivanov/decompose/router/stack/StackNavigationSource {
+	public abstract fun subscribe (Lkotlin/jvm/functions/Function1;)V
+	public abstract fun unsubscribe (Lkotlin/jvm/functions/Function1;)V
+}
+
+public final class com/arkivanov/decompose/router/stack/StackNavigationSource$Event {
+	public fun <init> (Lkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function2;)V
+	public synthetic fun <init> (Lkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function2;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public final fun getOnComplete ()Lkotlin/jvm/functions/Function2;
+	public final fun getTransformer ()Lkotlin/jvm/functions/Function1;
+}
+
+public abstract interface class com/arkivanov/decompose/router/stack/StackNavigator {
+	public abstract fun navigate (Lkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function2;)V
+}
+
+public final class com/arkivanov/decompose/router/stack/StackNavigatorExtKt {
+	public static final fun bringToFront (Lcom/arkivanov/decompose/router/stack/StackNavigator;Ljava/lang/Object;Lkotlin/jvm/functions/Function0;)V
+	public static synthetic fun bringToFront$default (Lcom/arkivanov/decompose/router/stack/StackNavigator;Ljava/lang/Object;Lkotlin/jvm/functions/Function0;ILjava/lang/Object;)V
+	public static final fun navigate (Lcom/arkivanov/decompose/router/stack/StackNavigator;Lkotlin/jvm/functions/Function1;)V
+	public static final fun pop (Lcom/arkivanov/decompose/router/stack/StackNavigator;Lkotlin/jvm/functions/Function1;)V
+	public static synthetic fun pop$default (Lcom/arkivanov/decompose/router/stack/StackNavigator;Lkotlin/jvm/functions/Function1;ILjava/lang/Object;)V
+	public static final fun popWhile (Lcom/arkivanov/decompose/router/stack/StackNavigator;Lkotlin/jvm/functions/Function1;)V
+	public static final fun popWhile (Lcom/arkivanov/decompose/router/stack/StackNavigator;Lkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function1;)V
+	public static final fun push (Lcom/arkivanov/decompose/router/stack/StackNavigator;Ljava/lang/Object;Lkotlin/jvm/functions/Function0;)V
+	public static synthetic fun push$default (Lcom/arkivanov/decompose/router/stack/StackNavigator;Ljava/lang/Object;Lkotlin/jvm/functions/Function0;ILjava/lang/Object;)V
+	public static final fun replaceCurrent (Lcom/arkivanov/decompose/router/stack/StackNavigator;Ljava/lang/Object;Lkotlin/jvm/functions/Function0;)V
+	public static synthetic fun replaceCurrent$default (Lcom/arkivanov/decompose/router/stack/StackNavigator;Ljava/lang/Object;Lkotlin/jvm/functions/Function0;ILjava/lang/Object;)V
+}
+
+public final class com/arkivanov/decompose/router/stack/StackSaverImpl$SavedEntry$Creator : android/os/Parcelable$Creator {
+	public fun <init> ()V
+	public final fun createFromParcel (Landroid/os/Parcel;)Lcom/arkivanov/decompose/router/stack/StackSaverImpl$SavedEntry;
+	public synthetic fun createFromParcel (Landroid/os/Parcel;)Ljava/lang/Object;
+	public final fun newArray (I)[Lcom/arkivanov/decompose/router/stack/StackSaverImpl$SavedEntry;
+	public synthetic fun newArray (I)[Ljava/lang/Object;
+}
+
+public final class com/arkivanov/decompose/router/stack/StackSaverImpl$SavedState$Creator : android/os/Parcelable$Creator {
+	public fun <init> ()V
+	public final fun createFromParcel (Landroid/os/Parcel;)Lcom/arkivanov/decompose/router/stack/StackSaverImpl$SavedState;
+	public synthetic fun createFromParcel (Landroid/os/Parcel;)Ljava/lang/Object;
+	public final fun newArray (I)[Lcom/arkivanov/decompose/router/stack/StackSaverImpl$SavedState;
+	public synthetic fun newArray (I)[Ljava/lang/Object;
+}
+
+public abstract interface class com/arkivanov/decompose/router/stack/webhistory/WebHistoryController {
+	public abstract fun attach (Lcom/arkivanov/decompose/router/stack/StackNavigator;Lcom/arkivanov/decompose/value/Value;Lkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function1;)V
+}
+
 public abstract interface class com/arkivanov/decompose/router/webhistory/WebHistoryController {
 	public abstract fun attach (Lcom/arkivanov/decompose/router/Router;Lkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function1;)V
 }

decompose/api/jvm/decompose.api

@@ -102,6 +102,68 @@ public final class com/arkivanov/decompose/router/RouterState {
 	public fun toString ()Ljava/lang/String;
 }
 
+public final class com/arkivanov/decompose/router/stack/ChildStack {
+	public fun <init> (Lcom/arkivanov/decompose/Child$Created;Ljava/util/List;)V
+	public synthetic fun <init> (Lcom/arkivanov/decompose/Child$Created;Ljava/util/List;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public fun <init> (Ljava/lang/Object;Ljava/lang/Object;)V
+	public final fun component1 ()Lcom/arkivanov/decompose/Child$Created;
+	public final fun component2 ()Ljava/util/List;
+	public final fun copy (Lcom/arkivanov/decompose/Child$Created;Ljava/util/List;)Lcom/arkivanov/decompose/router/stack/ChildStack;
+	public static synthetic fun copy$default (Lcom/arkivanov/decompose/router/stack/ChildStack;Lcom/arkivanov/decompose/Child$Created;Ljava/util/List;ILjava/lang/Object;)Lcom/arkivanov/decompose/router/stack/ChildStack;
+	public fun equals (Ljava/lang/Object;)Z
+	public final fun getActive ()Lcom/arkivanov/decompose/Child$Created;
+	public final fun getBackStack ()Ljava/util/List;
+	public final fun getItems ()Ljava/util/List;
+	public fun hashCode ()I
+	public fun toString ()Ljava/lang/String;
+}
+
+public final class com/arkivanov/decompose/router/stack/ChildStackFactoryKt {
+	public static final fun childStack (Lcom/arkivanov/decompose/ComponentContext;Lcom/arkivanov/decompose/router/stack/StackNavigationSource;Lkotlin/jvm/functions/Function0;Lkotlin/reflect/KClass;Ljava/lang/String;ZLkotlin/jvm/functions/Function2;)Lcom/arkivanov/decompose/value/Value;
+	public static synthetic fun childStack$default (Lcom/arkivanov/decompose/ComponentContext;Lcom/arkivanov/decompose/router/stack/StackNavigationSource;Lkotlin/jvm/functions/Function0;Lkotlin/reflect/KClass;Ljava/lang/String;ZLkotlin/jvm/functions/Function2;ILjava/lang/Object;)Lcom/arkivanov/decompose/value/Value;
+}
+
+public abstract interface class com/arkivanov/decompose/router/stack/StackNavigation : com/arkivanov/decompose/router/stack/StackNavigationSource, com/arkivanov/decompose/router/stack/StackNavigator {
+}
+
+public final class com/arkivanov/decompose/router/stack/StackNavigationFactoryKt {
+	public static final fun StackNavigation ()Lcom/arkivanov/decompose/router/stack/StackNavigation;
+}
+
+public abstract interface class com/arkivanov/decompose/router/stack/StackNavigationSource {
+	public abstract fun subscribe (Lkotlin/jvm/functions/Function1;)V
+	public abstract fun unsubscribe (Lkotlin/jvm/functions/Function1;)V
+}
+
+public final class com/arkivanov/decompose/router/stack/StackNavigationSource$Event {
+	public fun <init> (Lkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function2;)V
+	public synthetic fun <init> (Lkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function2;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public final fun getOnComplete ()Lkotlin/jvm/functions/Function2;
+	public final fun getTransformer ()Lkotlin/jvm/functions/Function1;
+}
+
+public abstract interface class com/arkivanov/decompose/router/stack/StackNavigator {
+	public abstract fun navigate (Lkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function2;)V
+}
+
+public final class com/arkivanov/decompose/router/stack/StackNavigatorExtKt {
+	public static final fun bringToFront (Lcom/arkivanov/decompose/router/stack/StackNavigator;Ljava/lang/Object;Lkotlin/jvm/functions/Function0;)V
+	public static synthetic fun bringToFront$default (Lcom/arkivanov/decompose/router/stack/StackNavigator;Ljava/lang/Object;Lkotlin/jvm/functions/Function0;ILjava/lang/Object;)V
+	public static final fun navigate (Lcom/arkivanov/decompose/router/stack/StackNavigator;Lkotlin/jvm/functions/Function1;)V
+	public static final fun pop (Lcom/arkivanov/decompose/router/stack/StackNavigator;Lkotlin/jvm/functions/Function1;)V
+	public static synthetic fun pop$default (Lcom/arkivanov/decompose/router/stack/StackNavigator;Lkotlin/jvm/functions/Function1;ILjava/lang/Object;)V
+	public static final fun popWhile (Lcom/arkivanov/decompose/router/stack/StackNavigator;Lkotlin/jvm/functions/Function1;)V
+	public static final fun popWhile (Lcom/arkivanov/decompose/router/stack/StackNavigator;Lkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function1;)V
+	public static final fun push (Lcom/arkivanov/decompose/router/stack/StackNavigator;Ljava/lang/Object;Lkotlin/jvm/functions/Function0;)V
+	public static synthetic fun push$default (Lcom/arkivanov/decompose/router/stack/StackNavigator;Ljava/lang/Object;Lkotlin/jvm/functions/Function0;ILjava/lang/Object;)V
+	public static final fun replaceCurrent (Lcom/arkivanov/decompose/router/stack/StackNavigator;Ljava/lang/Object;Lkotlin/jvm/functions/Function0;)V
+	public static synthetic fun replaceCurrent$default (Lcom/arkivanov/decompose/router/stack/StackNavigator;Ljava/lang/Object;Lkotlin/jvm/functions/Function0;ILjava/lang/Object;)V
+}
+
+public abstract interface class com/arkivanov/decompose/router/stack/webhistory/WebHistoryController {
+	public abstract fun attach (Lcom/arkivanov/decompose/router/stack/StackNavigator;Lcom/arkivanov/decompose/value/Value;Lkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function1;)V
+}
+
 public abstract interface class com/arkivanov/decompose/router/webhistory/WebHistoryController {
 	public abstract fun attach (Lcom/arkivanov/decompose/router/Router;Lkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function1;)V
 }

decompose/src/commonMain/kotlin/com/arkivanov/decompose/Relay.kt

@@ -0,0 +1,27 @@
+package com.arkivanov.decompose
+
+internal class Relay<T> {
+
+    init {
+        ensureNeverFrozen()
+    }
+
+    private var observers = emptySet<(T) -> Unit>()
+
+    private val queue =
+        SerializedQueue<T> { value ->
+            observers.forEach { it(value) }
+        }
+
+    fun subscribe(observer: (T) -> Unit) {
+        this.observers += observer
+    }
+
+    fun unsubscribe(observer: (T) -> Unit) {
+        this.observers -= observer
+    }
+
+    fun accept(value: T) {
+        queue.offer(value)
+    }
+}

decompose/src/commonMain/kotlin/com/arkivanov/decompose/router/Router.kt

@@ -2,6 +2,10 @@ package com.arkivanov.decompose.router
 
 import com.arkivanov.decompose.value.Value
 
+/**
+ * Deprecated. Please use Child Stack instead. See the [documentation](https://arkivanov.github.io/Decompose/child-stack/overview/).
+ */
+@Deprecated(message = "Use Child Stack instead")
 interface Router<C : Any, out T : Any> {
 
     /**

decompose/src/commonMain/kotlin/com/arkivanov/decompose/router/RouterExt.kt

@@ -4,7 +4,10 @@ import com.arkivanov.decompose.Child
 
 /**
  * A convenience method for [Router.navigate].
+ *
+ * Deprecated. Please use `Child Stack` instead. See the [documentation](https://arkivanov.github.io/Decompose/child-stack/overview/).
  */
+@Deprecated("Use Child Stack instead")
 fun <C : Any> Router<C, *>.navigate(transformer: (stack: List<C>) -> List<C>) {
     navigate(transformer = transformer, onComplete = { _, _ -> })
 }
@@ -17,8 +20,11 @@ fun <C : Any> Router<C, *>.push(configuration: C) {
 /**
  * Pushes the provided [configuration] at the top of the stack.
  *
+ * Deprecated. Please use `Child Stack` instead. See the [documentation](https://arkivanov.github.io/Decompose/child-stack/overview/).
+ *
  * @param onComplete called when the navigation is finished (either synchronously or asynchronously).
  */
+@Deprecated("Use Child Stack instead")
 fun <C : Any> Router<C, *>.push(configuration: C, onComplete: () -> Unit = {}) {
     navigate(transformer = { it + configuration }, onComplete = { _, _ -> onComplete() })
 }
@@ -29,7 +35,10 @@ fun <C : Any> Router<C, *>.push(configuration: C, onComplete: () -> Unit = {}) {
  * @param onComplete called when the navigation is finished (either synchronously or asynchronously).
  * The `isSuccess` argument is `true` if the stack size was greater than 1 and a component was popped,
  * `false` otherwise.
+ *
+ * Deprecated. Please use `Child Stack` instead. See the [documentation](https://arkivanov.github.io/Decompose/child-stack/overview/).
  */
+@Deprecated("Use Child Stack instead")
 fun <C : Any> Router<C, *>.pop(onComplete: (isSuccess: Boolean) -> Unit = {}) {
     navigate(
         transformer = { stack -> stack.takeIf { it.size > 1 }?.dropLast(1) ?: stack },
@@ -39,17 +48,24 @@ fun <C : Any> Router<C, *>.pop(onComplete: (isSuccess: Boolean) -> Unit = {}) {
 
 /**
  * Drops the configurations at the top of the stack while the [predicate] returns `true`.
+ *
+ * Deprecated. Please use `Child Stack` instead. See the [documentation](https://arkivanov.github.io/Decompose/child-stack/overview/).
  */
+@Suppress("DeprecatedCallableAddReplaceWith")
+@Deprecated("Use Child Stack instead")
 inline fun <C : Any> Router<C, *>.popWhile(crossinline predicate: (C) -> Boolean) {
     popWhile(predicate = predicate, onComplete = {})
 }
 
 /**
  * Drops the configurations at the top of the stack while the [predicate] returns true
  *
+ * Deprecated. Please use `Child Stack` instead. See the [documentation](https://arkivanov.github.io/Decompose/child-stack/overview/).
+ *
  * @param onComplete called when the navigation is finished (either synchronously or asynchronously).
  * The `isSuccess` argument is `true` if at least one component has been popped.
  */
+@Deprecated("Use Child Stack instead")
 inline fun <C : Any> Router<C, *>.popWhile(
     crossinline predicate: (C) -> Boolean,
     crossinline onComplete: (isSuccess: Boolean) -> Unit,
@@ -68,8 +84,11 @@ fun <C : Any> Router<C, *>.replaceCurrent(configuration: C) {
 /**
  * Replaces the current configuration at the top of the stack with the provided [configuration].
  *
+ * Deprecated. Please use `Child Stack` instead. See the [documentation](https://arkivanov.github.io/Decompose/child-stack/overview/).
+ *
  * @param onComplete called when the navigation is finished (either synchronously or asynchronously).
  */
+@Deprecated("Use Child Stack instead")
 fun <C : Any> Router<C, *>.replaceCurrent(configuration: C, onComplete: () -> Unit = {}) {
     navigate(
         transformer = { it.dropLast(1) + configuration },
@@ -85,12 +104,21 @@ fun <C : Any> Router<C, *>.bringToFront(configuration: C) {
 /**
  * Removes all components with configurations of [configuration]'s class, and adds the provided [configuration] to the top of the stack.
  * The operation is performed as one transaction. If there is already a component with the same configuration, it will not be recreated.
+ *
+ * Deprecated. Please use `Child Stack` instead. See the [documentation](https://arkivanov.github.io/Decompose/child-stack/overview/).
  */
+@Deprecated("Use Child Stack instead")
 fun <C : Any> Router<C, *>.bringToFront(configuration: C, onComplete: () -> Unit = {}) {
     navigate(
         transformer = { stack -> stack.filterNot { it::class == configuration::class } + configuration },
         onComplete = { _, _ -> onComplete() },
     )
 }
 
-val <C : Any, T : Any> Router<C, T>.activeChild: Child.Created<C, T> get() = state.value.activeChild
+/**
+ * Deprecated. Please use `Child Stack` instead. See the [documentation](https://arkivanov.github.io/Decompose/child-stack/overview/).
+ */
+@Suppress("DeprecatedCallableAddReplaceWith")
+@Deprecated("Use Child Stack instead")
+val <C : Any, T : Any> Router<C, T>.activeChild: Child.Created<C, T>
+    get() = state.value.activeChild