Added isPredictiveBack flag to stackAnimation function with selector

extensions-compose-experimental/api/android/extensions-compose-experimental.api

@@ -83,9 +83,9 @@ public abstract interface class com/arkivanov/decompose/extensions/compose/exper
 
 public final class com/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimationKt {
 	public static final fun stackAnimation (Lcom/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimator;ZLkotlin/jvm/functions/Function1;)Lcom/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimation;
-	public static final fun stackAnimation (ZLkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function3;)Lcom/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimation;
+	public static final fun stackAnimation (ZLkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function4;)Lcom/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimation;
 	public static synthetic fun stackAnimation$default (Lcom/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimator;ZLkotlin/jvm/functions/Function1;ILjava/lang/Object;)Lcom/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimation;
-	public static synthetic fun stackAnimation$default (ZLkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function3;ILjava/lang/Object;)Lcom/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimation;
+	public static synthetic fun stackAnimation$default (ZLkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function4;ILjava/lang/Object;)Lcom/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimation;
 }
 
 public abstract interface class com/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimationProvider {

extensions-compose-experimental/api/extensions-compose-experimental.klib.api

@@ -67,7 +67,7 @@ final fun <#A: kotlin/Any, #B: kotlin/Any, #C: kotlin/Any, #D: kotlin/Any, #E: k
 final fun <#A: kotlin/Any, #B: kotlin/Any, #C: kotlin/Any, #D: kotlin/Any> com.arkivanov.decompose.extensions.compose.experimental.panels/ChildPanels(com.arkivanov.decompose.router.panels/ChildPanels<#A, #B, #C, #D, kotlin/Nothing, kotlin/Nothing>, kotlin/Function3<com.arkivanov.decompose/Child.Created<#A, #B>, androidx.compose.runtime/Composer, kotlin/Int, kotlin/Unit>, kotlin/Function3<com.arkivanov.decompose/Child.Created<#C, #D>, androidx.compose.runtime/Composer, kotlin/Int, kotlin/Unit>, androidx.compose.ui/Modifier?, kotlin/Function2<androidx.compose.runtime/Composer, kotlin/Int, kotlin/Unit>?, com.arkivanov.decompose.extensions.compose.experimental.panels/ChildPanelsLayout?, com.arkivanov.decompose.extensions.compose.experimental.panels/ChildPanelsAnimators?, kotlin/Function1<com.arkivanov.decompose.router.panels/ChildPanels<#A, #B, #C, #D, kotlin/Nothing, kotlin/Nothing>, com.arkivanov.decompose.extensions.compose.experimental.stack.animation/PredictiveBackParams?>?, androidx.compose.runtime/Composer?, kotlin/Int, kotlin/Int) // com.arkivanov.decompose.extensions.compose.experimental.panels/ChildPanels|ChildPanels(com.arkivanov.decompose.router.panels.ChildPanels<0:0,0:1,0:2,0:3,kotlin.Nothing,kotlin.Nothing>;kotlin.Function3<com.arkivanov.decompose.Child.Created<0:0,0:1>,androidx.compose.runtime.Composer,kotlin.Int,kotlin.Unit>;kotlin.Function3<com.arkivanov.decompose.Child.Created<0:2,0:3>,androidx.compose.runtime.Composer,kotlin.Int,kotlin.Unit>;androidx.compose.ui.Modifier?;kotlin.Function2<androidx.compose.runtime.Composer,kotlin.Int,kotlin.Unit>?;com.arkivanov.decompose.extensions.compose.experimental.panels.ChildPanelsLayout?;com.arkivanov.decompose.extensions.compose.experimental.panels.ChildPanelsAnimators?;kotlin.Function1<com.arkivanov.decompose.router.panels.ChildPanels<0:0,0:1,0:2,0:3,kotlin.Nothing,kotlin.Nothing>,com.arkivanov.decompose.extensions.compose.experimental.stack.animation.PredictiveBackParams?>?;androidx.compose.runtime.Composer?;kotlin.Int;kotlin.Int){0§<kotlin.Any>;1§<kotlin.Any>;2§<kotlin.Any>;3§<kotlin.Any>}[0]
 final fun <#A: kotlin/Any, #B: kotlin/Any, #C: kotlin/Any, #D: kotlin/Any> com.arkivanov.decompose.extensions.compose.experimental.panels/ChildPanels(com.arkivanov.decompose.value/Value<com.arkivanov.decompose.router.panels/ChildPanels<#A, #B, #C, #D, kotlin/Nothing, kotlin/Nothing>>, kotlin/Function3<com.arkivanov.decompose/Child.Created<#A, #B>, androidx.compose.runtime/Composer, kotlin/Int, kotlin/Unit>, kotlin/Function3<com.arkivanov.decompose/Child.Created<#C, #D>, androidx.compose.runtime/Composer, kotlin/Int, kotlin/Unit>, androidx.compose.ui/Modifier?, kotlin/Function2<androidx.compose.runtime/Composer, kotlin/Int, kotlin/Unit>?, com.arkivanov.decompose.extensions.compose.experimental.panels/ChildPanelsLayout?, com.arkivanov.decompose.extensions.compose.experimental.panels/ChildPanelsAnimators?, kotlin/Function1<com.arkivanov.decompose.router.panels/ChildPanels<#A, #B, #C, #D, kotlin/Nothing, kotlin/Nothing>, com.arkivanov.decompose.extensions.compose.experimental.stack.animation/PredictiveBackParams?>?, androidx.compose.runtime/Composer?, kotlin/Int, kotlin/Int) // com.arkivanov.decompose.extensions.compose.experimental.panels/ChildPanels|ChildPanels(com.arkivanov.decompose.value.Value<com.arkivanov.decompose.router.panels.ChildPanels<0:0,0:1,0:2,0:3,kotlin.Nothing,kotlin.Nothing>>;kotlin.Function3<com.arkivanov.decompose.Child.Created<0:0,0:1>,androidx.compose.runtime.Composer,kotlin.Int,kotlin.Unit>;kotlin.Function3<com.arkivanov.decompose.Child.Created<0:2,0:3>,androidx.compose.runtime.Composer,kotlin.Int,kotlin.Unit>;androidx.compose.ui.Modifier?;kotlin.Function2<androidx.compose.runtime.Composer,kotlin.Int,kotlin.Unit>?;com.arkivanov.decompose.extensions.compose.experimental.panels.ChildPanelsLayout?;com.arkivanov.decompose.extensions.compose.experimental.panels.ChildPanelsAnimators?;kotlin.Function1<com.arkivanov.decompose.router.panels.ChildPanels<0:0,0:1,0:2,0:3,kotlin.Nothing,kotlin.Nothing>,com.arkivanov.decompose.extensions.compose.experimental.stack.animation.PredictiveBackParams?>?;androidx.compose.runtime.Composer?;kotlin.Int;kotlin.Int){0§<kotlin.Any>;1§<kotlin.Any>;2§<kotlin.Any>;3§<kotlin.Any>}[0]
 final fun <#A: kotlin/Any, #B: kotlin/Any> com.arkivanov.decompose.extensions.compose.experimental.stack.animation/stackAnimation(com.arkivanov.decompose.extensions.compose.experimental.stack.animation/StackAnimator? = ..., kotlin/Boolean = ..., kotlin/Function1<com.arkivanov.decompose.router.stack/ChildStack<#A, #B>, com.arkivanov.decompose.extensions.compose.experimental.stack.animation/PredictiveBackParams?> = ...): com.arkivanov.decompose.extensions.compose.experimental.stack.animation/StackAnimation<#A, #B> // com.arkivanov.decompose.extensions.compose.experimental.stack.animation/stackAnimation|stackAnimation(com.arkivanov.decompose.extensions.compose.experimental.stack.animation.StackAnimator?;kotlin.Boolean;kotlin.Function1<com.arkivanov.decompose.router.stack.ChildStack<0:0,0:1>,com.arkivanov.decompose.extensions.compose.experimental.stack.animation.PredictiveBackParams?>){0§<kotlin.Any>;1§<kotlin.Any>}[0]
-final fun <#A: kotlin/Any, #B: kotlin/Any> com.arkivanov.decompose.extensions.compose.experimental.stack.animation/stackAnimation(kotlin/Boolean = ..., kotlin/Function1<com.arkivanov.decompose.router.stack/ChildStack<#A, #B>, com.arkivanov.decompose.extensions.compose.experimental.stack.animation/PredictiveBackParams?> = ..., kotlin/Function3<com.arkivanov.decompose/Child.Created<#A, #B>, com.arkivanov.decompose/Child.Created<#A, #B>, com.arkivanov.decompose.extensions.compose.stack.animation/Direction, com.arkivanov.decompose.extensions.compose.experimental.stack.animation/StackAnimator?>): com.arkivanov.decompose.extensions.compose.experimental.stack.animation/StackAnimation<#A, #B> // com.arkivanov.decompose.extensions.compose.experimental.stack.animation/stackAnimation|stackAnimation(kotlin.Boolean;kotlin.Function1<com.arkivanov.decompose.router.stack.ChildStack<0:0,0:1>,com.arkivanov.decompose.extensions.compose.experimental.stack.animation.PredictiveBackParams?>;kotlin.Function3<com.arkivanov.decompose.Child.Created<0:0,0:1>,com.arkivanov.decompose.Child.Created<0:0,0:1>,com.arkivanov.decompose.extensions.compose.stack.animation.Direction,com.arkivanov.decompose.extensions.compose.experimental.stack.animation.StackAnimator?>){0§<kotlin.Any>;1§<kotlin.Any>}[0]
+final fun <#A: kotlin/Any, #B: kotlin/Any> com.arkivanov.decompose.extensions.compose.experimental.stack.animation/stackAnimation(kotlin/Boolean = ..., kotlin/Function1<com.arkivanov.decompose.router.stack/ChildStack<#A, #B>, com.arkivanov.decompose.extensions.compose.experimental.stack.animation/PredictiveBackParams?> = ..., kotlin/Function4<com.arkivanov.decompose/Child.Created<#A, #B>, com.arkivanov.decompose/Child.Created<#A, #B>, com.arkivanov.decompose.extensions.compose.stack.animation/Direction, kotlin/Boolean, com.arkivanov.decompose.extensions.compose.experimental.stack.animation/StackAnimator?>): com.arkivanov.decompose.extensions.compose.experimental.stack.animation/StackAnimation<#A, #B> // com.arkivanov.decompose.extensions.compose.experimental.stack.animation/stackAnimation|stackAnimation(kotlin.Boolean;kotlin.Function1<com.arkivanov.decompose.router.stack.ChildStack<0:0,0:1>,com.arkivanov.decompose.extensions.compose.experimental.stack.animation.PredictiveBackParams?>;kotlin.Function4<com.arkivanov.decompose.Child.Created<0:0,0:1>,com.arkivanov.decompose.Child.Created<0:0,0:1>,com.arkivanov.decompose.extensions.compose.stack.animation.Direction,kotlin.Boolean,com.arkivanov.decompose.extensions.compose.experimental.stack.animation.StackAnimator?>){0§<kotlin.Any>;1§<kotlin.Any>}[0]
 final fun <#A: kotlin/Any, #B: kotlin/Any> com.arkivanov.decompose.extensions.compose.experimental.stack/ChildStack(com.arkivanov.decompose.router.stack/ChildStack<#A, #B>, androidx.compose.ui/Modifier?, com.arkivanov.decompose.extensions.compose.experimental.stack.animation/StackAnimation<#A, #B>?, kotlin/Function4<androidx.compose.animation/AnimatedVisibilityScope, com.arkivanov.decompose/Child.Created<#A, #B>, androidx.compose.runtime/Composer, kotlin/Int, kotlin/Unit>, androidx.compose.runtime/Composer?, kotlin/Int, kotlin/Int) // com.arkivanov.decompose.extensions.compose.experimental.stack/ChildStack|ChildStack(com.arkivanov.decompose.router.stack.ChildStack<0:0,0:1>;androidx.compose.ui.Modifier?;com.arkivanov.decompose.extensions.compose.experimental.stack.animation.StackAnimation<0:0,0:1>?;kotlin.Function4<androidx.compose.animation.AnimatedVisibilityScope,com.arkivanov.decompose.Child.Created<0:0,0:1>,androidx.compose.runtime.Composer,kotlin.Int,kotlin.Unit>;androidx.compose.runtime.Composer?;kotlin.Int;kotlin.Int){0§<kotlin.Any>;1§<kotlin.Any>}[0]
 final fun <#A: kotlin/Any, #B: kotlin/Any> com.arkivanov.decompose.extensions.compose.experimental.stack/ChildStack(com.arkivanov.decompose.value/Value<com.arkivanov.decompose.router.stack/ChildStack<#A, #B>>, androidx.compose.ui/Modifier?, com.arkivanov.decompose.extensions.compose.experimental.stack.animation/StackAnimation<#A, #B>?, kotlin/Function4<androidx.compose.animation/AnimatedVisibilityScope, com.arkivanov.decompose/Child.Created<#A, #B>, androidx.compose.runtime/Composer, kotlin/Int, kotlin/Unit>, androidx.compose.runtime/Composer?, kotlin/Int, kotlin/Int) // com.arkivanov.decompose.extensions.compose.experimental.stack/ChildStack|ChildStack(com.arkivanov.decompose.value.Value<com.arkivanov.decompose.router.stack.ChildStack<0:0,0:1>>;androidx.compose.ui.Modifier?;com.arkivanov.decompose.extensions.compose.experimental.stack.animation.StackAnimation<0:0,0:1>?;kotlin.Function4<androidx.compose.animation.AnimatedVisibilityScope,com.arkivanov.decompose.Child.Created<0:0,0:1>,androidx.compose.runtime.Composer,kotlin.Int,kotlin.Unit>;androidx.compose.runtime.Composer?;kotlin.Int;kotlin.Int){0§<kotlin.Any>;1§<kotlin.Any>}[0]
 final fun com.arkivanov.decompose.extensions.compose.experimental.panels/com_arkivanov_decompose_extensions_compose_experimental_panels_ChildPanelsAnimators$stableprop_getter(): kotlin/Int // com.arkivanov.decompose.extensions.compose.experimental.panels/com_arkivanov_decompose_extensions_compose_experimental_panels_ChildPanelsAnimators$stableprop_getter|com_arkivanov_decompose_extensions_compose_experimental_panels_ChildPanelsAnimators$stableprop_getter(){}[0]

extensions-compose-experimental/api/jvm/extensions-compose-experimental.api

@@ -83,9 +83,9 @@ public abstract interface class com/arkivanov/decompose/extensions/compose/exper
 
 public final class com/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimationKt {
 	public static final fun stackAnimation (Lcom/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimator;ZLkotlin/jvm/functions/Function1;)Lcom/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimation;
-	public static final fun stackAnimation (ZLkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function3;)Lcom/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimation;
+	public static final fun stackAnimation (ZLkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function4;)Lcom/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimation;
 	public static synthetic fun stackAnimation$default (Lcom/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimator;ZLkotlin/jvm/functions/Function1;ILjava/lang/Object;)Lcom/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimation;
-	public static synthetic fun stackAnimation$default (ZLkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function3;ILjava/lang/Object;)Lcom/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimation;
+	public static synthetic fun stackAnimation$default (ZLkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function4;ILjava/lang/Object;)Lcom/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimation;
 }
 
 public abstract interface class com/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimationProvider {

extensions-compose-experimental/src/commonMain/kotlin/com/arkivanov/decompose/extensions/compose/experimental/stack/animation/DefaultStackAnimation.kt

@@ -38,7 +38,12 @@ import kotlinx.coroutines.launch
 internal class DefaultStackAnimation<C : Any, T : Any>(
     private val disableInputDuringAnimation: Boolean,
     private val predictiveBackParams: (ChildStack<C, T>) -> PredictiveBackParams?,
-    private val selector: (child: Child.Created<C, T>, otherChild: Child.Created<C, T>, direction: Direction) -> StackAnimator?,
+    private val selector: (
+        child: Child.Created<C, T>,
+        otherChild: Child.Created<C, T>,
+        direction: Direction,
+        isPredictiveBack: Boolean,
+    ) -> StackAnimator?,
 ) : StackAnimation<C, T> {
 
     @Composable
@@ -223,13 +228,14 @@ internal class DefaultStackAnimation<C : Any, T : Any>(
         direction: Direction,
         transitionState: TransitionState<EnterExitState>,
         otherChild: Child.Created<C, T>,
+        isPredictiveBack: Boolean = false,
         predictiveBackAnimator: StackAnimator? = null,
     ): AnimationItem<C, T> =
         AnimationItem(
             child = child,
             direction = direction,
             transitionState = transitionState,
-            animator = predictiveBackAnimator ?: selector(child, otherChild, direction),
+            animator = predictiveBackAnimator ?: selector(child, otherChild, direction, isPredictiveBack),
         )
 
     private inner class PredictiveBackCallback(
@@ -269,13 +275,15 @@ internal class DefaultStackAnimation<C : Any, T : Any>(
                         direction = Direction.ENTER_BACK,
                         transitionState = animationHandler.enterTransitionState,
                         otherChild = exitChild,
+                        isPredictiveBack = true,
                         predictiveBackAnimator = animationHandler.animatable?.let { anim -> SimpleStackAnimator { anim.enterModifier } },
                     ),
                     AnimationItem(
                         child = exitChild,
                         direction = Direction.EXIT_FRONT,
                         transitionState = animationHandler.exitTransitionState,
                         otherChild = enterChild,
+                        isPredictiveBack = true,
                         predictiveBackAnimator = animationHandler.animatable?.let { anim -> SimpleStackAnimator { anim.exitModifier } },
                     ),
                 )

extensions-compose-experimental/src/commonMain/kotlin/com/arkivanov/decompose/extensions/compose/experimental/stack/animation/StackAnimation.kt

@@ -29,13 +29,19 @@ fun interface StackAnimation<C : Any, T : Any> {
  * @param predictiveBackParams a function that returns [PredictiveBackParams] for the specified [ChildStack],
  * or `null`. The predictive back gesture is enabled if the value returned for the specified [ChildStack]
  * is *not* `null`, and disabled if the returned value is `null`.
- * @param selector provides an optional [StackAnimator] for the current [Child], other [Child] and [Direction].
+ * @param selector provides an optional [StackAnimator] for the current [Child], other [Child], [Direction] and
+ * `isPredictiveBack` flag.
  */
 @ExperimentalDecomposeApi
 fun <C : Any, T : Any> stackAnimation(
     disableInputDuringAnimation: Boolean = true,
     predictiveBackParams: (ChildStack<C, T>) -> PredictiveBackParams? = { null },
-    selector: (child: Child.Created<C, T>, otherChild: Child.Created<C, T>, direction: Direction) -> StackAnimator?,
+    selector: (
+        child: Child.Created<C, T>,
+        otherChild: Child.Created<C, T>,
+        direction: Direction,
+        isPredictiveBack: Boolean,
+    ) -> StackAnimator?,
 ): StackAnimation<C, T> =
     DefaultStackAnimation(
         disableInputDuringAnimation = disableInputDuringAnimation,
@@ -61,5 +67,5 @@ fun <C : Any, T : Any> stackAnimation(
     DefaultStackAnimation(
         disableInputDuringAnimation = disableInputDuringAnimation,
         predictiveBackParams = predictiveBackParams,
-        selector = { _, _, _ -> animator },
+        selector = { _, _, _, _ -> animator },
     )