diff --git a/packages/SystemUI/compose/features/src/com/android/systemui/communal/ui/compose/CommunalContainer.kt b/packages/SystemUI/compose/features/src/com/android/systemui/communal/ui/compose/CommunalContainer.kt
index c073b79b..bbba826 100644
--- a/packages/SystemUI/compose/features/src/com/android/systemui/communal/ui/compose/CommunalContainer.kt
+++ b/packages/SystemUI/compose/features/src/com/android/systemui/communal/ui/compose/CommunalContainer.kt
@@ -85,13 +85,14 @@
     SceneTransitionLayout(
         state = sceneTransitionLayoutState,
         modifier = modifier.fillMaxSize(),
-        edgeDetector = FixedSizeEdgeDetector(ContainerDimensions.EdgeSwipeSize),
+        swipeSourceDetector = FixedSizeEdgeDetector(ContainerDimensions.EdgeSwipeSize),
     ) {
         scene(
             TransitionSceneKey.Blank,
             userActions =
                 mapOf(
-                    Swipe(SwipeDirection.Left, fromEdge = Edge.Right) to TransitionSceneKey.Communal
+                    Swipe(SwipeDirection.Left, fromSource = Edge.Right) to
+                        TransitionSceneKey.Communal
                 )
         ) {
             // This scene shows nothing only allowing for transitions to the communal scene.
@@ -102,7 +103,7 @@
             TransitionSceneKey.Communal,
             userActions =
                 mapOf(
-                    Swipe(SwipeDirection.Right, fromEdge = Edge.Left) to TransitionSceneKey.Blank
+                    Swipe(SwipeDirection.Right, fromSource = Edge.Left) to TransitionSceneKey.Blank
                 ),
         ) {
             CommunalScene(viewModel, modifier = modifier)
diff --git a/packages/SystemUI/compose/features/src/com/android/systemui/scene/ui/composable/SceneContainer.kt b/packages/SystemUI/compose/features/src/com/android/systemui/scene/ui/composable/SceneContainer.kt
index c35202c..9f9e1f5 100644
--- a/packages/SystemUI/compose/features/src/com/android/systemui/scene/ui/composable/SceneContainer.kt
+++ b/packages/SystemUI/compose/features/src/com/android/systemui/scene/ui/composable/SceneContainer.kt
@@ -183,7 +183,7 @@
         is UserAction.Swipe ->
             Swipe(
                 pointerCount = pointerCount,
-                fromEdge =
+                fromSource =
                     when (this.fromEdge) {
                         null -> null
                         Edge.LEFT -> SceneTransitionEdge.Left
diff --git a/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/EdgeDetector.kt b/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/EdgeDetector.kt
index 82d4239..b0dc3a1 100644
--- a/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/EdgeDetector.kt
+++ b/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/EdgeDetector.kt
@@ -23,24 +23,19 @@
 import androidx.compose.ui.unit.IntSize
 import androidx.compose.ui.unit.dp
 
-interface EdgeDetector {
-    /**
-     * Return the [Edge] associated to [position] inside a layout of size [layoutSize], given
-     * [density] and [orientation].
-     */
-    fun edge(
-        layoutSize: IntSize,
-        position: IntOffset,
-        density: Density,
-        orientation: Orientation,
-    ): Edge?
+/** The edge of a [SceneTransitionLayout]. */
+enum class Edge : SwipeSource {
+    Left,
+    Right,
+    Top,
+    Bottom,
 }
 
 val DefaultEdgeDetector = FixedSizeEdgeDetector(40.dp)
 
-/** An [EdgeDetector] that detects edges assuming a fixed edge size of [size]. */
-class FixedSizeEdgeDetector(val size: Dp) : EdgeDetector {
-    override fun edge(
+/** An [SwipeSourceDetector] that detects edges assuming a fixed edge size of [size]. */
+class FixedSizeEdgeDetector(val size: Dp) : SwipeSourceDetector {
+    override fun source(
         layoutSize: IntSize,
         position: IntOffset,
         density: Density,
diff --git a/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SceneGestureHandler.kt b/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SceneGestureHandler.kt
index 0a2370a..333eef7 100644
--- a/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SceneGestureHandler.kt
+++ b/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SceneGestureHandler.kt
@@ -80,8 +80,8 @@
     /** The [Swipe]s associated to the current gesture. */
     private var upOrLeftSwipe: Swipe? = null
     private var downOrRightSwipe: Swipe? = null
-    private var upOrLeftNoEdgeSwipe: Swipe? = null
-    private var downOrRightNoEdgeSwipe: Swipe? = null
+    private var upOrLeftNoSourceSwipe: Swipe? = null
+    private var downOrRightNoSourceSwipe: Swipe? = null
 
     /** The [UserActionResult] associated to up and down swipes. */
     private var upOrLeftResult: UserActionResult? = null
@@ -117,9 +117,9 @@
     }
 
     private fun setCurrentActions(fromScene: Scene, startedPosition: Offset?, pointersDown: Int) {
-        val fromEdge =
+        val fromSource =
             startedPosition?.let { position ->
-                layoutImpl.edgeDetector.edge(
+                layoutImpl.swipeSourceDetector.source(
                     fromScene.targetSize,
                     position.round(),
                     layoutImpl.density,
@@ -135,7 +135,7 @@
                         Orientation.Vertical -> SwipeDirection.Up
                     },
                 pointerCount = pointersDown,
-                fromEdge = fromEdge,
+                fromSource = fromSource,
             )
 
         val downOrRight =
@@ -146,19 +146,19 @@
                         Orientation.Vertical -> SwipeDirection.Down
                     },
                 pointerCount = pointersDown,
-                fromEdge = fromEdge,
+                fromSource = fromSource,
             )
 
-        if (fromEdge == null) {
+        if (fromSource == null) {
             upOrLeftSwipe = null
             downOrRightSwipe = null
-            upOrLeftNoEdgeSwipe = upOrLeft
-            downOrRightNoEdgeSwipe = downOrRight
+            upOrLeftNoSourceSwipe = upOrLeft
+            downOrRightNoSourceSwipe = downOrRight
         } else {
             upOrLeftSwipe = upOrLeft
             downOrRightSwipe = downOrRight
-            upOrLeftNoEdgeSwipe = upOrLeft.copy(fromEdge = null)
-            downOrRightNoEdgeSwipe = downOrRight.copy(fromEdge = null)
+            upOrLeftNoSourceSwipe = upOrLeft.copy(fromSource = null)
+            downOrRightNoSourceSwipe = downOrRight.copy(fromSource = null)
         }
     }
 
@@ -204,9 +204,9 @@
             return userActions[swipe ?: return null]
         }
 
-        upOrLeftResult = sceneToSwipePair(upOrLeftSwipe) ?: sceneToSwipePair(upOrLeftNoEdgeSwipe)
+        upOrLeftResult = sceneToSwipePair(upOrLeftSwipe) ?: sceneToSwipePair(upOrLeftNoSourceSwipe)
         downOrRightResult =
-            sceneToSwipePair(downOrRightSwipe) ?: sceneToSwipePair(downOrRightNoEdgeSwipe)
+            sceneToSwipePair(downOrRightSwipe) ?: sceneToSwipePair(downOrRightNoSourceSwipe)
     }
 
     /**
diff --git a/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SceneTransitionLayout.kt b/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SceneTransitionLayout.kt
index aa232df..7e0aa9c3 100644
--- a/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SceneTransitionLayout.kt
+++ b/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SceneTransitionLayout.kt
@@ -29,6 +29,7 @@
 import androidx.compose.ui.platform.LocalDensity
 import androidx.compose.ui.unit.Density
 import androidx.compose.ui.unit.Dp
+import androidx.compose.ui.unit.IntOffset
 import androidx.compose.ui.unit.IntSize
 
 /**
@@ -41,7 +42,8 @@
  * UI code.
  *
  * @param state the state of this layout.
- * @param edgeDetector the edge detector used to detect which edge a swipe is started from, if any.
+ * @param swipeSourceDetector the edge detector used to detect which edge a swipe is started from,
+ *   if any.
  * @param transitionInterceptionThreshold used during a scene transition. For the scene to be
  *   intercepted, the progress value must be above the threshold, and below (1 - threshold).
  * @param scenes the configuration of the different scenes of this layout.
@@ -51,14 +53,14 @@
 fun SceneTransitionLayout(
     state: SceneTransitionLayoutState,
     modifier: Modifier = Modifier,
-    edgeDetector: EdgeDetector = DefaultEdgeDetector,
+    swipeSourceDetector: SwipeSourceDetector = DefaultEdgeDetector,
     @FloatRange(from = 0.0, to = 0.5) transitionInterceptionThreshold: Float = 0f,
     scenes: SceneTransitionLayoutScope.() -> Unit,
 ) {
     SceneTransitionLayoutForTesting(
         state,
         modifier,
-        edgeDetector,
+        swipeSourceDetector,
         transitionInterceptionThreshold,
         onLayoutImpl = null,
         scenes,
@@ -79,7 +81,8 @@
  *   This is called when the user commits a transition to a new scene because of a [UserAction], for
  *   instance by triggering back navigation or by swiping to a new scene.
  * @param transitions the definition of the transitions used to animate a change of scene.
- * @param edgeDetector the edge detector used to detect which edge a swipe is started from, if any.
+ * @param swipeSourceDetector the source detector used to detect which source a swipe is started
+ *   from, if any.
  * @param transitionInterceptionThreshold used during a scene transition. For the scene to be
  *   intercepted, the progress value must be above the threshold, and below (1 - threshold).
  * @param scenes the configuration of the different scenes of this layout.
@@ -90,7 +93,7 @@
     onChangeScene: (SceneKey) -> Unit,
     transitions: SceneTransitions,
     modifier: Modifier = Modifier,
-    edgeDetector: EdgeDetector = DefaultEdgeDetector,
+    swipeSourceDetector: SwipeSourceDetector = DefaultEdgeDetector,
     @FloatRange(from = 0.0, to = 0.5) transitionInterceptionThreshold: Float = 0f,
     scenes: SceneTransitionLayoutScope.() -> Unit,
 ) {
@@ -98,7 +101,7 @@
     SceneTransitionLayout(
         state,
         modifier,
-        edgeDetector,
+        swipeSourceDetector,
         transitionInterceptionThreshold,
         scenes,
     )
@@ -338,7 +341,7 @@
 data class Swipe(
     val direction: SwipeDirection,
     val pointerCount: Int = 1,
-    val fromEdge: Edge? = null,
+    val fromSource: SwipeSource? = null,
 ) : UserAction {
     companion object {
         val Left = Swipe(SwipeDirection.Left)
@@ -356,6 +359,33 @@
 }
 
 /**
+ * The source of a Swipe.
+ *
+ * Important: This can be anything that can be returned by any [SwipeSourceDetector], but this must
+ * implement [equals] and [hashCode]. Note that those can be trivially implemented using data
+ * classes.
+ */
+interface SwipeSource {
+    // Require equals() and hashCode() to be implemented.
+    override fun equals(other: Any?): Boolean
+
+    override fun hashCode(): Int
+}
+
+interface SwipeSourceDetector {
+    /**
+     * Return the [SwipeSource] associated to [position] inside a layout of size [layoutSize], given
+     * [density] and [orientation].
+     */
+    fun source(
+        layoutSize: IntSize,
+        position: IntOffset,
+        density: Density,
+        orientation: Orientation,
+    ): SwipeSource?
+}
+
+/**
  * The result of performing a [UserAction].
  *
  * Note: [UserActionResult] is implemented by [SceneKey], and you can also use [withDistance] to
@@ -427,7 +457,7 @@
 internal fun SceneTransitionLayoutForTesting(
     state: SceneTransitionLayoutState,
     modifier: Modifier = Modifier,
-    edgeDetector: EdgeDetector = DefaultEdgeDetector,
+    swipeSourceDetector: SwipeSourceDetector = DefaultEdgeDetector,
     transitionInterceptionThreshold: Float = 0f,
     onLayoutImpl: ((SceneTransitionLayoutImpl) -> Unit)? = null,
     scenes: SceneTransitionLayoutScope.() -> Unit,
@@ -438,7 +468,7 @@
         SceneTransitionLayoutImpl(
                 state = state as BaseSceneTransitionLayoutState,
                 density = density,
-                edgeDetector = edgeDetector,
+                swipeSourceDetector = swipeSourceDetector,
                 transitionInterceptionThreshold = transitionInterceptionThreshold,
                 builder = scenes,
                 coroutineScope = coroutineScope,
@@ -459,7 +489,7 @@
         }
 
         layoutImpl.density = density
-        layoutImpl.edgeDetector = edgeDetector
+        layoutImpl.swipeSourceDetector = swipeSourceDetector
     }
 
     layoutImpl.Content(modifier)
diff --git a/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SceneTransitionLayoutImpl.kt b/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SceneTransitionLayoutImpl.kt
index 982b0e0..8c5a472 100644
--- a/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SceneTransitionLayoutImpl.kt
+++ b/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SceneTransitionLayoutImpl.kt
@@ -47,7 +47,7 @@
 internal class SceneTransitionLayoutImpl(
     internal val state: BaseSceneTransitionLayoutState,
     internal var density: Density,
-    internal var edgeDetector: EdgeDetector,
+    internal var swipeSourceDetector: SwipeSourceDetector,
     internal var transitionInterceptionThreshold: Float,
     builder: SceneTransitionLayoutScope.() -> Unit,
     private val coroutineScope: CoroutineScope,
diff --git a/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/TransitionDsl.kt b/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/TransitionDsl.kt
index dc8505c..a764a527 100644
--- a/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/TransitionDsl.kt
+++ b/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/TransitionDsl.kt
@@ -320,11 +320,3 @@
         anchorHeight: Boolean = true,
     )
 }
-
-/** The edge of a [SceneTransitionLayout]. */
-enum class Edge {
-    Left,
-    Right,
-    Top,
-    Bottom,
-}
diff --git a/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/FixedSizeEdgeDetectorTest.kt b/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/FixedSizeEdgeDetectorTest.kt
index a68282a..cceaf57 100644
--- a/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/FixedSizeEdgeDetectorTest.kt
+++ b/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/FixedSizeEdgeDetectorTest.kt
@@ -35,7 +35,7 @@
     @Test
     fun horizontalEdges() {
         fun horizontalEdge(position: Int): Edge? =
-            detector.edge(
+            detector.source(
                 layoutSize,
                 position = IntOffset(position, 0),
                 density,
@@ -53,7 +53,7 @@
     @Test
     fun verticalEdges() {
         fun verticalEdge(position: Int): Edge? =
-            detector.edge(
+            detector.source(
                 layoutSize,
                 position = IntOffset(0, position),
                 density,
diff --git a/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/SceneGestureHandlerTest.kt b/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/SceneGestureHandlerTest.kt
index 066a3e4..4b3b369 100644
--- a/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/SceneGestureHandlerTest.kt
+++ b/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/SceneGestureHandlerTest.kt
@@ -77,7 +77,7 @@
                 userActions =
                     mapOf(
                         Swipe.Up to SceneB,
-                        Swipe(SwipeDirection.Up, fromEdge = Edge.Bottom) to SceneA
+                        Swipe(SwipeDirection.Up, fromSource = Edge.Bottom) to SceneA
                     ),
             ) {
                 Text("SceneC")
@@ -90,7 +90,7 @@
             SceneTransitionLayoutImpl(
                     state = layoutState,
                     density = Density(1f),
-                    edgeDetector = DefaultEdgeDetector,
+                    swipeSourceDetector = DefaultEdgeDetector,
                     transitionInterceptionThreshold = transitionInterceptionThreshold,
                     builder = scenesBuilder,
                     coroutineScope = coroutineScope,
diff --git a/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/SwipeToSceneTest.kt b/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/SwipeToSceneTest.kt
index 4571d8e..9403358 100644
--- a/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/SwipeToSceneTest.kt
+++ b/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/SwipeToSceneTest.kt
@@ -90,8 +90,8 @@
                     mapOf(
                         Swipe.Down to TestScenes.SceneA,
                         Swipe(SwipeDirection.Down, pointerCount = 2) to TestScenes.SceneB,
-                        Swipe(SwipeDirection.Right, fromEdge = Edge.Left) to TestScenes.SceneB,
-                        Swipe(SwipeDirection.Down, fromEdge = Edge.Top) to TestScenes.SceneB,
+                        Swipe(SwipeDirection.Right, fromSource = Edge.Left) to TestScenes.SceneB,
+                        Swipe(SwipeDirection.Down, fromSource = Edge.Top) to TestScenes.SceneB,
                     ),
             ) {
                 Box(Modifier.fillMaxSize())