Revert^2 "PriorityNestedScrollConnection: make onStop suspendable and add onCancel"
This reverts commit 47f6e9098792045be9f663aed9fd23e1b6418b13.
Reason for revert: A fix will be applied on top of this revert
Change-Id: Ia313f5f30193ea5ac3c147302488ed45c68131f2
diff --git a/packages/SystemUI/compose/features/src/com/android/systemui/notifications/ui/composable/NotificationScrimNestedScrollConnection.kt b/packages/SystemUI/compose/features/src/com/android/systemui/notifications/ui/composable/NotificationScrimNestedScrollConnection.kt
index 779934d..e4c60e1 100644
--- a/packages/SystemUI/compose/features/src/com/android/systemui/notifications/ui/composable/NotificationScrimNestedScrollConnection.kt
+++ b/packages/SystemUI/compose/features/src/com/android/systemui/notifications/ui/composable/NotificationScrimNestedScrollConnection.kt
@@ -73,13 +73,19 @@
snapScrimOffset(currentHeight + amountConsumed)
amountConsumed
},
- // Don't consume the velocity on pre/post fling
onStop = { velocityAvailable ->
onStop(velocityAvailable)
if (scrimOffset() < minScrimOffset()) {
animateScrimOffset(minScrimOffset())
}
- { 0f }
+ // Don't consume the velocity on pre/post fling
+ 0f
+ },
+ onCancel = {
+ onStop(0f)
+ if (scrimOffset() < minScrimOffset()) {
+ animateScrimOffset(minScrimOffset())
+ }
},
)
}
diff --git a/packages/SystemUI/compose/features/src/com/android/systemui/notifications/ui/composable/NotificationStackNestedScrollConnection.kt b/packages/SystemUI/compose/features/src/com/android/systemui/notifications/ui/composable/NotificationStackNestedScrollConnection.kt
index 42dd1be..edb05eb 100644
--- a/packages/SystemUI/compose/features/src/com/android/systemui/notifications/ui/composable/NotificationStackNestedScrollConnection.kt
+++ b/packages/SystemUI/compose/features/src/com/android/systemui/notifications/ui/composable/NotificationStackNestedScrollConnection.kt
@@ -104,7 +104,8 @@
},
onStop = { velocityAvailable ->
onStop(velocityAvailable)
- suspend { velocityAvailable }
+ velocityAvailable
},
+ onCancel = { onStop(0f) },
)
}
diff --git a/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/DraggableHandler.kt b/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/DraggableHandler.kt
index 638a719..f0742df4 100644
--- a/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/DraggableHandler.kt
+++ b/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/DraggableHandler.kt
@@ -27,9 +27,10 @@
import com.android.compose.animation.scene.content.state.TransitionState
import com.android.compose.animation.scene.content.state.TransitionState.HasOverscrollProperties.Companion.DistanceUnspecified
import com.android.compose.nestedscroll.PriorityNestedScrollConnection
-import com.android.compose.nestedscroll.SuspendedValue
import kotlin.math.absoluteValue
+internal typealias SuspendedValue<T> = suspend () -> T
+
internal interface DraggableHandler {
/**
* Start a drag in the given [startedPosition], with the given [overSlop] and number of
@@ -737,10 +738,18 @@
},
onStop = { velocityAvailable ->
val controller = dragController ?: error("Should be called after onStart")
-
- controller
- .onStop(velocity = velocityAvailable, canChangeContent = canChangeScene)
- .also { dragController = null }
+ try {
+ controller
+ .onStop(velocity = velocityAvailable, canChangeContent = canChangeScene)
+ .invoke()
+ } finally {
+ dragController = null
+ }
+ },
+ onCancel = {
+ val controller = dragController ?: error("Should be called after onStart")
+ controller.onStop(velocity = 0f, canChangeContent = canChangeScene)
+ dragController = null
},
)
}
diff --git a/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SwipeAnimation.kt b/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SwipeAnimation.kt
index 205267d..f0043e1 100644
--- a/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SwipeAnimation.kt
+++ b/packages/SystemUI/compose/scene/src/com/android/compose/animation/scene/SwipeAnimation.kt
@@ -27,7 +27,6 @@
import androidx.compose.ui.unit.IntSize
import com.android.compose.animation.scene.content.state.TransitionState
import com.android.compose.animation.scene.content.state.TransitionState.HasOverscrollProperties.Companion.DistanceUnspecified
-import com.android.compose.nestedscroll.SuspendedValue
import kotlin.math.absoluteValue
import kotlinx.coroutines.CompletableDeferred
diff --git a/packages/SystemUI/compose/scene/src/com/android/compose/nestedscroll/LargeTopAppBarNestedScrollConnection.kt b/packages/SystemUI/compose/scene/src/com/android/compose/nestedscroll/LargeTopAppBarNestedScrollConnection.kt
index b05f022..ecf64b7 100644
--- a/packages/SystemUI/compose/scene/src/com/android/compose/nestedscroll/LargeTopAppBarNestedScrollConnection.kt
+++ b/packages/SystemUI/compose/scene/src/com/android/compose/nestedscroll/LargeTopAppBarNestedScrollConnection.kt
@@ -70,6 +70,7 @@
amountConsumed
},
// Don't consume the velocity on pre/post fling
- onStop = { { 0f } },
+ onStop = { 0f },
+ onCancel = { /* do nothing */ },
)
}
diff --git a/packages/SystemUI/compose/scene/src/com/android/compose/nestedscroll/PriorityNestedScrollConnection.kt b/packages/SystemUI/compose/scene/src/com/android/compose/nestedscroll/PriorityNestedScrollConnection.kt
index f5f566f..57d236b 100644
--- a/packages/SystemUI/compose/scene/src/com/android/compose/nestedscroll/PriorityNestedScrollConnection.kt
+++ b/packages/SystemUI/compose/scene/src/com/android/compose/nestedscroll/PriorityNestedScrollConnection.kt
@@ -16,15 +16,21 @@
package com.android.compose.nestedscroll
+import androidx.compose.animation.core.AnimationState
+import androidx.compose.animation.core.DecayAnimationSpec
+import androidx.compose.animation.core.animateDecay
import androidx.compose.foundation.gestures.Orientation
import androidx.compose.ui.geometry.Offset
import androidx.compose.ui.input.nestedscroll.NestedScrollConnection
import androidx.compose.ui.input.nestedscroll.NestedScrollSource
import androidx.compose.ui.unit.Velocity
import com.android.compose.ui.util.SpaceVectorConverter
+import kotlin.math.abs
import kotlin.math.sign
-
-internal typealias SuspendedValue<T> = suspend () -> T
+import kotlinx.coroutines.CompletableDeferred
+import kotlinx.coroutines.Deferred
+import kotlinx.coroutines.async
+import kotlinx.coroutines.coroutineScope
/**
* A [NestedScrollConnection] that intercepts scroll events in priority mode.
@@ -49,6 +55,7 @@
* consumed amount.
* @param onStop lambda that is called when the connection stops consuming scroll events and returns
* the consumed velocity.
+ * @param onCancel lambda that is called when the connection is cancelled.
* @sample LargeTopAppBarNestedScrollConnection
* @sample com.android.compose.animation.scene.NestedScrollHandlerImpl.nestedScrollConnection
*/
@@ -65,7 +72,8 @@
private val canStopOnPreFling: () -> Boolean,
private val onStart: (offsetAvailable: Float) -> Unit,
private val onScroll: (offsetAvailable: Float, source: NestedScrollSource) -> Float,
- private val onStop: (velocityAvailable: Float) -> SuspendedValue<Float>,
+ private val onStop: suspend (velocityAvailable: Float) -> Float,
+ private val onCancel: () -> Unit,
) : NestedScrollConnection, SpaceVectorConverter by SpaceVectorConverter(orientation) {
/** In priority mode [onPreScroll] events are first consumed by the parent, via [onScroll]. */
@@ -73,6 +81,9 @@
private var offsetScrolledBeforePriorityMode = 0f
+ /** This job allows us to interrupt the onStop animation */
+ private var onStopJob: Deferred<Float> = CompletableDeferred(0f)
+
override fun onPostScroll(
consumed: Offset,
available: Offset,
@@ -153,7 +164,7 @@
*/
fun reset() {
if (isPriorityMode) {
- // Step 3c: To ensure that an onStop is always called for every onStart.
+ // Step 3c: To ensure that an onStop (or onCancel) is always called for every onStart.
cancel()
} else {
resetOffsetTracker()
@@ -173,6 +184,8 @@
// available offset following a scroll event.
isPriorityMode = true
+ onStopJob.cancel()
+
// Note: onStop will be called if we cannot continue to scroll (step 3a), or the finger is
// lifted (step 3b), or this object has been destroyed (step 3c).
onStart(availableOffset)
@@ -205,13 +218,17 @@
check(isPriorityMode) { "This should never happen, stop() was called before start()" }
isPriorityMode = false
resetOffsetTracker()
- return onStop(velocityAvailable).invoke()
+
+ return coroutineScope {
+ onStopJob = async { onStop(velocityAvailable) }
+ onStopJob.await()
+ }
}
private fun cancel() {
check(isPriorityMode) { "This should never happen, cancel() was called before start()" }
isPriorityMode = false
resetOffsetTracker()
- onStop(0f)
+ onCancel()
}
}
diff --git a/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/DraggableHandlerTest.kt b/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/DraggableHandlerTest.kt
index bfb7736..72a71dd 100644
--- a/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/DraggableHandlerTest.kt
+++ b/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/DraggableHandlerTest.kt
@@ -39,7 +39,6 @@
import com.android.compose.animation.scene.content.state.TransitionState
import com.android.compose.animation.scene.content.state.TransitionState.Transition
import com.android.compose.animation.scene.subjects.assertThat
-import com.android.compose.nestedscroll.SuspendedValue
import com.android.compose.test.MonotonicClockTestScope
import com.android.compose.test.runMonotonicClockTest
import com.android.compose.test.transition
diff --git a/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/MultiPointerDraggableTest.kt b/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/MultiPointerDraggableTest.kt
index c8f6e6d..3df6087 100644
--- a/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/MultiPointerDraggableTest.kt
+++ b/packages/SystemUI/compose/scene/tests/src/com/android/compose/animation/scene/MultiPointerDraggableTest.kt
@@ -46,7 +46,6 @@
import androidx.compose.ui.unit.Velocity
import androidx.test.ext.junit.runners.AndroidJUnit4
import com.android.compose.modifiers.thenIf
-import com.android.compose.nestedscroll.SuspendedValue
import com.google.common.truth.Truth.assertThat
import kotlin.properties.Delegates
import kotlinx.coroutines.coroutineScope
diff --git a/packages/SystemUI/compose/scene/tests/src/com/android/compose/nestedscroll/PriorityNestedScrollConnectionTest.kt b/packages/SystemUI/compose/scene/tests/src/com/android/compose/nestedscroll/PriorityNestedScrollConnectionTest.kt
index 9363ecb..1a3b86b 100644
--- a/packages/SystemUI/compose/scene/tests/src/com/android/compose/nestedscroll/PriorityNestedScrollConnectionTest.kt
+++ b/packages/SystemUI/compose/scene/tests/src/com/android/compose/nestedscroll/PriorityNestedScrollConnectionTest.kt
@@ -39,6 +39,7 @@
private var lastScroll: Float? = null
private var consumeScroll = true
private var lastStop: Float? = null
+ private var isCancelled: Boolean = false
private var consumeStop = true
private val scrollConnection =
@@ -55,8 +56,9 @@
},
onStop = {
lastStop = it
- { if (consumeStop) it else 0f }
+ if (consumeStop) it else 0f
},
+ onCancel = { isCancelled = true },
)
@Test
@@ -147,13 +149,13 @@
}
@Test
- fun step3a_onPriorityMode_shouldStopIfCannotContinue() {
+ fun step3a_onPriorityMode_shouldCancelIfCannotContinue() {
startPriorityModePostScroll()
consumeScroll = false
- scrollConnection.onPreScroll(available = Offset.Zero, source = UserInput)
+ scrollConnection.onPreScroll(available = Offset(0f, 1f), source = UserInput)
- assertThat(lastStop).isNotNull()
+ assertThat(isCancelled).isTrue()
}
@Test
@@ -178,12 +180,12 @@
}
@Test
- fun step3c_onPriorityMode_shouldStopOnReset() {
+ fun step3c_onPriorityMode_shouldCancelOnReset() {
startPriorityModePostScroll()
scrollConnection.reset()
- assertThat(lastStop).isNotNull()
+ assertThat(isCancelled).isTrue()
}
@Test