Tune fold animation on top of apps

On top of apps, the fold animation is triggered only after a threshold. On Launcher, there is not threshold.

In this way, we don't show fold animation while apps might be handling table top/half_folded state.

+ timeout to finish the animation made shorter

Test: atest DeviceFoldStateProviderTest
Bug: 225185239
Change-Id: Idaed140cec723ab54ed8c75aaf4a8e80261dc0eb

4 files changed, 78 insertions, 3 deletions

diff --git a/packages/SystemUI/shared/src/com/android/systemui/unfold/UnfoldSharedComponent.kt b/packages/SystemUI/shared/src/com/android/systemui/unfold/UnfoldSharedComponent.kt
index 15593ea5f0e4..9e5aeb84b624 100644
--- a/packages/SystemUI/shared/src/com/android/systemui/unfold/UnfoldSharedComponent.kt
+++ b/packages/SystemUI/shared/src/com/android/systemui/unfold/UnfoldSharedComponent.kt
@@ -16,6 +16,7 @@
 
 package com.android.systemui.unfold
 
+import android.app.ActivityManager
 import android.content.ContentResolver
 import android.content.Context
 import android.hardware.SensorManager
@@ -51,6 +52,7 @@ internal interface UnfoldSharedComponent {
             @BindsInstance config: UnfoldTransitionConfig,
             @BindsInstance screenStatusProvider: ScreenStatusProvider,
             @BindsInstance deviceStateManager: DeviceStateManager,
+            @BindsInstance activityManager: ActivityManager,
             @BindsInstance sensorManager: SensorManager,
             @BindsInstance @Main handler: Handler,
             @BindsInstance @Main executor: Executor,
diff --git a/packages/SystemUI/shared/src/com/android/systemui/unfold/UnfoldTransitionFactory.kt b/packages/SystemUI/shared/src/com/android/systemui/unfold/UnfoldTransitionFactory.kt
index 8e4ff9bc9133..cc56007c431a 100644
--- a/packages/SystemUI/shared/src/com/android/systemui/unfold/UnfoldTransitionFactory.kt
+++ b/packages/SystemUI/shared/src/com/android/systemui/unfold/UnfoldTransitionFactory.kt
@@ -17,6 +17,7 @@
 
 package com.android.systemui.unfold
 
+import android.app.ActivityManager
 import android.content.Context
 import android.hardware.SensorManager
 import android.hardware.devicestate.DeviceStateManager
@@ -39,6 +40,7 @@ fun createUnfoldTransitionProgressProvider(
     config: UnfoldTransitionConfig,
     screenStatusProvider: ScreenStatusProvider,
     deviceStateManager: DeviceStateManager,
+    activityManager: ActivityManager,
     sensorManager: SensorManager,
     mainHandler: Handler,
     mainExecutor: Executor,
@@ -51,6 +53,7 @@ fun createUnfoldTransitionProgressProvider(
             config,
             screenStatusProvider,
             deviceStateManager,
+            activityManager,
             sensorManager,
             mainHandler,
             mainExecutor,
diff --git a/packages/SystemUI/shared/src/com/android/systemui/unfold/updates/DeviceFoldStateProvider.kt b/packages/SystemUI/shared/src/com/android/systemui/unfold/updates/DeviceFoldStateProvider.kt
index 24ecf8781a18..eb1181d98bec 100644
--- a/packages/SystemUI/shared/src/com/android/systemui/unfold/updates/DeviceFoldStateProvider.kt
+++ b/packages/SystemUI/shared/src/com/android/systemui/unfold/updates/DeviceFoldStateProvider.kt
@@ -16,6 +16,8 @@
 package com.android.systemui.unfold.updates
 
 import android.annotation.FloatRange
+import android.app.ActivityManager
+import android.app.WindowConfiguration.ACTIVITY_TYPE_HOME
 import android.content.Context
 import android.hardware.devicestate.DeviceStateManager
 import android.os.Handler
@@ -39,6 +41,7 @@ constructor(
     private val hingeAngleProvider: HingeAngleProvider,
     private val screenStatusProvider: ScreenStatusProvider,
     private val deviceStateManager: DeviceStateManager,
+    private val activityManager: ActivityManager,
     @Main private val mainExecutor: Executor,
     @Main private val handler: Handler
 ) : FoldStateProvider {
@@ -92,10 +95,12 @@ constructor(
         }
 
         val isClosing = angle < lastHingeAngle
+        val closingThreshold = getClosingThreshold()
+        val closingThresholdMet = closingThreshold == null || angle < closingThreshold
         val isFullyOpened = FULLY_OPEN_DEGREES - angle < FULLY_OPEN_THRESHOLD_DEGREES
         val closingEventDispatched = lastFoldUpdate == FOLD_UPDATE_START_CLOSING
 
-        if (isClosing && !closingEventDispatched && !isFullyOpened) {
+        if (isClosing && closingThresholdMet && !closingEventDispatched && !isFullyOpened) {
             notifyFoldUpdate(FOLD_UPDATE_START_CLOSING)
         }
 
@@ -113,6 +118,33 @@ constructor(
         outputListeners.forEach { it.onHingeAngleUpdate(angle) }
     }
 
+    /**
+     * Fold animation should be started only after the threshold returned here.
+     *
+     * This has been introduced because the fold animation might be distracting/unwanted on top of
+     * apps that support table-top/HALF_FOLDED mode. Only for launcher, there is no threshold.
+     */
+    private fun getClosingThreshold(): Int? {
+        val activityType =
+            activityManager
+                .getRunningTasks(/* maxNum= */ 1)
+                ?.getOrNull(0)
+                ?.configuration
+                ?.windowConfiguration
+                ?.activityType
+                ?: return null
+
+        if (DEBUG) {
+            Log.d(TAG, "activityType=" + activityType)
+        }
+
+        return if (activityType == ACTIVITY_TYPE_HOME) {
+            null
+        } else {
+            START_CLOSING_ON_APPS_THRESHOLD_DEGREES
+        }
+    }
+
     private inner class FoldStateListener(context: Context) :
         DeviceStateManager.FoldStateListener(
             context,
@@ -199,7 +231,10 @@ private const val DEBUG = false
  * Time after which [FOLD_UPDATE_FINISH_HALF_OPEN] is emitted following a
  * [FOLD_UPDATE_START_CLOSING] or [FOLD_UPDATE_START_OPENING] event, if an end state is not reached.
  */
-@VisibleForTesting const val HALF_OPENED_TIMEOUT_MILLIS = 1000L
+@VisibleForTesting const val HALF_OPENED_TIMEOUT_MILLIS = 600L
 
 /** Threshold after which we consider the device fully unfolded. */
 @VisibleForTesting const val FULLY_OPEN_THRESHOLD_DEGREES = 15f
+
+/** Fold animation on top of apps only when the angle exceeds this threshold. */
+@VisibleForTesting const val START_CLOSING_ON_APPS_THRESHOLD_DEGREES = 60
diff --git a/packages/SystemUI/tests/src/com/android/systemui/unfold/updates/DeviceFoldStateProviderTest.kt b/packages/SystemUI/tests/src/com/android/systemui/unfold/updates/DeviceFoldStateProviderTest.kt
index f43dc6c5bc83..7ac243452222 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/unfold/updates/DeviceFoldStateProviderTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/unfold/updates/DeviceFoldStateProviderTest.kt
@@ -16,6 +16,11 @@
 
 package com.android.systemui.unfold.updates
 
+import android.app.ActivityManager
+import android.app.ActivityManager.RunningTaskInfo
+import android.app.WindowConfiguration.ACTIVITY_TYPE_HOME
+import android.app.WindowConfiguration.ACTIVITY_TYPE_STANDARD
+import android.app.WindowConfiguration.ActivityType
 import android.hardware.devicestate.DeviceStateManager
 import android.hardware.devicestate.DeviceStateManager.FoldStateListener
 import android.os.Handler
@@ -30,7 +35,6 @@ import com.android.systemui.unfold.util.FoldableDeviceStates
 import com.android.systemui.unfold.util.FoldableTestUtils
 import com.android.systemui.util.mockito.any
 import com.google.common.truth.Truth.assertThat
-import java.lang.Exception
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
@@ -51,6 +55,8 @@ class DeviceFoldStateProviderTest : SysuiTestCase() {
 
     @Mock private lateinit var deviceStateManager: DeviceStateManager
 
+    @Mock private lateinit var activityManager: ActivityManager
+
     @Mock private lateinit var handler: Handler
 
     @Captor private lateinit var foldStateListenerCaptor: ArgumentCaptor<FoldStateListener>
@@ -80,6 +86,7 @@ class DeviceFoldStateProviderTest : SysuiTestCase() {
                 hingeAngleProvider,
                 screenStatusProvider,
                 deviceStateManager,
+                activityManager,
                 context.mainExecutor,
                 handler)
 
@@ -113,6 +120,9 @@ class DeviceFoldStateProviderTest : SysuiTestCase() {
             }
             null
         }
+
+        // By default, we're on launcher.
+        setupForegroundActivityType(ACTIVITY_TYPE_HOME)
     }
 
     @Test
@@ -258,6 +268,31 @@ class DeviceFoldStateProviderTest : SysuiTestCase() {
         }
     }
 
+    @Test
+    fun startClosingEvent_whileNotOnLauncher_doesNotTriggerBeforeThreshold() {
+        setupForegroundActivityType(ACTIVITY_TYPE_STANDARD)
+        sendHingeAngleEvent(180)
+
+        sendHingeAngleEvent(START_CLOSING_ON_APPS_THRESHOLD_DEGREES + 1)
+
+        assertThat(foldUpdates).isEmpty()
+    }
+
+    @Test
+    fun startClosingEvent_whileNotOnLauncher_triggersAfterThreshold() {
+        setupForegroundActivityType(ACTIVITY_TYPE_STANDARD)
+        sendHingeAngleEvent(START_CLOSING_ON_APPS_THRESHOLD_DEGREES)
+
+        sendHingeAngleEvent(START_CLOSING_ON_APPS_THRESHOLD_DEGREES - 1)
+
+        assertThat(foldUpdates).containsExactly(FOLD_UPDATE_START_CLOSING)
+    }
+
+    private fun setupForegroundActivityType(@ActivityType type: Int) {
+        val taskInfo = RunningTaskInfo().apply { topActivityType = type }
+        whenever(activityManager.getRunningTasks(1)).thenReturn(listOf(taskInfo))
+    }
+
     private fun simulateTimeout(waitTime: Long = HALF_OPENED_TIMEOUT_MILLIS) {
         val runnableDelay = scheduledRunnableDelay ?: throw Exception("No runnable scheduled.")
         if (waitTime >= runnableDelay) {