Exit split selection state if launcher interrupted

* Launcher gets paused as a natural part of
confirming a split, so only cancel when 1 app is
confirmed

Test: Start split from workspace, then go to
* double tap camera
* settings via notification drawer
* mic icon on QSB
Bug: 276361926

Change-Id: I048964403303defe35035ee24950cfbbfc201afd
diff --git a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
index b50ab97..ae11e04 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
@@ -693,6 +693,14 @@
         }
 
         super.onPause();
+
+        if (ENABLE_SPLIT_FROM_WORKSPACE_TO_WORKSPACE.get()) {
+            // If Launcher pauses before both split apps are selected, exit split screen.
+            if (!mSplitSelectStateController.isBothSplitAppsConfirmed()) {
+                mSplitSelectStateController.getSplitAnimationController()
+                        .playPlaceholderDismissAnim(this);
+            }
+        }
     }
 
     @Override
diff --git a/quickstep/src/com/android/quickstep/util/SplitSelectDataHolder.kt b/quickstep/src/com/android/quickstep/util/SplitSelectDataHolder.kt
index 69c4197..95f1fbf 100644
--- a/quickstep/src/com/android/quickstep/util/SplitSelectDataHolder.kt
+++ b/quickstep/src/com/android/quickstep/util/SplitSelectDataHolder.kt
@@ -368,7 +368,8 @@
     }
 
     private fun isInitialTaskIntentSet(): Boolean {
-        return initialTaskId != INVALID_TASK_ID || initialIntent != null
+        return initialTaskId != INVALID_TASK_ID || initialIntent != null ||
+                initialPendingIntent != null
     }
 
     fun getInitialTaskId(): Int {
@@ -404,6 +405,7 @@
         secondUser = null
         initialIntent = null
         secondIntent = null
+        initialPendingIntent = null
         secondPendingIntent = null
         itemInfo = null
         splitEvent = null
diff --git a/quickstep/tests/src/com/android/quickstep/util/SplitSelectDataHolderTest.kt b/quickstep/tests/src/com/android/quickstep/util/SplitSelectDataHolderTest.kt
index fc767fa..c6c5be4 100644
--- a/quickstep/tests/src/com/android/quickstep/util/SplitSelectDataHolderTest.kt
+++ b/quickstep/tests/src/com/android/quickstep/util/SplitSelectDataHolderTest.kt
@@ -381,7 +381,7 @@
     }
 
     @Test
-    fun clearState() {
+    fun clearState_task() {
         splitSelectDataHolder.setInitialTaskSelect(
             sampleTaskInfo,
             STAGE_POSITION_TOP_OR_LEFT,
@@ -392,4 +392,18 @@
         splitSelectDataHolder.resetState()
         assertFalse(splitSelectDataHolder.isSplitSelectActive())
     }
+
+    @Test
+    fun clearState_intent() {
+        splitSelectDataHolder.setInitialTaskSelect(
+                sampleIntent,
+                STAGE_POSITION_TOP_OR_LEFT,
+                sampleItemInfo,
+                null,
+                INVALID_TASK_ID
+        )
+        splitSelectDataHolder.setSecondTask(sampleIntent, sampleUser)
+        splitSelectDataHolder.resetState()
+        assertFalse(splitSelectDataHolder.isSplitSelectActive())
+    }
 }