Add an unsupported split screen mode

This will allow us to avoid generating split drag zones until the
transition from bubble to split is implemented.

Flag: EXEMPT not wired
Bug: 393172431
Test: atest DragZoneFactoryTest
Change-Id: I5d4c1d07fc7926c01c86272d02acaab2a1410dde

3 files changed, 42 insertions, 4 deletions

diff --git a/libs/WindowManager/Shell/multivalentScreenshotTests/src/com/android/wm/shell/shared/bubbles/DragZoneFactoryScreenshotTest.kt b/libs/WindowManager/Shell/multivalentScreenshotTests/src/com/android/wm/shell/shared/bubbles/DragZoneFactoryScreenshotTest.kt
index 24f43d347163..5777cb0cc8c5 100644
--- a/libs/WindowManager/Shell/multivalentScreenshotTests/src/com/android/wm/shell/shared/bubbles/DragZoneFactoryScreenshotTest.kt
+++ b/libs/WindowManager/Shell/multivalentScreenshotTests/src/com/android/wm/shell/shared/bubbles/DragZoneFactoryScreenshotTest.kt
@@ -94,6 +94,7 @@ class DragZoneFactoryScreenshotTest(private val param: Param) {
 
         private val splitScreenModeName =
             when (splitScreenMode) {
+                SplitScreenMode.UNSUPPORTED -> "_split_unsupported"
                 SplitScreenMode.NONE -> ""
                 SplitScreenMode.SPLIT_50_50 -> "_split_50_50"
                 SplitScreenMode.SPLIT_10_90 -> "_split_10_90"
diff --git a/libs/WindowManager/Shell/shared/src/com/android/wm/shell/shared/bubbles/DragZoneFactory.kt b/libs/WindowManager/Shell/shared/src/com/android/wm/shell/shared/bubbles/DragZoneFactory.kt
index 1a80b0f29aa9..b3cb72e49727 100644
--- a/libs/WindowManager/Shell/shared/src/com/android/wm/shell/shared/bubbles/DragZoneFactory.kt
+++ b/libs/WindowManager/Shell/shared/src/com/android/wm/shell/shared/bubbles/DragZoneFactory.kt
@@ -322,6 +322,7 @@ class DragZoneFactory(
         val isVerticalSplit = deviceConfig.isSmallTablet == deviceConfig.isLandscape
         return if (isVerticalSplit) {
             when (splitScreenModeChecker.getSplitScreenMode()) {
+                SplitScreenMode.UNSUPPORTED -> emptyList()
                 SplitScreenMode.SPLIT_50_50,
                 SplitScreenMode.NONE ->
                     listOf(
@@ -379,6 +380,7 @@ class DragZoneFactory(
             }
         } else {
             when (splitScreenModeChecker.getSplitScreenMode()) {
+                SplitScreenMode.UNSUPPORTED -> emptyList()
                 SplitScreenMode.SPLIT_50_50,
                 SplitScreenMode.NONE ->
                     listOf(
@@ -472,6 +474,7 @@ class DragZoneFactory(
             // vertical split drag zones are aligned with the full screen drag zone width
             val splitZoneLeft = windowBounds.right / 2 - fullScreenDragZoneWidth / 2
             when (splitScreenModeChecker.getSplitScreenMode()) {
+                SplitScreenMode.UNSUPPORTED -> emptyList()
                 SplitScreenMode.SPLIT_50_50,
                 SplitScreenMode.NONE ->
                     listOf(
@@ -579,7 +582,8 @@ class DragZoneFactory(
             NONE,
             SPLIT_50_50,
             SPLIT_10_90,
-            SPLIT_90_10
+            SPLIT_90_10,
+            UNSUPPORTED
         }
 
         fun getSplitScreenMode(): SplitScreenMode
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/shared/bubbles/DragZoneFactoryTest.kt b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/shared/bubbles/DragZoneFactoryTest.kt
index fd22a84dee5d..2b39262d9f00 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/shared/bubbles/DragZoneFactoryTest.kt
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/shared/bubbles/DragZoneFactoryTest.kt
@@ -53,7 +53,8 @@ class DragZoneFactoryTest {
         tabletPortrait.copy(windowBounds = Rect(0, 0, 800, 900), isSmallTablet = true)
     private val foldableLandscape =
         foldablePortrait.copy(windowBounds = Rect(0, 0, 900, 800), isLandscape = true)
-    private val splitScreenModeChecker = SplitScreenModeChecker { SplitScreenMode.NONE }
+    private var splitScreenMode = SplitScreenMode.NONE
+    private val splitScreenModeChecker = SplitScreenModeChecker { splitScreenMode }
     private var isDesktopWindowModeSupported = true
     private val desktopWindowModeChecker = DesktopWindowModeChecker { isDesktopWindowModeSupported }
 
@@ -283,7 +284,7 @@ class DragZoneFactoryTest {
     }
 
     @Test
-    fun dragZonesForBubble_tablet_desktopModeDisabled() {
+    fun dragZonesForBubble_desktopModeDisabled() {
         isDesktopWindowModeSupported = false
         dragZoneFactory =
             DragZoneFactory(
@@ -298,7 +299,7 @@ class DragZoneFactoryTest {
     }
 
     @Test
-    fun dragZonesForExpandedView_tablet_desktopModeDisabled() {
+    fun dragZonesForExpandedView_desktopModeDisabled() {
         isDesktopWindowModeSupported = false
         dragZoneFactory =
             DragZoneFactory(
@@ -314,6 +315,38 @@ class DragZoneFactoryTest {
         assertThat(dragZones.filterIsInstance<DragZone.DesktopWindow>()).isEmpty()
     }
 
+    @Test
+    fun dragZonesForBubble_splitScreenModeUnsupported() {
+        splitScreenMode = SplitScreenMode.UNSUPPORTED
+        dragZoneFactory =
+            DragZoneFactory(
+                context,
+                foldableLandscape,
+                splitScreenModeChecker,
+                desktopWindowModeChecker
+            )
+        val dragZones =
+            dragZoneFactory.createSortedDragZones(DraggedObject.Bubble(BubbleBarLocation.LEFT))
+        assertThat(dragZones.filterIsInstance<DragZone.Split>()).isEmpty()
+    }
+
+    @Test
+    fun dragZonesForExpandedView_splitScreenModeUnsupported() {
+        splitScreenMode = SplitScreenMode.UNSUPPORTED
+        dragZoneFactory =
+            DragZoneFactory(
+                context,
+                foldableLandscape,
+                splitScreenModeChecker,
+                desktopWindowModeChecker
+            )
+        val dragZones =
+            dragZoneFactory.createSortedDragZones(
+                DraggedObject.ExpandedView(BubbleBarLocation.LEFT)
+            )
+        assertThat(dragZones.filterIsInstance<DragZone.Split>()).isEmpty()
+    }
+
     private inline fun <reified T> verifyInstance(): DragZoneVerifier = { dragZone ->
         assertThat(dragZone).isInstanceOf(T::class.java)
     }