Intercept clicks for non-supported split targets on workspace

* If we're in split selection state we disable the following
- G icon on PSB
- Lens icon on PSB
- Smartspace
- Widgets

Bug: 295467097
Test: Enter split contextual and observe split instructions
view going boing when tapping on unsupported target
Flag: com.android.wm.shell.enable_split_contextual

Change-Id: Ia7783472f3de9359c2784788be5f35596cbc8deb

quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java

@@ -36,6 +36,7 @@ import static com.android.launcher3.LauncherState.OVERVIEW;
 import static com.android.launcher3.LauncherState.OVERVIEW_MODAL_TASK;
 import static com.android.launcher3.LauncherState.OVERVIEW_SPLIT_SELECT;
 import static com.android.launcher3.compat.AccessibilityManagerCompat.sendCustomAccessibilityEvent;
+import static com.android.launcher3.config.FeatureFlags.enableSplitContextually;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_APP_LAUNCH_TAP;
 import static com.android.launcher3.model.data.ItemInfo.NO_MATCHING_ID;
 import static com.android.launcher3.popup.QuickstepSystemShortcut.getSplitSelectShortcutByPosition;
@@ -676,7 +677,7 @@ public class QuickstepLauncher extends Launcher {
                     splitSelectSource.alreadyRunningTaskId = taskWasFound
                             ? foundTask.key.id
                             : INVALID_TASK_ID;
-                    if (FeatureFlags.enableSplitContextually()) {
+                    if (enableSplitContextually()) {
                         startSplitToHome(splitSelectSource);
                     } else {
                         recentsView.initiateSplitSelect(splitSelectSource);
@@ -761,7 +762,7 @@ public class QuickstepLauncher extends Launcher {
 
         super.onPause();
 
-        if (FeatureFlags.enableSplitContextually()) {
+        if (enableSplitContextually()) {
             // If Launcher pauses before both split apps are selected, exit split screen.
             if (!mSplitSelectStateController.isBothSplitAppsConfirmed() &&
                     !mSplitSelectStateController.isLaunchingFirstAppFullscreen()) {
@@ -1352,6 +1353,15 @@ public class QuickstepLauncher extends Launcher {
         return (mTaskbarUIController != null && mTaskbarUIController.hasBubbles());
     }
 
+    @Override
+    public boolean handleIncorrectSplitTargetSelection() {
+        if (enableSplitContextually() && !mSplitSelectStateController.isSplitSelectActive()) {
+            return false;
+        }
+        mSplitSelectStateController.getSplitInstructionsView().goBoing();
+        return true;
+    }
+
     private static final class LauncherTaskViewController extends
             TaskViewTouchController<Launcher> {