Log app launches via taskbar drag and drop

- This also goes through the app predictions pipeline to update
  hotseat predictions

Fixes: 316940471
Test: Drag apps to split screen, ensure taskbar predictions update
      (also verify by logging AppPredictor#notifyAppTargetEvent)
Flag: None
Change-Id: I844414ecb56b4e36a2c94d913c1fb37abf056593
diff --git a/quickstep/src/com/android/launcher3/model/AppEventProducer.java b/quickstep/src/com/android/launcher3/model/AppEventProducer.java
index 0dde1bd..17c39af 100644
--- a/quickstep/src/com/android/launcher3/model/AppEventProducer.java
+++ b/quickstep/src/com/android/launcher3/model/AppEventProducer.java
@@ -25,6 +25,7 @@
 import static com.android.launcher3.LauncherSettings.Favorites.CONTAINER_PREDICTION;
 import static com.android.launcher3.LauncherSettings.Favorites.CONTAINER_WIDGETS_PREDICTION;
 import static com.android.launcher3.logger.LauncherAtomExtensions.ExtendedContainers.ContainerCase.DEVICE_SEARCH_RESULT_CONTAINER;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_APP_LAUNCH_DRAGDROP;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_APP_LAUNCH_TAP;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_DISMISS_PREDICTION_UNDO;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_FOLDER_CONVERTED_TO_ICON;
@@ -132,7 +133,8 @@
                 || event == LAUNCHER_TASK_LAUNCH_SWIPE_DOWN
                 || event == LAUNCHER_TASK_LAUNCH_TAP
                 || event == LAUNCHER_QUICKSWITCH_RIGHT
-                || event == LAUNCHER_QUICKSWITCH_LEFT) {
+                || event == LAUNCHER_QUICKSWITCH_LEFT
+                || event == LAUNCHER_APP_LAUNCH_DRAGDROP) {
             sendEvent(atomInfo, ACTION_LAUNCH, CONTAINER_PREDICTION);
         } else if (event == LAUNCHER_ITEM_DROPPED_ON_DONT_SUGGEST) {
             sendEvent(atomInfo, ACTION_DISMISS, CONTAINER_PREDICTION);
@@ -287,6 +289,9 @@
             case SHORTCUTS_CONTAINER: {
                 return "deep-shortcuts";
             }
+            case TASK_BAR_CONTAINER: {
+                return "taskbar";
+            }
             case FOLDER: {
                 FolderContainer fc = ci.getFolder();
                 switch (fc.getParentContainerCase()) {
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarDragController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarDragController.java
index 6ddf9e9..faa67be 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarDragController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarDragController.java
@@ -23,6 +23,7 @@
 import static com.android.launcher3.LauncherSettings.Favorites.ITEM_TYPE_SEARCH_ACTION;
 import static com.android.launcher3.logger.LauncherAtom.ContainerInfo.ContainerCase.EXTENDED_CONTAINERS;
 import static com.android.launcher3.logger.LauncherAtomExtensions.ExtendedContainers.ContainerCase.DEVICE_SEARCH_RESULT_CONTAINER;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_APP_LAUNCH_DRAGDROP;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
@@ -517,6 +518,9 @@
                 // Note, this must be done last to ensure no AutohideSuspendFlags are active, as
                 // that will prevent us from stashing until the timeout.
                 mControllers.taskbarStashController.updateAndAnimateTransientTaskbar(true);
+
+                mActivity.getStatsLogManager().logger().withItemInfo(mDragObject.dragInfo)
+                        .log(LAUNCHER_APP_LAUNCH_DRAGDROP);
             }
         }
     }
diff --git a/src/com/android/launcher3/logging/StatsLogManager.java b/src/com/android/launcher3/logging/StatsLogManager.java
index d8388c2..6651fa0 100644
--- a/src/com/android/launcher3/logging/StatsLogManager.java
+++ b/src/com/android/launcher3/logging/StatsLogManager.java
@@ -117,6 +117,9 @@
         @UiEvent(doc = "Task launched from overview using SWIPE DOWN")
         LAUNCHER_TASK_LAUNCH_SWIPE_DOWN(340),
 
+        @UiEvent(doc = "App launched by dragging and dropping, probably from taskbar")
+        LAUNCHER_APP_LAUNCH_DRAGDROP(1552),
+
         @UiEvent(doc = "TASK dismissed from overview using SWIPE UP")
         LAUNCHER_TASK_DISMISS_SWIPE_UP(341),