Capture screenshot when animating to home

This is to ensure the task thumbnail is captured in the correct
orientation, rather than waiting until after the task pauses
which might be after the device rotates to portrait.

Also update the state to wait until screenshot is captured
before finishing the transition to home.

Change-Id: Ie42778d527c382ff80a2edf5d2a5dc7490e4e5ff
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/WindowTransformSwipeHandler.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/WindowTransformSwipeHandler.java
index 404cfe6..537858d 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/WindowTransformSwipeHandler.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/WindowTransformSwipeHandler.java
@@ -170,7 +170,8 @@
             STATE_LAUNCHER_PRESENT | STATE_LAUNCHER_DRAWN | STATE_LAUNCHER_STARTED;
 
     public enum GestureEndTarget {
-        HOME(1, STATE_SCALED_CONTROLLER_HOME, true, false, ContainerType.WORKSPACE, false),
+        HOME(1, STATE_SCALED_CONTROLLER_HOME | STATE_CAPTURE_SCREENSHOT, true, false,
+                ContainerType.WORKSPACE, false),
 
         RECENTS(1, STATE_SCALED_CONTROLLER_RECENTS | STATE_CAPTURE_SCREENSHOT
                 | STATE_SCREENSHOT_VIEW_SHOWN, true, false, ContainerType.TASKSWITCHER, true),
@@ -330,9 +331,8 @@
                         | STATE_SCALED_CONTROLLER_RECENTS,
                 this::finishCurrentTransitionToRecents);
 
-        mStateCallback.addCallback(STATE_LAUNCHER_PRESENT | STATE_GESTURE_COMPLETED
-                        | STATE_SCALED_CONTROLLER_HOME | STATE_APP_CONTROLLER_RECEIVED
-                        | STATE_LAUNCHER_DRAWN,
+        mStateCallback.addCallback(STATE_SCREENSHOT_CAPTURED | STATE_GESTURE_COMPLETED
+                        | STATE_SCALED_CONTROLLER_HOME,
                 this::finishCurrentTransitionToHome);
         mStateCallback.addCallback(STATE_SCALED_CONTROLLER_HOME | STATE_CURRENT_TASK_FINISHED,
                 this::reset);