Quick step/scrub/switch logging
- state transition happening due to Home and back is handled by
  specifying src target as 'from' container and dst target as the 'to'
  container
- Source and Destination container shows FROM and TO state for SWIPE/FLING
- event.isStateChange = true indicates that an action resulted in
  state transition
- Elapsed container millis is the screen time on the source container

Bug: 70181187

- logcat printout with setprop log.tag.UserEvent VERBOSE
1) State: WORKSPACE -> ALLAPPS
  action:FLING direction=UP
  Source child:HOTSEAT id=0	parent:WORKSPACE id=0
  Destination child:ALLAPPS
  Elapsed container 1225 ms, session 1225 ms, action 0 ms

2) ALLAPPS -> HOMESCREEN
  action:FLING direction=DOWN
  Source child:ALLAPPS	parent:ALLAPPS
  Destination child:WORKSPACE id=0
  Elapsed container 971 ms, session 2197 ms, action 0 ms

3) HOMESCREEN -> OVERVIEW
  action:FLING direction=UP
  Source child:NAVBAR	parent:WORKSPACE id=0
  Destination child:TASKSWITCHER
  Elapsed container 4834 ms, session 4834 ms, action 0 ms

4) OVERVIEW-> ALLAPPS
  action:FLING direction=UP
  Source child:TASK	parent:TASKSWITCHER
  Destination child:ALLAPPS
  Elapsed container 2176 ms, session 7010 ms, action 0 ms

5) ALLAPPS->OVERVIEW
  action:FLING direction=DOWN
  Source child:ALLAPPS	parent:ALLAPPS
  Destination child:TASKSWITCHER
  Elapsed container 3683 ms, session 10693 ms, action 0 ms

6) OVERVIEW-> HOMESCREEN
  action:FLING direction=DOWN
  Source child:TASK	parent:TASKSWITCHER
  Destination child:WORKSPACE id=0
  Elapsed container 2108 ms, session 12801 ms, action 0 ms

7) APPS-> OVERVIEW
  action:FLING direction=UP
  Source child:NAVBAR	parent:APP
  Destination child:TASKSWITCHER
  Elapsed container 104 ms, session 104 ms, action 0 ms

8) Quickscrub: action:DRAGANDDROP Source child: QUICK

9) Quickswitch: action:FLING Source child: QUICK

Change-Id: I5898230859ff600f48a2a873a40b670fe4d39a0d
diff --git a/protos/launcher_log.proto b/protos/launcher_log.proto
index de74fce..3b983d2 100644
--- a/protos/launcher_log.proto
+++ b/protos/launcher_log.proto
@@ -68,6 +68,7 @@
   SEARCHBOX = 6;
   EDITTEXT = 7;
   NOTIFICATION = 8;
+  TASK = 9;         // Each page of Recents UI (QuickStep)
 }
 
 // Used to define what type of container a Target would represent.
@@ -78,11 +79,14 @@
   FOLDER = 3;
   ALLAPPS = 4;
   WIDGETS = 5;
-  OVERVIEW = 6;
+  OVERVIEW = 6;   // Zoomed out workspace (without QuickStep)
   PREDICTION = 7;
   SEARCHRESULT = 8;
   DEEPSHORTCUTS = 9;
   PINITEM = 10;    // confirmation screen
+  NAVBAR = 11;
+  TASKSWITCHER = 12; // Recents UI Container (QuickStep)
+  APP = 13; // Foreground activity is another app (QuickStep)
 }
 
 // Used to define what type of control a Target would represent.
@@ -100,6 +104,7 @@
   HOME_INTENT = 10; // Deprecated, use enum Command instead
   BACK_BUTTON = 11; // Deprecated, use enum Command instead
   // GO_TO_PLAYSTORE
+  QUICK_SCRUB_BUTTON = 12;
 }
 
 // Used to define the action component of the LauncherEvent.
@@ -141,6 +146,7 @@
   optional Command command = 4;
   // Log if the action was performed on outside of the container
   optional bool is_outside = 5;
+  optional bool is_state_change = 6;
 }
 
 //
@@ -150,7 +156,6 @@
 //
 message LauncherEvent {
   required Action action = 1;
-
   // List of targets that touch actions can be operated on.
   repeated Target src_target = 2;
   repeated Target dest_target = 3;