Add logging for notifications.

- Log notification launches
- Log notification swipes
- Fix logDragNDrop() to only log if the pre-drag ends (so it doesn't
  log a long-press that only shows shortcuts without dragging).
- Add shortcut rank to logs when launching deep shortcuts, where 0
  is the shortcut closest to the app icon (highest rank).

Bug: 34770729
Bug: 32410600
Change-Id: I99dcef9b6a71da2ef58e32397702bb137407b10f

src/com/android/launcher3/notification/NotificationMainView.java

@@ -20,18 +20,19 @@ import android.animation.Animator;
 import android.animation.AnimatorSet;
 import android.animation.ValueAnimator;
 import android.content.Context;
-import android.support.annotation.Nullable;
 import android.util.AttributeSet;
 import android.view.MotionEvent;
 import android.view.View;
 import android.widget.LinearLayout;
 import android.widget.TextView;
 
+import com.android.launcher3.ItemInfo;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherAnimUtils;
 import com.android.launcher3.LauncherViewPropertyAnimator;
 import com.android.launcher3.R;
 import com.android.launcher3.graphics.IconPalette;
+import com.android.launcher3.userevent.nano.LauncherLogProto;
 
 /**
  * A {@link LinearLayout} that contains a single notification, e.g. icon + title + text.
@@ -89,6 +90,9 @@ public class NotificationMainView extends LinearLayout implements SwipeHelper.Ca
                 getContext(), mIconPalette.backgroundColor));
         setOnClickListener(mNotificationInfo);
         setTranslationX(0);
+        // Add a dummy ItemInfo so that logging populates the correct container and item types
+        // instead of DEFAULT_CONTAINERTYPE and DEFAULT_ITEMTYPE, respectively.
+        setTag(new ItemInfo());
         if (animate) {
             AnimatorSet animation = LauncherAnimUtils.createAnimatorSet();
             Animator textFade = new LauncherViewPropertyAnimator(mTextView).alpha(1);
@@ -135,8 +139,13 @@ public class NotificationMainView extends LinearLayout implements SwipeHelper.Ca
 
     @Override
     public void onChildDismissed(View v) {
-        Launcher.getLauncher(getContext()).getPopupDataProvider().cancelNotification(
+        Launcher launcher = Launcher.getLauncher(getContext());
+        launcher.getPopupDataProvider().cancelNotification(
                 mNotificationInfo.notificationKey);
+        launcher.getUserEventDispatcher().logActionOnItem(
+                LauncherLogProto.Action.Touch.SWIPE,
+                LauncherLogProto.Action.Direction.RIGHT, // Assume all swipes are right for logging.
+                LauncherLogProto.ItemType.NOTIFICATION);
     }
 
     @Override