Merge "Go back to previous state when hitting back from discovery bounce" into ub-launcher3-edmonton

src/com/android/launcher3/AbstractFloatingView.java

@@ -123,9 +123,11 @@ public abstract class AbstractFloatingView extends LinearLayout implements Touch
 
     protected abstract boolean isOfType(@FloatingViewType int type);
 
-    public void onBackPressed() {
+    /** @return Whether the back is consumed. If false, Launcher will handle the back as well. */
+    public boolean onBackPressed() {
         logActionCommand(Action.Command.BACK);
         close(true);
+        return true;
     }
 
     @Override

src/com/android/launcher3/Launcher.java

@@ -1599,8 +1599,8 @@ public class Launcher extends BaseDraggingActivity
         // by using if-else statements.
         UserEventDispatcher ued = getUserEventDispatcher();
         AbstractFloatingView topView = AbstractFloatingView.getTopOpenView(this);
-        if (topView != null) {
-            topView.onBackPressed();
+        if (topView != null && topView.onBackPressed()) {
+            // Handled by the floating view.
         } else if (!isInState(NORMAL)) {
             LauncherState lastState = mStateManager.getLastState();
             ued.logActionCommand(Action.Command.BACK, mStateManager.getState().containerType,

src/com/android/launcher3/allapps/DiscoveryBounce.java

@@ -83,6 +83,14 @@ public class DiscoveryBounce extends AbstractFloatingView {
         }
     }
 
+    @Override
+    public boolean onBackPressed() {
+        super.onBackPressed();
+        // Go back to the previous state (from a user's perspective this floating view isn't
+        // something to go back from).
+        return false;
+    }
+
     @Override
     public boolean onControllerInterceptTouchEvent(MotionEvent ev) {
         handleClose(false);

src/com/android/launcher3/folder/Folder.java

@@ -1437,12 +1437,13 @@ public class Folder extends AbstractFloatingView implements DragSource,
     }
 
     @Override
-    public void onBackPressed() {
+    public boolean onBackPressed() {
         if (isEditingName()) {
             mFolderName.dispatchBackKey();
         } else {
             super.onBackPressed();
         }
+        return true;
     }
 
     @Override