Merge "Don't allow multiple shortcuts to be dragged simultaneously." into ub-launcher3-master

    public boolean onLongClick(View v) {

        // Return early if this is not initiated from a touch or not the correct view

        if (!v.isInTouchMode() || !(v.getParent() instanceof DeepShortcutView)) return false;

        // Return if global dragging is not enabled

        // Return early if global dragging is not enabled

        if (!mLauncher.isDraggingEnabled()) return false;

        // Return early if an item is already being dragged (e.g. when long-pressing two shortcuts)

        if (mLauncher.getDragController().isDragging()) return false;

        // Long clicked on a shortcut.

        mDeferContainerRemoval = true;