@@ -0,0 +1,539 @@
+package seedu.address.commons.events.ui;%0A%0Aimport seedu.address.commons.events.BaseEvent;%0A%0A/**%0A * An event requesting to scroll up or down%0A */%0Apublic class ScrollingEvent extends BaseEvent %7B%0A%0A    public static final String SCROLL_UP = %22scroll-up%22;%0A    public static final String SCROLL_DOWN = %22scroll-down%22;%0A%0A    public final String scrollType;%0A%0A    public ScrollingEvent(String scrollType) %7B%0A        this.scrollType = scrollType;%0A    %7D%0A%0A    @Override%0A    public String toString() %7B%0A        return this.getClass().getSimpleName();%0A    %7D%0A%0A%7D%0A

Add scrolling even