 nowrap>source</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Handles a drop by connecting the given vertex to the given source cell.</p><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>vertex</td><td class=CDLDescription><a href="../model/mxCell-js.html#mxCell" class=LClass id=link71 onMouseOver="ShowTip(event, 'tt31', 'link71')" onMouseOut="HideTip('tt31')">mxCell</a> to be inserted.</td></tr><tr><td class=