User:Yair rand/ReferenceTooltips.js

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This user script seems to have a documentation page at User:Yair rand/ReferenceTooltips and an accompanying .css page at User:Yair rand/ReferenceTooltips.css.

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// See [[mw:Reference Tooltips]]

$(document).ready(function($){

$(".reference").each(function(){
        var tooltipNode, timer;
        function findRef( h ){
                h = h.firstChild.getAttribute("href"); h = h && h.substr(1);
                h = h && document.getElementById( h );
                return h;
        }
        function hide(){
                if( tooltipNode && tooltipNode.parentNode ) {
                        timer = setTimeout( function() {
                                $(tooltipNode).animate({opacity: 0}, 100, function(){ document.body.removeChild( tooltipNode ) })
                        }, 100)
                } else {
                        var h = findRef( this );
                        h && (h.style.border = "");
                }
        }
        function show(){
                if( !tooltipNode.parentNode ){
                        document.body.appendChild( tooltipNode );
                }
                $(tooltipNode).stop().animate({opacity: 1}, 100)
                clearTimeout( timer );
        }
        $(this).hover(function(){
                var h = findRef( this );
                if( !h ){return};
                if( document.body.scrollTop + screen.availHeight > $( h ).offset().top ) {
                        h.style.border = "#080086 2px solid";
                        return;
                }
                if(!tooltipNode){
                        tooltipNode = document.createElement("ul");
                        tooltipNode.className = "referencetooltip";
                        var c = tooltipNode.appendChild( h.cloneNode( true ) );
                        try {
                                if( c.firstChild.nodeName != "A" ) {
                                        while( c.childNodes[1].nodeName == "A" && c.childNodes[1].getAttribute( "href" ).indexOf("#cite_ref-") == 0 ) {
                                                do { c.removeChild( c.childNodes[1] ) } while ( c.childNodes[1].nodeValue == " " );
                                        }
                                }
                        } catch (e) { mw.log(e) }
                        c.removeChild( c.firstChild );
                        tooltipNode.appendChild( document.createElement( "li" ) );
                        $(tooltipNode).hover(show, hide);
                }
                show();
                var o = $(this).offset();
                $(tooltipNode).css({top: o.top - tooltipNode.offsetHeight, left: o.left - 7 });
        }, hide)
        
})

})