User:Magnus Manske/HighlightEditSections.js

addOnloadHook ( extendededitlinks ) ;

function extendededitlinks_get_event_target ( e ) { var targ ; if (!e) var e = window.event; if (e.target) targ = e.target; else if (e.srcElement) targ = e.srcElement; if (targ.nodeType == 3) targ = targ.parentNode; // defeat Safari bug while ( targ.nodeType != 1 || targ.className != "editsection" ) targ = targ.parentNode ; return targ ; }

function extendededitlinks_is_relevant_heading ( current, compare ) { if ( current.nodeType != 1 ) return false ; if ( current.tagName.length != 2 ) return false ; if ( current.tagName.substr ( 0, 1 ) != "H" ) return false ; if ( current.tagName> compare.tagName) return false ; return true ; }

function extendededitlinks_onmouseover ( e ) { var target = extendededitlinks_get_event_target ( e ) ;

var h2 = target ; while ( h2.nodeType != 1 || h2.tagName.substr(0,1) != "H" ) h2 = h2.parentNode;

var newdiv = document.createElement ( "div" ) ; newdiv.style.backgroundColor = "#DDDDDD" ; // newdiv.style.border = "1px solid black" ; // newdiv.style.padding = "2px" ;

h2.parentNode.insertBefore ( newdiv, h2 ) ; newdiv = h2.previousSibling ; // Unneccessary?

var x = h2 ; do { var y = x ; x = x.nextSibling ; newdiv.appendChild ( y ) ; } while ( x && !extendededitlinks_is_relevant_heading ( x, h2 ) ) ;

}

function extendededitlinks_onmouseout ( e ) { var target = extendededitlinks_get_event_target ( e ) ;

var h2 = target ; while ( h2.nodeType != 1 || h2.tagName.substr(0,1) != "H" ) h2 = h2.parentNode;

var newdiv = h2 ; while ( newdiv.nodeType != 1 || newdiv.tagName != "DIV" ) newdiv = newdiv.parentNode;

for ( var y = newdiv.firstChild ; y ; y = z ) { z = y.nextSibling ; newdiv.parentNode.insertBefore ( y, newdiv ) ; } newdiv.parentNode.removeChild ( newdiv ) ; }

function extendededitlinks { var spans = document.getElementsByTagName( "span" ); for ( var i = 0 ; i < spans.length ; i++ ) { if ( spans[i].className != "editsection" ) continue ; var a = spans[i].getElementsByTagName("a")[0] ; a.onmouseover = extendededitlinks_onmouseover ; a.onmouseout = extendededitlinks_onmouseout ; } }