MediaWiki:Common.js

/** * JS Tab System, jacked and hacked from the jsprefs in wikibits.js * * Original code by Dantman * Refactored a bit by Jack Phoenix on 11 April 2014 * Support for linking to a particular tab by MatmaRex on 30 December 2016. * @note Should be rewritten to properly use jQuery like how mediawiki.special.preferences.js does. */ var TabSystem = { /**	 * @property {boolean} * Is the user's browser a KHTML-based one (usually, but not always, Konqueror)? */	isKHTML: ( navigator.vendor == 'KDE' || ( document.childNodes && !document.all && !navigator.taintEnabled ) ), /**	 * @property {boolean} * Is the user's browser Opera? */	isOpera: navigator.userAgent.toLowerCase.indexOf( 'opera' ) != -1, /*		Written by Jonathan Snook, http://www.snook.ca/jonathan Add-ons by Robert Nyman, http://www.robertnyman.com Author says "The credit comment is all it takes, no license. Go crazy with it!:-)"		From http://www.robertnyman.com/2005/11/07/the-ultimate-getelementsbyclassname/	*/	getElementsByClassName: function( oElm, strTagName, oClassNames ) {		var arrReturnElements = [];		if ( typeof oElm.getElementsByClassName == 'function' ) {			/* Use a native implementation where possible FF3, Saf3.2, Opera 9.5 */			var arrNativeReturn = oElm.getElementsByClassName( oClassNames );			if ( strTagName == '*' ) {				return arrNativeReturn;			}			for ( var h = 0; h < arrNativeReturn.length; h++ ) {				if ( arrNativeReturn[h].tagName.toLowerCase == strTagName.toLowerCase ) {					arrReturnElements[arrReturnElements.length] = arrNativeReturn[h];				}			}			return arrReturnElements;		}		var arrElements = ( strTagName == '*' && oElm.all ) ? oElm.all : oElm.getElementsByTagName( strTagName );		var arrRegExpClassNames = []; if ( typeof oClassNames == 'object' ) { for ( var i = 0; i < oClassNames.length; i++ ) { arrRegExpClassNames[arrRegExpClassNames.length] = new RegExp( "(^|\\s)" + oClassNames[i].replace( /\-/g, "\\-" ) + "(\\s|$)" ); }		} else { arrRegExpClassNames[arrRegExpClassNames.length] = new RegExp( "(^|\\s)" + oClassNames.replace( /\-/g, "\\-" ) + "(\\s|$)" ); }		var oElement; var bMatchesAll; for ( var j = 0; j < arrElements.length; j++ ) { oElement = arrElements[j]; bMatchesAll = true; for ( var k = 0; k < arrRegExpClassNames.length; k++ ) { if ( !arrRegExpClassNames[k].test( oElement.className ) ) { bMatchesAll = false; break; }			}			if ( bMatchesAll ) { arrReturnElements[arrReturnElements.length] = oElement; }		}		return arrReturnElements; },	/**	 * Main function that performs all the magic on all div elements that have * class="tab" and are inside a div that has class="tabcontainer". */	main: function { var tabcontainers = TabSystem.getElementsByClassName( document, 'div', 'tabcontainer' ); for ( var tc = 0; tc < tabcontainers.length; tc++ ) { if ( !tabcontainers[tc] || !document.createElement ) { return; }			if ( tabcontainers[tc].nodeName.toLowerCase == 'a' ) { return; // Occasional IE problem }			tabcontainers[tc].className += ' jstabs'; var sections = []; var children = tabcontainers[tc].childNodes; var seci = 0; for ( var i = 0; i < children.length; i++ ) { if ( children[i].className && children[i].className.match( /tab/i ) ) { children[i].id = 'tabsection-' + seci + '-' + tc; children[i].className += ' tabsection'; // Opera and KHTML-based browsers get a special class if ( TabSystem.isOpera || TabSystem.isKHTML ) { children[i].className += ' tabsection operatabsection'; }					var legends = TabSystem.getElementsByClassName( children[i], 'div', 'tab' ); sections[seci] = {}; legends[0].className = 'mainTab'; if ( legends[0] && legends[0].firstChild.nodeValue ) { sections[seci].text = legends[0].firstChild.nodeValue; } else { sections[seci].text = '# ' + seci; }					sections[seci].secid = children[i].id; seci++; if ( sections.length != 1 ) { children[i].style.display = 'none'; } else { var selectedid = children[i].id; }				}			}			var toc = document.createElement( 'ul' ); toc.className = 'tabtoc'; toc.id = 'tabtoc-' + tc; toc.selectedid = selectedid; for ( i = 0; i < sections.length; i++ ) { var li = document.createElement( 'li' ); if ( i === 0 ) { li.className = 'selected'; }				var a = document.createElement( 'a' ); a.href = '#' + sections[i].secid; a.appendChild( document.createTextNode( sections[i].text ) ); a.secid = sections[i].secid; li.appendChild( a ); toc.appendChild( li ); // Capture current value of variables in the closure ( function ( i, a ) {					$( window ).on( 'hashchange', function { if ( location.hash === '#' + sections[i].secid ) { TabSystem.uncoverTabSection( toc, a ); }					} )					if ( location.hash === '#' + sections[i].secid ) {						TabSystem.uncoverTabSection( toc, a );					}				} )( i, a ); }			tabcontainers[tc].parentNode.insertBefore( toc, tabcontainers[tc] ); }	},	/**	 * Show the contents of a tab section when the user clicks on the tab. *	 * @return {boolean} Always false */	uncoverTabSection: function( ul, a ) { var oldsecid = ul.selectedid; var newsec = document.getElementById( a.secid ); if ( oldsecid != a.secid ) { document.getElementById( oldsecid ).style.display = 'none'; newsec.style.display = 'block'; ul.selectedid = a.secid; var lis = ul.getElementsByTagName( 'li' ); for ( var i = 0; i < lis.length; i++ ) { lis[i].className = ''; }			a.parentNode.className = 'selected'; }		return false; } }; // Attach the onload handler using jQuery. $( function {	TabSystem.main; } );