MediaWiki:Common.js
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/* Any JavaScript here will be loaded for all users on every page load. */
/* Returns h1.firstHeading (the page title element). */
function getFirstHeading() {
var elements = getElementsByClass( 'firstHeading', document.getElementById( 'content' ), 'h1' );
return ( elements != null && elements.length > 0 ) ? elements[0] : null;
}
/*
Source: http://www.dustindiaz.com/getelementsbyclass/
getElementsByClass, which complements getElementById and getElementsByTagName, returns an array of all subelements of ''node'' that are tagged with a specific CSS class (''searchClass'') and are of the tag name ''tag''. If tag is null, it searches for any suitable elements regardless of the tag name.
Example: getElementsByClass( 'infobox', document.getElementById( 'content' ), 'div' ) selects the same elements as the CSS declaration #content div.infobox
*/
function getElementsByClass( searchClass, node, tag ) {
var classElements = new Array();
if( node == null ) {
node = document;
}
if( tag == null ) {
tag = '*';
}
var els = node.getElementsByTagName( tag );
var elsLen = els.length;
var tester = new ClassTester( searchClass );
for( i = 0, j = 0; i < elsLen; i++ ) {
if( tester.isMatch( els[i] ) ) {
classElements[j] = els[i];
j++;
}
}
return classElements;
}
function ClassTester( className ) {
this.regex = new RegExp( "(^|\\s)" + className + "(\\s|$)" );
}
ClassTester.prototype.isMatch = function( element ) {
return this.regex.test( element.className );
}
/* end getElementsByClass */
// BEGIN JavaScript title rewrite
function rewriteTitle() {
if( typeof( window.SKIP_TITLE_REWRITE ) != 'undefined' && window.SKIP_TITLE_REWRITE ) {
return;
}
var titleDiv = document.getElementById( 'title-meta' );
if( titleDiv == null ) {
return;
}
var cloneNode = titleDiv.cloneNode( true );
var firstHeading = getFirstHeading();
var node = firstHeading.childNodes[0];
// new, then old!
firstHeading.replaceChild( cloneNode, node );
cloneNode.style.display = 'inline';
var titleAlign = document.getElementById( 'title-align' );
firstHeading.style.textAlign = titleAlign.childNodes[0].nodeValue;
}
addOnloadHook( rewriteTitle );
// END JavaScript title rewrite
// Era icons
addOnloadHook( loadEraicons );
function loadEraicons() {
showEras( 'title-eraicons' );
showEras( 'title-shortcut' );
}
function showEras( className ) {
if( typeof( SKIP_ERAS ) != 'undefined' && SKIP_ERAS ) {
return;
}
var titleDiv = document.getElementById( className );
if( titleDiv == null || titleDiv == undefined ) {
return;
}
var cloneNode = titleDiv.cloneNode( true );
var firstHeading = getFirstHeading();
firstHeading.insertBefore( cloneNode, firstHeading.childNodes[0] );
cloneNode.style.display = 'block';
}