MediaWiki:Common.js

/* Any JavaScript here will be loaded for all users on every page load. */
 
// If the page name (wgPageName) contains "MediaWiki" and we're in normal view
// mode, add "mainpage" class to the body element
if ( /^MediaWiki(\/.+)?$/.test( wgPageName ) && wgAction == 'view' ) {
	addOnloadHook(function() {
		document.body.className += ' mainpage';
	});
}
 
// switches for scripts
// TODO: migrate to JSConfig
// var load_extratabs = true;
var load_edittools = true;
 
// extra drop down menu on editing for adding special characters
importScript( 'MediaWiki:Edittools.js' );
//importScript('MediaWiki:Editpage.js');
 
// Editpage scripts
if( wgAction == 'edit' || wgAction == 'submit' ) {
	importScript( 'MediaWiki:Editpage.js' );
}
 
/* End of extra pages */
 
/* Test if an element has a certain class **************************************
 *
 * From English Wikipedia, 2008-09-15
 *
 * Description: Uses regular expressions and caching for better performance.
 * Maintainers: [[User:Mike Dillon]], [[User:R. Koot]], [[User:SG]]
 */
var hasClass = (function() {
	var reCache = {};
	return function( element, className ) {
		return ( reCache[className] ? reCache[className] : ( reCache[className] = new RegExp( "(?:\\s|^)" + className + "(?:\\s|$)" ) ) ).test( element.className );
	};
})();
 
/** Collapsible tables *********************************************************
 *
 *  Description: Allows tables to be collapsed, showing only the header. See
 *                         http://www.mediawiki.org/wiki/Manual:Collapsible_tables.
 *  Maintainers: [[en:User:R. Koot]]
 */
 
var autoCollapse = 2;
var collapseCaption = 'hide';
var expandCaption = 'show';
 
function collapseTable( tableIndex ) {
        var Button = document.getElementById( 'collapseButton' + tableIndex );
        var Table = document.getElementById( 'collapsibleTable' + tableIndex );
 
        if ( !Table || !Button ) {
                return false;
        }
 
        var Rows = Table.rows;
 
        if ( Button.firstChild.data == collapseCaption ) {
                for ( var i = 1; i < Rows.length; i++ ) {
                        Rows[i].style.display = 'none';
                }
                Button.firstChild.data = expandCaption;
        } else {
                for ( var i = 1; i < Rows.length; i++ ) {
                        Rows[i].style.display = Rows[0].style.display;
                }
                Button.firstChild.data = collapseCaption;
        }
}
 
function createCollapseButtons() {
        var tableIndex = 0;
        var NavigationBoxes = new Object();
        var Tables = document.getElementsByTagName( 'table' );
 
        for ( var i = 0; i < Tables.length; i++ ) {
                if ( hasClass( Tables[i], 'collapsible' ) ) {
 
                        /* only add button and increment count if there is a header row to work with */
                        var HeaderRow = Tables[i].getElementsByTagName( 'tr' )[0];
                        if ( !HeaderRow ) {
                                continue;
                        }
                        var Header = HeaderRow.getElementsByTagName( 'th' )[0];
                        if ( !Header ) {
                                continue;
                        }
 
                        NavigationBoxes[tableIndex] = Tables[i];
                        Tables[i].setAttribute( 'id', 'collapsibleTable' + tableIndex );
 
                        var Button = document.createElement( 'span' );
                        var ButtonLink = document.createElement( 'a' );
                        var ButtonText = document.createTextNode( collapseCaption );
 
                        Button.className = 'collapseButton'; // Styles are declared in [[MediaWiki:Common.css]]
 
                        ButtonLink.style.color = Header.style.color;
                        ButtonLink.setAttribute( 'id', 'collapseButton' + tableIndex );
                        ButtonLink.setAttribute( 'href', "javascript:collapseTable(" + tableIndex + ");" );
                        ButtonLink.appendChild( ButtonText );
 
                        Button.appendChild( document.createTextNode( '[' ) );
                        Button.appendChild( ButtonLink );
                        Button.appendChild( document.createTextNode( ']' ) );
 
                        Header.insertBefore( Button, Header.childNodes[0] );
                        tableIndex++;
                }
        }
 
        for ( var i = 0;  i < tableIndex; i++ ) {
                if ( hasClass( NavigationBoxes[i], 'collapsed' ) || ( tableIndex >= autoCollapse && hasClass( NavigationBoxes[i], 'autocollapse' ) ) ) {
                        collapseTable( i );
                } else if ( hasClass( NavigationBoxes[i], 'innercollapse' ) ) {
                        var element = NavigationBoxes[i];
                        while ( element = element.parentNode ) {
                                if ( hasClass( element, 'outercollapse' ) ) {
                                        collapseTable( i );
                                        break;
                                }
                        }
                }
        }
}
 
addOnloadHook( createCollapseButtons );
 
/** Test if an element has a certain class **************************************
 *
 * Description: Uses regular expressions and caching for better performance.
 * Maintainers: [[User:Mike Dillon]], [[User:R. Koot]], [[User:SG]]
 */
 
var hasClass = ( function() {
        var reCache = {};
        return function( element, className ) {
                return ( reCache[className] ? reCache[className] : ( reCache[className] = new RegExp( "(?:\\s|^)" + className + "(?:\\s|$)" ) ) ).test( element.className );
        };
})();