MediaWiki:Common.js
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/* Any JavaScript here will be loaded for all users on every page load. */
/** 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 );
};
})();