MediaWiki:Common.js

//================================================================================
//*** Dynamic Navigation Bars

// set up max count of Navigation Bars on page,
// if there are more, all will be hidden
// mw.user.options.set( 'NavigationBarShowDefault', 0 ); // all bars will be hidden
// mw.user.options.set( 'NavigationBarShowDefault', 1 ); // on pages with more than 1 bar all bars will be hidden

// adds show/hide-button to navigation bars
// using 'jquery.makeCollapsible': for messages
// using 'user', 'mediawiki.user', 'user.options': wait for overrides in user.js
mw.loader.using( [ 'jquery.makeCollapsible', 'user', 'mediawiki.user', 'user.options' ], function() { mw.hook( 'wikipage.content' ).add( function( $content ) {
	// allow setting NavigationBarShowDefault
	var showDefaultCount = mw.user.options.get( 'NavigationBarShowDefault',
		typeof NavigationBarShowDefault !== 'undefined' ? NavigationBarShowDefault : 1 );
	// allow user overrides for b/c
	var textHide = typeof NavigationBarHide === 'string' ? NavigationBarHide : mw.msg( 'collapsible-collapse' );
	var textShow = typeof NavigationBarShow === 'string' ? NavigationBarShow : mw.msg( 'collapsible-expand' );

	// shows and hides content and picture (if available) of navigation bars
	// Parameters:
	//     indexNavigationBar: the index of navigation bar to be toggled
		function toggleNavigationBar(NavToggle, NavFrame)
	{
		if (!NavFrame || !NavToggle) {
			return false;
		}
	// if shown now
		if (NavToggle.firstChild.data === textHide) {
			for (
					var NavChild = NavFrame.firstChild;
					NavChild !== null;
					NavChild = NavChild.nextSibling
				) {
				if (NavChild.className === 'NavPic' || NavChild.className === 'NavContent') {
					NavChild.style.display = 'none';
				}
			}
			NavToggle.firstChild.data = textShow;
		}	
	}
})});