MediaWiki:Common.js
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/**
* Keep code in MediaWiki:Common.js to a minimum as it is unconditionally
* loaded for all users on every wiki page. If possible create a gadget that is
* enabled by default instead of adding it here (since gadgets are fully
* optimized ResourceLoader modules with possibility to add dependencies etc.)
*
* Since Common.js isn't a gadget, there is no place to declare its
* dependencies, so we have to lazy load them with mw.loader.using on demand and
* then execute the rest in the callback. In most cases these dependencies will
* be loaded (or loading) already and the callback will not be delayed. In case a
* dependency hasn't arrived yet it'll make sure those are loaded before this.
*/
/* global mw, $ */
/* jshint strict:false, browser:true */
mw.loader.using( [ 'mediawiki.util' ] ).done( function () {
/**
* Dynamic Navigation Bars (experimental)
*
* Description: See [[Wikipedia:NavFrame]].
* Maintainers: UNMAINTAINED
*/
var collapseCaption = 'hide';
var expandCaption = 'show';
// Set up the words in your language
var navigationBarHide = '[' + collapseCaption + ']';
var navigationBarShow = '[' + expandCaption + ']';
/**
* Shows and hides content and picture (if available) of navigation bars.
*
* @param {number} indexNavigationBar The index of navigation bar to be toggled
* @param {jQuery.Event} event Event object
* @return {boolean}
*/
function toggleNavigationBar( indexNavigationBar, event ) {
var navToggle = document.getElementById( 'NavToggle' + indexNavigationBar );
var navFrame = document.getElementById( 'NavFrame' + indexNavigationBar );
var navChild;
if ( !navFrame || !navToggle ) {
return false;
}
// If shown now
if ( navToggle.firstChild.data === navigationBarHide ) {
for ( navChild = navFrame.firstChild; navChild !== null; navChild = navChild.nextSibling ) {
if ( $( navChild ).hasClass( 'NavContent' ) ) {
navChild.style.display = 'none';
}
}
navToggle.firstChild.data = navigationBarShow;
// If hidden now
} else if ( navToggle.firstChild.data === navigationBarShow ) {
for ( navChild = navFrame.firstChild; navChild !== null; navChild = navChild.nextSibling ) {
if ( $( navChild ).hasClass( 'NavContent' ) ) {
navChild.style.display = 'block';
}
}
navToggle.firstChild.data = navigationBarHide;
}
event.preventDefault();
}
/**
* Adds show/hide-button to navigation bars.
*
* @param {jQuery} $content
*/
function createNavigationBarToggleButton( $content ) {
var j, navChild, navToggle, navToggleText, isCollapsed,
indexNavigationBar = 0;
// Iterate over all < div >-elements
var $divs = $content.find( 'div.NavFrame:not(.mw-collapsible)' );
$divs.each( function ( i, navFrame ) {
indexNavigationBar++;
navToggle = document.createElement( 'a' );
navToggle.className = 'NavToggle';
navToggle.setAttribute( 'id', 'NavToggle' + indexNavigationBar );
navToggle.setAttribute( 'href', '#' );
$( navToggle ).on( 'click', $.proxy( toggleNavigationBar, null, indexNavigationBar ) );
isCollapsed = $( navFrame ).hasClass( 'collapsed' );
/**
* Check if any children are already hidden. This loop is here for backwards compatibility:
* the old way of making NavFrames start out collapsed was to manually add style="display:none"
* to all the NavPic/NavContent elements. Since this was bad for accessibility (no way to make
* the content visible without JavaScript support), the new recommended way is to add the class
* "collapsed" to the NavFrame itself, just like with collapsible tables.
*/
for ( navChild = navFrame.firstChild; navChild !== null && !isCollapsed; navChild = navChild.nextSibling ) {
if ( $( navChild ).hasClass( 'NavPic' ) || $( navChild ).hasClass( 'NavContent' ) ) {
if ( navChild.style.display === 'none' ) {
isCollapsed = true;
}
}
}
if ( isCollapsed ) {
for ( navChild = navFrame.firstChild; navChild !== null; navChild = navChild.nextSibling ) {
if ( $( navChild ).hasClass( 'NavPic' ) || $( navChild ).hasClass( 'NavContent' ) ) {
navChild.style.display = 'none';
}
}
}
navToggleText = document.createTextNode( isCollapsed ? navigationBarShow : navigationBarHide );
navToggle.appendChild( navToggleText );
// Find the NavHead and attach the toggle link (Must be this complicated because Moz's firstChild handling is borked)
for ( j = 0; j < navFrame.childNodes.length; j++ ) {
if ( $( navFrame.childNodes[ j ] ).hasClass( 'NavHead' ) ) {
navToggle.style.color = navFrame.childNodes[ j ].style.color;
navFrame.childNodes[ j ].appendChild( navToggle );
}
}
navFrame.setAttribute( 'id', 'NavFrame' + indexNavigationBar );
} );
}
mw.hook( 'wikipage.content' ).add( createNavigationBarToggleButton );
} );
/* DO NOT ADD CODE BELOW THIS LINE */