Changes

MediaWiki:Common.js

4,474 bytes added, 10:39, 22 August 2013

Adding dynamic navigation bar code

/* Any JavaScript here will be loaded for all users on every page load. */


/* set up the words in your language */
var NavigationBarHide = '[' + collapseCaption + ']';
var NavigationBarShow = '[' + expandCaption + ']';

/**
* Shows and hides content and picture (if available) of navigation bars
* Parameters:
* indexNavigationBar: the index of navigation bar to be toggled
**/
window.toggleNavigationBar = function ( 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 ).hasClass( 'NavPic' ) ) {
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 ).hasClass( 'NavPic' ) ) {
NavChild.style.display = 'block';
}
}
NavToggle.firstChild.data = NavigationBarHide;
}

event.preventDefault();
};

/* adds show/hide-button to navigation bars */
function createNavigationBarToggleButton() {
var indexNavigationBar = 0;
var NavFrame;
var NavChild;
/* iterate over all < div >-elements */
var divs = document.getElementsByTagName( 'div' );
for ( var i = 0; (NavFrame = divs[i]); i++ ) {
/* if found a navigation bar */
if ( $( NavFrame ).hasClass( 'NavFrame' ) ) {

indexNavigationBar++;
var NavToggle = document.createElement( 'a' );
NavToggle.className = 'NavToggle';
NavToggle.setAttribute( 'id', 'NavToggle' + indexNavigationBar );
NavToggle.setAttribute( 'href', '#' );
$( NavToggle ).on( 'click', $.proxy( window.toggleNavigationBar, window, indexNavigationBar ) );

var 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';
}
}
}
var 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( var 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 );
}
}
}

$( createNavigationBarToggleButton );

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Andreas Jonsson

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