MediaWiki:Common.js

//<source lang="javascript">

/** WikiMiniAtlas *******************************************************
  *
  *  Description: WikiMiniAtlas is a popup click and drag world map.
  *               This script causes all of our coordinate links to display the WikiMiniAtlas popup button.
  *               The script itself is located on meta because it is used by many projects.
  *               See [[Meta:WikiMiniAtlas]] for more information. 
  *  Maintainers: [[User:Dschwen]]
  */

mw.loader.load('//meta.wikimedia.org/w/index.php?title=MediaWiki:Wikiminiatlas.js&action=raw&ctype=text/javascript');


/* Scripts specific to Internet Explorer */

if (navigator.appName == "Microsoft Internet Explorer") {
    
    /**
     * Remove need for CSS hacks regarding MSIE and IPA.
     */
    if (document.createStyleSheet) {
        document.createStyleSheet().addRule('.IPA', 'font-family: "Doulos SIL", "Charis SIL", Gentium, "DejaVu Sans", Code2000, "TITUS Cyberbit Basic", "Arial Unicode MS", "Lucida Sans Unicode", "Chrysanthi Unicode";');
    }

    // In print IE (7?) does not like line-height
    mw.util.addCSS( '@media print { sup, sub, p, .documentDescription { line-height: normal; }}');
}


/* 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);
    };
})();


/** Interwiki links to featured articles ***************************************
 *
 *  Description: Highlights interwiki links to featured articles (or
 *               equivalents) by changing the bullet before the interwiki link
 *               into a star.
 *  Maintainers: [[User:R. Koot]]
 */

function LinkFA() 
{
    if ( document.getElementById( "p-lang" ) ) {
        var InterwikiLinks = document.getElementById( "p-lang" ).getElementsByTagName( "li" );

        for ( var i = 0; i < InterwikiLinks.length; i++ ) {
            if ( document.getElementById( InterwikiLinks[i].className + "-fa" ) ) {
                InterwikiLinks[i].className += " FA"
                InterwikiLinks[i].title = "This is a featured article in another language.";
            }
        }
    }
}

$(document).ready( LinkFA );


/** Collapsible tables *********************************************************
 *
 *  Description: Allows tables to be collapsed, showing only the header. See
 *               [[Wikipedia:NavFrame]].
 *  Maintainers: [[User:R. Koot]]
 */

var autoCollapse = 2;
var collapseCaption = "gizle";
var expandCaption = "görkez";

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 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;
                }
            }
        }
    }
}

$(document).ready( createCollapseButtons );


/** Dynamic Navigation Bars (experimental) *************************************
 *
 *  Description: See [[Wikipedia:NavFrame]].
 *  Maintainers: UNMAINTAINED
 */

// 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
function toggleNavigationBar(indexNavigationBar)
{
    var NavToggle = document.getElementById("NavToggle" + indexNavigationBar);
    var NavFrame = document.getElementById("NavFrame" + indexNavigationBar);

    if (!NavFrame || !NavToggle) {
        return false;
    }

    // if shown now
    if (NavToggle.firstChild.data == NavigationBarHide) {
        for (var NavChild = NavFrame.firstChild; NavChild != null; NavChild = NavChild.nextSibling) {
            if ( hasClass( NavChild, 'NavPic' ) ) {
                NavChild.style.display = 'none';
            }
            if ( hasClass( NavChild, 'NavContent') ) {
                NavChild.style.display = 'none';
            }
        }
    NavToggle.firstChild.data = NavigationBarShow;

    // if hidden now
    } else if (NavToggle.firstChild.data == NavigationBarShow) {
        for (var NavChild = NavFrame.firstChild; NavChild != null; NavChild = NavChild.nextSibling) {
            if (hasClass(NavChild, 'NavPic')) {
                NavChild.style.display = 'block';
            }
            if (hasClass(NavChild, 'NavContent')) {
                NavChild.style.display = 'block';
            }
        }
        NavToggle.firstChild.data = NavigationBarHide;
    }
}

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

            indexNavigationBar++;
            var NavToggle = document.createElement("a");
            NavToggle.className = 'NavToggle';
            NavToggle.setAttribute('id', 'NavToggle' + indexNavigationBar);
            NavToggle.setAttribute('href', 'javascript:toggleNavigationBar(' + indexNavigationBar + ');');

            var isCollapsed = hasClass( NavFrame, "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 (var NavChild = NavFrame.firstChild; NavChild != null && !isCollapsed; NavChild = NavChild.nextSibling) {
                if ( hasClass( NavChild, 'NavPic' ) || hasClass( NavChild, 'NavContent' ) ) {
                    if ( NavChild.style.display == 'none' ) {
                        isCollapsed = true;
                    }
                }
            }
            if (isCollapsed) {
                for (var NavChild = NavFrame.firstChild; NavChild != null; NavChild = NavChild.nextSibling) {
                    if ( hasClass( NavChild, 'NavPic' ) || hasClass( NavChild, '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 (hasClass(NavFrame.childNodes[j], "NavHead")) {
                    NavFrame.childNodes[j].appendChild(NavToggle);
                }
            }
            NavFrame.setAttribute('id', 'NavFrame' + indexNavigationBar);
        }
    }
}

$(document).ready( createNavigationBarToggleButton );

/** "Technical restrictions" title fix *****************************************
 *
 *  Description: For pages that have something like Template:Wrongtitle, replace
 *               the title, but only if it is cut-and-pasteable as a valid
 *               wikilink. For instance, "NZR WB class" can be changed to
 *               "NZR W<sup>B</sup> class", but [[C#]] is not an equivalent wikilink,
 *               so [[C Sharp]] doesn't have its main title changed.
 *
 *               The function looks for a banner like this: 
 *               <div id="RealTitleBanner"> ... <span id="RealTitle">title</span> ... </div>
 *  Maintainers: Remember_the_dot
 */

if (mw.config.get('wgAction') == "view") //prevents "Editing " from disappearing during preview
{
    $(document).ready(function()
    {
        var realTitle = document.getElementById("RealTitle")
        
        if (realTitle)
        {
            //normalizes a title or a namespace name (but not both)
            //trims leading and trailing underscores and converts (possibly multiple) spaces and underscores to single underscores
            function normalizeTitle(title)
            {
                return title.replace(/^_+/, "").replace(/_+$/, "").replace(/[\s_]+/g, "_")
            }
            
            if (realTitle.textContent) //everyone but IE
            {
                var realTitleText = realTitle.textContent
            }
            else //IE
            {
                var realTitleText = realTitle.innerText
            }
            
            var normalizedRealTitle
            var normalizedPageTitle
            var indexOfColon = realTitleText.indexOf(":")
            var normalizedNamespaceName = normalizeTitle(realTitleText.substring(0, indexOfColon)).toLowerCase()
            
            //make namespace prefix lowercase and uppercase the first letter of the title
            if (indexOfColon == -1 || mw.config.get('wgCanonicalNamespace').toLowerCase() != normalizedNamespaceName) //no namespace prefix - either no colon or a nonsensical namespace prefix (for example, "Foo" in "Foo: The Story of My Life")
            {
                normalizedRealTitle = normalizeTitle(realTitleText)
                normalizedRealTitle = normalizedRealTitle.charAt(0).toUpperCase() + normalizedRealTitle.substring(1)
                normalizedPageTitle = mw.config.get('wgPageName').charAt(0).toUpperCase() + mw.config.get('wgPageName').substring(1)
            }
            else //using a namespace prefix
            {
                var normalizedRealPageTitle = normalizeTitle(realTitleText.substring(indexOfColon + 1))
                
                normalizedRealTitle = normalizedNamespaceName
                if (normalizedNamespaceName != "") //namespace 0 is a special case where the leading colon should never be shown
                {
                    normalizedRealTitle += ":"
                }
                normalizedRealTitle += normalizedRealPageTitle.charAt(0).toUpperCase() + normalizedRealPageTitle.substring(1)
                normalizedPageTitle = mw.config.get('wgPageName').substring(0, mw.config.get('wgPageName').indexOf(":") + 1).toLowerCase() + mw.config.get('wgPageName').substring(mw.config.get('wgPageName').indexOf(":") + 1)
            }
            
            if (normalizedRealTitle == normalizedPageTitle) //normalized titles match, so we can do full replacement
            {
                var h1 = document.getElementsByTagName("h1")[0]
                
                //remove all child nodes, including text
                while (h1.firstChild) 
                {
                    h1.removeChild(h1.firstChild)
                }
                
                //populate with nodes of real title
                while (realTitle.firstChild) //the children are moved to a new parent element
                {
                    h1.appendChild(realTitle.firstChild)
                }
                
                //correct the page title
                document.title = realTitleText + " - Wikipedia, the free encyclopedia"
                
                //delete the real title banner since the problem is solved
                var realTitleBanner = document.getElementById("RealTitleBanner")
                if (realTitleBanner) realTitleBanner.parentNode.removeChild(realTitleBanner)
            }
        }
    })
}

//</source>