Difference between revisions of "MediaWiki:Common.js"

/**
 * 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, $, importStylesheet, importScript */
/*jshint curly:false eqnull:true, strict:false, browser:true, */

// Though VisualEditor is already available for all users (including anonymous users),
// many pages cached for anonymous users don't have the Edit tab. This ensures it is
// consistently available for all pages for anonymous users while the cache rolls over.
// It has no effect on logged-in users or pages edited after VE was enabled.
// This does NOT override namespace, skin and user conditions as those are evaluated
// inside the init module.
// * Remove after 1 September 2013.
// * Keep the below mw.loader.load call outside mw.loader.using!
// --
// Hi again, so yeah, mw.loader.load queue is cached for anonymous users and stuck
// in a state where VE isn't loaded yet. However the init script bravely checks the
// 'visualeditor-enable' preference which also didn't exist yet, so it still fails.
// Here we set that preference to 1 if it is undefined, which is only the case for
// anonymous users viewing pages that got last purged before July 2013.
// * Remove after 1 September 2013.
// * Keep mw.user.options.set before mw.loader.load
if ( mw.user.options.values['visualeditor-enable'] === undefined ) {
    mw.user.options.set( 'visualeditor-enable', 1 );
}
mw.loader.load( 'ext.visualEditor.viewPageTarget.init' );

mw.loader.using( ['mediawiki.util', 'mediawiki.notify', 'jquery.client'], function () {
/* Begin of mw.loader.using callback */

/**
 * Main Page layout fixes
 *
 * Description: Adds an additional link to the complete list of languages available.
 * Maintainers: [[User:AzaToth]], [[User:R. Koot]], [[User:Alex Smotrov]]
 */
if ( mw.config.get( 'wgPageName' ) === 'Main_Page' || mw.config.get( 'wgPageName' ) === 'Talk:Main_Page' ) {
    $( document ).ready( function () {
        mw.util.addPortletLink( 'p-lang', '//meta.wikimedia.org/wiki/List_of_Wikipedias',
            'Complete list', 'interwiki-completelist', 'Complete list of Wikipedias' );
    } );
}

/**
 * Redirect User:Name/skin.js and skin.css to the current skin's pages
 * (unless the 'skin' page really exists)
 * @source: http://www.mediawiki.org/wiki/Snippets/Redirect_skin.js
 * @rev: 2
 */
if ( mw.config.get( 'wgArticleId' ) === 0 && mw.config.get( 'wgNamespaceNumber' ) === 2 ) {
    var titleParts = mw.config.get( 'wgPageName' ).split( '/' );
    /* Make sure there was a part before and after the slash
       and that the latter is 'skin.js' or 'skin.css' */
    if ( titleParts.length == 2 ) {
        var userSkinPage = titleParts.shift() + '/' + mw.config.get( 'skin' );
        if ( titleParts.slice( -1 ) == 'skin.js' ) {
            window.location.href = mw.util.wikiGetlink( userSkinPage + '.js' );
        } else if ( titleParts.slice( -1 ) == 'skin.css' ) {
            window.location.href = mw.util.wikiGetlink( userSkinPage + '.css' );
        }
    }
}

/**
 * Map addPortletLink to mw.util 
 *
 * @deprecated: Use mw.util.addPortletLink instead.
 */
mw.log.deprecate( window, 'addPortletLink', function () {
    return mw.util.addPortletLink.apply( mw.util, arguments );
}, 'Use mw.util.addPortletLink() instead' );

/**
 * Extract a URL parameter from the current URL
 *
 * @deprecated: Use mw.util.getParamValue with proper escaping
 */
mw.log.deprecate( window, 'getURLParamValue', function () {
    return mw.util.getParamValue.apply( mw.util, arguments );
}, 'Use mw.util.getParamValue() instead' );

/** 
 * Test if an element has a certain class
 *
 * @deprecated:  Use $(element).hasClass() instead.
 */
mw.log.deprecate( window, 'hasClass', function ( element, className ) {
    return $( element ).hasClass( className );
}, 'Use jQuery.hasClass() instead' );

/**
 * @source www.mediawiki.org/wiki/Snippets/Load_JS_and_CSS_by_URL
 * @rev 5
 */
// CSS
var extraCSS = mw.util.getParamValue( 'withCSS' );
if ( extraCSS ) {
	if ( extraCSS.match( /^MediaWiki:[^&<>=%#]*\.css$/ ) ) {
		importStylesheet( extraCSS );
	} else {
		mw.notify( 'Only pages from the MediaWiki namespace are allowed.', { title: 'Invalid withCSS value' } );
	}
}

// JS
var extraJS = mw.util.getParamValue( 'withJS' );
if ( extraJS ) {
	if ( extraJS.match( /^MediaWiki:[^&<>=%#]*\.js$/ ) ) {
		importScript( extraJS );
	} else {
		mw.notify( 'Only pages from the MediaWiki namespace are allowed.', { title: 'Invalid withJS value' } );
	}
}

/**
 * Import more specific scripts if necessary
 */
if ( mw.config.get( 'wgAction' ) === 'edit' || mw.config.get( 'wgAction' ) === 'submit' || mw.config.get( 'wgCanonicalSpecialPageName' ) === 'Upload' ) {
    /* scripts specific to editing pages */
    importScript( 'MediaWiki:Common.js/edit.js' );
} else if ( mw.config.get( 'wgCanonicalSpecialPageName' ) === 'Watchlist' ) {
    /* watchlist scripts */
    importScript( 'MediaWiki:Common.js/watchlist.js' );
}
if ( mw.config.get( 'wgNamespaceNumber' ) === 6 ) {
    /* file description page scripts */
    importScript( 'MediaWiki:Common.js/file.js' );
}

/**
 * Load scripts specific to Internet Explorer
 */
if ( $.client.profile().name === 'msie' ) {
    importScript( 'MediaWiki:Common.js/IEFixes.js' );
}

/**
 * Fix for Windows XP Unicode font rendering
 */
if ( navigator.appVersion.search(/windows nt 5/i) !== -1 ) {
    mw.util.addCSS( '.IPA { font-family: "Lucida Sans Unicode", "Arial Unicode MS"; } ' + 
                '.Unicode { font-family: "Arial Unicode MS", "Lucida Sans Unicode"; } ' );
}

/**
 * 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]]
 */
( function () {
    var require_wikiminiatlas = false;
    var coord_filter = /geohack/;
    $( document ).ready( function() {
        $( 'a.external.text' ).each( function( key, link ) {
            if ( link.href && coord_filter.exec( link.href ) ) {
                require_wikiminiatlas = true;
                // break from loop
                return false;
            }
        } );
        if ( $( 'div.kmldata' ).length ) {
            require_wikiminiatlas = true;
        }
        if ( require_wikiminiatlas ) {
            mw.loader.load( '//meta.wikimedia.org/w/index.php?title=MediaWiki:Wikiminiatlas.js&action=raw&ctype=text/javascript' );
        }
    } );
} )();

/**
 * 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 this language.';
            } else if ( document.getElementById( InterwikiLinks[i].className + '-ga' ) ) {
                InterwikiLinks[i].className += ' GA';
                InterwikiLinks[i].title = 'This is a good article in this language.';
            }
        }
    }
}

$( 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 = 'hide';
var expandCaption = 'show';

window.collapseTable = function ( tableIndex ) {
    var Button = document.getElementById( 'collapseButton' + tableIndex );
    var Table = document.getElementById( 'collapsibleTable' + tableIndex );

    if ( !Table || !Button ) {
        return false;
    }

    var Rows = Table.rows;
    var i;

    if ( Button.firstChild.data === collapseCaption ) {
        for ( i = 1; i < Rows.length; i++ ) {
            Rows[i].style.display = 'none';
        }
        Button.firstChild.data = expandCaption;
    } else {
        for ( 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 = {};
    var Tables = document.getElementsByTagName( 'table' );
    var i;

    function handleButtonLink( index, e ) {
        window.collapseTable( index );
        e.preventDefault();
    }

    for ( i = 0; i < Tables.length; i++ ) {
        if ( $( Tables[i] ).hasClass( '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', '#' );
            $( ButtonLink ).on( 'click', $.proxy( handleButtonLink, ButtonLink, tableIndex ) );
            ButtonLink.appendChild( ButtonText );

            Button.appendChild( document.createTextNode( '[' ) );
            Button.appendChild( ButtonLink );
            Button.appendChild( document.createTextNode( ']' ) );

            Header.insertBefore( Button, Header.firstChild );
            tableIndex++;
        }
    }

    for ( i = 0;  i < tableIndex; i++ ) {
        if ( $( NavigationBoxes[i] ).hasClass( 'collapsed' ) || ( tableIndex >= autoCollapse && $( NavigationBoxes[i] ).hasClass( 'autocollapse' ) ) ) {
            window.collapseTable( i );
        } 
        else if ( $( NavigationBoxes[i] ).hasClass ( 'innercollapse' ) ) {
            var element = NavigationBoxes[i];
            while ((element = element.parentNode)) {
                if ( $( element ).hasClass( 'outercollapse' ) ) {
                    window.collapseTable ( i );
                    break;
                }
            }
        }
    }
}

$( 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
 **/
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 );

/**
 * Uploadwizard_newusers
 * Switches in a message for non-autoconfirmed users at [[Wikipedia:Upload]]
 *
 * Maintainers: [[User:Krimpet]]
 */
function uploadwizard_newusers() {
    if ( mw.config.get( 'wgNamespaceNumber' ) === 4 && mw.config.get( 'wgTitle' ) === 'Upload' && mw.config.get( 'wgAction' ) === 'view' ) {
        var oldDiv = document.getElementById( 'autoconfirmedusers' ),
            newDiv = document.getElementById( 'newusers' );
        if ( oldDiv && newDiv ) {
            var userGroups = mw.config.get( 'wgUserGroups' );
            if ( userGroups ) {
                for ( var i = 0; i < userGroups.length; i++ ) {
                    if ( userGroups[i] === 'autoconfirmed' ) {
                        oldDiv.style.display = 'block';
                        newDiv.style.display = 'none';
                        return;
                    }
                }
            }
            oldDiv.style.display = 'none';
            newDiv.style.display = 'block';
            return;
        }
    }
}

$(uploadwizard_newusers);

/**
 * Magic editintros ****************************************************
 *
 * Description: Adds editintros on disambiguation pages and BLP pages.
 * Maintainers: [[User:RockMFR]]
 */
function addEditIntro( name ) {
    $( '.mw-editsection, #ca-edit' ).find( 'a' ).each( function ( i, el ) {
        el.href = $( this ).attr( 'href' ) + '&editintro=' + name;
    } );
}

if ( mw.config.get( 'wgNamespaceNumber' ) === 0 ) {
    $( function () {
        if ( document.getElementById( 'disambigbox' ) ) {
            addEditIntro( 'Template:Disambig_editintro' );
        }
    } );

    $( function () {
        var cats = document.getElementById( 'mw-normal-catlinks' );
        if ( !cats ) {
            return;
        }
        cats = cats.getElementsByTagName( 'a' );
        for ( var i = 0; i < cats.length; i++ ) {
            if ( cats[i].title === 'Category:Living people' || cats[i].title === 'Category:Possibly living people' ) {
                addEditIntro( 'Template:BLP_editintro' );
                break;
            }
        }
    } );
}

/**
 * Description: Stay on the secure server as much as possible
 * Maintainers: [[User:TheDJ]]
 */
if ( document.location && document.location.protocol  && document.location.protocol === 'https:' ) {
    /* New secure servers */
    importScript( 'MediaWiki:Common.js/secure new.js' );
}

/* End of mw.loader.using callback */
} );
/* DO NOT ADD CODE BELOW THIS LINE */