MediaWiki:Common.js

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

/** Collapsible tables *********************************************************
 *
 *  Description: Allows tables to be collapsed, showing only the header. See
 *                         http://www.mediawiki.org/wiki/Manual:Collapsible_tables.
 *  Maintainers: [[en:User:R. Koot]]
 */

var autoCollapse = 2;
var collapseCaption = 'hide';
var expandCaption = 'show';

function collapseTable( tableIndex, tag ) {
  var tag = tag || "table";
  var Button = document.getElementById( 'collapseButton' + tableIndex );
  var Table = document.getElementById( 'collapsibleTable-' + tag + "-" + tableIndex );

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

  if (tag === "table") {
    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;
    }
  } else {
    Table.style.display = Table.style.display === "none" ? "block" : "none";
  }
}

function createCollapseButtons(parent, tag) {
  var tableIndex = 0;
  var NavigationBoxes = new Object();
  var parent = parent || document;
  var tag = tag || "table";
  var Tables = parent.getElementsByTagName( tag );

  for ( var i = 0; i < Tables.length; i++ ) {
    if ( hasClass( Tables[i], 'collapsible' ) ) {
      var current_table = Tables[i];

      NavigationBoxes[tableIndex] = current_table;
      current_table.setAttribute( 'id', 'collapsibleTable-' + tag + "-" + tableIndex );
      var Button = document.createElement( 'div' );
      var ButtonLink = document.createElement( 'a' );
      var ButtonText = document.createTextNode( collapseCaption );

      Button.className = 'collapseButton'; // Styles are declared in [[MediaWiki:Common.css]]
      Button.style.width = current_table.offsetWidth + "px";

      ButtonLink.setAttribute( 'id', 'collapseButton' + tableIndex );
      ButtonLink.setAttribute( 'href', "javascript:collapseTable(" + tableIndex + ", '" + tag + "');" );
      ButtonLink.appendChild( ButtonText );

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

      current_table.parentNode.insertBefore( Button, current_table );
      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;
        }
      }
    }
  }
}

addOnloadHook( createCollapseButtons );
addOnloadHook( function () {
  createCollapseButtons(document.getElementById('mw-content-text'), 'p');
});

/** 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 );
    };
    })();



/* GOOGLE FONTS */
  WebFontConfig = {
    google: { families: [ 'IM+Fell+DW+Pica::latin' ] }
  };
  (function() {
    var wf = document.createElement('script');
    wf.src = ('https:' == document.location.protocol ? 'https' : 'http') +
      '://ajax.googleapis.com/ajax/libs/webfont/1/webfont.js';
    wf.type = 'text/javascript';
    wf.async = 'true';
    var s = document.getElementsByTagName('script')[0];
    s.parentNode.insertBefore(wf, s);
  })();