MediaWiki:Common.js

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

// -------------------------------------------------------------------------------
//  Force Preview  JavaScript code - Start
//
//  To allow any group to bypass being forced to preview, 
//  enter the group name in the permittedGroups array.
//  E.g.
//    var permittedGroups = [];                       // force everyone
//    var permittedGroups = [ "user"];                // permit logged-in users 
//    var permittedGroups = [ "sysop", "bureaucrat"]; // permit sysop, bureaucrat 
// -------------------------------------------------------------------------------
var permittedGroups = [];
 
Array.prototype.intersects = function() {
  // --------------------------------------------------------
  //  Returns true if any element in the argument array
  //  is the same as an element in this array
  // --------------------------------------------------------
  if( !arguments.length ){
    return false;
  }
  var array2 = arguments[0];
 
  var len1 = this.length;
  var len2 = array2.length;
  if( len2 == 0 ){
    return false;
  }
 
  for(var i=0; i<len1; i++){
    for(var j=0; j<len2; j++) {
      if( this[i] === array2[j] ) {
        return true;
      }
    }
  }
  return false;
};
 
function forcePreview() 
{
  if( wgAction != "edit") return;
  if( wgUserGroups === null) {
    wgUserGroups = [];
  }
  if( wgUserGroups.intersects(permittedGroups) ) {
    return;
  }
  var saveButton = document.getElementById("wpSave");
  if( !saveButton )
    return;
  saveButton.disabled = true;
  saveButton.value = "Save page (use preview first)";
  saveButton.style.fontWeight = "normal";
  document.getElementById("wpPreview").style.fontWeight = "bold";
}
 
addOnloadHook(forcePreview);
// -----------------------------------------------------
//  Force Preview  JavaScript code - End
// -----------------------------------------------------


var autoCollapse = 2;
var collapseCaption = 'hide';
var expandCaption = 'show';
 
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 [[MediaWiki: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;
				}
			}
		}
	}
}
 
addOnloadHook( createCollapseButtons );

var hasClass = ( function() {
	var reCache = {};
	return function( element, className ) {
		return ( reCache[className] ? reCache[className] : ( reCache[className] = new RegExp( "(?:\\s|^)" + className + "(?:\\s|$)" ) ) ).test( element.className );
	};
})();