MediaWiki:Common.js

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

/* Test if an element has a certain class * * @deprecated: Use $(element).hasClass instead. */ window.hasClass = ( function {   var reCache = {};    return function (element, className) {        return (reCache[className] ? reCache[className] : (reCache[className] = new RegExp("(?:\\s|^)" + className + "(?:\\s|$)"))).test(element.className);   }; });

/* Helper script for .hlist class in common.css */ if ( $.client.profile.name == 'msie' ) { /* Add pseudo-selector class to last child list items in IE 8 */ if ( $.client.profile.versionBase == '8' ) { $( '.hlist' ).find( 'dd:last-child, dt:last-child, li:last-child' ) .addClass( 'hlist-last-child' ); } /* Generate interpuncts and parens for IE < 8 */ if ( $.client.profile.versionBase < '8' ) { $( '.hlist' ).find( 'dt + dd, dt + dt' ).prev .append( ': ' ); $( '.hlist' ).find( 'dd + dd, dd + dt, li + li' ).prev .append( '· ' ); $( '.hlist' ).find( 'dl dl, ol ol, ul ul' ) .prepend( '( ' ).append( ') ' ); } }

/** Collapsible tables ********************************************************* * * Description: Allows tables to be collapsed, showing only the header. See *              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; 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", "#" ); addHandler( ButtonLink, "click", new Function( "evt", "collapseTable(" + tableIndex + " ); return killEvt( evt );") ); ButtonLink.appendChild( ButtonText ); Button.appendChild( document.createTextNode( "[" ) ); Button.appendChild( ButtonLink ); Button.appendChild( document.createTextNode( "]" ) ); Header.insertBefore( Button, Header.firstChild ); 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; }           }        }    } } $( createCollapseButtons ); /** Dynamic Navigation Bars (experimental) ************************************* * * Description: See 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){ 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, 'NavContent') || hasClass(NavChild, 'NavPic')) { 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, 'NavContent') || hasClass(NavChild, 'NavPic')) { NavChild.style.display = 'block'; }       }        NavToggle.firstChild.data = NavigationBarHide; } } // adds show/hide-button to navigation bars function createNavigationBarToggleButton{ var indexNavigationBar = 0; // iterate over all -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")) { NavToggle.style.color = NavFrame.childNodes[j].style.color; NavFrame.childNodes[j].appendChild(NavToggle); }           }            NavFrame.setAttribute('id', 'NavFrame' + indexNavigationBar); }   } } $( createNavigationBarToggleButton );

/** Drop-down list helper code ************************************* * * Description: See. * Maintainers: UNMAINTAINED */

function ddm {

// Variables, change these in case you need to set other class names (mmhide_ for contribute users for example) var parentClass='isParent';            //gets applied when the LI has a nested UL    var activeParentClass='isActive';       //gets applied when the nested UL is visible var preventHoverClass='nohover';       //denotes a navigation that should not get any hover effects var indicateJSClass='dhtml';           //gets applied to the main navigation when Javascript is available var toHideClass='hiddenChild';         //gets applied to hide the nested UL    var toShowClass='shownChild';           //gets applied to show the nested UL    var currentClass='current';             //denotes the current active sub element and prevents collapsing var d=document.getElementById('nav');  //denotes the navigation element

// if DOM is not available stop right here. if(!document.getElementById && !document.createTextNode) { return; }

// if the navigation element is available, apply the class denoting DHTML capabilities if(d) { d.className+=d.className==?indicateJSClass:+indicateJSClass; var lis,i,firstUL,j,apply;

// loop through all LIs and check which ones have a nested UL       lis=d.getElementsByTagName('li'); for(i=0;i<lis.length;i++) { firstUL=lis[i].getElementsByTagName('ul')[0]

// if there is a nested UL, deactivate the first nested link and apply the class to show // there is a nested list if(firstUL) { lis[i].childNodes[0].onclick=function{return false;} lis[i].className+=lis[i].className==?parentClass:+parentClass;

// check if there is a "current" element apply=true; if(new RegExp('\\b'+currentClass+'\\b').test(lis[i].className)) { apply=false; }

if(apply) { for(j=0;j<firstUL.getElementsByTagName('li').length;j++) { if(new RegExp('\\b'+currentClass+'\\b').test(firstUL.getElementsByTagName('li')[j].className)) { apply=false; break }                   }                }

// if there is no current element, apply the class to hide the nested list if(apply) { firstUL.className+=firstUL.className==?toHideClass:+toHideClass;

// check if there is a class to prevent hover effects and only apply the function // onclick if that is the case, otherwise apply it onclick and onhover if(new RegExp('\\b'+preventHoverClass+'\\b').test(d.className)) { lis[i].onclick=function{doddm(this);} } else { lis[i].onclick=function{doddm(this);} lis[i].onmouseover=function{doddm(this);} lis[i].onmouseout=function{doddm(null);} }

// if there is a current element, define the list as being kept open and apply the // classes to show the nested list and define the parent LI as an active one } else { lis[i].keepopen=1; firstUL.className+=firstUL.className==?toShowClass:+toShowClass; lis[i].className=lis[i].className.replace(parentClass,activeParentClass); }           }        }    }

// function to show and hide the nested lists and add the classes to the parent LIs function doddm(o) { var childUL,isobj,swap;

// loop through all LIs of the navigation lis=d.getElementsByTagName('li'); for(i=0;i<lis.length;i++) { isobj=lis[i]==o;

// function to exchange class names in an object swap=function(tmpobj,tmporg,tmprep) { tmpobj.className=tmpobj.className.replace(tmporg,tmprep) }

// if the current LI does not have an indicator to be kept visible if(!lis[i].keepopen) { childUL=lis[i].getElementsByTagName('ul')[0];

// check if there is a nested UL and if the current LI is not the one clicked on               // and exchange the classes accordingly (ie. hide all other nested lists and                 // make the LIs parent rather than active.                if(childUL) {                           if(new RegExp('\\b'+preventHoverClass+'\\b').test(d.className)) {                        if(new RegExp('\\b'+activeParentClass+'\\b').test(lis[i].className)) {                            swap(childUL,isobj?toShowClass:toHideClass,isobj?toHideClass:toShowClass);                                 swap(lis[i],isobj?activeParentClass:parentClass,isobj?parentClass:activeParentClass);                          } else {                            swap(childUL,isobj?toHideClass:toShowClass,isobj?toShowClass:toHideClass);                                 swap(lis[i],isobj?parentClass:activeParentClass,isobj?activeParentClass:parentClass); }                   } else { swap(childUL,isobj?toHideClass:toShowClass,isobj?toShowClass:toHideClass); swap(lis[i],isobj?parentClass:activeParentClass,isobj?activeParentClass:parentClass); }               }             }        }    } }

window.onload=function { ddm; // add other functions to be called onload below }