MediaWiki:Common.js

/* /* Test if an element has a certain class ************************************** * * Description: Uses regular expressions and caching for better performance. * Taken from Wikipedia's Common.js. */ var hasClass = (function {     var reCache = {};     return function (element, className) {         return (reCache[className] ? reCache[className] : (reCache[className] = new RegExp("(?:\\s|^)" + className + "(?:\\s|$)"))).test(element.className);    }; });

/** Collapsible tables ********************************************************* * *  Description: Allows tables to be collapsed, showing only the header. See *              NavFrame. * Taken from Wikipedia's Common.js. */ 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.style.styleFloat = "right"; Button.style.cssFloat = "right"; Button.style.fontWeight = "normal"; Button.style.textAlign = "right"; Button.style.width = "6em"; 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 ); }    } } addOnloadHook( createCollapseButtons ); /** Dynamic Navigation Bars (experimental) ************************************* * *  Description: See NavFrame. * Taken from Wikipedia's Common.js. */ // 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 -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 NavToggleText = document.createTextNode(NavigationBarHide); for (                 var NavChild = NavFrame.firstChild;                  NavChild != null;                  NavChild = NavChild.nextSibling                 ) { if ( hasClass( NavChild, 'NavPic' ) || hasClass( NavChild, 'NavContent' ) ) { if (NavChild.style.display == 'none') { NavToggleText = document.createTextNode(NavigationBarShow); break; }                }             }             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); }    }  }  addOnloadHook( createNavigationBarToggleButton );