MediaWiki:Common.js
Revision as of 10:44, 11 March 2020 by Apple Bottom (talk | contribs) (this isn't working reliably, let's try using a MediaWiki hook instead.)
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/* Test if an element has a certain class */ 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. */ 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 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; } } } } } function addMourningRibbon() { var ribbonLink = document.createElement( "a" ); ribbonLink.setAttribute( "href", "/wiki/Richard_K._Guy" ); var ribbonImage = document.createElement( "img" ); ribbonImage.className = "blackRibbon"; ribbonImage.setAttribute( "src", "/w/images/0/09/Black_ribbon_under_right.png" ); document.body.appendChild( ribbonLink ); ribbonLink.appendChild( ribbonImage ); } // https://stackoverflow.com/a/15564058 function addEvent(element, eventName, fn) { if (element.addEventListener) element.addEventListener(eventName, fn, false); else if (element.attachEvent) element.attachEvent('on' + eventName, fn); } // addOnloadHook doesn't exist (anymore) ...? // in any case this needs to be run AFTER the page body exists, for obvious reasons. // addEvent(window, 'load', function(){ addMourningRibbon() }); // adding an event doesn't work reliably, let's try using a MediaWiki hook ...? $wgHooks['ParseAfterTidy'][] = 'addMourningRibbon'; addOnloadHook( createCollapseButtons );