Difference between revisions of "MediaWiki:Common.js"
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− | /* | + | /** 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 ) { | ||
+ | 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 ); | ||
+ | |||
+ | /** 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 ); | ||
+ | }; | ||
+ | })(); |
Latest revision as of 11:45, 23 May 2013
/** 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 ) { 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 ); /** 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 ); }; })();