Guy: Hopefully this works - adding collapsible table functionality

2016-04-15T07:51:28Z

Hopefully this works - adding collapsible table functionality

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/* Any JavaScript here will be loaded for all users on every page load. */
/**
* Collapsible tables
*
* Allows tables to be collapsed, showing only the header. See [[Wikipedia:NavFrame]].
* @maintainer [[User:R. Koot]] (on Wikipedia)
*/

var autoCollapse = 2;
var collapseCaption = 'hide';
var expandCaption = 'show';

function hasClass( element, className ) {
var Classes = element.className.split( " " );
for ( var i = 0; i < Classes.length; i++ ) {
if ( Classes[i] == className ) {
return true;
}
}
return false;
}

function collapseTable( tableIndex ) {
var i;
var Button = document.getElementById( 'collapseButton' + tableIndex );
var Table = document.getElementById( 'collapsibleTable' + tableIndex );

if ( !Table || !Button ) {
return false;
}

var Rows = Table.getElementsByTagName( 'tr' );

if ( Button.firstChild.data == collapseCaption ) {
for ( i = 1; i < Rows.length; i++ ) {
Rows[i].style.display = 'none';
}
Button.firstChild.data = expandCaption;
} else {
for ( i = 1; i < Rows.length; i++ ) {
Rows[i].style.display = Rows[0].style.display;
}
Button.firstChild.data = collapseCaption;
}
}

function createCollapseButtons() {
var i;
var tableIndex = 0;
var NavigationBoxes = {};
var Tables = document.getElementsByTagName( 'table' );

for ( i = 0; i < Tables.length; i++ ) {
if ( hasClass( Tables[i], 'collapsible' ) ) {
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.setAttribute( 'id', 'collapseButton' + tableIndex );
ButtonLink.setAttribute( 'href', 'javascript:collapseTable(' + tableIndex + ');' );
ButtonLink.appendChild( ButtonText );

Button.appendChild( document.createTextNode( '[' ) );
Button.appendChild( ButtonLink );
Button.appendChild( document.createTextNode( ']' ) );

var Header = Tables[i].getElementsByTagName( 'tr' )[0].getElementsByTagName( 'th' )[0];
/* only add button and increment count if there is a header row to work with */
if (Header) {
Header.insertBefore( Button, Header.childNodes[0] );
tableIndex++;
}
}
}

for ( i = 0; i < tableIndex; i++ ) {
if ( hasClass( NavigationBoxes[i], 'collapsed' ) || ( tableIndex >= autoCollapse && hasClass( NavigationBoxes[i], 'autocollapse' ) ) ) {
collapseTable( i );
}
}
}

$( createCollapseButtons );

MediaWiki:Common.js - Revision history

Guy: Hopefully this works - adding collapsible table functionality