function unmakeCollapsible( $collapsibleContent ) {
$collapsibleContent.each( function () {
var $collapsible, collapsibleId, $customToggles;
$collapsible = $( this );
collapsibleId = $collapsible.attr( 'id' ) || '';
if ( collapsibleId.indexOf( 'mw-customcollapsible-' ) === 0 ) {
collapsibleId = $.escapeSelector( collapsibleId );
$customToggles = $( '.' + collapsibleId.replace( 'mw-customcollapsible', 'mw-customtoggle' ) )
.removeClass( 'mw-customtoggle' );
} else {
return;
}
$collapsible.removeClass( 'mw-made-collapsible' ).removeData( 'mw-made-collapsible' );
$customToggles.off( 'click.mw-collapsible keypress.mw-collapsible' )
.removeAttr( 'aria-expanded' )
.removeAttr( 'tabindex' );
if ( $collapsible.hasClass( 'mw-collapsed' ) ) {
$collapsible.data( 'mw-collapsible' ).expand();
$collapsible.addClass( 'mw-collapsed' );
}
$collapsible.removeData( 'mw-collapsible' );
} );
}
function fn( $collapsibleContent ) {
unmakeCollapsible( $collapsibleContent );
/**
* Handler for a click on a collapsible toggler.
*
* @private
* @param {jQuery} $collapsible
* @param {string} action The action this function will take ('expand' or 'collapse').
* @param {jQuery|null} [$defaultToggle]
* @param {Object|undefined} [options]
*/
function toggleElement( $collapsible, action, $defaultToggle, options ) {
var $collapsibleContent, $containers, hookCallback;
options = options || {};
// Validate parameters
// $collapsible must be an instance of jQuery
if ( !$collapsible.jquery ) {
return;
}
if ( action !== 'expand' && action !== 'collapse' ) {
// action must be string with 'expand' or 'collapse'
return;
}
if ( $defaultToggle === undefined ) {
$defaultToggle = null;
}
// Trigger a custom event to allow callers to hook to the collapsing/expanding,
// allowing the module to be testable, and making it possible to
// e.g. implement persistence via cookies
$collapsible.trigger(
action === 'expand' ? 'beforeExpand.mw-collapsible' : 'beforeCollapse.mw-collapsible',
{ toggle: $defaultToggle }
);
hookCallback = function () {
$collapsible.trigger(
action === 'expand' ? 'afterExpand.mw-collapsible' : 'afterCollapse.mw-collapsible',
{ toggle: $defaultToggle }
);
};
// Handle different kinds of elements
if ( !options.plainMode && $collapsible.is( 'table' ) ) {
// Tables
// If there is a caption, hide all rows; otherwise, only hide body rows
if ( $collapsible.find( '> caption' ).length ) {
$containers = $collapsible.find( '> * > tr' );
} else {
$containers = $collapsible.find( '> tbody > tr' );
}
if ( $defaultToggle ) {
// Exclude table row containing togglelink
$containers = $containers.not( $defaultToggle.closest( 'tr' ) );
}
} else if ( !options.plainMode && ( $collapsible.is( 'ul' ) || $collapsible.is( 'ol' ) ) ) {
// Lists
$containers = $collapsible.find( '> li' );
if ( $defaultToggle ) {
// Exclude list-item containing togglelink
$containers = $containers.not( $defaultToggle.parent() );
}
} else {
// Everything else: <div>, <p> etc.
$collapsibleContent = $collapsible.find( '> .mw-collapsible-content' );
// If a collapsible-content is defined, act on it
if ( !options.plainMode && $collapsibleContent.length ) {
$containers = $collapsibleContent;
// Otherwise assume this is a customcollapse with a remote toggle
// .. and there is no collapsible-content because the entire element should be toggled
} else {
$containers = $collapsible;
}
}
$containers.toggle( action === 'expand' );
hookCallback();
}
/**
* Handle clicking/keypressing on the collapsible element toggle and other
* situations where a collapsible element is toggled (e.g. the initial
* toggle for collapsed ones).
*
* @private
* @param {jQuery} $toggle the clickable toggle itself
* @param {jQuery} $collapsible the collapsible element
* @param {jQuery.Event|null} e either the event or null if unavailable
* @param {Object|undefined} options
*/
function togglingHandler( $toggle, $collapsible, e, options ) {
var wasCollapsed, collapseText, expandText, $textContainer;
options = options || {};
if ( e ) {
if (
e.type === 'click' &&
e.target.nodeName.toLowerCase() === 'a' &&
$( e.target ).attr( 'href' )
) {
// Don't fire if a link was clicked (for premade togglers)
return;
} else if ( e.type === 'keypress' && e.which !== 13 && e.which !== 32 ) {
// Only handle keypresses on the "Enter" or "Space" keys
return;
} else {
e.preventDefault();
e.stopPropagation();
}
}
// This allows the element to be hidden on initial toggle without fiddling with the class
if ( options.wasCollapsed !== undefined ) {
wasCollapsed = options.wasCollapsed;
} else if ( $toggle.hasClass( 'mw-partialtoggle' ) ) {
wasCollapsed = !$toggle.hasClass( 'mw-collapsible-toggle-expanded' );
} else {
// eslint-disable-next-line no-jquery/no-class-state
wasCollapsed = $collapsible.hasClass( 'mw-collapsed' );
}
// Toggle the state of the collapsible element (that is, expand or collapse)
$collapsible.toggleClass( 'mw-collapsed', !wasCollapsed );
// Toggle the mw-collapsible-toggle classes, if requested (for default and premade togglers by default)
if ( options.toggleClasses ) {
$toggle
.toggleClass( 'mw-collapsible-toggle-collapsed', !wasCollapsed )
.toggleClass( 'mw-collapsible-toggle-expanded', wasCollapsed );
}
// Toggle `aria-expanded` attribute, if requested (for default and premade togglers by default).
if ( options.toggleARIA ) {
$toggle.attr( 'aria-expanded', wasCollapsed ? 'true' : 'false' );
}
// Toggle the text ("Show"/"Hide") within elements tagged with mw-collapsible-text
if ( options.toggleText ) {
collapseText = options.toggleText.collapseText;
expandText = options.toggleText.expandText;
$textContainer = $toggle.find( '.mw-collapsible-text' );
if ( $textContainer.length ) {
$textContainer.text( wasCollapsed ? collapseText : expandText );
}
}
// And finally toggle the element state itself
toggleElement( $collapsible, wasCollapsed ? 'expand' : 'collapse', $toggle, options );
}
/**
* Enable collapsible-functionality on all elements in the collection.
*
* - Will prevent binding twice to the same element.
* - Initial state is expanded by default, this can be overridden by adding class
* "mw-collapsed" to the "mw-collapsible" element.
* - Elements made collapsible have jQuery data "mw-made-collapsible" set to true.
* - The inner content is wrapped in a "div.mw-collapsible-content" (except for tables and lists).
*
* @param {Object} [options]
* @param {boolean} [options.toggleClasses=true] Whether to toggle the 'mw-collapsible-toggle'
* classes ('mw-collapsible-toggle-collapsed' or '...-expanded'). Applies to non-custom toggles.
* @param {boolean} [options.toggleARIA=true] Whether to toggle the 'aria-expanded' attribute.
* Applies to non-custom toggles.
* @param {boolean} [options.toggleText=true] Whether to toggle the text ("Show"/"Hide") within
* elements tagged with 'mw-collapsible-text'.
* @param {string} [options.collapseText] Text used for the toggler, when clicking it would
* collapse the element. Default: the 'data-collapsetext' attribute of the
* collapsible element or the content of 'collapsible-collapse' message.
* @param {string} [options.expandText] Text used for the toggler, when clicking it would
* expand the element. Default: the 'data-expandtext' attribute of the
* collapsible element or the content of 'collapsible-expand' message.
* @param {boolean} [options.collapsed] Whether to collapse immediately. By default
* collapse only if the element has the 'mw-collapsed' class.
* @param {jQuery} [options.$customToggles] Elements to be used as togglers
* for this collapsible element. By default, if the collapsible element
* has an id attribute like 'mw-customcollapsible-XXX', elements with a
* *class* of 'mw-customtoggle-XXX' are made togglers for it.
* @param {boolean} [options.plainMode=false] Whether to use a "plain mode" when making the
* element collapsible - that is, hide entire tables and lists (instead
* of hiding only all rows but first of tables, and hiding each list
* item separately for lists) and don't wrap other elements in
* div.mw-collapsible-content. May only be used with custom togglers.
* @return {jQuery}
* @chainable
*/
$.fn.makeCollapsible = function ( options ) {
var onOffTogglesData = [], partialTogglesData = [];
options = options || {};
this.each( function () {
var $collapsible, collapsibleId, $customToggles, actionHandler, $toggle;
// Ensure class "mw-collapsible" is present in case .makeCollapsible()
// is called on element(s) that don't have it yet.
$collapsible = $( this ).addClass( 'mw-collapsible' );
// Return if it has been enabled already.
if ( $collapsible.data( 'mw-made-collapsible' ) ) {
return;
} else {
// Let CSS know that it no longer needs to worry about flash of unstyled content.
// This will allow mediawiki.makeCollapsible.styles to disable temporary pseudo elements, that
// are needed to avoid a flash of unstyled content.
$collapsible.addClass( 'mw-made-collapsible' ).data( 'mw-made-collapsible', true );
}
// Check if this element has custom positions for the toggle links
// (ie. outside the container or deeper inside the tree)
if ( options.$customToggles ) {
$customToggles = $( options.$customToggles );
} else {
collapsibleId = $collapsible.attr( 'id' ) || '';
if ( collapsibleId.indexOf( 'mw-customcollapsible-' ) === 0 ) {
collapsibleId = $.escapeSelector( collapsibleId );
$customToggles = $( '.' + collapsibleId.replace( 'mw-customcollapsible', 'mw-customtoggle' ) )
.addClass( 'mw-customtoggle' );
}
}
if ( $customToggles && $customToggles.length ) {
// Store information about the scope of each on-off and partial toggle to aid its and others' state handling
$customToggles.each( function () {
var $customToggle = $( this ), data;
if ( $customToggle.hasClass( 'mw-onofftoggle' ) ) {
data = onOffTogglesData.find( ( onOffToggleData ) => this === onOffToggleData.toggle );
if ( !data ) {
data = { toggle: this, lastCollapsible: undefined };
onOffTogglesData.push( data );
}
data.lastCollapsible = $collapsible;
} else if ( $customToggle.hasClass( 'mw-partialtoggle' ) ) {
data = partialTogglesData.find( ( partialToggleData ) => this === partialToggleData.toggle );
if ( !data ) {
data = { toggle: this, collapsibles: [], affectedToggles: [] };
partialTogglesData.push( data );
}
data.collapsibles.push( $collapsible );
$customToggles.each( function () {
if ( data.affectedToggles.every( ( $affectedToggle ) => this !== $affectedToggle.get( 0 ) ) ) {
data.affectedToggles.push( $( this ) );
}
} );
}
} );
// Add event handlers to custom togglers
actionHandler = function ( e, opts ) {
var defaultOpts = {};
opts = $.extend( defaultOpts, options, opts );
togglingHandler( $( this ), $collapsible, e, opts );
};
$toggle = $customToggles;
} else {
// If this is not a custom case, do the default: wrap the
// contents and add the toggle link. Different elements are
// treated differently.
var collapseText, expandText, buildDefaultToggleLink, $caption, $firstItem, firstval;
// Use custom text or default?
collapseText = options.collapseText || $collapsible.attr( 'data-collapsetext' ) || mw.msg( 'collapsible-collapse' );
expandText = options.expandText || $collapsible.attr( 'data-expandtext' ) || mw.msg( 'collapsible-expand' );
// Default click/keypress handler and toggle link to use when none is present
actionHandler = function ( e, opts ) {
var defaultOpts = {
toggleClasses: true,
toggleARIA: true,
toggleText: { collapseText: collapseText, expandText: expandText }
};
opts = $.extend( defaultOpts, options, opts );
togglingHandler( $( this ), $collapsible, e, opts );
};
// Default toggle link. Only build it when needed to avoid jQuery memory leaks (event data).
buildDefaultToggleLink = function () {
return $( '<a>' )
.addClass( 'mw-collapsible-text' )
.text( collapseText )
.wrap( '<span class="mw-collapsible-toggle mw-collapsible-toggle-default"></span>' )
.parent()
.attr( {
role: 'button',
tabindex: 0
} );
};
if ( $collapsible.is( 'table' ) ) {
// If the table has a caption, collapse to the caption
// as opposed to the first row
$caption = $collapsible.find( '> caption' );
if ( $caption.length ) {
$toggle = $caption.find( '> .mw-collapsible-toggle' );
// If there is no toggle link, add it to the end of the caption
if ( !$toggle.length ) {
$toggle = buildDefaultToggleLink().appendTo( $caption );
}
} else {
// The toggle-link will be in one of the cells (td or th) of the first row
$firstItem = $collapsible.find( 'tr' ).first().find( 'th, td' );
$toggle = $firstItem.find( '> .mw-collapsible-toggle' );
// If theres no toggle link, add it to the last cell
if ( !$toggle.length ) {
$toggle = buildDefaultToggleLink().prependTo( $firstItem.eq( -1 ) );
}
}
} else if ( $collapsible.parent().is( 'li' ) &&
$collapsible.parent().children( '.mw-collapsible' ).length === 1 &&
$collapsible.find( '> .mw-collapsible-toggle' ).length === 0
) {
// special case of one collapsible in <li> tag
$toggle = buildDefaultToggleLink();
$collapsible.before( $toggle );
} else if ( $collapsible.is( 'ul' ) || $collapsible.is( 'ol' ) ) {
// The toggle-link will be in the first list-item
$firstItem = $collapsible.find( 'li' ).first();
$toggle = $firstItem.find( '> .mw-collapsible-toggle' );
// If theres no toggle link, add it
if ( !$toggle.length ) {
// Make sure the numeral order doesn't get messed up, force the first (soon to be second) item
// to be "1". Except if the value-attribute is already used.
// If no value was set WebKit returns "", Mozilla returns '-1', others return 0, null or undefined.
firstval = $firstItem.prop( 'value' );
if ( firstval === undefined || !firstval || firstval === '-1' || firstval === -1 ) {
$firstItem.prop( 'value', '1' );
}
$toggle = buildDefaultToggleLink();
$toggle.wrap( '<li class="mw-collapsible-toggle-li"></li>' ).parent().prependTo( $collapsible );
}
} else { // <div>, <p> etc.
// If a direct child .content-wrapper does not exists, create it
if ( !$collapsible.find( '> .mw-collapsible-content' ).length ) {
$collapsible.wrapInner( '<div class="mw-collapsible-content"></div>' );
}
// The toggle-link will be the first child of the element
$toggle = $collapsible.find( '> .mw-collapsible-toggle' );
// If theres no toggle link, add it
if ( !$toggle.length ) {
$toggle = buildDefaultToggleLink().prependTo( $collapsible );
}
}
}
// Attach event handlers to togglelink(s)
$toggle.on( 'click.mw-collapsible keypress.mw-collapsible', actionHandler ).attr( 'tabindex', 0 );
$collapsible.data( 'mw-collapsible', {
collapse: function () {
actionHandler.call( $toggle.get( 0 ), null, { wasCollapsed: false } );
},
expand: function () {
actionHandler.call( $toggle.get( 0 ), null, { wasCollapsed: true } );
},
toggle: function () {
actionHandler.call( $toggle.get( 0 ), null, null );
}
} );
// Initial state
// eslint-disable-next-line no-jquery/no-class-state
if ( options.collapsed || $collapsible.hasClass( 'mw-collapsed' ) ) {
// One toggler can hook to multiple elements, and one element can have
// multiple togglers. This is the sanest way to handle that.
$collapsible.data( 'mw-collapsible' ).collapse();
} else if ( !$customToggles || !$customToggles.length ) {
if ( options.toggleClasses !== false ) {
$toggle.addClass( 'mw-collapsible-toggle-expanded' );
}
if ( options.toggleARIA !== false ) {
$toggle.attr( 'aria-expanded', 'true' );
}
}
} );
// Only one readyHandler and update function per special toggle, so attach them outside the $collapsibleContent loop
onOffTogglesData.forEach( function ( onOffToggleData, key ) {
var toggle, $lastCollapsible, $onOffToggle, readyHandler;
toggle = onOffToggleData.toggle;
$lastCollapsible = onOffToggleData.lastCollapsible;
$onOffToggle = $( toggle );
// On-Off toggle state flipping must only happen once per click, preferably after the last collapsible toggling
readyHandler = function ( e, opts ) {
// Check if the toggle of this handler was the one interacted with to update the correct toggle.
// This is necessary as multiple toggles can have the same last collapsible, which calls this handler.
if ( toggle === opts.toggle.get( 0 ) ) {
$onOffToggle.data( 'mw-customtoggle' ).update();
}
}
$lastCollapsible.on( 'afterExpand.mw-collapsible afterCollapse.mw-collapsible', readyHandler );
function updateToggle( $onOffToggle ) {
$onOffToggle
.toggleClass( 'mw-collapsible-toggle-on' )
.toggleClass( 'mw-collapsible-toggle-off' );
}
$onOffToggle.data( 'mw-customtoggle', {
update: function () {
updateToggle( $onOffToggle );
}
} );
// Treat initial state
if ( $onOffToggle.hasClass( 'mw-collapsible-toggle-on' ) ) {
$onOffToggle.removeClass( 'mw-collapsible-toggle-off' );
} else {
$onOffToggle.addClass( 'mw-collapsible-toggle-off' );
}
} );
partialTogglesData.forEach( function ( partialToggleData, key ) {
var toggle, collapsibles, affectedToggles, $partialToggle, readyHandler;
toggle = partialToggleData.toggle;
collapsibles = partialToggleData.collapsibles;
affectedToggles = partialToggleData.affectedToggles;
$partialToggle = $( toggle );
// Since the partial toggling behavior depends on the active toggle's state, not only must the affected
// partial toggles update once, but they must do it after all affected collapsibles have completed toggling.
readyHandler = function ( e, opts ) {
if ( toggle === opts.toggle.get( 0 ) ) {
affectedToggles.forEach( function ( $affectedToggle, key ) {
$affectedToggle.data( 'mw-customtoggle' ).update();
} );
}
}
collapsibles[ collapsibles.length - 1 ].on( 'afterExpand.mw-collapsible afterCollapse.mw-collapsible', readyHandler );
function updateToggle( $partialToggle ) {
var hasCollapsed, hasExpanded;
hasCollapsed = collapsibles.some( ( $collapsible ) => $collapsible.hasClass( 'mw-collapsed' ) );
hasExpanded = collapsibles.some( ( $collapsible ) => !$collapsible.hasClass( 'mw-collapsed' ) );
if ( hasCollapsed && hasExpanded ) {
$partialToggle
.removeClass( 'mw-collapsible-toggle-collapsed' )
.addClass ( 'mw-collapsible-toggle-partial' )
.removeClass( 'mw-collapsible-toggle-expanded' );
} else if ( hasCollapsed ) {
$partialToggle
.addClass ( 'mw-collapsible-toggle-collapsed' )
.removeClass( 'mw-collapsible-toggle-partial' )
.removeClass( 'mw-collapsible-toggle-expanded' );
} else {
$partialToggle
.removeClass( 'mw-collapsible-toggle-collapsed' )
.removeClass( 'mw-collapsible-toggle-partial' )
.addClass ( 'mw-collapsible-toggle-expanded' );
}
}
$partialToggle.data( 'mw-customtoggle', {
update: function () {
updateToggle( $partialToggle );
}
} );
// Determine the initial state of each partial toggle
$partialToggle.data( 'mw-customtoggle' ).update();
} );
/**
* Fired after collapsible content has been initialized
*
* This gives an option to modify the collapsible behavior.
*
* @event wikipage_collapsibleContent
* @member mw.hook
* @param {jQuery} $content All the elements that have been made collapsible
*/
mw.hook( 'wikipage.collapsibleContent' ).fire( this );
return this;
};
mw.hook( 'wikipage.collapsibleContent2' ).fire( $collapsibleContent );
}
mw.hook( 'wikipage.collapsibleContent' ).add( fn );
mw.hook( 'wikipage.collapsibleContent2' )
.add( function ( $collapsibleContent ) { mw.hook( 'wikipage.collapsibleContent' ).remove( fn ); } )
.add( function ( $collapsibleContent ) { $collapsibleContent.makeCollapsible(); } );
