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