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User:Alexiscoutinho/sandbox.js

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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(); } );