User:BrandonXLF/AJAXUndo.js References

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/*** AJAX Undo ***/



// Adds a button to undo changes using AJAX to history pages

// Documentation at [[en:w:User:BrandonXLF/AJAXUndo]]

// By [[en:w:User:BrandonXLF]]



$(function() {

	if (mw.config.get('wgAction') != 'history') return;



	function undo(undoId, undoafter) {

		return new mw.Api().postWithEditToken({

			action: 'edit',

			undo: undoId,

			undoafter: undoafter,

			title: mw.config.get('wgPageName'),

		}).then(

			function() {

				mw.notify('Edit undone successfully! Reloading...');

				location.reload();

			},

			function(_, data) {

				mw.notify(new mw.Api().getErrorMessage(data), {type: 'error'});

			}

		);

	}



	$('.mw-history-undo').parent().after(

		$('<span>').append(

			$('<a>')

				.text('ajax undo')

				.click(function() {

					var el = $(this),

						undoLink = el

							.closest('.mw-changeslist-links')

							.find('.mw-history-undo a')

							.attr('href');



					el.addClass('ajax-undo-loading');



					undo(

						undoLink.match(/undo=([0-9]+)/)[1],

						undoLink.match(/undoafter=([0-9]+)/)[1

					).always(function() {

						el.removeClass('ajax-undo-loading');

					});

				})

		)

	);



	mw.loader.addStyleTag(

		'@keyframes ajax-undo-loading {' +

		'0%, 100% {content: " ⡁"} 16% {content: " ⡈"} 33% {content: " ⠔"} 50% {content: " ⠒"} 66% {content: " ⠢"} 83% {content: " ⢁"}}' +

		'.ajax-undo-loading::after {white-space: pre; content: ""; animation: ajax-undo-loading 0.5s infinite}'

	);

});