// <nowiki> /**  * morebits.js  * ===========  * Una libreria piena di un sacco di bontà per gli script utente delle wiki MediaWiki.  *  * Le funzioni principali sono:  *   - Morebits.quickForm classe - genera al volo i moduli HTML  *   - Morebits.wiki.api classe - esegue chiamate alle API di MediaWiki  *   - Morebits.wiki.page classe - modifica le pagine del wiki (modifica, ripristina, cancella, ecc)  *   - Morebits.wikitext classe - contiene alcune utilità per la gestione del wikitesto  *   - Morebits.status classe - un rudimentale visualizzatore di messaggi di stato, utilizzato dalle classi di Morebits.wiki  *   - Morebits.simpleWindow classe - un imballatore per il jQuery UI Dialog con un look personalizzato e caratteristiche extra  *   * Dipendenze:  *   - Il tutto si basa su jQuery. La maggior parte dei wiki dovrebbero fornirlo di default.  *   - Morebits.quickForm, Morebits.simpleWindow, e Morebits.status invocano il file "morebits.css" per il loro stile.  *   - Morebits.simpleWindow invoca jQuery UI Dialog (nome del modulo per ResourceLoader: 'jquery.ui').  *   - Morebits.quickForm tooltip invoca Tipsy (nome del modulo per ResourceLoader: 'jquery.tipsy').  *     Per installazioni esterne, Tipsy è disponibile in http://onehackoranother.com/projects/jquery/tipsy.  *   - Per creare un gadget basato su morebits.js, usa questa sintassi in MediaWiki:Gadgets-definition:  *       * Gadget-Nome[ResourceLoader|dependencies=mediawiki.util,jquery.ui,jquery.tipsy]|morebits.js|morebits.css|Gadget-Nome.js  *   * La maggior parte della roba qui non funziona su IE < 9. È colpa dello script se capita questo.  *   * La libreria morebits è mantenuta dai manutentori di Twinkle.  * Per domande, suggerimenti, aiuto, ecc, fai riferimento a Wikivoyage:Lounge  * Il codice sorgente dell'ultima versione sviluppata è disponibile in https://github.com/azatoth/twinkle/blob/master/morebits.js  *   * Versione: https://en.wikipedia.org/w/index.php?title=MediaWiki:Gadget-morebits.js&oldid=965117053  */   (function (window, document, $) { // Wrap entire file with anonymous function  var Morebits = {}; window.Morebits = Morebits;  // allow global access    /**  * **************** Morebits.userIsInGroup() ****************  * Simple helper function to see what groups a user might belong  * @param {string} group  eg. `sysop`, `extendedconfirmed`, etc  * @returns {boolean}  */ Morebits.userIsInGroup = function (group) { 	return mw.config.get('wgUserGroups').indexOf(group) !== -1; }; // Used a lot Morebits.userIsSysop = Morebits.userIsInGroup('sysop');    /**  * **************** Morebits.sanitizeIPv6() ****************  * JavaScript translation of the MediaWiki core function IP::sanitizeIP() in  * includes/utils/IP.php.  * Converts an IPv6 address to the canonical form stored and used by MediaWiki.  * @param {string} address - The IPv6 address  * @returns {string}  */ Morebits.sanitizeIPv6 = function (address) { 	address = address.trim(); 	if (address === '') { 		return null; 	} 	if (!mw.util.isIPv6Address(address)) { 		return address; // nothing else to do for IPv4 addresses or invalid ones 	} 	// Remove any whitespaces, convert to upper case 	address = address.toUpperCase(); 	// Expand zero abbreviations 	var abbrevPos = address.indexOf('::'); 	if (abbrevPos > -1) { 		// We know this is valid IPv6. Find the last index of the 		// address before any CIDR number (e.g. "a:b:c::/24"). 		var CIDRStart = address.indexOf('/'); 		var addressEnd = CIDRStart > -1 ? CIDRStart - 1 : address.length - 1; 		// If the '::' is at the beginning... 		var repeat, extra, pad; 		if (abbrevPos === 0) { 			repeat = '0:'; 			extra = address === '::' ? '0' : ''; // for the address '::' 			pad = 9; // 7+2 (due to '::') 		// If the '::' is at the end... 		} else if (abbrevPos === (addressEnd - 1)) { 			repeat = ':0'; 			extra = ''; 			pad = 9; // 7+2 (due to '::') 		// If the '::' is in the middle... 		} else { 			repeat = ':0'; 			extra = ':'; 			pad = 8; // 6+2 (due to '::') 		} 		var replacement = repeat; 		pad -= address.split(':').length - 1; 		for (var i = 1; i < pad; i++) { 			replacement += repeat; 		} 		replacement += extra; 		address = address.replace('::', replacement); 	} 	// Remove leading zeros from each bloc as needed 	address = address.replace(/(^|:)0+([0-9A-Fa-f]{1,4})/g, '$1$2');  	return address; };    /**  * **************** Morebits.quickForm ****************  * Morebits.quickForm is a class for creation of simple and standard forms without much  * specific coding.  *  * Index to Morebits.quickForm element types:  *  *   select    A combo box (aka drop-down).  *              - Attributes: name, label, multiple, size, list, event, disabled  *   option    An element for a combo box.  *              - Attributes: value, label, selected, disabled  *   optgroup  A group of "option"s.  *              - Attributes: label, list  *   field     A fieldset (aka group box).  *              - Attributes: name, label, disabled  *   checkbox  A checkbox. Must use "list" parameter.  *              - Attributes: name, list, event  *              - Attributes (within list): name, label, value, checked, disabled, event, subgroup  *   radio     A radio button. Must use "list" parameter.  *              - Attributes: name, list, event  *              - Attributes (within list): name, label, value, checked, disabled, event, subgroup  *   input     A text box.  *              - Attributes: name, label, value, size, disabled, required, readonly, maxlength, event  *   dyninput  A set of text boxes with "Remove" buttons and an "Add" button.  *              - Attributes: name, label, min, max, sublabel, value, size, maxlength, event  *   hidden    An invisible form field.  *              - Attributes: name, value  *   header    A level 5 header.  *              - Attributes: label  *   div       A generic placeholder element or label.  *              - Attributes: name, label  *   submit    A submit button. Morebits.simpleWindow moves these to the footer of the dialog.  *              - Attributes: name, label, disabled  *   button    A generic button.  *              - Attributes: name, label, disabled, event  *   textarea  A big, multi-line text box.  *              - Attributes: name, label, value, cols, rows, disabled, required, readonly  *   fragment  A DocumentFragment object.  *              - No attributes, and no global attributes except adminonly  *  * Global attributes: id, className, style, tooltip, extra, adminonly  */  /**  * @constructor  * @param {event} event - Function to execute when form is submitted  * @param {string} [eventType=submit] - Type of the event (default: submit)  */ Morebits.quickForm = function QuickForm(event, eventType) { 	this.root = new Morebits.quickForm.element({ type: 'form', event: event, eventType: eventType }); };  /**  * Renders the HTML output of the quickForm  * @returns {HTMLElement}  */ Morebits.quickForm.prototype.render = function QuickFormRender() { 	var ret = this.root.render(); 	ret.names = {}; 	return ret; };  /**  * Append element to the form  * @param {(Object|Morebits.quickForm.element)} data - a quickform element, or the object with which  * a quickform element is constructed.  * @returns {Morebits.quickForm.element} - same as what is passed to the function  */ Morebits.quickForm.prototype.append = function QuickFormAppend(data) { 	return this.root.append(data); };  /**  * @constructor  * @param {Object} data - Object representing the quickform element. See class documentation  * comment for available types and attributes for each.  */ Morebits.quickForm.element = function QuickFormElement(data) { 	this.data = data; 	this.childs = []; 	this.id = Morebits.quickForm.element.id++; };  Morebits.quickForm.element.id = 0;  /**  * Appends an element to current element  * @param {Morebits.quickForm.element} data  A quickForm element or the object required to  * create the quickForm element  * @returns {Morebits.quickForm.element} The same element passed in  */ Morebits.quickForm.element.prototype.append = function QuickFormElementAppend(data) { 	var child; 	if (data instanceof Morebits.quickForm.element) { 		child = data; 	} else { 		child = new Morebits.quickForm.element(data); 	} 	this.childs.push(child); 	return child; };  /**  * Renders the HTML output for the quickForm element  * This should be called without parameters: form.render()  * @returns {HTMLElement}  */ Morebits.quickForm.element.prototype.render = function QuickFormElementRender(internal_subgroup_id) { 	var currentNode = this.compute(this.data, internal_subgroup_id);  	for (var i = 0; i < this.childs.length; ++i) { 		// do not pass internal_subgroup_id to recursive calls 		currentNode[1].appendChild(this.childs[i].render()); 	} 	return currentNode[0]; };  Morebits.quickForm.element.prototype.compute = function QuickFormElementCompute(data, in_id) { 	var node; 	var childContainder = null; 	var label; 	var id = (in_id ? in_id + '_' : '') + 'node_' + this.id; 	if (data.adminonly && !Morebits.userIsSysop) { 		// hell hack alpha 		data.type = 'hidden'; 	}  	var i, current, subnode; 	switch (data.type) { 		case 'form': 			node = document.createElement('form'); 			node.className = 'quickform'; 			node.setAttribute('action', 'javascript:void(0);'); 			if (data.event) { 				node.addEventListener(data.eventType || 'submit', data.event, false); 			} 			break; 		case 'fragment': 			node = document.createDocumentFragment(); 			// fragments can't have any attributes, so just return it straight away 			return [ node, node ]; 		case 'select': 			node = document.createElement('div');  			node.setAttribute('id', 'div_' + id); 			if (data.label) { 				label = node.appendChild(document.createElement('label')); 				label.setAttribute('for', id); 				label.appendChild(document.createTextNode(data.label)); 			} 			var select = node.appendChild(document.createElement('select')); 			if (data.event) { 				select.addEventListener('change', data.event, false); 			} 			if (data.multiple) { 				select.setAttribute('multiple', 'multiple'); 			} 			if (data.size) { 				select.setAttribute('size', data.size); 			} 			if (data.disabled) { 				select.setAttribute('disabled', 'disabled'); 			} 			select.setAttribute('name', data.name);  			if (data.list) { 				for (i = 0; i < data.list.length; ++i) {  					current = data.list[i];  					if (current.list) { 						current.type = 'optgroup'; 					} else { 						current.type = 'option'; 					}  					subnode = this.compute(current); 					select.appendChild(subnode[0]); 				} 			} 			childContainder = select; 			break; 		case 'option': 			node = document.createElement('option'); 			node.values = data.value; 			node.setAttribute('value', data.value); 			if (data.selected) { 				node.setAttribute('selected', 'selected'); 			} 			if (data.disabled) { 				node.setAttribute('disabled', 'disabled'); 			} 			node.setAttribute('label', data.label); 			node.appendChild(document.createTextNode(data.label)); 			break; 		case 'optgroup': 			node = document.createElement('optgroup'); 			node.setAttribute('label', data.label);  			if (data.list) { 				for (i = 0; i < data.list.length; ++i) {  					current = data.list[i]; 					current.type = 'option'; // must be options here  					subnode = this.compute(current); 					node.appendChild(subnode[0]); 				} 			} 			break; 		case 'field': 			node = document.createElement('fieldset'); 			label = node.appendChild(document.createElement('legend')); 			label.appendChild(document.createTextNode(data.label)); 			if (data.name) { 				node.setAttribute('name', data.name); 			} 			if (data.disabled) { 				node.setAttribute('disabled', 'disabled'); 			} 			break; 		case 'checkbox': 		case 'radio': 			node = document.createElement('div'); 			if (data.list) { 				for (i = 0; i < data.list.length; ++i) { 					var cur_id = id + '_' + i; 					current = data.list[i]; 					var cur_div; 					if (current.type === 'header') { 					// inline hack 						cur_div = node.appendChild(document.createElement('h6')); 						cur_div.appendChild(document.createTextNode(current.label)); 						if (current.tooltip) { 							Morebits.quickForm.element.generateTooltip(cur_div, current); 						} 						continue; 					} 					cur_div = node.appendChild(document.createElement('div')); 					subnode = cur_div.appendChild(document.createElement('input')); 					subnode.values = current.value; 					subnode.setAttribute('value', current.value); 					subnode.setAttribute('name', current.name || data.name); 					subnode.setAttribute('type', data.type); 					subnode.setAttribute('id', cur_id);  					if (current.checked) { 						subnode.setAttribute('checked', 'checked'); 					} 					if (current.disabled) { 						subnode.setAttribute('disabled', 'disabled'); 					} 					label = cur_div.appendChild(document.createElement('label')); 					label.appendChild(document.createTextNode(current.label)); 					label.setAttribute('for', cur_id); 					if (current.tooltip) { 						Morebits.quickForm.element.generateTooltip(label, current); 					} 					// styles go on the label, doesn't make sense to style a checkbox/radio 					if (current.style) { 						label.setAttribute('style', current.style); 					}  					var event; 					if (current.subgroup) { 						var tmpgroup = current.subgroup;  						if (!Array.isArray(tmpgroup)) { 							tmpgroup = [ tmpgroup ]; 						}  						var subgroupRaw = new Morebits.quickForm.element({ 							type: 'div', 							id: id + '_' + i + '_subgroup' 						}); 						$.each(tmpgroup, function(idx, el) { 							var newEl = $.extend({}, el); 							if (!newEl.type) { 								newEl.type = data.type; 							} 							newEl.name = (current.name || data.name) + '.' + newEl.name; 							subgroupRaw.append(newEl); 						});  						var subgroup = subgroupRaw.render(cur_id); 						subgroup.className = 'quickformSubgroup'; 						subnode.subgroup = subgroup; 						subnode.shown = false;  						event = function(e) { 							if (e.target.checked) { 								e.target.parentNode.appendChild(e.target.subgroup); 								if (e.target.type === 'radio') { 									var name = e.target.name; 									if (e.target.form.names[name] !== undefined) { 										e.target.form.names[name].parentNode.removeChild(e.target.form.names[name].subgroup); 									} 									e.target.form.names[name] = e.target; 								} 							} else { 								e.target.parentNode.removeChild(e.target.subgroup); 							} 						}; 						subnode.addEventListener('change', event, true); 						if (current.checked) { 							subnode.parentNode.appendChild(subgroup); 						} 					} else if (data.type === 'radio') { 						event = function(e) { 							if (e.target.checked) { 								var name = e.target.name; 								if (e.target.form.names[name] !== undefined) { 									e.target.form.names[name].parentNode.removeChild(e.target.form.names[name].subgroup); 								} 								delete e.target.form.names[name]; 							} 						}; 						subnode.addEventListener('change', event, true); 					} 					// add users' event last, so it can interact with the subgroup 					if (data.event) { 						subnode.addEventListener('change', data.event, false); 					} else if (current.event) { 						subnode.addEventListener('change', current.event, true); 					} 				} 			} 			break; 		case 'input': 			node = document.createElement('div'); 			node.setAttribute('id', 'div_' + id);  			if (data.label) { 				label = node.appendChild(document.createElement('label')); 				label.appendChild(document.createTextNode(data.label)); 				label.setAttribute('for', data.id || id); 			}  			subnode = node.appendChild(document.createElement('input')); 			if (data.value) { 				subnode.setAttribute('value', data.value); 			} 			subnode.setAttribute('name', data.name); 			subnode.setAttribute('type', 'text'); 			if (data.size) { 				subnode.setAttribute('size', data.size); 			} 			if (data.disabled) { 				subnode.setAttribute('disabled', 'disabled'); 			} 			if (data.required) { 				subnode.setAttribute('required', 'required'); 			} 			if (data.readonly) { 				subnode.setAttribute('readonly', 'readonly'); 			} 			if (data.maxlength) { 				subnode.setAttribute('maxlength', data.maxlength); 			} 			if (data.event) { 				subnode.addEventListener('keyup', data.event, false); 			} 			childContainder = subnode; 			break; 		case 'dyninput': 			var min = data.min || 1; 			var max = data.max || Infinity;  			node = document.createElement('div');  			label = node.appendChild(document.createElement('h5')); 			label.appendChild(document.createTextNode(data.label));  			var listNode = node.appendChild(document.createElement('div'));  			var more = this.compute({ 				type: 'button', 				label: 'more', 				disabled: min >= max, 				event: function(e) { 					var new_node = new Morebits.quickForm.element(e.target.sublist); 					e.target.area.appendChild(new_node.render());  					if (++e.target.counter >= e.target.max) { 						e.target.setAttribute('disabled', 'disabled'); 					} 					e.stopPropagation(); 				} 			});  			node.appendChild(more[0]); 			var moreButton = more[1];  			var sublist = { 				type: '_dyninput_element', 				label: data.sublabel || data.label, 				name: data.name, 				value: data.value, 				size: data.size, 				remove: false, 				maxlength: data.maxlength, 				event: data.event 			};  			for (i = 0; i < min; ++i) { 				var elem = new Morebits.quickForm.element(sublist); 				listNode.appendChild(elem.render()); 			} 			sublist.remove = true; 			sublist.morebutton = moreButton; 			sublist.listnode = listNode;  			moreButton.sublist = sublist; 			moreButton.area = listNode; 			moreButton.max = max - min; 			moreButton.counter = 0; 			break; 		case '_dyninput_element': // Private, similar to normal input 			node = document.createElement('div');  			if (data.label) { 				label = node.appendChild(document.createElement('label')); 				label.appendChild(document.createTextNode(data.label)); 				label.setAttribute('for', id); 			}  			subnode = node.appendChild(document.createElement('input')); 			if (data.value) { 				subnode.setAttribute('value', data.value); 			} 			subnode.setAttribute('name', data.name); 			subnode.setAttribute('type', 'text'); 			if (data.size) { 				subnode.setAttribute('size', data.size); 			} 			if (data.maxlength) { 				subnode.setAttribute('maxlength', data.maxlength); 			} 			if (data.event) { 				subnode.addEventListener('keyup', data.event, false); 			} 			if (data.remove) { 				var remove = this.compute({ 					type: 'button', 					label: 'remove', 					event: function(e) { 						var list = e.target.listnode; 						var node = e.target.inputnode; 						var more = e.target.morebutton;  						list.removeChild(node); 						--more.counter; 						more.removeAttribute('disabled'); 						e.stopPropagation(); 					} 				}); 				node.appendChild(remove[0]); 				var removeButton = remove[1]; 				removeButton.inputnode = node; 				removeButton.listnode = data.listnode; 				removeButton.morebutton = data.morebutton; 			} 			break; 		case 'hidden': 			node = document.createElement('input'); 			node.setAttribute('type', 'hidden'); 			node.values = data.value; 			node.setAttribute('value', data.value); 			node.setAttribute('name', data.name); 			break; 		case 'header': 			node = document.createElement('h5'); 			node.appendChild(document.createTextNode(data.label)); 			break; 		case 'div': 			node = document.createElement('div'); 			if (data.name) { 				node.setAttribute('name', data.name); 			} 			if (data.label) { 				if (!Array.isArray(data.label)) { 					data.label = [ data.label ]; 				} 				var result = document.createElement('span'); 				result.className = 'quickformDescription'; 				for (i = 0; i < data.label.length; ++i) { 					if (typeof data.label[i] === 'string') { 						result.appendChild(document.createTextNode(data.label[i])); 					} else if (data.label[i] instanceof Element) { 						result.appendChild(data.label[i]); 					} 				} 				node.appendChild(result); 			} 			break; 		case 'submit': 			node = document.createElement('span'); 			childContainder = node.appendChild(document.createElement('input')); 			childContainder.setAttribute('type', 'submit'); 			if (data.label) { 				childContainder.setAttribute('value', data.label); 			} 			childContainder.setAttribute('name', data.name || 'submit'); 			if (data.disabled) { 				childContainder.setAttribute('disabled', 'disabled'); 			} 			break; 		case 'button': 			node = document.createElement('span'); 			childContainder = node.appendChild(document.createElement('input')); 			childContainder.setAttribute('type', 'button'); 			if (data.label) { 				childContainder.setAttribute('value', data.label); 			} 			childContainder.setAttribute('name', data.name); 			if (data.disabled) { 				childContainder.setAttribute('disabled', 'disabled'); 			} 			if (data.event) { 				childContainder.addEventListener('click', data.event, false); 			} 			break; 		case 'textarea': 			node = document.createElement('div'); 			node.setAttribute('id', 'div_' + id); 			if (data.label) { 				label = node.appendChild(document.createElement('h5')); 				var labelElement = document.createElement('label'); 				labelElement.textContent = data.label; 				labelElement.setAttribute('for', data.id || id); 				label.appendChild(labelElement); 			} 			subnode = node.appendChild(document.createElement('textarea')); 			subnode.setAttribute('name', data.name); 			if (data.cols) { 				subnode.setAttribute('cols', data.cols); 			} 			if (data.rows) { 				subnode.setAttribute('rows', data.rows); 			} 			if (data.disabled) { 				subnode.setAttribute('disabled', 'disabled'); 			} 			if (data.required) { 				subnode.setAttribute('required', 'required'); 			} 			if (data.readonly) { 				subnode.setAttribute('readonly', 'readonly'); 			} 			if (data.value) { 				subnode.value = data.value; 			} 			childContainder = subnode; 			break; 		default: 			throw new Error('Morebits.quickForm: unknown element type ' + data.type.toString()); 	}  	if (!childContainder) { 		childContainder = node; 	} 	if (data.tooltip) { 		Morebits.quickForm.element.generateTooltip(label || node, data); 	}  	if (data.extra) { 		childContainder.extra = data.extra; 	} 	if (data.style) { 		childContainder.setAttribute('style', data.style); 	} 	if (data.className) { 		childContainder.className = childContainder.className ? 			childContainder.className + ' ' + data.className : 			data.className; 	} 	childContainder.setAttribute('id', data.id || id);  	return [ node, childContainder ]; };  Morebits.quickForm.element.autoNWSW = function() { 	return $(this).offset().top > ($(document).scrollTop() + ($(window).height() / 2)) ? 'sw' : 'nw'; };  /**  * Create a jquery.tipsy-based tooltip.  * @requires jquery.tipsy  * @param {HTMLElement} node - the HTML element beside which a tooltip is to be generated  * @param {Object} data - tooltip-related configuration data  */ Morebits.quickForm.element.generateTooltip = function QuickFormElementGenerateTooltip(node, data) { 	$('<span/>', { 		'class': 'ui-icon ui-icon-help ui-icon-inline morebits-tooltip' 	}).appendTo(node); };   // Some utility methods for manipulating quickForms after their creation: // (None of these work for "dyninput" type fields at present)   /**  * Returns all form elements with a given field name or ID  * @param {HTMLFormElement} form  * @param {string} fieldName - the name or id of the fields  * @returns {HTMLElement[]} - array of matching form elements  */ Morebits.quickForm.getElements = function QuickFormGetElements(form, fieldName) { 	var $form = $(form); 	var $elements = $form.find('[name="' + fieldName + '"]'); 	if ($elements.length > 0) { 		return $elements.toArray(); 	} 	$elements = $form.find('#' + fieldName); 	if ($elements.length > 0) { 		return $elements.toArray(); 	} 	return null; };  /**  * Searches the array of elements for a checkbox or radio button with a certain  * `value` attribute, and returns the first such element. Returns null if not found.  * @param {HTMLInputElement[]} elementArray - array of checkbox or radio elements  * @param {string} value - value to search for  * @returns {HTMLInputElement}  */ Morebits.quickForm.getCheckboxOrRadio = function QuickFormGetCheckboxOrRadio(elementArray, value) { 	var found = $.grep(elementArray, function(el) { 		return el.value === value; 	}); 	if (found.length > 0) { 		return found[0]; 	} 	return null; };  /**  * Returns the <div> containing the form element, or the form element itself  * May not work as expected on checkboxes or radios  * @param {HTMLElement} element  * @returns {HTMLElement}  */ Morebits.quickForm.getElementContainer = function QuickFormGetElementContainer(element) { 	// for divs, headings and fieldsets, the container is the element itself 	if (element instanceof HTMLFieldSetElement || element instanceof HTMLDivElement || 			element instanceof HTMLHeadingElement) { 		return element; 	}  	// for others, just return the parent node 	return element.parentNode; };  /**  * Gets the HTML element that contains the label of the given form element  * (mainly for internal use)  * @param {(HTMLElement|Morebits.quickForm.element)} element  * @returns {HTMLElement}  */ Morebits.quickForm.getElementLabelObject = function QuickFormGetElementLabelObject(element) { 	// for buttons, divs and headers, the label is on the element itself 	if (element.type === 'button' || element.type === 'submit' || 			element instanceof HTMLDivElement || element instanceof HTMLHeadingElement) { 		return element; 	// for fieldsets, the label is the child <legend> element 	} else if (element instanceof HTMLFieldSetElement) { 		return element.getElementsByTagName('legend')[0]; 	// for textareas, the label is the sibling <h5> element 	} else if (element instanceof HTMLTextAreaElement) { 		return element.parentNode.getElementsByTagName('h5')[0]; 	} 	// for others, the label is the sibling <label> element 	return element.parentNode.getElementsByTagName('label')[0]; };  /**  * Gets the label text of the element  * @param {(HTMLElement|Morebits.quickForm.element)} element  * @returns {string}  */ Morebits.quickForm.getElementLabel = function QuickFormGetElementLabel(element) { 	var labelElement = Morebits.quickForm.getElementLabelObject(element);  	if (!labelElement) { 		return null; 	} 	return labelElement.firstChild.textContent; };  /**  * Sets the label of the element to the given text  * @param {(HTMLElement|Morebits.quickForm.element)} element  * @param {string} labelText  * @returns {boolean} true if succeeded, false if the label element is unavailable  */ Morebits.quickForm.setElementLabel = function QuickFormSetElementLabel(element, labelText) { 	var labelElement = Morebits.quickForm.getElementLabelObject(element);  	if (!labelElement) { 		return false; 	} 	labelElement.firstChild.textContent = labelText; 	return true; };  /**  * Stores the element's current label, and temporarily sets the label to the given text  * @param {(HTMLElement|Morebits.quickForm.element)} element  * @param {string} temporaryLabelText  * @returns {boolean} true if succeeded, false if the label element is unavailable  */ Morebits.quickForm.overrideElementLabel = function QuickFormOverrideElementLabel(element, temporaryLabelText) { 	if (!element.hasAttribute('data-oldlabel')) { 		element.setAttribute('data-oldlabel', Morebits.quickForm.getElementLabel(element)); 	} 	return Morebits.quickForm.setElementLabel(element, temporaryLabelText); };  /**  * Restores the label stored by overrideElementLabel  * @param {(HTMLElement|Morebits.quickForm.element)} element  * @returns {boolean} true if succeeded, false if the label element is unavailable  */ Morebits.quickForm.resetElementLabel = function QuickFormResetElementLabel(element) { 	if (element.hasAttribute('data-oldlabel')) { 		return Morebits.quickForm.setElementLabel(element, element.getAttribute('data-oldlabel')); 	} 	return null; };  /**  * Shows or hides a form element plus its label and tooltip  * @param {(HTMLElement|jQuery|string)} element  HTML/jQuery element, or jQuery selector string  * @param {boolean} [visibility] Skip this to toggle visibility  */ Morebits.quickForm.setElementVisibility = function QuickFormSetElementVisibility(element, visibility) { 	$(element).toggle(visibility); };  /**  * Shows or hides the "question mark" icon (which displays the tooltip) next to a form element  * @param {(HTMLElement|jQuery)} element  * @param {boolean} [visibility] Skip this to toggle visibility  */ Morebits.quickForm.setElementTooltipVisibility = function QuickFormSetElementTooltipVisibility(element, visibility) { 	$(Morebits.quickForm.getElementContainer(element)).find('.morebits-tooltip').toggle(visibility); };    /**  * **************** HTMLFormElement ****************  */  /**  * Returns an array containing the values of elements with the given name, that has it's  * checked property set to true. (i.e. a checkbox or a radiobutton is checked), or select  * options that have selected set to true. (don't try to mix selects with radio/checkboxes,  * please)  * Type is optional and can specify if either radio or checkbox (for the event  * that both checkboxes and radiobuttons have the same name.  *  * XXX: Doesn't seem to work reliably across all browsers at the moment. -- see getChecked2  * in twinkleunlink.js, which is better  */ HTMLFormElement.prototype.getChecked = function(name, type) { 	var elements = this.elements[name]; 	if (!elements) { 		// if the element doesn't exists, return null. 		return null; 	} 	var return_array = []; 	var i; 	if (elements instanceof HTMLSelectElement) { 		var options = elements.options; 		for (i = 0; i < options.length; ++i) { 			if (options[i].selected) { 				if (options[i].values) { 					return_array.push(options[i].values); 				} else { 					return_array.push(options[i].value); 				}  			} 		} 	} else if (elements instanceof HTMLInputElement) { 		if (type && elements.type !== type) { 			return []; 		} else if (elements.checked) { 			return [ elements.value ]; 		} 	} else { 		for (i = 0; i < elements.length; ++i) { 			if (elements[i].checked) { 				if (type && elements[i].type !== type) { 					continue; 				} 				if (elements[i].values) { 					return_array.push(elements[i].values); 				} else { 					return_array.push(elements[i].value); 				} 			} 		} 	} 	return return_array; };  /**  * getUnchecked:  *   Does the same as getChecked above, but with unchecked elements.  */  HTMLFormElement.prototype.getUnchecked = function(name, type) { 	var elements = this.elements[name]; 	if (!elements) { 		// if the element doesn't exists, return null. 		return null; 	} 	var return_array = []; 	var i; 	if (elements instanceof HTMLSelectElement) { 		var options = elements.options; 		for (i = 0; i < options.length; ++i) { 			if (!options[i].selected) { 				if (options[i].values) { 					return_array.push(options[i].values); 				} else { 					return_array.push(options[i].value); 				}  			} 		} 	} else if (elements instanceof HTMLInputElement) { 		if (type && elements.type !== type) { 			return []; 		} else if (!elements.checked) { 			return [ elements.value ]; 		} 	} else { 		for (i = 0; i < elements.length; ++i) { 			if (!elements[i].checked) { 				if (type && elements[i].type !== type) { 					continue; 				} 				if (elements[i].values) { 					return_array.push(elements[i].values); 				} else { 					return_array.push(elements[i].value); 				} 			} 		} 	} 	return return_array; };   /**  * **************** RegExp ****************  *  * Escapes a string to be used in a RegExp  * @param {string} text - string to be escaped  * @param {boolean} [space_fix=false] - Set true to replace spaces and underscores with `[ _]` as they are  * often equivalent  * @returns {string} - the escaped text  */ RegExp.escape = function(text, space_fix) { 	text = mw.util.escapeRegExp(text);  	// Special MediaWiki escape - underscore/space are often equivalent 	if (space_fix) { 		text = text.replace(/ |_/g, '[_ ]'); 	}  	return text; };   /**  * **************** String; Morebits.string ****************  */  Morebits.string = { 	// Helper functions to change case of a string 	toUpperCaseFirstChar: function(str) { 		str = str.toString(); 		return str.substr(0, 1).toUpperCase() + str.substr(1); 	}, 	toLowerCaseFirstChar: function(str) { 		str = str.toString(); 		return str.substr(0, 1).toLowerCase() + str.substr(1); 	},  	/** 	 * Gives an array of substrings of `str` starting with `start` and 	 * ending with `end`, which is not in `skiplist` 	 * @param {string} str 	 * @param {string} start 	 * @param {string} end 	 * @param {(string[]|string)} [skiplist] 	 * @returns {String[]} 	 */ 	splitWeightedByKeys: function(str, start, end, skiplist) { 		if (start.length !== end.length) { 			throw new Error('start marker and end marker must be of the same length'); 		} 		var level = 0; 		var initial = null; 		var result = []; 		if (!Array.isArray(skiplist)) { 			if (skiplist === undefined) { 				skiplist = []; 			} else if (typeof skiplist === 'string') { 				skiplist = [ skiplist ]; 			} else { 				throw new Error('non-applicable skiplist parameter'); 			} 		} 		for (var i = 0; i < str.length; ++i) { 			for (var j = 0; j < skiplist.length; ++j) { 				if (str.substr(i, skiplist[j].length) === skiplist[j]) { 					i += skiplist[j].length - 1; 					continue; 				} 			} 			if (str.substr(i, start.length) === start) { 				if (initial === null) { 					initial = i; 				} 				++level; 				i += start.length - 1; 			} else if (str.substr(i, end.length) === end) { 				--level; 				i += end.length - 1; 			} 			if (!level && initial !== null) { 				result.push(str.substring(initial, i + 1)); 				initial = null; 			} 		}  		return result; 	},  	/** 	 * Formats freeform "reason" (from a textarea) for deletion/other templates 	 * that are going to be substituted, (e.g. PROD, XFD, RPP) 	 * @param {string} str 	 * @returns {string} 	 */ 	formatReasonText: function(str) { 		var result = str.toString().trim(); 		var unbinder = new Morebits.unbinder(result); 		unbinder.unbind('<no' + 'wiki>', '</no' + 'wiki>'); 		unbinder.content = unbinder.content.replace(/\|/g, '{{subst:!}}'); 		return unbinder.rebind(); 	},  	/** 	 * Like `String.prototype.replace()`, but escapes any dollar signs in the replacement string. 	 * Useful when the the replacement string is arbitrary, such as a username or freeform user input, 	 * and could contain dollar signs. 	 * @param {string} string - text in which to replace 	 * @param {(string|RegExp)} pattern 	 * @param {string} replacement 	 * @returns {string} 	 */ 	safeReplace: function morebitsStringSafeReplace(string, pattern, replacement) { 		return string.replace(pattern, replacement.replace(/\$/g, '$$$$')); 	} };   /**  * **************** Morebits.array ****************  */  Morebits.array = { 	/** 	 * @returns {Array} a copy of the array with duplicates removed 	 */ 	uniq: function(arr) { 		if (!Array.isArray(arr)) { 			throw 'A non-array object passed to Morebits.array.uniq'; 		} 		var result = []; 		for (var i = 0; i < arr.length; ++i) { 			var current = arr[i]; 			if (result.indexOf(current) === -1) { 				result.push(current); 			} 		} 		return result; 	},  	/** 	 * @returns {Array} a copy of the array with the first instance of each value 	 * removed; subsequent instances of those values (duplicates) remain 	 */ 	dups: function(arr) { 		if (!Array.isArray(arr)) { 			throw 'A non-array object passed to Morebits.array.dups'; 		} 		var uniques = []; 		var result = []; 		for (var i = 0; i < arr.length; ++i) { 			var current = arr[i]; 			if (uniques.indexOf(current) === -1) { 				uniques.push(current); 			} else { 				result.push(current); 			} 		} 		return result; 	},   	/** 	 * Break up an array into smaller arrays. 	 * @param {Array} arr 	 * @param {number} size - Size of each chunk (except the last, which could be different) 	 * @returns {Array} an array of these smaller arrays 	 */ 	chunk: function(arr, size) { 		if (!Array.isArray(arr)) { 			throw 'A non-array object passed to Morebits.array.chunk'; 		} 		if (typeof size !== 'number' || size <= 0) { // pretty impossible to do anything :) 			return [ arr ]; // we return an array consisting of this array. 		} 		var result = []; 		var current; 		for (var i = 0; i < arr.length; ++i) { 			if (i % size === 0) { // when 'i' is 0, this is always true, so we start by creating one. 				current = []; 				result.push(current); 			} 			current.push(arr[i]); 		} 		return result; 	} };  /**  * ************ Morebits.select2 ***************  * Utilities to enhance select2 menus  * See twinklewarn, twinklexfd, twinkleblock for sample usages  */ Morebits.select2 = {  	matchers: { 		/** 		 * Custom matcher in which if the optgroup name matches, all options in that 		 * group are shown, like in jquery.chosen 		 */ 		optgroupFull: function(params, data) { 			var originalMatcher = $.fn.select2.defaults.defaults.matcher; 			var result = originalMatcher(params, data);  			if (result && params.term && 				data.text.toUpperCase().indexOf(params.term.toUpperCase()) !== -1) { 				result.children = data.children; 			} 			return result; 		},  		/** Custom matcher that matches from the beginning of words only */ 		wordBeginning: function(params, data) { 			var originalMatcher = $.fn.select2.defaults.defaults.matcher; 			var result = originalMatcher(params, data); 			if (!params.term || (result && 				new RegExp('\\b' + mw.util.escapeRegExp(params.term), 'i').test(result.text))) { 				return result; 			} 			return null; 		} 	},  	/** Underline matched part of options */ 	highlightSearchMatches: function(data) { 		var searchTerm = Morebits.select2SearchQuery; 		if (!searchTerm || data.loading) { 			return data.text; 		} 		var idx = data.text.toUpperCase().indexOf(searchTerm.toUpperCase()); 		if (idx < 0) { 			return data.text; 		}  		return $('<span>').append( 			data.text.slice(0, idx), 			$('<span>').css('text-decoration', 'underline').text(data.text.slice(idx, idx + searchTerm.length)), 			data.text.slice(idx + searchTerm.length) 		); 	},  	/** Intercept query as it is happening, for use in highlightSearchMatches */ 	queryInterceptor: function(params) { 		Morebits.select2SearchQuery = params && params.term; 	},  	/** 	 * Open dropdown and begin search when the .select2-selection has focus and a key is pressed 	 * https://github.com/select2/select2/issues/3279#issuecomment-442524147 	 */ 	autoStart: function(ev) { 		if (ev.which < 48) { 			return; 		} 		var target = $(ev.target).closest('.select2-container'); 		if (!target.length) { 			return; 		} 		target = target.prev(); 		target.select2('open'); 		var search = target.data('select2').dropdown.$search || 			target.data('select2').selection.$search; 		search.focus(); 	}  };   /**  * **************** Morebits.pageNameNorm ****************  * Stores a normalized version of the wgPageName variable (underscores converted to spaces).  * For queen/king/whatever and country!  */ Morebits.pageNameNorm = mw.config.get('wgPageName').replace(/_/g, ' ');   /**  * *************** Morebits.pageNameRegex *****************  * For a page name 'Foo bar', returns the string '[Ff]oo bar'  * @param {string} pageName - page name without namespace  * @returns {string}  */ Morebits.pageNameRegex = function(pageName) { 	return '[' + pageName[0].toUpperCase() + pageName[0].toLowerCase() + ']' + pageName.slice(1); };   /**  * **************** Morebits.unbinder ****************  * Used for temporarily hiding a part of a string while processing the rest of it.  *  * eg.  var u = new Morebits.unbinder("Hello world <!-- world --> world");  *      u.unbind('<!--','-->');  *      u.content = u.content.replace(/world/g, 'earth');  *      u.rebind(); // gives "Hello earth <!-- world --> earth"  *  * Text within the 'unbinded' part (in this case, the HTML comment) remains intact  * unbind() can be called multiple times to unbind multiple parts of the string.  *  * Used by Morebits.wikitext.page.commentOutImage  */  /**  * @constructor  * @param {string} string  */ Morebits.unbinder = function Unbinder(string) { 	if (typeof string !== 'string') { 		throw new Error('not a string'); 	} 	this.content = string; 	this.counter = 0; 	this.history = {}; 	this.prefix = '%UNIQ::' + Math.random() + '::'; 	this.postfix = '::UNIQ%'; };  Morebits.unbinder.prototype = { 	/** 	 * @param {string} prefix 	 * @param {string} postfix 	 */ 	unbind: function UnbinderUnbind(prefix, postfix) { 		var re = new RegExp(prefix + '([\\s\\S]*?)' + postfix, 'g'); 		this.content = this.content.replace(re, Morebits.unbinder.getCallback(this)); 	},  	/** @returns {string} The output */ 	rebind: function UnbinderRebind() { 		var content = this.content; 		content.self = this; 		for (var current in this.history) { 			if (Object.prototype.hasOwnProperty.call(this.history, current)) { 				content = content.replace(current, this.history[current]); 			} 		} 		return content; 	}, 	prefix: null, // %UNIQ::0.5955981644938324:: 	postfix: null, // ::UNIQ% 	content: null, // string 	counter: null, // 0++ 	history: null // {} };  Morebits.unbinder.getCallback = function UnbinderGetCallback(self) { 	return function UnbinderCallback(match) { 		var current = self.prefix + self.counter + self.postfix; 		self.history[current] = match; 		++self.counter; 		return current; 	}; };   /**  * **************** Date ****************  * Helper functions to get the month as a string instead of a number  *  * @deprecated Since early 2020 in favor of Morebits.date (#814)  */  Date.monthNames = ['January', 'February', 'March', 'April', 'May', 'June', 	'July', 'August', 'September', 'October', 'November', 'December' ]; Date.monthNamesAbbrev = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']; Date.prototype.getUTCMonthName = function() { 	console.warn("NOTE: Date prototypes from Twinkle's Morebits (such as getUTCMonthName) have been deprecated, use Morebits.date instead"); // eslint-disable-line no-console 	return Date.monthNames[this.getUTCMonth()]; }; Date.prototype.getUTCMonthNameAbbrev = function() { 	console.warn("NOTE: Date prototypes from Twinkle's Morebits (such as getUTCMonthNameAbbrev) have been deprecated, use Morebits.date instead"); // eslint-disable-line no-console 	return Date.monthNamesAbbrev[this.getUTCMonth()]; };   /**  * **************** Morebits.date ****************  */  /**  * @constructor  * Create a date object. MediaWiki timestamp format is also acceptable,  * in addition to everything that JS Date() accepts.  */ Morebits.date = function() { 	var args = Array.prototype.slice.call(arguments);  	if (typeof args[0] === 'string') { 		// Attempt to remove a comma and paren-wrapped timezone, to get MediaWiki timestamps to parse 		// Firefox (at least in 75) seems to be okay with the comma, though 		args[0] = args[0].replace(/(\d\d:\d\d),/, '$1').replace(/\(UTC\)/, 'UTC'); 	} 	this._d = new (Function.prototype.bind.apply(Date, [Date].concat(args))); };  Morebits.date.localeData = { 	months: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'], 	monthsShort: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'], 	days: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'], 	daysShort: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'], 	relativeTimes: { 		thisDay: '[Today at] h:mm A', 		prevDay: '[Yesterday at] h:mm A', 		nextDay: '[Tomorrow at] h:mm A', 		thisWeek: 'dddd [at] h:mm A', 		pastWeek: '[Last] dddd [at] h:mm A', 		other: 'YYYY-MM-DD' 	} };  // Allow native Date.prototype methods to be used on Morebits.date objects Object.getOwnPropertyNames(Date.prototype).forEach(function(func) { 	Morebits.date.prototype[func] = function() { 		return this._d[func].apply(this._d, Array.prototype.slice.call(arguments)); 	}; });  $.extend(Morebits.date.prototype, {  	isValid: function() { 		return !isNaN(this.getTime()); 	},  	/** @param {(Date|Morebits.date)} date */ 	isBefore: function(date) { 		return this.getTime() < date.getTime(); 	}, 	isAfter: function(date) { 		return this.getTime() > date.getTime(); 	},  	/** @return {string} */ 	getUTCMonthName: function() { 		return Morebits.date.localeData.months[this.getUTCMonth()]; 	}, 	getUTCMonthNameAbbrev: function() { 		return Morebits.date.localeData.monthsShort[this.getUTCMonth()]; 	}, 	getMonthName: function() { 		return Morebits.date.localeData.months[this.getMonth()]; 	}, 	getMonthNameAbbrev: function() { 		return Morebits.date.localeData.monthsShort[this.getMonth()]; 	}, 	getUTCDayName: function() { 		return Morebits.date.localeData.days[this.getUTCDay()]; 	}, 	getUTCDayNameAbbrev: function() { 		return Morebits.date.localeData.daysShort[this.getUTCDay()]; 	}, 	getDayName: function() { 		return Morebits.date.localeData.days[this.getDay()]; 	}, 	getDayNameAbbrev: function() { 		return Morebits.date.localeData.daysShort[this.getDay()]; 	},  	/** 	 * Add a given number of minutes, hours, days, months or years to the date. 	 * This is done in-place. The modified date object is also returned, allowing chaining. 	 * @param {number} number - should be an integer 	 * @param {string} unit 	 * @throws {Error} if invalid or unsupported unit is given 	 * @returns {Morebits.date} 	 */ 	add: function(number, unit) { 		// mapping time units with getter/setter function names 		var unitMap = { 			seconds: 'Seconds', 			minutes: 'Minutes', 			hours: 'Hours', 			days: 'Date', 			months: 'Month', 			years: 'FullYear' 		}; 		var unitNorm = unitMap[unit] || unitMap[unit + 's']; // so that both singular and  plural forms work 		if (unitNorm) { 			this['set' + unitNorm](this['get' + unitNorm]() + number); 			return this; 		} 		throw new Error('Invalid unit "' + unit + '": Only ' + Object.keys(unitMap).join(', ') + ' are allowed.'); 	},  	/** 	 * Subtracts a given number of minutes, hours, days, months or years to the date. 	 * This is done in-place. The modified date object is also returned, allowing chaining. 	 * @param {number} number - should be an integer 	 * @param {string} unit 	 * @throws {Error} if invalid or unsupported unit is given 	 * @returns {Morebits.date} 	 */ 	subtract: function(number, unit) { 		return this.add(-number, unit); 	},  	/** 	 * Formats the date into a string per the given format string. 	 * Replacement syntax is a subset of that in moment.js. 	 * @param {string} formatstr 	 * @param {(string|number)} [zone=system] - 'system' (for browser-default time zone), 	 * 'utc' (for UTC), or specify a time zone as number of minutes past UTC. 	 * @returns {string} 	 */ 	format: function(formatstr, zone) { 		var udate = this; 		// create a new date object that will contain the date to display as system time 		if (zone === 'utc') { 			udate = new Morebits.date(this.getTime()).add(this.getTimezoneOffset(), 'minutes'); 		} else if (typeof zone === 'number') { 			// convert to utc, then add the utc offset given 			udate = new Morebits.date(this.getTime()).add(this.getTimezoneOffset() + zone, 'minutes'); 		}  		var pad = function(num) { 			return num < 10 ? '0' + num : num; 		}; 		var h24 = udate.getHours(), m = udate.getMinutes(), s = udate.getSeconds(); 		var D = udate.getDate(), M = udate.getMonth() + 1, Y = udate.getFullYear(); 		var h12 = h24 % 12 || 12, amOrPm = h24 >= 12 ? 'PM' : 'AM'; 		var replacementMap = { 			'HH': pad(h24), 'H': h24, 'hh': pad(h12), 'h': h12, 'A': amOrPm, 			'mm': pad(m), 'm': m, 			'ss': pad(s), 's': s, 			'dddd': udate.getDayName(), 'ddd': udate.getDayNameAbbrev(), 'd': udate.getDay(), 			'DD': pad(D), 'D': D, 			'MMMM': udate.getMonthName(), 'MMM': udate.getMonthNameAbbrev(), 'MM': pad(M), 'M': M, 			'YYYY': Y, 'YY': pad(Y % 100), 'Y': Y 		};  		var unbinder = new Morebits.unbinder(formatstr); // escape stuff between [...] 		unbinder.unbind('\\[', '\\]'); 		unbinder.content = unbinder.content.replace( 			/* Regex notes: 			 * d(d{2,3})? matches exactly 1, 3 or 4 occurrences of 'd' ('dd' is treated as a double match of 'd') 			 * Y{1,2}(Y{2})? matches exactly 1, 2 or 4 occurrences of 'Y' 			 */ 			/H{1,2}|h{1,2}|m{1,2}|s{1,2}|d(d{2,3})?|D{1,2}|M{1,4}|Y{1,2}(Y{2})?|A/g, 			function(match) { 				return replacementMap[match]; 			} 		); 		return unbinder.rebind().replace(/\[(.*?)\]/g, '$1'); 	},  	/** 	 * Gives a readable relative time string such as "Yesterday at 6:43 PM" or "Last Thursday at 11:45 AM". 	 * Similar to calendar in moment.js, but with time zone support. 	 * @param {(string|number)} [zone=system] - 'system' (for browser-default time zone), 	 * 'utc' (for UTC), or specify a time zone as number of minutes past UTC 	 * @returns {string} 	 */ 	calendar: function(zone) { 		// Zero out the hours, minutes, seconds and milliseconds - keeping only the date; 		// find the difference. Note that setHours() returns the same thing as getTime(). 		var dateDiff = (new Date().setHours(0, 0, 0, 0) - 			new Date(this).setHours(0, 0, 0, 0)) / 8.64e7; 		switch (true) { 			case dateDiff === 0: 				return this.format(Morebits.date.localeData.relativeTimes.thisDay, zone); 			case dateDiff === 1: 				return this.format(Morebits.date.localeData.relativeTimes.prevDay, zone); 			case dateDiff > 0 && dateDiff < 7: 				return this.format(Morebits.date.localeData.relativeTimes.pastWeek, zone); 			case dateDiff === -1: 				return this.format(Morebits.date.localeData.relativeTimes.nextDay, zone); 			case dateDiff < 0 && dateDiff > -7: 				return this.format(Morebits.date.localeData.relativeTimes.thisWeek, zone); 			default: 				return this.format(Morebits.date.localeData.relativeTimes.other, zone); 		} 	},  	/** 	 * @returns {RegExp} that matches wikitext section titles such as ==December 2019== or 	 * === Jan 2018 === 	 */ 	monthHeaderRegex: function() { 		return new RegExp('^==+\\s*(?:' + this.getUTCMonthName() + '|' + this.getUTCMonthNameAbbrev() + 			')\\s+' + this.getUTCFullYear() + '\\s*==+', 'mg'); 	},  	/** 	 * Creates a wikitext section header with the month and year. 	 * @param {number} [level=2] - Header level (default 2) 	 * @returns {string} 	 */ 	monthHeader: function(level) { 		level = level || 2; 		var header = Array(level + 1).join('='); // String.prototype.repeat not supported in IE 11 		return header + ' ' + this.getUTCMonthName() + ' ' + this.getUTCFullYear() + ' ' + header; 	}  });   /**  * **************** Morebits.wiki ****************  * Various objects for wiki editing and API access  */ Morebits.wiki = {};  /**  * Determines whether the current page is a redirect or soft redirect  * (fails to detect soft redirects on edit, history, etc. pages)  * @returns {boolean}  */ Morebits.wiki.isPageRedirect = function wikipediaIsPageRedirect() { 	return !!(mw.config.get('wgIsRedirect') || document.getElementById('softredirect')); };    /**  * **************** Morebits.wiki.actionCompleted ****************  *  *    Use of Morebits.wiki.actionCompleted():  *    Every call to Morebits.wiki.api.post() results in the dispatch of  *    an asynchronous callback. Each callback can in turn  *    make an additional call to Morebits.wiki.api.post() to continue a  *    processing sequence. At the conclusion of the final callback  *    of a processing sequence, it is not possible to simply return to the  *    original caller because there is no call stack leading back to  *    the original context. Instead, Morebits.wiki.actionCompleted.event() is  *    called to display the result to the user and to perform an optional  *    page redirect.  *  *    The determination of when to call Morebits.wiki.actionCompleted.event()  *    is managed through the globals Morebits.wiki.numberOfActionsLeft and  *    Morebits.wiki.nbrOfCheckpointsLeft. Morebits.wiki.numberOfActionsLeft is  *    incremented at the start of every Morebits.wiki.api call and decremented  *    after the completion of a callback function. If a callback function  *    does not create a new Morebits.wiki.api object before exiting, it is the  *    final step in the processing chain and Morebits.wiki.actionCompleted.event()  *    will then be called.  *  *    Optionally, callers may use Morebits.wiki.addCheckpoint() to indicate that  *    processing is not complete upon the conclusion of the final callback function.  *    This is used for batch operations. The end of a batch is signaled by calling  *    Morebits.wiki.removeCheckpoint().  */  Morebits.wiki.numberOfActionsLeft = 0; Morebits.wiki.nbrOfCheckpointsLeft = 0;  Morebits.wiki.actionCompleted = function(self) { 	if (--Morebits.wiki.numberOfActionsLeft <= 0 && Morebits.wiki.nbrOfCheckpointsLeft <= 0) { 		Morebits.wiki.actionCompleted.event(self); 	} };  // Change per action wanted Morebits.wiki.actionCompleted.event = function() { 	if (Morebits.wiki.actionCompleted.notice) { 		Morebits.status.actionCompleted(Morebits.wiki.actionCompleted.notice); 	} 	if (Morebits.wiki.actionCompleted.redirect) { 		// if it isn't a URL, make it one. TODO: This breaks on the articles 'http://', 'ftp://', and similar ones. 		if (!(/^\w+:\/\//).test(Morebits.wiki.actionCompleted.redirect)) { 			Morebits.wiki.actionCompleted.redirect = mw.util.getUrl(Morebits.wiki.actionCompleted.redirect); 			if (Morebits.wiki.actionCompleted.followRedirect === false) { 				Morebits.wiki.actionCompleted.redirect += '?redirect=no'; 			} 		} 		window.setTimeout(function() { 			window.location = Morebits.wiki.actionCompleted.redirect; 		}, Morebits.wiki.actionCompleted.timeOut); 	} };  Morebits.wiki.actionCompleted.timeOut = typeof window.wpActionCompletedTimeOut === 'undefined' ? 5000 : window.wpActionCompletedTimeOut; Morebits.wiki.actionCompleted.redirect = null; Morebits.wiki.actionCompleted.notice = null;  Morebits.wiki.addCheckpoint = function() { 	++Morebits.wiki.nbrOfCheckpointsLeft; };  Morebits.wiki.removeCheckpoint = function() { 	if (--Morebits.wiki.nbrOfCheckpointsLeft <= 0 && Morebits.wiki.numberOfActionsLeft <= 0) { 		Morebits.wiki.actionCompleted.event(); 	} };  /**  * **************** Morebits.wiki.api ****************  * An easy way to talk to the MediaWiki API.  */  /**  * In new code, the use of the last 3 parameters should be avoided, instead use setStatusElement() to bind the  * status element (if needed) and use .then() or .catch() on the promise returned by post(), rather than specify  * the onSuccess or onFailure callbacks.  * @constructor  * @param {string} currentAction - The current action (required)  * @param {Object} query - The query (required)  * @param {Function} [onSuccess] - The function to call when request gotten  * @param {Morebits.status} [statusElement] - A Morebits.status object to use for status messages (optional)  * @param {Function} [onError] - The function to call if an error occurs (optional)  */ Morebits.wiki.api = function(currentAction, query, onSuccess, statusElement, onError) { 	this.currentAction = currentAction; 	this.query = query; 	this.query.assert = 'user'; 	this.onSuccess = onSuccess; 	this.onError = onError; 	if (statusElement) { 		this.setStatusElement(statusElement); 	} else { 		this.statelem = new Morebits.status(currentAction); 	} 	if (!query.format) { 		this.query.format = 'xml'; 	} else if (['xml', 'json'].indexOf(query.format) === -1) { 		this.statelem.error('Invalid API format: only xml and json are supported.'); 	} };  Morebits.wiki.api.prototype = { 	currentAction: '', 	onSuccess: null, 	onError: null, 	parent: window,  // use global context if there is no parent object 	query: null, 	response: null, 	responseXML: null,  // use `response` instead; retained for backwards compatibility 	statelem: null,  // this non-standard name kept for backwards compatibility 	statusText: null, // result received from the API, normally "success" or "error" 	errorCode: null, // short text error code, if any, as documented in the MediaWiki API 	errorText: null, // full error description, if any  	/** 	 * Keep track of parent object for callbacks 	 * @param {*} parent      */ 	setParent: function(parent) { 		this.parent = parent; 	},  	/** @param {Morebits.status} statusElement */ 	setStatusElement: function(statusElement) { 		this.statelem = statusElement; 		this.statelem.status(this.currentAction); 	},  	/** 	 * Carries out the request. 	 * @param {Object} callerAjaxParameters Do not specify a parameter unless you really 	 * really want to give jQuery some extra parameters 	 * @returns {promise} - a jQuery promise object that is resolved or rejected with the api object. 	 */ 	post: function(callerAjaxParameters) {  		++Morebits.wiki.numberOfActionsLeft;  		var queryString = $.map(this.query, function(val, i) { 			if (Array.isArray(val)) { 				return encodeURIComponent(i) + '=' + val.map(encodeURIComponent).join('|'); 			} else if (val !== undefined) { 				return encodeURIComponent(i) + '=' + encodeURIComponent(val); 			} 		}).join('&').replace(/^(.*?)(\btoken=[^&]*)&(.*)/, '$1$3&$2'); 		// token should always be the last item in the query string (bug TW-B-0013)  		var ajaxparams = $.extend({}, { 			context: this, 			type: 'POST', 			url: mw.util.wikiScript('api'), 			data: queryString, 			dataType: this.query.format, 			headers: { 				'Api-User-Agent': morebitsWikiApiUserAgent 			} 		}, callerAjaxParameters);  		return $.ajax(ajaxparams).then(  			function onAPIsuccess(response, statusText) { 				this.statusText = statusText; 				this.response = this.responseXML = response; 				if (this.query.format === 'json') { 					this.errorCode = response.error && response.error.code; 					this.errorText = response.error && response.error.info; 				} else { 					this.errorCode = $(response).find('error').attr('code'); 					this.errorText = $(response).find('error').attr('info'); 				}  				if (typeof this.errorCode === 'string') { 					// the API didn't like what we told it, e.g., bad edit token or an error creating a page 					return this.returnError(); 				}  				// invoke success callback if one was supplied 				if (this.onSuccess) { 					// set the callback context to this.parent for new code and supply the API object 					// as the first argument to the callback (for legacy code) 					this.onSuccess.call(this.parent, this); 				} else { 					this.statelem.info('done'); 				}  				Morebits.wiki.actionCompleted();  				return $.Deferred().resolveWith(this.parent, [this]); 			},  			// only network and server errors reach here - complaints from the API itself are caught in success() 			function onAPIfailure(jqXHR, statusText, errorThrown) { 				this.statusText = statusText; 				this.errorThrown = errorThrown; // frequently undefined 				this.errorText = statusText + ' "' + jqXHR.statusText + '" occurred while contacting the API.'; 				return this.returnError(); 			}  		); 	},  	returnError: function() { 		if (this.errorCode === 'badtoken') { 			// TODO: automatically retry after getting a new token 			this.statelem.error('Invalid token. Refresh the page and try again'); 		} else { 			this.statelem.error(this.errorText); 		}  		// invoke failure callback if one was supplied 		if (this.onError) {  			// set the callback context to this.parent for new code and supply the API object 			// as the first argument to the callback for legacy code 			this.onError.call(this.parent, this); 		} 		// don't complete the action so that the error remains displayed  		return $.Deferred().rejectWith(this.parent, [this]); 	},  	getStatusElement: function() { 		return this.statelem; 	},  	getErrorCode: function() { 		return this.errorCode; 	},  	getErrorText: function() { 		return this.errorText; 	},  	getXML: function() { // retained for backwards compatibility, use getResponse() instead 		return this.responseXML; 	},  	getResponse: function() { 		return this.response; 	}  };  // Custom user agent header, used by WMF for server-side logging // See https://lists.wikimedia.org/pipermail/mediawiki-api-announce/2014-November/000075.html var morebitsWikiApiUserAgent = 'morebits.js/2.0 ([[w:WT:TW]])';  /**  * Sets the custom user agent header  * @param {string} ua   User agent  */ Morebits.wiki.api.setApiUserAgent = function(ua) { 	morebitsWikiApiUserAgent = (ua ? ua + ' ' : '') + 'morebits.js/2.0 ([[w:WT:TW]])'; };    /**  * **************** Morebits.wiki.page ****************  * Uses the MediaWiki API to load a page and optionally edit it, move it, etc.  *  * Callers are not permitted to directly access the properties of this class!  * All property access is through the appropriate get___() or set___() method.  *  * Callers should set Morebits.wiki.actionCompleted.notice and Morebits.wiki.actionCompleted.redirect  * before the first call to Morebits.wiki.page.load().  *  * Each of the callback functions takes one parameter, which is a  * reference to the Morebits.wiki.page object that registered the callback.  * Callback functions may invoke any Morebits.wiki.page prototype method using this reference.  *  *  * HIGHLIGHTS:  *  * Constructor: Morebits.wiki.page(pageName, currentAction)  *    pageName - the name of the page, prefixed by the namespace (if any)  *               (for the current page, use mw.config.get('wgPageName'))  *    currentAction - a string describing the action about to be undertaken (optional)  *  * onSuccess and onFailure are callback functions called when the operation is a success or failure  * if enclosed in [brackets], it indicates that it is optional  *  * load(onSuccess, [onFailure]): Loads the text for the page  *  * getPageText(): returns a string containing the text of the page after a successful load()  *  * save([onSuccess], [onFailure]):  Saves the text set via setPageText() for the page.  * Must be preceded by calling load().  *    Warning: Calling save() can result in additional calls to the previous load() callbacks to  *             recover from edit conflicts!  *             In this case, callers must make the same edit to the new pageText and reinvoke save().  *             This behavior can be disabled with setMaxConflictRetries(0).  *  * append([onSuccess], [onFailure]): Adds the text provided via setAppendText() to the end of  * the page. Does not require calling load() first.  *  * prepend([onSuccess], [onFailure]): Adds the text provided via setPrependText() to the start  * of the page. Does not require calling load() first.  *  * move([onSuccess], [onFailure]): Moves a page to another title  *  * patrol(): Patrols a page; ignores errors  *  * triage(): Marks page as reviewed using PageTriage, which implies patrolled; ignores most errors  *  * deletePage([onSuccess], [onFailure]): Deletes a page (for admins only)  *  * undeletePage([onSuccess], [onFailure]): Undeletes a page (for admins only)  *  * protect([onSuccess], [onFailure]): Protects a page  *  * getPageName(): returns a string containing the name of the loaded page, including the namespace  *  * setPageText(pageText) sets the updated page text that will be saved when save() is called  *  * setAppendText(appendText) sets the text that will be appended to the page when append() is called  *  * setPrependText(prependText) sets the text that will be prepended to the page when prepend() is called  *  * setCallbackParameters(callbackParameters)  *    callbackParameters - an object for use in a callback function  *  * getCallbackParameters(): returns the object previous set by setCallbackParameters()  *  *    Callback notes: callbackParameters is for use by the caller only. The parameters  *                    allow a caller to pass the proper context into its callback function.  *                    Callers must ensure that any changes to the callbackParameters object  *                    within a load() callback still permit a proper re-entry into the  *                    load() callback if an edit conflict is detected upon calling save().  *  * getStatusElement(): returns the Status element created by the constructor  *  * exists(): returns true if the page existed on the wiki when it was last loaded  *  * getCurrentID(): returns a string containing the current revision ID of the page  *  * lookupCreation(onSuccess): Retrieves the username and timestamp of page creation  *    onSuccess - callback function which is called when the username and timestamp  *                are found within the callback.  *                The username can be retrieved using the getCreator() function;  *                the timestamp can be retrieved using the getCreationTimestamp() function  *  * getCreator(): returns the user who created the page following lookupCreation()  *  * getCreationTimestamp(): returns an ISOString timestamp of page creation following lookupCreation()  *  */  /**  * Call sequence for common operations (optional final user callbacks not shown):  *  *    Edit current contents of a page (no edit conflict):  *       .load(userTextEditCallback) -> ctx.loadApi.post() -> ctx.loadApi.post.success() ->  *             ctx.fnLoadSuccess() -> userTextEditCallback() -> .save() ->  *             ctx.saveApi.post() -> ctx.loadApi.post.success() -> ctx.fnSaveSuccess()  *  *    Edit current contents of a page (with edit conflict):  *       .load(userTextEditCallback) -> ctx.loadApi.post() -> ctx.loadApi.post.success() ->  *             ctx.fnLoadSuccess() -> userTextEditCallback() -> .save() ->  *             ctx.saveApi.post() -> ctx.loadApi.post.success() -> ctx.fnSaveError() ->  *             ctx.loadApi.post() -> ctx.loadApi.post.success() ->  *             ctx.fnLoadSuccess() -> userTextEditCallback() -> .save() ->  *             ctx.saveApi.post() -> ctx.loadApi.post.success() -> ctx.fnSaveSuccess()  *  *    Append to a page (similar for prepend):  *       .append() -> ctx.loadApi.post() -> ctx.loadApi.post.success() ->  *             ctx.fnLoadSuccess() -> ctx.fnAutoSave() -> .save() ->  *             ctx.saveApi.post() -> ctx.loadApi.post.success() -> ctx.fnSaveSuccess()  *  *    Notes:  *       1. All functions following Morebits.wiki.api.post() are invoked asynchronously  *          from the jQuery AJAX library.  *       2. The sequence for append/prepend could be slightly shortened, but it would require  *          significant duplication of code for little benefit.  */  /**  * @constructor  * @param {string} pageName The name of the page, prefixed by the namespace (if any)  * For the current page, use mw.config.get('wgPageName')  * @param {string} [currentAction] A string describing the action about to be undertaken (optional)  */ Morebits.wiki.page = function(pageName, currentAction) {  	if (!currentAction) { 		currentAction = 'Opening page "' + pageName + '"'; 	}  	/** 	 * Private context variables 	 * 	 * This context is not visible to the outside, thus all the data here 	 * must be accessed via getter and setter functions. 	 */ 	var ctx = { 		// backing fields for public properties 		pageName: pageName, 		pageExists: false, 		editSummary: null, 		callbackParameters: null, 		statusElement: new Morebits.status(currentAction),  		// - edit 		pageText: null, 		editMode: 'all',  // save() replaces entire contents of the page by default 		appendText: null,   // can't reuse pageText for this because pageText is needed to follow a redirect 		prependText: null,  // can't reuse pageText for this because pageText is needed to follow a redirect 		createOption: null, 		minorEdit: false, 		botEdit: false, 		pageSection: null, 		maxConflictRetries: 2, 		maxRetries: 2, 		followRedirect: false, 		watchlistOption: 'nochange', 		creator: null, 		timestamp: null,  		// - revert 		revertOldID: null,  		// - move 		moveDestination: null, 		moveTalkPage: false, 		moveSubpages: false, 		moveSuppressRedirect: false,  		// - protect 		protectEdit: null, 		protectMove: null, 		protectCreate: null, 		protectCascade: false,  		// - creation lookup 		lookupNonRedirectCreator: false,  		// - stabilize (FlaggedRevs) 		flaggedRevs: null,  		// internal status 		pageLoaded: false, 		csrfToken: null, 		loadTime: null, 		lastEditTime: null, 		pageID: null, 		revertCurID: null, 		revertUser: null, 		fullyProtected: false, 		suppressProtectWarning: false, 		conflictRetries: 0, 		retries: 0,  		// callbacks 		onLoadSuccess: null, 		onLoadFailure: null, 		onSaveSuccess: null, 		onSaveFailure: null, 		onLookupCreationSuccess: null, 		onMoveSuccess: null, 		onMoveFailure: null, 		onDeleteSuccess: null, 		onDeleteFailure: null, 		onUndeleteSuccess: null, 		onUndeleteFailure: null, 		onProtectSuccess: null, 		onProtectFailure: null, 		onStabilizeSuccess: null, 		onStabilizeFailure: null,  		// internal objects 		loadQuery: null, 		loadApi: null, 		saveApi: null, 		lookupCreationApi: null, 		moveApi: null, 		moveProcessApi: null, 		patrolApi: null, 		patrolProcessApi: null, 		triageApi: null, 		triageProcessApi: null, 		deleteApi: null, 		deleteProcessApi: null, 		undeleteApi: null, 		undeleteProcessApi: null, 		protectApi: null, 		protectProcessApi: null, 		stabilizeApi: null, 		stabilizeProcessApi: null 	};  	var emptyFunction = function() { };  	/** 	 * Loads the text for the page 	 * @param {Function} onSuccess - callback function which is called when the load has succeeded 	 * @param {Function} [onFailure] - callback function which is called when the load fails (optional) 	 */ 	this.load = function(onSuccess, onFailure) { 		ctx.onLoadSuccess = onSuccess; 		ctx.onLoadFailure = onFailure || emptyFunction;  		// Need to be able to do something after the page loads 		if (!onSuccess) { 			ctx.statusElement.error('Internal error: no onSuccess callback provided to load()!'); 			ctx.onLoadFailure(this); 			return; 		}  		ctx.loadQuery = { 			action: 'query', 			prop: 'info|revisions', 			curtimestamp: '', 			meta: 'tokens', 			type: 'csrf', 			titles: ctx.pageName 			// don't need rvlimit=1 because we don't need rvstartid here and only one actual rev is returned by default 		};  		if (ctx.editMode === 'all') { 			ctx.loadQuery.rvprop = 'content|timestamp';  // get the page content at the same time, if needed 		} else if (ctx.editMode === 'revert') { 			ctx.loadQuery.rvprop = 'timestamp'; 			ctx.loadQuery.rvlimit = 1; 			ctx.loadQuery.rvstartid = ctx.revertOldID; 		}  		if (ctx.followRedirect) { 			ctx.loadQuery.redirects = '';  // follow all redirects 		} 		if (typeof ctx.pageSection === 'number') { 			ctx.loadQuery.rvsection = ctx.pageSection; 		} 		if (Morebits.userIsSysop) { 			ctx.loadQuery.inprop = 'protection'; 		}  		ctx.loadApi = new Morebits.wiki.api('Retrieving page...', ctx.loadQuery, fnLoadSuccess, ctx.statusElement, ctx.onLoadFailure); 		ctx.loadApi.setParent(this); 		ctx.loadApi.post(); 	};  	/** 	 * Saves the text for the page to Wikipedia 	 * Must be preceded by successfully calling load(). 	 * 	 * Warning: Calling save() can result in additional calls to the previous load() callbacks 	 * to recover from edit conflicts! 	 * In this case, callers must make the same edit to the new pageText and reinvoke save(). 	 * This behavior can be disabled with setMaxConflictRetries(0). 	 * @param {Function} [onSuccess] - callback function which is called when the save has 	 * succeeded (optional) 	 * @param {Function} [onFailure] - callback function which is called when the save fails 	 * (optional) 	 */ 	this.save = function(onSuccess, onFailure) { 		ctx.onSaveSuccess = onSuccess; 		ctx.onSaveFailure = onFailure || emptyFunction;  		// are we getting our editing token from mw.user.tokens? 		var canUseMwUserToken = fnCanUseMwUserToken('edit');  		if (!ctx.pageLoaded && !canUseMwUserToken) { 			ctx.statusElement.error('Internal error: attempt to save a page that has not been loaded!'); 			ctx.onSaveFailure(this); 			return; 		} 		if (!ctx.editSummary) { 			ctx.statusElement.error('Internal error: edit summary not set before save!'); 			ctx.onSaveFailure(this); 			return; 		}  		// shouldn't happen if canUseMwUserToken === true 		if (ctx.fullyProtected && !ctx.suppressProtectWarning && 			!confirm('You are about to make an edit to the fully protected page "' + ctx.pageName + 			(ctx.fullyProtected === 'infinity' ? '" (protected indefinitely)' : '" (protection expiring ' + new Morebits.date(ctx.fullyProtected).calendar('utc') + ' (UTC))') + 			'.  \n\nClick OK to proceed with the edit, or Cancel to skip this edit.')) { 			ctx.statusElement.error('Edit to fully protected page was aborted.'); 			ctx.onSaveFailure(this); 			return; 		}  		ctx.retries = 0;  		var query = { 			action: 'edit', 			title: ctx.pageName, 			summary: ctx.editSummary, 			token: canUseMwUserToken ? mw.user.tokens.get('csrfToken') : ctx.csrfToken, 			watchlist: ctx.watchlistOption 		};  		if (typeof ctx.pageSection === 'number') { 			query.section = ctx.pageSection; 		}  		// Set minor edit attribute. If these parameters are present with any value, it is interpreted as true 		if (ctx.minorEdit) { 			query.minor = true; 		} else { 			query.notminor = true;  // force Twinkle config to override user preference setting for "all edits are minor" 		}  		// Set bot edit attribute. If this paramter is present with any value, it is interpreted as true 		if (ctx.botEdit) { 			query.bot = true; 		}  		switch (ctx.editMode) { 			case 'append': 				query.appendtext = ctx.appendText;  // use mode to append to current page contents 				break; 			case 'prepend': 				query.prependtext = ctx.prependText;  // use mode to prepend to current page contents 				break; 			case 'revert': 				query.undo = ctx.revertCurID; 				query.undoafter = ctx.revertOldID; 				if (ctx.lastEditTime) { 					query.basetimestamp = ctx.lastEditTime; // check that page hasn't been edited since it was loaded 				} 				query.starttimestamp = ctx.loadTime; // check that page hasn't been deleted since it was loaded (don't recreate bad stuff) 				break; 			default: // 'all' 				query.text = ctx.pageText; // replace entire contents of the page 				if (ctx.lastEditTime) { 					query.basetimestamp = ctx.lastEditTime; // check that page hasn't been edited since it was loaded 				} 				query.starttimestamp = ctx.loadTime; // check that page hasn't been deleted since it was loaded (don't recreate bad stuff) 				break; 		}  		if (['recreate', 'createonly', 'nocreate'].indexOf(ctx.createOption) !== -1) { 			query[ctx.createOption] = ''; 		}  		if (canUseMwUserToken && ctx.followRedirect) { 			query.redirect = true; 		}  		ctx.saveApi = new Morebits.wiki.api('Saving page...', query, fnSaveSuccess, ctx.statusElement, fnSaveError); 		ctx.saveApi.setParent(this); 		ctx.saveApi.post(); 	};  	/** 	 * Adds the text provided via setAppendText() to the end of the page. 	 * Does not require calling load() first. 	 * @param {Function} [onSuccess] - callback function which is called when the method has succeeded (optional) 	 * @param {Function} [onFailure] - callback function which is called when the method fails (optional) 	 */ 	this.append = function(onSuccess, onFailure) { 		ctx.editMode = 'append';  		if (fnCanUseMwUserToken('edit')) { 			this.save(onSuccess, onFailure); 		} else { 			ctx.onSaveSuccess = onSuccess; 			ctx.onSaveFailure = onFailure || emptyFunction; 			this.load(fnAutoSave, ctx.onSaveFailure); 		} 	};  	/** 	 * Adds the text provided via setPrependText() to the start of the page. 	 * Does not require calling load() first. 	 * @param {Function}  [onSuccess] - callback function which is called when the method has succeeded (optional) 	 * @param {Function}  [onFailure] - callback function which is called when the method fails (optional) 	 */ 	this.prepend = function(onSuccess, onFailure) { 		ctx.editMode = 'prepend';  		if (fnCanUseMwUserToken('edit')) { 			this.save(onSuccess, onFailure); 		} else { 			ctx.onSaveSuccess = onSuccess; 			ctx.onSaveFailure = onFailure || emptyFunction; 			this.load(fnAutoSave, ctx.onSaveFailure); 		} 	};  	/** @returns {string} string containing the name of the loaded page, including the namespace */ 	this.getPageName = function() { 		return ctx.pageName; 	};  	/** @returns {string} string containing the text of the page after a successful load() */ 	this.getPageText = function() { 		return ctx.pageText; 	};  	/** @param {string} pageText - updated page text that will be saved when save() is called */ 	this.setPageText = function(pageText) { 		ctx.editMode = 'all'; 		ctx.pageText = pageText; 	};  	/** @param {string} appendText - text that will be appended to the page when append() is called */ 	this.setAppendText = function(appendText) { 		ctx.editMode = 'append'; 		ctx.appendText = appendText; 	};  	/** @param {string} prependText - text that will be prepended to the page when prepend() is called */ 	this.setPrependText = function(prependText) { 		ctx.editMode = 'prepend'; 		ctx.prependText = prependText; 	};    	// Edit-related setter methods: 	/** @param {string} summary - text of the edit summary that will be used when save() is called */ 	this.setEditSummary = function(summary) { 		ctx.editSummary = summary; 	};  	/** 	 * @param {string} createOption - can take the following four values: 	 *     `recreate`   - create the page if it does not exist, or edit it if it exists. 	 *     `createonly` - create the page if it does not exist, but return an error if it 	 *                    already exists. 	 *     `nocreate`   - don't create the page, only edit it if it already exists. 	 *     null         - create the page if it does not exist, unless it was deleted in the moment 	 *                    between loading the page and saving the edit (default) 	 * 	 */ 	this.setCreateOption = function(createOption) { 		ctx.createOption = createOption; 	};  	/** @param {boolean} minorEdit - set true to mark the edit as a minor edit. */ 	this.setMinorEdit = function(minorEdit) { 		ctx.minorEdit = minorEdit; 	};  	/** @param {boolean} botEdit - set true to mark the edit as a bot edit */ 	this.setBotEdit = function(botEdit) { 		ctx.botEdit = botEdit; 	};  	/** 	 * @param {number} pageSection - integer specifying the section number to load or save. 	 * If specified as `null`, the entire page will be retrieved. 	 */ 	this.setPageSection = function(pageSection) { 		ctx.pageSection = pageSection; 	};  	/** 	 * @param {number} maxConflictRetries - number of retries for save errors involving an edit conflict or 	 * loss of token. Default: 2 	 */ 	this.setMaxConflictRetries = function(maxConflictRetries) { 		ctx.maxConflictRetries = maxConflictRetries; 	};  	/** 	 * @param {number} maxRetries - number of retries for save errors not involving an edit conflict or 	 * loss of token. Default: 2 	 */ 	this.setMaxRetries = function(maxRetries) { 		ctx.maxRetries = maxRetries; 	};  	/** 	 * @param {boolean} watchlistOption 	 *     True  - page will be added to the user's watchlist when save() is called 	 *     False - watchlist status of the page will not be changed (default) 	 */ 	this.setWatchlist = function(watchlistOption) { 		if (watchlistOption) { 			ctx.watchlistOption = 'watch'; 		} else { 			ctx.watchlistOption = 'nochange'; 		} 	};  	/** 	 * @param {boolean} watchlistOption 	 *     True  - page watchlist status will be set based on the user's 	 *             preference settings when save() is called. 	 *     False - watchlist status of the page will not be changed (default) 	 * 	 *    Watchlist notes: 	 *       1. The MediaWiki API value of 'unwatch', which explicitly removes the page from the 	 *          user's watchlist, is not used. 	 *       2. If both setWatchlist() and setWatchlistFromPreferences() are called, 	 *          the last call takes priority. 	 *       3. Twinkle modules should use the appropriate preference to set the watchlist options. 	 *       4. Most Twinkle modules use setWatchlist(). 	 *          setWatchlistFromPreferences() is only needed for the few Twinkle watchlist preferences 	 *          that accept a string value of 'default'. 	 */ 	this.setWatchlistFromPreferences = function(watchlistOption) { 		if (watchlistOption) { 			ctx.watchlistOption = 'preferences'; 		} else { 			ctx.watchlistOption = 'nochange'; 		} 	};  	/** 	 * @param {boolean} followRedirect 	 *     true  - a maximum of one redirect will be followed. 	 *             In the event of a redirect, a message is displayed to the user and 	 *             the redirect target can be retrieved with getPageName(). 	 *     false - the requested pageName will be used without regard to any redirect (default). 	 */ 	this.setFollowRedirect = function(followRedirect) { 		if (ctx.pageLoaded) { 			ctx.statusElement.error('Internal error: cannot change redirect setting after the page has been loaded!'); 			return; 		} 		ctx.followRedirect = followRedirect; 	};  	// lookup-creation setter function 	/** 	 * @param {boolean} flag - if set true, the author and timestamp of the first non-redirect 	 * version of the page is retrieved. 	 * 	 * Warning: 	 * 1. If there are no revisions among the first 50 that are non-redirects, or if there are 	 *    less 50 revisions and all are redirects, the original creation is retrived. 	 * 2. Revisions that the user is not privileged to access (revdeled/suppressed) will be treated 	 *    as non-redirects. 	 * 3. Must not be used when the page has a non-wikitext contentmodel 	 *    such as Modulespace Lua or user JavaScript/CSS 	 */ 	this.setLookupNonRedirectCreator = function(flag) { 		ctx.lookupNonRedirectCreator = flag; 	};  	// Move-related setter functions 	/** @param {string} destination */ 	this.setMoveDestination = function(destination) { 		ctx.moveDestination = destination; 	};  	/** @param {boolean} flag */ 	this.setMoveTalkPage = function(flag) { 		ctx.moveTalkPage = !!flag; 	};  	/** @param {boolean} flag */ 	this.setMoveSubpages = function(flag) { 		ctx.moveSubpages = !!flag; 	};  	/** @param {boolean} flag */ 	this.setMoveSuppressRedirect = function(flag) { 		ctx.moveSuppressRedirect = !!flag; 	};  	// Protect-related setter functions 	this.setEditProtection = function(level, expiry) { 		ctx.protectEdit = { level: level, expiry: expiry }; 	};  	this.setMoveProtection = function(level, expiry) { 		ctx.protectMove = { level: level, expiry: expiry }; 	};  	this.setCreateProtection = function(level, expiry) { 		ctx.protectCreate = { level: level, expiry: expiry }; 	};  	this.setCascadingProtection = function(flag) { 		ctx.protectCascade = !!flag; 	};  	this.suppressProtectWarning = function() { 		ctx.suppressProtectWarning = true; 	};  	// Revert-related getters/setters: 	this.setOldID = function(oldID) { 		ctx.revertOldID = oldID; 	};  	/** @returns {string} string containing the current revision ID of the page */ 	this.getCurrentID = function() { 		return ctx.revertCurID; 	};  	/** @returns {string} last editor of the page */ 	this.getRevisionUser = function() { 		return ctx.revertUser; 	};  	/** @returns {string} ISO 8601 timestamp at which the page was last edited. */ 	this.getLastEditTime = function() { 		return ctx.lastEditTime; 	};  	// Miscellaneous getters/setters:  	/** 	 * `callbackParameters` - an object for use in a callback function 	 * 	 * Callback notes: callbackParameters is for use by the caller only. The parameters 	 * allow a caller to pass the proper context into its callback function. 	 * Callers must ensure that any changes to the callbackParameters object 	 * within a load() callback still permit a proper re-entry into the 	 * load() callback if an edit conflict is detected upon calling save(). 	 */ 	this.setCallbackParameters = function(callbackParameters) { 		ctx.callbackParameters = callbackParameters; 	};  	/** 	 * @returns the object previous set by setCallbackParameters() 	 */ 	this.getCallbackParameters = function() { 		return ctx.callbackParameters; 	};  	/** 	 * @returns {Morebits.status} Status element created by the constructor 	 */ 	this.getStatusElement = function() { 		return ctx.statusElement; 	};  	/** 	 * @param {string} level  The right required for edits not to require 	 * review. Possible options: none, autoconfirmed, review (not on enWiki). 	 * @param {string} expiry 	 */ 	this.setFlaggedRevs = function(level, expiry) { 		ctx.flaggedRevs = { level: level, expiry: expiry }; 	};  	/** 	 * @returns {boolean} true if the page existed on the wiki when it was last loaded 	 */ 	this.exists = function() { 		return ctx.pageExists; 	};  	/** 	 * @returns {string} Page ID of the page loaded. 0 if the page doesn't 	 * exist. 	 */ 	this.getPageID = function() { 		return ctx.pageID; 	};  	/** 	 * @returns {string} ISO 8601 timestamp at which the page was last loaded 	 */ 	this.getLoadTime = function() { 		return ctx.loadTime; 	};  	/** 	 * @returns {string} the user who created the page following lookupCreation() 	 */ 	this.getCreator = function() { 		return ctx.creator; 	};  	/** 	 * @returns {string} the ISOString timestamp of page creation following lookupCreation() 	 */ 	this.getCreationTimestamp = function() { 		return ctx.timestamp; 	};  	/** 	 * Retrieves the username of the user who created the page as well as 	 * the timestamp of creation 	 * @param {Function} onSuccess - callback function (required) which is 	 * called when the username and timestamp are found within the callback. 	 * The username can be retrieved using the getCreator() function; 	 * the timestamp can be retrieved using the getCreationTimestamp() function 	 * Prior to June 2019 known as lookupCreator 	 */ 	this.lookupCreation = function(onSuccess) { 		if (!onSuccess) { 			ctx.statusElement.error('Internal error: no onSuccess callback provided to lookupCreation()!'); 			return; 		} 		ctx.onLookupCreationSuccess = onSuccess;  		var query = { 			'action': 'query', 			'prop': 'revisions', 			'titles': ctx.pageName, 			'rvlimit': 1, 			'rvprop': 'user|timestamp', 			'rvdir': 'newer' 		};  		// Only the wikitext content model can reliably handle 		// rvsection, others return an error when paired with the 		// content rvprop. Relatedly, non-wikitext models don't 		// understand the #REDIRECT concept, so we shouldn't attempt 		// the redirect resolution in fnLookupCreationSuccess 		if (ctx.lookupNonRedirectCreator) { 			query.rvsection = 0; 			query.rvprop += '|content'; 		}  		if (ctx.followRedirect) { 			query.redirects = '';  // follow all redirects 		}  		ctx.lookupCreationApi = new Morebits.wiki.api('Retrieving page creation information', query, fnLookupCreationSuccess, ctx.statusElement); 		ctx.lookupCreationApi.setParent(this); 		ctx.lookupCreationApi.post(); 	};  	/** 	 * Reverts a page to revertOldID 	 * @param {Function} [onSuccess] - callback function to run on success (optional) 	 * @param {Function} [onFailure] - callback function to run on failure (optional) 	 */ 	this.revert = function(onSuccess, onFailure) { 		ctx.onSaveSuccess = onSuccess; 		ctx.onSaveFailure = onFailure || emptyFunction;  		if (!ctx.revertOldID) { 			ctx.statusElement.error('Internal error: revision ID to revert to was not set before revert!'); 			ctx.onSaveFailure(this); 			return; 		}  		ctx.editMode = 'revert'; 		this.load(fnAutoSave, ctx.onSaveFailure); 	};  	/** 	 * Moves a page to another title 	 * @param {Function} [onSuccess] - callback function to run on success (optional) 	 * @param {Function} [onFailure] - callback function to run on failure (optional) 	 */ 	this.move = function(onSuccess, onFailure) { 		ctx.onMoveSuccess = onSuccess; 		ctx.onMoveFailure = onFailure || emptyFunction;  		if (!ctx.editSummary) { 			ctx.statusElement.error('Internal error: move reason not set before move (use setEditSummary function)!'); 			ctx.onMoveFailure(this); 			return; 		} 		if (!ctx.moveDestination) { 			ctx.statusElement.error('Internal error: destination page name was not set before move!'); 			ctx.onMoveFailure(this); 			return; 		}  		if (fnCanUseMwUserToken('move')) { 			fnProcessMove.call(this, this); 		} else { 			var query = fnNeedTokenInfoQuery('move');  			ctx.moveApi = new Morebits.wiki.api('retrieving token...', query, fnProcessMove, ctx.statusElement, ctx.onMoveFailure); 			ctx.moveApi.setParent(this); 			ctx.moveApi.post(); 		} 	};  	/** 	 * Marks the page as patrolled, using rcid (if available) or revid 	 * 	 * Patrolling as such doesn't need to rely on loading the page in 	 * question; simply passing a revid to the API is sufficient, so in 	 * those cases just using Morebits.wiki.api is probably preferable. 	 * 	 * No error handling since we don't actually care about the errors 	 */ 	this.patrol = function() { 		if (!Morebits.userIsSysop && !Morebits.userIsInGroup('patroller')) { 			return; 		}  		// If a link is present, don't need to check if it's patrolled 		if ($('.patrollink').length) { 			var patrolhref = $('.patrollink a').attr('href'); 			ctx.rcid = mw.util.getParamValue('rcid', patrolhref); 			fnProcessPatrol(this, this); 		} else { 			var patrolQuery = { 				action: 'query', 				prop: 'info', 				meta: 'tokens', 				type: 'patrol', // as long as we're querying, might as well get a token 				list: 'recentchanges', // check if the page is unpatrolled 				titles: ctx.pageName, 				rcprop: 'patrolled', 				rctitle: ctx.pageName, 				rclimit: 1 			};  			ctx.patrolApi = new Morebits.wiki.api('retrieving token...', patrolQuery, fnProcessPatrol); 			ctx.patrolApi.setParent(this); 			ctx.patrolApi.post(); 		} 	};  	/** 	 * Marks the page as reviewed by the PageTriage extension 	 * https://www.mediawiki.org/wiki/Extension:PageTriage 	 * 	 * Referred to as "review" on-wiki 	 * 	 * Will, by it's nature, mark as patrolled as well. Falls back to 	 * patrolling if not in an appropriate namespace. 	 * 	 * Doesn't inherently rely on loading the page in question; simply 	 * passing a pageid to the API is sufficient, so in those cases just 	 * using Morebits.wiki.api is probably preferable. 	 * 	 * No error handling since we don't actually care about the errors 	 */ 	this.triage = function() { 		// Fall back to patrol if not a valid triage namespace 		if (mw.config.get('pageTriageNamespaces').indexOf(mw.config.get('wgNamespaceNumber')) === -1) { 			this.patrol(); 		} else { 			if (!Morebits.userIsSysop && !Morebits.userIsInGroup('patroller')) { 				return; 			}  			// If on the page in question, don't need to query for page ID 			if (new mw.Title(Morebits.pageNameNorm).getPrefixedText() === new mw.Title(ctx.pageName).getPrefixedText()) { 				ctx.pageID = mw.config.get('wgArticleId'); 				fnProcessTriage(this, this); 			} else { 				var query = fnNeedTokenInfoQuery('triage');  				ctx.triageApi = new Morebits.wiki.api('retrieving token...', query, fnProcessTriage); 				ctx.triageApi.setParent(this); 				ctx.triageApi.post(); 			} 		} 	};  	// |delete| is a reserved word in some flavours of JS 	/** 	 * Deletes a page (for admins only) 	 * @param {Function} [onSuccess] - callback function to run on success (optional) 	 * @param {Function} [onFailure] - callback function to run on failure (optional) 	 */ 	this.deletePage = function(onSuccess, onFailure) { 		ctx.onDeleteSuccess = onSuccess; 		ctx.onDeleteFailure = onFailure || emptyFunction;  		// if a non-admin tries to do this, don't bother 		if (!Morebits.userIsSysop) { 			ctx.statusElement.error('Cannot delete page: only admins can do that'); 			ctx.onDeleteFailure(this); 			return; 		} 		if (!ctx.editSummary) { 			ctx.statusElement.error('Internal error: delete reason not set before delete (use setEditSummary function)!'); 			ctx.onDeleteFailure(this); 			return; 		}  		if (fnCanUseMwUserToken('delete')) { 			fnProcessDelete.call(this, this); 		} else { 			var query = fnNeedTokenInfoQuery('delete');  			ctx.deleteApi = new Morebits.wiki.api('retrieving token...', query, fnProcessDelete, ctx.statusElement, ctx.onDeleteFailure); 			ctx.deleteApi.setParent(this); 			ctx.deleteApi.post(); 		} 	};  	/** 	 * Undeletes a page (for admins only) 	 * @param {Function} [onSuccess] - callback function to run on success (optional) 	 * @param {Function} [onFailure] - callback function to run on failure (optional) 	 */ 	this.undeletePage = function(onSuccess, onFailure) { 		ctx.onUndeleteSuccess = onSuccess; 		ctx.onUndeleteFailure = onFailure || emptyFunction;  		// if a non-admin tries to do this, don't bother 		if (!Morebits.userIsSysop) { 			ctx.statusElement.error('Cannot undelete page: only admins can do that'); 			ctx.onUndeleteFailure(this); 			return; 		} 		if (!ctx.editSummary) { 			ctx.statusElement.error('Internal error: undelete reason not set before undelete (use setEditSummary function)!'); 			ctx.onUndeleteFailure(this); 			return; 		}  		if (fnCanUseMwUserToken('undelete')) { 			fnProcessUndelete.call(this, this); 		} else { 			var query = fnNeedTokenInfoQuery('undelete');  			ctx.undeleteApi = new Morebits.wiki.api('retrieving token...', query, fnProcessUndelete, ctx.statusElement, ctx.onUndeleteFailure); 			ctx.undeleteApi.setParent(this); 			ctx.undeleteApi.post(); 		} 	};  	/** 	 * Protects a page (for admins only) 	 * @param {Function} [onSuccess] - callback function to run on success (optional) 	 * @param {Function} [onFailure] - callback function to run on failure (optional) 	 */ 	this.protect = function(onSuccess, onFailure) { 		ctx.onProtectSuccess = onSuccess; 		ctx.onProtectFailure = onFailure || emptyFunction;  		// if a non-admin tries to do this, don't bother 		if (!Morebits.userIsSysop) { 			ctx.statusElement.error('Cannot protect page: only admins can do that'); 			ctx.onProtectFailure(this); 			return; 		} 		if (!ctx.protectEdit && !ctx.protectMove && !ctx.protectCreate) { 			ctx.statusElement.error('Internal error: you must set edit and/or move and/or create protection before calling protect()!'); 			ctx.onProtectFailure(this); 			return; 		} 		if (!ctx.editSummary) { 			ctx.statusElement.error('Internal error: protection reason not set before protect (use setEditSummary function)!'); 			ctx.onProtectFailure(this); 			return; 		}  		// because of the way MW API interprets protection levels 		// (absolute, not differential), we always need to request 		// protection levels from the server 		var query = fnNeedTokenInfoQuery('protect');  		ctx.protectApi = new Morebits.wiki.api('retrieving token...', query, fnProcessProtect, ctx.statusElement, ctx.onProtectFailure); 		ctx.protectApi.setParent(this); 		ctx.protectApi.post(); 	};  	/** 	 * Apply FlaggedRevs protection-style settings 	 * only works where $wgFlaggedRevsProtection = true (i.e. where FlaggedRevs 	 * settings appear on the wiki's "protect" tab) 	 * @param {function} [onSuccess] 	 * @param {function} [onFailure] 	 */ 	this.stabilize = function(onSuccess, onFailure) { 		ctx.onStabilizeSuccess = onSuccess; 		ctx.onStabilizeFailure = onFailure || emptyFunction;  		// if a non-admin tries to do this, don't bother 		if (!Morebits.userIsSysop) { 			ctx.statusElement.error('Cannot apply FlaggedRevs settings: only admins can do that'); 			ctx.onStabilizeFailure(this); 			return; 		} 		if (!ctx.flaggedRevs) { 			ctx.statusElement.error('Internal error: you must set flaggedRevs before calling stabilize()!'); 			ctx.onStabilizeFailure(this); 			return; 		} 		if (!ctx.editSummary) { 			ctx.statusElement.error('Internal error: reason not set before calling stabilize() (use setEditSummary function)!'); 			ctx.onStabilizeFailure(this); 			return; 		}  		if (fnCanUseMwUserToken('stabilize')) { 			fnProcessStabilize.call(this, this); 		} else { 			var query = fnNeedTokenInfoQuery('stabilize');  			ctx.stabilizeApi = new Morebits.wiki.api('retrieving token...', query, fnProcessStabilize, ctx.statusElement, ctx.onStabilizeFailure); 			ctx.stabilizeApi.setParent(this); 			ctx.stabilizeApi.post(); 		} 	};  	/* 	 * Private member functions 	 * These are not exposed outside 	 */  	/** 	 * Determines whether we can save an API call by using the csrf token sent with the page 	 * HTML, or whether we need to ask the server for more info (e.g. protection expiry). 	 * 	 * Only applicable for csrf token actions, e.g. not patrol 	 * 	 * Currently used for append, prepend, deletePage, undeletePage, move, 	 * and stabilize.  Can't use for protect since it always needs to 	 * request protection status. 	 * 	 * @param {string} [action=edit]  The action being undertaken, e.g. 	 * "edit" or "delete". In practice, only "edit" or "notedit" matters. 	 * @returns {boolean} 	 */ 	var fnCanUseMwUserToken = function(action) { 		action = typeof action !== 'undefined' ? action : 'edit'; // IE doesn't support default parameters  		// API-based redirect resolution only works for action=query and 		// action=edit in append/prepend modes (and section=new, but we don't 		// really support that) 		if (ctx.followRedirect && (action !== 'edit' || 			(ctx.editMode !== 'append' && ctx.editMode !== 'prepend'))) { 			return false; 		}  		// do we need to fetch the edit protection expiry? 		if (Morebits.userIsSysop && !ctx.suppressProtectWarning) { 			if (new mw.Title(Morebits.pageNameNorm).getPrefixedText() === new mw.Title(ctx.pageName).getPrefixedText()) { 				return false; 			}  			// wgRestrictionEdit is null on non-existent pages, 			// so this neatly handles nonexistent pages 			var editRestriction = mw.config.get('wgRestrictionEdit'); 			if (!editRestriction || editRestriction.indexOf('sysop') !== -1) { 				return false; 			} 		}  		return !!mw.user.tokens.get('csrfToken'); 	};  	/** 	 * When functions can't use fnCanUseMwUserToken or require checking 	 * protection, maintain the query in one place. Used for delete, 	 * undelete, protect, stabilize, and move (basically, just not load) 	 * 	 * @param {string} action  The action being undertaken, e.g. "edit" or 	 * "delete" 	 */ 	var fnNeedTokenInfoQuery = function(action) { 		var query = { 			action: 'query', 			meta: 'tokens', 			type: 'csrf', 			titles: ctx.pageName 		}; 		// Protection not checked for flagged-revs or non-sysop moves 		if (action !== 'stabilize' && (action !== 'move' || Morebits.userIsSysop)) { 			query.prop = 'info'; 			query.inprop = 'protection'; 		} 		if (ctx.followRedirect && action !== 'undelete') { 			query.redirects = ''; // follow all redirects 		} 		return query; 	};  	// callback from loadSuccess() for append() and prepend() threads 	var fnAutoSave = function(pageobj) { 		pageobj.save(ctx.onSaveSuccess, ctx.onSaveFailure); 	};  	// callback from loadApi.post() 	var fnLoadSuccess = function() { 		var xml = ctx.loadApi.getXML();  		if (!fnCheckPageName(xml, ctx.onLoadFailure)) { 			return; // abort 		}  		ctx.pageExists = $(xml).find('page').attr('missing') !== ''; 		if (ctx.pageExists) { 			ctx.pageText = $(xml).find('rev').text(); 			ctx.pageID = $(xml).find('page').attr('pageid'); 		} else { 			ctx.pageText = '';  // allow for concatenation, etc. 			ctx.pageID = 0; // nonexistent in response, matches wgArticleId 		} 		ctx.csrfToken = $(xml).find('tokens').attr('csrftoken'); 		if (!ctx.csrfToken) { 			ctx.statusElement.error('Failed to retrieve edit token.'); 			ctx.onLoadFailure(this); 			return; 		} 		ctx.loadTime = $(xml).find('api').attr('curtimestamp'); 		if (!ctx.loadTime) { 			ctx.statusElement.error('Failed to retrieve current timestamp.'); 			ctx.onLoadFailure(this); 			return; 		}  		// extract protection info, to alert admins when they are about to edit a protected page 		if (Morebits.userIsSysop) { 			var editprot = $(xml).find('pr[type="edit"]'); 			if (editprot.length > 0 && editprot.attr('level') === 'sysop') { 				ctx.fullyProtected = editprot.attr('expiry'); 			} else { 				ctx.fullyProtected = false; 			} 		}  		ctx.lastEditTime = $(xml).find('rev').attr('timestamp'); 		ctx.revertCurID = $(xml).find('page').attr('lastrevid');  		if (ctx.editMode === 'revert') { 			ctx.revertCurID = $(xml).find('rev').attr('revid'); 			if (!ctx.revertCurID) { 				ctx.statusElement.error('Failed to retrieve current revision ID.'); 				ctx.onLoadFailure(this); 				return; 			} 			ctx.revertUser = $(xml).find('rev').attr('user'); 			if (!ctx.revertUser) { 				if ($(xml).find('rev').attr('userhidden') === '') {  // username was RevDel'd or oversighted 					ctx.revertUser = '<username hidden>'; 				} else { 					ctx.statusElement.error('Failed to retrieve user who made the revision.'); 					ctx.onLoadFailure(this); 					return; 				} 			} 			// set revert edit summary 			ctx.editSummary = '[[Help:Revert|Reverted]] to revision ' + ctx.revertOldID + ' by ' + ctx.revertUser + ': ' + ctx.editSummary; 		}  		ctx.pageLoaded = true;  		// alert("Generate edit conflict now");  // for testing edit conflict recovery logic 		ctx.onLoadSuccess(this);  // invoke callback 	};  	// helper function to parse the page name returned from the API 	var fnCheckPageName = function(xml, onFailure) { 		if (!onFailure) { 			onFailure = emptyFunction; 		}  		// check for invalid titles 		if ($(xml).find('page').attr('invalid') === '') { 			ctx.statusElement.error('The page title is invalid: ' + ctx.pageName); 			onFailure(this); 			return false; // abort 		}  		// retrieve actual title of the page after normalization and redirects 		if ($(xml).find('page').attr('title')) { 			var resolvedName = $(xml).find('page').attr('title');  			// only notify user for redirects, not normalization 			if ($(xml).find('redirects').length > 0) { 				Morebits.status.info('Info', 'Redirected from ' + ctx.pageName + ' to ' + resolvedName); 			} 			ctx.pageName = resolvedName;  // always update in case of normalization 		} else { 			// could be a circular redirect or other problem 			ctx.statusElement.error('Could not resolve redirects for: ' + ctx.pageName); 			onFailure(this);  			// force error to stay on the screen 			++Morebits.wiki.numberOfActionsLeft; 			return false; // abort 		} 		return true; // all OK 	};  	// helper function to get a new token on encountering token errors in save, deletePage, and undeletePage 	var fnGetToken = function() { 		var tokenApi = new Morebits.wiki.api('Getting token', { 			action: 'query', 			meta: 'tokens' 		}); 		return tokenApi.post().then(function(apiobj) { 			return $(apiobj.responseXML).find('tokens').attr('csrftoken'); 		}); 	};  	// callback from saveApi.post() 	var fnSaveSuccess = function() { 		ctx.editMode = 'all';  // cancel append/prepend/revert modes 		var xml = ctx.saveApi.getXML();  		// see if the API thinks we were successful 		if ($(xml).find('edit').attr('result') === 'Success') {  			// real success 			// default on success action - display link for edited page 			var link = document.createElement('a'); 			link.setAttribute('href', mw.util.getUrl(ctx.pageName)); 			link.appendChild(document.createTextNode(ctx.pageName)); 			ctx.statusElement.info(['completed (', link, ')']); 			if (ctx.onSaveSuccess) { 				ctx.onSaveSuccess(this);  // invoke callback 			} 			return; 		}  		// errors here are only generated by extensions which hook APIEditBeforeSave within MediaWiki, 		// which as of 1.34.0-wmf.23 (Sept 2019) should only encompass captcha messages 		if ($(xml).find('captcha').length > 0) { 			ctx.statusElement.error('Could not save the page because the wiki server wanted you to fill out a CAPTCHA.'); 		} else { 			ctx.statusElement.error('Unknown error received from API while saving page'); 		}  		// force error to stay on the screen 		++Morebits.wiki.numberOfActionsLeft;  		ctx.onSaveFailure(this); 	};  	// callback from saveApi.post() 	var fnSaveError = function() { 		var errorCode = ctx.saveApi.getErrorCode();  		// check for edit conflict 		if (errorCode === 'editconflict' && ctx.conflictRetries++ < ctx.maxConflictRetries) {  			// edit conflicts can occur when the page needs to be purged from the server cache 			var purgeQuery = { 				action: 'purge', 				titles: ctx.pageName  // redirects are already resolved 			};  			var purgeApi = new Morebits.wiki.api('Edit conflict detected, purging server cache', purgeQuery, function() { 				--Morebits.wiki.numberOfActionsLeft;  // allow for normal completion if retry succeeds  				ctx.statusElement.info('Edit conflict detected, reapplying edit'); 				if (fnCanUseMwUserToken('edit')) { 					ctx.saveApi.post(); // necessarily append or prepend, so this should work as desired 				} else { 					ctx.loadApi.post(); // reload the page and reapply the edit 				} 			}, ctx.statusElement); 			purgeApi.post();  		// check for loss of edit token 		} else if (errorCode === 'badtoken' && ctx.retries++ < ctx.maxRetries) {  			ctx.statusElement.info('Edit token is invalid, retrying'); 			--Morebits.wiki.numberOfActionsLeft;  // allow for normal completion if retry succeeds 			fnGetToken().then(function(token) { 				ctx.saveApi.query.token = token; 				ctx.saveApi.post(); 			});  		// check for network or server error 		} else if (errorCode === 'undefined' && ctx.retries++ < ctx.maxRetries) {  			// the error might be transient, so try again 			ctx.statusElement.info('Save failed, retrying'); 			--Morebits.wiki.numberOfActionsLeft;  // allow for normal completion if retry succeeds 			ctx.saveApi.post(); // give it another go!  		// hard error, give up 		} else {  			// non-admin attempting to edit a protected page - this gives a friendlier message than the default 			if (errorCode === 'protectedpage') { 				ctx.statusElement.error('Failed to save edit: Page is protected'); 			// check for absuefilter hits: disallowed or warning 			} else if (errorCode.indexOf('abusefilter') === 0) { 				var desc = $(ctx.saveApi.getXML()).find('abusefilter').attr('description'); 				if (errorCode === 'abusefilter-disallowed') { 					ctx.statusElement.error('The edit was disallowed by the edit filter: "' + desc + '".'); 				} else if (errorCode === 'abusefilter-warning') { 					ctx.statusElement.error([ 'A warning was returned by the edit filter: "', desc, '". If you wish to proceed with the edit, please carry it out again. This warning will not appear a second time.' ]); 					// We should provide the user with a way to automatically retry the action if they so choose - 					// I can't see how to do this without creating a UI dependency on Morebits.wiki.page though -- TTO 				} else { // shouldn't happen but... 					ctx.statusElement.error('The edit was disallowed by the edit filter.'); 				} 			// check for blacklist hits 			} else if (errorCode === 'spamblacklist') { 				// .find('matches') returns an array in case multiple items are blacklisted, we only return the first 				var spam = $(ctx.saveApi.getXML()).find('spamblacklist').find('matches').children()[0].textContent; 				ctx.statusElement.error('Could not save the page because the URL ' + spam + ' is on the spam blacklist'); 			} else { 				ctx.statusElement.error('Failed to save edit: ' + ctx.saveApi.getErrorText()); 			} 			ctx.editMode = 'all';  // cancel append/prepend/revert modes 			if (ctx.onSaveFailure) { 				ctx.onSaveFailure(this);  // invoke callback 			} 		} 	};  	var fnLookupCreationSuccess = function() { 		var xml = ctx.lookupCreationApi.getXML();  		if (!fnCheckPageName(xml)) { 			return; // abort 		}  		if (!ctx.lookupNonRedirectCreator || !/^\s*#redirect/i.test($(xml).find('rev').text())) {  			ctx.creator = $(xml).find('rev').attr('user'); 			if (!ctx.creator) { 				ctx.statusElement.error('Could not find name of page creator'); 				return; 			} 			ctx.timestamp = $(xml).find('rev').attr('timestamp'); 			if (!ctx.timestamp) { 				ctx.statusElement.error('Could not find timestamp of page creation'); 				return; 			} 			ctx.onLookupCreationSuccess(this);  		} else { 			ctx.lookupCreationApi.query.rvlimit = 50; // modify previous query to fetch more revisions 			ctx.lookupCreationApi.query.titles = ctx.pageName; // update pageName if redirect resolution took place in earlier query  			ctx.lookupCreationApi = new Morebits.wiki.api('Retrieving page creation information', ctx.lookupCreationApi.query, fnLookupNonRedirectCreator, ctx.statusElement); 			ctx.lookupCreationApi.setParent(this); 			ctx.lookupCreationApi.post(); 		}  	};  	var fnLookupNonRedirectCreator = function() { 		var xml = ctx.lookupCreationApi.getXML();  		$(xml).find('rev').each(function(_, rev) { 			if (!/^\s*#redirect/i.test(rev.textContent)) { // inaccessible revisions also check out 				ctx.creator = rev.getAttribute('user'); 				ctx.timestamp = rev.getAttribute('timestamp'); 				return false; // break 			} 		});  		if (!ctx.creator) { 			// fallback to give first revision author if no non-redirect version in the first 50 			ctx.creator = $(xml).find('rev')[0].getAttribute('user'); 			ctx.timestamp = $(xml).find('rev')[0].getAttribute('timestamp'); 			if (!ctx.creator) { 				ctx.statusElement.error('Could not find name of page creator'); 				return; 			}  		} 		if (!ctx.timestamp) { 			ctx.statusElement.error('Could not find timestamp of page creation'); 			return; 		}  		ctx.onLookupCreationSuccess(this);  	};  	var fnProcessMove = function() { 		var pageTitle, token;  		if (fnCanUseMwUserToken('move')) { 			token = mw.user.tokens.get('csrfToken'); 			pageTitle = ctx.pageName; 		} else { 			var xml = ctx.moveApi.getXML();  			if ($(xml).find('page').attr('missing') === '') { 				ctx.statusElement.error('Cannot move the page, because it no longer exists'); 				ctx.onMoveFailure(this); 				return; 			}  			// extract protection info 			if (Morebits.userIsSysop) { 				var editprot = $(xml).find('pr[type="edit"]'); 				if (editprot.length > 0 && editprot.attr('level') === 'sysop' && !ctx.suppressProtectWarning && 					!confirm('You are about to move the fully protected page "' + ctx.pageName + 					(editprot.attr('expiry') === 'infinity' ? '" (protected indefinitely)' : '" (protection expiring ' + new Morebits.date(editprot.attr('expiry')).calendar('utc') + ' (UTC))') + 					'.  \n\nClick OK to proceed with the move, or Cancel to skip this move.')) { 					ctx.statusElement.error('Move of fully protected page was aborted.'); 					ctx.onMoveFailure(this); 					return; 				} 			}  			token = $(xml).find('tokens').attr('csrftoken'); 			if (!token) { 				ctx.statusElement.error('Failed to retrieve move token.'); 				ctx.onMoveFailure(this); 				return; 			}  			pageTitle = $(xml).find('page').attr('title'); 		}  		var query = { 			'action': 'move', 			'from': pageTitle, 			'to': ctx.moveDestination, 			'token': token, 			'reason': ctx.editSummary, 			'watchlist': ctx.watchlistOption 		}; 		if (ctx.moveTalkPage) { 			query.movetalk = 'true'; 		} 		if (ctx.moveSubpages) { 			query.movesubpages = 'true'; 		} 		if (ctx.moveSuppressRedirect) { 			query.noredirect = 'true'; 		}  		ctx.moveProcessApi = new Morebits.wiki.api('moving page...', query, ctx.onMoveSuccess, ctx.statusElement, ctx.onMoveFailure); 		ctx.moveProcessApi.setParent(this); 		ctx.moveProcessApi.post(); 	};  	var fnProcessPatrol = function() { 		var query = { 			action: 'patrol' 		};  		// Didn't need to load the page 		if (ctx.rcid) { 			query.rcid = ctx.rcid; 			query.token = mw.user.tokens.get('patrolToken'); 		} else { 			var xml = ctx.patrolApi.getResponse();  			// Don't patrol if not unpatrolled 			if ($(xml).find('rc').attr('unpatrolled') !== '') { 				return; 			}  			var lastrevid = $(xml).find('page').attr('lastrevid'); 			if (!lastrevid) { 				return; 			} 			query.revid = lastrevid;  			var token = $(xml).find('tokens').attr('patroltoken'); 			if (!token) { 				return; 			}  			query.token = token; 		}  		var patrolStat = new Morebits.status('Marking page as patrolled');  		ctx.patrolProcessApi = new Morebits.wiki.api('patrolling page...', query, null, patrolStat); 		ctx.patrolProcessApi.setParent(this); 		ctx.patrolProcessApi.post(); 	};  	var fnProcessTriage = function() { 		var pageID, token;  		if (ctx.pageID) { 			token = mw.user.tokens.get('csrfToken'); 			pageID = ctx.pageID; 		} else { 			var xml = ctx.triageApi.getXML();  			pageID = $(xml).find('page').attr('pageid'); 			if (!pageID) { 				return; 			}  			token = $(xml).find('tokens').attr('csrftoken'); 			if (!token) { 				return; 			} 		}  		var query = { 			action: 'pagetriageaction', 			pageid: pageID, 			reviewed: 1, 			token: token 		};  		var triageStat = new Morebits.status('Marking page as curated');  		ctx.triageProcessApi = new Morebits.wiki.api('curating page...', query, null, triageStat, fnProcessTriageError); 		ctx.triageProcessApi.setParent(this); 		ctx.triageProcessApi.post(); 	};  	// callback from triageProcessApi.post() 	var fnProcessTriageError = function() { 		// Ignore error if page not in queue, see https://github.com/azatoth/twinkle/pull/930 		if (ctx.triageProcessApi.getErrorCode() === 'bad-pagetriage-page') { 			ctx.triageProcessApi.getStatusElement().unlink(); 		} 	};  	var fnProcessDelete = function() { 		var pageTitle, token;  		if (fnCanUseMwUserToken('delete')) { 			token = mw.user.tokens.get('csrfToken'); 			pageTitle = ctx.pageName; 		} else { 			var xml = ctx.deleteApi.getXML();  			if ($(xml).find('page').attr('missing') === '') { 				ctx.statusElement.error('Cannot delete the page, because it no longer exists'); 				ctx.onDeleteFailure(this); 				return; 			}  			// extract protection info 			var editprot = $(xml).find('pr[type="edit"]'); 			if (editprot.length > 0 && editprot.attr('level') === 'sysop' && !ctx.suppressProtectWarning && 				!confirm('You are about to delete the fully protected page "' + ctx.pageName + 				(editprot.attr('expiry') === 'infinity' ? '" (protected indefinitely)' : '" (protection expiring ' + new Morebits.date(editprot.attr('expiry')).calendar('utc') + ' (UTC))') + 				'.  \n\nClick OK to proceed with the deletion, or Cancel to skip this deletion.')) { 				ctx.statusElement.error('Deletion of fully protected page was aborted.'); 				ctx.onDeleteFailure(this); 				return; 			}  			token = $(xml).find('tokens').attr('csrftoken'); 			if (!token) { 				ctx.statusElement.error('Failed to retrieve delete token.'); 				ctx.onDeleteFailure(this); 				return; 			}  			pageTitle = $(xml).find('page').attr('title'); 		}  		var query = { 			'action': 'delete', 			'title': pageTitle, 			'token': token, 			'reason': ctx.editSummary, 			'watchlist': ctx.watchlistOption 		};  		ctx.deleteProcessApi = new Morebits.wiki.api('deleting page...', query, ctx.onDeleteSuccess, ctx.statusElement, fnProcessDeleteError); 		ctx.deleteProcessApi.setParent(this); 		ctx.deleteProcessApi.post(); 	};  	// callback from deleteProcessApi.post() 	var fnProcessDeleteError = function() {  		var errorCode = ctx.deleteProcessApi.getErrorCode();  		// check for "Database query error" 		if (errorCode === 'internal_api_error_DBQueryError' && ctx.retries++ < ctx.maxRetries) { 			ctx.statusElement.info('Database query error, retrying'); 			--Morebits.wiki.numberOfActionsLeft;  // allow for normal completion if retry succeeds 			ctx.deleteProcessApi.post(); // give it another go! 		} else if (errorCode === 'badtoken' && ctx.retries++ < ctx.maxRetries) { 			ctx.statusElement.info('Invalid token, retrying'); 			--Morebits.wiki.numberOfActionsLeft; 			fnGetToken().then(function(token) { 				ctx.deleteProcessApi.query.token = token; 				ctx.deleteProcessApi.post(); 			}); 		} else if (errorCode === 'missingtitle') { 			ctx.statusElement.error('Cannot delete the page, because it no longer exists'); 			if (ctx.onDeleteFailure) { 				ctx.onDeleteFailure.call(this, ctx.deleteProcessApi);  // invoke callback 			} 		// hard error, give up 		} else { 			ctx.statusElement.error('Failed to delete the page: ' + ctx.deleteProcessApi.getErrorText()); 			if (ctx.onDeleteFailure) { 				ctx.onDeleteFailure.call(this, ctx.deleteProcessApi);  // invoke callback 			} 		} 	};  	var fnProcessUndelete = function() { 		var pageTitle, token;  		if (fnCanUseMwUserToken('undelete')) { 			token = mw.user.tokens.get('csrfToken'); 			pageTitle = ctx.pageName; 		} else { 			var xml = ctx.undeleteApi.getXML();  			if ($(xml).find('page').attr('missing') !== '') { 				ctx.statusElement.error('Cannot undelete the page, because it already exists'); 				ctx.onUndeleteFailure(this); 				return; 			}  			// extract protection info 			var editprot = $(xml).find('pr[type="create"]'); 			if (editprot.length > 0 && editprot.attr('level') === 'sysop' && !ctx.suppressProtectWarning && 				!confirm('You are about to undelete the fully create protected page "' + ctx.pageName + 				(editprot.attr('expiry') === 'infinity' ? '" (protected indefinitely)' : '" (protection expiring ' + new Morebits.date(editprot.attr('expiry')).calendar('utc') + ' (UTC))') + 				'.  \n\nClick OK to proceed with the undeletion, or Cancel to skip this undeletion.')) { 				ctx.statusElement.error('Undeletion of fully create protected page was aborted.'); 				ctx.onUndeleteFailure(this); 				return; 			}  			token = $(xml).find('tokens').attr('csrftoken'); 			if (!token) { 				ctx.statusElement.error('Failed to retrieve undelete token.'); 				ctx.onUndeleteFailure(this); 				return; 			}  			pageTitle = $(xml).find('page').attr('title'); 		}  		var query = { 			'action': 'undelete', 			'title': pageTitle, 			'token': token, 			'reason': ctx.editSummary, 			'watchlist': ctx.watchlistOption 		};  		ctx.undeleteProcessApi = new Morebits.wiki.api('undeleting page...', query, ctx.onUndeleteSuccess, ctx.statusElement, fnProcessUndeleteError); 		ctx.undeleteProcessApi.setParent(this); 		ctx.undeleteProcessApi.post(); 	};  	// callback from undeleteProcessApi.post() 	var fnProcessUndeleteError = function() {  		var errorCode = ctx.undeleteProcessApi.getErrorCode();  		// check for "Database query error" 		if (errorCode === 'internal_api_error_DBQueryError' && ctx.retries++ < ctx.maxRetries) { 			ctx.statusElement.info('Database query error, retrying'); 			--Morebits.wiki.numberOfActionsLeft;  // allow for normal completion if retry succeeds 			ctx.undeleteProcessApi.post(); // give it another go! 		} else if (errorCode === 'badtoken' && ctx.retries++ < ctx.maxRetries) { 			ctx.statusElement.info('Invalid token, retrying'); 			--Morebits.wiki.numberOfActionsLeft; 			fnGetToken().then(function(token) { 				ctx.undeleteProcessApi.query.token = token; 				ctx.undeleteProcessApi.post(); 			}); 		} else if (errorCode === 'cantundelete') { 			ctx.statusElement.error('Cannot undelete the page, either because there are no revisions to undelete or because it has already been undeleted'); 			if (ctx.onUndeleteFailure) { 				ctx.onUndeleteFailure.call(this, ctx.undeleteProcessApi);  // invoke callback 			} 		// hard error, give up 		} else { 			ctx.statusElement.error('Failed to undelete the page: ' + ctx.undeleteProcessApi.getErrorText()); 			if (ctx.onUndeleteFailure) { 				ctx.onUndeleteFailure.call(this, ctx.undeleteProcessApi);  // invoke callback 			} 		} 	};  	var fnProcessProtect = function() { 		var xml = ctx.protectApi.getXML();  		var missing = $(xml).find('page').attr('missing') === ''; 		if ((ctx.protectEdit || ctx.protectMove) && missing) { 			ctx.statusElement.error('Cannot protect the page, because it no longer exists'); 			ctx.onProtectFailure(this); 			return; 		} 		if (ctx.protectCreate && !missing) { 			ctx.statusElement.error('Cannot create protect the page, because it already exists'); 			ctx.onProtectFailure(this); 			return; 		}  		// TODO cascading protection not possible on edit<sysop  		var token = $(xml).find('tokens').attr('csrftoken'); 		if (!token) { 			ctx.statusElement.error('Failed to retrieve protect token.'); 			ctx.onProtectFailure(this); 			return; 		}  		var pageTitle = $(xml).find('page').attr('title');  		// fetch existing protection levels 		var prs = $(xml).find('pr'); 		var editprot = prs.filter('[type="edit"]'); 		var moveprot = prs.filter('[type="move"]'); 		var createprot = prs.filter('[type="create"]');  		var protections = [], expirys = [];  		// set edit protection level 		if (ctx.protectEdit) { 			protections.push('edit=' + ctx.protectEdit.level); 			expirys.push(ctx.protectEdit.expiry); 		} else if (editprot.length) { 			protections.push('edit=' + editprot.attr('level')); 			expirys.push(editprot.attr('expiry').replace('infinity', 'indefinite')); 		}  		if (ctx.protectMove) { 			protections.push('move=' + ctx.protectMove.level); 			expirys.push(ctx.protectMove.expiry); 		} else if (moveprot.length) { 			protections.push('move=' + moveprot.attr('level')); 			expirys.push(moveprot.attr('expiry').replace('infinity', 'indefinite')); 		}  		if (ctx.protectCreate) { 			protections.push('create=' + ctx.protectCreate.level); 			expirys.push(ctx.protectCreate.expiry); 		} else if (createprot.length) { 			protections.push('create=' + createprot.attr('level')); 			expirys.push(createprot.attr('expiry').replace('infinity', 'indefinite')); 		}  		var query = { 			action: 'protect', 			title: pageTitle, 			token: token, 			protections: protections.join('|'), 			expiry: expirys.join('|'), 			reason: ctx.editSummary, 			watchlist: ctx.watchlistOption 		}; 		if (ctx.protectCascade) { 			query.cascade = 'true'; 		}  		ctx.protectProcessApi = new Morebits.wiki.api('protecting page...', query, ctx.onProtectSuccess, ctx.statusElement, ctx.onProtectFailure); 		ctx.protectProcessApi.setParent(this); 		ctx.protectProcessApi.post(); 	};  	var fnProcessStabilize = function() { 		var pageTitle, token;  		if (fnCanUseMwUserToken('stabilize')) { 			token = mw.user.tokens.get('csrfToken'); 			pageTitle = ctx.pageName; 		} else { 			var xml = ctx.stabilizeApi.getXML();  			var missing = $(xml).find('page').attr('missing') === ''; 			if (missing) { 				ctx.statusElement.error('Cannot protect the page, because it no longer exists'); 				ctx.onStabilizeFailure(this); 				return; 			}  			token = $(xml).find('tokens').attr('csrftoken'); 			if (!token) { 				ctx.statusElement.error('Failed to retrieve stabilize token.'); 				ctx.onStabilizeFailure(this); 				return; 			}  			pageTitle = $(xml).find('page').attr('title'); 		}  		var query = { 			action: 'stabilize', 			title: pageTitle, 			token: token, 			protectlevel: ctx.flaggedRevs.level, 			expiry: ctx.flaggedRevs.expiry, 			reason: ctx.editSummary 		}; 		// [[phab:T247915]] 		if (ctx.watchlistOption === 'watch') { 			query.watchlist = 'true'; 		}  		ctx.stabilizeProcessApi = new Morebits.wiki.api('configuring stabilization settings...', query, ctx.onStabilizeSuccess, ctx.statusElement, ctx.onStabilizeFailure); 		ctx.stabilizeProcessApi.setParent(this); 		ctx.stabilizeProcessApi.post(); 	}; }; // end Morebits.wiki.page  /* Morebits.wiki.page TODO: (XXX) * - Should we retry loads also? * - Need to reset current action before the save? * - Deal with action.completed stuff * - Need to reset all parameters once done (e.g. edit summary, move destination, etc.) */    /**  * **************** Morebits.wiki.preview ****************  * Uses the API to parse a fragment of wikitext and render it as HTML.  *  * The suggested implementation pattern (in Morebits.simpleWindow + Morebits.quickForm situations) is to  * construct a Morebits.wiki.preview object after rendering a Morebits.quickForm, and bind the object  * to an arbitrary property of the form (e.g. |previewer|).  For an example, see  * twinklewarn.js.  */  /**  * @constructor  * @param {HTMLElement} previewbox - the element that will contain the rendered HTML,  * usually a <div> element  */ Morebits.wiki.preview = function(previewbox) { 	this.previewbox = previewbox; 	$(previewbox).addClass('morebits-previewbox').hide();  	/** 	 * Displays the preview box, and begins an asynchronous attempt 	 * to render the specified wikitext. 	 * @param {string} wikitext - wikitext to render; most things should work, including subst: and ~~~~ 	 * @param {string} [pageTitle] - optional parameter for the page this should be rendered as being on, if omitted it is taken as the current page 	 */ 	this.beginRender = function(wikitext, pageTitle) { 		$(previewbox).show();  		var statusspan = document.createElement('span'); 		previewbox.appendChild(statusspan); 		Morebits.status.init(statusspan);  		var query = { 			action: 'parse', 			prop: 'text', 			pst: 'true',  // PST = pre-save transform; this makes substitution work properly 			text: wikitext, 			title: pageTitle || mw.config.get('wgPageName') 		}; 		var renderApi = new Morebits.wiki.api('loading...', query, fnRenderSuccess, new Morebits.status('Preview')); 		renderApi.post(); 	};  	var fnRenderSuccess = function(apiobj) { 		var xml = apiobj.getXML(); 		var html = $(xml).find('text').text(); 		if (!html) { 			apiobj.statelem.error('failed to retrieve preview, or template was blanked'); 			return; 		} 		previewbox.innerHTML = html; 		$(previewbox).find('a').attr('target', '_blank'); // this makes links open in new tab 	};  	/** Hides the preview box and clears it. */ 	this.closePreview = function() { 		$(previewbox).empty().hide(); 	}; };    /**  * **************** Morebits.wikitext ****************  * Wikitext manipulation  */  Morebits.wikitext = {};  Morebits.wikitext.template = { 	parse: function(text, start) { 		var count = -1; 		var level = -1; 		var equals = -1; 		var current = ''; 		var result = { 			name: '', 			parameters: {} 		}; 		var key, value;  		for (var i = start; i < text.length; ++i) { 			var test3 = text.substr(i, 3); 			if (test3 === '{{{') { 				current += '{{{'; 				i += 2; 				++level; 				continue; 			} 			if (test3 === '}}}') { 				current += '}}}'; 				i += 2; 				--level; 				continue; 			} 			var test2 = text.substr(i, 2); 			if (test2 === '{{' || test2 === '[[') { 				current += test2; 				++i; 				++level; 				continue; 			} 			if (test2 === ']]') { 				current += ']]'; 				++i; 				--level; 				continue; 			} 			if (test2 === '}}') { 				current += test2; 				++i; 				--level;  				if (level <= 0) { 					if (count === -1) { 						result.name = current.substring(2).trim(); 						++count; 					} else { 						if (equals !== -1) { 							key = current.substring(0, equals).trim(); 							value = current.substring(equals).trim(); 							result.parameters[key] = value; 							equals = -1; 						} else { 							result.parameters[count] = current; 							++count; 						} 					} 					break; 				} 				continue; 			}  			if (text.charAt(i) === '|' && level <= 0) { 				if (count === -1) { 					result.name = current.substring(2).trim(); 					++count; 				} else { 					if (equals !== -1) { 						key = current.substring(0, equals).trim(); 						value = current.substring(equals + 1).trim(); 						result.parameters[key] = value; 						equals = -1; 					} else { 						result.parameters[count] = current; 						++count; 					} 				} 				current = ''; 			} else if (equals === -1 && text.charAt(i) === '=' && level <= 0) { 				equals = current.length; 				current += text.charAt(i); 			} else { 				current += text.charAt(i); 			} 		}  		return result; 	} };  /**  * @constructor  * @param {string} text  */ Morebits.wikitext.page = function mediawikiPage(text) { 	this.text = text; };  Morebits.wikitext.page.prototype = { 	text: '',  	/** 	 * Removes links to `link_target` from the page text. 	 * @param {string} link_target 	 */ 	removeLink: function(link_target) { 		var first_char = link_target.substr(0, 1); 		var link_re_string = '[' + first_char.toUpperCase() + first_char.toLowerCase() + ']' + RegExp.escape(link_target.substr(1), true);  		// Files and Categories become links with a leading colon, e.g. [[:File:Test.png]] 		// Otherwise, allow for an optional leading colon, e.g. [[:User:Test]] 		var special_ns_re = /^(?:[Ff]ile|[Ii]mage|[Cc]ategory):/; 		var colon = special_ns_re.test(link_target) ? ':' : ':?';  		var link_simple_re = new RegExp('\\[\\[' + colon + '(' + link_re_string + ')\\]\\]', 'g'); 		var link_named_re = new RegExp('\\[\\[' + colon + link_re_string + '\\|(.+?)\\]\\]', 'g'); 		this.text = this.text.replace(link_simple_re, '$1').replace(link_named_re, '$1'); 	},  	/** 	 * Comments out images from page text. If used in a gallery, deletes the whole line. 	 * If used as a template argument (not necessarily with File: prefix), the template parameter is commented out. 	 * @param {string} image - Image name without File: prefix 	 * @param {string} reason - Reason to be included in comment, alongside the commented-out image 	 */ 	commentOutImage: function(image, reason) { 		var unbinder = new Morebits.unbinder(this.text); 		unbinder.unbind('<!--', '-->');  		reason = reason ? reason + ': ' : ''; 		var first_char = image.substr(0, 1); 		var image_re_string = '[' + first_char.toUpperCase() + first_char.toLowerCase() + ']' + RegExp.escape(image.substr(1), true);  		// Check for normal image links, i.e. [[File:Foobar.png|...]] 		// Will eat the whole link 		var links_re = new RegExp('\\[\\[(?:[Ii]mage|[Ff]ile):\\s*' + image_re_string); 		var allLinks = Morebits.array.uniq(Morebits.string.splitWeightedByKeys(unbinder.content, '[[', ']]')); 		for (var i = 0; i < allLinks.length; ++i) { 			if (links_re.test(allLinks[i])) { 				var replacement = '<!-- ' + reason + allLinks[i] + ' -->'; 				unbinder.content = unbinder.content.replace(allLinks[i], replacement, 'g'); 			} 		} 		// unbind the newly created comments 		unbinder.unbind('<!--', '-->');  		// Check for gallery images, i.e. instances that must start on a new line, 		// eventually preceded with some space, and must include File: prefix 		// Will eat the whole line. 		var gallery_image_re = new RegExp('(^\\s*(?:[Ii]mage|[Ff]ile):\\s*' + image_re_string + '.*?$)', 'mg'); 		unbinder.content = unbinder.content.replace(gallery_image_re, '<!-- ' + reason + '$1 -->');  		// unbind the newly created comments 		unbinder.unbind('<!--', '-->');  		// Check free image usages, for example as template arguments, might have the File: prefix excluded, but must be preceeded by an | 		// Will only eat the image name and the preceeding bar and an eventual named parameter 		var free_image_re = new RegExp('(\\|\\s*(?:[\\w\\s]+\\=)?\\s*(?:(?:[Ii]mage|[Ff]ile):\\s*)?' + image_re_string + ')', 'mg'); 		unbinder.content = unbinder.content.replace(free_image_re, '<!-- ' + reason + '$1 -->'); 		// Rebind the content now, we are done! 		this.text = unbinder.rebind(); 	},  	/** 	 * Converts first usage of [[File:`image`]] to [[File:`image`|`data`]] 	 * @param {string} image - Image name without File: prefix 	 * @param {string} data 	 */ 	addToImageComment: function(image, data) { 		var first_char = image.substr(0, 1); 		var first_char_regex = RegExp.escape(first_char, true); 		if (first_char.toUpperCase() !== first_char.toLowerCase()) { 			first_char_regex = '[' + RegExp.escape(first_char.toUpperCase(), true) + RegExp.escape(first_char.toLowerCase(), true) + ']'; 		} 		var image_re_string = '(?:[Ii]mage|[Ff]ile):\\s*' + first_char_regex + RegExp.escape(image.substr(1), true); 		var links_re = new RegExp('\\[\\[' + image_re_string); 		var allLinks = Morebits.array.uniq(Morebits.string.splitWeightedByKeys(this.text, '[[', ']]')); 		for (var i = 0; i < allLinks.length; ++i) { 			if (links_re.test(allLinks[i])) { 				var replacement = allLinks[i]; 				// just put it at the end? 				replacement = replacement.replace(/\]\]$/, '|' + data + ']]'); 				this.text = this.text.replace(allLinks[i], replacement, 'g'); 			} 		} 		var gallery_re = new RegExp('^(\\s*' + image_re_string + '.*?)\\|?(.*?)$', 'mg'); 		var newtext = '$1|$2 ' + data; 		this.text = this.text.replace(gallery_re, newtext); 	},  	/** 	 * Removes transclusions of template from page text 	 * @param {string} template - Page name whose transclusions are to be removed, 	 * include namespace prefix only if not in template namespace 	 */ 	removeTemplate: function(template) { 		var first_char = template.substr(0, 1); 		var template_re_string = '(?:[Tt]emplate:)?\\s*[' + first_char.toUpperCase() + first_char.toLowerCase() + ']' + RegExp.escape(template.substr(1), true); 		var links_re = new RegExp('\\{\\{' + template_re_string); 		var allTemplates = Morebits.array.uniq(Morebits.string.splitWeightedByKeys(this.text, '{{', '}}', [ '{{{', '}}}' ])); 		for (var i = 0; i < allTemplates.length; ++i) { 			if (links_re.test(allTemplates[i])) { 				this.text = this.text.replace(allTemplates[i], '', 'g'); 			} 		} 	},  	/** @returns {string} */ 	getText: function() { 		return this.text; 	} };  /**  * *********** Morebits.userspaceLogger ************  * Handles logging actions to a userspace log, used in  * twinklespeedy and twinkleprod.  */  Morebits.userspaceLogger = function(logPageName) { 	if (!logPageName) { 		throw new Error('no log page name specified'); 	} 	this.initialText = ''; 	this.headerLevel = 3;  	this.log = function(logText, summaryText) { 		if (!logText) { 			return; 		} 		var page = new Morebits.wiki.page('User:' + mw.config.get('wgUserName') + '/' + logPageName, 			'Adding entry to userspace log'); // make this '... to ' + logPageName ? 		return page.load(function(pageobj) { 			// add blurb if log page doesn't exist or is blank 			var text = pageobj.getPageText() || this.initialText;  			// create monthly header if it doesn't exist already 			var date = new Morebits.date(pageobj.getLoadTime()); 			if (!date.monthHeaderRegex().exec(text)) { 				text += '\n\n' + date.monthHeader(this.headerLevel); 			}  			pageobj.setPageText(text + '\n' + logText); 			pageobj.setEditSummary(summaryText); 			pageobj.setCreateOption('recreate'); 			pageobj.save(); 		}.bind(this)); 	}; };  /**  * **************** Morebits.status ****************  */  /**  * @constructor  * Morebits.status.init() must be called before any status object is created, otherwise  * those statuses won't be visible.  * @param {String} text - Text before the the colon `:`  * @param {String} stat - Text after the colon `:`  * @param {String} [type=status] - This parameter determines the font color of the status line,  * this can be 'status' (blue), 'info' (green), 'warn' (red), or 'error' (bold red)  * The default is 'status'  */  Morebits.status = function Status(text, stat, type) { 	this.textRaw = text; 	this.text = this.codify(text); 	this.type = type || 'status'; 	this.generate(); 	if (stat) { 		this.update(stat, type); 	} };  /**  * Specify an area for status message elements to be added to  * @param {HTMLElement} root - usually a div element  */ Morebits.status.init = function(root) { 	if (!(root instanceof Element)) { 		throw new Error('object not an instance of Element'); 	} 	while (root.hasChildNodes()) { 		root.removeChild(root.firstChild); 	} 	Morebits.status.root = root; 	Morebits.status.errorEvent = null; };  Morebits.status.root = null;  /** @param {Function} handler - function to execute on error */ Morebits.status.onError = function(handler) { 	if (typeof handler === 'function') { 		Morebits.status.errorEvent = handler; 	} else { 		throw 'Morebits.status.onError: handler is not a function'; 	} };  Morebits.status.prototype = { 	stat: null, 	text: null, 	textRaw: null, 	type: 'status', 	target: null, 	node: null, 	linked: false,  	/** Add the status element node to the DOM */ 	link: function() { 		if (!this.linked && Morebits.status.root) { 			Morebits.status.root.appendChild(this.node); 			this.linked = true; 		} 	},  	/** Remove the status element node from the DOM */ 	unlink: function() { 		if (this.linked) { 			Morebits.status.root.removeChild(this.node); 			this.linked = false; 		} 	},  	/** 	 * Create a document fragment with the status text 	 * @param {(string|Element|Array)} obj 	 * @returns {DocumentFragment} 	 */ 	codify: function(obj) { 		if (!Array.isArray(obj)) { 			obj = [ obj ]; 		} 		var result; 		result = document.createDocumentFragment(); 		for (var i = 0; i < obj.length; ++i) { 			if (typeof obj[i] === 'string') { 				result.appendChild(document.createTextNode(obj[i])); 			} else if (obj[i] instanceof Element) { 				result.appendChild(obj[i]); 			} // Else cosmic radiation made something shit 		} 		return result;  	},  	/** 	 * Update the status 	 * @param {String} status - Part of status message after colon `:` 	 * @param {String} type - 'status' (blue), 'info' (green), 'warn' (red), or 'error' (bold red) 	 */ 	update: function(status, type) { 		this.stat = this.codify(status); 		if (type) { 			this.type = type; 			if (type === 'error') { 				// hack to force the page not to reload when an error is output - see also Morebits.status() above 				Morebits.wiki.numberOfActionsLeft = 1000;  				// call error callback 				if (Morebits.status.errorEvent) { 					Morebits.status.errorEvent(); 				}  				// also log error messages in the browser console 				console.error(this.textRaw + ': ' + status); // eslint-disable-line no-console 			} 		} 		this.render(); 	},  	/** Produce the html for first part of the status message */ 	generate: function() { 		this.node = document.createElement('div'); 		this.node.appendChild(document.createElement('span')).appendChild(this.text); 		this.node.appendChild(document.createElement('span')).appendChild(document.createTextNode(': ')); 		this.target = this.node.appendChild(document.createElement('span')); 		this.target.appendChild(document.createTextNode('')); // dummy node 	},  	/** Complete the html, for the second part of the status message */ 	render: function() { 		this.node.className = 'morebits_status_' + this.type; 		while (this.target.hasChildNodes()) { 			this.target.removeChild(this.target.firstChild); 		} 		this.target.appendChild(this.stat); 		this.link(); 	}, 	status: function(status) { 		this.update(status, 'status'); 	}, 	info: function(status) { 		this.update(status, 'info'); 	}, 	warn: function(status) { 		this.update(status, 'warn'); 	}, 	error: function(status) { 		this.update(status, 'error'); 	} };  Morebits.status.info = function(text, status) { 	return new Morebits.status(text, status, 'info'); };  Morebits.status.warn = function(text, status) { 	return new Morebits.status(text, status, 'warn'); };  Morebits.status.error = function(text, status) { 	return new Morebits.status(text, status, 'error'); };  /**  * For the action complete message at the end, create a status line without  * a colon separator.  * @param {String} text  */ Morebits.status.actionCompleted = function(text) { 	var node = document.createElement('div'); 	node.appendChild(document.createElement('span')).appendChild(document.createTextNode(text)); 	node.className = 'morebits_status_info'; 	if (Morebits.status.root) { 		Morebits.status.root.appendChild(node); 	} };  /**  * Display the user's rationale, comments, etc. back to them after a failure,  * so that they may re-use it  * @param {string} comments  * @param {string} message  */ Morebits.status.printUserText = function(comments, message) { 	var p = document.createElement('p'); 	p.innerHTML = message; 	var div = document.createElement('div'); 	div.className = 'toccolours'; 	div.style.marginTop = '0'; 	div.style.whiteSpace = 'pre-wrap'; 	div.textContent = comments; 	p.appendChild(div); 	Morebits.status.root.appendChild(p); };    /**  * **************** Morebits.htmlNode() ****************  * Simple helper function to create a simple node  * @param {string} type - type of HTML element  * @param {string} text - text content  * @param {string} [color] - font color  * @returns {HTMLElement}  */ Morebits.htmlNode = function (type, content, color) { 	var node = document.createElement(type); 	if (color) { 		node.style.color = color; 	} 	node.appendChild(document.createTextNode(content)); 	return node; };    /**  * **************** Morebits.checkboxShiftClickSupport() ****************  * shift-click-support for checkboxes  * wikibits version (window.addCheckboxClickHandlers) has some restrictions, and  * doesn't work with checkboxes inside a sortable table, so let's build our own.  */ Morebits.checkboxShiftClickSupport = function (jQuerySelector, jQueryContext) { 	var lastCheckbox = null;  	function clickHandler(event) { 		var thisCb = this; 		if (event.shiftKey && lastCheckbox !== null) { 			var cbs = $(jQuerySelector, jQueryContext); // can't cache them, obviously, if we want to support resorting 			var index = -1, lastIndex = -1, i; 			for (i = 0; i < cbs.length; i++) { 				if (cbs[i] === thisCb) { 					index = i; 					if (lastIndex > -1) { 						break; 					} 				} 				if (cbs[i] === lastCheckbox) { 					lastIndex = i; 					if (index > -1) { 						break; 					} 				} 			}  			if (index > -1 && lastIndex > -1) { 				// inspired by wikibits 				var endState = thisCb.checked; 				var start, finish; 				if (index < lastIndex) { 					start = index + 1; 					finish = lastIndex; 				} else { 					start = lastIndex; 					finish = index - 1; 				}  				for (i = start; i <= finish; i++) { 					if (cbs[i].checked !== endState) { 						cbs[i].click(); 					} 				} 			} 		} 		lastCheckbox = thisCb; 		return true; 	}  	$(jQuerySelector, jQueryContext).click(clickHandler); };    /** **************** Morebits.batchOperation ****************  * Iterates over a group of pages (or arbitrary objects) and executes a worker function  * for each.  *  * Constructor: Morebits.batchOperation(currentAction)  *  * setPageList(wikitext): Sets the list of pages to work on.  *    It should be an array of page names (strings).  *  * setOption(optionName, optionValue): Sets a known option:  *    - chunkSize (integer): the size of chunks to break the array into (default 50).  *          Setting this to a small value (<5) can cause problems.  *    - preserveIndividualStatusLines (boolean): keep each page's status element visible  *          when worker is complete?  See note below  *  * run(worker, postFinish): Runs the callback `worker` for each page in the list.  *    The callback must call workerSuccess when succeeding, or workerFailure  *    when failing.  If using Morebits.wiki.api or Morebits.wiki.page, this is easily  *    done by passing these two functions as parameters to the methods on those  *    objects, for instance, page.save(batchOp.workerSuccess, batchOp.workerFailure).  *    Make sure the methods are called directly if special success/failure cases arise.  *    If you omit to call these methods, the batch operation will stall after the first  *    chunk!  Also ensure that either workerSuccess or workerFailure is called no more  *    than once.  *    The second callback `postFinish` is executed when the entire batch has been processed.  *  * If using preserveIndividualStatusLines, you should try to ensure that the  * workerSuccess callback has access to the page title.  This is no problem for  * Morebits.wiki.page objects.  But when using the API, please set the  * |pageName| property on the Morebits.wiki.api object.  *  * There are sample batchOperation implementations using Morebits.wiki.page in  * twinklebatchdelete.js, twinklebatchundelete.js, and twinklebatchprotect.js.  */  /**  * @constructor  * @param {string} [currentAction]  */ Morebits.batchOperation = function(currentAction) { 	var ctx = { 		// backing fields for public properties 		pageList: null, 		options: { 			chunkSize: 50, 			preserveIndividualStatusLines: false 		},  		// internal counters, etc. 		statusElement: new Morebits.status(currentAction || 'Performing batch operation'), 		worker: null, // function that executes for each item in pageList 		postFinish: null, // function that executes when the whole batch has been processed 		countStarted: 0, 		countFinished: 0, 		countFinishedSuccess: 0, 		currentChunkIndex: -1, 		pageChunks: [], 		running: false 	};  	// shouldn't be needed by external users, but provided anyway for maximum flexibility 	this.getStatusElement = function() { 		return ctx.statusElement; 	};  	/** 	 * Sets the list of pages to work on 	 * @param {Array} pageList  Array of objects over which you wish to execute the worker function 	 * This is usually the list of page names (strings). 	 */ 	this.setPageList = function(pageList) { 		ctx.pageList = pageList; 	};  	/** 	 * Sets a known option: 	 * - chunkSize (integer): 	 *        The size of chunks to break the array into (default 50). 	 *        Setting this to a small value (<5) can cause problems. 	 * - preserveIndividualStatusLines (boolean): 	 *        Keep each page's status element visible when worker is complete? 	 */ 	this.setOption = function(optionName, optionValue) { 		ctx.options[optionName] = optionValue; 	};  	/** 	 * Runs the first callback for each page in the list. 	 * The callback must call workerSuccess when succeeding, or workerFailure when failing. 	 * Runs the second callback when the whole batch has been processed (optional) 	 * @param {Function} worker 	 * @param {Function} [postFinish] 	 */ 	this.run = function(worker, postFinish) { 		if (ctx.running) { 			ctx.statusElement.error('Batch operation is already running'); 			return; 		} 		ctx.running = true;  		ctx.worker = worker; 		ctx.postFinish = postFinish; 		ctx.countStarted = 0; 		ctx.countFinished = 0; 		ctx.countFinishedSuccess = 0; 		ctx.currentChunkIndex = -1; 		ctx.pageChunks = [];  		var total = ctx.pageList.length; 		if (!total) { 			ctx.statusElement.info('no pages specified'); 			ctx.running = false; 			if (ctx.postFinish) { 				ctx.postFinish(); 			} 			return; 		}  		// chunk page list into more manageable units 		ctx.pageChunks = Morebits.array.chunk(ctx.pageList, ctx.options.chunkSize);  		// start the process 		Morebits.wiki.addCheckpoint(); 		ctx.statusElement.status('0%'); 		fnStartNewChunk(); 	};  	/** 	 * To be called by worker before it terminates succesfully 	 * @param {(Morebits.wiki.page|Morebits.wiki.api|string)} arg 	 * This should be the `Morebits.wiki.page` or `Morebits.wiki.api` object used by worker 	 * (for the adjustment of status lines emitted by them). 	 * If no Morebits.wiki.* object is used (eg. you're using mw.Api() or something else), and 	 * `preserveIndividualStatusLines` option is on, give the page name (string) as argument. 	 */ 	this.workerSuccess = function(arg) {  		var createPageLink = function(pageName) { 			var link = document.createElement('a'); 			link.setAttribute('href', mw.util.getUrl(pageName)); 			link.appendChild(document.createTextNode(pageName)); 			return link; 		};  		if (arg instanceof Morebits.wiki.api || arg instanceof Morebits.wiki.page) { 			// update or remove status line 			var statelem = arg.getStatusElement(); 			if (ctx.options.preserveIndividualStatusLines) { 				if (arg.getPageName || arg.pageName || (arg.query && arg.query.title)) { 					// we know the page title - display a relevant message 					var pageName = arg.getPageName ? arg.getPageName() : arg.pageName || arg.query.title; 					statelem.info(['completed (', createPageLink(pageName), ')']); 				} else { 					// we don't know the page title - just display a generic message 					statelem.info('done'); 				} 			} else { 				// remove the status line automatically produced by Morebits.wiki.* 				statelem.unlink(); 			}  		} else if (typeof arg === 'string' && ctx.options.preserveIndividualStatusLines) { 			new Morebits.status(arg, ['done (', createPageLink(arg), ')']); 		}  		ctx.countFinishedSuccess++; 		fnDoneOne(); 	};  	this.workerFailure = function() { 		fnDoneOne(); 	};  	// private functions  	var thisProxy = this;  	var fnStartNewChunk = function() { 		var chunk = ctx.pageChunks[++ctx.currentChunkIndex]; 		if (!chunk) { 			return;  // done! yay 		}  		// start workers for the current chunk 		ctx.countStarted += chunk.length; 		chunk.forEach(function(page) { 			ctx.worker(page, thisProxy); 		}); 	};  	var fnDoneOne = function() { 		ctx.countFinished++;  		// update overall status line 		var total = ctx.pageList.length; 		if (ctx.countFinished === total) { 			var statusString = 'Done (' + ctx.countFinishedSuccess + 				'/' + ctx.countFinished + ' actions completed successfully)'; 			if (ctx.countFinishedSuccess < ctx.countFinished) { 				ctx.statusElement.warn(statusString); 			} else { 				ctx.statusElement.info(statusString); 			} 			if (ctx.postFinish) { 				ctx.postFinish(); 			} 			Morebits.wiki.removeCheckpoint(); 			ctx.running = false; 			return; 		}  		// just for giggles! (well, serious debugging, actually) 		if (ctx.countFinished > total) { 			ctx.statusElement.warn('Done (overshot by ' + (ctx.countFinished - total) + ')'); 			Morebits.wiki.removeCheckpoint(); 			ctx.running = false; 			return; 		}  		ctx.statusElement.status(parseInt(100 * ctx.countFinished / total, 10) + '%');  		// start a new chunk if we're close enough to the end of the previous chunk, and 		// we haven't already started the next one 		if (ctx.countFinished >= (ctx.countStarted - Math.max(ctx.options.chunkSize / 10, 2)) && 			Math.floor(ctx.countFinished / ctx.options.chunkSize) > ctx.currentChunkIndex) { 			fnStartNewChunk(); 		} 	}; };    /**  * **************** Morebits.simpleWindow ****************  * A simple draggable window  * now a wrapper for jQuery UI's dialog feature  * @requires {jquery.ui.dialog}  */  /**  * @constructor  * @param {number} width  * @param {number} height  The maximum allowable height for the content area.  */ Morebits.simpleWindow = function SimpleWindow(width, height) { 	var content = document.createElement('div'); 	this.content = content; 	content.className = 'morebits-dialog-content'; 	content.id = 'morebits-dialog-content-' + Math.round(Math.random() * 1e15);  	this.height = height;  	$(this.content).dialog({ 		autoOpen: false, 		buttons: { 'Placeholder button': function() {} }, 		dialogClass: 'morebits-dialog', 		width: Math.min(parseInt(window.innerWidth, 10), parseInt(width ? width : 800, 10)), 		// give jQuery the given height value (which represents the anticipated height of the dialog) here, so 		// it can position the dialog appropriately 		// the 20 pixels represents adjustment for the extra height of the jQuery dialog "chrome", compared 		// to that of the old SimpleWindow 		height: height + 20, 		close: function(event) { 			// dialogs and their content can be destroyed once closed 			$(event.target).dialog('destroy').remove(); 		}, 		resizeStart: function() { 			this.scrollbox = $(this).find('.morebits-scrollbox')[0]; 			if (this.scrollbox) { 				this.scrollbox.style.maxHeight = 'none'; 			} 		}, 		resizeEnd: function() { 			this.scrollbox = null; 		}, 		resize: function() { 			this.style.maxHeight = ''; 			if (this.scrollbox) { 				this.scrollbox.style.width = ''; 			} 		} 	});  	var $widget = $(this.content).dialog('widget');  	// delete the placeholder button (it's only there so the buttonpane gets created) 	$widget.find('button').each(function(key, value) { 		value.parentNode.removeChild(value); 	});  	// add container for the buttons we add, and the footer links (if any) 	var buttonspan = document.createElement('span'); 	buttonspan.className = 'morebits-dialog-buttons'; 	var linksspan = document.createElement('span'); 	linksspan.className = 'morebits-dialog-footerlinks'; 	$widget.find('.ui-dialog-buttonpane').append(buttonspan, linksspan);  	// resize the scrollbox with the dialog, if one is present 	$widget.resizable('option', 'alsoResize', '#' + this.content.id + ' .morebits-scrollbox, #' + this.content.id); };  Morebits.simpleWindow.prototype = { 	buttons: [], 	height: 600, 	hasFooterLinks: false, 	scriptName: null,  	/** 	 * Focuses the dialog. This might work, or on the contrary, it might not. 	 * @returns {Morebits.simpleWindow} 	 */ 	focus: function() { 		$(this.content).dialog('moveToTop'); 		return this; 	},  	/** 	 * Closes the dialog. If this is set as an event handler, it will stop the event 	 * from doing anything more. 	 * @returns {Morebits.simpleWindow} 	 */ 	close: function(event) { 		if (event) { 			event.preventDefault(); 		} 		$(this.content).dialog('close'); 		return this; 	},  	/** 	 * Shows the dialog. Calling display() on a dialog that has previously been closed 	 * might work, but it is not guaranteed. 	 * @returns {Morebits.simpleWindow} 	 */ 	display: function() { 		if (this.scriptName) { 			var $widget = $(this.content).dialog('widget'); 			$widget.find('.morebits-dialog-scriptname').remove(); 			var scriptnamespan = document.createElement('span'); 			scriptnamespan.className = 'morebits-dialog-scriptname'; 			scriptnamespan.textContent = this.scriptName + ' \u00B7 ';  // U+00B7 MIDDLE DOT = &middot; 			$widget.find('.ui-dialog-title').prepend(scriptnamespan); 		}  		var dialog = $(this.content).dialog('open'); 		if (window.setupTooltips && window.pg && window.pg.re && window.pg.re.diff) {  // tie in with NAVPOP 			dialog.parent()[0].ranSetupTooltipsAlready = false; 			window.setupTooltips(dialog.parent()[0]); 		} 		this.setHeight(this.height);  // init height algorithm 		return this; 	},  	/** 	 * Sets the dialog title. 	 * @param {string} title 	 * @returns {Morebits.simpleWindow} 	 */ 	setTitle: function(title) { 		$(this.content).dialog('option', 'title', title); 		return this; 	},  	/** 	 * Sets the script name, appearing as a prefix to the title to help users determine which 	 * user script is producing which dialog. For instance, Twinkle modules set this to "Twinkle". 	 * @param {string} name 	 * @returns {Morebits.simpleWindow} 	 */ 	setScriptName: function(name) { 		this.scriptName = name; 		return this; 	},  	/** 	 * Sets the dialog width. 	 * @param {number} width 	 * @returns {Morebits.simpleWindow} 	 */ 	setWidth: function(width) { 		$(this.content).dialog('option', 'width', width); 		return this; 	},  	/** 	 * Sets the dialog's maximum height. The dialog will auto-size to fit its contents, 	 * but the content area will grow no larger than the height given here. 	 * @param {number} height 	 * @returns {Morebits.simpleWindow} 	 */ 	setHeight: function(height) { 		this.height = height;  		// from display time onwards, let the browser determine the optimum height, 		// and instead limit the height at the given value 		// note that the given height will exclude the approx. 20px that the jQuery UI 		// chrome has in height in addition to the height of an equivalent "classic" 		// Morebits.simpleWindow 		if (parseInt(getComputedStyle($(this.content).dialog('widget')[0], null).height, 10) > window.innerHeight) { 			$(this.content).dialog('option', 'height', window.innerHeight - 2).dialog('option', 'position', 'top'); 		} else { 			$(this.content).dialog('option', 'height', 'auto'); 		} 		$(this.content).dialog('widget').find('.morebits-dialog-content')[0].style.maxHeight = parseInt(this.height - 30, 10) + 'px'; 		return this; 	},  	/** 	 * Sets the content of the dialog to the given element node, usually from rendering 	 * a Morebits.quickForm. 	 * Re-enumerates the footer buttons, but leaves the footer links as they are. 	 * Be sure to call this at least once before the dialog is displayed... 	 * @param {HTMLElement} content 	 * @returns {Morebits.simpleWindow} 	 */ 	setContent: function(content) { 		this.purgeContent(); 		this.addContent(content); 		return this; 	},  	/** 	 * Adds the given element node to the dialog content. 	 * @param {HTMLElement} content 	 * @returns {Morebits.simpleWindow} 	 */ 	addContent: function(content) { 		this.content.appendChild(content);  		// look for submit buttons in the content, hide them, and add a proxy button to the button pane 		var thisproxy = this; 		$(this.content).find('input[type="submit"], button[type="submit"]').each(function(key, value) { 			value.style.display = 'none'; 			var button = document.createElement('button'); 			button.textContent = value.hasAttribute('value') ? value.getAttribute('value') : value.textContent ? value.textContent : 'Submit Query'; 			button.className = value.className || 'submitButtonProxy'; 			// here is an instance of cheap coding, probably a memory-usage hit in using a closure here 			button.addEventListener('click', function() { 				value.click(); 			}, false); 			thisproxy.buttons.push(button); 		}); 		// remove all buttons from the button pane and re-add them 		if (this.buttons.length > 0) { 			$(this.content).dialog('widget').find('.morebits-dialog-buttons').empty().append(this.buttons)[0].removeAttribute('data-empty'); 		} else { 			$(this.content).dialog('widget').find('.morebits-dialog-buttons')[0].setAttribute('data-empty', 'data-empty');  // used by CSS 		} 		return this; 	},  	/** 	 * Removes all contents from the dialog, barring any footer links 	 * @returns {Morebits.simpleWindow} 	 */ 	purgeContent: function() { 		this.buttons = []; 		// delete all buttons in the buttonpane 		$(this.content).dialog('widget').find('.morebits-dialog-buttons').empty();  		while (this.content.hasChildNodes()) { 			this.content.removeChild(this.content.firstChild); 		} 		return this; 	},  	/** 	 * Adds a link in the bottom-right corner of the dialog. 	 * This can be used to provide help or policy links. 	 * For example, Twinkle's CSD module adds a link to the CSD policy page, 	 * as well as a link to Twinkle's documentation. 	 * @param {string} text  Link's text content 	 * @param {string} wikiPage  Link target 	 * @param {boolean} [prep=false] Set true to prepend rather than append 	 * @returns {Morebits.simpleWindow} 	 */ 	addFooterLink: function(text, wikiPage, prep) { 		var $footerlinks = $(this.content).dialog('widget').find('.morebits-dialog-footerlinks'); 		if (this.hasFooterLinks) { 			var bullet = document.createElement('span'); 			bullet.textContent = ' \u2022 ';  // U+2022 BULLET 			if (prep) { 				$footerlinks.prepend(bullet); 			} else { 				$footerlinks.append(bullet); 			} 		} 		var link = document.createElement('a'); 		link.setAttribute('href', mw.util.getUrl(wikiPage)); 		link.setAttribute('title', wikiPage); 		link.setAttribute('target', '_blank'); 		link.textContent = text; 		if (prep) { 			$footerlinks.prepend(link); 		} else { 			$footerlinks.append(link); 		} 		this.hasFooterLinks = true; 		return this; 	},  	/** 	 * Set whether the window should be modal or not. 	 * If set to true, other items on the page will be disabled, i.e., cannot be 	 * interacted with. Modal dialogs create an overlay below the dialog but above 	 * other page elements. 	 * This must be used (if necessary) before calling display() 	 * Default: false 	 * @param {boolean} modal 	 * @returns {Morebits.simpleWindow} 	 */ 	setModality: function(modal) { 		$(this.content).dialog('option', 'modal', modal); 		return this; 	} };  /**  * Enables or disables all footer buttons on all Morebits.simpleWindows in the current page.  * This should be called with `false` when the button(s) become irrelevant (e.g. just before  * Morebits.status.init is called).  * This is not an instance method so that consumers don't have to keep a reference to the  * original Morebits.simpleWindow object sitting around somewhere. Anyway, most of the time  * there will only be one Morebits.simpleWindow open, so this shouldn't matter.  * @param {boolean} enabled  */ Morebits.simpleWindow.setButtonsEnabled = function(enabled) { 	$('.morebits-dialog-buttons button').prop('disabled', !enabled); };   }(window, document, jQuery)); // End wrap with anonymous function   /**  * If this script is being executed outside a ResourceLoader context, we add some  * global assignments for legacy scripts, hopefully these can be removed down the line  *  * IMPORTANT NOTE:  * PLEASE DO NOT USE THESE ALIASES IN NEW CODE!  * Thanks.  */  if (typeof arguments === 'undefined') {  // typeof is here for a reason... 	/* global Morebits */ 	window.SimpleWindow = Morebits.simpleWindow; 	window.QuickForm = Morebits.quickForm; 	window.Wikipedia = Morebits.wiki; 	window.Status = Morebits.status; }  // </nowiki>