MediaWiki:Gadget-morebits.js: Difference between revisions

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mw.loader.load("https://dev.miraheze.org/w/index.php?title=MediaWiki:Gadget-morebits.js&action=raw&ctype=text/javascript");
// <nowiki>
/**
* morebits.js
* ===========
* A library full of lots of goodness for user scripts on MediaWiki wikis, including Wikipedia.
*
* The highlights include:
* - Morebits.quickForm class - generates quick HTML forms on the fly
* - Morebits.wiki.api class - makes calls to the MediaWiki API
* - Morebits.wiki.page class - modifies pages on the wiki (edit, revert, delete, etc.)
* - Morebits.wikitext class - contains some utilities for dealing with wikitext
* - Morebits.status class - a rough-and-ready status message displayer, used by the Morebits.wiki classes
* - Morebits.simpleWindow class - a wrapper for jQuery UI Dialog with a custom look and extra features
*
* Dependencies:
* - The whole thing relies on jQuery. But most wikis should provide this by default.
* - Morebits.quickForm, Morebits.simpleWindow, and Morebits.status rely on the "morebits.css" file for their styling.
* - Morebits.simpleWindow and Morebits.quickForm tooltips rely on jquery UI Dialog (from ResourceLoader module name 'jquery.ui').
* - To create a gadget based on morebits.js, use this syntax in MediaWiki:Gadgets-definition:
* * GadgetName[ResourceLoader|dependencies=mediawiki.user,mediawiki.util,mediawiki.Title,jquery.ui]|morebits.js|morebits.css|GadgetName.js
* - Alternatively, you can configure morebits.js as a hidden gadget in MediaWiki:Gadgets-definition:
* * morebits[ResourceLoader|dependencies=mediawiki.user,mediawiki.util,mediawiki.Title,jquery.ui|hidden]|morebits.js|morebits.css
* and then load ext.gadget.morebits as one of the dependencies for the new gadget
*
* All the stuff here works on all browsers for which MediaWiki provides JavaScript support.
*
* This library is maintained by the maintainers of Twinkle.
* For queries, suggestions, help, etc., head to [[Wikipedia talk:Twinkle]] on English Wikipedia [http://en.wikipedia.org].
* The latest development source is available at [https://github.com/azatoth/twinkle/blob/master/morebits.js].
*/


(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('type', data.type);
subnode.setAttribute('id', cur_id);
subnode.setAttribute('name', current.name || data.name);

// If name is provided on the individual checkbox, add a data-single
// attribute which indicates it isn't part of a list of checkboxes with
// same name. Used in getInputData()
if (current.name) {
subnode.setAttribute('data-single', 'data-single');
}

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);
}
}
}
if (data.shiftClickSupport && data.type === 'checkbox') {
Morebits.checkboxShiftClickSupport(Morebits.quickForm.getElements(node, data.name));
}
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 ];
};

/**
* Create a jquery.ui-based tooltip.
* @requires jquery.ui
* @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) {
var tooltipButton = node.appendChild(document.createElement('span'));
tooltipButton.className = 'morebits-tooltipButton';
tooltipButton.title = data.tooltip; // Provides the content for jQuery UI
tooltipButton.appendChild(document.createTextNode('?'));
$(tooltipButton).tooltip({
position: { my: 'left top', at: 'center bottom', collision: 'flipfit' },
// Deprecated in UI 1.12, but MW stuck on 1.9.2 indefinitely; see #398 and T71386
tooltipClass: 'morebits-ui-tooltip'
});
};


// Some utility methods for manipulating quickForms after their creation:
// (None of these work for "dyninput" type fields at present)

/**
* Returns an object containing all filled form data entered by the user, with the object
* keys being the form element names. Disabled fields will be ignored, but not hidden fields.
* @param {HTMLFormElement} form
* @returns {Object} with field names as keys, input data as values
*/
Morebits.quickForm.getInputData = function(form) {
var result = {};

for (var i = 0; i < form.elements.length; i++) {
var field = form.elements[i];
if (field.disabled || !field.name || !field.type ||
field.type === 'submit' || field.type === 'button') {
continue;
}

// For elements in subgroups, quickform prepends element names with
// name of the parent group followed by a period, get rid of that.
var fieldNameNorm = field.name.slice(field.name.indexOf('.') + 1);

switch (field.type) {
case 'radio':
if (field.checked) {
result[fieldNameNorm] = field.value;
}
break;
case 'checkbox':
if (field.dataset.single) {
result[fieldNameNorm] = field.checked; // boolean
} else {
result[fieldNameNorm] = result[fieldNameNorm] || [];
if (field.checked) {
result[fieldNameNorm].push(field.value);
}
}
break;
case 'select-multiple':
result[fieldNameNorm] = $(field).val(); // field.value doesn't work
break;
case 'text': // falls through
case 'textarea':
result[fieldNameNorm] = field.value.trim();
break;
default: // could be select-one, date, number, email, etc
if (field.value) {
result[fieldNameNorm] = field.value;
}
break;
}
}
return result;
};


/**
* 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);
fieldName = $.escapeSelector(fieldName); // sanitize input
var $elements = $form.find('[name="' + fieldName + '"]');
if ($elements.length > 0) {
return $elements.toArray();
}
$elements = $form.find('#' + fieldName);
return $elements.toArray();
};

/**
* 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-tooltipButton').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.
*/
HTMLFormElement.prototype.getChecked = function(name, type) {
var elements = this.elements[name];
if (!elements) {
return [];
}
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) {
return [];
}
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;
};


/**
* @deprecated as of September 2020, use Morebits.string.escapeRegExp or
* mw.util.escapeRegExp
*/
RegExp.escape = function(text, space_fix) {
if (space_fix) {
console.log('NOTE: RegExp.escape from Morebits was deprecated September 2020, please replace it with Morebits.string.escapeRegExp'); // eslint-disable-line no-console
return Morebits.string.escapeRegExp(text);
}
console.log('NOTE: RegExp.escape from Morebits was deprecated September 2020, please replace it with mw.util.escapeRegExp'); // eslint-disable-line no-console
return mw.util.escapeRegExp(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();
},

/**
* Formats a "reason" (from a textarea) for inclusion in a userspace log
* @param {string} str
* @returns {string}
*/
formatReasonForLog: function(str) {
return str
// handle line breaks, which otherwise break numbering
.replace(/\n+/g, '{{pb}}')
// put an extra # in front before bulleted or numbered list items
.replace(/^(#+)/mg, '#$1')
.replace(/^(\*+)/mg, '#$1');
},

/**
* 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, '$$$$'));
},

/**
* Determine if user input expiration will be translated to an
* infinite-length by MW: https://phabricator.wikimedia.org/T68646
* @param {string} expiry
* @returns {boolean}
*/
isInfinity: function morebitsStringIsInfinity(expiry) {
return ['indefinite', 'infinity', 'infinite', 'never'].indexOf(expiry) !== -1;
},

/**
* Escapes a string to be used in a RegExp, replacing spaces and
* underscores with `[ _]` as they are often equivalent
* Replaced RegExp.escape September 2020
* @param {string} text - string to be escaped
* @returns {string} - the escaped text
*/
escapeRegExp: function(text) {
return mw.util.escapeRegExp(text).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';
}
return arr.filter(function(item, idx) {
return arr.indexOf(item) === idx;
});
},

/**
* @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';
}
return arr.filter(function(item, idx) {
return arr.indexOf(item) !== idx;
});
},


/**
* 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 numChunks = Math.ceil(arr.length / size);
var result = new Array(numChunks);
for (var i = 0; i < numChunks; i++) {
result[i] = arr.slice(i * size, (i + 1) * size);
}
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;
};
};



/**
* **************** 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);

// Date.parse implementations vary too much between browsers, and
// MediaWiki's format is too non-standard, so we just convert MW
// timestamps to ISO-8601. A paren-wrapped 'UTC' messes everyone up,
// and the comma after the time is only okay in modern Firefox. After
// this first replace, Chrome and Firefox are content. The second
// replace is mainly for Safari, which basically *only* accepts the
// simplified ECMA-262 implementation of ISO-8601.
if (typeof args[0] === 'string') {
args[0] = args[0].replace(/(\d\d:\d\d),/, '$1').replace(/\(UTC\)/, 'UTC');
// Safari is particular about timezone offsets, so this is intentionally specific
args[0] = args[0].replace(/(\d\d:\d\d) (\d{1,2}) ([A-Z][a-z]+) (\d{4}) UTC$/, function(match, time, date, monthname, year) {
// zero-pad date
if (date.length === 1) {
date = '0' + date;
}
return [year, mw.config.get('wgMonthNames').indexOf(monthname), date].join('-') + 'T' + time + 'Z';
});
}
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 section header with the month and year.
* @param {number} [level=2] - Header level (default 2). Pass 0 for
* just the text with no wikitext markers (==)
* @returns {string}
*/
monthHeader: function(level) {
// Default to 2, but allow for 0 or stringy numbers
level = parseInt(level, 10);
level = isNaN(level) ? 2 : level;

var header = Array(level + 1).join('='); // String.prototype.repeat not supported in IE 11
var text = this.getUTCMonthName() + ' ' + this.getUTCFullYear();

if (header.length) { // wikitext-formatted header
return header + ' ' + text + ' ' + header;
}
return text; // Just the string

}

});


/**
* **************** 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 (query.format === 'json' && !query.formatversion) {
this.query.formatversion = '2';
} else if (['xml', 'json'].indexOf(query.format) === -1) {
this.statelem.error('Invalid API format: only xml and json are supported.');
}

// Ignore tags for queries and most common unsupported actions, produces warnings
if (query.action && ['query', 'review', 'stabilize', 'pagetriageaction', 'watch'].indexOf(query.action) !== -1) {
delete query.tags;
} else if (!query.tags && morebitsWikiChangeTag) {
query.tags = morebitsWikiChangeTag;
}
};

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
badtokenRetry: false, // set to true if this on a retry attempted after a badtoken error

/**
* 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: this.query.action === 'query' ? 'GET' : '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(callerAjaxParameters);
}

// 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(callerAjaxParameters) {
if (this.errorCode === 'badtoken' && !this.badtokenRetry) {
this.statelem.warn('Invalid token. Getting a new token and retrying...');
this.badtokenRetry = true;
// Get a new CSRF token and retry. If the original action needs a different
// type of action than CSRF, we do one pointless retry before bailing out
return Morebits.wiki.api.getToken().then(function(token) {
this.query.token = token;
return this.post(callerAjaxParameters);
}.bind(this));
}

this.statelem.error(this.errorText + ' (' + this.errorCode + ')');

// 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 ([[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 ([[w:WT:TW]])';
};

// Default change/revision tag applied to Morebits actions when no other tags are specified
// Off by default per [[Special:Permalink/970618849#Adding tags to Twinkle edits and actions]]
var morebitsWikiChangeTag = '';


/** Get a new CSRF token on encountering token errors */
Morebits.wiki.api.getToken = function() {
var tokenApi = new Morebits.wiki.api('Getting token', {
action: 'query',
meta: 'tokens',
type: 'csrf'
});
return tokenApi.post().then(function(apiobj) {
return $(apiobj.responseXML).find('tokens').attr('csrftoken');
});
};


/**
* **************** 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.
*
* newSection([onSuccess], [onFailure]): Creates a new section with the text provided via setNewSectionText()
* and section title via setNewSetionTitle(). 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
*
* setNewSectionText(newSectionText) sets the text that will be added in a new section when newSection() is called
*
* setNewSectionTitle(newSectionTitle) sets the title for the new section when newSection() 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 and newSection):
* .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/newSection 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,
changeTags: 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
newSectionText: null,
newSectionTitle: null,
createOption: null,
minorEdit: false,
botEdit: false,
pageSection: null,
maxConflictRetries: 2,
maxRetries: 2,
followRedirect: false,
followCrossNsRedirect: true,
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) {
// new section mode allows (nay, encourages) using the
// title as the edit summary, but the query needs
// editSummary to be undefined or '', not null
if (ctx.editMode === 'new' && ctx.newSectionTitle) {
ctx.editSummary = '';
} else {
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 (ctx.changeTags) {
query.tags = ctx.changeTags;
}

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':
if (ctx.appendText === null) {
ctx.statusElement.error('Internal error: append text not set before save!');
ctx.onSaveFailure(this);
return;
}
query.appendtext = ctx.appendText; // use mode to append to current page contents
break;
case 'prepend':
if (ctx.prependText === null) {
ctx.statusElement.error('Internal error: prepend text not set before save!');
ctx.onSaveFailure(this);
return;
}
query.prependtext = ctx.prependText; // use mode to prepend to current page contents
break;
case 'new':
if (!ctx.newSectionText) { // API doesn't allow empty new section text
ctx.statusElement.error('Internal error: new section text not set before save!');
ctx.onSaveFailure(this);
return;
}
query.section = 'new';
query.text = ctx.newSectionText; // add a new section to current page
query.sectiontitle = ctx.newSectionTitle || ctx.editSummary; // done by the API, but non-'' values would get treated as text
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);
}
};

/**
* Creates a new section with the text provided by setNewSectionText()
* and section title from setNewSectionTitle()
* If editSummary is provided, that will be used instead of the
* autogenerated "->Title (new section" edit summary
* 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.newSection = function(onSuccess, onFailure) {
ctx.editMode = 'new';

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;
};

/** @param {string} newSectionText - text that will be added in a new section on the page when newSection() is called */
this.setNewSectionText = function(newSectionText) {
ctx.editMode = 'new';
ctx.newSectionText = newSectionText;
};

/**
* @param {string} newSectionTitle - title for the new section created when newSection() is called
* If missing, ctx.editSummary will be used. Issues may occur if a substituted template is used
*/
this.setNewSectionTitle = function(newSectionTitle) {
ctx.editMode = 'new';
ctx.newSectionTitle = newSectionTitle;
};



// Edit-related setter methods:
/**
* @param {string} summary - text of the edit summary that will be used when save() is called
* Unnecessary if editMode is 'new' and newSectionTitle is provided
*/
this.setEditSummary = function(summary) {
ctx.editSummary = summary;
};

/**
* Set any custom tag(s) to be applied to the API action
* A number of actions don't support it, most notably watch, review
* and stabilize (T247721), and pagetriageaction (T252980)
*
* @param {string|string[]} tags - String or array of tag(s)
*/
this.setChangeTags = function(tags) {
ctx.changeTags = tags;
};


/**
* @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 - (default) the requested pageName will be used without regard to any
* redirect.
* @param {boolean} followCrossNsRedirect
* Not applicable if followRedirect is not set true.
* true - (default) follow redirect even if it is a cross-namespace redirect
* false - don't follow redirect if it is cross-namespace, edit the redirect itself
*/
this.setFollowRedirect = function(followRedirect, followCrossNsRedirect) {
if (ctx.pageLoaded) {
ctx.statusElement.error('Internal error: cannot change redirect setting after the page has been loaded!');
return;
}
ctx.followRedirect = followRedirect;
ctx.followCrossNsRedirect = typeof followCrossNsRedirect !== 'undefined' ? followCrossNsRedirect : ctx.followCrossNsRedirect;
};

// 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
/**
* @param {string} level The right required for the specific action
* e.g. autoconfirmed, sysop, templateeditor, extendedconfirmed (enWiki)
* @param {string} [expiry=infinity]
*/
this.setEditProtection = function(level, expiry) {
ctx.protectEdit = { level: level, expiry: expiry || 'infinity' };
};

this.setMoveProtection = function(level, expiry) {
ctx.protectMove = { level: level, expiry: expiry || 'infinity' };
};

this.setCreateProtection = function(level, expiry) {
ctx.protectCreate = { level: level, expiry: expiry || 'infinity' };
};

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=infinity]
*/
this.setFlaggedRevs = function(level, expiry) {
ctx.flaggedRevs = { level: level, expiry: expiry || 'infinity' };
};

/**
* @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(new mw.Title(ctx.pageName).getNamespaceId()) === -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).
*
* Currently used for append, prepend, newSection, move, stabilize,
* deletePage, and undeletePage. 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/new modes
if (ctx.followRedirect) {
if (!ctx.followCrossNsRedirect) {
return false; // must load the page to check for cross namespace redirects
}
if (action !== 'edit' || (ctx.editMode === 'all' || ctx.editMode === 'revert')) {
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(), prepend(), and newSection() 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');

if ($(xml).find('redirects').length > 0) {
// check for cross-namespace redirect:
var origNs = new mw.Title(ctx.pageName).namespace;
var newNs = new mw.Title(resolvedName).namespace;
if (origNs !== newNs && !ctx.followCrossNsRedirect) {
ctx.statusElement.error(ctx.pageName + ' is a cross-namespace redirect to ' + resolvedName + ', aborted');
onFailure(this);
return false;
}

// only notify user for redirects, not normalization
Morebits.status.info('Info', 'Redirected from ' + ctx.pageName + ' to ' + resolvedName);
}

ctx.pageName = resolvedName; // update to redirect target or normalized name

} 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
};

// callback from saveApi.post()
var fnSaveSuccess = function() {
ctx.editMode = 'all'; // cancel append/prepend/newSection/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, prepend, or newSection, so this should work as desired
} else {
ctx.loadApi.post(); // reload the page and reapply the edit
}
}, ctx.statusElement);
purgeApi.post();

// check for network or server error
} else if ((errorCode === null || errorCode === undefined) && ctx.retries++ < ctx.maxRetries) {

// the error might be transient, so try again
ctx.statusElement.info('Save failed, retrying in 2 seconds ...');
--Morebits.wiki.numberOfActionsLeft; // allow for normal completion if retry succeeds

// wait for sometime for client to regain connnectivity
sleep(2000).then(function() {
ctx.saveApi.post(); // give it another go!
});

// hard error, give up
} else {

switch (errorCode) {

case 'protectedpage':
// non-admin attempting to edit a protected page - this gives a friendlier message than the default
ctx.statusElement.error('Failed to save edit: Page is protected');
break;

case 'abusefilter-disallowed':
ctx.statusElement.error('The edit was disallowed by the edit filter: "' + $(ctx.saveApi.getXML()).find('abusefilter').attr('description') + '".');
break;

case 'abusefilter-warning':
ctx.statusElement.error([ 'A warning was returned by the edit filter: "', $(ctx.saveApi.getXML()).find('abusefilter').attr('description'), '". 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
break;

case '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');
break;

default:
ctx.statusElement.error('Failed to save edit: ' + ctx.saveApi.getErrorText());
}

ctx.editMode = 'all'; // cancel append/prepend/newSection/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.changeTags) {
query.tags = ctx.changeTags;
}

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;
}
if (ctx.changeTags) {
query.tags = ctx.changeTags;
}

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,
// tags: ctx.changeTags, // pagetriage tag support: [[phab:T252980]]
// Could use an adder to modify/create note:
// summaryAd, but that seems overwrought
token: token
};

var triageStat = new Morebits.status('Marking page as curated');

ctx.triageProcessApi = new Morebits.wiki.api('curating page...', query, fnProcessTriageSuccess, triageStat, fnProcessTriageError);
ctx.triageProcessApi.setParent(this);
ctx.triageProcessApi.post();
};

// callback from triageProcessApi.post()
var fnProcessTriageSuccess = function() {
// Swallow succesful return if nothing changed i.e. page in queue and already triaged
if ($(ctx.triageProcessApi.getResponse()).find('pagetriageaction').attr('pagetriage_unchanged_status')) {
ctx.triageProcessApi.getStatusElement().unlink();
}
};

// 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
};
if (ctx.changeTags) {
query.tags = ctx.changeTags;
}


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 === '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
};
if (ctx.changeTags) {
query.tags = ctx.changeTags;
}


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') {
if (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 {
ctx.statusElement.error('Repeated database query error, please try again');
if (ctx.onUndeleteFailure) {
ctx.onUndeleteFailure.call(this, ctx.undeleteProcessApi); // invoke callback
}
}
} 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
};
// Only shows up in logs, not page history [[phab:T259983]]
if (ctx.changeTags) {
query.tags = ctx.changeTags;
}

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,
// tags: ctx.changeTags, // flaggedrevs tag support: [[phab:T247721]]
reason: ctx.editSummary,
watchlist: ctx.watchlistOption
};

ctx.stabilizeProcessApi = new Morebits.wiki.api('configuring stabilization settings...', query, ctx.onStabilizeSuccess, ctx.statusElement, ctx.onStabilizeFailure);
ctx.stabilizeProcessApi.setParent(this);
ctx.stabilizeProcessApi.post();
};

var sleep = function(milliseconds) {
var deferred = $.Deferred();
setTimeout(deferred.resolve, milliseconds);
return deferred;
};

}; // 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
* @param {string} [sectionTitle] - if provided, render the text as a new section using this as the title
*/
this.beginRender = function(wikitext, pageTitle, sectionTitle) {
$(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'),
disablelimitreport: true
};
if (sectionTitle) {
query.section = 'new';
query.sectiontitle = sectionTitle;
}
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 = {};

/**
* Get the value of every parameter found in a given template
* @param {string} text Wikitext containing a template
* @param {number} [start=0] Index noting where in the text the template begins
* @returns {Object} {name: templateName, parameters: {key: value}}
*/
Morebits.wikitext.parseTemplate = function(text, start) {
start = start || 0;

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
*
* @returns {Morebits.wikitext.page}
*/
removeLink: function(link_target) {
var first_char = link_target.substr(0, 1);
var link_re_string = '[' + first_char.toUpperCase() + first_char.toLowerCase() + ']' + Morebits.string.escapeRegExp(link_target.substr(1));

// 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');
return this;
},

/**
* 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
*
* @returns {Morebits.wikitext.page}
*/
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() + ']' + Morebits.string.escapeRegExp(image.substr(1));

// 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();
return this;
},

/**
* Converts first usage of [[File:`image`]] to [[File:`image`|`data`]]
* @param {string} image - Image name without File: prefix
* @param {string} data
*
* @returns {Morebits.wikitext.page}
*/
addToImageComment: function(image, data) {
var first_char = image.substr(0, 1);
var first_char_regex = Morebits.string.escapeRegExp(first_char);
if (first_char.toUpperCase() !== first_char.toLowerCase()) {
first_char_regex = '[' + Morebits.string.escapeRegExp(first_char.toUpperCase()) + Morebits.string.escapeRegExp(first_char.toLowerCase()) + ']';
}
var image_re_string = '(?:[Ii]mage|[Ff]ile):\\s*' + first_char_regex + Morebits.string.escapeRegExp(image.substr(1));
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);
return this;
},

/**
* 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
*
* @returns {Morebits.wikitext.page}
*/
removeTemplate: function(template) {
var first_char = template.substr(0, 1);
var template_re_string = '(?:[Tt]emplate:)?\\s*[' + first_char.toUpperCase() + first_char.toLowerCase() + ']' + Morebits.string.escapeRegExp(template.substr(1));
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');
}
}
return this;
},

/**
* Smartly insert a tag atop page text but after specified templates,
* such as hatnotes, short description, or deletion and protection templates.
* Notably, does *not* insert a newline after the tag
*
* @param {string} tag - The tag to be inserted
* @param {string|string[]} regex - Templates after which to insert tag,
* given as either as a (regex-valid) string or an array to be joined by pipes
* @param {string} [flags=i] - Regex flags to apply. Optional, defaults to /i
* @param {string|string[]} preRegex - Optional regex string or array to match
* before any template matches (i.e. before `{{`), such as html comments
*
* @returns {Morebits.wikitext.page}
*/
insertAfterTemplates: function(tag, regex, flags, preRegex) {
if (typeof tag === 'undefined') {
throw new Error('No tag provided');
}

// .length is only a property of strings and arrays so we
// shouldn't need to check type
if (typeof regex === 'undefined' || !regex.length) {
throw new Error('No regex provided');
} else if (Array.isArray(regex)) {
regex = regex.join('|');
}

flags = flags || 'i';

if (!preRegex || !preRegex.length) {
preRegex = '';
} else if (Array.isArray(preRegex)) {
preRegex = preRegex.join('|');
}


// Regex is extra complicated to allow for templates with
// parameters and to handle whitespace properly
this.text = this.text.replace(
new RegExp(
// leading whitespace
'^\\s*' +
// capture template(s)
'(?:((?:\\s*' +
// Pre-template regex, such as leading html comments
preRegex + '|' +
// begin template format
'\\{\\{\\s*(?:' +
// Template regex
regex +
// end main template name, optionally with a number
// Probably remove the (?:) though
')\\d*\\s*' +
// template parameters
'(\\|(?:\\{\\{[^{}]*\\}\\}|[^{}])*)?' +
// end template format
'\\}\\})+' +
// end capture
'(?:\\s*\\n)?)' +
// trailing whitespace
'\\s*)?',
flags), '$1' + tag
);
return this;
},

/** @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.changeTags = '';

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.setChangeTags(this.changeTags);
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('b')).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) {
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();
}
} else 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;
} else {
// ctx.countFinished > total
// just for giggles! (well, serious debugging, actually)
ctx.statusElement.warn('Done (overshot by ' + (ctx.countFinished - total) + ')');
Morebits.wiki.removeCheckpoint();
ctx.running = false;
}
};
};

/** ********** Morebits.taskManager ****************
*
* Given a set of asynchronous functions to run along with their dependencies,
* Morebits.taskManager figures out an efficient sequence of running them so
* that multiple functions that don't depend on each other are triggered
* simultaneously. Where dependencies exist, it ensures that the dependency
* functions finish running before the dependent function runs. The values
* resolved by the dependencies are made available to the dependant as arguments.
*/
Morebits.taskManager = function() {
this.taskDependencyMap = new Map();
this.deferreds = new Map();
this.allDeferreds = []; // Hack: IE doesn't support Map.prototype.values

/**
* Register a task along with its dependencies (tasks which should have finished
* execution before we can begin this one). Each task is a function that must return
* a promise. The function will get the values resolved by the dependency functions
* as arguments.
* @param {function} func - a task
* @param {function[]} deps - its dependencies
*/
this.add = function(func, deps) {
this.taskDependencyMap.set(func, deps);
var deferred = $.Deferred();
this.deferreds.set(func, deferred);
this.allDeferreds.push(deferred);
};

/**
* Run all the tasks. Multiple tasks may be run at once.
*/
this.execute = function() {
var self = this; // proxy for `this` for use inside functions where `this` is something else
this.taskDependencyMap.forEach(function(deps, task) {
var dependencyPromisesArray = deps.map(function(dep) {
return self.deferreds.get(dep);
});
$.when.apply(null, dependencyPromisesArray).then(function() {
task.apply(null, arguments).then(function() {
self.deferreds.get(task).resolve.apply(null, arguments);
});
});
});
return $.when.apply(null, this.allDeferreds); // resolved when everything is done!
};

};

/**
* **************** 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>

Latest revision as of 00:12, 8 December 2021

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