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 relies on jquery UI Dialog (ResourceLoader module name 'jquery.ui.dialog').
* - Morebits.quickForm tooltips rely on Tipsy (ResourceLoader module name 'jquery.tipsy').
* For external installations, Tipsy is available at [http://onehackoranother.com/projects/jquery/tipsy].
* - To create a gadget based on morebits.js, use this syntax in MediaWiki:Gadgets-definition:
* * GadgetName[ResourceLoader|dependencies=mediawiki.user,mediawiki.util,mediawiki.RegExp,jquery.ui.dialog,jquery.tipsy]|morebits.js|morebits.css|GadgetName.js
*
* Most of the stuff here doesn't work on IE < 9. It is your script's responsibility to enforce this.
*
* 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, $, undefined ) { // 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;
};



/**
* **************** 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.
*/
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
* 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, 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, 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 {*} eventType
*/
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 {Morebits.quickForm.element} data
*/
Morebits.quickForm.prototype.append = function QuickFormAppend( data ) {
return this.root.append( data );
};

/**
* @constructor
* @param {Object}
*/
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.userIsInGroup( 'sysop' ) ) {
// 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 );
}
select.setAttribute( 'name', data.name );

if( data.list ) {
for( i = 0; i < data.list.length; ++i ) {

current = data.list[i];

if( current.list ) {
current.type = 'optgroup';
} else {
current.type = 'option';
}

subnode = this.compute( current );
select.appendChild( subnode[0] );
}
}
childContainder = select;
break;
case 'option':
node = document.createElement( 'option' );
node.values = data.value;
node.setAttribute( 'value', data.value );
if( data.selected ) {
node.setAttribute( 'selected', 'selected' );
}
if( data.disabled ) {
node.setAttribute( 'disabled', 'disabled' );
}
node.setAttribute( 'label', data.label );
node.appendChild( document.createTextNode( data.label ) );
break;
case 'optgroup':
node = document.createElement( 'optgroup' );
node.setAttribute( 'label', data.label );

if( data.list ) {
for( i = 0; i < data.list.length; ++i ) {

current = data.list[i];
current.type = 'option'; //must be options here

subnode = this.compute( current );
node.appendChild( subnode[0] );
}
}
break;
case 'field':
node = document.createElement( 'fieldset' );
label = node.appendChild( document.createElement( 'legend' ) );
label.appendChild( document.createTextNode( data.label ) );
if( data.name ) {
node.setAttribute( 'name', data.name );
}
if( data.disabled ) {
node.setAttribute( 'disabled', 'disabled' );
}
break;
case 'checkbox':
case 'radio':
node = document.createElement( 'div' );
if( data.list ) {
for( i = 0; i < data.list.length; ++i ) {
var cur_id = id + '_' + i;
current = data.list[i];
var cur_div;
if( current.type === 'header' ) {
// inline hack
cur_div = node.appendChild( document.createElement( 'h6' ) );
cur_div.appendChild( document.createTextNode( current.label ) );
if( current.tooltip ) {
Morebits.quickForm.element.generateTooltip( cur_div , current );
}
continue;
}
cur_div = node.appendChild( document.createElement( 'div' ) );
subnode = cur_div.appendChild( document.createElement( 'input' ) );
subnode.values = current.value;
subnode.setAttribute( 'value', current.value );
subnode.setAttribute( 'name', current.name || data.name );
subnode.setAttribute( 'type', data.type );
subnode.setAttribute( 'id', cur_id );

if( current.checked ) {
subnode.setAttribute( 'checked', 'checked' );
}
if( current.disabled ) {
subnode.setAttribute( 'disabled', 'disabled' );
}
label = cur_div.appendChild( document.createElement( 'label' ) );
label.appendChild( document.createTextNode( current.label ) );
label.setAttribute( 'for', cur_id );
if( current.tooltip ) {
Morebits.quickForm.element.generateTooltip( label, current );
}
// styles go on the label, doesn't make sense to style a checkbox/radio
if( current.style ) {
label.setAttribute( 'style', current.style );
}

var event;
if( current.subgroup ) {
var tmpgroup = current.subgroup;

if( ! Array.isArray( tmpgroup ) ) {
tmpgroup = [ tmpgroup ];
}

var subgroupRaw = new Morebits.quickForm.element({
type: 'div',
id: id + '_' + i + '_subgroup'
});
$.each( tmpgroup, function( idx, el ) {
var newEl = $.extend( {}, el );
if( ! newEl.type ) {
newEl.type = data.type;
}
newEl.name = (current.name || data.name) + '.' + newEl.name;
subgroupRaw.append( newEl );
} );

var subgroup = subgroupRaw.render( cur_id );
subgroup.className = "quickformSubgroup";
subnode.subgroup = subgroup;
subnode.shown = false;

event = function(e) {
if( e.target.checked ) {
e.target.parentNode.appendChild( e.target.subgroup );
if( e.target.type === 'radio' ) {
var name = e.target.name;
if( e.target.form.names[name] !== undefined ) {
e.target.form.names[name].parentNode.removeChild( e.target.form.names[name].subgroup );
}
e.target.form.names[name] = e.target;
}
} else {
e.target.parentNode.removeChild( e.target.subgroup );
}
};
subnode.addEventListener( 'change', event, true );
if( current.checked ) {
subnode.parentNode.appendChild( subgroup );
}
} else if( data.type === 'radio' ) {
event = function(e) {
if( e.target.checked ) {
var name = e.target.name;
if( e.target.form.names[name] !== undefined ) {
e.target.form.names[name].parentNode.removeChild( e.target.form.names[name].subgroup );
}
delete e.target.form.names[name];
}
};
subnode.addEventListener( 'change', event, true );
}
// add users' event last, so it can interact with the subgroup
if( data.event ) {
subnode.addEventListener( 'change', data.event, false );
} else if ( current.event ) {
subnode.addEventListener( 'change', current.event, true );
}
}
}
break;
case 'input':
node = document.createElement( 'div' );
node.setAttribute( 'id', 'div_' + id );

if( data.label ) {
label = node.appendChild( document.createElement( 'label' ) );
label.appendChild( document.createTextNode( data.label ) );
label.setAttribute( 'for', id );
}

subnode = node.appendChild( document.createElement( 'input' ) );
if( data.value ) {
subnode.setAttribute( 'value', data.value );
}
subnode.setAttribute( 'name', data.name );
subnode.setAttribute( 'id', id );
subnode.setAttribute( 'type', 'text' );
if( data.size ) {
subnode.setAttribute( 'size', data.size );
}
if( data.disabled ) {
subnode.setAttribute( 'disabled', 'disabled' );
}
if( data.readonly ) {
subnode.setAttribute( 'readonly', 'readonly' );
}
if( data.maxlength ) {
subnode.setAttribute( 'maxlength', data.maxlength );
}
if( data.event ) {
subnode.addEventListener( 'keyup', data.event, false );
}
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' ) );
label.appendChild( document.createTextNode( data.label ) );
// TODO need to nest a <label> tag in here without creating extra vertical space
//label.setAttribute( 'for', id );
}
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.readonly ) {
subnode.setAttribute( 'readonly', 'readonly' );
}
if( data.value ) {
subnode.value = data.value;
}
break;
default:
throw new Error("Morebits.quickForm: unknown element type " + data.type.toString());
}

if( !childContainder ) {
childContainder = node;
}
if( data.tooltip ) {
Morebits.quickForm.element.generateTooltip( label || node , data );
}

if( data.extra ) {
childContainder.extra = data.extra;
}
if( data.style ) {
childContainder.setAttribute( 'style', data.style );
}
if( data.className ) {
childContainder.className = ( childContainder.className ?
childContainder.className + " " + data.className :
data.className );
}
childContainder.setAttribute( 'id', data.id || id );

return [ node, childContainder ];
};

Morebits.quickForm.element.autoNWSW = function() {
return $(this).offset().top > ($(document).scrollTop() + $(window).height() / 2) ? 'sw' : 'nw';
};

/**
* @param {HTMLElement} node
* @param {Object} data
*/
Morebits.quickForm.element.generateTooltip = function QuickFormElementGenerateTooltip( node, data ) {
$('<span/>', {
'class': 'ui-icon ui-icon-help ui-icon-inline morebits-tooltip'
}).appendTo(node).tipsy({
'fallback': data.tooltip,
'fade': true,
'gravity': (data.type === "input" || data.type === "select") ?
Morebits.quickForm.element.autoNWSW : $.fn.tipsy.autoWE,
'html': true,
'delayOut': 250
});
};


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


/**
* Returns all form elements with a given field name or ID
* @returns {HTMLElement[]}
*/
Morebits.quickForm.getElements = function QuickFormGetElements(form, fieldName) {
var $form = $(form);
var $elements = $form.find('[name="' + fieldName + '"]');
if ($elements.length > 0) {
return $elements.toArray();
}
$elements = $form.find('#' + fieldName);
if ($elements.length > 0) {
return $elements.toArray();
}
return null;
};

/**
* Searches the array of elements for a checkbox or radio button with a certain
* `value` attribute, and returns the first such element. Returns null if not found.
* @param {HTMLInputElement[]} elementArray
* @param {string} value
* @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
} else {
return element.parentNode.getElementsByTagName("label")[0];
}
};

/**
* Gets the label text of the element
* @param {(HTMLElement|Morebits.quickForm.element)} element
* @returns {string}
*/
Morebits.quickForm.getElementLabel = function QuickFormGetElementLabel(element) {
var labelElement = Morebits.quickForm.getElementLabelObject(element);

if (!labelElement) {
return null;
}
return labelElement.firstChild.textContent;
};

/**
* Sets the label of the element to the given text
* @param {(HTMLElement|Morebits.quickForm.element)} element
* @param {string} labelText
* @returns {boolean} true if succeeded, false if the label element is unavailable
*/
Morebits.quickForm.setElementLabel = function QuickFormSetElementLabel(element, labelText) {
var labelElement = Morebits.quickForm.getElementLabelObject(element);

if (!labelElement) {
return false;
}
labelElement.firstChild.textContent = labelText;
return true;
};

/**
* Stores the element's current label, and temporarily sets the label to the given text
* @param {(HTMLElement|Morebits.quickForm.element)} element
* @param {string} temporaryLabelText
* @returns {boolean} true if succeeded, false if the label element is unavailable
*/
Morebits.quickForm.overrideElementLabel = function QuickFormOverrideElementLabel(element, temporaryLabelText) {
if (!element.hasAttribute("data-oldlabel")) {
element.setAttribute("data-oldlabel", Morebits.quickForm.getElementLabel(element));
}
return Morebits.quickForm.setElementLabel(element, temporaryLabelText);
};

/**
* Restores the label stored by overrideElementLabel
* @param {(HTMLElement|Morebits.quickForm.element)} element
* @returns {boolean} true if succeeded, false if the label element is unavailable
*/
Morebits.quickForm.resetElementLabel = function QuickFormResetElementLabel(element) {
if (element.hasAttribute("data-oldlabel")) {
return Morebits.quickForm.setElementLabel(element, element.getAttribute("data-oldlabel"));
}
return null;
};

/**
* Shows or hides a form element plus its label and tooltip
* @param {(HTMLElement|jQuery|string)} element HTML/jQuery element, or jQuery selector string
* @param {boolean} [visibility] Skip this to toggle visibility
*/
Morebits.quickForm.setElementVisibility = function QuickFormSetElementVisibility(element, visibility) {
$(element).toggle(visibility);
};

/**
* Shows or hides the "question mark" icon (which displays the tooltip) next to a form element
* @param {(HTMLElement|jQuery)} element
* @param {boolean} [visibility] Skip this to toggle visibility
*/
Morebits.quickForm.setElementTooltipVisibility = function QuickFormSetElementTooltipVisibility(element, visibility) {
$(Morebits.quickForm.getElementContainer(element)).find(".morebits-tooltip").toggle(visibility);
};



/**
* **************** HTMLFormElement ****************
*/

/**
* Returns an array containing the values of elements with the given name, that has it's
* checked property set to true. (i.e. a checkbox or a radiobutton is checked), or select
* options that have selected set to true. (don't try to mix selects with radio/checkboxes,
* please)
* Type is optional and can specify if either radio or checkbox (for the event
* that both checkboxes and radiobuttons have the same name.
*
* XXX: Doesn't seem to work reliably across all browsers at the moment. -- see getChecked2
* in twinkleunlink.js, which is better
*/
HTMLFormElement.prototype.getChecked = function( name, type ) {
var elements = this.elements[name];
if( !elements ) {
// if the element doesn't exists, return null.
return null;
}
var return_array = [];
var i;
if( elements instanceof HTMLSelectElement ) {
var options = elements.options;
for( i = 0; i < options.length; ++i ) {
if( options[i].selected ) {
if( options[i].values ) {
return_array.push( options[i].values );
} else {
return_array.push( options[i].value );
}

}
}
} else if( elements instanceof HTMLInputElement ) {
if( type && elements.type !== type ) {
return [];
} else if( elements.checked ) {
return [ elements.value ];
}
} else {
for( i = 0; i < elements.length; ++i ) {
if( elements[i].checked ) {
if( type && elements[i].type !== type ) {
continue;
}
if( elements[i].values ) {
return_array.push( elements[i].values );
} else {
return_array.push( elements[i].value );
}
}
}
}
return return_array;
};



/**
* **************** RegExp ****************
*
* Escapes a string to be used in a RegExp
* @param {string} text - string to be escaped
* @param {boolean} [space_fix] - Set this true to replace spaces and underscore with `[ _]` as they are often equivalent
*/

RegExp.escape = function( text, space_fix ) {
text = mw.RegExp.escape(text);

// Special MediaWiki escape - underscore/space are often equivalent
if( space_fix ) {
text = text.replace( / |_/g, '[_ ]' );
}

return text;
};



/**
* **************** Morebits.bytes ****************
* Utility object for formatting byte values
*/

Morebits.bytes = function( value ) {
if( typeof value === 'string' ) {
var res = /(\d+) ?(\w?)(i?)B?/.exec( value );
var number = res[1];
var mag = res[2];
var si = res[3];

if( !number ) {
this.number = 0;
return;
}

if( !si ) {
this.value = number * Math.pow( 10, Morebits.bytes.magnitudes[mag] * 3 );
} else {
this.value = number * Math.pow( 2, Morebits.bytes.magnitudes[mag] * 10 );
}
} else {
this.value = value;
}
};

Morebits.bytes.magnitudes = {
'': 0,
'K': 1,
'M': 2,
'G': 3,
'T': 4,
'P': 5,
'E': 6,
'Z': 7,
'Y': 8
};

Morebits.bytes.rmagnitudes = {
0: '',
1: 'K',
2: 'M',
3: 'G',
4: 'T',
5: 'P',
6: 'E',
7: 'Z',
8: 'Y'
};

Morebits.bytes.prototype.valueOf = function() {
return this.value;
};

Morebits.bytes.prototype.toString = function( magnitude ) {
var tmp = this.value;
if( magnitude ) {
var si = /i/.test(magnitude);
var mag = magnitude.replace( /.*?(\w)i?B?.*/g, '$1' );
if( si ) {
tmp /= Math.pow( 2, Morebits.bytes.magnitudes[mag] * 10 );
} else {
tmp /= Math.pow( 10, Morebits.bytes.magnitudes[mag] * 3 );
}
if( parseInt( tmp, 10 ) !== tmp ) {
tmp = Number( tmp ).toPrecision( 4 );
}
return tmp + ' ' + mag + (si?'i':'') + 'B';
} else {
// si per default
var current = 0;
while( tmp >= 1024 ) {
tmp /= 1024;
++current;
}
tmp = this.value / Math.pow( 2, current * 10 );
if( parseInt( tmp, 10 ) !== tmp ) {
tmp = Number( tmp ).toPrecision( 4 );
}
return tmp + ' ' + Morebits.bytes.rmagnitudes[current] + ( current > 0 ? 'iB' : 'B' );
}
};



/**
* **************** String; Morebits.string ****************
*/

if (!String.prototype.trimLeft) {
String.prototype.trimLeft = function stringPrototypeLtrim( ) {
return this.replace( /^[\s]+/g, "" );
};
}

if (!String.prototype.trimRight) {
String.prototype.trimRight = function stringPrototypeRtrim( ) {
return this.replace( /[\s]+$/g, "" );
};
}

if (!String.prototype.trim) {
String.prototype.trim = function stringPrototypeTrim( ) {
return this.trimRight().trimLeft();
};
}

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().trimRight();
var unbinder = new Morebits.unbinder(result);
unbinder.unbind("<no" + "wiki>", "</no" + "wiki>");
unbinder.content = unbinder.content.replace(/\|/g, "{{subst:!}}");
return unbinder.rebind();
},

/**
* Replacement for `String.prototype.replace()` when the second parameter
* (the replacement string) is arbitrary, such as a username or freeform user input,
* and may contain dollar signs
*/
safeReplace: function morebitsStringSafeReplace(string, pattern, replacement) {
return string.replace(pattern, replacement.replace(/\$/g, "$$$$"));
}
};


/**
* **************** Morebits.array ****************
*/

Morebits.array = {
/**
* @returns {Array} a copy of the array with duplicates removed
*/
uniq: function(arr) {
if ( ! Array.isArray( arr ) ) {
throw "A non-array object passed to Morebits.array.uniq";
}
var result = [];
for( var i = 0; i < arr.length; ++i ) {
var current = arr[i];
if( result.indexOf( current ) === -1 ) {
result.push( current );
}
}
return result;
},

/**
* @returns {Array} a copy of the array with the first instance of each value
* removed; subsequent instances of those values (duplicates) remain
*/
dups: function(arr) {
if ( ! Array.isArray( arr ) ) {
throw "A non-array object passed to Morebits.array.dups";
}
var uniques = [];
var result = [];
for( var i = 0; i < arr.length; ++i ) {
var current = arr[i];
if( uniques.indexOf( current ) === -1 ) {
uniques.push( current );
} else {
result.push( current );
}
}
return result;
},


/**
* breaks up `arr` into smaller arrays of length `size`, and
* @returns an array of these "chunked" arrays
* @param {array} arr
* @param {number} size
* @returns {Array}
*/
chunk: function( arr, size ) {
if ( ! Array.isArray( arr ) ) {
throw "A non-array object passed to Morebits.array.chunk";
}
if( typeof size !== 'number' || size <= 0 ) { // pretty impossible to do anything :)
return [ arr ]; // we return an array consisting of this array.
}
var result = [];
var current;
for( var i = 0; i < arr.length; ++i ) {
if( i % size === 0 ) { // when 'i' is 0, this is always true, so we start by creating one.
current = [];
result.push( current );
}
current.push( arr[i] );
}
return result;
}
};


/**
* **************** Morebits.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.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 + '(.*?)' + 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( this.history.hasOwnProperty( current ) ) {
content = content.replace( current, this.history[current] );
}
}
return content;
},
prefix: null, // %UNIQ::0.5955981644938324::
postfix: null, // ::UNIQ%
content: null, // string
counter: null, // 0++
history: null // {}
};

Morebits.unbinder.getCallback = function UnbinderGetCallback(self) {
return function UnbinderCallback( match ) {
var current = self.prefix + self.counter + self.postfix;
self.history[current] = match;
++self.counter;
return current;
};
};



/**
* **************** Date ****************
* Helper functions to get the month as a string instead of a number
*
* Normally it is poor form to play with prototypes of primitive types, but it
* is fairly unlikely that anyone will iterate over a Date object.
*/

Date.monthNames = ['January', 'February', 'March', 'April', 'May', 'June',
'July', 'August', 'September', 'October', 'November','December' ];

Date.monthNamesAbbrev = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];

Date.prototype.getMonthName = function() {
return Date.monthNames[ this.getMonth() ];
};

Date.prototype.getMonthNameAbbrev = function() {
return Date.monthNamesAbbrev[ this.getMonth() ];
};

Date.prototype.getUTCMonthName = function() {
return Date.monthNames[ this.getUTCMonth() ];
};

Date.prototype.getUTCMonthNameAbbrev = function() {
return Date.monthNamesAbbrev[ this.getUTCMonth() ];
};



/**
* **************** Morebits.wikipedia ****************
* English Wikipedia-specific objects
*/

Morebits.wikipedia = {};

Morebits.wikipedia.namespaces = {
'-2': 'Media',
'-1': 'Special',
'0': '',
'1': 'Talk',
'2': 'User',
'3': 'User talk',
'4': 'Project',
'5': 'Project talk',
'6': 'File',
'7': 'File talk',
'8': 'MediaWiki',
'9': 'MediaWiki talk',
'10': 'Template',
'11': 'Template talk',
'12': 'Help',
'13': 'Help talk',
'14': 'Category',
'15': 'Category talk',
'100': 'Portal',
'101': 'Portal talk',
'108': 'Book',
'109': 'Book talk',
'118': 'Draft',
'119': 'Draft talk',
'446': 'Education Program',
'447': 'Education Program talk',
'710': 'TimedText',
'711': 'TimedText talk',
'828': 'Module',
'829': 'Module talk'
};

Morebits.wikipedia.namespacesFriendly = {
'0': '(Article)',
'1': 'Talk',
'2': 'User',
'3': 'User talk',
'4': 'Wikipedia',
'5': 'Wikipedia talk',
'6': 'File',
'7': 'File talk',
'8': 'MediaWiki',
'9': 'MediaWiki talk',
'10': 'Template',
'11': 'Template talk',
'12': 'Help',
'13': 'Help talk',
'14': 'Category',
'15': 'Category talk',
'100': 'Portal',
'101': 'Portal talk',
'108': 'Book',
'109': 'Book talk',
'118': 'Draft',
'119': 'Draft talk',
'446': 'Education Program',
'447': 'Education Program talk',
'710': 'TimedText',
'711': 'TimedText talk',
'828': 'Module',
'829': 'Module talk'
};



/**
* **************** 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)
*/
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() {
new Morebits.status( Morebits.wiki.actionCompleted.notice, Morebits.wiki.actionCompleted.postfix, 'info' );
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 = 'Action';
Morebits.wiki.actionCompleted.postfix = 'completed';

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.
*/

/**
* @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 {Object} [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.format = 'xml';
this.query.assert = 'user';
this.onSuccess = onSuccess;
this.onError = onError;
if( statusElement ) {
this.statelem = statusElement;
this.statelem.status( currentAction );
} else {
this.statelem = new Morebits.status( currentAction );
}
};

Morebits.wiki.api.prototype = {
currentAction: '',
onSuccess: null,
onError: null,
parent: window, // use global context if there is no parent object
query: null,
responseXML: null,
setParent: function(parent) { this.parent = parent; }, // keep track of parent object for callbacks
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

/**
* Carries out the request.
* @param {Object} callerAjaxParameters Do not specify a parameter unless you really
* really want to give jQuery some extra parameters
*/
post: function( callerAjaxParameters ) {

++Morebits.wiki.numberOfActionsLeft;

var ajaxparams = $.extend( {}, {
context: this,
type: 'POST',
url: mw.util.wikiScript('api'),
data: Morebits.queryString.create(this.query),
dataType: 'xml',
headers: {
'Api-User-Agent': morebitsWikiApiUserAgent
}
}, callerAjaxParameters );

return $.ajax( ajaxparams ).done(
function(xml, statusText) {
this.statusText = statusText;
this.responseXML = xml;
this.errorCode = $(xml).find('error').attr('code');
this.errorText = $(xml).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
this.returnError();
return;
}

// 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();
}
).fail(
// only network and server errors reach here – complaints from the API itself are caught in success()
function(jqXHR, statusText, errorThrown) {
this.statusText = statusText;
this.errorThrown = errorThrown; // frequently undefined
this.errorText = statusText + ' "' + jqXHR.statusText + '" occurred while contacting the API.';
this.returnError();
}
); // the return value should be ignored, unless using callerAjaxParameters with |async: false|
},

returnError: function() {
if ( this.errorCode === "badtoken" ) {
this.statelem.error( "Invalid token. Refresh the page and try again" );
} else {
this.statelem.error( this.errorText );
}

// invoke failure callback if one was supplied
if (this.onError) {

// set the callback context to this.parent for new code and supply the API object
// as the first argument to the callback for legacy code
this.onError.call( this.parent, this );
}
// don't complete the action so that the error remains displayed
},

getStatusElement: function() {
return this.statelem;
},

getErrorCode: function() {
return this.errorCode;
},

getErrorText: function() {
return this.errorText;
},

getXML: function() {
return this.responseXML;
}
};

// Custom user agent header, used by WMF for server-side logging
// See https://lists.wikimedia.org/pipermail/mediawiki-api-announce/2014-November/000075.html
var morebitsWikiApiUserAgent = 'morebits.js/2.0 ([[w:WT:TW]])';

/**
* Sets the custom user agent header
* @param {string} ua User agent
*/
Morebits.wiki.api.setApiUserAgent = function( ua ) {
morebitsWikiApiUserAgent = ( ua ? ua + ' ' : '' ) + 'morebits.js/2.0 ([[w:WT:TW]])';
};



/**
* **************** Morebits.wiki.page ****************
* Uses the MediaWiki API to load a page and optionally edit it, move it, etc.
*
* Callers are not permitted to directly access the properties of this class!
* All property access is through the appropriate get___() or set___() method.
*
* Callers should set Morebits.wiki.actionCompleted.notice and Morebits.wiki.actionCompleted.redirect
* before the first call to Morebits.wiki.page.load().
*
* Each of the callback functions takes one parameter, which is a
* reference to the Morebits.wiki.page object that registered the callback.
* Callback functions may invoke any Morebits.wiki.page prototype method using this reference.
*
*
* HIGHLIGHTS:
*
* Constructor: Morebits.wiki.page(pageName, currentAction)
* pageName - the name of the page, prefixed by the namespace (if any)
* (for the current page, use mw.config.get('wgPageName'))
* currentAction - a string describing the action about to be undertaken (optional)
*
* onSuccess and onFailure are callback functions called when the operation is a success or failure
* if enclosed in [brackets], it indicates that it is optional
*
* load(onSuccess, [onFailure]): Loads the text for the page
*
* getPageText(): returns a string containing the text of the page after a successful load()
*
* save([onSuccess], [onFailure]): Saves the text set via setPageText() for the page.
* Must be preceded by calling load().
* Warning: Calling save() can result in additional calls to the previous load() callbacks to
* recover from edit conflicts!
* In this case, callers must make the same edit to the new pageText and reinvoke save().
* This behavior can be disabled with setMaxConflictRetries(0).
*
* append([onSuccess], [onFailure]): Adds the text provided via setAppendText() to the end of
* the page. Does not require calling load() first.
*
* prepend([onSuccess], [onFailure]): Adds the text provided via setPrependText() to the start
* of the page. Does not require calling load() first.
*
* move(onSuccess, [onFailure]): Moves a page to another title
*
* deletePage(onSuccess, [onFailure]): Deletes a page (for admins only)
*
* protect(onSuccess, [onFailure]): Protects a page
*
* getPageName(): returns a string containing the name of the loaded page, including the namespace
*
* setPageText(pageText) sets the updated page text that will be saved when save() is called
*
* setAppendText(appendText) sets the text that will be appended to the page when append() is called
*
* setPrependText(prependText) sets the text that will be prepended to the page when prepend() is called
*
* setCallbackParameters(callbackParameters)
* callbackParameters - an object for use in a callback function
*
* getCallbackParameters(): returns the object previous set by setCallbackParameters()
*
* Callback notes: callbackParameters is for use by the caller only. The parameters
* allow a caller to pass the proper context into its callback function.
* Callers must ensure that any changes to the callbackParameters object
* within a load() callback still permit a proper re-entry into the
* load() callback if an edit conflict is detected upon calling save().
*
* getStatusElement(): returns the Status element created by the constructor
*
* exists(): returns true if the page existed on the wiki when it was last loaded
*
* getCurrentID(): returns a string containing the current revision ID of the page
*
* lookupCreator(onSuccess): Retrieves the username of the user who created the page
* onSuccess - callback function which is called when the username is found
* within the callback, the username can be retrieved using the getCreator() function
*
* getCreator(): returns the user who created the page following lookupCreator()
*
*/

/**
* Call sequence for common operations (optional final user callbacks not shown):
*
* Edit current contents of a page (no edit conflict):
* .load(userTextEditCallback) -> ctx.loadApi.post() -> ctx.loadApi.post.success() ->
* ctx.fnLoadSuccess() -> userTextEditCallback() -> .save() ->
* ctx.saveApi.post() -> ctx.loadApi.post.success() -> ctx.fnSaveSuccess()
*
* Edit current contents of a page (with edit conflict):
* .load(userTextEditCallback) -> ctx.loadApi.post() -> ctx.loadApi.post.success() ->
* ctx.fnLoadSuccess() -> userTextEditCallback() -> .save() ->
* ctx.saveApi.post() -> ctx.loadApi.post.success() -> ctx.fnSaveError() ->
* ctx.loadApi.post() -> ctx.loadApi.post.success() ->
* ctx.fnLoadSuccess() -> userTextEditCallback() -> .save() ->
* ctx.saveApi.post() -> ctx.loadApi.post.success() -> ctx.fnSaveSuccess()
*
* Append to a page (similar for prepend):
* .append() -> ctx.loadApi.post() -> ctx.loadApi.post.success() ->
* ctx.fnLoadSuccess() -> ctx.fnAutoSave() -> .save() ->
* ctx.saveApi.post() -> ctx.loadApi.post.success() -> ctx.fnSaveSuccess()
*
* Notes:
* 1. All functions following Morebits.wiki.api.post() are invoked asynchronously
* from the jQuery AJAX library.
* 2. The sequence for append/prepend could be slightly shortened, but it would require
* significant duplication of code for little benefit.
*/

/**
* @constructor
* @param {string} pageName The name of the page, prefixed by the namespace (if any)
* For the current page, use mw.config.get('wgPageName')
* @param {string} [currentAction] A string describing the action about to be undertaken (optional)
*/
Morebits.wiki.page = function(pageName, currentAction) {

if (!currentAction) {
currentAction = 'Opening page "' + pageName + '"';
}

/**
* Private context variables
*
* This context is not visible to the outside, thus all the data here
* must be accessed via getter and setter functions.
*/
var ctx = {
// backing fields for public properties
pageName: pageName,
pageExists: false,
editSummary: null,
callbackParameters: null,
statusElement: new Morebits.status(currentAction),

// - edit
pageText: null,
editMode: 'all', // save() replaces entire contents of the page by default
appendText: null, // can't reuse pageText for this because pageText is needed to follow a redirect
prependText: null, // can't reuse pageText for this because pageText is needed to follow a redirect
createOption: null,
minorEdit: false,
botEdit: false,
pageSection: null,
maxConflictRetries: 2,
maxRetries: 2,
followRedirect: false,
watchlistOption: 'nochange',
creator: null,

// - revert
revertOldID: null,

// - move
moveDestination: null,
moveTalkPage: false,
moveSubpages: false,
moveSuppressRedirect: false,

// - protect
protectEdit: null,
protectMove: null,
protectCreate: null,
protectCascade: false,

// - stabilize (FlaggedRevs)
flaggedRevs: null,

// internal status
pageLoaded: false,
editToken: null,
loadTime: null,
lastEditTime: null,
revertCurID: null,
revertUser: null,
fullyProtected: false,
suppressProtectWarning: false,
conflictRetries: 0,
retries: 0,

// callbacks
onLoadSuccess: null,
onLoadFailure: null,
onSaveSuccess: null,
onSaveFailure: null,
onLookupCreatorSuccess: null,
onMoveSuccess: null,
onMoveFailure: null,
onDeleteSuccess: null,
onDeleteFailure: null,
onProtectSuccess: null,
onProtectFailure: null,
onStabilizeSuccess: null,
onStabilizeFailure: null,

// internal objects
loadQuery: null,
loadApi: null,
saveApi: null,
lookupCreatorApi: null,
moveApi: null,
moveProcessApi: null,
deleteApi: null,
deleteProcessApi: 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',
intoken: 'edit', // fetch an edit token
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.userIsInGroup('sysop')) {
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 edit token from mw.user.tokens?
var canUseMwUserToken = fnCanUseMwUserToken('edit');

if (!ctx.pageLoaded && !canUseMwUserToken) {
ctx.statusElement.error("Internal error: attempt to save a page that has not been loaded!");
ctx.onSaveFailure(this);
return;
}
if (!ctx.editSummary) {
ctx.statusElement.error("Internal error: edit summary not set before save!");
ctx.onSaveFailure(this);
return;
}

// shouldn't happen if canUseMwUserToken === true
if (ctx.fullyProtected && !ctx.suppressProtectWarning &&
!confirm('You are about to make an edit to the fully protected page "' + ctx.pageName +
(ctx.fullyProtected === 'infinity' ? '" (protected indefinitely)' : ('" (protection expiring ' + ctx.fullyProtected + ')')) +
'. \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('editToken') : ctx.editToken,
watchlist: ctx.watchlistOption
};

if (typeof ctx.pageSection === 'number') {
query.section = ctx.pageSection;
}

// Set minor edit attribute. If these parameters are present with any value, it is interpreted as true
if (ctx.minorEdit) {
query.minor = true;
} else {
query.notminor = true; // force Twinkle config to override user preference setting for "all edits are minor"
}

// Set bot edit attribute. If this paramter is present with any value, it is interpreted as true
if (ctx.botEdit) {
query.bot = true;
}

switch (ctx.editMode) {
case 'append':
query.appendtext = ctx.appendText; // use mode to append to current page contents
break;
case 'prepend':
query.prependtext = ctx.prependText; // use mode to prepend to current page contents
break;
case 'revert':
query.undo = ctx.revertCurID;
query.undoafter = ctx.revertOldID;
if (ctx.lastEditTime) {
query.basetimestamp = ctx.lastEditTime; // check that page hasn't been edited since it was loaded
}
query.starttimestamp = ctx.loadTime; // check that page hasn't been deleted since it was loaded (don't recreate bad stuff)
break;
default:
query.text = ctx.pageText; // replace entire contents of the page
if (ctx.lastEditTime) {
query.basetimestamp = ctx.lastEditTime; // check that page hasn't been edited since it was loaded
}
query.starttimestamp = ctx.loadTime; // check that page hasn't been deleted since it was loaded (don't recreate bad stuff)
break;
}

if (['recreate', 'createonly', 'nocreate'].indexOf(ctx.createOption) !== -1) {
query[ctx.createOption] = '';
}

if (canUseMwUserToken && ctx.followRedirect) {
query.redirect = true;
}

ctx.saveApi = new Morebits.wiki.api( "Saving page...", query, fnSaveSuccess, ctx.statusElement, fnSaveError);
ctx.saveApi.setParent(this);
ctx.saveApi.post();
};

/**
* Adds the text provided via setAppendText() to the end of the page.
* Does not require calling load() first.
* @param {Function} onSuccess - callback function which is called when the method has succeeded (optional)
* @param {Function} onFailure - callback function which is called when the method fails (optional)
*/
this.append = function(onSuccess, onFailure) {
ctx.editMode = 'append';

if (fnCanUseMwUserToken('edit')) {
this.save(onSuccess, onFailure);
} else {
ctx.onSaveSuccess = onSuccess;
ctx.onSaveFailure = onFailure || emptyFunction;
this.load(fnAutoSave, ctx.onSaveFailure);
}
};

/**
* Adds the text provided via setPrependText() to the start of the page.
* Does not require calling load() first.
* @param {Function} onSuccess - callback function which is called when the method has succeeded (optional)
* @param {Function} onFailure - callback function which is called when the method fails (optional)
*/
this.prepend = function(onSuccess, onFailure) {
ctx.editMode = 'prepend';

if (fnCanUseMwUserToken('edit')) {
this.save(onSuccess, onFailure);
} else {
ctx.onSaveSuccess = onSuccess;
ctx.onSaveFailure = onFailure || emptyFunction;
this.load(fnAutoSave, ctx.onSaveFailure);
}
};

/**
* @returns {string} string containing the name of the loaded page, including the namespace
*/
this.getPageName = function() {
return ctx.pageName;
};

/**
* @returns {string} string containing the text of the page after a successful load()
*/
this.getPageText = function() {
return ctx.pageText;
};

/**
* `pageText` - string containing the updated page text that will be saved when save() is called
*/
this.setPageText = function(pageText) {
ctx.editMode = 'all';
ctx.pageText = pageText;
};

/**
* `appendText` - string containing the text that will be appended to the page when append() is called
*/
this.setAppendText = function(appendText) {
ctx.editMode = 'append';
ctx.appendText = appendText;
};

/**
* `prependText` - string containing the text that will be prepended to the page when prepend() is called
*/
this.setPrependText = function(prependText) {
ctx.editMode = 'prepend';
ctx.prependText = prependText;
};



// Edit-related setter methods:
/**
* `summary` - string containing the text of the edit summary that will be used when save() is called
*/
this.setEditSummary = function(summary) {
ctx.editSummary = summary;
};

/**
* `createOption` is a string value:
* '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 retrieving the edit token and saving the edit (default)
*
*/
this.setCreateOption = function(createOption) {
ctx.createOption = createOption;
};

/**
* `minorEdit` - boolean value:
* True - When save is called, the resulting edit will be marked as "minor".
* False - When save is called, the resulting edit will not be marked as "minor". (default)
*/
this.setMinorEdit = function(minorEdit) {
ctx.minorEdit = minorEdit;
};

/**
* `botEdit` is a boolean value:
* True - When save is called, the resulting edit will be marked as "bot".
* False - When save is called, the resulting edit will not be marked as "bot". (default)
*/
this.setBotEdit = function(botEdit) {
ctx.botEdit = botEdit;
};

/**
* `pageSection` - integer specifying the section number to load or save.
* The default is `null`, which means that the entire page will be retrieved.
*/
this.setPageSection = function(pageSection) {
ctx.pageSection = pageSection;
};

/**
* `maxRetries` - number of retries for save errors involving an edit conflict or loss of edit token.Default: 2
*/
this.setMaxConflictRetries = function(maxRetries) {
ctx.maxConflictRetries = maxRetries;
};

/**
* `maxRetries` - number of retries for save errors not involving an edit conflict or loss of edit token
* Default: 2
*/
this.setMaxRetries = function(maxRetries) {
ctx.maxRetries = maxRetries;
};

/**
* `watchlistOption` is a boolean value:
* 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';
}
};

/**
* `watchlistOption` is a boolean value:
* 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';
}
};

/**
* `followRedirect` is a boolean value:
* True - a maximum of one redirect will be followed.
* In the event of a redirect, a message is displayed to the user and
* the redirect target can be retrieved with getPageName().
* False - the requested pageName will be used without regard to any redirect. (default)
*/
this.setFollowRedirect = function(followRedirect) {
if (ctx.pageLoaded) {
ctx.statusElement.error("Internal error: cannot change redirect setting after the page has been loaded!");
return;
}
ctx.followRedirect = followRedirect;
};

// Move-related setter functions
this.setMoveDestination = function(destination) {
ctx.moveDestination = destination;
};

this.setMoveTalkPage = function(flag) {
ctx.moveTalkPage = !!flag;
};

this.setMoveSubpages = function(flag) {
ctx.moveSubpages = !!flag;
};

this.setMoveSuppressRedirect = function(flag) {
ctx.moveSuppressRedirect = !!flag;
};

// Protect-related setter functions
this.setEditProtection = function(level, expiry) {
ctx.protectEdit = { level: level, expiry: expiry };
};

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

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

this.setCascadingProtection = function(flag) {
ctx.protectCascade = !!flag;
};

this.suppressProtectWarning = function() {
ctx.suppressProtectWarning = true;
};

// Revert-related getters/setters:
this.setOldID = function(oldID) {
ctx.revertOldID = oldID;
};

/**
* @returns {string} string containing the current revision ID of the page
*/
this.getCurrentID = function() {
return ctx.revertCurID;
};

this.getRevisionUser = function() {
return ctx.revertUser;
};

// 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;
};


this.setFlaggedRevs = function(level, expiry) {
ctx.flaggedRevs = { level: level, expiry: expiry };
};

/**
* @returns {boolean} true if the page existed on the wiki when it was last loaded
*/
this.exists = function() {
return ctx.pageExists;
};

/**
* @returns {string} the user who created the page following lookupCreator()
*/
this.getCreator = function() {
return ctx.creator;
};

/**
* Retrieves the username of the user who created the page
* @param {Function} onSuccess - callback function (required) which is
* called when the username is found within the callback, the username
* can be retrieved using the getCreator() function
*/
this.lookupCreator = function(onSuccess) {
if (!onSuccess) {
ctx.statusElement.error("Internal error: no onSuccess callback provided to lookupCreator()!");
return;
}
ctx.onLookupCreatorSuccess = onSuccess;

var query = {
'action': 'query',
'prop': 'revisions',
'titles': ctx.pageName,
'rvlimit': 1,
'rvprop': 'user',
'rvdir': 'newer'
};

if (ctx.followRedirect) {
query.redirects = ''; // follow all redirects
}

ctx.lookupCreatorApi = new Morebits.wiki.api("Retrieving page creator information", query, fnLookupCreatorSuccess, ctx.statusElement);
ctx.lookupCreatorApi.setParent(this);
ctx.lookupCreatorApi.post();
};

/**
* marks the page as patrolled, if possible
*/
this.patrol = function() {
// There's no patrol link on page, so we can't patrol
if ( !$( '.patrollink' ).length ) {
return;
}

// Extract the rcid token from the "Mark page as patrolled" link on page
var patrolhref = $( '.patrollink a' ).attr( 'href' ),
rcid = mw.util.getParamValue( 'rcid', patrolhref );

if ( rcid ) {

var patrolstat = new Morebits.status( 'Marking page as patrolled' );

var wikipedia_api = new Morebits.wiki.api( 'doing...', {
action: 'patrol',
rcid: rcid,
token: mw.user.tokens.get( 'patrolToken' )
}, null, patrolstat );

// We don't really care about the response
wikipedia_api.post();
}
};

/**
* Reverts a page to revertOldID
* @param {Function} onSuccess - callback function to run on success
* @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
* @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;
}

var query = {
action: 'query',
prop: 'info',
intoken: 'move',
titles: ctx.pageName
};
if (ctx.followRedirect) {
query.redirects = ''; // follow all redirects
}
if (Morebits.userIsInGroup('sysop')) {
query.inprop = 'protection';
}

ctx.moveApi = new Morebits.wiki.api("retrieving move token...", query, fnProcessMove, ctx.statusElement, ctx.onMoveFailure);
ctx.moveApi.setParent(this);
ctx.moveApi.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
* @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.userIsInGroup('sysop')) {
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 = {
action: 'query',
prop: 'info',
inprop: 'protection',
intoken: 'delete',
titles: ctx.pageName
};
if (ctx.followRedirect) {
query.redirects = ''; // follow all redirects
}

ctx.deleteApi = new Morebits.wiki.api("retrieving delete token...", query, fnProcessDelete, ctx.statusElement, ctx.onDeleteFailure);
ctx.deleteApi.setParent(this);
ctx.deleteApi.post();
}
};

/**
* Protects a page (for admins only)
* @param {Function} onSuccess - callback function to run on success
* @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.userIsInGroup('sysop')) {
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 need to request protection levels from the server
var query = {
action: 'query',
prop: 'info',
inprop: 'protection',
intoken: 'protect',
titles: ctx.pageName,
watchlist: ctx.watchlistOption
};
if (ctx.followRedirect) {
query.redirects = ''; // follow all redirects
}

ctx.protectApi = new Morebits.wiki.api("retrieving protect 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)
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.userIsInGroup('sysop')) {
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;
}

var query = {
action: 'query',
prop: 'info|flagged',
intoken: 'edit',
titles: ctx.pageName
};
if (ctx.followRedirect) {
query.redirects = ''; // follow all redirects
}

ctx.stabilizeApi = new Morebits.wiki.api("retrieving stabilize 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 edit token sent with the page
* HTML, or whether we need to ask the server for more info (e.g. protection expiry).
*
* Currently only used for append, prepend, and deletePage.
*
* @param {string} action The action being undertaken, e.g. "edit", "delete".
* @returns {boolean}
*/
var fnCanUseMwUserToken = function(action) {
// API-based redirect resolution only works for action=query and
// action=edit in append/prepend modes (and section=new, but we don't
// really support that)
if (ctx.followRedirect && (action !== 'edit' ||
(ctx.editMode !== 'append' && ctx.editMode !== 'prepend'))) {
return false;
}

// do we need to fetch the edit protection expiry?
if (Morebits.userIsInGroup('sysop') && !ctx.suppressProtectWarning) {
// poor man's normalisation
if (Morebits.string.toUpperCaseFirstChar(mw.config.get('wgPageName')).replace(/ /g, '_').trim() !==
Morebits.string.toUpperCaseFirstChar(ctx.pageName).replace(/ /g, '_').trim()) {
return false;
}

var editRestriction = mw.config.get('wgRestrictionEdit');
if (!editRestriction || editRestriction.indexOf('sysop') !== -1) {
return false;
}
}

return !!mw.user.tokens.get('editToken');
};

// callback from loadSuccess() for append() and prepend() threads
var fnAutoSave = function(pageobj) {
pageobj.save(ctx.onSaveSuccess, ctx.onSaveFailure);
};

// callback from loadApi.post()
var fnLoadSuccess = function() {
var xml = ctx.loadApi.getXML();

if ( !fnCheckPageName(xml, ctx.onLoadFailure) ) {
return; // abort
}

ctx.pageExists = ($(xml).find('page').attr('missing') !== "");
if (ctx.pageExists) {
ctx.pageText = $(xml).find('rev').text();
} else {
ctx.pageText = ''; // allow for concatenation, etc.
}

// extract protection info, to alert admins when they are about to edit a protected page
if (Morebits.userIsInGroup('sysop')) {
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.editToken = $(xml).find('page').attr('edittoken');
if (!ctx.editToken) {
ctx.statusElement.error("Failed to retrieve edit token.");
ctx.onLoadFailure(this);
return;
}
ctx.loadTime = $(xml).find('page').attr('starttimestamp');
if (!ctx.loadTime) {
ctx.statusElement.error("Failed to retrieve start timestamp.");
ctx.onLoadFailure(this);
return;
}
ctx.lastEditTime = $(xml).find('rev').attr('timestamp');
ctx.revertCurID = $(xml).find('page').attr('lastrevid');

if (ctx.editMode === 'revert') {
ctx.revertCurID = $(xml).find('rev').attr('revid');
if (!ctx.revertCurID) {
ctx.statusElement.error("Failed to retrieve current revision ID.");
ctx.onLoadFailure(this);
return;
}
ctx.revertUser = $(xml).find('rev').attr('user');
if (!ctx.revertUser) {
if ($(xml).find('rev').attr('userhidden') === "") { // username was RevDel'd or oversighted
ctx.revertUser = "<username hidden>";
} else {
ctx.statusElement.error("Failed to retrieve user who made the revision.");
ctx.onLoadFailure(this);
return;
}
}
// set revert edit summary
ctx.editSummary = "[[Help:Revert|Reverted]] to revision " + ctx.revertOldID + " by " + ctx.revertUser + ": " + ctx.editSummary;
}

ctx.pageLoaded = true;

// alert("Generate edit conflict now"); // for testing edit conflict recovery logic
ctx.onLoadSuccess(this); // invoke callback
};

// helper function to parse the page name returned from the API
var fnCheckPageName = function(xml, onFailure) {
if (!onFailure) {
onFailure = emptyFunction;
}

// check for invalid titles
if ( $(xml).find('page').attr('invalid') === "" ) {
ctx.statusElement.error("The page title is invalid: " + ctx.pageName);
onFailure(this);
return false; // abort
}

// retrieve actual title of the page after normalization and redirects
if ( $(xml).find('page').attr('title') ) {
var resolvedName = $(xml).find('page').attr('title');

// only notify user for redirects, not normalization
if ( $(xml).find('redirects').length > 0 ) {
Morebits.status.info("Info", "Redirected from " + ctx.pageName + " to " + resolvedName );
}
ctx.pageName = resolvedName; // always update in case of normalization
}
else {
// could be a circular redirect or other problem
ctx.statusElement.error("Could not resolve redirects for: " + ctx.pageName);
onFailure(this);

// force error to stay on the screen
++Morebits.wiki.numberOfActionsLeft;
return false; // abort
}
return true; // all OK
};

// callback from saveApi.post()
var fnSaveSuccess = function() {
ctx.editMode = 'all'; // cancel append/prepend/revert modes
var xml = ctx.saveApi.getXML();

// see if the API thinks we were successful
if ($(xml).find('edit').attr('result') === "Success") {

// real success
// default on success action - display link for edited page
var link = document.createElement('a');
link.setAttribute('href', mw.util.getUrl(ctx.pageName) );
link.appendChild(document.createTextNode(ctx.pageName));
ctx.statusElement.info(['completed (', link, ')']);
if (ctx.onSaveSuccess) {
ctx.onSaveSuccess(this); // invoke callback
}
return;
}

// errors here are only generated by extensions which hook APIEditBeforeSave within MediaWiki
// Wikimedia wikis should only return spam blacklist errors, captchas, and AbuseFilter messages
var $editNode = $(xml).find('edit');
var blacklist = $editNode.attr('spamblacklist');

if (blacklist) {
var code = document.createElement('code');
code.style.fontFamily = "monospace";
code.appendChild(document.createTextNode(blacklist));
ctx.statusElement.error(['Could not save the page because the URL ', code, ' is on the spam blacklist.']);
} else 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 if ( $editNode.attr('code') === 'abusefilter-disallowed' ) {
ctx.statusElement.error('The edit was disallowed by the edit filter rule "' + $editNode.attr('info').substring(17) + '".');
} else if ( $editNode.attr('info').indexOf('Hit AbuseFilter:') === 0 ) {
var div = document.createElement('div');
div.className = "toccolours";
div.style.fontWeight = "normal";
div.style.color = "black";
div.innerHTML = $editNode.attr('warning');
ctx.statusElement.error([ 'The following warning was returned by the edit filter: ', div, 'If you wish to proceed with the edit, please carry it out again. This warning wil not appear a second time.' ]);
// XXX provide the user with a way to automatically retry the action if they so choose -
// I can't see how to do this without creating a UI dependency on Morebits.wiki.page though -- TTO
} else {
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, null, ctx.statusElement);
purgeApi.post( { async: false } ); // just wait for it, result is for debugging

--Morebits.wiki.numberOfActionsLeft; // allow for normal completion if retry succeeds

ctx.statusElement.info("Edit conflict detected, reapplying edit");
if (fnCanUseMwUserToken('edit')) {
ctx.saveApi.post(); // necessarily append or prepend, so this should work as desired
} else {
ctx.loadApi.post(); // reload the page and reapply the edit
}

// check for loss of edit token
// it's impractical to request a new token here, so invoke edit conflict logic when this happens
} else if ( errorCode === "notoken" && ctx.conflictRetries++ < ctx.maxConflictRetries ) {

ctx.statusElement.info("Edit token is invalid, retrying");
--Morebits.wiki.numberOfActionsLeft; // allow for normal completion if retry succeeds
if (fnCanUseMwUserToken('edit')) {
this.load(fnAutoSave, ctx.onSaveFailure); // try the append or prepend again
} else {
ctx.loadApi.post(); // reload the page and reapply the edit
}

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

// the error might be transient, so try again
ctx.statusElement.info("Save failed, retrying");
--Morebits.wiki.numberOfActionsLeft; // allow for normal completion if retry succeeds
ctx.saveApi.post(); // give it another go!

// hard error, give up
} else {

// non-admin attempting to edit a protected page - this gives a friendlier message than the default
if ( errorCode === "protectedpage" ) {
ctx.statusElement.error( "Failed to save edit: Page is fully protected" );
} else {
ctx.statusElement.error( "Failed to save edit: " + ctx.saveApi.getErrorText() );
}
ctx.editMode = 'all'; // cancel append/prepend/revert modes
if (ctx.onSaveFailure) {
ctx.onSaveFailure(this); // invoke callback
}
}
};

var fnLookupCreatorSuccess = function() {
var xml = ctx.lookupCreatorApi.getXML();

if ( !fnCheckPageName(xml) ) {
return; // abort
}

ctx.creator = $(xml).find('rev').attr('user');
if (!ctx.creator) {
ctx.statusElement.error("Could not find name of page creator");
return;
}
ctx.onLookupCreatorSuccess(this);
};

var fnProcessMove = function() {
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.userIsInGroup('sysop')) {
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 ' + editprot.attr('expiry') + ')')) +
'. \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;
}
}

var moveToken = $(xml).find('page').attr('movetoken');
if (!moveToken) {
ctx.statusElement.error("Failed to retrieve move token.");
ctx.onMoveFailure(this);
return;
}

var query = {
'action': 'move',
'from': $(xml).find('page').attr('title'),
'to': ctx.moveDestination,
'token': moveToken,
'reason': ctx.editSummary
};
if (ctx.moveTalkPage) {
query.movetalk = 'true';
}
if (ctx.moveSubpages) {
query.movesubpages = 'true'; // XXX don't know whether this works for non-admins
}
if (ctx.moveSuppressRedirect) {
query.noredirect = 'true';
}
if (ctx.watchlistOption === 'watch') {
query.watch = 'true';
}

ctx.moveProcessApi = new Morebits.wiki.api("moving page...", query, ctx.onMoveSuccess, ctx.statusElement, ctx.onMoveFailure);
ctx.moveProcessApi.setParent(this);
ctx.moveProcessApi.post();
};

var fnProcessDelete = function() {
var pageTitle, token;

if (fnCanUseMwUserToken('delete')) {
token = mw.user.tokens.get('editToken');
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 ' + editprot.attr('expiry') + ')')) +
'. \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('page').attr('deletetoken');
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
};
if (ctx.watchlistOption === 'watch') {
query.watch = 'true';
}

ctx.deleteProcessApi = new Morebits.wiki.api("deleting page...", query, ctx.onDeleteSuccess, ctx.statusElement, fnProcessDeleteError);
ctx.deleteProcessApi.setParent(this);
ctx.deleteProcessApi.post();
};

// callback from deleteProcessApi.post()
var fnProcessDeleteError = function() {

var errorCode = ctx.deleteProcessApi.getErrorCode();

// check for "Database query error"
if ( errorCode === "internal_api_error_DBQueryError" && ctx.retries++ < ctx.maxRetries ) {

ctx.statusElement.info("Database query error, retrying");
--Morebits.wiki.numberOfActionsLeft; // allow for normal completion if retry succeeds
ctx.deleteProcessApi.post(); // give it another go!

} else if ( errorCode === "badtoken" ) {
// this is pathetic, but given the current state of Morebits.wiki.page it would
// be a dog's breakfast to try and fix this
ctx.statusElement.error("Invalid token. Please refresh the page and try again.");
if (ctx.onDeleteFailure) {
ctx.onDeleteFailure.call(this, this, ctx.deleteProcessApi);
}

} 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 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 protectToken = $(xml).find('page').attr('protecttoken');
if (!protectToken) {
ctx.statusElement.error("Failed to retrieve protect token.");
ctx.onProtectFailure(this);
return;
}

// 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: $(xml).find('page').attr('title'),
token: protectToken,
protections: protections.join('|'),
expiry: expirys.join('|'),
reason: ctx.editSummary
};
if (ctx.protectCascade) {
query.cascade = 'true';
}
if (ctx.watchlistOption === 'watch') {
query.watch = '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 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;
}

var stabilizeToken = $(xml).find('page').attr('edittoken');
if (!stabilizeToken) {
ctx.statusElement.error("Failed to retrieve stabilize token.");
ctx.onStabilizeFailure(this);
return;
}

var query = {
action: 'stabilize',
title: $(xml).find('page').attr('title'),
token: stabilizeToken,
protectlevel: ctx.flaggedRevs.level,
expiry: ctx.flaggedRevs.expiry,
reason: ctx.editSummary
};
if (ctx.watchlistOption === 'watch') {
query.watch = 'true';
}

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

/* Morebits.wiki.page TODO: (XXX)
* - Should we retry loads also?
* - Need to reset current action before the save?
* - Deal with action.completed stuff
* - Need to reset all parameters once done (e.g. edit summary, move destination, etc.)
*/



/**
* **************** Morebits.wiki.preview ****************
* Uses the API to parse a fragment of wikitext and render it as HTML.
*
* The suggested implementation pattern (in Morebits.simpleWindow + Morebits.quickForm situations) is to
* construct a Morebits.wiki.preview object after rendering a Morebits.quickForm, and bind the object
* to an arbitrary property of the form (e.g. |previewer|). For an example, see
* twinklewarn.js.
*/

/**
* @constructor
* @param {HTMLDivElement} previewbox - the <div> element that will contain the rendered HTML
*/
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
*/
this.beginRender = function(wikitext, pageTitle) {
$(previewbox).show();

var statusspan = document.createElement('span');
previewbox.appendChild(statusspan);
Morebits.status.init(statusspan);

var query = {
action: 'parse',
prop: 'text',
pst: 'true', // PST = pre-save transform; this makes substitution work properly
text: wikitext,
title: pageTitle || mw.config.get('wgPageName')
};
var renderApi = new Morebits.wiki.api("loading...", query, fnRenderSuccess, new Morebits.status("Preview"));
renderApi.post();
};

var fnRenderSuccess = function(apiobj) {
var xml = apiobj.getXML();
var html = $(xml).find('text').text();
if (!html) {
apiobj.statelem.error("failed to retrieve preview, or template was blanked");
return;
}
previewbox.innerHTML = html;
$(previewbox).find("a").attr("target", "_blank"); // this makes links open in new tab
};

/**
* Hides the preview box and clears it.
*/
this.closePreview = function() {
$(previewbox).empty().hide();
};
};



/**
* **************** Morebits.wikitext ****************
* Wikitext manipulation
*/

Morebits.wikitext = {};

Morebits.wikitext.template = {
parse: function( text, start ) {
var count = -1;
var level = -1;
var equals = -1;
var current = '';
var result = {
name: '',
parameters: {}
};
var key, value;

for( var i = start; i < text.length; ++i ) {
var test3 = text.substr( i, 3 );
if( test3 === '{{{' ) {
current += '{{{';
i += 2;
++level;
continue;
}
if( test3 === '}}}' ) {
current += '}}}';
i += 2;
--level;
continue;
}
var test2 = text.substr( i, 2 );
if( test2 === '{{' || test2 === '[[' ) {
current += test2;
++i;
++level;
continue;
}
if( test2 === ']]' ) {
current += ']]';
++i;
--level;
continue;
}
if( test2 === '}}' ) {
current += test2;
++i;
--level;

if( level <= 0 ) {
if( count === -1 ) {
result.name = current.substring(2).trim();
++count;
} else {
if( equals !== -1 ) {
key = current.substring( 0, equals ).trim();
value = current.substring( equals ).trim();
result.parameters[key] = value;
equals = -1;
} else {
result.parameters[count] = current;
++count;
}
}
break;
}
continue;
}

if( text.charAt(i) === '|' && level <= 0 ) {
if( count === -1 ) {
result.name = current.substring(2).trim();
++count;
} else {
if( equals !== -1 ) {
key = current.substring( 0, equals ).trim();
value = current.substring( equals + 1 ).trim();
result.parameters[key] = value;
equals = -1;
} else {
result.parameters[count] = current;
++count;
}
}
current = '';
} else if( equals === -1 && text.charAt(i) === '=' && level <= 0 ) {
equals = current.length;
current += text.charAt(i);
} else {
current += text.charAt(i);
}
}

return result;
}
};

/**
* @constructor
* @param {string} text
*/
Morebits.wikitext.page = function mediawikiPage( text ) {
this.text = text;
};

Morebits.wikitext.page.prototype = {
text: '',

/**
* Removes links to `link_target` from the page text.
* @param {string} link_target
*/
removeLink: function( link_target ) {
var first_char = link_target.substr( 0, 1 );
var link_re_string = "[" + first_char.toUpperCase() + first_char.toLowerCase() + ']' + RegExp.escape( link_target.substr( 1 ), true );

// Files and Categories become links with a leading colon.
// e.g. [[:File:Test.png]]
var special_ns_re = /^(?:[Ff]ile|[Ii]mage|[Cc]ategory):/;
var colon = special_ns_re.test( link_target ) ? ':' : '';

var link_simple_re = new RegExp( "\\[\\[" + colon + "(" + link_re_string + ")\\]\\]", 'g' );
var link_named_re = new RegExp( "\\[\\[" + colon + link_re_string + "\\|(.+?)\\]\\]", 'g' );
this.text = this.text.replace( link_simple_re, "$1" ).replace( link_named_re, "$1" );
},

/**
* Comments out images from page text. If used in a gallery, deletes the whole line.
* If used as a template argument (not necessarily with File: prefix), the template parameter is commented out.
* @param {string} image - Image name without File: prefix
* @param {string} reason - Reason to be included in comment, alongside the commented-out image
*/
commentOutImage: function( image, reason ) {
var unbinder = new Morebits.unbinder( this.text );
unbinder.unbind( '<!--', '-->' );

reason = reason ? (reason + ': ') : '';
var first_char = image.substr( 0, 1 );
var image_re_string = "[" + first_char.toUpperCase() + first_char.toLowerCase() + ']' + RegExp.escape( image.substr( 1 ), true );

// Check for normal image links, i.e. [[File:Foobar.png|...]]
// Will eat the whole link
var links_re = new RegExp( "\\[\\[(?:[Ii]mage|[Ff]ile):\\s*" + image_re_string );
var allLinks = Morebits.array.uniq(Morebits.string.splitWeightedByKeys( unbinder.content, '[[', ']]' ));
for( var i = 0; i < allLinks.length; ++i ) {
if( links_re.test( allLinks[i] ) ) {
var replacement = '<!-- ' + reason + allLinks[i] + ' -->';
unbinder.content = unbinder.content.replace( allLinks[i], replacement, 'g' );
}
}
// unbind the newly created comments
unbinder.unbind( '<!--', '-->' );

// Check for gallery images, i.e. instances that must start on a new line,
// eventually preceded with some space, and must include File: prefix
// Will eat the whole line.
var gallery_image_re = new RegExp( "(^\\s*(?:[Ii]mage|[Ff]ile):\\s*" + image_re_string + ".*?$)", 'mg' );
unbinder.content = unbinder.content.replace( gallery_image_re, "<!-- " + reason + "$1 -->" );

// unbind the newly created comments
unbinder.unbind( '<!--', '-->' );

// Check free image usages, for example as template arguments, might have the File: prefix excluded, but must be preceeded by an |
// Will only eat the image name and the preceeding bar and an eventual named parameter
var free_image_re = new RegExp( "(\\|\\s*(?:[\\w\\s]+\\=)?\\s*(?:(?:[Ii]mage|[Ff]ile):\\s*)?" + image_re_string + ")", 'mg' );
unbinder.content = unbinder.content.replace( free_image_re, "<!-- " + reason + "$1 -->" );
// Rebind the content now, we are done!
this.text = unbinder.rebind();
},

/**
* Converts first usage of [[File:`image`]] to [[File:`image`|`data`]]
* @param {string} image - Image name without File: prefix
* @param {string} data
*/
addToImageComment: function( image, data ) {
var first_char = image.substr( 0, 1 );
var first_char_regex = RegExp.escape( first_char, true );
if( first_char.toUpperCase() !== first_char.toLowerCase() ) {
first_char_regex = '[' + RegExp.escape( first_char.toUpperCase(), true ) + RegExp.escape( first_char.toLowerCase(), true ) + ']';
}
var image_re_string = "(?:[Ii]mage|[Ff]ile):\\s*" + first_char_regex + RegExp.escape( image.substr( 1 ), true );
var links_re = new RegExp( "\\[\\[" + image_re_string );
var allLinks = Morebits.array.uniq(Morebits.string.splitWeightedByKeys( this.text, '[[', ']]' ));
for( var i = 0; i < allLinks.length; ++i ) {
if( links_re.test( allLinks[i] ) ) {
var replacement = allLinks[i];
// just put it at the end?
replacement = replacement.replace( /\]\]$/, '|' + data + ']]' );
this.text = this.text.replace( allLinks[i], replacement, 'g' );
}
}
var gallery_re = new RegExp( "^(\\s*" + image_re_string + '.*?)\\|?(.*?)$', 'mg' );
var newtext = "$1|$2 " + data;
this.text = this.text.replace( gallery_re, newtext );
},

/**
* Removes transclusions of template from page text
* @param {string} template - Page name whose transclusions are to be removed,
* include namespace prefix only if not in template namespace
*/
removeTemplate: function( template ) {
var first_char = template.substr( 0, 1 );
var template_re_string = "(?:[Tt]emplate:)?\\s*[" + first_char.toUpperCase() + first_char.toLowerCase() + ']' + RegExp.escape( template.substr( 1 ), true );
var links_re = new RegExp( "\\{\\{" + template_re_string );
var allTemplates = Morebits.array.uniq(Morebits.string.splitWeightedByKeys( this.text, '{{', '}}', [ '{{{', '}}}' ] ));
for( var i = 0; i < allTemplates.length; ++i ) {
if( links_re.test( allTemplates[i] ) ) {
this.text = this.text.replace( allTemplates[i], '', 'g' );
}
}
},

getText: function() {
return this.text;
}
};



/**
* **************** Morebits.queryString ****************
* Maps the querystring to an JS object
*
* In static context, the value of location.search.substring(1), else the value given
* to the constructor is going to be used. The mapped hash is saved in the object.
*
* Example:
*
* var value = Morebits.queryString.get('key');
* var obj = new Morebits.queryString('foo=bar&baz=quux');
* value = obj.get('foo');
*/

/**
* @constructor
* @param {string} qString The query string
*/
Morebits.queryString = function QueryString(qString) {
this.string = qString;
this.params = {};

if( !qString.length ) {
return;
}

qString.replace(/\+/, ' ');
var args = qString.split('&');

for( var i = 0; i < args.length; ++i ) {
var pair = args[i].split( '=' );
var key = decodeURIComponent( pair[0] ), value = key;

if( pair.length === 2 ) {
value = decodeURIComponent( pair[1] );
}

this.params[key] = value;
}
};

Morebits.queryString.staticstr = null;

Morebits.queryString.staticInit = function() {
if( !Morebits.queryString.staticstr ) {
Morebits.queryString.staticstr = new Morebits.queryString(location.search.substring(1));
}
};

Morebits.queryString.get = function(key) {
Morebits.queryString.staticInit();
return Morebits.queryString.staticstr.get(key);
};

Morebits.queryString.exists = function(key) {
Morebits.queryString.staticInit();
return Morebits.queryString.staticstr.exists(key);
};

Morebits.queryString.equals = function(key, value) {
Morebits.queryString.staticInit();
return Morebits.queryString.staticstr.equals(key, value);
};

Morebits.queryString.toString = function() {
Morebits.queryString.staticInit();
return Morebits.queryString.staticstr.toString();
};

Morebits.queryString.create = function( arr ) {
var resarr = [];
var editToken; // KLUGE: this should always be the last item in the query string (bug TW-B-0013)
for( var i in arr ) {
if( arr[i] === undefined ) {
continue;
}
var res;
if( Array.isArray( arr[i] ) ){
var v = [];
for(var j = 0; j < arr[i].length; ++j ) {
v[j] = encodeURIComponent( arr[i][j] );
}
res = v.join('|');
} else {
res = encodeURIComponent( arr[i] );
}
if( i === 'token' ) {
editToken = res;
} else {
resarr.push( encodeURIComponent( i ) + '=' + res );
}
}
if( editToken !== undefined ) {
resarr.push( 'token=' + editToken );
}
return resarr.join('&');
};

/**
* @returns {string} the value associated to the given `key`
* @param {string} key
*/
Morebits.queryString.prototype.get = function(key) {
return this.params[key] || null;
};

/**
* @returns {boolean} true if the given `key` is set
* @param {string} key
*/
Morebits.queryString.prototype.exists = function(key) {
return !!this.params[key];
};

/**
* @returns {boolean} true if the value associated with given `key` equals given `value`
* @param {string} key
* @param {string} value
*/
Morebits.queryString.prototype.equals = function(key, value) {
return this.params[key] === value;
};

/**
* @returns {string}
*/
Morebits.queryString.prototype.toString = function() {
return this.string || null;
};

/**
* Creates a querystring and encodes strings via `encodeURIComponent` and joins arrays with `|`
* @param {Array} arr
* @returns {string}
*/
Morebits.queryString.prototype.create = Morebits.queryString.create;



/**
* **************** Morebits.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 );
}
};

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;

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,
link: function() {
if( ! this.linked && Morebits.status.root ) {
Morebits.status.root.appendChild( this.node );
this.linked = true;
}
},
unlink: function() {
if( this.linked ) {
Morebits.status.root.removeChild( this.node );
this.linked = false;
}
},
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: 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();
},
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
},
render: function() {
this.node.className = 'tw_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' );
};

/**
* Display the user's rationale, comments, etc. back to them after a failure,
* so they don't use it
*/
Morebits.status.printUserText = function( comments, message ) {
var p = document.createElement( 'p' );
p.textContent = 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
*/

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.checkboxClickHandler() ****************
* 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++) {
cbs[i].checked = endState;
}
}
}
lastCheckbox = thisCb;
return true;
}

$(jQuerySelector, jQueryContext).click(clickHandler);
};



/** **************** Morebits.batchOperation ****************
* Iterates over a group of pages 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): Runs the given callback 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.
*
* 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, and using Morebits.wiki.api in twinklebatchundelete.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,
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 {String[]} pageList Array 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 given callback for each page in the list.
* The callback must call workerSuccess when succeeding, or workerFailure when failing.
* @param {Function} worker
*/
this.run = function(worker) {
if (ctx.running) {
ctx.statusElement.error("Batch operation is already running");
return;
}
ctx.running = true;

ctx.worker = worker;
ctx.countStarted = 0;
ctx.countFinished = 0;
ctx.countFinishedSuccess = 0;
ctx.currentChunkIndex = -1;
ctx.pageChunks = [];

var total = ctx.pageList.length;
if (!total) {
ctx.statusElement.info("nothing to do");
ctx.running = false;
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();
};

this.workerSuccess = function(apiobj) {
// update or remove status line
if (apiobj && apiobj.getStatusElement) {
var statelem = apiobj.getStatusElement();
if (ctx.options.preserveIndividualStatusLines) {
if (apiobj.getPageName || apiobj.pageName || (apiobj.query && apiobj.query.title)) {
// we know the page title - display a relevant message
var pageName = apiobj.getPageName ? apiobj.getPageName() :
(apiobj.pageName || apiobj.query.title);
var link = document.createElement('a');
link.setAttribute('href', mw.util.getUrl(pageName));
link.appendChild(document.createTextNode(pageName));
statelem.info(['completed (', link, ')']);
} else {
// we don't know the page title - just display a generic message
statelem.info('done');
}
} else {
// remove the status line from display
statelem.unlink();
}
}

ctx.countFinishedSuccess++;
fnDoneOne(apiobj);
};

this.workerFailure = function(apiobj) {
fnDoneOne(apiobj);
};

// private functions

var thisProxy = this;

var fnStartNewChunk = function() {
var chunk = ctx.pageChunks[++ctx.currentChunkIndex];
if (!chunk) {
return; // done! yay
}

// start workers for the current chunk
ctx.countStarted += chunk.length;
chunk.forEach(function(page) {
ctx.worker(page, thisProxy);
});
};

var fnDoneOne = function() {
ctx.countFinished++;

// update overall status line
var total = ctx.pageList.length;
if (ctx.countFinished === total) {
var statusString = "Done (" + ctx.countFinishedSuccess +
"/" + ctx.countFinished + " actions completed successfully)";
if (ctx.countFinishedSuccess < ctx.countFinished) {
ctx.statusElement.warn(statusString);
} else {
ctx.statusElement.info(statusString);
}
Morebits.wiki.removeCheckpoint();
ctx.running = false;
return;
}

// just for giggles! (well, serious debugging, actually)
if (ctx.countFinished > total) {
ctx.statusElement.warn("Done (overshot by " + (ctx.countFinished - total) + ")");
Morebits.wiki.removeCheckpoint();
ctx.running = false;
return;
}

ctx.statusElement.status(parseInt(100 * ctx.countFinished / total, 10) + "%");

// start a new chunk if we're close enough to the end of the previous chunk, and
// we haven't already started the next one
if (ctx.countFinished >= (ctx.countStarted - Math.max(ctx.options.chunkSize / 10, 2)) &&
Math.floor(ctx.countFinished / ctx.options.chunkSize) > ctx.currentChunkIndex) {
fnStartNewChunk();
}
};
};



/**
* **************** Morebits.simpleWindow ****************
* A simple draggable window
* now a wrapper for jQuery UI's dialog feature
*/

/**
* @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");

// add background gradient to titlebar
var $titlebar = $widget.find(".ui-dialog-titlebar");
var oldstyle = $titlebar.attr("style");
$titlebar.attr("style", (oldstyle ? oldstyle : "") + '; background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAkCAMAAAB%2FqqA%2BAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAEhQTFRFr73ZobTPusjdsMHZp7nVwtDhzNbnwM3fu8jdq7vUt8nbxtDkw9DhpbfSvMrfssPZqLvVztbno7bRrr7W1d%2Fs1N7qydXk0NjpkW7Q%2BgAAADVJREFUeNoMwgESQCAAAMGLkEIi%2FP%2BnbnbpdB59app5Vdg0sXAoMZCpGoFbK6ciuy6FX4ABAEyoAef0BXOXAAAAAElFTkSuQmCC) !important;');

// 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"));
// 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
* @returns {Morebits.simpleWindow}
*/
addFooterLink: function( text, wikiPage ) {
var $footerlinks = $(this.content).dialog("widget").find(".morebits-dialog-footerlinks");
if (this.hasFooterLinks) {
var bullet = document.createElement("span");
bullet.textContent = " \u2022 "; // U+2022 BULLET
$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;
$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);
};


// Twinkle blacklist was removed per consensus at http://en.wikipedia.org/wiki/Wikipedia:Administrators%27_noticeboard/Archive221#New_Twinkle_blacklist_proposal



} ( 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;
window.QueryString = Morebits.queryString;
}

//</nowiki>

Latest revision as of 00:12, 8 December 2021

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