MediaWiki:Gadget-morebits.js

// /** * 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. *  - 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. * The latest development source is available at. */

( 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 */

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 */

Morebits.quickForm = function QuickForm( event, eventType ) { this.root = new Morebits.quickForm.element( { type: 'form', event: event, eventType:eventType } ); };

Morebits.quickForm.prototype.render = function QuickFormRender { var ret = this.root.render; ret.names = {}; return ret; };

Morebits.quickForm.prototype.append = function QuickFormAppend( data ) { return this.root.append( data ); };

Morebits.quickForm.element = function QuickFormElement( data ) { this.data = data; this.childs = []; this.id = Morebits.quickForm.element.id++; };

Morebits.quickForm.element.id = 0;

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; };

// This should be called without parameters: form.render 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( ! $.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 ( ! $.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 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'; };

Morebits.quickForm.element.generateTooltip = function QuickFormElementGenerateTooltip( node, data ) { $(' ', {			'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 them work for "dyninput" type fields at present) * * Morebits.quickForm.getElements(form, fieldName) *   Returns all form elements with a given field name or ID * * Morebits.quickForm.getCheckboxOrRadio(elementArray, value) *   Searches the array of elements for a checkbox or radio button with a certain |value| attribute * * Morebits.quickForm.getElementContainer(element) *   Returns the containing the form element, or the form element itself *   May not work as expected on checkboxes or radios * * Morebits.quickForm.getElementLabelObject(element) *   Gets the HTML element that contains the label of the given form element (mainly for internal use) * * Morebits.quickForm.getElementLabel(element) *   Gets the label text of the element * * Morebits.quickForm.setElementLabel(element, labelText) *   Sets the label of the element to the given text * * Morebits.quickForm.overrideElementLabel(element, temporaryLabelText) *   Stores the element's current label, and temporarily sets the label to the given text * * Morebits.quickForm.resetElementLabel(element) *   Restores the label stored by overrideElementLabel * * Morebits.quickForm.setElementVisibility(element, visibility) *   Shows or hides a form element plus its label and tooltip * * Morebits.quickForm.setElementTooltipVisibility(element, visibility) *   Shows or hides the "question mark" icon next to a form element */

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; };

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; };

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; };

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 element } else if (element instanceof HTMLFieldSetElement) { return element.getElementsByTagName("legend")[0];

// for textareas, the label is the sibling element } else if (element instanceof HTMLTextAreaElement) { return element.parentNode.getElementsByTagName("h5")[0];

// for others, the label is the sibling element } else { return element.parentNode.getElementsByTagName("label")[0]; }

return null; };

Morebits.quickForm.getElementLabel = function QuickFormGetElementLabel(element) { var labelElement = Morebits.quickForm.getElementLabelObject(element);

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

Morebits.quickForm.setElementLabel = function QuickFormSetElementLabel(element, labelText) { var labelElement = Morebits.quickForm.getElementLabelObject(element);

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

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); };

Morebits.quickForm.resetElementLabel = function QuickFormResetElementLabel(element) { if (element.hasAttribute("data-oldlabel")) { return Morebits.quickForm.setElementLabel(element, element.getAttribute("data-oldlabel")); }	return null; };

Morebits.quickForm.setElementVisibility = function QuickFormSetElementVisibility(element, visibility) { $(element).toggle(visibility); };

Morebits.quickForm.setElementTooltipVisibility = function QuickFormSetElementTooltipVisibility(element, visibility) { $(Morebits.quickForm.getElementContainer(element)).find(".morebits-tooltip").toggle(visibility); };

/** * **************** HTMLFormElement **************** * * getChecked: *  XXX Doesn't seem to work reliably across all browsers at the moment. -- see getChecked2 in twinkleunlink.js, which is better * *  Returns an array containing the values of elements with the given name, that has it's *   checked property set to true. (i.e. a checkbox or a radiobutton is checked), or select options *  that have selected set to true. (don't try to mix selects with radio/checkboxes, please) *  Type is optional and can specify if either radio or checkbox (for the event *   that both checkboxes and radiobuttons have the same name. */

HTMLFormElement.prototype.getChecked = function( name, type ) { var elements = this.elements[name]; if( !elements ) { // 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 **************** * * RegExp.escape: Will escape a string to be used in a RegExp */

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 ); },	splitWeightedByKeys: function( str, start, end, skip ) { 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( ! $.isArray( skip ) ) { if( skip === undefined ) { skip = []; } else if( typeof skip === 'string' ) { skip = [ skip ]; } else { throw new Error( "non-applicable skip parameter" ); }		}		for( var i = 0; i < str.length; ++i ) { for( var j = 0; j < skip.length; ++j ) { if( str.substr( i, skip[j].length ) === skip[j] ) { i += skip[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; },	// for deletion/other templates taking a freeform "reason" from a textarea (e.g. PROD, XFD, RPP) formatReasonText: function( str ) { var result = str.toString.trimRight; var unbinder = new Morebits.unbinder(result); unbinder.unbind("", ""); unbinder.content = unbinder.content.replace(/\|/g, ""); return unbinder.rebind; },	// a 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 **************** * * uniq(arr): returns a copy of the array with duplicates removed * * dups(arr): returns a copy of the array with the first instance of each value *           removed; subsequent instances of those values (duplicates) remain * * chunk(arr, size): breaks up |arr| into smaller arrays of length |size|, and *                  returns an array of these "chunked" arrays */

Morebits.array = { uniq: function(arr) { if ( ! $.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; },	dups: function(arr) { if ( ! $.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; },	chunk: function( arr, size ) { if ( ! $.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 by Morebits.wikitext.page.commentOutImage */

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 = { unbind: function UnbinderUnbind( prefix, postfix ) { var re = new RegExp( prefix + '(.*?)' + postfix, 'g' ); this.content = this.content.replace( re, Morebits.unbinder.getCallback( this ) ); },	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 parameters: *   currentAction: the current action (required) *   query: the query (required) *   onSuccess: the function to call when request gotten *   statusElement: a Morebits.status object to use for status messages (optional) *   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

// post: carries out the request // 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, jqXHR) {				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 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. * * * NOTE: This list of member functions is incomplete. * * 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) * * load(onSuccess, onFailure): Loads the text for the page *   onSuccess - callback function which is called when the load has succeeded *   onFailure - callback function which is called when the load fails (optional) * * save(onSuccess, onFailure): Saves the text for the page. Must be preceded by calling load. *   onSuccess - callback function which is called when the save has succeeded (optional) *   onFailure - callback function which is called when the save fails (optional) *   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. *   onSuccess - callback function which is called when the method has succeeded (optional) *   onFailure - callback function which is called when the method fails (optional) * * prepend(onSuccess, onFailure): Adds the text provided via setPrependText to the start of the page. *                               Does not require calling load first. *   onSuccess - callback function which is called when the method has succeeded (optional) *   onFailure - callback function which is called when the method fails (optional) * * getPageName: returns a string containing the name of the loaded page, including the namespace * * getPageText: returns a string containing the text of the page after a successful load * * setPageText(pageText) *   pageText - string containing the updated page text that will be saved when save is called * * setAppendText(appendText) *   appendText - string containing the text that will be appended to the page when append is called * * setPrependText(prependText) *   prependText - string containing the text that will be prepended to the page when prepend is called * * setEditSummary(summary) *   summary - string containing the text of the edit summary that will be used when save is called * * setMinorEdit(minorEdit) *   minorEdit is a 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) * * setBotEdit(botEdit) *   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) * * setPageSection(pageSection) *   pageSection - integer specifying the section number to load or save. The default is |null|, which means *                 that the entire page will be retrieved. * * setMaxConflictRetries(maxRetries) *   maxRetries - number of retries for save errors involving an edit conflict or loss of edit token *   default: 2 * * setMaxRetries(maxRetries) *   maxRetries - number of retries for save errors not involving an edit conflict or loss of edit token *   default: 2 * * 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 * * setFollowRedirect(followRedirect) *   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) * * setWatchlist(watchlistOption) *   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) * * setWatchlistFromPreferences(watchlistOption) *   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'. * * setCreateOption(createOption) *   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) * * exists: returns true if the page existed on the wiki when it was last loaded * * 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 * * getCurrentID: returns a string containing the current revision ID of the page * * patrol: marks the page as patrolled, if possible * * move(onSuccess, onFailure): Moves a page to another title * * deletePage(onSuccess, onFailure): Deletes a page (for admins only) * */

/** * 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. */

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 { };

/**	 * Public interface accessors */	this.getPageName = function { return ctx.pageName; };

this.getPageText = function { return ctx.pageText; };

this.setPageText = function(pageText) { ctx.editMode = 'all'; ctx.pageText = pageText; };

this.setAppendText = function(appendText) { ctx.editMode = 'append'; ctx.appendText = appendText; };

this.setPrependText = function(prependText) { ctx.editMode = 'prepend'; ctx.prependText = prependText; };

this.setEditSummary = function(summary) { ctx.editSummary = summary; };

this.setCreateOption = function(createOption) { ctx.createOption = createOption; };

this.setMinorEdit = function(minorEdit) { ctx.minorEdit = minorEdit; };

this.setBotEdit = function(botEdit) { ctx.botEdit = botEdit; };

this.setPageSection = function(pageSection) { ctx.pageSection = pageSection; };

this.setMaxConflictRetries = function(maxRetries) { ctx.maxConflictRetries = maxRetries; };

this.setMaxRetries = function(maxRetries) { ctx.maxRetries = maxRetries; };

this.setCallbackParameters = function(callbackParameters) { ctx.callbackParameters = callbackParameters; };

this.getCallbackParameters = function { return ctx.callbackParameters; };

this.getCreator = function { return ctx.creator; };

this.setOldID = function(oldID) { ctx.revertOldID = oldID; };

this.getCurrentID = function { return ctx.revertCurID; };

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

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; };

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

this.getStatusElement = function { return ctx.statusElement; };

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; };

this.setWatchlist = function(flag) { if (flag) { ctx.watchlistOption = 'watch'; } else { ctx.watchlistOption = 'nochange'; }	};

this.setWatchlistFromPreferences = function(flag) { if (flag) { ctx.watchlistOption = 'preferences'; } else { ctx.watchlistOption = 'nochange'; }	};

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

this.exists = function { return ctx.pageExists; };

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; };

// Save updated .pageText to Wikipedia // Only valid after successful .load 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; };

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); }	};

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); }	};

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; };

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; }	};

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); };

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	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; }	};

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". */	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 = " "; } else { ctx.statusElement.error("Failed to retrieve user who made the revision."); ctx.onLoadFailure(this); return; }			}			// set revert edit summary ctx.editSummary = "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); var result = 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. * * Constructor: Morebits.wiki.preview(previewbox, currentAction) *   previewbox - the element that will contain the rendered HTML * * beginRender(wikitext): Displays the preview box, and begins an asynchronous attempt *                       to render the specified wikitext. *   wikitext - wikitext to render; most things should work, including subst: and ~ *   pageTitle - optional parameter for the page this should be rendered as being on * * closePreview: Hides the preview box and clears it. * * 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. */

Morebits.wiki.preview = function(previewbox) { this.previewbox = previewbox; $(previewbox).addClass("morebits-previewbox").hide;

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.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 === ''' ) { 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; } };

Morebits.wikitext.page = function mediawikiPage( text ) { this.text = text; };

Morebits.wikitext.page.prototype = { text: '', 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 ); var link_simple_re = new RegExp( "\\[\\[:?(" + link_re_string + ")\\]\\]", 'g' ); var link_named_re = new RegExp( "\\[\\[:?" + link_re_string + "\\|(.+?)\\]\\]", 'g' ); this.text = this.text.replace( link_simple_re, "$1" ).replace( link_named_re, "$1" ); },	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. 		 * 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 = ''; 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 Image: 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, "" );

// unbind the newly created comments unbinder.unbind( '' ); /*		 * Check free image usages, for example as template arguments, might have the Image: 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, "" );

// Rebind the content now, we are done! this.text = unbinder.rebind; },	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 ); },	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 object * * Functions: * * Morebits.queryString.exists(key) *    returns true if the particular key is set * Morebits.queryString.get(key) *    returns the value associated to the key * Morebits.queryString.equals(key, value) *    returns true if the value associated with given key equals given value * Morebits.queryString.toString *    returns the query string as a string * Morebits.queryString.create( hash ) *    creates an querystring and encodes strings via encodeURIComponent and joins arrays with | * * 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'); */ 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.prototype.get = function(key) { return this.params[key] ? this.params[key] : null; };

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

Morebits.queryString.prototype.exists = function(key) { return this.params[key] ? true : false; };

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

Morebits.queryString.prototype.equals = function(key, value) { return this.params[key] === value ? true : false; };

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

Morebits.queryString.prototype.toString = function { return this.string ? this.string : null; };

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( $.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('&'); }; 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 ( $.isFunction( handler ) ) { 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 ( ! $.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 if (console && console.error) { console.error(this.textRaw + ": " + status); }			}		}		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 cb = 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; for (var i=0; i-1) break; } if (cbs[i]==lastCheckbox) { lastIndex=i; if (index>-1) break; } }			if (index>-1 && lastIndex>-1) {				//inspired by wikibits var endState = cb.checked; var start, finish; if (index<lastIndex) {					start = index+1; finish = lastIndex; }				else {					start = lastIndex; finish = index-1; }				for (var i=start; i<=finish; i++) cbs[i].checked = endState; }		}		lastCheckbox = cb; 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. */

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; };

this.setPageList = function(pageList) { ctx.pageList = pageList; };

this.setOption = function(optionName, optionValue) { ctx.options[optionName] = optionValue; };

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 */

// The height passed in here is 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, ui) {				// dialogs and their content can be destroyed once closed				$(event.target).dialog("destroy").remove;			},			resizeStart: function(event, ui) {				this.scrollbox = $(this).find(".morebits-scrollbox")[0];				if (this.scrollbox) {					this.scrollbox.style.maxHeight = "none";				}			},			resizeEnd: function(event, ui) {				this.scrollbox = null; },			resize: function(event, ui) { 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. focus: function(event) { $(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. 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. 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; setupTooltips(dialog.parent[0]); }		this.setHeight( this.height ); // init height algorithm

return this; },	// Sets the dialog title. 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". setScriptName: function( name ) { this.scriptName = name;

return this; },	// Sets the dialog width. 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. 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... setContent: function( content ) { this.purgeContent; this.addContent( content );

return this; },	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; },	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. 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; },	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. 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... window.SimpleWindow = Morebits.simpleWindow; window.QuickForm = Morebits.quickForm; window.Wikipedia = Morebits.wiki; window.Status = Morebits.status; window.QueryString = Morebits.queryString; }

//