1/**
  2 * @output wp-includes/js/wp-lists.js
  3 */
  4
  5/* global ajaxurl, wpAjax */
  6
  7/**
  8 * @param {jQuery} $ jQuery object.
  9 */
 10( function( $ ) {
 11var functions = {
 12	add:     'ajaxAdd',
 13	del:     'ajaxDel',
 14	dim:     'ajaxDim',
 15	process: 'process',
 16	recolor: 'recolor'
 17}, wpList;
 18
 19/**
 20 * @namespace
 21 */
 22wpList = {
 23
 24	/**
 25	 * @member {object}
 26	 */
 27	settings: {
 28
 29		/**
 30		 * URL for Ajax requests.
 31		 *
 32		 * @member {string}
 33		 */
 34		url: ajaxurl,
 35
 36		/**
 37		 * The HTTP method to use for Ajax requests.
 38		 *
 39		 * @member {string}
 40		 */
 41		type: 'POST',
 42
 43		/**
 44		 * ID of the element the parsed Ajax response will be stored in.
 45		 *
 46		 * @member {string}
 47		 */
 48		response: 'ajax-response',
 49
 50		/**
 51		 * The type of list.
 52		 *
 53		 * @member {string}
 54		 */
 55		what: '',
 56
 57		/**
 58		 * CSS class name for alternate styling.
 59		 *
 60		 * @member {string}
 61		 */
 62		alt: 'alternate',
 63
 64		/**
 65		 * Offset to start alternate styling from.
 66		 *
 67		 * @member {number}
 68		 */
 69		altOffset: 0,
 70
 71		/**
 72		 * Color used in animation when adding an element.
 73		 *
 74		 * Can be 'none' to disable the animation.
 75		 *
 76		 * @member {string}
 77		 */
 78		addColor: '#ffff33',
 79
 80		/**
 81		 * Color used in animation when deleting an element.
 82		 *
 83		 * Can be 'none' to disable the animation.
 84		 *
 85		 * @member {string}
 86		 */
 87		delColor: '#faafaa',
 88
 89		/**
 90		 * Color used in dim add animation.
 91		 *
 92		 * Can be 'none' to disable the animation.
 93		 *
 94		 * @member {string}
 95		 */
 96		dimAddColor: '#ffff33',
 97
 98		/**
 99		 * Color used in dim delete animation.
100		 *
101		 * Can be 'none' to disable the animation.
102		 *
103		 * @member {string}
104		 */
105		dimDelColor: '#ff3333',
106
107		/**
108		 * Callback that's run before a request is made.
109		 *
110		 * @callback wpList~confirm
111		 * @param {object}      this
112		 * @param {HTMLElement} list            The list DOM element.
113		 * @param {object}      settings        Settings for the current list.
114		 * @param {string}      action          The type of action to perform: 'add', 'delete', or 'dim'.
115		 * @param {string}      backgroundColor Background color of the list's DOM element.
116		 * @return {boolean} Whether to proceed with the action or not.
117		 */
118		confirm: null,
119
120		/**
121		 * Callback that's run before an item gets added to the list.
122		 *
123		 * Allows to cancel the request.
124		 *
125		 * @callback wpList~addBefore
126		 * @param {object} settings Settings for the Ajax request.
127		 * @return {object|boolean} Settings for the Ajax request or false to abort.
128		 */
129		addBefore: null,
130
131		/**
132		 * Callback that's run after an item got added to the list.
133		 *
134		 * @callback wpList~addAfter
135		 * @param {XML}    returnedResponse Raw response returned from the server.
136		 * @param {object} settings         Settings for the Ajax request.
137		 * @param {jqXHR}  settings.xml     jQuery XMLHttpRequest object.
138		 * @param {string} settings.status  Status of the request: 'success', 'notmodified', 'nocontent', 'error',
139		 *                                  'timeout', 'abort', or 'parsererror'.
140		 * @param {object} settings.parsed  Parsed response object.
141		 */
142		addAfter: null,
143
144		/**
145		 * Callback that's run before an item gets deleted from the list.
146		 *
147		 * Allows to cancel the request.
148		 *
149		 * @callback wpList~delBefore
150		 * @param {object}      settings Settings for the Ajax request.
151		 * @param {HTMLElement} list     The list DOM element.
152		 * @return {object|boolean} Settings for the Ajax request or false to abort.
153		 */
154		delBefore: null,
155
156		/**
157		 * Callback that's run after an item got deleted from the list.
158		 *
159		 * @callback wpList~delAfter
160		 * @param {XML}    returnedResponse Raw response returned from the server.
161		 * @param {object} settings         Settings for the Ajax request.
162		 * @param {jqXHR}  settings.xml     jQuery XMLHttpRequest object.
163		 * @param {string} settings.status  Status of the request: 'success', 'notmodified', 'nocontent', 'error',
164		 *                                  'timeout', 'abort', or 'parsererror'.
165		 * @param {object} settings.parsed  Parsed response object.
166		 */
167		delAfter: null,
168
169		/**
170		 * Callback that's run before an item gets dim'd.
171		 *
172		 * Allows to cancel the request.
173		 *
174		 * @callback wpList~dimBefore
175		 * @param {object} settings Settings for the Ajax request.
176		 * @return {object|boolean} Settings for the Ajax request or false to abort.
177		 */
178		dimBefore: null,
179
180		/**
181		 * Callback that's run after an item got dim'd.
182		 *
183		 * @callback wpList~dimAfter
184		 * @param {XML}    returnedResponse Raw response returned from the server.
185		 * @param {object} settings         Settings for the Ajax request.
186		 * @param {jqXHR}  settings.xml     jQuery XMLHttpRequest object.
187		 * @param {string} settings.status  Status of the request: 'success', 'notmodified', 'nocontent', 'error',
188		 *                                  'timeout', 'abort', or 'parsererror'.
189		 * @param {object} settings.parsed  Parsed response object.
190		 */
191		dimAfter: null
192	},
193
194	/**
195	 * Finds a nonce.
196	 *
197	 * 1. Nonce in settings.
198	 * 2. `_ajax_nonce` value in element's href attribute.
199	 * 3. `_ajax_nonce` input field that is a descendant of element.
200	 * 4. `_wpnonce` value in element's href attribute.
201	 * 5. `_wpnonce` input field that is a descendant of element.
202	 * 6. 0 if none can be found.
203	 *
204	 * @param {jQuery} element  Element that triggered the request.
205	 * @param {Object} settings Settings for the Ajax request.
206	 * @return {string|number} Nonce
207	 */
208	nonce: function( element, settings ) {
209		var url      = wpAjax.unserialize( element.attr( 'href' ) ),
210			$element = $( '#' + settings.element );
211
212		return settings.nonce || url._ajax_nonce || $element.find( 'input[name="_ajax_nonce"]' ).val() || url._wpnonce || $element.find( 'input[name="_wpnonce"]' ).val() || 0;
213	},
214
215	/**
216	 * Extract list item data from a DOM element.
217	 *
218	 * Example 1: data-wp-lists="delete:the-comment-list:comment-{comment_ID}:66cc66:unspam=1"
219	 * Example 2: data-wp-lists="dim:the-comment-list:comment-{comment_ID}:unapproved:e7e7d3:e7e7d3:new=approved"
220	 *
221	 * Returns an unassociative array with the following data:
222	 * data[0] - Data identifier: 'list', 'add', 'delete', or 'dim'.
223	 * data[1] - ID of the corresponding list. If data[0] is 'list', the type of list ('comment', 'category', etc).
224	 * data[2] - ID of the parent element of all inputs necessary for the request.
225	 * data[3] - Hex color to be used in this request. If data[0] is 'dim', dim class.
226	 * data[4] - Additional arguments in query syntax that are added to the request. Example: 'post_id=1234'.
227	 *           If data[0] is 'dim', dim add color.
228	 * data[5] - Only available if data[0] is 'dim', dim delete color.
229	 * data[6] - Only available if data[0] is 'dim', additional arguments in query syntax that are added to the request.
230	 *
231	 * Result for Example 1:
232	 * data[0] - delete
233	 * data[1] - the-comment-list
234	 * data[2] - comment-{comment_ID}
235	 * data[3] - 66cc66
236	 * data[4] - unspam=1
237	 *
238	 * @param {HTMLElement} element The DOM element.
239	 * @param {string}      type    The type of data to look for: 'list', 'add', 'delete', or 'dim'.
240	 * @return {Array} Extracted list item data.
241	 */
242	parseData: function( element, type ) {
243		var data = [], wpListsData;
244
245		try {
246			wpListsData = $( element ).data( 'wp-lists' ) || '';
247			wpListsData = wpListsData.match( new RegExp( type + ':[\\S]+' ) );
248
249			if ( wpListsData ) {
250				data = wpListsData[0].split( ':' );
251			}
252		} catch ( error ) {}
253
254		return data;
255	},
256
257	/**
258	 * Calls a confirm callback to verify the action that is about to be performed.
259	 *
260	 * @param {HTMLElement} list     The DOM element.
261	 * @param {Object}      settings Settings for this list.
262	 * @param {string}      action   The type of action to perform: 'add', 'delete', or 'dim'.
263	 * @return {Object|boolean} Settings if confirmed, false if not.
264	 */
265	pre: function( list, settings, action ) {
266		var $element, backgroundColor, confirmed;
267
268		settings = $.extend( {}, this.wpList.settings, {
269			element: null,
270			nonce:   0,
271			target:  list.get( 0 )
272		}, settings || {} );
273
274		if ( typeof settings.confirm === 'function' ) {
275			$element = $( '#' + settings.element );
276
277			if ( 'add' !== action ) {
278				backgroundColor = $element.css( 'backgroundColor' );
279				$element.css( 'backgroundColor', '#ff9966' );
280			}
281
282			confirmed = settings.confirm.call( this, list, settings, action, backgroundColor );
283
284			if ( 'add' !== action ) {
285				$element.css( 'backgroundColor', backgroundColor );
286			}
287
288			if ( ! confirmed ) {
289				return false;
290			}
291		}
292
293		return settings;
294	},
295
296	/**
297	 * Adds an item to the list via Ajax.
298	 *
299	 * @param {HTMLElement} element  The DOM element.
300	 * @param {Object}      settings Settings for this list.
301	 * @return {boolean} Whether the item was added.
302	 */
303	ajaxAdd: function( element, settings ) {
304		var list     = this,
305			$element = $( element ),
306			data     = wpList.parseData( $element, 'add' ),
307			formValues, formData, parsedResponse, returnedResponse;
308
309		settings = settings || {};
310		settings = wpList.pre.call( list, $element, settings, 'add' );
311
312		settings.element  = data[2] || $element.prop( 'id' ) || settings.element || null;
313		settings.addColor = data[3] ? '#' + data[3] : settings.addColor;
314
315		if ( ! settings ) {
316			return false;
317		}
318
319		if ( ! $element.is( '[id="' + settings.element + '-submit"]' ) ) {
320			return ! wpList.add.call( list, $element, settings );
321		}
322
323		if ( ! settings.element ) {
324			return true;
325		}
326
327		settings.action = 'add-' + settings.what;
328		settings.nonce  = wpList.nonce( $element, settings );
329
330		if ( ! wpAjax.validateForm( '#' + settings.element ) ) {
331			return false;
332		}
333
334		settings.data = $.param( $.extend( {
335			_ajax_nonce: settings.nonce,
336			action:      settings.action
337		}, wpAjax.unserialize( data[4] || '' ) ) );
338
339		formValues = $( '#' + settings.element + ' :input' ).not( '[name="_ajax_nonce"], [name="_wpnonce"], [name="action"]' );
340		formData   = typeof formValues.fieldSerialize === 'function' ? formValues.fieldSerialize() : formValues.serialize();
341
342		if ( formData ) {
343			settings.data += '&' + formData;
344		}
345
346		if ( typeof settings.addBefore === 'function' ) {
347			settings = settings.addBefore( settings );
348
349			if ( ! settings ) {
350				return true;
351			}
352		}
353
354		if ( ! settings.data.match( /_ajax_nonce=[a-f0-9]+/ ) ) {
355			return true;
356		}
357
358		settings.success = function( response ) {
359			parsedResponse   = wpAjax.parseAjaxResponse( response, settings.response, settings.element );
360			returnedResponse = response;
361
362			if ( ! parsedResponse || parsedResponse.errors ) {
363				return false;
364			}
365
366			if ( true === parsedResponse ) {
367				return true;
368			}
369
370			$.each( parsedResponse.responses, function() {
371				wpList.add.call( list, this.data, $.extend( {}, settings, { // this.firstChild.nodevalue
372					position: this.position || 0,
373					id:       this.id || 0,
374					oldId:    this.oldId || null
375				} ) );
376			} );
377
378			list.wpList.recolor();
379			$( list ).trigger( 'wpListAddEnd', [ settings, list.wpList ] );
380			wpList.clear.call( list, '#' + settings.element );
381		};
382
383		settings.complete = function( jqXHR, status ) {
384			if ( typeof settings.addAfter === 'function' ) {
385				settings.addAfter( returnedResponse, $.extend( {
386					xml:    jqXHR,
387					status: status,
388					parsed: parsedResponse
389				}, settings ) );
390			}
391		};
392
393		$.ajax( settings );
394
395		return false;
396	},
397
398	/**
399	 * Delete an item in the list via Ajax.
400	 *
401	 * @param {HTMLElement} element  A DOM element containing item data.
402	 * @param {Object}      settings Settings for this list.
403	 * @return {boolean} Whether the item was deleted.
404	 */
405	ajaxDel: function( element, settings ) {
406		var list     = this,
407			$element = $( element ),
408			data     = wpList.parseData( $element, 'delete' ),
409			$eventTarget, parsedResponse, returnedResponse;
410
411		settings = settings || {};
412		settings = wpList.pre.call( list, $element, settings, 'delete' );
413
414		settings.element  = data[2] || settings.element || null;
415		settings.delColor = data[3] ? '#' + data[3] : settings.delColor;
416
417		if ( ! settings || ! settings.element ) {
418			return false;
419		}
420
421		settings.action = 'delete-' + settings.what;
422		settings.nonce  = wpList.nonce( $element, settings );
423
424		settings.data = $.extend( {
425			_ajax_nonce: settings.nonce,
426			action:      settings.action,
427			id:          settings.element.split( '-' ).pop()
428		}, wpAjax.unserialize( data[4] || '' ) );
429
430		if ( typeof settings.delBefore === 'function' ) {
431			settings = settings.delBefore( settings, list );
432
433			if ( ! settings ) {
434				return true;
435			}
436		}
437
438		if ( ! settings.data._ajax_nonce ) {
439			return true;
440		}
441
442		$eventTarget = $( '#' + settings.element );
443
444		if ( 'none' !== settings.delColor ) {
445			$eventTarget.css( 'backgroundColor', settings.delColor ).fadeOut( 350, function() {
446				list.wpList.recolor();
447				$( list ).trigger( 'wpListDelEnd', [ settings, list.wpList ] );
448			} );
449		} else {
450			list.wpList.recolor();
451			$( list ).trigger( 'wpListDelEnd', [ settings, list.wpList ] );
452		}
453
454		settings.success = function( response ) {
455			parsedResponse   = wpAjax.parseAjaxResponse( response, settings.response, settings.element );
456			returnedResponse = response;
457
458			if ( ! parsedResponse || parsedResponse.errors ) {
459				$eventTarget.stop().stop().css( 'backgroundColor', '#faa' ).show().queue( function() {
460					list.wpList.recolor();
461					$( this ).dequeue();
462				} );
463
464				return false;
465			}
466		};
467
468		settings.complete = function( jqXHR, status ) {
469			if ( typeof settings.delAfter === 'function' ) {
470				$eventTarget.queue( function() {
471					settings.delAfter( returnedResponse, $.extend( {
472						xml:    jqXHR,
473						status: status,
474						parsed: parsedResponse
475					}, settings ) );
476				} ).dequeue();
477			}
478		};
479
480		$.ajax( settings );
481
482		return false;
483	},
484
485	/**
486	 * Dim an item in the list via Ajax.
487	 *
488	 * @param {HTMLElement} element  A DOM element containing item data.
489	 * @param {Object}      settings Settings for this list.
490	 * @return {boolean} Whether the item was dim'ed.
491	 */
492	ajaxDim: function( element, settings ) {
493		var list     = this,
494			$element = $( element ),
495			data     = wpList.parseData( $element, 'dim' ),
496			$eventTarget, isClass, color, dimColor, parsedResponse, returnedResponse;
497
498		// Prevent hidden links from being clicked by hotkeys.
499		if ( 'none' === $element.parent().css( 'display' ) ) {
500			return false;
501		}
502
503		settings = settings || {};
504		settings = wpList.pre.call( list, $element, settings, 'dim' );
505
506		settings.element     = data[2] || settings.element || null;
507		settings.dimClass    = data[3] || settings.dimClass || null;
508		settings.dimAddColor = data[4] ? '#' + data[4] : settings.dimAddColor;
509		settings.dimDelColor = data[5] ? '#' + data[5] : settings.dimDelColor;
510
511		if ( ! settings || ! settings.element || ! settings.dimClass ) {
512			return true;
513		}
514
515		settings.action = 'dim-' + settings.what;
516		settings.nonce  = wpList.nonce( $element, settings );
517
518		settings.data = $.extend( {
519			_ajax_nonce: settings.nonce,
520			action:      settings.action,
521			id:          settings.element.split( '-' ).pop(),
522			dimClass:    settings.dimClass
523		}, wpAjax.unserialize( data[6] || '' ) );
524
525		if ( typeof settings.dimBefore === 'function' ) {
526			settings = settings.dimBefore( settings );
527
528			if ( ! settings ) {
529				return true;
530			}
531		}
532
533		$eventTarget = $( '#' + settings.element );
534		isClass      = $eventTarget.toggleClass( settings.dimClass ).is( '.' + settings.dimClass );
535		color        = wpList.getColor( $eventTarget );
536		dimColor     = isClass ? settings.dimAddColor : settings.dimDelColor;
537		$eventTarget.toggleClass( settings.dimClass );
538
539		if ( 'none' !== dimColor ) {
540			$eventTarget
541				.animate( { backgroundColor: dimColor }, 'fast' )
542				.queue( function() {
543					$eventTarget.toggleClass( settings.dimClass );
544					$( this ).dequeue();
545				} )
546				.animate( { backgroundColor: color }, {
547					complete: function() {
548						$( this ).css( 'backgroundColor', '' );
549						$( list ).trigger( 'wpListDimEnd', [ settings, list.wpList ] );
550					}
551				} );
552		} else {
553			$( list ).trigger( 'wpListDimEnd', [ settings, list.wpList ] );
554		}
555
556		if ( ! settings.data._ajax_nonce ) {
557			return true;
558		}
559
560		settings.success = function( response ) {
561			parsedResponse   = wpAjax.parseAjaxResponse( response, settings.response, settings.element );
562			returnedResponse = response;
563
564			if ( true === parsedResponse ) {
565				return true;
566			}
567
568			if ( ! parsedResponse || parsedResponse.errors ) {
569				$eventTarget.stop().stop().css( 'backgroundColor', '#ff3333' )[isClass ? 'removeClass' : 'addClass']( settings.dimClass ).show().queue( function() {
570					list.wpList.recolor();
571					$( this ).dequeue();
572				} );
573
574				return false;
575			}
576
577			/** @property {string} comment_link Link of the comment to be dimmed. */
578			if ( 'undefined' !== typeof parsedResponse.responses[0].supplemental.comment_link ) {
579				var $submittedOn = $element.find( '.submitted-on' ),
580					$commentLink = $submittedOn.find( 'a' );
581
582				// Comment is approved; link the date field.
583				if ( '' !== parsedResponse.responses[0].supplemental.comment_link ) {
584					$submittedOn.html( $('<a></a>').text( $submittedOn.text() ).prop( 'href', parsedResponse.responses[0].supplemental.comment_link ) );
585
586				// Comment is not approved; unlink the date field.
587				} else if ( $commentLink.length ) {
588					$submittedOn.text( $commentLink.text() );
589				}
590			}
591		};
592
593		settings.complete = function( jqXHR, status ) {
594			if ( typeof settings.dimAfter === 'function' ) {
595				$eventTarget.queue( function() {
596					settings.dimAfter( returnedResponse, $.extend( {
597						xml:    jqXHR,
598						status: status,
599						parsed: parsedResponse
600					}, settings ) );
601				} ).dequeue();
602			}
603		};
604
605		$.ajax( settings );
606
607		return false;
608	},
609
610	/**
611	 * Returns the background color of the passed element.
612	 *
613	 * @param {jQuery|string} element Element to check.
614	 * @return {string} Background color value in HEX. Default: '#ffffff'.
615	 */
616	getColor: function( element ) {
617		return $( element ).css( 'backgroundColor' ) || '#ffffff';
618	},
619
620	/**
621	 * Adds something.
622	 *
623	 * @param {HTMLElement} element  A DOM element containing item data.
624	 * @param {Object}      settings Settings for this list.
625	 * @return {boolean} Whether the item was added.
626	 */
627	add: function( element, settings ) {
628		var $list    = $( this ),
629			$element = $( element ),
630			old      = false,
631			position, reference;
632
633		if ( 'string' === typeof settings ) {
634			settings = { what: settings };
635		}
636
637		settings = $.extend( { position: 0, id: 0, oldId: null }, this.wpList.settings, settings );
638
639		if ( ! $element.length || ! settings.what ) {
640			return false;
641		}
642
643		if ( settings.oldId ) {
644			old = $( '#' + settings.what + '-' + settings.oldId );
645		}
646
647		if ( settings.id && ( settings.id !== settings.oldId || ! old || ! old.length ) ) {
648			$( '#' + settings.what + '-' + settings.id ).remove();
649		}
650
651		if ( old && old.length ) {
652			old.before( $element );
653			old.remove();
654
655		} else if ( isNaN( settings.position ) ) {
656			position = 'after';
657
658			if ( '-' === settings.position.substr( 0, 1 ) ) {
659				settings.position = settings.position.substr( 1 );
660				position = 'before';
661			}
662
663			reference = $list.find( '#' + settings.position );
664
665			if ( 1 === reference.length ) {
666				reference[position]( $element );
667			} else {
668				$list.append( $element );
669			}
670
671		} else if ( 'comment' !== settings.what || 0 === $( '#' + settings.element ).length ) {
672			if ( settings.position < 0 ) {
673				$list.prepend( $element );
674			} else {
675				$list.append( $element );
676			}
677		}
678
679		if ( settings.alt ) {
680			$element.toggleClass( settings.alt, ( $list.children( ':visible' ).index( $element[0] ) + settings.altOffset ) % 2 );
681		}
682
683		if ( 'none' !== settings.addColor ) {
684			$element.css( 'backgroundColor', settings.addColor ).animate( { backgroundColor: wpList.getColor( $element ) }, {
685				complete: function() {
686					$( this ).css( 'backgroundColor', '' );
687				}
688			} );
689		}
690
691		// Add event handlers.
692		$list.each( function( index, list ) {
693			list.wpList.process( $element );
694		} );
695
696		return $element;
697	},
698
699	/**
700	 * Clears all input fields within the element passed.
701	 *
702	 * @param {string} elementId ID of the element to check, including leading #.
703	 */
704	clear: function( elementId ) {
705		var list     = this,
706			$element = $( elementId ),
707			type, tagName;
708
709		// Bail if we're within the list.
710		if ( list.wpList && $element.parents( '#' + list.id ).length ) {
711			return;
712		}
713
714		// Check each input field.
715		$element.find( ':input' ).each( function( index, input ) {
716
717			// Bail if the form was marked to not to be cleared.
718			if ( $( input ).parents( '.form-no-clear' ).length ) {
719				return;
720			}
721
722			type    = input.type.toLowerCase();
723			tagName = input.tagName.toLowerCase();
724
725			if ( 'text' === type || 'password' === type || 'textarea' === tagName ) {
726				input.value = '';
727
728			} else if ( 'checkbox' === type || 'radio' === type ) {
729				input.checked = false;
730
731			} else if ( 'select' === tagName ) {
732				input.selectedIndex = null;
733			}
734		} );
735	},
736
737	/**
738	 * Registers event handlers to add, delete, and dim items.
739	 *
740	 * @param {string} elementId
741	 */
742	process: function( elementId ) {
743		var list     = this,
744			$element = $( elementId || document );
745
746		$element.on( 'submit', 'form[data-wp-lists^="add:' + list.id + ':"]', function() {
747			return list.wpList.add( this );
748		} );
749
750		$element.on( 'click', '[data-wp-lists^="add:' + list.id + ':"], input[data-wp-lists^="add:' + list.id + ':"]', function() {
751			return list.wpList.add( this );
752		} );
753
754		$element.on( 'click', '[data-wp-lists^="delete:' + list.id + ':"]', function() {
755			return list.wpList.del( this );
756		} );
757
758		$element.on( 'click', '[data-wp-lists^="dim:' + list.id + ':"]', function() {
759			return list.wpList.dim( this );
760		} );
761	},
762
763	/**
764	 * Updates list item background colors.
765	 */
766	recolor: function() {
767		var list    = this,
768			evenOdd = [':even', ':odd'],
769			items;
770
771		// Bail if there is no alternate class name specified.
772		if ( ! list.wpList.settings.alt ) {
773			return;
774		}
775
776		items = $( '.list-item:visible', list );
777
778		if ( ! items.length ) {
779			items = $( list ).children( ':visible' );
780		}
781
782		if ( list.wpList.settings.altOffset % 2 ) {
783			evenOdd.reverse();
784		}
785
786		items.filter( evenOdd[0] ).addClass( list.wpList.settings.alt ).end();
787		items.filter( evenOdd[1] ).removeClass( list.wpList.settings.alt );
788	},
789
790	/**
791	 * Sets up `process()` and `recolor()` functions.
792	 */
793	init: function() {
794		var $list = this;
795
796		$list.wpList.process = function( element ) {
797			$list.each( function() {
798				this.wpList.process( element );
799			} );
800		};
801
802		$list.wpList.recolor = function() {
803			$list.each( function() {
804				this.wpList.recolor();
805			} );
806		};
807	}
808};
809
810/**
811 * Initializes wpList object.
812 *
813 * @param {Object}           settings
814 * @param {string}           settings.url         URL for ajax calls. Default: ajaxurl.
815 * @param {string}           settings.type        The HTTP method to use for Ajax requests. Default: 'POST'.
816 * @param {string}           settings.response    ID of the element the parsed ajax response will be stored in.
817 *                                                Default: 'ajax-response'.
818 *
819 * @param {string}           settings.what        Default: ''.
820 * @param {string}           settings.alt         CSS class name for alternate styling. Default: 'alternate'.
821 * @param {number}           settings.altOffset   Offset to start alternate styling from. Default: 0.
822 * @param {string}           settings.addColor    Hex code or 'none' to disable animation. Default: '#ffff33'.
823 * @param {string}           settings.delColor    Hex code or 'none' to disable animation. Default: '#faafaa'.
824 * @param {string}           settings.dimAddColor Hex code or 'none' to disable animation. Default: '#ffff33'.
825 * @param {string}           settings.dimDelColor Hex code or 'none' to disable animation. Default: '#ff3333'.
826 *
827 * @param {wpList~confirm}   settings.confirm     Callback that's run before a request is made. Default: null.
828 * @param {wpList~addBefore} settings.addBefore   Callback that's run before an item gets added to the list.
829 *                                                Default: null.
830 * @param {wpList~addAfter}  settings.addAfter    Callback that's run after an item got added to the list.
831 *                                                Default: null.
832 * @param {wpList~delBefore} settings.delBefore   Callback that's run before an item gets deleted from the list.
833 *                                                Default: null.
834 * @param {wpList~delAfter}  settings.delAfter    Callback that's run after an item got deleted from the list.
835 *                                                Default: null.
836 * @param {wpList~dimBefore} settings.dimBefore   Callback that's run before an item gets dim'd. Default: null.
837 * @param {wpList~dimAfter}  settings.dimAfter    Callback that's run after an item got dim'd. Default: null.
838 * @return {$.fn} wpList API function.
839 */
840$.fn.wpList = function( settings ) {
841	this.each( function( index, list ) {
842		list.wpList = {
843			settings: $.extend( {}, wpList.settings, { what: wpList.parseData( list, 'list' )[1] || '' }, settings )
844		};
845
846		$.each( functions, function( func, callback ) {
847			list.wpList[func] = function( element, setting ) {
848				return wpList[callback].call( list, element, setting );
849			};
850		} );
851	} );
852
853	wpList.init.call( this );
854	this.wpList.process();
855
856	return this;
857};
858} ) ( jQuery );
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