dc2183c9a7fc8fc397ecbdfab1f56dfd0c3a2adc
[autoinstalls/wordpress.git] / wp-admin / js / nav-menu.js
1 /**
2  * WordPress Administration Navigation Menu
3  * Interface JS functions
4  *
5  * @version 2.0.0
6  *
7  * @package WordPress
8  * @subpackage Administration
9  */
10
11 /* global menus, postboxes, columns, isRtl, navMenuL10n, ajaxurl */
12
13 var wpNavMenu;
14
15 (function($) {
16
17         var api;
18
19         api = wpNavMenu = {
20
21                 options : {
22                         menuItemDepthPerLevel : 30, // Do not use directly. Use depthToPx and pxToDepth instead.
23                         globalMaxDepth : 11
24                 },
25
26                 menuList : undefined,   // Set in init.
27                 targetList : undefined, // Set in init.
28                 menusChanged : false,
29                 isRTL: !! ( 'undefined' != typeof isRtl && isRtl ),
30                 negateIfRTL: ( 'undefined' != typeof isRtl && isRtl ) ? -1 : 1,
31
32                 // Functions that run on init.
33                 init : function() {
34                         api.menuList = $('#menu-to-edit');
35                         api.targetList = api.menuList;
36
37                         this.jQueryExtensions();
38
39                         this.attachMenuEditListeners();
40
41                         this.setupInputWithDefaultTitle();
42                         this.attachQuickSearchListeners();
43                         this.attachThemeLocationsListeners();
44
45                         this.attachTabsPanelListeners();
46
47                         this.attachUnsavedChangesListener();
48
49                         if ( api.menuList.length )
50                                 this.initSortables();
51
52                         if ( menus.oneThemeLocationNoMenus )
53                                 $( '#posttype-page' ).addSelectedToMenu( api.addMenuItemToBottom );
54
55                         this.initManageLocations();
56
57                         this.initAccessibility();
58
59                         this.initToggles();
60
61                         this.initPreviewing();
62                 },
63
64                 jQueryExtensions : function() {
65                         // jQuery extensions
66                         $.fn.extend({
67                                 menuItemDepth : function() {
68                                         var margin = api.isRTL ? this.eq(0).css('margin-right') : this.eq(0).css('margin-left');
69                                         return api.pxToDepth( margin && -1 != margin.indexOf('px') ? margin.slice(0, -2) : 0 );
70                                 },
71                                 updateDepthClass : function(current, prev) {
72                                         return this.each(function(){
73                                                 var t = $(this);
74                                                 prev = prev || t.menuItemDepth();
75                                                 $(this).removeClass('menu-item-depth-'+ prev )
76                                                         .addClass('menu-item-depth-'+ current );
77                                         });
78                                 },
79                                 shiftDepthClass : function(change) {
80                                         return this.each(function(){
81                                                 var t = $(this),
82                                                         depth = t.menuItemDepth();
83                                                 $(this).removeClass('menu-item-depth-'+ depth )
84                                                         .addClass('menu-item-depth-'+ (depth + change) );
85                                         });
86                                 },
87                                 childMenuItems : function() {
88                                         var result = $();
89                                         this.each(function(){
90                                                 var t = $(this), depth = t.menuItemDepth(), next = t.next();
91                                                 while( next.length && next.menuItemDepth() > depth ) {
92                                                         result = result.add( next );
93                                                         next = next.next();
94                                                 }
95                                         });
96                                         return result;
97                                 },
98                                 shiftHorizontally : function( dir ) {
99                                         return this.each(function(){
100                                                 var t = $(this),
101                                                         depth = t.menuItemDepth(),
102                                                         newDepth = depth + dir;
103
104                                                 // Change .menu-item-depth-n class
105                                                 t.moveHorizontally( newDepth, depth );
106                                         });
107                                 },
108                                 moveHorizontally : function( newDepth, depth ) {
109                                         return this.each(function(){
110                                                 var t = $(this),
111                                                         children = t.childMenuItems(),
112                                                         diff = newDepth - depth,
113                                                         subItemText = t.find('.is-submenu');
114
115                                                 // Change .menu-item-depth-n class
116                                                 t.updateDepthClass( newDepth, depth ).updateParentMenuItemDBId();
117
118                                                 // If it has children, move those too
119                                                 if ( children ) {
120                                                         children.each(function() {
121                                                                 var t = $(this),
122                                                                         thisDepth = t.menuItemDepth(),
123                                                                         newDepth = thisDepth + diff;
124                                                                 t.updateDepthClass(newDepth, thisDepth).updateParentMenuItemDBId();
125                                                         });
126                                                 }
127
128                                                 // Show "Sub item" helper text
129                                                 if (0 === newDepth)
130                                                         subItemText.hide();
131                                                 else
132                                                         subItemText.show();
133                                         });
134                                 },
135                                 updateParentMenuItemDBId : function() {
136                                         return this.each(function(){
137                                                 var item = $(this),
138                                                         input = item.find( '.menu-item-data-parent-id' ),
139                                                         depth = parseInt( item.menuItemDepth(), 10 ),
140                                                         parentDepth = depth - 1,
141                                                         parent = item.prevAll( '.menu-item-depth-' + parentDepth ).first();
142
143                                                 if ( 0 === depth ) { // Item is on the top level, has no parent
144                                                         input.val(0);
145                                                 } else { // Find the parent item, and retrieve its object id.
146                                                         input.val( parent.find( '.menu-item-data-db-id' ).val() );
147                                                 }
148                                         });
149                                 },
150                                 hideAdvancedMenuItemFields : function() {
151                                         return this.each(function(){
152                                                 var that = $(this);
153                                                 $('.hide-column-tog').not(':checked').each(function(){
154                                                         that.find('.field-' + $(this).val() ).addClass('hidden-field');
155                                                 });
156                                         });
157                                 },
158                                 /**
159                                  * Adds selected menu items to the menu.
160                                  *
161                                  * @param jQuery metabox The metabox jQuery object.
162                                  */
163                                 addSelectedToMenu : function(processMethod) {
164                                         if ( 0 === $('#menu-to-edit').length ) {
165                                                 return false;
166                                         }
167
168                                         return this.each(function() {
169                                                 var t = $(this), menuItems = {},
170                                                         checkboxes = ( menus.oneThemeLocationNoMenus && 0 === t.find( '.tabs-panel-active .categorychecklist li input:checked' ).length ) ? t.find( '#page-all li input[type="checkbox"]' ) : t.find( '.tabs-panel-active .categorychecklist li input:checked' ),
171                                                         re = /menu-item\[([^\]]*)/;
172
173                                                 processMethod = processMethod || api.addMenuItemToBottom;
174
175                                                 // If no items are checked, bail.
176                                                 if ( !checkboxes.length )
177                                                         return false;
178
179                                                 // Show the ajax spinner
180                                                 t.find('.spinner').show();
181
182                                                 // Retrieve menu item data
183                                                 $(checkboxes).each(function(){
184                                                         var t = $(this),
185                                                                 listItemDBIDMatch = re.exec( t.attr('name') ),
186                                                                 listItemDBID = 'undefined' == typeof listItemDBIDMatch[1] ? 0 : parseInt(listItemDBIDMatch[1], 10);
187
188                                                         if ( this.className && -1 != this.className.indexOf('add-to-top') )
189                                                                 processMethod = api.addMenuItemToTop;
190                                                         menuItems[listItemDBID] = t.closest('li').getItemData( 'add-menu-item', listItemDBID );
191                                                 });
192
193                                                 // Add the items
194                                                 api.addItemToMenu(menuItems, processMethod, function(){
195                                                         // Deselect the items and hide the ajax spinner
196                                                         checkboxes.removeAttr('checked');
197                                                         t.find('.spinner').hide();
198                                                 });
199                                         });
200                                 },
201                                 getItemData : function( itemType, id ) {
202                                         itemType = itemType || 'menu-item';
203
204                                         var itemData = {}, i,
205                                         fields = [
206                                                 'menu-item-db-id',
207                                                 'menu-item-object-id',
208                                                 'menu-item-object',
209                                                 'menu-item-parent-id',
210                                                 'menu-item-position',
211                                                 'menu-item-type',
212                                                 'menu-item-title',
213                                                 'menu-item-url',
214                                                 'menu-item-description',
215                                                 'menu-item-attr-title',
216                                                 'menu-item-target',
217                                                 'menu-item-classes',
218                                                 'menu-item-xfn'
219                                         ];
220
221                                         if( !id && itemType == 'menu-item' ) {
222                                                 id = this.find('.menu-item-data-db-id').val();
223                                         }
224
225                                         if( !id ) return itemData;
226
227                                         this.find('input').each(function() {
228                                                 var field;
229                                                 i = fields.length;
230                                                 while ( i-- ) {
231                                                         if( itemType == 'menu-item' )
232                                                                 field = fields[i] + '[' + id + ']';
233                                                         else if( itemType == 'add-menu-item' )
234                                                                 field = 'menu-item[' + id + '][' + fields[i] + ']';
235
236                                                         if (
237                                                                 this.name &&
238                                                                 field == this.name
239                                                         ) {
240                                                                 itemData[fields[i]] = this.value;
241                                                         }
242                                                 }
243                                         });
244
245                                         return itemData;
246                                 },
247                                 setItemData : function( itemData, itemType, id ) { // Can take a type, such as 'menu-item', or an id.
248                                         itemType = itemType || 'menu-item';
249
250                                         if( !id && itemType == 'menu-item' ) {
251                                                 id = $('.menu-item-data-db-id', this).val();
252                                         }
253
254                                         if( !id ) return this;
255
256                                         this.find('input').each(function() {
257                                                 var t = $(this), field;
258                                                 $.each( itemData, function( attr, val ) {
259                                                         if( itemType == 'menu-item' )
260                                                                 field = attr + '[' + id + ']';
261                                                         else if( itemType == 'add-menu-item' )
262                                                                 field = 'menu-item[' + id + '][' + attr + ']';
263
264                                                         if ( field == t.attr('name') ) {
265                                                                 t.val( val );
266                                                         }
267                                                 });
268                                         });
269                                         return this;
270                                 }
271                         });
272                 },
273
274                 countMenuItems : function( depth ) {
275                         return $( '.menu-item-depth-' + depth ).length;
276                 },
277
278                 moveMenuItem : function( $this, dir ) {
279
280                         var items, newItemPosition, newDepth,
281                                 menuItems = $( '#menu-to-edit li' ),
282                                 menuItemsCount = menuItems.length,
283                                 thisItem = $this.parents( 'li.menu-item' ),
284                                 thisItemChildren = thisItem.childMenuItems(),
285                                 thisItemData = thisItem.getItemData(),
286                                 thisItemDepth = parseInt( thisItem.menuItemDepth(), 10 ),
287                                 thisItemPosition = parseInt( thisItem.index(), 10 ),
288                                 nextItem = thisItem.next(),
289                                 nextItemChildren = nextItem.childMenuItems(),
290                                 nextItemDepth = parseInt( nextItem.menuItemDepth(), 10 ) + 1,
291                                 prevItem = thisItem.prev(),
292                                 prevItemDepth = parseInt( prevItem.menuItemDepth(), 10 ),
293                                 prevItemId = prevItem.getItemData()['menu-item-db-id'];
294
295                         switch ( dir ) {
296                         case 'up':
297                                 newItemPosition = thisItemPosition - 1;
298
299                                 // Already at top
300                                 if ( 0 === thisItemPosition )
301                                         break;
302
303                                 // If a sub item is moved to top, shift it to 0 depth
304                                 if ( 0 === newItemPosition && 0 !== thisItemDepth )
305                                         thisItem.moveHorizontally( 0, thisItemDepth );
306
307                                 // If prev item is sub item, shift to match depth
308                                 if ( 0 !== prevItemDepth )
309                                         thisItem.moveHorizontally( prevItemDepth, thisItemDepth );
310
311                                 // Does this item have sub items?
312                                 if ( thisItemChildren ) {
313                                         items = thisItem.add( thisItemChildren );
314                                         // Move the entire block
315                                         items.detach().insertBefore( menuItems.eq( newItemPosition ) ).updateParentMenuItemDBId();
316                                 } else {
317                                         thisItem.detach().insertBefore( menuItems.eq( newItemPosition ) ).updateParentMenuItemDBId();
318                                 }
319                                 break;
320                         case 'down':
321                                 // Does this item have sub items?
322                                 if ( thisItemChildren ) {
323                                         items = thisItem.add( thisItemChildren ),
324                                                 nextItem = menuItems.eq( items.length + thisItemPosition ),
325                                                 nextItemChildren = 0 !== nextItem.childMenuItems().length;
326
327                                         if ( nextItemChildren ) {
328                                                 newDepth = parseInt( nextItem.menuItemDepth(), 10 ) + 1;
329                                                 thisItem.moveHorizontally( newDepth, thisItemDepth );
330                                         }
331
332                                         // Have we reached the bottom?
333                                         if ( menuItemsCount === thisItemPosition + items.length )
334                                                 break;
335
336                                         items.detach().insertAfter( menuItems.eq( thisItemPosition + items.length ) ).updateParentMenuItemDBId();
337                                 } else {
338                                         // If next item has sub items, shift depth
339                                         if ( 0 !== nextItemChildren.length )
340                                                 thisItem.moveHorizontally( nextItemDepth, thisItemDepth );
341
342                                         // Have we reached the bottom
343                                         if ( menuItemsCount === thisItemPosition + 1 )
344                                                 break;
345                                         thisItem.detach().insertAfter( menuItems.eq( thisItemPosition + 1 ) ).updateParentMenuItemDBId();
346                                 }
347                                 break;
348                         case 'top':
349                                 // Already at top
350                                 if ( 0 === thisItemPosition )
351                                         break;
352                                 // Does this item have sub items?
353                                 if ( thisItemChildren ) {
354                                         items = thisItem.add( thisItemChildren );
355                                         // Move the entire block
356                                         items.detach().insertBefore( menuItems.eq( 0 ) ).updateParentMenuItemDBId();
357                                 } else {
358                                         thisItem.detach().insertBefore( menuItems.eq( 0 ) ).updateParentMenuItemDBId();
359                                 }
360                                 break;
361                         case 'left':
362                                 // As far left as possible
363                                 if ( 0 === thisItemDepth )
364                                         break;
365                                 thisItem.shiftHorizontally( -1 );
366                                 break;
367                         case 'right':
368                                 // Can't be sub item at top
369                                 if ( 0 === thisItemPosition )
370                                         break;
371                                 // Already sub item of prevItem
372                                 if ( thisItemData['menu-item-parent-id'] === prevItemId )
373                                         break;
374                                 thisItem.shiftHorizontally( 1 );
375                                 break;
376                         }
377                         $this.focus();
378                         api.registerChange();
379                         api.refreshKeyboardAccessibility();
380                         api.refreshAdvancedAccessibility();
381                 },
382
383                 initAccessibility : function() {
384                         var menu = $( '#menu-to-edit' );
385
386                         api.refreshKeyboardAccessibility();
387                         api.refreshAdvancedAccessibility();
388
389                         // Events
390                         menu.on( 'click', '.menus-move-up', function ( e ) {
391                                 api.moveMenuItem( $( this ).parents( 'li.menu-item' ).find( 'a.item-edit' ), 'up' );
392                                 e.preventDefault();
393                         });
394                         menu.on( 'click', '.menus-move-down', function ( e ) {
395                                 api.moveMenuItem( $( this ).parents( 'li.menu-item' ).find( 'a.item-edit' ), 'down' );
396                                 e.preventDefault();
397                         });
398                         menu.on( 'click', '.menus-move-top', function ( e ) {
399                                 api.moveMenuItem( $( this ).parents( 'li.menu-item' ).find( 'a.item-edit' ), 'top' );
400                                 e.preventDefault();
401                         });
402                         menu.on( 'click', '.menus-move-left', function ( e ) {
403                                 api.moveMenuItem( $( this ).parents( 'li.menu-item' ).find( 'a.item-edit' ), 'left' );
404                                 e.preventDefault();
405                         });
406                         menu.on( 'click', '.menus-move-right', function ( e ) {
407                                 api.moveMenuItem( $( this ).parents( 'li.menu-item' ).find( 'a.item-edit' ), 'right' );
408                                 e.preventDefault();
409                         });
410                 },
411
412                 refreshAdvancedAccessibility : function() {
413
414                         // Hide all links by default
415                         $( '.menu-item-settings .field-move a' ).css( 'display', 'none' );
416
417                         $( '.item-edit' ).each( function() {
418                                 var thisLink, thisLinkText, primaryItems, itemPosition, title,
419                                         parentItem, parentItemId, parentItemName, subItems,
420                                         $this = $(this),
421                                         menuItem = $this.closest( 'li.menu-item' ).first(),
422                                         depth = menuItem.menuItemDepth(),
423                                         isPrimaryMenuItem = ( 0 === depth ),
424                                         itemName = $this.closest( '.menu-item-handle' ).find( '.menu-item-title' ).text(),
425                                         position = parseInt( menuItem.index(), 10 ),
426                                         prevItemDepth = ( isPrimaryMenuItem ) ? depth : parseInt( depth - 1, 10 ),
427                                         prevItemNameLeft = menuItem.prevAll('.menu-item-depth-' + prevItemDepth).first().find( '.menu-item-title' ).text(),
428                                         prevItemNameRight = menuItem.prevAll('.menu-item-depth-' + depth).first().find( '.menu-item-title' ).text(),
429                                         totalMenuItems = $('#menu-to-edit li').length,
430                                         hasSameDepthSibling = menuItem.nextAll( '.menu-item-depth-' + depth ).length;
431
432                                 // Where can they move this menu item?
433                                 if ( 0 !== position ) {
434                                         thisLink = menuItem.find( '.menus-move-up' );
435                                         thisLink.prop( 'title', menus.moveUp ).css( 'display', 'inline' );
436                                 }
437
438                                 if ( 0 !== position && isPrimaryMenuItem ) {
439                                         thisLink = menuItem.find( '.menus-move-top' );
440                                         thisLink.prop( 'title', menus.moveToTop ).css( 'display', 'inline' );
441                                 }
442
443                                 if ( position + 1 !== totalMenuItems && 0 !== position ) {
444                                         thisLink = menuItem.find( '.menus-move-down' );
445                                         thisLink.prop( 'title', menus.moveDown ).css( 'display', 'inline' );
446                                 }
447
448                                 if ( 0 === position && 0 !== hasSameDepthSibling ) {
449                                         thisLink = menuItem.find( '.menus-move-down' );
450                                         thisLink.prop( 'title', menus.moveDown ).css( 'display', 'inline' );
451                                 }
452
453                                 if ( ! isPrimaryMenuItem ) {
454                                         thisLink = menuItem.find( '.menus-move-left' ),
455                                         thisLinkText = menus.outFrom.replace( '%s', prevItemNameLeft );
456                                         thisLink.prop( 'title', menus.moveOutFrom.replace( '%s', prevItemNameLeft ) ).html( thisLinkText ).css( 'display', 'inline' );
457                                 }
458
459                                 if ( 0 !== position ) {
460                                         if ( menuItem.find( '.menu-item-data-parent-id' ).val() !== menuItem.prev().find( '.menu-item-data-db-id' ).val() ) {
461                                                 thisLink = menuItem.find( '.menus-move-right' ),
462                                                 thisLinkText = menus.under.replace( '%s', prevItemNameRight );
463                                                 thisLink.prop( 'title', menus.moveUnder.replace( '%s', prevItemNameRight ) ).html( thisLinkText ).css( 'display', 'inline' );
464                                         }
465                                 }
466
467                                 if ( isPrimaryMenuItem ) {
468                                         primaryItems = $( '.menu-item-depth-0' ),
469                                         itemPosition = primaryItems.index( menuItem ) + 1,
470                                         totalMenuItems = primaryItems.length,
471
472                                         // String together help text for primary menu items
473                                         title = menus.menuFocus.replace( '%1$s', itemName ).replace( '%2$d', itemPosition ).replace( '%3$d', totalMenuItems );
474                                 } else {
475                                         parentItem = menuItem.prevAll( '.menu-item-depth-' + parseInt( depth - 1, 10 ) ).first(),
476                                         parentItemId = parentItem.find( '.menu-item-data-db-id' ).val(),
477                                         parentItemName = parentItem.find( '.menu-item-title' ).text(),
478                                         subItems = $( '.menu-item .menu-item-data-parent-id[value="' + parentItemId + '"]' ),
479                                         itemPosition = $( subItems.parents('.menu-item').get().reverse() ).index( menuItem ) + 1;
480
481                                         // String together help text for sub menu items
482                                         title = menus.subMenuFocus.replace( '%1$s', itemName ).replace( '%2$d', itemPosition ).replace( '%3$s', parentItemName );
483                                 }
484
485                                 $this.prop('title', title).html( title );
486                         });
487                 },
488
489                 refreshKeyboardAccessibility : function() {
490                         $( '.item-edit' ).off( 'focus' ).on( 'focus', function(){
491                                 $(this).off( 'keydown' ).on( 'keydown', function(e){
492
493                                         var arrows,
494                                                 $this = $( this ),
495                                                 thisItem = $this.parents( 'li.menu-item' ),
496                                                 thisItemData = thisItem.getItemData();
497
498                                         // Bail if it's not an arrow key
499                                         if ( 37 != e.which && 38 != e.which && 39 != e.which && 40 != e.which )
500                                                 return;
501
502                                         // Avoid multiple keydown events
503                                         $this.off('keydown');
504
505                                         // Bail if there is only one menu item
506                                         if ( 1 === $('#menu-to-edit li').length )
507                                                 return;
508
509                                         // If RTL, swap left/right arrows
510                                         arrows = { '38': 'up', '40': 'down', '37': 'left', '39': 'right' };
511                                         if ( $('body').hasClass('rtl') )
512                                                 arrows = { '38' : 'up', '40' : 'down', '39' : 'left', '37' : 'right' };
513
514                                         switch ( arrows[e.which] ) {
515                                         case 'up':
516                                                 api.moveMenuItem( $this, 'up' );
517                                                 break;
518                                         case 'down':
519                                                 api.moveMenuItem( $this, 'down' );
520                                                 break;
521                                         case 'left':
522                                                 api.moveMenuItem( $this, 'left' );
523                                                 break;
524                                         case 'right':
525                                                 api.moveMenuItem( $this, 'right' );
526                                                 break;
527                                         }
528                                         // Put focus back on same menu item
529                                         $( '#edit-' + thisItemData['menu-item-db-id'] ).focus();
530                                         return false;
531                                 });
532                         });
533                 },
534
535                 initPreviewing : function() {
536                         // Update the item handle title when the navigation label is changed.
537                         $( '#menu-to-edit' ).on( 'change input', '.edit-menu-item-title', function(e) {
538                                 var input = $( e.currentTarget ), title, titleEl;
539                                 title = input.val();
540                                 titleEl = input.closest( '.menu-item' ).find( '.menu-item-title' );
541                                 // Don't update to empty title.
542                                 if ( title ) {
543                                         titleEl.text( title ).removeClass( 'no-title' );
544                                 } else {
545                                         titleEl.text( navMenuL10n.untitled ).addClass( 'no-title' );
546                                 }
547                         } );
548                 },
549
550                 initToggles : function() {
551                         // init postboxes
552                         postboxes.add_postbox_toggles('nav-menus');
553
554                         // adjust columns functions for menus UI
555                         columns.useCheckboxesForHidden();
556                         columns.checked = function(field) {
557                                 $('.field-' + field).removeClass('hidden-field');
558                         };
559                         columns.unchecked = function(field) {
560                                 $('.field-' + field).addClass('hidden-field');
561                         };
562                         // hide fields
563                         api.menuList.hideAdvancedMenuItemFields();
564
565                         $('.hide-postbox-tog').click(function () {
566                                 var hidden = $( '.accordion-container li.accordion-section' ).filter(':hidden').map(function() { return this.id; }).get().join(',');
567                                 $.post(ajaxurl, {
568                                         action: 'closed-postboxes',
569                                         hidden: hidden,
570                                         closedpostboxesnonce: jQuery('#closedpostboxesnonce').val(),
571                                         page: 'nav-menus'
572                                 });
573                         });
574                 },
575
576                 initSortables : function() {
577                         var currentDepth = 0, originalDepth, minDepth, maxDepth,
578                                 prev, next, prevBottom, nextThreshold, helperHeight, transport,
579                                 menuEdge = api.menuList.offset().left,
580                                 body = $('body'), maxChildDepth,
581                                 menuMaxDepth = initialMenuMaxDepth();
582
583                         if( 0 !== $( '#menu-to-edit li' ).length )
584                                 $( '.drag-instructions' ).show();
585
586                         // Use the right edge if RTL.
587                         menuEdge += api.isRTL ? api.menuList.width() : 0;
588
589                         api.menuList.sortable({
590                                 handle: '.menu-item-handle',
591                                 placeholder: 'sortable-placeholder',
592                                 start: function(e, ui) {
593                                         var height, width, parent, children, tempHolder;
594
595                                         // handle placement for rtl orientation
596                                         if ( api.isRTL )
597                                                 ui.item[0].style.right = 'auto';
598
599                                         transport = ui.item.children('.menu-item-transport');
600
601                                         // Set depths. currentDepth must be set before children are located.
602                                         originalDepth = ui.item.menuItemDepth();
603                                         updateCurrentDepth(ui, originalDepth);
604
605                                         // Attach child elements to parent
606                                         // Skip the placeholder
607                                         parent = ( ui.item.next()[0] == ui.placeholder[0] ) ? ui.item.next() : ui.item;
608                                         children = parent.childMenuItems();
609                                         transport.append( children );
610
611                                         // Update the height of the placeholder to match the moving item.
612                                         height = transport.outerHeight();
613                                         // If there are children, account for distance between top of children and parent
614                                         height += ( height > 0 ) ? (ui.placeholder.css('margin-top').slice(0, -2) * 1) : 0;
615                                         height += ui.helper.outerHeight();
616                                         helperHeight = height;
617                                         height -= 2; // Subtract 2 for borders
618                                         ui.placeholder.height(height);
619
620                                         // Update the width of the placeholder to match the moving item.
621                                         maxChildDepth = originalDepth;
622                                         children.each(function(){
623                                                 var depth = $(this).menuItemDepth();
624                                                 maxChildDepth = (depth > maxChildDepth) ? depth : maxChildDepth;
625                                         });
626                                         width = ui.helper.find('.menu-item-handle').outerWidth(); // Get original width
627                                         width += api.depthToPx(maxChildDepth - originalDepth); // Account for children
628                                         width -= 2; // Subtract 2 for borders
629                                         ui.placeholder.width(width);
630
631                                         // Update the list of menu items.
632                                         tempHolder = ui.placeholder.next();
633                                         tempHolder.css( 'margin-top', helperHeight + 'px' ); // Set the margin to absorb the placeholder
634                                         ui.placeholder.detach(); // detach or jQuery UI will think the placeholder is a menu item
635                                         $(this).sortable( 'refresh' ); // The children aren't sortable. We should let jQ UI know.
636                                         ui.item.after( ui.placeholder ); // reattach the placeholder.
637                                         tempHolder.css('margin-top', 0); // reset the margin
638
639                                         // Now that the element is complete, we can update...
640                                         updateSharedVars(ui);
641                                 },
642                                 stop: function(e, ui) {
643                                         var children, subMenuTitle,
644                                                 depthChange = currentDepth - originalDepth;
645
646                                         // Return child elements to the list
647                                         children = transport.children().insertAfter(ui.item);
648
649                                         // Add "sub menu" description
650                                         subMenuTitle = ui.item.find( '.item-title .is-submenu' );
651                                         if ( 0 < currentDepth )
652                                                 subMenuTitle.show();
653                                         else
654                                                 subMenuTitle.hide();
655
656                                         // Update depth classes
657                                         if ( 0 !== depthChange ) {
658                                                 ui.item.updateDepthClass( currentDepth );
659                                                 children.shiftDepthClass( depthChange );
660                                                 updateMenuMaxDepth( depthChange );
661                                         }
662                                         // Register a change
663                                         api.registerChange();
664                                         // Update the item data.
665                                         ui.item.updateParentMenuItemDBId();
666
667                                         // address sortable's incorrectly-calculated top in opera
668                                         ui.item[0].style.top = 0;
669
670                                         // handle drop placement for rtl orientation
671                                         if ( api.isRTL ) {
672                                                 ui.item[0].style.left = 'auto';
673                                                 ui.item[0].style.right = 0;
674                                         }
675
676                                         api.refreshKeyboardAccessibility();
677                                         api.refreshAdvancedAccessibility();
678                                 },
679                                 change: function(e, ui) {
680                                         // Make sure the placeholder is inside the menu.
681                                         // Otherwise fix it, or we're in trouble.
682                                         if( ! ui.placeholder.parent().hasClass('menu') )
683                                                 (prev.length) ? prev.after( ui.placeholder ) : api.menuList.prepend( ui.placeholder );
684
685                                         updateSharedVars(ui);
686                                 },
687                                 sort: function(e, ui) {
688                                         var offset = ui.helper.offset(),
689                                                 edge = api.isRTL ? offset.left + ui.helper.width() : offset.left,
690                                                 depth = api.negateIfRTL * api.pxToDepth( edge - menuEdge );
691                                         // Check and correct if depth is not within range.
692                                         // Also, if the dragged element is dragged upwards over
693                                         // an item, shift the placeholder to a child position.
694                                         if ( depth > maxDepth || offset.top < prevBottom ) depth = maxDepth;
695                                         else if ( depth < minDepth ) depth = minDepth;
696
697                                         if( depth != currentDepth )
698                                                 updateCurrentDepth(ui, depth);
699
700                                         // If we overlap the next element, manually shift downwards
701                                         if( nextThreshold && offset.top + helperHeight > nextThreshold ) {
702                                                 next.after( ui.placeholder );
703                                                 updateSharedVars( ui );
704                                                 $( this ).sortable( 'refreshPositions' );
705                                         }
706                                 }
707                         });
708
709                         function updateSharedVars(ui) {
710                                 var depth;
711
712                                 prev = ui.placeholder.prev();
713                                 next = ui.placeholder.next();
714
715                                 // Make sure we don't select the moving item.
716                                 if( prev[0] == ui.item[0] ) prev = prev.prev();
717                                 if( next[0] == ui.item[0] ) next = next.next();
718
719                                 prevBottom = (prev.length) ? prev.offset().top + prev.height() : 0;
720                                 nextThreshold = (next.length) ? next.offset().top + next.height() / 3 : 0;
721                                 minDepth = (next.length) ? next.menuItemDepth() : 0;
722
723                                 if( prev.length )
724                                         maxDepth = ( (depth = prev.menuItemDepth() + 1) > api.options.globalMaxDepth ) ? api.options.globalMaxDepth : depth;
725                                 else
726                                         maxDepth = 0;
727                         }
728
729                         function updateCurrentDepth(ui, depth) {
730                                 ui.placeholder.updateDepthClass( depth, currentDepth );
731                                 currentDepth = depth;
732                         }
733
734                         function initialMenuMaxDepth() {
735                                 if( ! body[0].className ) return 0;
736                                 var match = body[0].className.match(/menu-max-depth-(\d+)/);
737                                 return match && match[1] ? parseInt( match[1], 10 ) : 0;
738                         }
739
740                         function updateMenuMaxDepth( depthChange ) {
741                                 var depth, newDepth = menuMaxDepth;
742                                 if ( depthChange === 0 ) {
743                                         return;
744                                 } else if ( depthChange > 0 ) {
745                                         depth = maxChildDepth + depthChange;
746                                         if( depth > menuMaxDepth )
747                                                 newDepth = depth;
748                                 } else if ( depthChange < 0 && maxChildDepth == menuMaxDepth ) {
749                                         while( ! $('.menu-item-depth-' + newDepth, api.menuList).length && newDepth > 0 )
750                                                 newDepth--;
751                                 }
752                                 // Update the depth class.
753                                 body.removeClass( 'menu-max-depth-' + menuMaxDepth ).addClass( 'menu-max-depth-' + newDepth );
754                                 menuMaxDepth = newDepth;
755                         }
756                 },
757
758                 initManageLocations : function () {
759                         $('#menu-locations-wrap form').submit(function(){
760                                 window.onbeforeunload = null;
761                         });
762                         $('.menu-location-menus select').on('change', function () {
763                                 var editLink = $(this).closest('tr').find('.locations-edit-menu-link');
764                                 if ($(this).find('option:selected').data('orig'))
765                                         editLink.show();
766                                 else
767                                         editLink.hide();
768                         });
769                 },
770
771                 attachMenuEditListeners : function() {
772                         var that = this;
773                         $('#update-nav-menu').bind('click', function(e) {
774                                 if ( e.target && e.target.className ) {
775                                         if ( -1 != e.target.className.indexOf('item-edit') ) {
776                                                 return that.eventOnClickEditLink(e.target);
777                                         } else if ( -1 != e.target.className.indexOf('menu-save') ) {
778                                                 return that.eventOnClickMenuSave(e.target);
779                                         } else if ( -1 != e.target.className.indexOf('menu-delete') ) {
780                                                 return that.eventOnClickMenuDelete(e.target);
781                                         } else if ( -1 != e.target.className.indexOf('item-delete') ) {
782                                                 return that.eventOnClickMenuItemDelete(e.target);
783                                         } else if ( -1 != e.target.className.indexOf('item-cancel') ) {
784                                                 return that.eventOnClickCancelLink(e.target);
785                                         }
786                                 }
787                         });
788                         $('#add-custom-links input[type="text"]').keypress(function(e){
789                                 if ( e.keyCode === 13 ) {
790                                         e.preventDefault();
791                                         $( '#submit-customlinkdiv' ).click();
792                                 }
793                         });
794                 },
795
796                 /**
797                  * An interface for managing default values for input elements
798                  * that is both JS and accessibility-friendly.
799                  *
800                  * Input elements that add the class 'input-with-default-title'
801                  * will have their values set to the provided HTML title when empty.
802                  */
803                 setupInputWithDefaultTitle : function() {
804                         var name = 'input-with-default-title';
805
806                         $('.' + name).each( function(){
807                                 var $t = $(this), title = $t.attr('title'), val = $t.val();
808                                 $t.data( name, title );
809
810                                 if( '' === val ) $t.val( title );
811                                 else if ( title == val ) return;
812                                 else $t.removeClass( name );
813                         }).focus( function(){
814                                 var $t = $(this);
815                                 if( $t.val() == $t.data(name) )
816                                         $t.val('').removeClass( name );
817                         }).blur( function(){
818                                 var $t = $(this);
819                                 if( '' === $t.val() )
820                                         $t.addClass( name ).val( $t.data(name) );
821                         });
822
823                         $( '.blank-slate .input-with-default-title' ).focus();
824                 },
825
826                 attachThemeLocationsListeners : function() {
827                         var loc = $('#nav-menu-theme-locations'), params = {};
828                         params.action = 'menu-locations-save';
829                         params['menu-settings-column-nonce'] = $('#menu-settings-column-nonce').val();
830                         loc.find('input[type="submit"]').click(function() {
831                                 loc.find('select').each(function() {
832                                         params[this.name] = $(this).val();
833                                 });
834                                 loc.find('.spinner').show();
835                                 $.post( ajaxurl, params, function() {
836                                         loc.find('.spinner').hide();
837                                 });
838                                 return false;
839                         });
840                 },
841
842                 attachQuickSearchListeners : function() {
843                         var searchTimer;
844
845                         $('.quick-search').keypress(function(e){
846                                 var t = $(this);
847
848                                 if( 13 == e.which ) {
849                                         api.updateQuickSearchResults( t );
850                                         return false;
851                                 }
852
853                                 if( searchTimer ) clearTimeout(searchTimer);
854
855                                 searchTimer = setTimeout(function(){
856                                         api.updateQuickSearchResults( t );
857                                 }, 400);
858                         }).attr('autocomplete','off');
859                 },
860
861                 updateQuickSearchResults : function(input) {
862                         var panel, params,
863                         minSearchLength = 2,
864                         q = input.val();
865
866                         if( q.length < minSearchLength ) return;
867
868                         panel = input.parents('.tabs-panel');
869                         params = {
870                                 'action': 'menu-quick-search',
871                                 'response-format': 'markup',
872                                 'menu': $('#menu').val(),
873                                 'menu-settings-column-nonce': $('#menu-settings-column-nonce').val(),
874                                 'q': q,
875                                 'type': input.attr('name')
876                         };
877
878                         $('.spinner', panel).show();
879
880                         $.post( ajaxurl, params, function(menuMarkup) {
881                                 api.processQuickSearchQueryResponse(menuMarkup, params, panel);
882                         });
883                 },
884
885                 addCustomLink : function( processMethod ) {
886                         var url = $('#custom-menu-item-url').val(),
887                                 label = $('#custom-menu-item-name').val();
888
889                         processMethod = processMethod || api.addMenuItemToBottom;
890
891                         if ( '' === url || 'http://' == url )
892                                 return false;
893
894                         // Show the ajax spinner
895                         $('.customlinkdiv .spinner').show();
896                         this.addLinkToMenu( url, label, processMethod, function() {
897                                 // Remove the ajax spinner
898                                 $('.customlinkdiv .spinner').hide();
899                                 // Set custom link form back to defaults
900                                 $('#custom-menu-item-name').val('').blur();
901                                 $('#custom-menu-item-url').val('http://');
902                         });
903                 },
904
905                 addLinkToMenu : function(url, label, processMethod, callback) {
906                         processMethod = processMethod || api.addMenuItemToBottom;
907                         callback = callback || function(){};
908
909                         api.addItemToMenu({
910                                 '-1': {
911                                         'menu-item-type': 'custom',
912                                         'menu-item-url': url,
913                                         'menu-item-title': label
914                                 }
915                         }, processMethod, callback);
916                 },
917
918                 addItemToMenu : function(menuItem, processMethod, callback) {
919                         var menu = $('#menu').val(),
920                                 nonce = $('#menu-settings-column-nonce').val(),
921                                 params;
922
923                         processMethod = processMethod || function(){};
924                         callback = callback || function(){};
925
926                         params = {
927                                 'action': 'add-menu-item',
928                                 'menu': menu,
929                                 'menu-settings-column-nonce': nonce,
930                                 'menu-item': menuItem
931                         };
932
933                         $.post( ajaxurl, params, function(menuMarkup) {
934                                 var ins = $('#menu-instructions');
935
936                                 menuMarkup = $.trim( menuMarkup ); // Trim leading whitespaces
937                                 processMethod(menuMarkup, params);
938
939                                 // Make it stand out a bit more visually, by adding a fadeIn
940                                 $( 'li.pending' ).hide().fadeIn('slow');
941                                 $( '.drag-instructions' ).show();
942                                 if( ! ins.hasClass( 'menu-instructions-inactive' ) && ins.siblings().length )
943                                         ins.addClass( 'menu-instructions-inactive' );
944
945                                 callback();
946                         });
947                 },
948
949                 /**
950                  * Process the add menu item request response into menu list item.
951                  *
952                  * @param string menuMarkup The text server response of menu item markup.
953                  * @param object req The request arguments.
954                  */
955                 addMenuItemToBottom : function( menuMarkup ) {
956                         $(menuMarkup).hideAdvancedMenuItemFields().appendTo( api.targetList );
957                         api.refreshKeyboardAccessibility();
958                         api.refreshAdvancedAccessibility();
959                 },
960
961                 addMenuItemToTop : function( menuMarkup ) {
962                         $(menuMarkup).hideAdvancedMenuItemFields().prependTo( api.targetList );
963                         api.refreshKeyboardAccessibility();
964                         api.refreshAdvancedAccessibility();
965                 },
966
967                 attachUnsavedChangesListener : function() {
968                         $('#menu-management input, #menu-management select, #menu-management, #menu-management textarea, .menu-location-menus select').change(function(){
969                                 api.registerChange();
970                         });
971
972                         if ( 0 !== $('#menu-to-edit').length || 0 !== $('.menu-location-menus select').length ) {
973                                 window.onbeforeunload = function(){
974                                         if ( api.menusChanged )
975                                                 return navMenuL10n.saveAlert;
976                                 };
977                         } else {
978                                 // Make the post boxes read-only, as they can't be used yet
979                                 $( '#menu-settings-column' ).find( 'input,select' ).end().find( 'a' ).attr( 'href', '#' ).unbind( 'click' );
980                         }
981                 },
982
983                 registerChange : function() {
984                         api.menusChanged = true;
985                 },
986
987                 attachTabsPanelListeners : function() {
988                         $('#menu-settings-column').bind('click', function(e) {
989                                 var selectAreaMatch, panelId, wrapper, items,
990                                         target = $(e.target);
991
992                                 if ( target.hasClass('nav-tab-link') ) {
993
994                                         panelId = target.data( 'type' );
995
996                                         wrapper = target.parents('.accordion-section-content').first();
997
998                                         // upon changing tabs, we want to uncheck all checkboxes
999                                         $('input', wrapper).removeAttr('checked');
1000
1001                                         $('.tabs-panel-active', wrapper).removeClass('tabs-panel-active').addClass('tabs-panel-inactive');
1002                                         $('#' + panelId, wrapper).removeClass('tabs-panel-inactive').addClass('tabs-panel-active');
1003
1004                                         $('.tabs', wrapper).removeClass('tabs');
1005                                         target.parent().addClass('tabs');
1006
1007                                         // select the search bar
1008                                         $('.quick-search', wrapper).focus();
1009
1010                                         e.preventDefault();
1011                                 } else if ( target.hasClass('select-all') ) {
1012                                         selectAreaMatch = /#(.*)$/.exec(e.target.href);
1013                                         if ( selectAreaMatch && selectAreaMatch[1] ) {
1014                                                 items = $('#' + selectAreaMatch[1] + ' .tabs-panel-active .menu-item-title input');
1015                                                 if( items.length === items.filter(':checked').length )
1016                                                         items.removeAttr('checked');
1017                                                 else
1018                                                         items.prop('checked', true);
1019                                                 return false;
1020                                         }
1021                                 } else if ( target.hasClass('submit-add-to-menu') ) {
1022                                         api.registerChange();
1023
1024                                         if ( e.target.id && 'submit-customlinkdiv' == e.target.id )
1025                                                 api.addCustomLink( api.addMenuItemToBottom );
1026                                         else if ( e.target.id && -1 != e.target.id.indexOf('submit-') )
1027                                                 $('#' + e.target.id.replace(/submit-/, '')).addSelectedToMenu( api.addMenuItemToBottom );
1028                                         return false;
1029                                 } else if ( target.hasClass('page-numbers') ) {
1030                                         $.post( ajaxurl, e.target.href.replace(/.*\?/, '').replace(/action=([^&]*)/, '') + '&action=menu-get-metabox',
1031                                                 function( resp ) {
1032                                                         if ( -1 == resp.indexOf('replace-id') )
1033                                                                 return;
1034
1035                                                         var metaBoxData = $.parseJSON(resp),
1036                                                         toReplace = document.getElementById(metaBoxData['replace-id']),
1037                                                         placeholder = document.createElement('div'),
1038                                                         wrap = document.createElement('div');
1039
1040                                                         if ( ! metaBoxData.markup || ! toReplace )
1041                                                                 return;
1042
1043                                                         wrap.innerHTML = metaBoxData.markup ? metaBoxData.markup : '';
1044
1045                                                         toReplace.parentNode.insertBefore( placeholder, toReplace );
1046                                                         placeholder.parentNode.removeChild( toReplace );
1047
1048                                                         placeholder.parentNode.insertBefore( wrap, placeholder );
1049
1050                                                         placeholder.parentNode.removeChild( placeholder );
1051
1052                                                 }
1053                                         );
1054
1055                                         return false;
1056                                 }
1057                         });
1058                 },
1059
1060                 eventOnClickEditLink : function(clickedEl) {
1061                         var settings, item,
1062                         matchedSection = /#(.*)$/.exec(clickedEl.href);
1063                         if ( matchedSection && matchedSection[1] ) {
1064                                 settings = $('#'+matchedSection[1]);
1065                                 item = settings.parent();
1066                                 if( 0 !== item.length ) {
1067                                         if( item.hasClass('menu-item-edit-inactive') ) {
1068                                                 if( ! settings.data('menu-item-data') ) {
1069                                                         settings.data( 'menu-item-data', settings.getItemData() );
1070                                                 }
1071                                                 settings.slideDown('fast');
1072                                                 item.removeClass('menu-item-edit-inactive')
1073                                                         .addClass('menu-item-edit-active');
1074                                         } else {
1075                                                 settings.slideUp('fast');
1076                                                 item.removeClass('menu-item-edit-active')
1077                                                         .addClass('menu-item-edit-inactive');
1078                                         }
1079                                         return false;
1080                                 }
1081                         }
1082                 },
1083
1084                 eventOnClickCancelLink : function(clickedEl) {
1085                         var settings = $( clickedEl ).closest( '.menu-item-settings' ),
1086                                 thisMenuItem = $( clickedEl ).closest( '.menu-item' );
1087                         thisMenuItem.removeClass('menu-item-edit-active').addClass('menu-item-edit-inactive');
1088                         settings.setItemData( settings.data('menu-item-data') ).hide();
1089                         return false;
1090                 },
1091
1092                 eventOnClickMenuSave : function() {
1093                         var locs = '',
1094                         menuName = $('#menu-name'),
1095                         menuNameVal = menuName.val();
1096                         // Cancel and warn if invalid menu name
1097                         if( !menuNameVal || menuNameVal == menuName.attr('title') || !menuNameVal.replace(/\s+/, '') ) {
1098                                 menuName.parent().addClass('form-invalid');
1099                                 return false;
1100                         }
1101                         // Copy menu theme locations
1102                         $('#nav-menu-theme-locations select').each(function() {
1103                                 locs += '<input type="hidden" name="' + this.name + '" value="' + $(this).val() + '" />';
1104                         });
1105                         $('#update-nav-menu').append( locs );
1106                         // Update menu item position data
1107                         api.menuList.find('.menu-item-data-position').val( function(index) { return index + 1; } );
1108                         window.onbeforeunload = null;
1109
1110                         return true;
1111                 },
1112
1113                 eventOnClickMenuDelete : function() {
1114                         // Delete warning AYS
1115                         if ( window.confirm( navMenuL10n.warnDeleteMenu ) ) {
1116                                 window.onbeforeunload = null;
1117                                 return true;
1118                         }
1119                         return false;
1120                 },
1121
1122                 eventOnClickMenuItemDelete : function(clickedEl) {
1123                         var itemID = parseInt(clickedEl.id.replace('delete-', ''), 10);
1124                         api.removeMenuItem( $('#menu-item-' + itemID) );
1125                         api.registerChange();
1126                         return false;
1127                 },
1128
1129                 /**
1130                  * Process the quick search response into a search result
1131                  *
1132                  * @param string resp The server response to the query.
1133                  * @param object req The request arguments.
1134                  * @param jQuery panel The tabs panel we're searching in.
1135                  */
1136                 processQuickSearchQueryResponse : function(resp, req, panel) {
1137                         var matched, newID,
1138                         takenIDs = {},
1139                         form = document.getElementById('nav-menu-meta'),
1140                         pattern = /menu-item[(\[^]\]*/,
1141                         $items = $('<div>').html(resp).find('li'),
1142                         $item;
1143
1144                         if( ! $items.length ) {
1145                                 $('.categorychecklist', panel).html( '<li><p>' + navMenuL10n.noResultsFound + '</p></li>' );
1146                                 $('.spinner', panel).hide();
1147                                 return;
1148                         }
1149
1150                         $items.each(function(){
1151                                 $item = $(this);
1152
1153                                 // make a unique DB ID number
1154                                 matched = pattern.exec($item.html());
1155
1156                                 if ( matched && matched[1] ) {
1157                                         newID = matched[1];
1158                                         while( form.elements['menu-item[' + newID + '][menu-item-type]'] || takenIDs[ newID ] ) {
1159                                                 newID--;
1160                                         }
1161
1162                                         takenIDs[newID] = true;
1163                                         if ( newID != matched[1] ) {
1164                                                 $item.html( $item.html().replace(new RegExp(
1165                                                         'menu-item\\[' + matched[1] + '\\]', 'g'),
1166                                                         'menu-item[' + newID + ']'
1167                                                 ) );
1168                                         }
1169                                 }
1170                         });
1171
1172                         $('.categorychecklist', panel).html( $items );
1173                         $('.spinner', panel).hide();
1174                 },
1175
1176                 removeMenuItem : function(el) {
1177                         var children = el.childMenuItems();
1178
1179                         el.addClass('deleting').animate({
1180                                         opacity : 0,
1181                                         height: 0
1182                                 }, 350, function() {
1183                                         var ins = $('#menu-instructions');
1184                                         el.remove();
1185                                         children.shiftDepthClass( -1 ).updateParentMenuItemDBId();
1186                                         if ( 0 === $( '#menu-to-edit li' ).length ) {
1187                                                 $( '.drag-instructions' ).hide();
1188                                                 ins.removeClass( 'menu-instructions-inactive' );
1189                                         }
1190                                 });
1191                 },
1192
1193                 depthToPx : function(depth) {
1194                         return depth * api.options.menuItemDepthPerLevel;
1195                 },
1196
1197                 pxToDepth : function(px) {
1198                         return Math.floor(px / api.options.menuItemDepthPerLevel);
1199                 }
1200
1201         };
1202
1203         $(document).ready(function(){ wpNavMenu.init(); });
1204
1205 })(jQuery);