wp-admin/js/common.js

   1 /* global setUserSetting, ajaxurl, commonL10n, alert, confirm, pagenow */
   2 var showNotice, adminMenu, columns, validateForm, screenMeta;
   3 ( function( $, window, undefined ) {
   4         var $document = $( document ),
   5                 $window = $( window ),
   6                 $body = $( document.body );
   7
   8 // Removed in 3.3.
   9 // (perhaps) needed for back-compat
  10 adminMenu = {
  11         init : function() {},
  12         fold : function() {},
  13         restoreMenuState : function() {},
  14         toggle : function() {},
  15         favorites : function() {}
  16 };
  17
  18 // show/hide/save table columns
  19 columns = {
  20         init : function() {
  21                 var that = this;
  22                 $('.hide-column-tog', '#adv-settings').click( function() {
  23                         var $t = $(this), column = $t.val();
  24                         if ( $t.prop('checked') )
  25                                 that.checked(column);
  26                         else
  27                                 that.unchecked(column);
  28
  29                         columns.saveManageColumnsState();
  30                 });
  31         },
  32
  33         saveManageColumnsState : function() {
  34                 var hidden = this.hidden();
  35                 $.post(ajaxurl, {
  36                         action: 'hidden-columns',
  37                         hidden: hidden,
  38                         screenoptionnonce: $('#screenoptionnonce').val(),
  39                         page: pagenow
  40                 });
  41         },
  42
  43         checked : function(column) {
  44                 $('.column-' + column).removeClass( 'hidden' );
  45                 this.colSpanChange(+1);
  46         },
  47
  48         unchecked : function(column) {
  49                 $('.column-' + column).addClass( 'hidden' );
  50                 this.colSpanChange(-1);
  51         },
  52
  53         hidden : function() {
  54                 return $( '.manage-column[id]' ).filter( ':hidden' ).map(function() {
  55                         return this.id;
  56                 }).get().join( ',' );
  57         },
  58
  59         useCheckboxesForHidden : function() {
  60                 this.hidden = function(){
  61                         return $('.hide-column-tog').not(':checked').map(function() {
  62                                 var id = this.id;
  63                                 return id.substring( id, id.length - 5 );
  64                         }).get().join(',');
  65                 };
  66         },
  67
  68         colSpanChange : function(diff) {
  69                 var $t = $('table').find('.colspanchange'), n;
  70                 if ( !$t.length )
  71                         return;
  72                 n = parseInt( $t.attr('colspan'), 10 ) + diff;
  73                 $t.attr('colspan', n.toString());
  74         }
  75 };
  76
  77 $document.ready(function(){columns.init();});
  78
  79 validateForm = function( form ) {
  80         return !$( form )
  81                 .find( '.form-required' )
  82                 .filter( function() { return $( 'input:visible', this ).val() === ''; } )
  83                 .addClass( 'form-invalid' )
  84                 .find( 'input:visible' )
  85                 .change( function() { $( this ).closest( '.form-invalid' ).removeClass( 'form-invalid' ); } )
  86                 .length;
  87 };
  88
  89 // stub for doing better warnings
  90 showNotice = {
  91         warn : function() {
  92                 var msg = commonL10n.warnDelete || '';
  93                 if ( confirm(msg) ) {
  94                         return true;
  95                 }
  96
  97                 return false;
  98         },
  99
 100         note : function(text) {
 101                 alert(text);
 102         }
 103 };
 104
 105 screenMeta = {
 106         element: null, // #screen-meta
 107         toggles: null, // .screen-meta-toggle
 108         page:    null, // #wpcontent
 109
 110         init: function() {
 111                 this.element = $('#screen-meta');
 112                 this.toggles = $( '#screen-meta-links' ).find( '.show-settings' );
 113                 this.page    = $('#wpcontent');
 114
 115                 this.toggles.click( this.toggleEvent );
 116         },
 117
 118         toggleEvent: function() {
 119                 var panel = $( '#' + $( this ).attr( 'aria-controls' ) );
 120
 121                 if ( !panel.length )
 122                         return;
 123
 124                 if ( panel.is(':visible') )
 125                         screenMeta.close( panel, $(this) );
 126                 else
 127                         screenMeta.open( panel, $(this) );
 128         },
 129
 130         open: function( panel, button ) {
 131
 132                 $( '#screen-meta-links' ).find( '.screen-meta-toggle' ).not( button.parent() ).css( 'visibility', 'hidden' );
 133
 134                 panel.parent().show();
 135                 panel.slideDown( 'fast', function() {
 136                         panel.focus();
 137                         button.addClass( 'screen-meta-active' ).attr( 'aria-expanded', true );
 138                 });
 139
 140                 $document.trigger( 'screen:options:open' );
 141         },
 142
 143         close: function( panel, button ) {
 144                 panel.slideUp( 'fast', function() {
 145                         button.removeClass( 'screen-meta-active' ).attr( 'aria-expanded', false );
 146                         $('.screen-meta-toggle').css('visibility', '');
 147                         panel.parent().hide();
 148                 });
 149
 150                 $document.trigger( 'screen:options:close' );
 151         }
 152 };
 153
 154 /**
 155  * Help tabs.
 156  */
 157 $('.contextual-help-tabs').delegate('a', 'click', function(e) {
 158         var link = $(this),
 159                 panel;
 160
 161         e.preventDefault();
 162
 163         // Don't do anything if the click is for the tab already showing.
 164         if ( link.is('.active a') )
 165                 return false;
 166
 167         // Links
 168         $('.contextual-help-tabs .active').removeClass('active');
 169         link.parent('li').addClass('active');
 170
 171         panel = $( link.attr('href') );
 172
 173         // Panels
 174         $('.help-tab-content').not( panel ).removeClass('active').hide();
 175         panel.addClass('active').show();
 176 });
 177
 178 $document.ready( function() {
 179         var checks, first, last, checked, sliced, mobileEvent, transitionTimeout, focusedRowActions,
 180                 lastClicked = false,
 181                 pageInput = $('input.current-page'),
 182                 currentPage = pageInput.val(),
 183                 isIOS = /iPhone|iPad|iPod/.test( navigator.userAgent ),
 184                 isAndroid = navigator.userAgent.indexOf( 'Android' ) !== -1,
 185                 isIE8 = $( document.documentElement ).hasClass( 'ie8' ),
 186                 $adminMenuWrap = $( '#adminmenuwrap' ),
 187                 $wpwrap = $( '#wpwrap' ),
 188                 $adminmenu = $( '#adminmenu' ),
 189                 $overlay = $( '#wp-responsive-overlay' ),
 190                 $toolbar = $( '#wp-toolbar' ),
 191                 $toolbarPopups = $toolbar.find( 'a[aria-haspopup="true"]' ),
 192                 $sortables = $('.meta-box-sortables'),
 193                 wpResponsiveActive = false,
 194                 $adminbar = $( '#wpadminbar' ),
 195                 lastScrollPosition = 0,
 196                 pinnedMenuTop = false,
 197                 pinnedMenuBottom = false,
 198                 menuTop = 0,
 199                 menuIsPinned = false,
 200                 height = {
 201                         window: $window.height(),
 202                         wpwrap: $wpwrap.height(),
 203                         adminbar: $adminbar.height(),
 204                         menu: $adminMenuWrap.height()
 205                 };
 206
 207
 208         // when the menu is folded, make the fly-out submenu header clickable
 209         $adminmenu.on('click.wp-submenu-head', '.wp-submenu-head', function(e){
 210                 $(e.target).parent().siblings('a').get(0).click();
 211         });
 212
 213         $('#collapse-menu').on('click.collapse-menu', function() {
 214                 var respWidth, state;
 215
 216                 // reset any compensation for submenus near the bottom of the screen
 217                 $('#adminmenu div.wp-submenu').css('margin-top', '');
 218
 219                 if ( window.innerWidth ) {
 220                         // window.innerWidth is affected by zooming on phones
 221                         respWidth = Math.max( window.innerWidth, document.documentElement.clientWidth );
 222                 } else {
 223                         // IE < 9 doesn't support @media CSS rules
 224                         respWidth = 961;
 225                 }
 226
 227                 if ( respWidth && respWidth < 960 ) {
 228                         if ( $body.hasClass('auto-fold') ) {
 229                                 $body.removeClass('auto-fold').removeClass('folded');
 230                                 setUserSetting('unfold', 1);
 231                                 setUserSetting('mfold', 'o');
 232                                 state = 'open';
 233                         } else {
 234                                 $body.addClass('auto-fold');
 235                                 setUserSetting('unfold', 0);
 236                                 state = 'folded';
 237                         }
 238                 } else {
 239                         if ( $body.hasClass('folded') ) {
 240                                 $body.removeClass('folded');
 241                                 setUserSetting('mfold', 'o');
 242                                 state = 'open';
 243                         } else {
 244                                 $body.addClass('folded');
 245                                 setUserSetting('mfold', 'f');
 246                                 state = 'folded';
 247                         }
 248                 }
 249
 250                 currentMenuItemHasPopup();
 251                 $document.trigger( 'wp-collapse-menu', { state: state } );
 252         });
 253
 254         // Handle the `aria-haspopup` attribute on the current menu item when it has a sub-menu.
 255         function currentMenuItemHasPopup() {
 256                 var respWidth,
 257                         $current = $( 'a.wp-has-current-submenu' );
 258
 259                 if ( window.innerWidth ) {
 260                         respWidth = Math.max( window.innerWidth, document.documentElement.clientWidth );
 261                 } else {
 262                         respWidth = 961;
 263                 }
 264
 265                 if ( $body.hasClass( 'folded' ) || ( $body.hasClass( 'auto-fold' ) && respWidth && respWidth <= 960 && respWidth > 782 ) ) {
 266                         // When folded or auto-folded and not responsive view, the current menu item does have a fly-out sub-menu.
 267                         $current.attr( 'aria-haspopup', 'true' );
 268                 } else {
 269                         // When expanded or in responsive view, reset aria-haspopup.
 270                         $current.attr( 'aria-haspopup', 'false' );
 271                 }
 272         }
 273
 274         $document.on( 'wp-window-resized wp-responsive-activate wp-responsive-deactivate', currentMenuItemHasPopup );
 275
 276         /**
 277          * Ensure an admin submenu is within the visual viewport.
 278          *
 279          * @since 4.1.0
 280          *
 281          * @param {jQuery} $menuItem The parent menu item containing the submenu.
 282          */
 283         function adjustSubmenu( $menuItem ) {
 284                 var bottomOffset, pageHeight, adjustment, theFold, menutop, wintop, maxtop,
 285                         $submenu = $menuItem.find( '.wp-submenu' );
 286
 287                 menutop = $menuItem.offset().top;
 288                 wintop = $window.scrollTop();
 289                 maxtop = menutop - wintop - 30; // max = make the top of the sub almost touch admin bar
 290
 291                 bottomOffset = menutop + $submenu.height() + 1; // Bottom offset of the menu
 292                 pageHeight = $wpwrap.height(); // Height of the entire page
 293                 adjustment = 60 + bottomOffset - pageHeight;
 294                 theFold = $window.height() + wintop - 50; // The fold
 295
 296                 if ( theFold < ( bottomOffset - adjustment ) ) {
 297                         adjustment = bottomOffset - theFold;
 298                 }
 299
 300                 if ( adjustment > maxtop ) {
 301                         adjustment = maxtop;
 302                 }
 303
 304                 if ( adjustment > 1 ) {
 305                         $submenu.css( 'margin-top', '-' + adjustment + 'px' );
 306                 } else {
 307                         $submenu.css( 'margin-top', '' );
 308                 }
 309         }
 310
 311         if ( 'ontouchstart' in window || /IEMobile\/[1-9]/.test(navigator.userAgent) ) { // touch screen device
 312                 // iOS Safari works with touchstart, the rest work with click
 313                 mobileEvent = isIOS ? 'touchstart' : 'click';
 314
 315                 // close any open submenus when touch/click is not on the menu
 316                 $body.on( mobileEvent+'.wp-mobile-hover', function(e) {
 317                         if ( $adminmenu.data('wp-responsive') ) {
 318                                 return;
 319                         }
 320
 321                         if ( ! $( e.target ).closest( '#adminmenu' ).length ) {
 322                                 $adminmenu.find( 'li.opensub' ).removeClass( 'opensub' );
 323                         }
 324                 });
 325
 326                 $adminmenu.find( 'a.wp-has-submenu' ).on( mobileEvent + '.wp-mobile-hover', function( event ) {
 327                         var $menuItem = $(this).parent();
 328
 329                         if ( $adminmenu.data( 'wp-responsive' ) ) {
 330                                 return;
 331                         }
 332
 333                         // Show the sub instead of following the link if:
 334                         //      - the submenu is not open
 335                         //      - the submenu is not shown inline or the menu is not folded
 336                         if ( ! $menuItem.hasClass( 'opensub' ) && ( ! $menuItem.hasClass( 'wp-menu-open' ) || $menuItem.width() < 40 ) ) {
 337                                 event.preventDefault();
 338                                 adjustSubmenu( $menuItem );
 339                                 $adminmenu.find( 'li.opensub' ).removeClass( 'opensub' );
 340                                 $menuItem.addClass('opensub');
 341                         }
 342                 });
 343         }
 344
 345         if ( ! isIOS && ! isAndroid ) {
 346                 $adminmenu.find( 'li.wp-has-submenu' ).hoverIntent({
 347                         over: function() {
 348                                 var $menuItem = $( this ),
 349                                         $submenu = $menuItem.find( '.wp-submenu' ),
 350                                         top = parseInt( $submenu.css( 'top' ), 10 );
 351
 352                                 if ( isNaN( top ) || top > -5 ) { // the submenu is visible
 353                                         return;
 354                                 }
 355
 356                                 if ( $adminmenu.data( 'wp-responsive' ) ) {
 357                                         // The menu is in responsive mode, bail
 358                                         return;
 359                                 }
 360
 361                                 adjustSubmenu( $menuItem );
 362                                 $adminmenu.find( 'li.opensub' ).removeClass( 'opensub' );
 363                                 $menuItem.addClass( 'opensub' );
 364                         },
 365                         out: function(){
 366                                 if ( $adminmenu.data( 'wp-responsive' ) ) {
 367                                         // The menu is in responsive mode, bail
 368                                         return;
 369                                 }
 370
 371                                 $( this ).removeClass( 'opensub' ).find( '.wp-submenu' ).css( 'margin-top', '' );
 372                         },
 373                         timeout: 200,
 374                         sensitivity: 7,
 375                         interval: 90
 376                 });
 377
 378                 $adminmenu.on( 'focus.adminmenu', '.wp-submenu a', function( event ) {
 379                         if ( $adminmenu.data( 'wp-responsive' ) ) {
 380                                 // The menu is in responsive mode, bail
 381                                 return;
 382                         }
 383
 384                         $( event.target ).closest( 'li.menu-top' ).addClass( 'opensub' );
 385                 }).on( 'blur.adminmenu', '.wp-submenu a', function( event ) {
 386                         if ( $adminmenu.data( 'wp-responsive' ) ) {
 387                                 return;
 388                         }
 389
 390                         $( event.target ).closest( 'li.menu-top' ).removeClass( 'opensub' );
 391                 }).find( 'li.wp-has-submenu.wp-not-current-submenu' ).on( 'focusin.adminmenu', function() {
 392                         adjustSubmenu( $( this ) );
 393                 });
 394         }
 395
 396         /*
 397          * The `.below-h2` class is here just for backward compatibility with plugins
 398          * that are (incorrectly) using it. Do not use. Use `.inline` instead. See #34570.
 399          */
 400         $( 'div.updated, div.error, div.notice' ).not( '.inline, .below-h2' ).insertAfter( $( '.wrap h1, .wrap h2' ).first() );
 401
 402         // Make notices dismissible
 403         function makeNoticesDismissible() {
 404                 $( '.notice.is-dismissible' ).each( function() {
 405                         var $el = $( this ),
 406                                 $button = $( '<button type="button" class="notice-dismiss"><span class="screen-reader-text"></span></button>' ),
 407                                 btnText = commonL10n.dismiss || '';
 408
 409                         // Ensure plain text
 410                         $button.find( '.screen-reader-text' ).text( btnText );
 411                         $button.on( 'click.wp-dismiss-notice', function( event ) {
 412                                 event.preventDefault();
 413                                 $el.fadeTo( 100, 0, function() {
 414                                         $el.slideUp( 100, function() {
 415                                                 $el.remove();
 416                                         });
 417                                 });
 418                         });
 419
 420                         $el.append( $button );
 421                 });
 422         }
 423
 424         $document.on( 'wp-updates-notice-added wp-plugin-install-error wp-plugin-update-error wp-plugin-delete-error wp-theme-install-error wp-theme-delete-error', makeNoticesDismissible );
 425
 426         // Init screen meta
 427         screenMeta.init();
 428
 429         // check all checkboxes
 430         $('tbody').children().children('.check-column').find(':checkbox').click( function(e) {
 431                 if ( 'undefined' == e.shiftKey ) { return true; }
 432                 if ( e.shiftKey ) {
 433                         if ( !lastClicked ) { return true; }
 434                         checks = $( lastClicked ).closest( 'form' ).find( ':checkbox' ).filter( ':visible:enabled' );
 435                         first = checks.index( lastClicked );
 436                         last = checks.index( this );
 437                         checked = $(this).prop('checked');
 438                         if ( 0 < first && 0 < last && first != last ) {
 439                                 sliced = ( last > first ) ? checks.slice( first, last ) : checks.slice( last, first );
 440                                 sliced.prop( 'checked', function() {
 441                                         if ( $(this).closest('tr').is(':visible') )
 442                                                 return checked;
 443
 444                                         return false;
 445                                 });
 446                         }
 447                 }
 448                 lastClicked = this;
 449
 450                 // toggle "check all" checkboxes
 451                 var unchecked = $(this).closest('tbody').find(':checkbox').filter(':visible:enabled').not(':checked');
 452                 $(this).closest('table').children('thead, tfoot').find(':checkbox').prop('checked', function() {
 453                         return ( 0 === unchecked.length );
 454                 });
 455
 456                 return true;
 457         });
 458
 459         $('thead, tfoot').find('.check-column :checkbox').on( 'click.wp-toggle-checkboxes', function( event ) {
 460                 var $this = $(this),
 461                         $table = $this.closest( 'table' ),
 462                         controlChecked = $this.prop('checked'),
 463                         toggle = event.shiftKey || $this.data('wp-toggle');
 464
 465                 $table.children( 'tbody' ).filter(':visible')
 466                         .children().children('.check-column').find(':checkbox')
 467                         .prop('checked', function() {
 468                                 if ( $(this).is(':hidden,:disabled') ) {
 469                                         return false;
 470                                 }
 471
 472                                 if ( toggle ) {
 473                                         return ! $(this).prop( 'checked' );
 474                                 } else if ( controlChecked ) {
 475                                         return true;
 476                                 }
 477
 478                                 return false;
 479                         });
 480
 481                 $table.children('thead,  tfoot').filter(':visible')
 482                         .children().children('.check-column').find(':checkbox')
 483                         .prop('checked', function() {
 484                                 if ( toggle ) {
 485                                         return false;
 486                                 } else if ( controlChecked ) {
 487                                         return true;
 488                                 }
 489
 490                                 return false;
 491                         });
 492         });
 493
 494         // Show row actions on keyboard focus of its parent container element or any other elements contained within
 495         $( '#wpbody-content' ).on({
 496                 focusin: function() {
 497                         clearTimeout( transitionTimeout );
 498                         focusedRowActions = $( this ).find( '.row-actions' );
 499                         // transitionTimeout is necessary for Firefox, but Chrome won't remove the CSS class without a little help.
 500                         $( '.row-actions' ).not( this ).removeClass( 'visible' );
 501                         focusedRowActions.addClass( 'visible' );
 502                 },
 503                 focusout: function() {
 504                         // Tabbing between post title and .row-actions links needs a brief pause, otherwise
 505                         // the .row-actions div gets hidden in transit in some browsers (ahem, Firefox).
 506                         transitionTimeout = setTimeout( function() {
 507                                 focusedRowActions.removeClass( 'visible' );
 508                         }, 30 );
 509                 }
 510         }, '.has-row-actions' );
 511
 512         // Toggle list table rows on small screens
 513         $( 'tbody' ).on( 'click', '.toggle-row', function() {
 514                 $( this ).closest( 'tr' ).toggleClass( 'is-expanded' );
 515         });
 516
 517         $('#default-password-nag-no').click( function() {
 518                 setUserSetting('default_password_nag', 'hide');
 519                 $('div.default-password-nag').hide();
 520                 return false;
 521         });
 522
 523         // tab in textareas
 524         $('#newcontent').bind('keydown.wpevent_InsertTab', function(e) {
 525                 var el = e.target, selStart, selEnd, val, scroll, sel;
 526
 527                 if ( e.keyCode == 27 ) { // escape key
 528                         // when pressing Escape: Opera 12 and 27 blur form fields, IE 8 clears them
 529                         e.preventDefault();
 530                         $(el).data('tab-out', true);
 531                         return;
 532                 }
 533
 534                 if ( e.keyCode != 9 || e.ctrlKey || e.altKey || e.shiftKey ) // tab key
 535                         return;
 536
 537                 if ( $(el).data('tab-out') ) {
 538                         $(el).data('tab-out', false);
 539                         return;
 540                 }
 541
 542                 selStart = el.selectionStart;
 543                 selEnd = el.selectionEnd;
 544                 val = el.value;
 545
 546                 if ( document.selection ) {
 547                         el.focus();
 548                         sel = document.selection.createRange();
 549                         sel.text = '\t';
 550                 } else if ( selStart >= 0 ) {
 551                         scroll = this.scrollTop;
 552                         el.value = val.substring(0, selStart).concat('\t', val.substring(selEnd) );
 553                         el.selectionStart = el.selectionEnd = selStart + 1;
 554                         this.scrollTop = scroll;
 555                 }
 556
 557                 if ( e.stopPropagation )
 558                         e.stopPropagation();
 559                 if ( e.preventDefault )
 560                         e.preventDefault();
 561         });
 562
 563         if ( pageInput.length ) {
 564                 pageInput.closest('form').submit( function() {
 565
 566                         // Reset paging var for new filters/searches but not for bulk actions. See #17685.
 567                         if ( $('select[name="action"]').val() == -1 && $('select[name="action2"]').val() == -1 && pageInput.val() == currentPage )
 568                                 pageInput.val('1');
 569                 });
 570         }
 571
 572         $('.search-box input[type="search"], .search-box input[type="submit"]').mousedown(function () {
 573                 $('select[name^="action"]').val('-1');
 574         });
 575
 576         // Scroll into view when focused
 577         $('#contextual-help-link, #show-settings-link').on( 'focus.scroll-into-view', function(e){
 578                 if ( e.target.scrollIntoView )
 579                         e.target.scrollIntoView(false);
 580         });
 581
 582         // Disable upload buttons until files are selected
 583         (function(){
 584                 var button, input, form = $('form.wp-upload-form');
 585                 if ( ! form.length )
 586                         return;
 587                 button = form.find('input[type="submit"]');
 588                 input = form.find('input[type="file"]');
 589
 590                 function toggleUploadButton() {
 591                         button.prop('disabled', '' === input.map( function() {
 592                                 return $(this).val();
 593                         }).get().join(''));
 594                 }
 595                 toggleUploadButton();
 596                 input.on('change', toggleUploadButton);
 597         })();
 598
 599         function pinMenu( event ) {
 600                 var windowPos = $window.scrollTop(),
 601                         resizing = ! event || event.type !== 'scroll';
 602
 603                 if ( isIOS || isIE8 || $adminmenu.data( 'wp-responsive' ) ) {
 604                         return;
 605                 }
 606
 607                 if ( height.menu + height.adminbar < height.window ||
 608                         height.menu + height.adminbar + 20 > height.wpwrap ) {
 609                         unpinMenu();
 610                         return;
 611                 }
 612
 613                 menuIsPinned = true;
 614
 615                 if ( height.menu + height.adminbar > height.window ) {
 616                         // Check for overscrolling
 617                         if ( windowPos < 0 ) {
 618                                 if ( ! pinnedMenuTop ) {
 619                                         pinnedMenuTop = true;
 620                                         pinnedMenuBottom = false;
 621
 622                                         $adminMenuWrap.css({
 623                                                 position: 'fixed',
 624                                                 top: '',
 625                                                 bottom: ''
 626                                         });
 627                                 }
 628
 629                                 return;
 630                         } else if ( windowPos + height.window > $document.height() - 1 ) {
 631                                 if ( ! pinnedMenuBottom ) {
 632                                         pinnedMenuBottom = true;
 633                                         pinnedMenuTop = false;
 634
 635                                         $adminMenuWrap.css({
 636                                                 position: 'fixed',
 637                                                 top: '',
 638                                                 bottom: 0
 639                                         });
 640                                 }
 641
 642                                 return;
 643                         }
 644
 645                         if ( windowPos > lastScrollPosition ) {
 646                                 // Scrolling down
 647                                 if ( pinnedMenuTop ) {
 648                                         // let it scroll
 649                                         pinnedMenuTop = false;
 650                                         menuTop = $adminMenuWrap.offset().top - height.adminbar - ( windowPos - lastScrollPosition );
 651
 652                                         if ( menuTop + height.menu + height.adminbar < windowPos + height.window ) {
 653                                                 menuTop = windowPos + height.window - height.menu - height.adminbar;
 654                                         }
 655
 656                                         $adminMenuWrap.css({
 657                                                 position: 'absolute',
 658                                                 top: menuTop,
 659                                                 bottom: ''
 660                                         });
 661                                 } else if ( ! pinnedMenuBottom && $adminMenuWrap.offset().top + height.menu < windowPos + height.window ) {
 662                                         // pin the bottom
 663                                         pinnedMenuBottom = true;
 664
 665                                         $adminMenuWrap.css({
 666                                                 position: 'fixed',
 667                                                 top: '',
 668                                                 bottom: 0
 669                                         });
 670                                 }
 671                         } else if ( windowPos < lastScrollPosition ) {
 672                                 // Scrolling up
 673                                 if ( pinnedMenuBottom ) {
 674                                         // let it scroll
 675                                         pinnedMenuBottom = false;
 676                                         menuTop = $adminMenuWrap.offset().top - height.adminbar + ( lastScrollPosition - windowPos );
 677
 678                                         if ( menuTop + height.menu > windowPos + height.window ) {
 679                                                 menuTop = windowPos;
 680                                         }
 681
 682                                         $adminMenuWrap.css({
 683                                                 position: 'absolute',
 684                                                 top: menuTop,
 685                                                 bottom: ''
 686                                         });
 687                                 } else if ( ! pinnedMenuTop && $adminMenuWrap.offset().top >= windowPos + height.adminbar ) {
 688                                         // pin the top
 689                                         pinnedMenuTop = true;
 690
 691                                         $adminMenuWrap.css({
 692                                                 position: 'fixed',
 693                                                 top: '',
 694                                                 bottom: ''
 695                                         });
 696                                 }
 697                         } else if ( resizing ) {
 698                                 // Resizing
 699                                 pinnedMenuTop = pinnedMenuBottom = false;
 700                                 menuTop = windowPos + height.window - height.menu - height.adminbar - 1;
 701
 702                                 if ( menuTop > 0 ) {
 703                                         $adminMenuWrap.css({
 704                                                 position: 'absolute',
 705                                                 top: menuTop,
 706                                                 bottom: ''
 707                                         });
 708                                 } else {
 709                                         unpinMenu();
 710                                 }
 711                         }
 712                 }
 713
 714                 lastScrollPosition = windowPos;
 715         }
 716
 717         function resetHeights() {
 718                 height = {
 719                         window: $window.height(),
 720                         wpwrap: $wpwrap.height(),
 721                         adminbar: $adminbar.height(),
 722                         menu: $adminMenuWrap.height()
 723                 };
 724         }
 725
 726         function unpinMenu() {
 727                 if ( isIOS || ! menuIsPinned ) {
 728                         return;
 729                 }
 730
 731                 pinnedMenuTop = pinnedMenuBottom = menuIsPinned = false;
 732                 $adminMenuWrap.css({
 733                         position: '',
 734                         top: '',
 735                         bottom: ''
 736                 });
 737         }
 738
 739         function setPinMenu() {
 740                 resetHeights();
 741
 742                 if ( $adminmenu.data('wp-responsive') ) {
 743                         $body.removeClass( 'sticky-menu' );
 744                         unpinMenu();
 745                 } else if ( height.menu + height.adminbar > height.window ) {
 746                         pinMenu();
 747                         $body.removeClass( 'sticky-menu' );
 748                 } else {
 749                         $body.addClass( 'sticky-menu' );
 750                         unpinMenu();
 751                 }
 752         }
 753
 754         if ( ! isIOS ) {
 755                 $window.on( 'scroll.pin-menu', pinMenu );
 756                 $document.on( 'tinymce-editor-init.pin-menu', function( event, editor ) {
 757                         editor.on( 'wp-autoresize', resetHeights );
 758                 });
 759         }
 760
 761         window.wpResponsive = {
 762                 init: function() {
 763                         var self = this;
 764
 765                         // Modify functionality based on custom activate/deactivate event
 766                         $document.on( 'wp-responsive-activate.wp-responsive', function() {
 767                                 self.activate();
 768                         }).on( 'wp-responsive-deactivate.wp-responsive', function() {
 769                                 self.deactivate();
 770                         });
 771
 772                         $( '#wp-admin-bar-menu-toggle a' ).attr( 'aria-expanded', 'false' );
 773
 774                         // Toggle sidebar when toggle is clicked
 775                         $( '#wp-admin-bar-menu-toggle' ).on( 'click.wp-responsive', function( event ) {
 776                                 event.preventDefault();
 777
 778                                 // close any open toolbar submenus
 779                                 $adminbar.find( '.hover' ).removeClass( 'hover' );
 780
 781                                 $wpwrap.toggleClass( 'wp-responsive-open' );
 782                                 if ( $wpwrap.hasClass( 'wp-responsive-open' ) ) {
 783                                         $(this).find('a').attr( 'aria-expanded', 'true' );
 784                                         $( '#adminmenu a:first' ).focus();
 785                                 } else {
 786                                         $(this).find('a').attr( 'aria-expanded', 'false' );
 787                                 }
 788                         } );
 789
 790                         // Add menu events
 791                         $adminmenu.on( 'click.wp-responsive', 'li.wp-has-submenu > a', function( event ) {
 792                                 if ( ! $adminmenu.data('wp-responsive') ) {
 793                                         return;
 794                                 }
 795
 796                                 $( this ).parent( 'li' ).toggleClass( 'selected' );
 797                                 event.preventDefault();
 798                         });
 799
 800                         self.trigger();
 801                         $document.on( 'wp-window-resized.wp-responsive', $.proxy( this.trigger, this ) );
 802
 803                         // This needs to run later as UI Sortable may be initialized later on $(document).ready()
 804                         $window.on( 'load.wp-responsive', function() {
 805                                 var width = navigator.userAgent.indexOf('AppleWebKit/') > -1 ? $window.width() : window.innerWidth;
 806
 807                                 if ( width <= 782 ) {
 808                                         self.disableSortables();
 809                                 }
 810                         });
 811                 },
 812
 813                 activate: function() {
 814                         setPinMenu();
 815
 816                         if ( ! $body.hasClass( 'auto-fold' ) ) {
 817                                 $body.addClass( 'auto-fold' );
 818                         }
 819
 820                         $adminmenu.data( 'wp-responsive', 1 );
 821                         this.disableSortables();
 822                 },
 823
 824                 deactivate: function() {
 825                         setPinMenu();
 826                         $adminmenu.removeData('wp-responsive');
 827                         this.enableSortables();
 828                 },
 829
 830                 trigger: function() {
 831                         var width;
 832
 833                         if ( window.innerWidth ) {
 834                                 // window.innerWidth is affected by zooming on phones
 835                                 width = Math.max( window.innerWidth, document.documentElement.clientWidth );
 836                         } else {
 837                                 // Exclude IE < 9, it doesn't support @media CSS rules
 838                                 return;
 839                         }
 840
 841                         if ( width <= 782 ) {
 842                                 if ( ! wpResponsiveActive ) {
 843                                         $document.trigger( 'wp-responsive-activate' );
 844                                         wpResponsiveActive = true;
 845                                 }
 846                         } else {
 847                                 if ( wpResponsiveActive ) {
 848                                         $document.trigger( 'wp-responsive-deactivate' );
 849                                         wpResponsiveActive = false;
 850                                 }
 851                         }
 852
 853                         if ( width <= 480 ) {
 854                                 this.enableOverlay();
 855                         } else {
 856                                 this.disableOverlay();
 857                         }
 858                 },
 859
 860                 enableOverlay: function() {
 861                         if ( $overlay.length === 0 ) {
 862                                 $overlay = $( '<div id="wp-responsive-overlay"></div>' )
 863                                         .insertAfter( '#wpcontent' )
 864                                         .hide()
 865                                         .on( 'click.wp-responsive', function() {
 866                                                 $toolbar.find( '.menupop.hover' ).removeClass( 'hover' );
 867                                                 $( this ).hide();
 868                                         });
 869                         }
 870
 871                         $toolbarPopups.on( 'click.wp-responsive', function() {
 872                                 $overlay.show();
 873                         });
 874                 },
 875
 876                 disableOverlay: function() {
 877                         $toolbarPopups.off( 'click.wp-responsive' );
 878                         $overlay.hide();
 879                 },
 880
 881                 disableSortables: function() {
 882                         if ( $sortables.length ) {
 883                                 try {
 884                                         $sortables.sortable('disable');
 885                                 } catch(e) {}
 886                         }
 887                 },
 888
 889                 enableSortables: function() {
 890                         if ( $sortables.length ) {
 891                                 try {
 892                                         $sortables.sortable('enable');
 893                                 } catch(e) {}
 894                         }
 895                 }
 896         };
 897
 898         // Add an ARIA role `button` to elements that behave like UI controls when JavaScript is on.
 899         function aria_button_if_js() {
 900                 $( '.aria-button-if-js' ).attr( 'role', 'button' );
 901         }
 902
 903         $( document ).ajaxComplete( function() {
 904                 aria_button_if_js();
 905         });
 906
 907         window.wpResponsive.init();
 908         setPinMenu();
 909         currentMenuItemHasPopup();
 910         makeNoticesDismissible();
 911         aria_button_if_js();
 912
 913         $document.on( 'wp-pin-menu wp-window-resized.pin-menu postboxes-columnchange.pin-menu postbox-toggled.pin-menu wp-collapse-menu.pin-menu wp-scroll-start.pin-menu', setPinMenu );
 914
 915         // Set initial focus on a specific element.
 916         $( '.wp-initial-focus' ).focus();
 917 });
 918
 919 // Fire a custom jQuery event at the end of window resize
 920 ( function() {
 921         var timeout;
 922
 923         function triggerEvent() {
 924                 $document.trigger( 'wp-window-resized' );
 925         }
 926
 927         function fireOnce() {
 928                 window.clearTimeout( timeout );
 929                 timeout = window.setTimeout( triggerEvent, 200 );
 930         }
 931
 932         $window.on( 'resize.wp-fire-once', fireOnce );
 933 }());
 934
 935 // Make Windows 8 devices play along nicely.
 936 (function(){
 937         if ( '-ms-user-select' in document.documentElement.style && navigator.userAgent.match(/IEMobile\/10\.0/) ) {
 938                 var msViewportStyle = document.createElement( 'style' );
 939                 msViewportStyle.appendChild(
 940                         document.createTextNode( '@-ms-viewport{width:auto!important}' )
 941                 );
 942                 document.getElementsByTagName( 'head' )[0].appendChild( msViewportStyle );
 943         }
 944 })();
 945
 946 }( jQuery, window ));