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Edit File : common.js \| Size : 41.77 KB
/** * @output site-admin/js/common.js / / global setUserSetting, ajaxurl, commonL10n, alert, confirm, pagenow / / global columns, screenMeta / /* * Adds common WordPress functionality to the window. * * @param {jQuery} $ jQuery object. * @param {Object} window The window object. * @param {mixed} undefined Unused. / ( function( $, window, undefined ) { var $document = $( document ), $window = $( window ), $body = $( document.body ); /* * Removed in 3.3.0, needed for back-compatibility. * * @since 2.7.0 * @deprecated 3.3.0 / window.adminMenu = { init : function() {}, fold : function() {}, restoreMenuState : function() {}, toggle : function() {}, favorites : function() {} }; // Show/hide/save table columns. window.columns = { /* * Initializes the column toggles in the screen options. * * Binds an onClick event to the checkboxes to show or hide the table columns * based on their toggled state. And persists the toggled state. * * @since 2.7.0 * * @returns {void} / init : function() { var that = this; $('.hide-column-tog', '#adv-settings').click( function() { var $t = $(this), column = $t.val(); if ( $t.prop('checked') ) that.checked(column); else that.unchecked(column); columns.saveManageColumnsState(); }); }, /* * Saves the toggled state for the columns. * * Saves whether the columns should be shown or hidden on a page. * * @since 3.0.0 * * @returns {void} / saveManageColumnsState : function() { var hidden = this.hidden(); $.post(ajaxurl, { action: 'hidden-columns', hidden: hidden, screenoptionnonce: $('#screenoptionnonce').val(), page: pagenow }); }, /* * Makes a column visible and adjusts the column span for the table. * * @since 3.0.0 * @param {string} column The column name. * * @returns {void} / checked : function(column) { $('.column-' + column).removeClass( 'hidden' ); this.colSpanChange(+1); }, /* * Hides a column and adjusts the column span for the table. * * @since 3.0.0 * @param {string} column The column name. * * @returns {void} / unchecked : function(column) { $('.column-' + column).addClass( 'hidden' ); this.colSpanChange(-1); }, /* * Gets all hidden columns. * * @since 3.0.0 * * @returns {string} The hidden column names separated by a comma. / hidden : function() { return $( '.manage-column[id]' ).filter( '.hidden' ).map(function() { return this.id; }).get().join( ',' ); }, /* * Gets the checked column toggles from the screen options. * * @since 3.0.0 * * @returns {string} String containing the checked column names. / useCheckboxesForHidden : function() { this.hidden = function(){ return $('.hide-column-tog').not(':checked').map(function() { var id = this.id; return id.substring( id, id.length - 5 ); }).get().join(','); }; }, /* * Adjusts the column span for the table. * * @since 3.1.0 * * @param {int} diff The modifier for the column span. / colSpanChange : function(diff) { var $t = $('table').find('.colspanchange'), n; if ( !$t.length ) return; n = parseInt( $t.attr('colspan'), 10 ) + diff; $t.attr('colspan', n.toString()); } }; $document.ready(function(){columns.init();}); /* * Validates that the required form fields are not empty. * * @since 2.9.0 * * @param {jQuery} form The form to validate. * * @returns {boolean} Returns true if all required fields are not an empty string. / window.validateForm = function( form ) { return !$( form ) .find( '.form-required' ) .filter( function() { return $( ':input:visible', this ).val() === ''; } ) .addClass( 'form-invalid' ) .find( ':input:visible' ) .change( function() { $( this ).closest( '.form-invalid' ).removeClass( 'form-invalid' ); } ) .length; }; // stub for doing better warnings /* * Shows message pop-up notice or confirmation message. * * @since 2.7.0 * * @type {{warn: showNotice.warn, note: showNotice.note}} * * @returns {void} / window.showNotice = { /* * Shows a delete confirmation pop-up message. * * @since 2.7.0 * * @returns {boolean} Returns true if the message is confirmed. / warn : function() { var msg = commonL10n.warnDelete \|\| ''; if ( confirm(msg) ) { return true; } return false; }, /* * Shows an alert message. * * @since 2.7.0 * * @param text The text to display in the message. / note : function(text) { alert(text); } }; /* * Represents the functions for the meta screen options panel. * * @since 3.2.0 * * @type {{element: null, toggles: null, page: null, init: screenMeta.init, * toggleEvent: screenMeta.toggleEvent, open: screenMeta.open, * close: screenMeta.close}} * * @returns {void} / window.screenMeta = { element: null, // #screen-meta toggles: null, // .screen-meta-toggle page: null, // #wpcontent /* * Initializes the screen meta options panel. * * @since 3.2.0 * * @returns {void} / init: function() { this.element = $('#screen-meta'); this.toggles = $( '#screen-meta-links' ).find( '.show-settings' ); this.page = $('#wpcontent'); this.toggles.click( this.toggleEvent ); }, /* * Toggles the screen meta options panel. * * @since 3.2.0 * * @returns {void} / toggleEvent: function() { var panel = $( '#' + $( this ).attr( 'aria-controls' ) ); if ( !panel.length ) return; if ( panel.is(':visible') ) screenMeta.close( panel, $(this) ); else screenMeta.open( panel, $(this) ); }, /* * Opens the screen meta options panel. * * @since 3.2.0 * * @param {jQuery} panel The screen meta options panel div. * @param {jQuery} button The toggle button. * * @returns {void} / open: function( panel, button ) { $( '#screen-meta-links' ).find( '.screen-meta-toggle' ).not( button.parent() ).css( 'visibility', 'hidden' ); panel.parent().show(); /* * Sets the focus to the meta options panel and adds the necessary CSS classes. * * @since 3.2.0 * * @returns {void} / panel.slideDown( 'fast', function() { panel.focus(); button.addClass( 'screen-meta-active' ).attr( 'aria-expanded', true ); }); $document.trigger( 'screen:options:open' ); }, /* * Closes the screen meta options panel. * * @since 3.2.0 * * @param {jQuery} panel The screen meta options panel div. * @param {jQuery} button The toggle button. * * @returns {void} / close: function( panel, button ) { /* * Hides the screen meta options panel. * * @since 3.2.0 * * @returns {void} / panel.slideUp( 'fast', function() { button.removeClass( 'screen-meta-active' ).attr( 'aria-expanded', false ); $('.screen-meta-toggle').css('visibility', ''); panel.parent().hide(); }); $document.trigger( 'screen:options:close' ); } }; /* * Initializes the help tabs in the help panel. * * @param {Event} e The event object. * * @returns {void} / $('.contextual-help-tabs').delegate('a', 'click', function(e) { var link = $(this), panel; e.preventDefault(); // Don't do anything if the click is for the tab already showing. if ( link.is('.active a') ) return false; // Links $('.contextual-help-tabs .active').removeClass('active'); link.parent('li').addClass('active'); panel = $( link.attr('href') ); // Panels $('.help-tab-content').not( panel ).removeClass('active').hide(); panel.addClass('active').show(); }); /* * Update custom permalink structure via buttons. / var permalinkStructureFocused = false, $permalinkStructure = $( '#permalink_structure' ), $permalinkStructureInputs = $( '.permalink-structure input:radio' ), $permalinkCustomSelection = $( '#custom_selection' ), $availableStructureTags = $( '.form-table.permalink-structure .available-structure-tags button' ); // Change permalink structure input when selecting one of the common structures. $permalinkStructureInputs.on( 'change', function() { if ( 'custom' === this.value ) { return; } $permalinkStructure.val( this.value ); // Update button states after selection. $availableStructureTags.each( function() { changeStructureTagButtonState( $( this ) ); } ); } ); $permalinkStructure.on( 'click input', function() { $permalinkCustomSelection.prop( 'checked', true ); } ); // Check if the permalink structure input field has had focus at least once. $permalinkStructure.on( 'focus', function( event ) { permalinkStructureFocused = true; $( this ).off( event ); } ); /* * Enables or disables a structure tag button depending on its usage. * * If the structure is already used in the custom permalink structure, * it will be disabled. * * @param {object} button Button jQuery object. / function changeStructureTagButtonState( button ) { if ( -1 !== $permalinkStructure.val().indexOf( button.text().trim() ) ) { button.attr( 'data-label', button.attr( 'aria-label' ) ); button.attr( 'aria-label', button.attr( 'data-used' ) ); button.attr( 'aria-pressed', true ); button.addClass( 'active' ); } else if ( button.attr( 'data-label' ) ) { button.attr( 'aria-label', button.attr( 'data-label' ) ); button.attr( 'aria-pressed', false ); button.removeClass( 'active' ); } } // Check initial button state. $availableStructureTags.each( function() { changeStructureTagButtonState( $( this ) ); } ); // Observe permalink structure field and disable buttons of tags that are already present. $permalinkStructure.on( 'change', function() { $availableStructureTags.each( function() { changeStructureTagButtonState( $( this ) ); } ); } ); $availableStructureTags.on( 'click', function() { var permalinkStructureValue = $permalinkStructure.val(), selectionStart = $permalinkStructure[ 0 ].selectionStart, selectionEnd = $permalinkStructure[ 0 ].selectionEnd, textToAppend = $( this ).text().trim(), textToAnnounce = $( this ).attr( 'data-added' ), newSelectionStart; // Remove structure tag if already part of the structure. if ( -1 !== permalinkStructureValue.indexOf( textToAppend ) ) { permalinkStructureValue = permalinkStructureValue.replace( textToAppend + '/', '' ); $permalinkStructure.val( '/' === permalinkStructureValue ? '' : permalinkStructureValue ); // Announce change to screen readers. $( '#custom_selection_updated' ).text( textToAnnounce ); // Disable button. changeStructureTagButtonState( $( this ) ); return; } // Input field never had focus, move selection to end of input. if ( ! permalinkStructureFocused && 0 === selectionStart && 0 === selectionEnd ) { selectionStart = selectionEnd = permalinkStructureValue.length; } $permalinkCustomSelection.prop( 'checked', true ); // Prepend and append slashes if necessary. if ( '/' !== permalinkStructureValue.substr( 0, selectionStart ).substr( -1 ) ) { textToAppend = '/' + textToAppend; } if ( '/' !== permalinkStructureValue.substr( selectionEnd, 1 ) ) { textToAppend = textToAppend + '/'; } // Insert structure tag at the specified position. $permalinkStructure.val( permalinkStructureValue.substr( 0, selectionStart ) + textToAppend + permalinkStructureValue.substr( selectionEnd ) ); // Announce change to screen readers. $( '#custom_selection_updated' ).text( textToAnnounce ); // Disable button. changeStructureTagButtonState( $( this ) ); // If input had focus give it back with cursor right after appended text. if ( permalinkStructureFocused && $permalinkStructure[0].setSelectionRange ) { newSelectionStart = ( permalinkStructureValue.substr( 0, selectionStart ) + textToAppend ).length; $permalinkStructure[0].setSelectionRange( newSelectionStart, newSelectionStart ); $permalinkStructure.focus(); } } ); $document.ready( function() { var checks, first, last, checked, sliced, mobileEvent, transitionTimeout, focusedRowActions, lastClicked = false, pageInput = $('input.current-page'), currentPage = pageInput.val(), isIOS = /iPhone\|iPad\|iPod/.test( navigator.userAgent ), isAndroid = navigator.userAgent.indexOf( 'Android' ) !== -1, isIE8 = $( document.documentElement ).hasClass( 'ie8' ), $adminMenuWrap = $( '#adminmenuwrap' ), $wpwrap = $( '#wpwrap' ), $adminmenu = $( '#adminmenu' ), $overlay = $( '#wp-responsive-overlay' ), $toolbar = $( '#wp-toolbar' ), $toolbarPopups = $toolbar.find( 'a[aria-haspopup="true"]' ), $sortables = $('.meta-box-sortables'), wpResponsiveActive = false, $adminbar = $( '#wpadminbar' ), lastScrollPosition = 0, pinnedMenuTop = false, pinnedMenuBottom = false, menuTop = 0, menuState, menuIsPinned = false, height = { window: $window.height(), wpwrap: $wpwrap.height(), adminbar: $adminbar.height(), menu: $adminMenuWrap.height() }, $headerEnd = $( '.wp-header-end' ); /* * Makes the fly-out submenu header clickable, when the menu is folded. * * @param {Event} e The event object. * * @returns {void} / $adminmenu.on('click.wp-submenu-head', '.wp-submenu-head', function(e){ $(e.target).parent().siblings('a').get(0).click(); }); /* * Collapses the admin menu. * * @returns {void} / $( '#collapse-button' ).on( 'click.collapse-menu', function() { var viewportWidth = getViewportWidth() \|\| 961; // reset any compensation for submenus near the bottom of the screen $('#adminmenu div.wp-submenu').css('margin-top', ''); if ( viewportWidth < 960 ) { if ( $body.hasClass('auto-fold') ) { $body.removeClass('auto-fold').removeClass('folded'); setUserSetting('unfold', 1); setUserSetting('mfold', 'o'); menuState = 'open'; } else { $body.addClass('auto-fold'); setUserSetting('unfold', 0); menuState = 'folded'; } } else { if ( $body.hasClass('folded') ) { $body.removeClass('folded'); setUserSetting('mfold', 'o'); menuState = 'open'; } else { $body.addClass('folded'); setUserSetting('mfold', 'f'); menuState = 'folded'; } } $document.trigger( 'wp-collapse-menu', { state: menuState } ); }); /* * Handles the `aria-haspopup` attribute on the current menu item when it has a submenu. * * @since 4.4.0 * * @returns {void} / function currentMenuItemHasPopup() { var $current = $( 'a.wp-has-current-submenu' ); if ( 'folded' === menuState ) { // When folded or auto-folded and not responsive view, the current menu item does have a fly-out sub-menu. $current.attr( 'aria-haspopup', 'true' ); } else { // When expanded or in responsive view, reset aria-haspopup. $current.attr( 'aria-haspopup', 'false' ); } } $document.on( 'wp-menu-state-set wp-collapse-menu wp-responsive-activate wp-responsive-deactivate', currentMenuItemHasPopup ); /* * Ensures an admin submenu is within the visual viewport. * * @since 4.1.0 * * @param {jQuery} $menuItem The parent menu item containing the submenu. * * @returns {void} / function adjustSubmenu( $menuItem ) { var bottomOffset, pageHeight, adjustment, theFold, menutop, wintop, maxtop, $submenu = $menuItem.find( '.wp-submenu' ); menutop = $menuItem.offset().top; wintop = $window.scrollTop(); maxtop = menutop - wintop - 30; // max = make the top of the sub almost touch admin bar bottomOffset = menutop + $submenu.height() + 1; // Bottom offset of the menu pageHeight = $wpwrap.height(); // Height of the entire page adjustment = 60 + bottomOffset - pageHeight; theFold = $window.height() + wintop - 50; // The fold if ( theFold < ( bottomOffset - adjustment ) ) { adjustment = bottomOffset - theFold; } if ( adjustment > maxtop ) { adjustment = maxtop; } if ( adjustment > 1 ) { $submenu.css( 'margin-top', '-' + adjustment + 'px' ); } else { $submenu.css( 'margin-top', '' ); } } if ( 'ontouchstart' in window \|\| /IEMobile\/[1-9]/.test(navigator.userAgent) ) { // touch screen device // iOS Safari works with touchstart, the rest work with click mobileEvent = isIOS ? 'touchstart' : 'click'; /* * Closes any open submenus when touch/click is not on the menu. * * @param {Event} e The event object. * * @returns {void} / $body.on( mobileEvent+'.wp-mobile-hover', function(e) { if ( $adminmenu.data('wp-responsive') ) { return; } if ( ! $( e.target ).closest( '#adminmenu' ).length ) { $adminmenu.find( 'li.opensub' ).removeClass( 'opensub' ); } }); /* * Handles the opening or closing the submenu based on the mobile click\|touch event. * * @param {Event} event The event object. * * @returns {void} / $adminmenu.find( 'a.wp-has-submenu' ).on( mobileEvent + '.wp-mobile-hover', function( event ) { var $menuItem = $(this).parent(); if ( $adminmenu.data( 'wp-responsive' ) ) { return; } // Show the sub instead of following the link if: // - the submenu is not open // - the submenu is not shown inline or the menu is not folded if ( ! $menuItem.hasClass( 'opensub' ) && ( ! $menuItem.hasClass( 'wp-menu-open' ) \|\| $menuItem.width() < 40 ) ) { event.preventDefault(); adjustSubmenu( $menuItem ); $adminmenu.find( 'li.opensub' ).removeClass( 'opensub' ); $menuItem.addClass('opensub'); } }); } if ( ! isIOS && ! isAndroid ) { $adminmenu.find( 'li.wp-has-submenu' ).hoverIntent({ /* * Opens the submenu when hovered over the menu item for desktops. * * @returns {void} / over: function() { var $menuItem = $( this ), $submenu = $menuItem.find( '.wp-submenu' ), top = parseInt( $submenu.css( 'top' ), 10 ); if ( isNaN( top ) \|\| top > -5 ) { // the submenu is visible return; } if ( $adminmenu.data( 'wp-responsive' ) ) { // The menu is in responsive mode, bail return; } adjustSubmenu( $menuItem ); $adminmenu.find( 'li.opensub' ).removeClass( 'opensub' ); $menuItem.addClass( 'opensub' ); }, /* * Closes the submenu when no longer hovering the menu item. * * @returns {void} / out: function(){ if ( $adminmenu.data( 'wp-responsive' ) ) { // The menu is in responsive mode, bail return; } $( this ).removeClass( 'opensub' ).find( '.wp-submenu' ).css( 'margin-top', '' ); }, timeout: 200, sensitivity: 7, interval: 90 }); /* * Opens the submenu on when focused on the menu item. * * @param {Event} event The event object. * * @returns {void} / $adminmenu.on( 'focus.adminmenu', '.wp-submenu a', function( event ) { if ( $adminmenu.data( 'wp-responsive' ) ) { // The menu is in responsive mode, bail return; } $( event.target ).closest( 'li.menu-top' ).addClass( 'opensub' ); /* * Closes the submenu on blur from the menu item. * * @param {Event} event The event object. * * @returns {void} / }).on( 'blur.adminmenu', '.wp-submenu a', function( event ) { if ( $adminmenu.data( 'wp-responsive' ) ) { return; } $( event.target ).closest( 'li.menu-top' ).removeClass( 'opensub' ); /* * Adjusts the size for the submenu. * * @returns {void} / }).find( 'li.wp-has-submenu.wp-not-current-submenu' ).on( 'focusin.adminmenu', function() { adjustSubmenu( $( this ) ); }); } / * The `.below-h2` class is here just for backward compatibility with plugins * that are (incorrectly) using it. Do not use. Use `.inline` instead. See #34570. * If '.wp-header-end' is found, append the notices after it otherwise * after the first h1 or h2 heading found within the main content. / if ( ! $headerEnd.length ) { $headerEnd = $( '.wrap h1, .wrap h2' ).first(); } $( 'div.updated, div.error, div.notice' ).not( '.inline, .below-h2' ).insertAfter( $headerEnd ); /* * Makes notices dismissible. * * @since 4.4.0 * * @returns {void} / function makeNoticesDismissible() { $( '.notice.is-dismissible' ).each( function() { var $el = $( this ), $button = $( '<button type="button" class="notice-dismiss"><span class="screen-reader-text"></span></button>' ), btnText = commonL10n.dismiss \|\| ''; // Ensure plain text $button.find( '.screen-reader-text' ).text( btnText ); $button.on( 'click.wp-dismiss-notice', function( event ) { event.preventDefault(); $el.fadeTo( 100, 0, function() { $el.slideUp( 100, function() { $el.remove(); }); }); }); $el.append( $button ); }); } $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 ); // Init screen meta screenMeta.init(); /* * Checks a checkbox. * * This event needs to be delegated. Ticket #37973. * * @returns {boolean} Returns whether a checkbox is checked or not. / $body.on( 'click', 'tbody > tr > .check-column :checkbox', function( event ) { // Shift click to select a range of checkboxes. if ( 'undefined' == event.shiftKey ) { return true; } if ( event.shiftKey ) { if ( !lastClicked ) { return true; } checks = $( lastClicked ).closest( 'form' ).find( ':checkbox' ).filter( ':visible:enabled' ); first = checks.index( lastClicked ); last = checks.index( this ); checked = $(this).prop('checked'); if ( 0 < first && 0 < last && first != last ) { sliced = ( last > first ) ? checks.slice( first, last ) : checks.slice( last, first ); sliced.prop( 'checked', function() { if ( $(this).closest('tr').is(':visible') ) return checked; return false; }); } } lastClicked = this; // Toggle the "Select all" checkboxes depending if the other ones are all checked or not. var unchecked = $(this).closest('tbody').find(':checkbox').filter(':visible:enabled').not(':checked'); /* * Determines if all checkboxes are checked. * * @returns {boolean} Returns true if there are no unchecked checkboxes. / $(this).closest('table').children('thead, tfoot').find(':checkbox').prop('checked', function() { return ( 0 === unchecked.length ); }); return true; }); /* * Controls all the toggles on bulk toggle change. * * When the bulk checkbox is changed, all the checkboxes in the tables are changed accordingly. * When the shift-button is pressed while changing the bulk checkbox the checkboxes in the table are inverted. * * This event needs to be delegated. Ticket #37973. * * @param {Event} event The event object. * * @returns {boolean} / $body.on( 'click.wp-toggle-checkboxes', 'thead .check-column :checkbox, tfoot .check-column :checkbox', function( event ) { var $this = $(this), $table = $this.closest( 'table' ), controlChecked = $this.prop('checked'), toggle = event.shiftKey \|\| $this.data('wp-toggle'); $table.children( 'tbody' ).filter(':visible') .children().children('.check-column').find(':checkbox') /* * Updates the checked state on the checkbox in the table. * * @returns {boolean} True checks the checkbox, False unchecks the checkbox. / .prop('checked', function() { if ( $(this).is(':hidden,:disabled') ) { return false; } if ( toggle ) { return ! $(this).prop( 'checked' ); } else if ( controlChecked ) { return true; } return false; }); $table.children('thead, tfoot').filter(':visible') .children().children('.check-column').find(':checkbox') /* * Syncs the bulk checkboxes on the top and bottom of the table. * * @returns {boolean} True checks the checkbox, False unchecks the checkbox. / .prop('checked', function() { if ( toggle ) { return false; } else if ( controlChecked ) { return true; } return false; }); }); /* * Shows row actions on focus of its parent container element or any other elements contained within. * * @returns {void} / $( '#wpbody-content' ).on({ focusin: function() { clearTimeout( transitionTimeout ); focusedRowActions = $( this ).find( '.row-actions' ); // transitionTimeout is necessary for Firefox, but Chrome won't remove the CSS class without a little help. $( '.row-actions' ).not( this ).removeClass( 'visible' ); focusedRowActions.addClass( 'visible' ); }, focusout: function() { // Tabbing between post title and .row-actions links needs a brief pause, otherwise // the .row-actions div gets hidden in transit in some browsers (ahem, Firefox). transitionTimeout = setTimeout( function() { focusedRowActions.removeClass( 'visible' ); }, 30 ); } }, '.has-row-actions' ); // Toggle list table rows on small screens $( 'tbody' ).on( 'click', '.toggle-row', function() { $( this ).closest( 'tr' ).toggleClass( 'is-expanded' ); }); $('#default-password-nag-no').click( function() { setUserSetting('default_password_nag', 'hide'); $('div.default-password-nag').hide(); return false; }); /* * Handles tab keypresses in theme and plugin editor textareas. * * @param {Event} e The event object. * * @returns {void} / $('#newcontent').bind('keydown.wpevent_InsertTab', function(e) { var el = e.target, selStart, selEnd, val, scroll, sel; // After pressing escape key (keyCode: 27), the tab key should tab out of the textarea. if ( e.keyCode == 27 ) { // when pressing Escape: Opera 12 and 27 blur form fields, IE 8 clears them e.preventDefault(); $(el).data('tab-out', true); return; } // Only listen for plain tab key (keyCode: 9) without any modifiers. if ( e.keyCode != 9 \|\| e.ctrlKey \|\| e.altKey \|\| e.shiftKey ) return; // After tabbing out, reset it so next time the tab key can be used again. if ( $(el).data('tab-out') ) { $(el).data('tab-out', false); return; } selStart = el.selectionStart; selEnd = el.selectionEnd; val = el.value; // If any text is selected, replace the selection with a tab character. if ( document.selection ) { el.focus(); sel = document.selection.createRange(); sel.text = '\t'; } else if ( selStart >= 0 ) { scroll = this.scrollTop; el.value = val.substring(0, selStart).concat('\t', val.substring(selEnd) ); el.selectionStart = el.selectionEnd = selStart + 1; this.scrollTop = scroll; } // Cancel the regular tab functionality, to prevent losing focus of the textarea. if ( e.stopPropagation ) e.stopPropagation(); if ( e.preventDefault ) e.preventDefault(); }); // Reset page number variable for new filters/searches but not for bulk actions. See #17685. if ( pageInput.length ) { /* * Handles pagination variable when filtering the list table. * * Set the pagination argument to the first page when the post-filter form is submitted. * This happens when pressing the 'filter' button on the list table page. * * The pagination argument should not be touched when the bulk action dropdowns are set to do anything. * * The form closest to the pageInput is the post-filter form. * * @returns {void} / pageInput.closest('form').submit( function() { / * action = bulk action dropdown at the top of the table * action2 = bulk action dropdow at the bottom of the table / if ( $('select[name="action"]').val() == -1 && $('select[name="action2"]').val() == -1 && pageInput.val() == currentPage ) pageInput.val('1'); }); } /* * Resets the bulk actions when the search button is clicked. * * @returns {void} / $('.search-box input[type="search"], .search-box input[type="submit"]').mousedown(function () { $('select[name^="action"]').val('-1'); }); /* * Scrolls into view when focus.scroll-into-view is triggered. * * @param {Event} e The event object. * * @returns {void} / $('#contextual-help-link, #show-settings-link').on( 'focus.scroll-into-view', function(e){ if ( e.target.scrollIntoView ) e.target.scrollIntoView(false); }); /* * Disables the submit upload buttons when no data is entered. * * @returns {void} / (function(){ var button, input, form = $('form.wp-upload-form'); // Exit when no upload form is found. if ( ! form.length ) return; button = form.find('input[type="submit"]'); input = form.find('input[type="file"]'); /* * Determines if any data is entered in any file upload input. * * @since 3.5.0 * * @returns {void} / function toggleUploadButton() { // When no inputs have a value, disable the upload buttons. button.prop('disabled', '' === input.map( function() { return $(this).val(); }).get().join('')); } // Update the status initially. toggleUploadButton(); // Update the status when any file input changes. input.on('change', toggleUploadButton); })(); /* * Pins the menu while distraction-free writing is enabled. * * @param {Event} event Event data. * * @since 4.1.0 * * @returns {void} / function pinMenu( event ) { var windowPos = $window.scrollTop(), resizing = ! event \|\| event.type !== 'scroll'; if ( isIOS \|\| isIE8 \|\| $adminmenu.data( 'wp-responsive' ) ) { return; } / * When the menu is higher than the window and smaller than the entire page. * It should be adjusted to be able to see the entire menu. * * Otherwise it can be accessed normally. / if ( height.menu + height.adminbar < height.window \|\| height.menu + height.adminbar + 20 > height.wpwrap ) { unpinMenu(); return; } menuIsPinned = true; // If the menu is higher than the window, compensate on scroll. if ( height.menu + height.adminbar > height.window ) { // Check for overscrolling, this happens when swiping up at the top of the document in modern browsers. if ( windowPos < 0 ) { // Stick the menu to the top. if ( ! pinnedMenuTop ) { pinnedMenuTop = true; pinnedMenuBottom = false; $adminMenuWrap.css({ position: 'fixed', top: '', bottom: '' }); } return; } else if ( windowPos + height.window > $document.height() - 1 ) { // When overscrolling at the bottom, stick the menu to the bottom. if ( ! pinnedMenuBottom ) { pinnedMenuBottom = true; pinnedMenuTop = false; $adminMenuWrap.css({ position: 'fixed', top: '', bottom: 0 }); } return; } if ( windowPos > lastScrollPosition ) { // When a down scroll has been detected. // If it was pinned to the top, unpin and calculate relative scroll. if ( pinnedMenuTop ) { pinnedMenuTop = false; // Calculate new offset position. menuTop = $adminMenuWrap.offset().top - height.adminbar - ( windowPos - lastScrollPosition ); if ( menuTop + height.menu + height.adminbar < windowPos + height.window ) { menuTop = windowPos + height.window - height.menu - height.adminbar; } $adminMenuWrap.css({ position: 'absolute', top: menuTop, bottom: '' }); } else if ( ! pinnedMenuBottom && $adminMenuWrap.offset().top + height.menu < windowPos + height.window ) { // Pin it to the bottom. pinnedMenuBottom = true; $adminMenuWrap.css({ position: 'fixed', top: '', bottom: 0 }); } } else if ( windowPos < lastScrollPosition ) { // When a scroll up is detected. // If it was pinned to the bottom, unpin and calculate relative scroll. if ( pinnedMenuBottom ) { pinnedMenuBottom = false; // Calculate new offset position. menuTop = $adminMenuWrap.offset().top - height.adminbar + ( lastScrollPosition - windowPos ); if ( menuTop + height.menu > windowPos + height.window ) { menuTop = windowPos; } $adminMenuWrap.css({ position: 'absolute', top: menuTop, bottom: '' }); } else if ( ! pinnedMenuTop && $adminMenuWrap.offset().top >= windowPos + height.adminbar ) { // Pin it to the top. pinnedMenuTop = true; $adminMenuWrap.css({ position: 'fixed', top: '', bottom: '' }); } } else if ( resizing ) { // Window is being resized. pinnedMenuTop = pinnedMenuBottom = false; // Calculate the new offset. menuTop = windowPos + height.window - height.menu - height.adminbar - 1; if ( menuTop > 0 ) { $adminMenuWrap.css({ position: 'absolute', top: menuTop, bottom: '' }); } else { unpinMenu(); } } } lastScrollPosition = windowPos; } /* * Determines the height of certain elements. * * @since 4.1.0 * * @returns {void} / function resetHeights() { height = { window: $window.height(), wpwrap: $wpwrap.height(), adminbar: $adminbar.height(), menu: $adminMenuWrap.height() }; } /* * Unpins the menu. * * @since 4.1.0 * * @returns {void} / function unpinMenu() { if ( isIOS \|\| ! menuIsPinned ) { return; } pinnedMenuTop = pinnedMenuBottom = menuIsPinned = false; $adminMenuWrap.css({ position: '', top: '', bottom: '' }); } /* * Pins and unpins the menu when applicable. * * @since 4.1.0 * * @returns {void} / function setPinMenu() { resetHeights(); if ( $adminmenu.data('wp-responsive') ) { $body.removeClass( 'sticky-menu' ); unpinMenu(); } else if ( height.menu + height.adminbar > height.window ) { pinMenu(); $body.removeClass( 'sticky-menu' ); } else { $body.addClass( 'sticky-menu' ); unpinMenu(); } } if ( ! isIOS ) { $window.on( 'scroll.pin-menu', pinMenu ); $document.on( 'tinymce-editor-init.pin-menu', function( event, editor ) { editor.on( 'wp-autoresize', resetHeights ); }); } /* * Changes the sortables and responsiveness of metaboxes. * * @since 3.8.0 * @returns {void} / window.wpResponsive = { /** * Initializes the wpResponsive object. * * @since 3.8.0 * * @returns {void} / init: function() { var self = this; // Modify functionality based on custom activate/deactivate event $document.on( 'wp-responsive-activate.wp-responsive', function() { self.activate(); }).on( 'wp-responsive-deactivate.wp-responsive', function() { self.deactivate(); }); $( '#site-admin-bar-menu-toggle a' ).attr( 'aria-expanded', 'false' ); // Toggle sidebar when toggle is clicked. $( '#site-admin-bar-menu-toggle' ).on( 'click.wp-responsive', function( event ) { event.preventDefault(); // close any open toolbar submenus. $adminbar.find( '.hover' ).removeClass( 'hover' ); $wpwrap.toggleClass( 'wp-responsive-open' ); if ( $wpwrap.hasClass( 'wp-responsive-open' ) ) { $(this).find('a').attr( 'aria-expanded', 'true' ); $( '#adminmenu a:first' ).focus(); } else { $(this).find('a').attr( 'aria-expanded', 'false' ); } } ); // Add menu events. $adminmenu.on( 'click.wp-responsive', 'li.wp-has-submenu > a', function( event ) { if ( ! $adminmenu.data('wp-responsive') ) { return; } $( this ).parent( 'li' ).toggleClass( 'selected' ); event.preventDefault(); }); self.trigger(); $document.on( 'wp-window-resized.wp-responsive', $.proxy( this.trigger, this ) ); // This needs to run later as UI Sortable may be initialized later on $(document).ready(). $window.on( 'load.wp-responsive', function() { var width = navigator.userAgent.indexOf('AppleWebKit/') > -1 ? $window.width() : window.innerWidth; if ( width <= 782 ) { self.disableSortables(); } }); }, /* * Changes properties of body and admin menu. * * Pins and unpins the menu and adds the auto-fold class to the body. * Makes the admin menu responsive and disables the metabox sortables. * * @since 3.8.0 * * @returns {void} / activate: function() { setPinMenu(); if ( ! $body.hasClass( 'auto-fold' ) ) { $body.addClass( 'auto-fold' ); } $adminmenu.data( 'wp-responsive', 1 ); this.disableSortables(); }, /* * Changes properties of admin menu and enables metabox sortables. * * Pin and unpin the menu. * Removes the responsiveness of the admin menu and enables the metabox sortables. * * @since 3.8.0 * * @returns {void} / deactivate: function() { setPinMenu(); $adminmenu.removeData('wp-responsive'); this.enableSortables(); }, /* * Sets the responsiveness and enables the overlay based on the viewport width. * * @since 3.8.0 * * @returns {void} / trigger: function() { var viewportWidth = getViewportWidth(); // Exclude IE < 9, it doesn't support @media CSS rules. if ( ! viewportWidth ) { return; } if ( viewportWidth <= 782 ) { if ( ! wpResponsiveActive ) { $document.trigger( 'wp-responsive-activate' ); wpResponsiveActive = true; } } else { if ( wpResponsiveActive ) { $document.trigger( 'wp-responsive-deactivate' ); wpResponsiveActive = false; } } if ( viewportWidth <= 480 ) { this.enableOverlay(); } else { this.disableOverlay(); } }, /* * Inserts a responsive overlay and toggles the window. * * @since 3.8.0 * * @returns {void} / enableOverlay: function() { if ( $overlay.length === 0 ) { $overlay = $( '<div id="wp-responsive-overlay"></div>' ) .insertAfter( '#wpcontent' ) .hide() .on( 'click.wp-responsive', function() { $toolbar.find( '.menupop.hover' ).removeClass( 'hover' ); $( this ).hide(); }); } $toolbarPopups.on( 'click.wp-responsive', function() { $overlay.show(); }); }, /* * Disables the responsive overlay and removes the overlay. * * @since 3.8.0 * * @returns {void} / disableOverlay: function() { $toolbarPopups.off( 'click.wp-responsive' ); $overlay.hide(); }, /* * Disables sortables. * * @since 3.8.0 * * @returns {void} / disableSortables: function() { if ( $sortables.length ) { try { $sortables.sortable( 'disable' ); } catch ( e ) {} } }, /* * Enables sortables. * * @since 3.8.0 * * @returns {void} / enableSortables: function() { if ( $sortables.length ) { try { $sortables.sortable( 'enable' ); } catch ( e ) {} } } }; /* * Add an ARIA role `button` to elements that behave like UI controls when JavaScript is on. * * @since 4.5.0 * * @returns {void} / function aria_button_if_js() { $( '.aria-button-if-js' ).attr( 'role', 'button' ); } $( document ).ajaxComplete( function() { aria_button_if_js(); }); /* * Get the viewport width. * * @since 4.7.0 * * @returns {number\|boolean} The current viewport width or false if the * browser doesn't support innerWidth (IE < 9). / function getViewportWidth() { var viewportWidth = false; if ( window.innerWidth ) { // On phones, window.innerWidth is affected by zooming. viewportWidth = Math.max( window.innerWidth, document.documentElement.clientWidth ); } return viewportWidth; } /* * Sets the admin menu collapsed/expanded state. * * Sets the global variable `menuState` and triggers a custom event passing * the current menu state. * * @since 4.7.0 * * @returns {void} / function setMenuState() { var viewportWidth = getViewportWidth() \|\| 961; if ( viewportWidth <= 782 ) { menuState = 'responsive'; } else if ( $body.hasClass( 'folded' ) \|\| ( $body.hasClass( 'auto-fold' ) && viewportWidth <= 960 && viewportWidth > 782 ) ) { menuState = 'folded'; } else { menuState = 'open'; } $document.trigger( 'wp-menu-state-set', { state: menuState } ); } // Set the menu state when the window gets resized. $document.on( 'wp-window-resized.set-menu-state', setMenuState ); /* * Sets ARIA attributes on the collapse/expand menu button. * * When the admin menu is open or folded, updates the `aria-expanded` and * `aria-label` attributes of the button to give feedback to assistive * technologies. In the responsive view, the button is always hidden. * * @since 4.7.0 * * @returns {void} / $document.on( 'wp-menu-state-set wp-collapse-menu', function( event, eventData ) { var $collapseButton = $( '#collapse-button' ), ariaExpanded = 'true', ariaLabelText = commonL10n.collapseMenu; if ( 'folded' === eventData.state ) { ariaExpanded = 'false'; ariaLabelText = commonL10n.expandMenu; } $collapseButton.attr({ 'aria-expanded': ariaExpanded, 'aria-label': ariaLabelText }); }); window.wpResponsive.init(); setPinMenu(); setMenuState(); currentMenuItemHasPopup(); makeNoticesDismissible(); aria_button_if_js(); $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 ); // Set initial focus on a specific element. $( '.wp-initial-focus' ).focus(); // Toggle update details on update-core.php. $body.on( 'click', '.js-update-details-toggle', function() { var $updateNotice = $( this ).closest( '.js-update-details' ), $progressDiv = $( '#' + $updateNotice.data( 'update-details' ) ); / * When clicking on "Show details" move the progress div below the update * notice. Make sure it gets moved just the first time. / if ( ! $progressDiv.hasClass( 'update-details-moved' ) ) { $progressDiv.insertAfter( $updateNotice ).addClass( 'update-details-moved' ); } // Toggle the progress div visibility. $progressDiv.toggle(); // Toggle the Show Details button expanded state. $( this ).attr( 'aria-expanded', $progressDiv.is( ':visible' ) ); }); }); // Fire a custom jQuery event at the end of window resize. ( function() { var timeout; /* * Triggers the WP window-resize event. * * @since 3.8.0 * * @returns {void} / function triggerEvent() { $document.trigger( 'wp-window-resized' ); } /* * Fires the trigger event again after 200 ms. * * @since 3.8.0 * * @returns {void} */ function fireOnce() { window.clearTimeout( timeout ); timeout = window.setTimeout( triggerEvent, 200 ); } $window.on( 'resize.wp-fire-once', fireOnce ); }()); // Make Windows 8 devices play along nicely. (function(){ if ( '-ms-user-select' in document.documentElement.style && navigator.userAgent.match(/IEMobile\/10\.0/) ) { var msViewportStyle = document.createElement( 'style' ); msViewportStyle.appendChild( document.createTextNode( '@-ms-viewport{width:auto!important}' ) ); document.getElementsByTagName( 'head' )[0].appendChild( msViewportStyle ); } })(); }( jQuery, window )); Back

Edit File : common.js | Size : 41.77 KB

/**
 * @output site-admin/js/common.js
 */

/* global setUserSetting, ajaxurl, commonL10n, alert, confirm, pagenow */
/* global columns, screenMeta */

/**
 *  Adds common WordPress functionality to the window.
 *
 *  @param {jQuery} $        jQuery object.
 *  @param {Object} window   The window object.
 *  @param {mixed} undefined Unused.
 */
( function( $, window, undefined ) {
	var $document = $( document ),
		$window = $( window ),
		$body = $( document.body );

/**
 * Removed in 3.3.0, needed for back-compatibility.
 *
 * @since 2.7.0
 * @deprecated 3.3.0
 */
window.adminMenu = {
	init : function() {},
	fold : function() {},
	restoreMenuState : function() {},
	toggle : function() {},
	favorites : function() {}
};

// Show/hide/save table columns.
window.columns = {

/**
	 * Initializes the column toggles in the screen options.
	 *
	 * Binds an onClick event to the checkboxes to show or hide the table columns
	 * based on their toggled state. And persists the toggled state.
	 *
	 * @since 2.7.0
	 *
	 * @returns {void}
	 */
	init : function() {
		var that = this;
		$('.hide-column-tog', '#adv-settings').click( function() {
			var $t = $(this), column = $t.val();
			if ( $t.prop('checked') )
				that.checked(column);
			else
				that.unchecked(column);

columns.saveManageColumnsState();
		});
	},

/**
	 * Saves the toggled state for the columns.
	 *
	 * Saves whether the columns should be shown or hidden on a page.
	 *
	 * @since 3.0.0
	 *
	 * @returns {void}
	 */
	saveManageColumnsState : function() {
		var hidden = this.hidden();
		$.post(ajaxurl, {
			action: 'hidden-columns',
			hidden: hidden,
			screenoptionnonce: $('#screenoptionnonce').val(),
			page: pagenow
		});
	},

/**
	 * Makes a column visible and adjusts the column span for the table.
	 *
	 * @since 3.0.0
	 * @param {string} column The column name.
	 *
	 * @returns {void}
	 */
	checked : function(column) {
		$('.column-' + column).removeClass( 'hidden' );
		this.colSpanChange(+1);
	},

/**
	 * Hides a column and adjusts the column span for the table.
	 *
	 * @since 3.0.0
	 * @param {string} column The column name.
	 *
	 * @returns {void}
	 */
	unchecked : function(column) {
		$('.column-' + column).addClass( 'hidden' );
		this.colSpanChange(-1);
	},

/**
	 * Gets all hidden columns.
	 *
	 * @since 3.0.0
	 *
	 * @returns {string} The hidden column names separated by a comma.
	 */
	hidden : function() {
		return $( '.manage-column[id]' ).filter( '.hidden' ).map(function() {
			return this.id;
		}).get().join( ',' );
	},

/**
	 * Gets the checked column toggles from the screen options.
	 *
	 * @since 3.0.0
	 *
	 * @returns {string} String containing the checked column names.
	 */
	useCheckboxesForHidden : function() {
		this.hidden = function(){
			return $('.hide-column-tog').not(':checked').map(function() {
				var id = this.id;
				return id.substring( id, id.length - 5 );
			}).get().join(',');
		};
	},

/**
	 * Adjusts the column span for the table.
	 *
	 * @since 3.1.0
	 *
	 * @param {int} diff The modifier for the column span.
	 */
	colSpanChange : function(diff) {
		var $t = $('table').find('.colspanchange'), n;
		if ( !$t.length )
			return;
		n = parseInt( $t.attr('colspan'), 10 ) + diff;
		$t.attr('colspan', n.toString());
	}
};

$document.ready(function(){columns.init();});

/**
 * Validates that the required form fields are not empty.
 *
 * @since 2.9.0
 *
 * @param {jQuery} form The form to validate.
 *
 * @returns {boolean} Returns true if all required fields are not an empty string.
 */
window.validateForm = function( form ) {
	return !$( form )
		.find( '.form-required' )
		.filter( function() { return $( ':input:visible', this ).val() === ''; } )
		.addClass( 'form-invalid' )
		.find( ':input:visible' )
		.change( function() { $( this ).closest( '.form-invalid' ).removeClass( 'form-invalid' ); } )
		.length;
};

// stub for doing better warnings
/**
 * Shows message pop-up notice or confirmation message.
 *
 * @since 2.7.0
 *
 * @type {{warn: showNotice.warn, note: showNotice.note}}
 *
 * @returns {void}
 */
window.showNotice = {

/**
	 * Shows a delete confirmation pop-up message.
	 *
	 * @since 2.7.0
	 *
	 * @returns {boolean} Returns true if the message is confirmed.
	 */
	warn : function() {
		var msg = commonL10n.warnDelete || '';
		if ( confirm(msg) ) {
			return true;
		}

return false;
	},

/**
	 * Shows an alert message.
	 *
	 * @since 2.7.0
	 *
	 * @param text The text to display in the message.
	 */
	note : function(text) {
		alert(text);
	}
};

/**
 * Represents the functions for the meta screen options panel.
 *
 * @since 3.2.0
 *
 * @type {{element: null, toggles: null, page: null, init: screenMeta.init,
 *         toggleEvent: screenMeta.toggleEvent, open: screenMeta.open,
 *         close: screenMeta.close}}
 *
 * @returns {void}
 */
window.screenMeta = {
	element: null, // #screen-meta
	toggles: null, // .screen-meta-toggle
	page:    null, // #wpcontent

/**
	 * Initializes the screen meta options panel.
	 *
	 * @since 3.2.0
	 *
	 * @returns {void}
	 */
	init: function() {
		this.element = $('#screen-meta');
		this.toggles = $( '#screen-meta-links' ).find( '.show-settings' );
		this.page    = $('#wpcontent');

this.toggles.click( this.toggleEvent );
	},

/**
	 * Toggles the screen meta options panel.
	 *
	 * @since 3.2.0
	 *
	 * @returns {void}
	 */
	toggleEvent: function() {
		var panel = $( '#' + $( this ).attr( 'aria-controls' ) );

if ( !panel.length )
			return;

if ( panel.is(':visible') )
			screenMeta.close( panel, $(this) );
		else
			screenMeta.open( panel, $(this) );
	},

/**
	 * Opens the screen meta options panel.
	 *
	 * @since 3.2.0
	 *
	 * @param {jQuery} panel  The screen meta options panel div.
	 * @param {jQuery} button The toggle button.
	 *
	 * @returns {void}
	 */
	open: function( panel, button ) {

$( '#screen-meta-links' ).find( '.screen-meta-toggle' ).not( button.parent() ).css( 'visibility', 'hidden' );

panel.parent().show();

/**
		 * Sets the focus to the meta options panel and adds the necessary CSS classes.
		 *
		 * @since 3.2.0
		 *
		 * @returns {void}
		 */
		panel.slideDown( 'fast', function() {
			panel.focus();
			button.addClass( 'screen-meta-active' ).attr( 'aria-expanded', true );
		});

$document.trigger( 'screen:options:open' );
	},

/**
	 * Closes the screen meta options panel.
	 *
	 * @since 3.2.0
	 *
	 * @param {jQuery} panel  The screen meta options panel div.
	 * @param {jQuery} button The toggle button.
	 *
	 * @returns {void}
	 */
	close: function( panel, button ) {
		/**
		 * Hides the screen meta options panel.
		 *
		 * @since 3.2.0
		 *
		 * @returns {void}
		 */
		panel.slideUp( 'fast', function() {
			button.removeClass( 'screen-meta-active' ).attr( 'aria-expanded', false );
			$('.screen-meta-toggle').css('visibility', '');
			panel.parent().hide();
		});

$document.trigger( 'screen:options:close' );
	}
};

/**
 * Initializes the help tabs in the help panel.
 *
 * @param {Event} e The event object.
 *
 * @returns {void}
 */
$('.contextual-help-tabs').delegate('a', 'click', function(e) {
	var link = $(this),
		panel;

e.preventDefault();

// Don't do anything if the click is for the tab already showing.
	if ( link.is('.active a') )
		return false;

// Links
	$('.contextual-help-tabs .active').removeClass('active');
	link.parent('li').addClass('active');

panel = $( link.attr('href') );

// Panels
	$('.help-tab-content').not( panel ).removeClass('active').hide();
	panel.addClass('active').show();
});

/**
 * Update custom permalink structure via buttons.
 */
var permalinkStructureFocused = false,
    $permalinkStructure       = $( '#permalink_structure' ),
    $permalinkStructureInputs = $( '.permalink-structure input:radio' ),
    $permalinkCustomSelection = $( '#custom_selection' ),
    $availableStructureTags   = $( '.form-table.permalink-structure .available-structure-tags button' );

// Change permalink structure input when selecting one of the common structures.
$permalinkStructureInputs.on( 'change', function() {
	if ( 'custom' === this.value ) {
		return;
	}

$permalinkStructure.val( this.value );

// Update button states after selection.
	$availableStructureTags.each( function() {
		changeStructureTagButtonState( $( this ) );
	} );
} );

$permalinkStructure.on( 'click input', function() {
	$permalinkCustomSelection.prop( 'checked', true );
} );

// Check if the permalink structure input field has had focus at least once.
$permalinkStructure.on( 'focus', function( event ) {
	permalinkStructureFocused = true;
	$( this ).off( event );
} );

/**
 * Enables or disables a structure tag button depending on its usage.
 *
 * If the structure is already used in the custom permalink structure,
 * it will be disabled.
 *
 * @param {object} button Button jQuery object.
 */
function changeStructureTagButtonState( button ) {
	if ( -1 !== $permalinkStructure.val().indexOf( button.text().trim() ) ) {
		button.attr( 'data-label', button.attr( 'aria-label' ) );
		button.attr( 'aria-label', button.attr( 'data-used' ) );
		button.attr( 'aria-pressed', true );
		button.addClass( 'active' );
	} else if ( button.attr( 'data-label' ) ) {
		button.attr( 'aria-label', button.attr( 'data-label' ) );
		button.attr( 'aria-pressed', false );
		button.removeClass( 'active' );
	}
}

// Check initial button state.
$availableStructureTags.each( function() {
	changeStructureTagButtonState( $( this ) );
} );

// Observe permalink structure field and disable buttons of tags that are already present.
$permalinkStructure.on( 'change', function() {
	$availableStructureTags.each( function() {
		changeStructureTagButtonState( $( this ) );
	} );
} );

$availableStructureTags.on( 'click', function() {
	var permalinkStructureValue = $permalinkStructure.val(),
	    selectionStart          = $permalinkStructure[ 0 ].selectionStart,
	    selectionEnd            = $permalinkStructure[ 0 ].selectionEnd,
	    textToAppend            = $( this ).text().trim(),
	    textToAnnounce          = $( this ).attr( 'data-added' ),
	    newSelectionStart;

// Remove structure tag if already part of the structure.
	if ( -1 !== permalinkStructureValue.indexOf( textToAppend ) ) {
		permalinkStructureValue = permalinkStructureValue.replace( textToAppend + '/', '' );

$permalinkStructure.val( '/' === permalinkStructureValue ? '' : permalinkStructureValue );

// Announce change to screen readers.
		$( '#custom_selection_updated' ).text( textToAnnounce );

// Disable button.
		changeStructureTagButtonState( $( this ) );

return;
	}

// Input field never had focus, move selection to end of input.
	if ( ! permalinkStructureFocused && 0 === selectionStart && 0 === selectionEnd ) {
		selectionStart = selectionEnd = permalinkStructureValue.length;
	}

$permalinkCustomSelection.prop( 'checked', true );

// Prepend and append slashes if necessary.
	if ( '/' !== permalinkStructureValue.substr( 0, selectionStart ).substr( -1 ) ) {
		textToAppend = '/' + textToAppend;
	}

if ( '/' !== permalinkStructureValue.substr( selectionEnd, 1 ) ) {
		textToAppend = textToAppend + '/';
	}

// Insert structure tag at the specified position.
	$permalinkStructure.val( permalinkStructureValue.substr( 0, selectionStart ) + textToAppend + permalinkStructureValue.substr( selectionEnd ) );

// Announce change to screen readers.
	$( '#custom_selection_updated' ).text( textToAnnounce );

// Disable button.
	changeStructureTagButtonState( $( this ) );

// If input had focus give it back with cursor right after appended text.
	if ( permalinkStructureFocused && $permalinkStructure[0].setSelectionRange ) {
		newSelectionStart = ( permalinkStructureValue.substr( 0, selectionStart ) + textToAppend ).length;
		$permalinkStructure[0].setSelectionRange( newSelectionStart, newSelectionStart );
		$permalinkStructure.focus();
	}
} );

$document.ready( function() {
	var checks, first, last, checked, sliced, mobileEvent, transitionTimeout, focusedRowActions,
		lastClicked = false,
		pageInput = $('input.current-page'),
		currentPage = pageInput.val(),
		isIOS = /iPhone|iPad|iPod/.test( navigator.userAgent ),
		isAndroid = navigator.userAgent.indexOf( 'Android' ) !== -1,
		isIE8 = $( document.documentElement ).hasClass( 'ie8' ),
		$adminMenuWrap = $( '#adminmenuwrap' ),
		$wpwrap = $( '#wpwrap' ),
		$adminmenu = $( '#adminmenu' ),
		$overlay = $( '#wp-responsive-overlay' ),
		$toolbar = $( '#wp-toolbar' ),
		$toolbarPopups = $toolbar.find( 'a[aria-haspopup="true"]' ),
		$sortables = $('.meta-box-sortables'),
		wpResponsiveActive = false,
		$adminbar = $( '#wpadminbar' ),
		lastScrollPosition = 0,
		pinnedMenuTop = false,
		pinnedMenuBottom = false,
		menuTop = 0,
		menuState,
		menuIsPinned = false,
		height = {
			window: $window.height(),
			wpwrap: $wpwrap.height(),
			adminbar: $adminbar.height(),
			menu: $adminMenuWrap.height()
		},
		$headerEnd = $( '.wp-header-end' );

/**
	 * Makes the fly-out submenu header clickable, when the menu is folded.
	 *
	 * @param {Event} e The event object.
	 *
	 * @returns {void}
	 */
	$adminmenu.on('click.wp-submenu-head', '.wp-submenu-head', function(e){
		$(e.target).parent().siblings('a').get(0).click();
	});

/**
	 * Collapses the admin menu.
	 *
	 * @returns {void}
	 */
	$( '#collapse-button' ).on( 'click.collapse-menu', function() {
		var viewportWidth = getViewportWidth() || 961;

// reset any compensation for submenus near the bottom of the screen
		$('#adminmenu div.wp-submenu').css('margin-top', '');

if ( viewportWidth < 960 ) {
			if ( $body.hasClass('auto-fold') ) {
				$body.removeClass('auto-fold').removeClass('folded');
				setUserSetting('unfold', 1);
				setUserSetting('mfold', 'o');
				menuState = 'open';
			} else {
				$body.addClass('auto-fold');
				setUserSetting('unfold', 0);
				menuState = 'folded';
			}
		} else {
			if ( $body.hasClass('folded') ) {
				$body.removeClass('folded');
				setUserSetting('mfold', 'o');
				menuState = 'open';
			} else {
				$body.addClass('folded');
				setUserSetting('mfold', 'f');
				menuState = 'folded';
			}
		}

$document.trigger( 'wp-collapse-menu', { state: menuState } );
	});

/**
	 * Handles the `aria-haspopup` attribute on the current menu item when it has a submenu.
	 *
	 * @since 4.4.0
	 *
	 * @returns {void}
	 */
	function currentMenuItemHasPopup() {
		var $current = $( 'a.wp-has-current-submenu' );

if ( 'folded' === menuState ) {
			// When folded or auto-folded and not responsive view, the current menu item does have a fly-out sub-menu.
			$current.attr( 'aria-haspopup', 'true' );
		} else {
			// When expanded or in responsive view, reset aria-haspopup.
			$current.attr( 'aria-haspopup', 'false' );
		}
	}

$document.on( 'wp-menu-state-set wp-collapse-menu wp-responsive-activate wp-responsive-deactivate', currentMenuItemHasPopup );

/**
	 * Ensures an admin submenu is within the visual viewport.
	 *
	 * @since 4.1.0
	 *
	 * @param {jQuery} $menuItem The parent menu item containing the submenu.
	 *
	 * @returns {void}
	 */
	function adjustSubmenu( $menuItem ) {
		var bottomOffset, pageHeight, adjustment, theFold, menutop, wintop, maxtop,
			$submenu = $menuItem.find( '.wp-submenu' );

menutop = $menuItem.offset().top;
		wintop = $window.scrollTop();
		maxtop = menutop - wintop - 30; // max = make the top of the sub almost touch admin bar

bottomOffset = menutop + $submenu.height() + 1; // Bottom offset of the menu
		pageHeight = $wpwrap.height(); // Height of the entire page
		adjustment = 60 + bottomOffset - pageHeight;
		theFold = $window.height() + wintop - 50; // The fold

if ( theFold < ( bottomOffset - adjustment ) ) {
			adjustment = bottomOffset - theFold;
		}

if ( adjustment > maxtop ) {
			adjustment = maxtop;
		}

if ( adjustment > 1 ) {
			$submenu.css( 'margin-top', '-' + adjustment + 'px' );
		} else {
			$submenu.css( 'margin-top', '' );
		}
	}

if ( 'ontouchstart' in window || /IEMobile\/[1-9]/.test(navigator.userAgent) ) { // touch screen device
		// iOS Safari works with touchstart, the rest work with click
		mobileEvent = isIOS ? 'touchstart' : 'click';

/**
		 * Closes any open submenus when touch/click is not on the menu.
		 *
		 * @param {Event} e The event object.
		 *
		 * @returns {void}
		 */
		$body.on( mobileEvent+'.wp-mobile-hover', function(e) {
			if ( $adminmenu.data('wp-responsive') ) {
				return;
			}

if ( ! $( e.target ).closest( '#adminmenu' ).length ) {
				$adminmenu.find( 'li.opensub' ).removeClass( 'opensub' );
			}
		});

/**
		 * Handles the opening or closing the submenu based on the mobile click|touch event.
		 *
		 * @param {Event} event The event object.
		 *
		 * @returns {void}
		 */
		$adminmenu.find( 'a.wp-has-submenu' ).on( mobileEvent + '.wp-mobile-hover', function( event ) {
			var $menuItem = $(this).parent();

if ( $adminmenu.data( 'wp-responsive' ) ) {
				return;
			}

// Show the sub instead of following the link if:
			//	- the submenu is not open
			//	- the submenu is not shown inline or the menu is not folded
			if ( ! $menuItem.hasClass( 'opensub' ) && ( ! $menuItem.hasClass( 'wp-menu-open' ) || $menuItem.width() < 40 ) ) {
				event.preventDefault();
				adjustSubmenu( $menuItem );
				$adminmenu.find( 'li.opensub' ).removeClass( 'opensub' );
				$menuItem.addClass('opensub');
			}
		});
	}

if ( ! isIOS && ! isAndroid ) {
		$adminmenu.find( 'li.wp-has-submenu' ).hoverIntent({

/**
			 * Opens the submenu when hovered over the menu item for desktops.
			 *
			 * @returns {void}
			 */
			over: function() {
				var $menuItem = $( this ),
					$submenu = $menuItem.find( '.wp-submenu' ),
					top = parseInt( $submenu.css( 'top' ), 10 );

if ( isNaN( top ) || top > -5 ) { // the submenu is visible
					return;
				}

if ( $adminmenu.data( 'wp-responsive' ) ) {
					// The menu is in responsive mode, bail
					return;
				}

adjustSubmenu( $menuItem );
				$adminmenu.find( 'li.opensub' ).removeClass( 'opensub' );
				$menuItem.addClass( 'opensub' );
			},

/**
			 * Closes the submenu when no longer hovering the menu item.
			 *
			 * @returns {void}
			 */
			out: function(){
				if ( $adminmenu.data( 'wp-responsive' ) ) {
					// The menu is in responsive mode, bail
					return;
				}

$( this ).removeClass( 'opensub' ).find( '.wp-submenu' ).css( 'margin-top', '' );
			},
			timeout: 200,
			sensitivity: 7,
			interval: 90
		});

/**
		 * Opens the submenu on when focused on the menu item.
		 *
		 * @param {Event} event The event object.
		 *
		 * @returns {void}
		 */
		$adminmenu.on( 'focus.adminmenu', '.wp-submenu a', function( event ) {
			if ( $adminmenu.data( 'wp-responsive' ) ) {
				// The menu is in responsive mode, bail
				return;
			}

$( event.target ).closest( 'li.menu-top' ).addClass( 'opensub' );

/**
			 * Closes the submenu on blur from the menu item.
			 *
			 * @param {Event} event The event object.
			 *
			 * @returns {void}
			 */
		}).on( 'blur.adminmenu', '.wp-submenu a', function( event ) {
			if ( $adminmenu.data( 'wp-responsive' ) ) {
				return;
			}

$( event.target ).closest( 'li.menu-top' ).removeClass( 'opensub' );

/**
			 * Adjusts the size for the submenu.
			 *
			 * @returns {void}
			 */
		}).find( 'li.wp-has-submenu.wp-not-current-submenu' ).on( 'focusin.adminmenu', function() {
			adjustSubmenu( $( this ) );
		});
	}

/*
	 * The `.below-h2` class is here just for backward compatibility with plugins
	 * that are (incorrectly) using it. Do not use. Use `.inline` instead. See #34570.
	 * If '.wp-header-end' is found, append the notices after it otherwise
	 * after the first h1 or h2 heading found within the main content.
	 */
	if ( ! $headerEnd.length ) {
		$headerEnd = $( '.wrap h1, .wrap h2' ).first();
	}
	$( 'div.updated, div.error, div.notice' ).not( '.inline, .below-h2' ).insertAfter( $headerEnd );

/**
	 * Makes notices dismissible.
	 *
	 * @since 4.4.0
	 *
	 * @returns {void}
	 */
	function makeNoticesDismissible() {
		$( '.notice.is-dismissible' ).each( function() {
			var $el = $( this ),
				$button = $( '<button type="button" class="notice-dismiss"><span class="screen-reader-text"></span></button>' ),
				btnText = commonL10n.dismiss || '';

// Ensure plain text
			$button.find( '.screen-reader-text' ).text( btnText );
			$button.on( 'click.wp-dismiss-notice', function( event ) {
				event.preventDefault();
				$el.fadeTo( 100, 0, function() {
					$el.slideUp( 100, function() {
						$el.remove();
					});
				});
			});

$el.append( $button );
		});
	}

$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 );

// Init screen meta
	screenMeta.init();

/**
	 * Checks a checkbox.
	 *
	 * This event needs to be delegated. Ticket #37973.
	 *
	 * @returns {boolean} Returns whether a checkbox is checked or not.
	 */
	$body.on( 'click', 'tbody > tr > .check-column :checkbox', function( event ) {
		// Shift click to select a range of checkboxes.
		if ( 'undefined' == event.shiftKey ) { return true; }
		if ( event.shiftKey ) {
			if ( !lastClicked ) { return true; }
			checks = $( lastClicked ).closest( 'form' ).find( ':checkbox' ).filter( ':visible:enabled' );
			first = checks.index( lastClicked );
			last = checks.index( this );
			checked = $(this).prop('checked');
			if ( 0 < first && 0 < last && first != last ) {
				sliced = ( last > first ) ? checks.slice( first, last ) : checks.slice( last, first );
				sliced.prop( 'checked', function() {
					if ( $(this).closest('tr').is(':visible') )
						return checked;

return false;
				});
			}
		}
		lastClicked = this;

// Toggle the "Select all" checkboxes depending if the other ones are all checked or not.
		var unchecked = $(this).closest('tbody').find(':checkbox').filter(':visible:enabled').not(':checked');

/**
		 * Determines if all checkboxes are checked.
		 *
		 * @returns {boolean} Returns true if there are no unchecked checkboxes.
		 */
		$(this).closest('table').children('thead, tfoot').find(':checkbox').prop('checked', function() {
			return ( 0 === unchecked.length );
		});

return true;
	});

/**
	 * Controls all the toggles on bulk toggle change.
	 *
	 * When the bulk checkbox is changed, all the checkboxes in the tables are changed accordingly.
	 * When the shift-button is pressed while changing the bulk checkbox the checkboxes in the table are inverted.
	 *
	 * This event needs to be delegated. Ticket #37973.
	 *
	 * @param {Event} event The event object.
	 *
	 * @returns {boolean}
	 */
	$body.on( 'click.wp-toggle-checkboxes', 'thead .check-column :checkbox, tfoot .check-column :checkbox', function( event ) {
		var $this = $(this),
			$table = $this.closest( 'table' ),
			controlChecked = $this.prop('checked'),
			toggle = event.shiftKey || $this.data('wp-toggle');

$table.children( 'tbody' ).filter(':visible')
			.children().children('.check-column').find(':checkbox')
			/**
			 * Updates the checked state on the checkbox in the table.
			 *
			 * @returns {boolean} True checks the checkbox, False unchecks the checkbox.
			 */
			.prop('checked', function() {
				if ( $(this).is(':hidden,:disabled') ) {
					return false;
				}

if ( toggle ) {
					return ! $(this).prop( 'checked' );
				} else if ( controlChecked ) {
					return true;
				}

return false;
			});

$table.children('thead,  tfoot').filter(':visible')
			.children().children('.check-column').find(':checkbox')

/**
			 * Syncs the bulk checkboxes on the top and bottom of the table.
			 *
			 * @returns {boolean} True checks the checkbox, False unchecks the checkbox.
			 */
			.prop('checked', function() {
				if ( toggle ) {
					return false;
				} else if ( controlChecked ) {
					return true;
				}

return false;
			});
	});

/**
	 * Shows row actions on focus of its parent container element or any other elements contained within.
	 *
	 * @returns {void}
	 */
	$( '#wpbody-content' ).on({
		focusin: function() {
			clearTimeout( transitionTimeout );
			focusedRowActions = $( this ).find( '.row-actions' );
			// transitionTimeout is necessary for Firefox, but Chrome won't remove the CSS class without a little help.
			$( '.row-actions' ).not( this ).removeClass( 'visible' );
			focusedRowActions.addClass( 'visible' );
		},
		focusout: function() {
			// Tabbing between post title and .row-actions links needs a brief pause, otherwise
			// the .row-actions div gets hidden in transit in some browsers (ahem, Firefox).
			transitionTimeout = setTimeout( function() {
				focusedRowActions.removeClass( 'visible' );
			}, 30 );
		}
	}, '.has-row-actions' );

// Toggle list table rows on small screens
	$( 'tbody' ).on( 'click', '.toggle-row', function() {
		$( this ).closest( 'tr' ).toggleClass( 'is-expanded' );
	});

$('#default-password-nag-no').click( function() {
		setUserSetting('default_password_nag', 'hide');
		$('div.default-password-nag').hide();
		return false;
	});

/**
	 * Handles tab keypresses in theme and plugin editor textareas.
	 *
	 * @param {Event} e The event object.
	 *
	 * @returns {void}
	 */
	$('#newcontent').bind('keydown.wpevent_InsertTab', function(e) {
		var el = e.target, selStart, selEnd, val, scroll, sel;

// After pressing escape key (keyCode: 27), the tab key should tab out of the textarea.
		if ( e.keyCode == 27 ) {
			// when pressing Escape: Opera 12 and 27 blur form fields, IE 8 clears them
			e.preventDefault();
			$(el).data('tab-out', true);
			return;
		}

// Only listen for plain tab key (keyCode: 9) without any modifiers.
		if ( e.keyCode != 9 || e.ctrlKey || e.altKey || e.shiftKey )
			return;

// After tabbing out, reset it so next time the tab key can be used again.
		if ( $(el).data('tab-out') ) {
			$(el).data('tab-out', false);
			return;
		}

selStart = el.selectionStart;
		selEnd = el.selectionEnd;
		val = el.value;

// If any text is selected, replace the selection with a tab character.
		if ( document.selection ) {
			el.focus();
			sel = document.selection.createRange();
			sel.text = '\t';
		} else if ( selStart >= 0 ) {
			scroll = this.scrollTop;
			el.value = val.substring(0, selStart).concat('\t', val.substring(selEnd) );
			el.selectionStart = el.selectionEnd = selStart + 1;
			this.scrollTop = scroll;
		}

// Cancel the regular tab functionality, to prevent losing focus of the textarea.
		if ( e.stopPropagation )
			e.stopPropagation();
		if ( e.preventDefault )
			e.preventDefault();
	});

// Reset page number variable for new filters/searches but not for bulk actions. See #17685.
	if ( pageInput.length ) {

/**
		 * Handles pagination variable when filtering the list table.
		 *
		 * Set the pagination argument to the first page when the post-filter form is submitted.
		 * This happens when pressing the 'filter' button on the list table page.
		 *
		 * The pagination argument should not be touched when the bulk action dropdowns are set to do anything.
		 *
		 * The form closest to the pageInput is the post-filter form.
		 *
		 * @returns {void}
		 */
		pageInput.closest('form').submit( function() {
			/*
			 * action = bulk action dropdown at the top of the table
			 * action2 = bulk action dropdow at the bottom of the table
			 */
			if ( $('select[name="action"]').val() == -1 && $('select[name="action2"]').val() == -1 && pageInput.val() == currentPage )
				pageInput.val('1');
		});
	}

/**
	 * Resets the bulk actions when the search button is clicked.
	 *
	 * @returns {void}
	 */
	$('.search-box input[type="search"], .search-box input[type="submit"]').mousedown(function () {
		$('select[name^="action"]').val('-1');
	});

/**
	 * Scrolls into view when focus.scroll-into-view is triggered.
	 *
	 * @param {Event} e The event object.
	 *
	 * @returns {void}
 	 */
	$('#contextual-help-link, #show-settings-link').on( 'focus.scroll-into-view', function(e){
		if ( e.target.scrollIntoView )
			e.target.scrollIntoView(false);
	});

/**
	 * Disables the submit upload buttons when no data is entered.
	 *
	 * @returns {void}
	 */
	(function(){
		var button, input, form = $('form.wp-upload-form');

// Exit when no upload form is found.
		if ( ! form.length )
			return;

button = form.find('input[type="submit"]');
		input = form.find('input[type="file"]');

/**
		 * Determines if any data is entered in any file upload input.
		 *
		 * @since 3.5.0
		 *
		 * @returns {void}
		 */
		function toggleUploadButton() {
			// When no inputs have a value, disable the upload buttons.
			button.prop('disabled', '' === input.map( function() {
				return $(this).val();
			}).get().join(''));
		}

// Update the status initially.
		toggleUploadButton();
		// Update the status when any file input changes.
		input.on('change', toggleUploadButton);
	})();

/**
	 * Pins the menu while distraction-free writing is enabled.
	 *
	 * @param {Event} event Event data.
	 *
	 * @since 4.1.0
	 *
	 * @returns {void}
	 */
	function pinMenu( event ) {
		var windowPos = $window.scrollTop(),
			resizing = ! event || event.type !== 'scroll';

if ( isIOS || isIE8 || $adminmenu.data( 'wp-responsive' ) ) {
			return;
		}

/*
		 * When the menu is higher than the window and smaller than the entire page.
		 * It should be adjusted to be able to see the entire menu.
		 *
		 * Otherwise it can be accessed normally.
		 */
		if ( height.menu + height.adminbar < height.window ||
			height.menu + height.adminbar + 20 > height.wpwrap ) {
			unpinMenu();
			return;
		}

menuIsPinned = true;

// If the menu is higher than the window, compensate on scroll.
		if ( height.menu + height.adminbar > height.window ) {
			// Check for overscrolling, this happens when swiping up at the top of the document in modern browsers.
			if ( windowPos < 0 ) {
				// Stick the menu to the top.
				if ( ! pinnedMenuTop ) {
					pinnedMenuTop = true;
					pinnedMenuBottom = false;

$adminMenuWrap.css({
						position: 'fixed',
						top: '',
						bottom: ''
					});
				}

return;
			} else if ( windowPos + height.window > $document.height() - 1 ) {
				// When overscrolling at the bottom, stick the menu to the bottom.
				if ( ! pinnedMenuBottom ) {
					pinnedMenuBottom = true;
					pinnedMenuTop = false;

$adminMenuWrap.css({
						position: 'fixed',
						top: '',
						bottom: 0
					});
				}

return;
			}

if ( windowPos > lastScrollPosition ) {
				// When a down scroll has been detected.

// If it was pinned to the top, unpin and calculate relative scroll.
				if ( pinnedMenuTop ) {
					pinnedMenuTop = false;
					// Calculate new offset position.
					menuTop = $adminMenuWrap.offset().top - height.adminbar - ( windowPos - lastScrollPosition );

if ( menuTop + height.menu + height.adminbar < windowPos + height.window ) {
						menuTop = windowPos + height.window - height.menu - height.adminbar;
					}

$adminMenuWrap.css({
						position: 'absolute',
						top: menuTop,
						bottom: ''
					});
				} else if ( ! pinnedMenuBottom && $adminMenuWrap.offset().top + height.menu < windowPos + height.window ) {
					// Pin it to the bottom.
					pinnedMenuBottom = true;

$adminMenuWrap.css({
						position: 'fixed',
						top: '',
						bottom: 0
					});
				}
			} else if ( windowPos < lastScrollPosition ) {
				// When a scroll up is detected.

// If it was pinned to the bottom, unpin and calculate relative scroll.
				if ( pinnedMenuBottom ) {
					pinnedMenuBottom = false;

// Calculate new offset position.
					menuTop = $adminMenuWrap.offset().top - height.adminbar + ( lastScrollPosition - windowPos );

if ( menuTop + height.menu > windowPos + height.window ) {
						menuTop = windowPos;
					}

$adminMenuWrap.css({
						position: 'absolute',
						top: menuTop,
						bottom: ''
					});
				} else if ( ! pinnedMenuTop && $adminMenuWrap.offset().top >= windowPos + height.adminbar ) {

// Pin it to the top.
					pinnedMenuTop = true;

$adminMenuWrap.css({
						position: 'fixed',
						top: '',
						bottom: ''
					});
				}
			} else if ( resizing ) {
				// Window is being resized.

pinnedMenuTop = pinnedMenuBottom = false;

// Calculate the new offset.
				menuTop = windowPos + height.window - height.menu - height.adminbar - 1;

if ( menuTop > 0 ) {
					$adminMenuWrap.css({
						position: 'absolute',
						top: menuTop,
						bottom: ''
					});
				} else {
					unpinMenu();
				}
			}
		}

lastScrollPosition = windowPos;
	}

/**
	 * Determines the height of certain elements.
	 *
	 * @since 4.1.0
	 *
	 * @returns {void}
	 */
	function resetHeights() {
		height = {
			window: $window.height(),
			wpwrap: $wpwrap.height(),
			adminbar: $adminbar.height(),
			menu: $adminMenuWrap.height()
		};
	}

/**
	 * Unpins the menu.
	 *
	 * @since 4.1.0
	 *
	 * @returns {void}
	 */
	function unpinMenu() {
		if ( isIOS || ! menuIsPinned ) {
			return;
		}

pinnedMenuTop = pinnedMenuBottom = menuIsPinned = false;
		$adminMenuWrap.css({
			position: '',
			top: '',
			bottom: ''
		});
	}

/**
	 * Pins and unpins the menu when applicable.
	 *
	 * @since 4.1.0
	 *
	 * @returns {void}
	 */
	function setPinMenu() {
		resetHeights();

if ( $adminmenu.data('wp-responsive') ) {
			$body.removeClass( 'sticky-menu' );
			unpinMenu();
		} else if ( height.menu + height.adminbar > height.window ) {
			pinMenu();
			$body.removeClass( 'sticky-menu' );
		} else {
			$body.addClass( 'sticky-menu' );
			unpinMenu();
		}
	}

if ( ! isIOS ) {
		$window.on( 'scroll.pin-menu', pinMenu );
		$document.on( 'tinymce-editor-init.pin-menu', function( event, editor ) {
			editor.on( 'wp-autoresize', resetHeights );
		});
	}

/**
	 * Changes the sortables and responsiveness of metaboxes.
	 *
	 * @since 3.8.0
	 *
	 *@returns {void}
	 */
	window.wpResponsive = {

/**
		 * Initializes the wpResponsive object.
		 *
		 * @since 3.8.0
		 *
		 * @returns {void}
		 */
		init: function() {
			var self = this;

// Modify functionality based on custom activate/deactivate event
			$document.on( 'wp-responsive-activate.wp-responsive', function() {
				self.activate();
			}).on( 'wp-responsive-deactivate.wp-responsive', function() {
				self.deactivate();
			});

$( '#site-admin-bar-menu-toggle a' ).attr( 'aria-expanded', 'false' );

// Toggle sidebar when toggle is clicked.
			$( '#site-admin-bar-menu-toggle' ).on( 'click.wp-responsive', function( event ) {
				event.preventDefault();

// close any open toolbar submenus.
				$adminbar.find( '.hover' ).removeClass( 'hover' );

$wpwrap.toggleClass( 'wp-responsive-open' );
				if ( $wpwrap.hasClass( 'wp-responsive-open' ) ) {
					$(this).find('a').attr( 'aria-expanded', 'true' );
					$( '#adminmenu a:first' ).focus();
				} else {
					$(this).find('a').attr( 'aria-expanded', 'false' );
				}
			} );

// Add menu events.
			$adminmenu.on( 'click.wp-responsive', 'li.wp-has-submenu > a', function( event ) {
				if ( ! $adminmenu.data('wp-responsive') ) {
					return;
				}

$( this ).parent( 'li' ).toggleClass( 'selected' );
				event.preventDefault();
			});

self.trigger();
			$document.on( 'wp-window-resized.wp-responsive', $.proxy( this.trigger, this ) );

// This needs to run later as UI Sortable may be initialized later on $(document).ready().
			$window.on( 'load.wp-responsive', function() {
				var width = navigator.userAgent.indexOf('AppleWebKit/') > -1 ? $window.width() : window.innerWidth;

if ( width <= 782 ) {
					self.disableSortables();
				}
			});
		},

/**
		 * Changes properties of body and admin menu.
		 *
		 * Pins and unpins the menu and adds the auto-fold class to the body.
		 * Makes the admin menu responsive and disables the metabox sortables.
		 *
		 * @since 3.8.0
		 *
		 * @returns {void}
		 */
		activate: function() {
			setPinMenu();

if ( ! $body.hasClass( 'auto-fold' ) ) {
				$body.addClass( 'auto-fold' );
			}

$adminmenu.data( 'wp-responsive', 1 );
			this.disableSortables();
		},

/**
		 * Changes properties of admin menu and enables metabox sortables.
		 *
		 * Pin and unpin the menu.
		 * Removes the responsiveness of the admin menu and enables the metabox sortables.
		 *
		 * @since 3.8.0
		 *
		 * @returns {void}
		 */
		deactivate: function() {
			setPinMenu();
			$adminmenu.removeData('wp-responsive');
			this.enableSortables();
		},

/**
		 * Sets the responsiveness and enables the overlay based on the viewport width.
		 *
		 * @since 3.8.0
		 *
		 * @returns {void}
		 */
		trigger: function() {
			var viewportWidth = getViewportWidth();

// Exclude IE < 9, it doesn't support @media CSS rules.
			if ( ! viewportWidth ) {
				return;
			}

if ( viewportWidth <= 782 ) {
				if ( ! wpResponsiveActive ) {
					$document.trigger( 'wp-responsive-activate' );
					wpResponsiveActive = true;
				}
			} else {
				if ( wpResponsiveActive ) {
					$document.trigger( 'wp-responsive-deactivate' );
					wpResponsiveActive = false;
				}
			}

if ( viewportWidth <= 480 ) {
				this.enableOverlay();
			} else {
				this.disableOverlay();
			}
		},

/**
		 * Inserts a responsive overlay and toggles the window.
		 *
		 * @since 3.8.0
		 *
		 * @returns {void}
		 */
		enableOverlay: function() {
			if ( $overlay.length === 0 ) {
				$overlay = $( '<div id="wp-responsive-overlay"></div>' )
					.insertAfter( '#wpcontent' )
					.hide()
					.on( 'click.wp-responsive', function() {
						$toolbar.find( '.menupop.hover' ).removeClass( 'hover' );
						$( this ).hide();
					});
			}

$toolbarPopups.on( 'click.wp-responsive', function() {
				$overlay.show();
			});
		},

/**
		 * Disables the responsive overlay and removes the overlay.
		 *
		 * @since 3.8.0
		 *
		 * @returns {void}
		 */
		disableOverlay: function() {
			$toolbarPopups.off( 'click.wp-responsive' );
			$overlay.hide();
		},

/**
		 * Disables sortables.
		 *
		 * @since 3.8.0
		 *
		 * @returns {void}
		 */
		disableSortables: function() {
			if ( $sortables.length ) {
				try {
					$sortables.sortable( 'disable' );
				} catch ( e ) {}
			}
		},

/**
		 * Enables sortables.
		 *
		 * @since 3.8.0
		 *
		 * @returns {void}
		 */
		enableSortables: function() {
			if ( $sortables.length ) {
				try {
					$sortables.sortable( 'enable' );
				} catch ( e ) {}
			}
		}
	};

/**
	 * Add an ARIA role `button` to elements that behave like UI controls when JavaScript is on.
	 *
	 * @since 4.5.0
	 *
	 * @returns {void}
	 */
	function aria_button_if_js() {
		$( '.aria-button-if-js' ).attr( 'role', 'button' );
	}

$( document ).ajaxComplete( function() {
		aria_button_if_js();
	});

/**
	 * Get the viewport width.
	 *
	 * @since 4.7.0
	 *
	 * @returns {number|boolean} The current viewport width or false if the
	 *                           browser doesn't support innerWidth (IE < 9).
	 */
	function getViewportWidth() {
		var viewportWidth = false;

if ( window.innerWidth ) {
			// On phones, window.innerWidth is affected by zooming.
			viewportWidth = Math.max( window.innerWidth, document.documentElement.clientWidth );
		}

return viewportWidth;
	}

/**
	 * Sets the admin menu collapsed/expanded state.
	 *
	 * Sets the global variable `menuState` and triggers a custom event passing
	 * the current menu state.
	 *
	 * @since 4.7.0
	 *
	 * @returns {void}
	 */
	function setMenuState() {
		var viewportWidth = getViewportWidth() || 961;

if ( viewportWidth <= 782  ) {
			menuState = 'responsive';
		} else if ( $body.hasClass( 'folded' ) || ( $body.hasClass( 'auto-fold' ) && viewportWidth <= 960 && viewportWidth > 782 ) ) {
			menuState = 'folded';
		} else {
			menuState = 'open';
		}

$document.trigger( 'wp-menu-state-set', { state: menuState } );
	}

// Set the menu state when the window gets resized.
	$document.on( 'wp-window-resized.set-menu-state', setMenuState );

/**
	 * Sets ARIA attributes on the collapse/expand menu button.
	 *
	 * When the admin menu is open or folded, updates the `aria-expanded` and
	 * `aria-label` attributes of the button to give feedback to assistive
	 * technologies. In the responsive view, the button is always hidden.
	 *
	 * @since 4.7.0
	 *
	 * @returns {void}
	 */
	$document.on( 'wp-menu-state-set wp-collapse-menu', function( event, eventData ) {
		var $collapseButton = $( '#collapse-button' ),
			ariaExpanded = 'true',
			ariaLabelText = commonL10n.collapseMenu;

if ( 'folded' === eventData.state ) {
			ariaExpanded = 'false';
			ariaLabelText = commonL10n.expandMenu;
		}

$collapseButton.attr({
			'aria-expanded': ariaExpanded,
			'aria-label': ariaLabelText
		});
	});

window.wpResponsive.init();
	setPinMenu();
	setMenuState();
	currentMenuItemHasPopup();
	makeNoticesDismissible();
	aria_button_if_js();

$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 );

// Set initial focus on a specific element.
	$( '.wp-initial-focus' ).focus();

// Toggle update details on update-core.php.
	$body.on( 'click', '.js-update-details-toggle', function() {
		var $updateNotice = $( this ).closest( '.js-update-details' ),
			$progressDiv = $( '#' + $updateNotice.data( 'update-details' ) );

/*
		 * When clicking on "Show details" move the progress div below the update
		 * notice. Make sure it gets moved just the first time.
		 */
		if ( ! $progressDiv.hasClass( 'update-details-moved' ) ) {
			$progressDiv.insertAfter( $updateNotice ).addClass( 'update-details-moved' );
		}

// Toggle the progress div visibility.
		$progressDiv.toggle();
		// Toggle the Show Details button expanded state.
		$( this ).attr( 'aria-expanded', $progressDiv.is( ':visible' ) );
	});
});

// Fire a custom jQuery event at the end of window resize.
( function() {
	var timeout;

/**
	 * Triggers the WP window-resize event.
	 *
	 * @since 3.8.0
	 *
	 * @returns {void}
	 */
	function triggerEvent() {
		$document.trigger( 'wp-window-resized' );
	}

/**
	 * Fires the trigger event again after 200 ms.
	 *
	 * @since 3.8.0
	 *
	 * @returns {void}
	 */
	function fireOnce() {
		window.clearTimeout( timeout );
		timeout = window.setTimeout( triggerEvent, 200 );
	}

$window.on( 'resize.wp-fire-once', fireOnce );
}());

// Make Windows 8 devices play along nicely.
(function(){
	if ( '-ms-user-select' in document.documentElement.style && navigator.userAgent.match(/IEMobile\/10\.0/) ) {
		var msViewportStyle = document.createElement( 'style' );
		msViewportStyle.appendChild(
			document.createTextNode( '@-ms-viewport{width:auto!important}' )
		);
		document.getElementsByTagName( 'head' )[0].appendChild( msViewportStyle );
	}
})();

}( jQuery, window ));

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