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

/* global setUserSetting, ajaxurl, 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 ),
__ = wp.i18n.__,
sprintf = wp.i18n.sprintf;

/**
* Throws an error for a deprecated property.
*
* @since 5.5.1
*
* @param {string} propName The property that was used.
* @param {string} version The version of WordPress that deprecated the property.
* @param {string} replacement The property that should have been used.
*/
function deprecatedProperty( propName, version, replacement ) {
var message;

if ( 'undefined' !== typeof replacement ) {
message = sprintf(
/* translators: 1: Deprecated property name, 2: Version number, 3: Alternative property name. */
__( '%1$s is deprecated since version %2$s! Use %3$s instead.' ),
propName,
version,
replacement
);
} else {
message = sprintf(
/* translators: 1: Deprecated property name, 2: Version number. */
__( '%1$s is deprecated since version %2$s with no alternative available.' ),
propName,
version
);
}

window.console.warn( message );
}

/**
* Deprecate all properties on an object.
*
* @since 5.5.1
* @since 5.6.0 Added the `version` parameter.
*
* @param {string} name The name of the object, i.e. commonL10n.
* @param {object} l10nObject The object to deprecate the properties on.
* @param {string} version The version of WordPress that deprecated the property.
*
* @return {object} The object with all its properties deprecated.
*/
function deprecateL10nObject( name, l10nObject, version ) {
var deprecatedObject = {};

Object.keys( l10nObject ).forEach( function( key ) {
var prop = l10nObject[ key ];
var propName = name + '.' + key;

if ( 'object' === typeof prop ) {
Object.defineProperty( deprecatedObject, key, { get: function() {
deprecatedProperty( propName, version, prop.alternative );
return prop.func();
} } );
} else {
Object.defineProperty( deprecatedObject, key, { get: function() {
deprecatedProperty( propName, version, 'wp.i18n' );
return prop;
} } );
}
} );

return deprecatedObject;
}

window.wp.deprecateL10nObject = deprecateL10nObject;

/**
* Removed in 5.5.0, needed for back-compatibility.
*
* @since 2.6.0
* @deprecated 5.5.0
*/
window.commonL10n = window.commonL10n || {
warnDelete: '',
dismiss: '',
collapseMenu: '',
expandMenu: ''
};

window.commonL10n = deprecateL10nObject( 'commonL10n', window.commonL10n, '5.5.0' );

/**
* Removed in 5.5.0, needed for back-compatibility.
*
* @since 3.3.0
* @deprecated 5.5.0
*/
window.wpPointerL10n = window.wpPointerL10n || {
dismiss: ''
};

window.wpPointerL10n = deprecateL10nObject( 'wpPointerL10n', window.wpPointerL10n, '5.5.0' );

/**
* Removed in 5.5.0, needed for back-compatibility.
*
* @since 4.3.0
* @deprecated 5.5.0
*/
window.userProfileL10n = window.userProfileL10n || {
warn: '',
warnWeak: '',
show: '',
hide: '',
cancel: '',
ariaShow: '',
ariaHide: ''
};

window.userProfileL10n = deprecateL10nObject( 'userProfileL10n', window.userProfileL10n, '5.5.0' );

/**
* Removed in 5.5.0, needed for back-compatibility.
*
* @since 4.9.6
* @deprecated 5.5.0
*/
window.privacyToolsL10n = window.privacyToolsL10n || {
noDataFound: '',
foundAndRemoved: '',
noneRemoved: '',
someNotRemoved: '',
removalError: '',
emailSent: '',
noExportFile: '',
exportError: ''
};

window.privacyToolsL10n = deprecateL10nObject( 'privacyToolsL10n', window.privacyToolsL10n, '5.5.0' );

/**
* Removed in 5.5.0, needed for back-compatibility.
*
* @since 3.6.0
* @deprecated 5.5.0
*/
window.authcheckL10n = {
beforeunload: ''
};

window.authcheckL10n = window.authcheckL10n || deprecateL10nObject( 'authcheckL10n', window.authcheckL10n, '5.5.0' );

/**
* Removed in 5.5.0, needed for back-compatibility.
*
* @since 2.8.0
* @deprecated 5.5.0
*/
window.tagsl10n = {
noPerm: '',
broken: ''
};

window.tagsl10n = window.tagsl10n || deprecateL10nObject( 'tagsl10n', window.tagsl10n, '5.5.0' );

/**
* Removed in 5.5.0, needed for back-compatibility.
*
* @since 2.5.0
* @deprecated 5.5.0
*/
window.adminCommentsL10n = window.adminCommentsL10n || {
hotkeys_highlight_first: {
alternative: 'window.adminCommentsSettings.hotkeys_highlight_first',
func: function() { return window.adminCommentsSettings.hotkeys_highlight_first; }
},
hotkeys_highlight_last: {
alternative: 'window.adminCommentsSettings.hotkeys_highlight_last',
func: function() { return window.adminCommentsSettings.hotkeys_highlight_last; }
},
replyApprove: '',
reply: '',
warnQuickEdit: '',
warnCommentChanges: '',
docTitleComments: '',
docTitleCommentsCount: ''
};

window.adminCommentsL10n = deprecateL10nObject( 'adminCommentsL10n', window.adminCommentsL10n, '5.5.0' );

/**
* Removed in 5.5.0, needed for back-compatibility.
*
* @since 2.5.0
* @deprecated 5.5.0
*/
window.tagsSuggestL10n = window.tagsSuggestL10n || {
tagDelimiter: '',
removeTerm: '',
termSelected: '',
termAdded: '',
termRemoved: ''
};

window.tagsSuggestL10n = deprecateL10nObject( 'tagsSuggestL10n', window.tagsSuggestL10n, '5.5.0' );

/**
* Removed in 5.5.0, needed for back-compatibility.
*
* @since 3.5.0
* @deprecated 5.5.0
*/
window.wpColorPickerL10n = window.wpColorPickerL10n || {
clear: '',
clearAriaLabel: '',
defaultString: '',
defaultAriaLabel: '',
pick: '',
defaultLabel: ''
};

window.wpColorPickerL10n = deprecateL10nObject( 'wpColorPickerL10n', window.wpColorPickerL10n, '5.5.0' );

/**
* Removed in 5.5.0, needed for back-compatibility.
*
* @since 2.7.0
* @deprecated 5.5.0
*/
window.attachMediaBoxL10n = window.attachMediaBoxL10n || {
error: ''
};

window.attachMediaBoxL10n = deprecateL10nObject( 'attachMediaBoxL10n', window.attachMediaBoxL10n, '5.5.0' );

/**
* Removed in 5.5.0, needed for back-compatibility.
*
* @since 2.5.0
* @deprecated 5.5.0
*/
window.postL10n = window.postL10n || {
ok: '',
cancel: '',
publishOn: '',
publishOnFuture: '',
publishOnPast: '',
dateFormat: '',
showcomm: '',
endcomm: '',
publish: '',
schedule: '',
update: '',
savePending: '',
saveDraft: '',
'private': '',
'public': '',
publicSticky: '',
password: '',
privatelyPublished: '',
published: '',
saveAlert: '',
savingText: '',
permalinkSaved: ''
};

window.postL10n = deprecateL10nObject( 'postL10n', window.postL10n, '5.5.0' );

/**
* Removed in 5.5.0, needed for back-compatibility.
*
* @since 2.7.0
* @deprecated 5.5.0
*/
window.inlineEditL10n = window.inlineEditL10n || {
error: '',
ntdeltitle: '',
notitle: '',
comma: '',
saved: ''
};

window.inlineEditL10n = deprecateL10nObject( 'inlineEditL10n', window.inlineEditL10n, '5.5.0' );

/**
* Removed in 5.5.0, needed for back-compatibility.
*
* @since 2.7.0
* @deprecated 5.5.0
*/
window.plugininstallL10n = window.plugininstallL10n || {
plugin_information: '',
plugin_modal_label: '',
ays: ''
};

window.plugininstallL10n = deprecateL10nObject( 'plugininstallL10n', window.plugininstallL10n, '5.5.0' );

/**
* Removed in 5.5.0, needed for back-compatibility.
*
* @since 3.0.0
* @deprecated 5.5.0
*/
window.navMenuL10n = window.navMenuL10n || {
noResultsFound: '',
warnDeleteMenu: '',
saveAlert: '',
untitled: ''
};

window.navMenuL10n = deprecateL10nObject( 'navMenuL10n', window.navMenuL10n, '5.5.0' );

/**
* Removed in 5.5.0, needed for back-compatibility.
*
* @since 2.5.0
* @deprecated 5.5.0
*/
window.commentL10n = window.commentL10n || {
submittedOn: '',
dateFormat: ''
};

window.commentL10n = deprecateL10nObject( 'commentL10n', window.commentL10n, '5.5.0' );

/**
* Removed in 5.5.0, needed for back-compatibility.
*
* @since 2.9.0
* @deprecated 5.5.0
*/
window.setPostThumbnailL10n = window.setPostThumbnailL10n || {
setThumbnail: '',
saving: '',
error: '',
done: ''
};

window.setPostThumbnailL10n = deprecateL10nObject( 'setPostThumbnailL10n', window.setPostThumbnailL10n, '5.5.0' );

/**
* Removed in 6.5.0, needed for back-compatibility.
*
* @since 4.5.0
* @deprecated 6.5.0
*/
window.uiAutocompleteL10n = window.uiAutocompleteL10n || {
noResults: '',
oneResult: '',
manyResults: '',
itemSelected: ''
};

window.uiAutocompleteL10n = deprecateL10nObject( 'uiAutocompleteL10n', window.uiAutocompleteL10n, '6.5.0' );

/**
* 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
*
* @return {void}
*/
init : function() {
var that = this;
$('.hide-column-tog', '#adv-settings').on( '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
*
* @return {void}
*/
saveManageColumnsState : function() {
var hidden = this.hidden();
$.post(
ajaxurl,
{
action: 'hidden-columns',
hidden: hidden,
screenoptionnonce: $('#screenoptionnonce').val(),
page: pagenow
},
function() {
wp.a11y.speak( __( 'Screen Options updated.' ) );
}
);
},

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

/**
* Gets all hidden columns.
*
* @since 3.0.0
*
* @return {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
*
* @return {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 {number} 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());
}
};

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

/**
* Validates that the required form fields are not empty.
*
* @since 2.9.0
*
* @param {jQuery} form The form to validate.
*
* @return {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' )
.on( '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}}
*
* @return {void}
*/
window.showNotice = {

/**
* Shows a delete confirmation pop-up message.
*
* @since 2.7.0
*
* @return {boolean} Returns true if the message is confirmed.
*/
warn : function() {
if ( confirm( __( 'You are about to permanently delete these items from your site.\nThis action cannot be undone.\n\'Cancel\' to stop, \'OK\' to delete.' ) ) ) {
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}}
*
* @return {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
*
* @return {void}
*/
init: function() {
this.element = $('#screen-meta');
this.toggles = $( '#screen-meta-links' ).find( '.show-settings' );
this.page = $('#wpcontent');

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

/**
* Toggles the screen meta options panel.
*
* @since 3.2.0
*
* @return {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.
*
* @return {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
*
* @return {void}
*/
panel.slideDown( 'fast', function() {
panel.removeClass( 'hidden' ).trigger( '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.
*
* @return {void}
*/
close: function( panel, button ) {
/**
* Hides the screen meta options panel.
*
* @since 3.2.0
*
* @return {void}
*/
panel.slideUp( 'fast', function() {
button.removeClass( 'screen-meta-active' ).attr( 'aria-expanded', false );
$('.screen-meta-toggle').css('visibility', '');
panel.parent().hide();
panel.addClass( 'hidden' );
});

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

/**
* Initializes the help tabs in the help panel.
*
* @param {Event} e The event object.
*
* @return {void}
*/
$('.contextual-help-tabs').on( 'click', 'a', 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,
newSelectionStart;

if ( $( this ).hasClass( 'active' ) ) {
textToAnnounce = $( this ).attr( 'data-removed' );
} else {
textToAnnounce = $( this ).attr( 'data-added' );
}

// 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.trigger( 'focus' );
}
} );

$( 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,
$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.
*
* @return {void}
*/
$adminmenu.on('click.wp-submenu-head', '.wp-submenu-head', function(e){
$(e.target).parent().siblings('a').get(0).click();
});

/**
* Collapses the admin menu.
*
* @return {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 } );
});

/**
* Ensures an admin submenu is within the visual viewport.
*
* @since 4.1.0
*
* @param {jQuery} $menuItem The parent menu item containing the submenu.
*
* @return {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 && $('#wp-admin-bar-menu-toggle').is(':hidden') ) {
$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.
*
* @return {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.
*
* @return {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.
*
* @return {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.
*
* @return {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.
*
* @return {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.
*
* @return {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.
*
* @return {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
*
* @return {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>' );

if ( $el.find( '.notice-dismiss' ).length ) {
return;
}

// Ensure plain text.
$button.find( '.screen-reader-text' ).text( __( 'Dismiss this notice.' ) );
$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 wp-notice-added', makeNoticesDismissible );

// Init screen meta.
screenMeta.init();

/**
* Checks a checkbox.
*
* This event needs to be delegated. Ticket #37973.
*
* @return {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('tr').find(':checkbox').filter(':visible:enabled').not(':checked');

/**
* Determines if all checkboxes are checked.
*
* @return {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.
*
* @return {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.
*
* @return {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.
*
* @return {boolean} True checks the checkbox, False unchecks the checkbox.
*/
.prop('checked', function() {
if ( toggle ) {
return false;
} else if ( controlChecked ) {
return true;
}

return false;
});
});

/**
* Marries a secondary control to its primary control.
*
* @param {jQuery} topSelector The top selector element.
* @param {jQuery} topSubmit The top submit element.
* @param {jQuery} bottomSelector The bottom selector element.
* @param {jQuery} bottomSubmit The bottom submit element.
* @return {void}
*/
function marryControls( topSelector, topSubmit, bottomSelector, bottomSubmit ) {
/**
* Updates the primary selector when the secondary selector is changed.
*
* @since 5.7.0
*
* @return {void}
*/
function updateTopSelector() {
topSelector.val($(this).val());
}
bottomSelector.on('change', updateTopSelector);

/**
* Updates the secondary selector when the primary selector is changed.
*
* @since 5.7.0
*
* @return {void}
*/
function updateBottomSelector() {
bottomSelector.val($(this).val());
}
topSelector.on('change', updateBottomSelector);

/**
* Triggers the primary submit when then secondary submit is clicked.
*
* @since 5.7.0
*
* @return {void}
*/
function triggerSubmitClick(e) {
e.preventDefault();
e.stopPropagation();

topSubmit.trigger('click');
}
bottomSubmit.on('click', triggerSubmitClick);
}

// Marry the secondary "Bulk actions" controls to the primary controls:
marryControls( $('#bulk-action-selector-top'), $('#doaction'), $('#bulk-action-selector-bottom'), $('#doaction2') );

// Marry the secondary "Change role to" controls to the primary controls:
marryControls( $('#new_role'), $('#changeit'), $('#new_role2'), $('#changeit2') );

var addAdminNotice = function( data ) {
var $notice = $( data.selector ),
$headerEnd = $( '.wp-header-end' ),
type,
dismissible,
$adminNotice;

delete data.selector;

dismissible = ( data.dismissible && data.dismissible === true ) ? ' is-dismissible' : '';
type = ( data.type ) ? data.type : 'info';

$adminNotice = '<div id="' + data.id + '" class="notice notice-' + data.type + dismissible + '"><p>' + data.message + '</p></div>';

// Check if this admin notice already exists.
if ( ! $notice.length ) {
$notice = $( '#' + data.id );
}

if ( $notice.length ) {
$notice.replaceWith( $adminNotice );
} else if ( $headerEnd.length ) {
$headerEnd.after( $adminNotice );
} else {
if ( 'customize' === pagenow ) {
$( '.customize-themes-notifications' ).append( $adminNotice );
} else {
$( '.wrap' ).find( '> h1' ).after( $adminNotice );
}
}

$document.trigger( 'wp-notice-added' );
};

$( '.bulkactions' ).parents( 'form' ).on( 'submit', function( event ) {
var form = this,
submitterName = event.originalEvent && event.originalEvent.submitter ? event.originalEvent.submitter.name : false,
currentPageSelector = form.querySelector( '#current-page-selector' );

if ( currentPageSelector && currentPageSelector.defaultValue !== currentPageSelector.value ) {
return; // Pagination form submission.
}

// Observe submissions from posts lists for 'bulk_action' or users lists for 'new_role'.
var bulkFieldRelations = {
'bulk_action' : 'action',
'changeit' : 'new_role'
};
if ( ! Object.keys( bulkFieldRelations ).includes( submitterName ) ) {
return;
}

var values = new FormData(form);
var value = values.get( bulkFieldRelations[ submitterName ] ) || '-1';

// Check that the action is not the default one.
if ( value !== '-1' ) {
// Check that at least one item is selected.
var itemsSelected = form.querySelectorAll( '.wp-list-table tbody .check-column input[type="checkbox"]:checked' );

if ( itemsSelected.length > 0 ) {
return;
}
}
event.preventDefault();
event.stopPropagation();
$( 'html, body' ).animate( { scrollTop: 0 } );

var errorMessage = __( 'Please select at least one item to perform this action on.' );
addAdminNotice( {
id: 'no-items-selected',
type: 'error',
message: errorMessage,
dismissible: true,
} );

wp.a11y.speak( errorMessage );
});

/**
* Shows row actions on focus of its parent container element or any other elements contained within.
*
* @return {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 );
}
}, '.table-view-list .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').on( 'click', function() {
setUserSetting('default_password_nag', 'hide');
$('div.default-password-nag').hide();
return false;
});

/**
* Handles tab keypresses in theme and plugin file editor textareas.
*
* @param {Event} e The event object.
*
* @return {void}
*/
$('#newcontent').on('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.
*
* @return {void}
*/
pageInput.closest('form').on( 'submit', function() {
/*
* action = bulk action dropdown at the top of the table
*/
if ( $('select[name="action"]').val() == -1 && pageInput.val() == currentPage )
pageInput.val('1');
});
}

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

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

/**
* Disables the submit upload buttons when no data is entered.
*
* @return {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
*
* @return {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
*
* @return {void}
*/
function pinMenu( event ) {
var windowPos = $window.scrollTop(),
resizing = ! event || event.type !== 'scroll';

if ( isIOS || $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
*
* @return {void}
*/
function resetHeights() {
height = {
window: $window.height(),
wpwrap: $wpwrap.height(),
adminbar: $adminbar.height(),
menu: $adminMenuWrap.height()
};
}

/**
* Unpins the menu.
*
* @since 4.1.0
*
* @return {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
*
* @return {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
*
* @return {void}
*/
window.wpResponsive = {

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

this.maybeDisableSortables = this.maybeDisableSortables.bind( this );

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

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

// Toggle sidebar when toggle is clicked.
$( '#wp-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' ).trigger( 'focus' );
} else {
$(this).find('a').attr( 'aria-expanded', 'false' );
}
} );

// Close sidebar when target moves outside of toggle and sidebar.
$( document ).on( 'click', function( event ) {
if ( ! $wpwrap.hasClass( 'wp-responsive-open' ) || ! document.hasFocus() ) {
return;
}

var focusIsInToggle = $.contains( $( '#wp-admin-bar-menu-toggle' )[0], event.target );
var focusIsInSidebar = $.contains( $( '#adminmenuwrap' )[0], event.target );

if ( ! focusIsInToggle && ! focusIsInSidebar ) {
$( '#wp-admin-bar-menu-toggle' ).trigger( 'click.wp-responsive' );
}
} );

// Close sidebar when a keypress completes outside of toggle and sidebar.
$( document ).on( 'keyup', function( event ) {
var toggleButton = $( '#wp-admin-bar-menu-toggle' )[0];
if ( ! $wpwrap.hasClass( 'wp-responsive-open' ) ) {
return;
}
if ( 27 === event.keyCode ) {
$( toggleButton ).trigger( 'click.wp-responsive' );
$( toggleButton ).find( 'a' ).trigger( 'focus' );
} else {
if ( 9 === event.keyCode ) {
var sidebar = $( '#adminmenuwrap' )[0];
var focusedElement = event.relatedTarget || document.activeElement;
// A brief delay is required to allow focus to switch to another element.
setTimeout( function() {
var focusIsInToggle = $.contains( toggleButton, focusedElement );
var focusIsInSidebar = $.contains( sidebar, focusedElement );

if ( ! focusIsInToggle && ! focusIsInSidebar ) {
$( toggleButton ).trigger( 'click.wp-responsive' );
}
}, 10 );
}
}
});

// Add menu events.
$adminmenu.on( 'click.wp-responsive', 'li.wp-has-submenu > a', function( event ) {
if ( ! $adminmenu.data('wp-responsive') ) {
return;
}
let state = ( 'false' === $( this ).attr( 'aria-expanded' ) ) ? 'true' : 'false';
$( this ).parent( 'li' ).toggleClass( 'selected' );
$( this ).attr( 'aria-expanded', state );
$( this ).trigger( 'focus' );
event.preventDefault();
});

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

// This needs to run later as UI Sortable may be initialized when the document is ready.
$window.on( 'load.wp-responsive', this.maybeDisableSortables );
$document.on( 'postbox-toggled', this.maybeDisableSortables );

// When the screen columns are changed, potentially disable sortables.
$( '#screen-options-wrap input' ).on( 'click', this.maybeDisableSortables );
},

/**
* Disable sortables if there is only one metabox, or the screen is in one column mode. Otherwise, enable sortables.
*
* @since 5.3.0
*
* @return {void}
*/
maybeDisableSortables: function() {
var width = navigator.userAgent.indexOf('AppleWebKit/') > -1 ? $window.width() : window.innerWidth;

if (
( width <= 782 ) ||
( 1 >= $sortables.find( '.ui-sortable-handle:visible' ).length && jQuery( '.columns-prefs-1 input' ).prop( 'checked' ) )
) {
this.disableSortables();
} else {
this.enableSortables();
}
},

/**
* 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
*
* @return {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
*
* @return {void}
*/
deactivate: function() {
setPinMenu();
$adminmenu.removeData('wp-responsive');

this.maybeDisableSortables();
},

/**
* Toggles the aria-haspopup attribute for the responsive admin menu.
*
* The aria-haspopup attribute is only necessary for the responsive menu.
* See ticket https://core.trac.wordpress.org/ticket/43095
*
* @since 6.6.0
*
* @param {string} action Whether to add or remove the aria-haspopup attribute.
*
* @return {void}
*/
toggleAriaHasPopup: function( action ) {
var elements = $adminmenu.find( '[data-ariahaspopup]' );

if ( action === 'add' ) {
elements.each( function() {
$( this ).attr( 'aria-haspopup', 'menu' ).attr( 'aria-expanded', 'false' );
} );

return;
}

elements.each( function() {
$( this ).removeAttr( 'aria-haspopup' ).removeAttr( 'aria-expanded' );
} );
},

/**
* Sets the responsiveness and enables the overlay based on the viewport width.
*
* @since 3.8.0
*
* @return {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();
}

this.maybeDisableSortables();
},

/**
* Inserts a responsive overlay and toggles the window.
*
* @since 3.8.0
*
* @return {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
*
* @return {void}
*/
disableOverlay: function() {
$toolbarPopups.off( 'click.wp-responsive' );
$overlay.hide();
},

/**
* Disables sortables.
*
* @since 3.8.0
*
* @return {void}
*/
disableSortables: function() {
if ( $sortables.length ) {
try {
$sortables.sortable( 'disable' );
$sortables.find( '.ui-sortable-handle' ).addClass( 'is-non-sortable' );
} catch ( e ) {}
}
},

/**
* Enables sortables.
*
* @since 3.8.0
*
* @return {void}
*/
enableSortables: function() {
if ( $sortables.length ) {
try {
$sortables.sortable( 'enable' );
$sortables.find( '.ui-sortable-handle' ).removeClass( 'is-non-sortable' );
} catch ( e ) {}
}
}
};

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

$( document ).on( 'ajaxComplete', function() {
aria_button_if_js();
});

/**
* Get the viewport width.
*
* @since 4.7.0
*
* @return {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
*
* @return {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
*
* @return {void}
*/
$document.on( 'wp-menu-state-set wp-collapse-menu', function( event, eventData ) {
var $collapseButton = $( '#collapse-button' ),
ariaExpanded, ariaLabelText;

if ( 'folded' === eventData.state ) {
ariaExpanded = 'false';
ariaLabelText = __( 'Expand Main menu' );
} else {
ariaExpanded = 'true';
ariaLabelText = __( 'Collapse Main menu' );
}

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

window.wpResponsive.init();
setPinMenu();
setMenuState();
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' ).trigger( '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' ) );
});
});

/**
* Hides the update button for expired plugin or theme uploads.
*
* On the "Update plugin/theme from uploaded zip" screen, once the upload has expired,
* hides the "Replace current with uploaded" button and displays a warning.
*
* @since 5.5.0
*/
$( function( $ ) {
var $overwrite, $warning;

if ( ! $body.hasClass( 'update-php' ) ) {
return;
}

$overwrite = $( 'a.update-from-upload-overwrite' );
$warning = $( '.update-from-upload-expired' );

if ( ! $overwrite.length || ! $warning.length ) {
return;
}

window.setTimeout(
function() {
$overwrite.hide();
$warning.removeClass( 'hidden' );

if ( window.wp && window.wp.a11y ) {
window.wp.a11y.speak( $warning.text() );
}
},
7140000 // 119 minutes. The uploaded file is deleted after 2 hours.
);
} );

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

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

/**
* Fires the trigger event again after 200 ms.
*
* @since 3.8.0
*
* @return {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 ));

/**
* Freeze animated plugin icons when reduced motion is enabled.
*
* When the user has enabled the 'prefers-reduced-motion' setting, this module
* stops animations for all GIFs on the page with the class 'plugin-icon' or
* plugin icon images in the update plugins table.
*
* @since 6.4.0
*/
(function() {
// Private variables and methods.
var priv = {},
pub = {},
mediaQuery;

// Initialize pauseAll to false; it will be set to true if reduced motion is preferred.
priv.pauseAll = false;
if ( window.matchMedia ) {
mediaQuery = window.matchMedia( '(prefers-reduced-motion: reduce)' );
if ( ! mediaQuery || mediaQuery.matches ) {
priv.pauseAll = true;
}
}

// Method to replace animated GIFs with a static frame.
priv.freezeAnimatedPluginIcons = function( img ) {
var coverImage = function() {
var width = img.width;
var height = img.height;
var canvas = document.createElement( 'canvas' );

// Set canvas dimensions.
canvas.width = width;
canvas.height = height;

// Copy classes from the image to the canvas.
canvas.className = img.className;

// Check if the image is inside a specific table.
var isInsideUpdateTable = img.closest( '#update-plugins-table' );

if ( isInsideUpdateTable ) {
// Transfer computed styles from image to canvas.
var computedStyles = window.getComputedStyle( img ),
i, max;
for ( i = 0, max = computedStyles.length; i < max; i++ ) {
var propName = computedStyles[ i ];
var propValue = computedStyles.getPropertyValue( propName );
canvas.style[ propName ] = propValue;
}
}

// Draw the image onto the canvas.
canvas.getContext( '2d' ).drawImage( img, 0, 0, width, height );

// Set accessibility attributes on canvas.
canvas.setAttribute( 'aria-hidden', 'true' );
canvas.setAttribute( 'role', 'presentation' );

// Insert canvas before the image and set the image to be near-invisible.
var parent = img.parentNode;
parent.insertBefore( canvas, img );
img.style.opacity = 0.01;
img.style.width = '0px';
img.style.height = '0px';
};

// If the image is already loaded, apply the coverImage function.
if ( img.complete ) {
coverImage();
} else {
// Otherwise, wait for the image to load.
img.addEventListener( 'load', coverImage, true );
}
};

// Public method to freeze all relevant GIFs on the page.
pub.freezeAll = function() {
var images = document.querySelectorAll( '.plugin-icon, #update-plugins-table img' );
for ( var x = 0; x < images.length; x++ ) {
if ( /\.gif(?:\?|$)/i.test( images[ x ].src ) ) {
priv.freezeAnimatedPluginIcons( images[ x ] );
}
}
};

// Only run the freezeAll method if the user prefers reduced motion.
if ( true === priv.pauseAll ) {
pub.freezeAll();
}

// Listen for jQuery AJAX events.
( function( $ ) {
if ( window.pagenow === 'plugin-install' ) {
// Only listen for ajaxComplete if this is the plugin-install.php page.
$( document ).ajaxComplete( function( event, xhr, settings ) {

// Check if this is the 'search-install-plugins' request.
if ( settings.data && typeof settings.data === 'string' && settings.data.includes( 'action=search-install-plugins' ) ) {
// Recheck if the user prefers reduced motion.
if ( window.matchMedia ) {
var mediaQuery = window.matchMedia( '(prefers-reduced-motion: reduce)' );
if ( mediaQuery.matches ) {
pub.freezeAll();
}
} else {
// Fallback for browsers that don't support matchMedia.
if ( true === priv.pauseAll ) {
pub.freezeAll();
}
}
}
} );
}
} )( jQuery );

// Expose public methods.
return pub;
})();