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widgets.js
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/**
* @output wp-admin/js/customize-widgets.js
*/
/* global _wpCustomizeWidgetsSettings */
(function( wp, $ ){
if ( ! wp || ! wp.customize ) { return; }
// Set up our namespace...
var api = wp.customize,
l10n;
/**
* @namespace wp.customize.Widgets
*/
api.Widgets = api.Widgets || {};
api.Widgets.savedWidgetIds = {};
// Link settings.
api.Widgets.data = _wpCustomizeWidgetsSettings || {};
l10n = api.Widgets.data.l10n;
/**
* wp.customize.Widgets.WidgetModel
*
* A single widget model.
*
* @class wp.customize.Widgets.WidgetModel
* @augments Backbone.Model
*/
api.Widgets.WidgetModel = Backbone.Model.extend(/** @lends wp.customize.Widgets.WidgetModel.prototype */{
id: null,
temp_id: null,
classname: null,
control_tpl: null,
description: null,
is_disabled: null,
is_multi: null,
multi_number: null,
name: null,
id_base: null,
transport: null,
params: [],
width: null,
height: null,
search_matched: true
});
/**
* wp.customize.Widgets.WidgetCollection
*
* Collection for widget models.
*
* @class wp.customize.Widgets.WidgetCollection
* @augments Backbone.Collection
*/
api.Widgets.WidgetCollection = Backbone.Collection.extend(/** @lends wp.customize.Widgets.WidgetCollection.prototype */{
model: api.Widgets.WidgetModel,
// Controls searching on the current widget collection
// and triggers an update event.
doSearch: function( value ) {
// Don't do anything if we've already done this search.
// Useful because the search handler fires multiple times per keystroke.
if ( this.terms === value ) {
return;
}
// Updates terms with the value passed.
this.terms = value;
// If we have terms, run a search...
if ( this.terms.length > 0 ) {
this.search( this.terms );
}
// If search is blank, set all the widgets as they matched the search to reset the views.
if ( this.terms === '' ) {
this.each( function ( widget ) {
widget.set( 'search_matched', true );
} );
}
},
// Performs a search within the collection.
// @uses RegExp
search: function( term ) {
var match, haystack;
// Escape the term string for RegExp meta characters.
term = term.replace( /[-\/\\^$*+?.()|[\]{}]/g, '\\$&' );
// Consider spaces as word delimiters and match the whole string
// so matching terms can be combined.
term = term.replace( / /g, ')(?=.*' );
match = new RegExp( '^(?=.*' + term + ').+', 'i' );
this.each( function ( data ) {
haystack = [ data.get( 'name' ), data.get( 'description' ) ].join( ' ' );
data.set( 'search_matched', match.test( haystack ) );
} );
}
});
api.Widgets.availableWidgets = new api.Widgets.WidgetCollection( api.Widgets.data.availableWidgets );
/**
* wp.customize.Widgets.SidebarModel
*
* A single sidebar model.
*
* @class wp.customize.Widgets.SidebarModel
* @augments Backbone.Model
*/
api.Widgets.SidebarModel = Backbone.Model.extend(/** @lends wp.customize.Widgets.SidebarModel.prototype */{
after_title: null,
after_widget: null,
before_title: null,
before_widget: null,
'class': null,
description: null,
id: null,
name: null,
is_rendered: false
});
/**
* wp.customize.Widgets.SidebarCollection
*
* Collection for sidebar models.
*
* @class wp.customize.Widgets.SidebarCollection
* @augments Backbone.Collection
*/
api.Widgets.SidebarCollection = Backbone.Collection.extend(/** @lends wp.customize.Widgets.SidebarCollection.prototype */{
model: api.Widgets.SidebarModel
});
api.Widgets.registeredSidebars = new api.Widgets.SidebarCollection( api.Widgets.data.registeredSidebars );
api.Widgets.AvailableWidgetsPanelView = wp.Backbone.View.extend(/** @lends wp.customize.Widgets.AvailableWidgetsPanelView.prototype */{
el: '#available-widgets',
events: {
'input #widgets-search': 'search',
'focus .widget-tpl' : 'focus',
'click .widget-tpl' : '_submit',
'keypress .widget-tpl' : '_submit',
'keydown' : 'keyboardAccessible'
},
// Cache current selected widget.
selected: null,
// Cache sidebar control which has opened panel.
currentSidebarControl: null,
$search: null,
$clearResults: null,
searchMatchesCount: null,
/**
* View class for the available widgets panel.
*
* @constructs wp.customize.Widgets.AvailableWidgetsPanelView
* @augments wp.Backbone.View
*/
initialize: function() {
var self = this;
this.$search = $( '#widgets-search' );
this.$clearResults = this.$el.find( '.clear-results' );
_.bindAll( this, 'close' );
this.listenTo( this.collection, 'change', this.updateList );
this.updateList();
// Set the initial search count to the number of available widgets.
this.searchMatchesCount = this.collection.length;
/*
* If the available widgets panel is open and the customize controls
* are interacted with (i.e. available widgets panel is blurred) then
* close the available widgets panel. Also close on back button click.
*/
$( '#customize-controls, #available-widgets .customize-section-title' ).on( 'click keydown', function( e ) {
var isAddNewBtn = $( e.target ).is( '.add-new-widget, .add-new-widget *' );
if ( $( 'body' ).hasClass( 'adding-widget' ) && ! isAddNewBtn ) {
self.close();
}
} );
// Clear the search results and trigger an `input` event to fire a new search.
this.$clearResults.on( 'click', function() {
self.$search.val( '' ).trigger( 'focus' ).trigger( 'input' );
} );
// Close the panel if the URL in the preview changes.
api.previewer.bind( 'url', this.close );
},
/**
* Performs a search and handles selected widget.
*/
search: _.debounce( function( event ) {
var firstVisible;
this.collection.doSearch( event.target.value );
// Update the search matches count.
this.updateSearchMatchesCount();
// Announce how many search results.
this.announceSearchMatches();
// Remove a widget from being selected if it is no longer visible.
if ( this.selected && ! this.selected.is( ':visible' ) ) {
this.selected.removeClass( 'selected' );
this.selected = null;
}
// If a widget was selected but the filter value has been cleared out, clear selection.
if ( this.selected && ! event.target.value ) {
this.selected.removeClass( 'selected' );
this.selected = null;
}
// If a filter has been entered and a widget hasn't been selected, select the first one shown.
if ( ! this.selected && event.target.value ) {
firstVisible = this.$el.find( '> .widget-tpl:visible:first' );
if ( firstVisible.length ) {
this.select( firstVisible );
}
}
// Toggle the clear search results button.
if ( '' !== event.target.value ) {
this.$clearResults.addClass( 'is-visible' );
} else if ( '' === event.target.value ) {
this.$clearResults.removeClass( 'is-visible' );
}
// Set a CSS class on the search container when there are no search results.
if ( ! this.searchMatchesCount ) {
this.$el.addClass( 'no-widgets-found' );
} else {
this.$el.removeClass( 'no-widgets-found' );
}
}, 500 ),
/**
* Updates the count of the available widgets that have the `search_matched` attribute.
*/
updateSearchMatchesCount: function() {
this.searchMatchesCount = this.collection.where({ search_matched: true }).length;
},
/**
* Sends a message to the aria-live region to announce how many search results.
*/
announceSearchMatches: function() {
var message = l10n.widgetsFound.replace( '%d', this.searchMatchesCount ) ;
if ( ! this.searchMatchesCount ) {
message = l10n.noWidgetsFound;
}
wp.a11y.speak( message );
},
/**
* Changes visibility of available widgets.
*/
updateList: function() {
this.collection.each( function( widget ) {
var widgetTpl = $( '#widget-tpl-' + widget.id );
widgetTpl.toggle( widget.get( 'search_matched' ) && ! widget.get( 'is_disabled' ) );
if ( widget.get( 'is_disabled' ) && widgetTpl.is( this.selected ) ) {
this.selected = null;
}
} );
},
/**
* Highlights a widget.
*/
select: function( widgetTpl ) {
this.selected = $( widgetTpl );
this.selected.siblings( '.widget-tpl' ).removeClass( 'selected' );
this.selected.addClass( 'selected' );
},
/**
* Highlights a widget on focus.
*/
focus: function( event ) {
this.select( $( event.currentTarget ) );
},
/**
* Handles submit for keypress and click on widget.
*/
_submit: function( event ) {
// Only proceed with keypress if it is Enter or Spacebar.
if ( event.type === 'keypress' && ( event.which !== 13 && event.which !== 32 ) ) {
return;
}
this.submit( $( event.currentTarget ) );
},
/**
* Adds a selected widget to the sidebar.
*/
submit: function( widgetTpl ) {
var widgetId, widget, widgetFormControl;
if ( ! widgetTpl ) {
widgetTpl = this.selected;
}
if ( ! widgetTpl || ! this.currentSidebarControl ) {
return;
}
this.select( widgetTpl );
widgetId = $( this.selected ).data( 'widget-id' );
widget = this.collection.findWhere( { id: widgetId } );
if ( ! widget ) {
return;
}
widgetFormControl = this.currentSidebarControl.addWidget( widget.get( 'id_base' ) );
if ( widgetFormControl ) {
widgetFormControl.focus();
}
this.close();
},
/**
* Opens the panel.
*/
open: function( sidebarControl ) {
this.currentSidebarControl = sidebarControl;
// Wide widget controls appear over the preview, and so they need to be collapsed when the panel opens.
_( this.currentSidebarControl.getWidgetFormControls() ).each( function( control ) {
if ( control.params.is_wide ) {
control.collapseForm();
}
} );
if ( api.section.has( 'publish_settings' ) ) {
api.section( 'publish_settings' ).collapse();
}
$( 'body' ).addClass( 'adding-widget' );
this.$el.find( '.selected' ).removeClass( 'selected' );
// Reset search.
this.collection.doSearch( '' );
if ( ! api.settings.browser.mobile ) {
this.$search.trigger( 'focus' );
}
},
/**
* Closes the panel.
*/
close: function( options ) {
options = options || {};
if ( options.returnFocus && this.currentSidebarControl ) {
this.currentSidebarControl.container.find( '.add-new-widget' ).focus();
}
this.currentSidebarControl = null;
this.selected = null;
$( 'body' ).removeClass( 'adding-widget' );
this.$search.val( '' ).trigger( 'input' );
},
/**
* Adds keyboard accessiblity to the panel.
*/
keyboardAccessible: function( event ) {
var isEnter = ( event.which === 13 ),
isEsc = ( event.which === 27 ),
isDown = ( event.which === 40 ),
isUp = ( event.which === 38 ),
isTab = ( event.which === 9 ),
isShift = ( event.shiftKey ),
selected = null,
firstVisible = this.$el.find( '> .widget-tpl:visible:first' ),
lastVisible = this.$el.find( '> .widget-tpl:visible:last' ),
isSearchFocused = $( event.target ).is( this.$search ),
isLastWidgetFocused = $( event.target ).is( '.widget-tpl:visible:last' );
if ( isDown || isUp ) {
if ( isDown ) {
if ( isSearchFocused ) {
selected = firstVisible;
} else if ( this.selected && this.selected.nextAll( '.widget-tpl:visible' ).length !== 0 ) {
selected = this.selected.nextAll( '.widget-tpl:visible:first' );
}
} else if ( isUp ) {
if ( isSearchFocused ) {
selected = lastVisible;
} else if ( this.selected && this.selected.prevAll( '.widget-tpl:visible' ).length !== 0 ) {
selected = this.selected.prevAll( '.widget-tpl:visible:first' );
}
}
this.select( selected );
if ( selected ) {
selected.trigger( 'focus' );
} else {
this.$search.trigger( 'focus' );
}
return;
}
// If enter pressed but nothing entered, don't do anything.
if ( isEnter && ! this.$search.val() ) {
return;
}
if ( isEnter ) {
this.submit();
} else if ( isEsc ) {
this.close( { returnFocus: true } );
}
if ( this.currentSidebarControl && isTab && ( isShift && isSearchFocused || ! isShift && isLastWidgetFocused ) ) {
this.currentSidebarControl.container.find( '.add-new-widget' ).focus();
event.preventDefault();
}
}
});
/**
* Handlers for the widget-synced event, organized by widget ID base.
* Other widgets may provide their own update handlers by adding
* listeners for the widget-synced event.
*
* @alias wp.customize.Widgets.formSyncHandlers
*/
api.Widgets.formSyncHandlers = {
/**
* @param {jQuery.Event} e
* @param {jQuery} widget
* @param {string} newForm
*/
rss: function( e, widget, newForm ) {
var oldWidgetError = widget.find( '.widget-error:first' ),
newWidgetError = $( '<div>' + newForm + '</div>' ).find( '.widget-error:first' );
if ( oldWidgetError.length && newWidgetError.length ) {
oldWidgetError.replaceWith( newWidgetError );
} else if ( oldWidgetError.length ) {
oldWidgetError.remove();
} else if ( newWidgetError.length ) {
widget.find( '.widget-content:first' ).prepend( newWidgetError );
}
}
};
api.Widgets.WidgetControl = api.Control.extend(/** @lends wp.customize.Widgets.WidgetControl.prototype */{
defaultExpandedArguments: {
duration: 'fast',
completeCallback: $.noop
},
/**
* wp.customize.Widgets.WidgetControl
*
* Customizer control for widgets.
* Note that 'widget_form' must match the WP_Widget_Form_Customize_Control::$type
*
* @since 4.1.0
*
* @constructs wp.customize.Widgets.WidgetControl
* @augments wp.customize.Control
*/
initialize: function( id, options ) {
var control = this;
control.widgetControlEmbedded = false;
control.widgetContentEmbedded = false;
control.expanded = new api.Value( false );
control.expandedArgumentsQueue = [];
control.expanded.bind( function( expanded ) {
var args = control.expandedArgumentsQueue.shift();
args = $.extend( {}, control.defaultExpandedArguments, args );
control.onChangeExpanded( expanded, args );
});
control.altNotice = true;
api.Control.prototype.initialize.call( control, id, options );
},
/**
* Set up the control.
*
* @since 3.9.0
*/
ready: function() {
var control = this;
/*
* Embed a placeholder once the section is expanded. The full widget
* form content will be embedded once the control itself is expanded,
* and at this point the widget-added event will be triggered.
*/
if ( ! control.section() ) {
control.embedWidgetControl();
} else {
api.section( control.section(), function( section ) {
var onExpanded = function( isExpanded ) {
if ( isExpanded ) {
control.embedWidgetControl();
section.expanded.unbind( onExpanded );
}
};
if ( section.expanded() ) {
onExpanded( true );
} else {
section.expanded.bind( onExpanded );
}
} );
}
},
/**
* Embed the .widget element inside the li container.
*
* @since 4.4.0
*/
embedWidgetControl: function() {
var control = this, widgetControl;
if ( control.widgetControlEmbedded ) {
return;
}
control.widgetControlEmbedded = true;
widgetControl = $( control.params.widget_control );
control.container.append( widgetControl );
control._setupModel();
control._setupWideWidget();
control._setupControlToggle();
control._setupWidgetTitle();
control._setupReorderUI();
control._setupHighlightEffects();
control._setupUpdateUI();
control._setupRemoveUI();
},
/**
* Embed the actual widget form inside of .widget-content and finally trigger the widget-added event.
*
* @since 4.4.0
*/
embedWidgetContent: function() {
var control = this, widgetContent;
control.embedWidgetControl();
if ( control.widgetContentEmbedded ) {
return;
}
control.widgetContentEmbedded = true;
// Update the notification container element now that the widget content has been embedded.
control.notifications.container = control.getNotificationsContainerElement();
control.notifications.render();
widgetContent = $( control.params.widget_content );
control.container.find( '.widget-content:first' ).append( widgetContent );
/*
* Trigger widget-added event so that plugins can attach any event
* listeners and dynamic UI elements.
*/
$( document ).trigger( 'widget-added', [ control.container.find( '.widget:first' ) ] );
},
/**
* Handle changes to the setting
*/
_setupModel: function() {
var self = this, rememberSavedWidgetId;
// Remember saved widgets so we know which to trash (move to inactive widgets sidebar).
rememberSavedWidgetId = function() {
api.Widgets.savedWidgetIds[self.params.widget_id] = true;
};
api.bind( 'ready', rememberSavedWidgetId );
api.bind( 'saved', rememberSavedWidgetId );
this._updateCount = 0;
this.isWidgetUpdating = false;
this.liveUpdateMode = true;
// Update widget whenever model changes.
this.setting.bind( function( to, from ) {
if ( ! _( from ).isEqual( to ) && ! self.isWidgetUpdating ) {
self.updateWidget( { instance: to } );
}
} );
},
/**
* Add special behaviors for wide widget controls
*/
_setupWideWidget: function() {
var self = this, $widgetInside, $widgetForm, $customizeSidebar,
$themeControlsContainer, positionWidget;
if ( ! this.params.is_wide || $( window ).width() <= 640 /* max-width breakpoint in customize-controls.css */ ) {
return;
}
$widgetInside = this.container.find( '.widget-inside' );
$widgetForm = $widgetInside.find( '> .form' );
$customizeSidebar = $( '.wp-full-overlay-sidebar-content:first' );
this.container.addClass( 'wide-widget-control' );
this.container.find( '.form:first' ).css( {
'max-width': this.params.width,
'min-height': this.params.height
} );
/**
* Keep the widget-inside positioned so the top of fixed-positioned
* element is at the same top position as the widget-top. When the
* widget-top is scrolled out of view, keep the widget-top in view;
* likewise, don't allow the widget to drop off the bottom of the window.
* If a widget is too tall to fit in the window, don't let the height
* exceed the window height so that the contents of the widget control
* will become scrollable (overflow:auto).
*/
positionWidget = function() {
var offsetTop = self.container.offset().top,
windowHeight = $( window ).height(),
formHeight = $widgetForm.outerHeight(),
top;
$widgetInside.css( 'max-height', windowHeight );
top = Math.max(
0, // Prevent top from going off screen.
Math.min(
Math.max( offsetTop, 0 ), // Distance widget in panel is from top of screen.
windowHeight - formHeight // Flush up against bottom of screen.
)
);
$widgetInside.css( 'top', top );
};
$themeControlsContainer = $( '#customize-theme-controls' );
this.container.on( 'expand', function() {
positionWidget();
$customizeSidebar.on( 'scroll', positionWidget );
$( window ).on( 'resize', positionWidget );
$themeControlsContainer.on( 'expanded collapsed', positionWidget );
} );
this.container.on( 'collapsed', function() {
$customizeSidebar.off( 'scroll', positionWidget );
$( window ).off( 'resize', positionWidget );
$themeControlsContainer.off( 'expanded collapsed', positionWidget );
} );
// Reposition whenever a sidebar's widgets are changed.
api.each( function( setting ) {
if ( 0 === setting.id.indexOf( 'sidebars_widgets[' ) ) {
setting.bind( function() {
if ( self.container.hasClass( 'expanded' ) ) {
positionWidget();
}
} );
}
} );
},
/**
* Show/hide the control when clicking on the form title, when clicking
* the close button
*/
_setupControlToggle: function() {
var self = this, $closeBtn;
this.container.find( '.widget-top' ).on( 'click', function( e ) {
e.preventDefault();
var sidebarWidgetsControl = self.getSidebarWidgetsControl();
if ( sidebarWidgetsControl.isReordering ) {
return;
}
self.expanded( ! self.expanded() );
} );
$closeBtn = this.container.find( '.widget-control-close' );
$closeBtn.on( 'click', function() {
self.collapse();
self.container.find( '.widget-top .widget-action:first' ).focus(); // Keyboard accessibility.
} );
},
/**
* Update the title of the form if a title field is entered
*/
_setupWidgetTitle: function() {
var self = this, updateTitle;
updateTitle = function() {
var title = self.setting().title,
inWidgetTitle = self.container.find( '.in-widget-title' );
if ( title ) {
inWidgetTitle.text( ': ' + title );
} else {
inWidgetTitle.text( '' );
}
};
this.setting.bind( updateTitle );
updateTitle();
},
/**
* Set up the widget-reorder-nav
*/
_setupReorderUI: function() {
var self = this, selectSidebarItem, $moveWidgetArea,
$reorderNav, updateAvailableSidebars, template;
/**
* select the provided sidebar list item in the move widget area
*
* @param {jQuery} li
*/
selectSidebarItem = function( li ) {
li.siblings( '.selected' ).removeClass( 'selected' );
li.addClass( 'selected' );
var isSelfSidebar = ( li.data( 'id' ) === self.params.sidebar_id );
self.container.find( '.move-widget-btn' ).prop( 'disabled', isSelfSidebar );
};
/**
* Add the widget reordering elements to the widget control
*/
this.container.find( '.widget-title-action' ).after( $( api.Widgets.data.tpl.widgetReorderNav ) );
template = _.template( api.Widgets.data.tpl.moveWidgetArea );
$moveWidgetArea = $( template( {
sidebars: _( api.Widgets.registeredSidebars.toArray() ).pluck( 'attributes' )
} )
);
this.container.find( '.widget-top' ).after( $moveWidgetArea );
/**
* Update available sidebars when their rendered state changes
*/
updateAvailableSidebars = function() {
var $sidebarItems = $moveWidgetArea.find( 'li' ), selfSidebarItem,
renderedSidebarCount = 0;
selfSidebarItem = $sidebarItems.filter( function(){
return $( this ).data( 'id' ) === self.params.sidebar_id;
} );
$sidebarItems.each( function() {
var li = $( this ),
sidebarId, sidebar, sidebarIsRendered;
sidebarId = li.data( 'id' );
sidebar = api.Widgets.registeredSidebars.get( sidebarId );
sidebarIsRendered = sidebar.get( 'is_rendered' );
li.toggle( sidebarIsRendered );
if ( sidebarIsRendered ) {
renderedSidebarCount += 1;
}
if ( li.hasClass( 'selected' ) && ! sidebarIsRendered ) {
selectSidebarItem( selfSidebarItem );
}
} );
if ( renderedSidebarCount > 1 ) {
self.container.find( '.move-widget' ).show();
} else {
self.container.find( '.move-widget' ).hide();
}
};
updateAvailableSidebars();
api.Widgets.registeredSidebars.on( 'change:is_rendered', updateAvailableSidebars );
/**
* Handle clicks for up/down/move on the reorder nav
*/
$reorderNav = this.container.find( '.widget-reorder-nav' );
$reorderNav.find( '.move-widget, .move-widget-down, .move-widget-up' ).each( function() {
$( this ).prepend( self.container.find( '.widget-title' ).text() + ': ' );
} ).on( 'click keypress', function( event ) {
if ( event.type === 'keypress' && ( event.which !== 13 && event.which !== 32 ) ) {
return;
}
$( this ).trigger( 'focus' );
if ( $( this ).is( '.move-widget' ) ) {
self.toggleWidgetMoveArea();
} else {
var isMoveDown = $( this ).is( '.move-widget-down' ),
isMoveUp = $( this ).is( '.move-widget-up' ),
i = self.getWidgetSidebarPosition();
if ( ( isMoveUp && i === 0 ) || ( isMoveDown && i === self.getSidebarWidgetsControl().setting().length - 1 ) ) {
return;
}
if ( isMoveUp ) {
self.moveUp();
wp.a11y.speak( l10n.widgetMovedUp );
} else {
self.moveDown();
wp.a11y.speak( l10n.widgetMovedDown );
}
$( this ).trigger( 'focus' ); // Re-focus after the container was moved.
}
} );
/**
* Handle selecting a sidebar to move to
*/
this.container.find( '.widget-area-select' ).on( 'click keypress', 'li', function( event ) {
if ( event.type === 'keypress' && ( event.which !== 13 && event.which !== 32 ) ) {
return;
}
event.preventDefault();
selectSidebarItem( $( this ) );
} );
/**
* Move widget to another sidebar
*/
this.container.find( '.move-widget-btn' ).click( function() {
self.getSidebarWidgetsControl().toggleReordering( false );
var oldSidebarId = self.params.sidebar_id,
newSidebarId = self.container.find( '.widget-area-select li.selected' ).data( 'id' ),
oldSidebarWidgetsSetting, newSidebarWidgetsSetting,
oldSidebarWidgetIds, newSidebarWidgetIds, i;
oldSidebarWidgetsSetting = api( 'sidebars_widgets[' + oldSidebarId + ']' );
newSidebarWidgetsSetting = api( 'sidebars_widgets[' + newSidebarId + ']' );
oldSidebarWidgetIds = Array.prototype.slice.call( oldSidebarWidgetsSetting() );
newSidebarWidgetIds = Array.prototype.slice.call( newSidebarWidgetsSetting() );
i = self.getWidgetSidebarPosition();
oldSidebarWidgetIds.splice( i, 1 );
newSidebarWidgetIds.push( self.params.widget_id );
oldSidebarWidgetsSetting( oldSidebarWidgetIds );
newSidebarWidgetsSetting( newSidebarWidgetIds );
self.focus();
} );
},
/**
* Highlight widgets in preview when interacted with in the Customizer
*/
_setupHighlightEffects: function() {
var self = this;
// Highlight whenever hovering or clicking over the form.
this.container.on( 'mouseenter click', function() {
self.setting.previewer.send( 'highlight-widget', self.params.widget_id );
} );
// Highlight when the setting is updated.
this.setting.bind( function() {
self.setting.previewer.send( 'highlight-widget', self.params.widget_id );
} );
},
/**
* Set up event handlers for widget updating
*/
_setupUpdateUI: function() {
var self = this, $widgetRoot, $widgetContent,
$saveBtn, updateWidgetDebounced, formSyncHandler;
$widgetRoot = this.container.find( '.widget:first' );
$widgetContent = $widgetRoot.find( '.widget-content:first' );
// Configure update button.
$saveBtn = this.container.find( '.widget-control-save' );
$saveBtn.val( l10n.saveBtnLabel );
$saveBtn.attr( 'title', l10n.saveBtnTooltip );
$saveBtn.removeClass( 'button-primary' );
$saveBtn.on( 'click', function( e ) {
e.preventDefault();
self.updateWidget( { disable_form: true } ); // @todo disable_form is unused?
} );
updateWidgetDebounced = _.debounce( function() {
self.updateWidget();
}, 250 );
// Trigger widget form update when hitting Enter within an input.
$widgetContent.on( 'keydown', 'input', function( e ) {
if ( 13 === e.which ) { // Enter.
e.preventDefault();
self.updateWidget( { ignoreActiveElement: true } );
}
} );
// Handle widgets that support live previews.
$widgetContent.on( 'change input propertychange', ':input', function( e ) {
if ( ! self.liveUpdateMode ) {
return;
}
if ( e.type === 'change' || ( this.checkValidity && this.checkValidity() ) ) {
updateWidgetDebounced();
}
} );
// Remove loading indicators when the setting is saved and the preview updates.
this.setting.previewer.channel.bind( 'synced', function() {
self.container.removeClass( 'previewer-loading' );
} );
api.previewer.bind( 'widget-updated', function( updatedWidgetId ) {
if ( updatedWidgetId === self.params.widget_id ) {
self.container.removeClass( 'previewer-loading' );
}
} );
formSyncHandler = api.Widgets.formSyncHandlers[ this.params.widget_id_base ];
if ( formSyncHandler ) {
$( document ).on( 'widget-synced', function( e, widget ) {
if ( $widgetRoot.is( widget ) ) {
formSyncHandler.apply( document, arguments );
}
} );
}
},
/**
* Update widget control to indicate whether it is currently rendered.
*
* Overrides api.Control.toggle()
*
* @since 4.1.0
*
* @param {boolean} active
* @param {Object} args
* @param {function} args.completeCallback
*/
onChangeActive: function ( active, args ) {
// Note: there is a second 'args' parameter being passed, merged on top of this.defaultActiveArguments.
this.container.toggleClass( 'widget-rendered', active );
if ( args.completeCallback ) {
args.completeCallback();
}
},
/**
* Set up event handlers for widget removal
*/
_setupRemoveUI: function() {
var self = this, $removeBtn, replaceDeleteWithRemove;
// Configure remove button.
$removeBtn = this.container.find( '.widget-control-remove' );
$removeBtn.on( 'click', function() {
// Find an adjacent element to add focus to when this widget goes away.
var $adjacentFocusTarget;
if ( self.container.next().is( '.customize-control-widget_form' ) ) {
$adjacentFocusTarget = self.container.next().find( '.widget-action:first' );
} else if ( self.container.prev().is( '.customize-control-widget_form' ) ) {
$adjacentFocusTarget = self.container.prev().find( '.widget-action:first' );
} else {
$adjacentFocusTarget = self.container.next( '.customize-control-sidebar_widgets' ).find( '.add-new-widget:first' );
}