WordPress/wp-admin/js/customize-widgets.js
2014-03-24 23:02:13 +00:00

1855 lines
59 KiB
JavaScript

/*global wp, Backbone, _, jQuery, WidgetCustomizer_exports */
/*exported WidgetCustomizer */
var WidgetCustomizer = ( function ($) {
'use strict';
var Widget,
WidgetCollection,
Sidebar,
SidebarCollection,
OldPreviewer,
customize = wp.customize, self = {
update_widget_ajax_action: null,
update_widget_nonce_value: null,
update_widget_nonce_post_key: null,
i18n: {
save_btn_label: '',
save_btn_tooltip: '',
remove_btn_label: '',
remove_btn_tooltip: '',
error: ''
},
available_widgets: [], // available widgets for instantiating
registered_widgets: [], // all widgets registered
active_sidebar_control: null,
previewer: null,
saved_widget_ids: {},
registered_sidebars: [],
tpl: {
move_widget_area: '',
widget_reorder_nav: ''
}
};
$.extend( self, WidgetCustomizer_exports );
// Lots of widgets expect this old ajaxurl global to be available
if ( typeof window.ajaxurl === 'undefined' ) {
window.ajaxurl = wp.ajax.settings.url;
}
// Unfortunately many widgets try to look for instances under div#widgets-right,
// so we have to add that ID to a container div in the customizer for compat
$( '#customize-theme-controls' ).closest( 'div:not([id])' ).attr( 'id', 'widgets-right' );
/**
* Set up model
*/
Widget = self.Widget = Backbone.Model.extend( {
id: null,
temp_id: null,
classname: null,
control_tpl: null,
description: null,
is_disabled: null,
is_multi: null,
multi_number: null,
name: null,
id_base: null,
transport: 'refresh',
params: [],
width: null,
height: null
} );
WidgetCollection = self.WidgetCollection = Backbone.Collection.extend( {
model: Widget,
// Controls searching on the current widget collection
// and triggers an update event
doSearch: function( value ) {
// Don't do anything if we've already done this search
// Useful because the search handler fires multiple times per keystroke
if ( this.terms === value ) {
return;
}
// Updates terms with the value passed
this.terms = value;
// If we have terms, run a search...
if ( this.terms.length > 0 ) {
this.search( this.terms );
}
// If search is blank, show all themes
// Useful for resetting the views when you clean the input
if ( this.terms === '' ) {
this.reset( WidgetCustomizer_exports.available_widgets );
}
// Trigger an 'update' event
this.trigger( 'update' );
},
// Performs a search within the collection
// @uses RegExp
search: function( term ) {
var match, results, haystack;
// Start with a full collection
this.reset( WidgetCustomizer_exports.available_widgets, { silent: true } );
// Escape the term string for RegExp meta characters
term = term.replace( /[-\/\\^$*+?.()|[\]{}]/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' );
results = this.filter( function( data ) {
haystack = _.union( data.get( 'name' ), data.get( 'id' ), data.get( 'description' ) );
return match.test( haystack );
});
this.reset( results );
}
} );
self.available_widgets = new WidgetCollection( self.available_widgets );
Sidebar = self.Sidebar = Backbone.Model.extend( {
after_title: null,
after_widget: null,
before_title: null,
before_widget: null,
'class': null,
description: null,
id: null,
name: null,
is_rendered: false
} );
SidebarCollection = self.SidebarCollection = Backbone.Collection.extend( {
model: Sidebar
} );
self.registered_sidebars = new SidebarCollection( self.registered_sidebars );
/**
* On DOM ready, initialize some meta functionality independent of specific
* customizer controls.
*/
self.init = function () {
this.showFirstSidebarIfRequested();
this.availableWidgetsPanel.setup();
};
wp.customize.bind( 'ready', function () {
self.init();
} );
/**
* Listen for updates to which sidebars are rendered in the preview and toggle
* the customizer sections accordingly.
*/
self.showFirstSidebarIfRequested = function () {
if ( ! /widget-customizer=open/.test( location.search ) ) {
return;
}
var show_first_visible_sidebar = function () {
self.registered_sidebars.off( 'change:is_rendered', show_first_visible_sidebar );
var section, first_rendered_sidebar = self.registered_sidebars.find( function ( sidebar ) {
return sidebar.get( 'is_rendered' );
} );
if ( ! first_rendered_sidebar ) {
return;
}
section = $( '#accordion-section-sidebar-widgets-' + first_rendered_sidebar.get( 'id' ) );
if ( ! section.hasClass( 'open' ) ) {
section.find( '.accordion-section-title' ).trigger( 'click' );
}
section[0].scrollIntoView();
};
show_first_visible_sidebar = _.debounce( show_first_visible_sidebar, 100 ); // so only fires when all updated at end
self.registered_sidebars.on( 'change:is_rendered', show_first_visible_sidebar );
};
/**
* Sidebar Widgets control
* Note that 'sidebar_widgets' must match the Sidebar_Widgets_WP_Customize_Control::$type
*/
customize.controlConstructor.sidebar_widgets = customize.Control.extend( {
/**
* Set up the control
*/
ready: function() {
var control = this;
control.control_section = control.container.closest( '.control-section' );
control.section_content = control.container.closest( '.accordion-section-content' );
control._setupModel();
control._setupSortable();
control._setupAddition();
control._applyCardinalOrderClassNames();
},
/**
* Update ordering of widget control forms when the setting is updated
*/
_setupModel: function() {
var control = this,
registered_sidebar = self.registered_sidebars.get( control.params.sidebar_id );
control.setting.bind( function( new_widget_ids, old_widget_ids ) {
var widget_form_controls,
sidebar_widgets_add_control,
final_control_containers,
removed_widget_ids = _( old_widget_ids ).difference( new_widget_ids );
// Filter out any persistent widget_ids for widgets which have been deactivated
new_widget_ids = _( new_widget_ids ).filter( function ( new_widget_id ) {
var parsed_widget_id = parse_widget_id( new_widget_id );
return !! self.available_widgets.findWhere( { id_base: parsed_widget_id.id_base } );
} );
widget_form_controls = _( new_widget_ids ).map( function ( widget_id ) {
var widget_form_control = self.getWidgetFormControlForWidget( widget_id );
if ( ! widget_form_control ) {
widget_form_control = control.addWidget( widget_id );
}
return widget_form_control;
} );
// Sort widget controls to their new positions
widget_form_controls.sort( function ( a, b ) {
var a_index = _.indexOf( new_widget_ids, a.params.widget_id ),
b_index = _.indexOf( new_widget_ids, b.params.widget_id );
if ( a_index === b_index ) {
return 0;
}
return a_index < b_index ? -1 : 1;
} );
sidebar_widgets_add_control = control.section_content.find( '.customize-control-sidebar_widgets' );
// Append the controls to put them in the right order
final_control_containers = _( widget_form_controls ).map( function( widget_form_controls ) {
return widget_form_controls.container[0];
} );
// Re-sort widget form controls (including widgets form other sidebars newly moved here)
sidebar_widgets_add_control.before( final_control_containers );
control._applyCardinalOrderClassNames();
// If the widget was dragged into the sidebar, make sure the sidebar_id param is updated
_( widget_form_controls ).each( function ( widget_form_control ) {
widget_form_control.params.sidebar_id = control.params.sidebar_id;
} );
// Cleanup after widget removal
_( removed_widget_ids ).each( function ( removed_widget_id ) {
// Using setTimeout so that when moving a widget to another sidebar, the other sidebars_widgets settings get a chance to update
setTimeout( function () {
var is_present_in_another_sidebar = false,
removed_control,
was_dragged_to_another_sidebar,
inactive_widgets,
removed_id_base,
widget;
// Check if the widget is in another sidebar
wp.customize.each( function ( other_setting ) {
if ( other_setting.id === control.setting.id || 0 !== _.indexOf( other_setting.id, 'sidebars_widgets[' ) || other_setting.id === 'sidebars_widgets[wp_inactive_widgets]' ) {
return;
}
var other_sidebar_widgets = other_setting(), i;
i = _.indexOf( other_sidebar_widgets, removed_widget_id );
if ( -1 !== i ) {
is_present_in_another_sidebar = true;
}
} );
// If the widget is present in another sidebar, abort!
if ( is_present_in_another_sidebar ) {
return;
}
removed_control = self.getWidgetFormControlForWidget( removed_widget_id );
// Detect if widget control was dragged to another sidebar
was_dragged_to_another_sidebar = (
removed_control &&
$.contains( document, removed_control.container[0] ) &&
! $.contains( control.section_content[0], removed_control.container[0] )
);
// Delete any widget form controls for removed widgets
if ( removed_control && ! was_dragged_to_another_sidebar ) {
wp.customize.control.remove( removed_control.id );
removed_control.container.remove();
}
// Move widget to inactive widgets sidebar (move it to trash) if has been previously saved
// This prevents the inactive widgets sidebar from overflowing with throwaway widgets
if ( self.saved_widget_ids[removed_widget_id] ) {
inactive_widgets = wp.customize.value( 'sidebars_widgets[wp_inactive_widgets]' )().slice();
inactive_widgets.push( removed_widget_id );
wp.customize.value( 'sidebars_widgets[wp_inactive_widgets]' )( _( inactive_widgets ).unique() );
}
// Make old single widget available for adding again
removed_id_base = parse_widget_id( removed_widget_id ).id_base;
widget = self.available_widgets.findWhere( { id_base: removed_id_base } );
if ( widget && ! widget.get( 'is_multi' ) ) {
widget.set( 'is_disabled', false );
}
} );
} );
} );
// Update the model with whether or not the sidebar is rendered
self.previewer.bind( 'rendered-sidebars', function ( rendered_sidebars ) {
var is_rendered = !! rendered_sidebars[control.params.sidebar_id];
registered_sidebar.set( 'is_rendered', is_rendered );
} );
// Show the sidebar section when it becomes visible
registered_sidebar.on( 'change:is_rendered', function ( ) {
var section_selector = '#accordion-section-sidebar-widgets-' + this.get( 'id' ), section;
section = $( section_selector );
if ( this.get( 'is_rendered' ) ) {
section.stop().slideDown( function () {
$( this ).css( 'height', 'auto' ); // so that the .accordion-section-content won't overflow
} );
} else {
// Make sure that hidden sections get closed first
if ( section.hasClass( 'open' ) ) {
// it would be nice if accordionSwitch() in accordion.js was public
section.find( '.accordion-section-title' ).trigger( 'click' );
}
section.stop().slideUp();
}
} );
},
/**
* Allow widgets in sidebar to be re-ordered, and for the order to be previewed
*/
_setupSortable: function () {
var control = this;
control.is_reordering = false;
/**
* Update widget order setting when controls are re-ordered
*/
control.section_content.sortable( {
items: '> .customize-control-widget_form',
handle: '.widget-top',
axis: 'y',
connectWith: '.accordion-section-content:has(.customize-control-sidebar_widgets)',
update: function () {
var widget_container_ids = control.section_content.sortable( 'toArray' ), widget_ids;
widget_ids = $.map( widget_container_ids, function ( widget_container_id ) {
return $( '#' + widget_container_id ).find( ':input[name=widget-id]' ).val();
} );
control.setting( widget_ids );
}
} );
/**
* Expand other customizer sidebar section when dragging a control widget over it,
* allowing the control to be dropped into another section
*/
control.control_section.find( '.accordion-section-title' ).droppable( {
accept: '.customize-control-widget_form',
over: function () {
if ( ! control.control_section.hasClass( 'open' ) ) {
control.control_section.addClass( 'open' );
control.section_content.toggle( false ).slideToggle( 150, function () {
control.section_content.sortable( 'refreshPositions' );
} );
}
}
} );
/**
* Keyboard-accessible reordering
*/
control.container.find( '.reorder-toggle' ).on( 'click keydown', function( event ) {
if ( event.type === 'keydown' && ! ( event.which === 13 || event.which === 32 ) ) { // Enter or Spacebar
return;
}
control.toggleReordering( ! control.is_reordering );
} );
},
/**
* Set up UI for adding a new widget
*/
_setupAddition: function () {
var control = this;
control.container.find( '.add-new-widget' ).on( 'click keydown', function( event ) {
if ( event.type === 'keydown' && ! ( event.which === 13 || event.which === 32 ) ) { // Enter or Spacebar
return;
}
if ( control.section_content.hasClass( 'reordering' ) ) {
return;
}
// @todo Use an control.is_adding state
if ( ! $( 'body' ).hasClass( 'adding-widget' ) ) {
self.availableWidgetsPanel.open( control );
} else {
self.availableWidgetsPanel.close();
}
} );
},
/**
* Add classes to the widget_form controls to assist with styling
*/
_applyCardinalOrderClassNames: function () {
var control = this;
control.section_content.find( '.customize-control-widget_form' )
.removeClass( 'first-widget' )
.removeClass( 'last-widget' )
.find( '.move-widget-down, .move-widget-up' ).prop( 'tabIndex', 0 );
control.section_content.find( '.customize-control-widget_form:first' )
.addClass( 'first-widget' )
.find( '.move-widget-up' ).prop( 'tabIndex', -1 );
control.section_content.find( '.customize-control-widget_form:last' )
.addClass( 'last-widget' )
.find( '.move-widget-down' ).prop( 'tabIndex', -1 );
},
/***********************************************************************
* Begin public API methods
**********************************************************************/
/**
* Enable/disable the reordering UI
*
* @param {Boolean} toggle to enable/disable reordering
*/
toggleReordering: function ( toggle ) {
var control = this;
toggle = Boolean( toggle );
if ( toggle === control.section_content.hasClass( 'reordering' ) ) {
return;
}
control.is_reordering = toggle;
control.section_content.toggleClass( 'reordering', toggle );
if ( toggle ) {
_( control.getWidgetFormControls() ).each( function ( form_control ) {
form_control.collapseForm();
} );
}
},
/**
* @return {wp.customize.controlConstructor.widget_form[]}
*/
getWidgetFormControls: function () {
var control = this, form_controls;
form_controls = _( control.setting() ).map( function ( widget_id ) {
var setting_id = widget_id_to_setting_id( widget_id ),
form_control = customize.control( setting_id );
if ( ! form_control ) {
throw new Error( 'Unable to find widget_form control for ' + widget_id );
}
return form_control;
} );
return form_controls;
},
/**
* @param {string} widget_id or an id_base for adding a previously non-existing widget
* @returns {object} widget_form control instance
*/
addWidget: function ( widget_id ) {
var control = this,
control_html,
customize_control_type = 'widget_form',
customize_control,
parsed_widget_id = parse_widget_id( widget_id ),
widget_number = parsed_widget_id.number,
widget_id_base = parsed_widget_id.id_base,
widget = self.available_widgets.findWhere( {id_base: widget_id_base} ),
setting_id,
is_existing_widget,
Constructor,
widget_form_control,
sidebar_widgets,
setting_args;
if ( ! widget ) {
throw new Error( 'Widget unexpectedly not found.' );
}
if ( widget_number && ! widget.get( 'is_multi' ) ) {
throw new Error( 'Did not expect a widget number to be supplied for a non-multi widget' );
}
// Set up new multi widget
if ( widget.get( 'is_multi' ) && ! widget_number ) {
widget.set( 'multi_number', widget.get( 'multi_number' ) + 1 );
widget_number = widget.get( 'multi_number' );
}
control_html = $( '#widget-tpl-' + widget.get( 'id' ) ).html();
if ( widget.get( 'is_multi' ) ) {
control_html = control_html.replace( /<[^<>]+>/g, function ( m ) {
return m.replace( /__i__|%i%/g, widget_number );
} );
} else {
widget.set( 'is_disabled', true ); // Prevent single widget from being added again now
}
customize_control = $( '<li></li>' );
customize_control.addClass( 'customize-control' );
customize_control.addClass( 'customize-control-' + customize_control_type );
customize_control.append( $( control_html ) );
customize_control.find( '> .widget-icon' ).remove();
if ( widget.get( 'is_multi' ) ) {
customize_control.find( 'input[name="widget_number"]' ).val( widget_number );
customize_control.find( 'input[name="multi_number"]' ).val( widget_number );
}
widget_id = customize_control.find( '[name="widget-id"]' ).val();
customize_control.hide(); // to be slid-down below
setting_id = 'widget_' + widget.get( 'id_base' );
if ( widget.get( 'is_multi' ) ) {
setting_id += '[' + widget_number + ']';
}
customize_control.attr( 'id', 'customize-control-' + setting_id.replace( /\]/g, '' ).replace( /\[/g, '-' ) );
control.container.after( customize_control );
// Only create setting if it doesn't already exist (if we're adding a pre-existing inactive widget)
is_existing_widget = wp.customize.has( setting_id );
if ( ! is_existing_widget ) {
setting_args = {
transport: 'refresh',
previewer: control.setting.previewer
};
wp.customize.create( setting_id, setting_id, {}, setting_args );
}
Constructor = wp.customize.controlConstructor[customize_control_type];
widget_form_control = new Constructor( setting_id, {
params: {
settings: {
'default': setting_id
},
sidebar_id: control.params.sidebar_id,
widget_id: widget_id,
widget_id_base: widget.get( 'id_base' ),
type: customize_control_type,
is_new: ! is_existing_widget,
width: widget.get( 'width' ),
height: widget.get( 'height' ),
is_wide: widget.get( 'is_wide' )
},
previewer: control.setting.previewer
} );
wp.customize.control.add( setting_id, widget_form_control );
// Make sure widget is removed from the other sidebars
wp.customize.each( function ( other_setting ) {
if ( other_setting.id === control.setting.id ) {
return;
}
if ( 0 !== _.indexOf( other_setting.id, 'sidebars_widgets[' ) ) {
return;
}
var other_sidebar_widgets = other_setting().slice(), i;
i = _.indexOf( other_sidebar_widgets, widget_id );
if ( -1 !== i ) {
other_sidebar_widgets.splice( i );
other_setting( other_sidebar_widgets );
}
} );
// Add widget to this sidebar
sidebar_widgets = control.setting().slice();
if ( -1 === _.indexOf( sidebar_widgets, widget_id ) ) {
sidebar_widgets.push( widget_id );
control.setting( sidebar_widgets );
}
customize_control.slideDown( function () {
if ( is_existing_widget ) {
widget_form_control.expandForm();
widget_form_control.updateWidget( {
instance: widget_form_control.setting(),
complete: function ( error ) {
if ( error ) {
throw error;
}
widget_form_control.focus();
}
} );
} else {
widget_form_control.focus();
}
} );
return widget_form_control;
}
} );
/**
* Widget Form control
* Note that 'widget_form' must match the Widget_Form_WP_Customize_Control::$type
*/
customize.controlConstructor.widget_form = customize.Control.extend( {
/**
* Set up the control
*/
ready: function() {
var control = this;
control._setupModel();
control._setupWideWidget();
control._setupControlToggle();
control._setupWidgetTitle();
control._setupReorderUI();
control._setupHighlightEffects();
control._setupUpdateUI();
control._setupRemoveUI();
control.hook( 'init' );
},
/**
* Hooks for widgets to support living in the customizer control
*/
hooks: {
_default: {},
rss: {
formUpdated: function ( serialized_form ) {
var control = this,
old_widget_error = control.container.find( '.widget-error:first' ),
new_widget_error = serialized_form.find( '.widget-error:first' );
if ( old_widget_error.length && new_widget_error.length ) {
old_widget_error.replaceWith( new_widget_error );
} else if ( old_widget_error.length ) {
old_widget_error.remove();
} else if ( new_widget_error.length ) {
control.container.find( '.widget-content' ).prepend( new_widget_error );
}
}
}
},
/**
* Trigger an 'action' which a specific widget type can handle
*
* @param name
*/
hook: function ( name ) {
var args = Array.prototype.slice.call( arguments, 1 ), handler;
if ( this.hooks[this.params.widget_id_base] && this.hooks[this.params.widget_id_base][name] ) {
handler = this.hooks[this.params.widget_id_base][name];
} else if ( this.hooks._default[name] ) {
handler = this.hooks._default[name];
}
if ( handler ) {
handler.apply( this, args );
}
},
/**
* Handle changes to the setting
*/
_setupModel: function () {
var control = this, remember_saved_widget_id;
// Remember saved widgets so we know which to trash (move to inactive widgets sidebar)
remember_saved_widget_id = function () {
self.saved_widget_ids[control.params.widget_id] = true;
};
wp.customize.bind( 'ready', remember_saved_widget_id );
wp.customize.bind( 'saved', remember_saved_widget_id );
control._update_count = 0;
control.is_widget_updating = false;
// Update widget whenever model changes
control.setting.bind( function( to, from ) {
if ( ! _( from ).isEqual( to ) && ! control.is_widget_updating ) {
control.updateWidget( { instance: to } );
}
} );
},
/**
* Add special behaviors for wide widget controls
*/
_setupWideWidget: function () {
var control = this,
widget_inside,
customize_sidebar,
position_widget,
theme_controls_container;
if ( ! control.params.is_wide ) {
return;
}
widget_inside = control.container.find( '.widget-inside' );
customize_sidebar = $( '.wp-full-overlay-sidebar-content:first' );
control.container.addClass( 'wide-widget-control' );
control.container.find( '.widget-content:first' ).css( {
'min-width': control.params.width,
'min-height': control.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.
*/
position_widget = function () {
var offset_top = control.container.offset().top,
height,
top,
max_top;
height = widget_inside.outerHeight();
top = Math.max( offset_top, 0 );
max_top = $( window ).height() - height;
top = Math.min( top, max_top );
widget_inside.css( 'top', top );
};
theme_controls_container = $( '#customize-theme-controls' );
control.container.on( 'expand', function () {
customize_sidebar.on( 'scroll', position_widget );
$( window ).on( 'resize', position_widget );
theme_controls_container.on( 'expanded collapsed', position_widget );
position_widget();
} );
control.container.on( 'collapsed', function () {
customize_sidebar.off( 'scroll', position_widget );
theme_controls_container.off( 'expanded collapsed', position_widget );
$( window ).off( 'resize', position_widget );
} );
// Reposition whenever a sidebar's widgets are changed
wp.customize.each( function ( setting ) {
if ( 0 === _.indexOf( setting.id, 'sidebars_widgets[' ) ) {
setting.bind( function () {
if ( control.container.hasClass( 'expanded' ) ) {
position_widget();
}
} );
}
} );
},
/**
* Show/hide the control when clicking on the form title, when clicking
* the close button
*/
_setupControlToggle: function() {
var control = this, close_btn;
control.container.find( '.widget-top' ).on( 'click', function ( e ) {
e.preventDefault();
var sidebar_widgets_control = control.getSidebarWidgetsControl();
if ( sidebar_widgets_control.is_reordering ) {
return;
}
control.toggleForm();
} );
close_btn = control.container.find( '.widget-control-close' );
// @todo Hitting Enter on this link does nothing; will be resolved in core with <http://core.trac.wordpress.org/ticket/26633>
close_btn.on( 'click', function ( e ) {
e.preventDefault();
control.collapseForm();
control.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 control = this, update_title;
update_title = function () {
var title = control.setting().title,
in_widget_title = control.container.find( '.in-widget-title' );
if ( title ) {
in_widget_title.text( ': ' + title );
} else {
in_widget_title.text( '' );
}
};
control.setting.bind( update_title );
update_title();
},
/**
* Set up the widget-reorder-nav
*/
_setupReorderUI: function () {
var control = this,
select_sidebar_item,
move_widget_area,
reorder_nav,
update_available_sidebars;
/**
* select the provided sidebar list item in the move widget area
*
* @param {jQuery} li
*/
select_sidebar_item = function ( li ) {
li.siblings( '.selected' ).removeClass( 'selected' );
li.addClass( 'selected' );
var is_self_sidebar = ( li.data( 'id' ) === control.params.sidebar_id );
control.container.find( '.move-widget-btn' ).prop( 'disabled', is_self_sidebar );
};
/**
* Add the widget reordering elements to the widget control
*/
control.container.find( '.widget-title-action' ).after( $( self.tpl.widget_reorder_nav ) );
move_widget_area = $(
_.template( self.tpl.move_widget_area, {
sidebars: _( self.registered_sidebars.toArray() ).pluck( 'attributes' )
} )
);
control.container.find( '.widget-top' ).after( move_widget_area );
/**
* Update available sidebars when their rendered state changes
*/
update_available_sidebars = function () {
var sidebar_items = move_widget_area.find( 'li' ), self_sidebar_item;
self_sidebar_item = sidebar_items.filter( function(){
return $( this ).data( 'id' ) === control.params.sidebar_id;
} );
sidebar_items.each( function () {
var li = $( this ),
sidebar_id,
sidebar_model;
sidebar_id = li.data( 'id' );
sidebar_model = self.registered_sidebars.get( sidebar_id );
li.toggle( sidebar_model.get( 'is_rendered' ) );
if ( li.hasClass( 'selected' ) && ! sidebar_model.get( 'is_rendered' ) ) {
select_sidebar_item( self_sidebar_item );
}
} );
};
update_available_sidebars();
self.registered_sidebars.on( 'change:is_rendered', update_available_sidebars );
/**
* Handle clicks for up/down/move on the reorder nav
*/
reorder_nav = control.container.find( '.widget-reorder-nav' );
reorder_nav.find( '.move-widget, .move-widget-down, .move-widget-up' ).on( 'click keypress', function ( event ) {
if ( event.type === 'keypress' && ( event.which !== 13 && event.which !== 32 ) ) {
return;
}
$( this ).focus();
if ( $( this ).is( '.move-widget' ) ) {
control.toggleWidgetMoveArea();
} else {
var is_move_down = $( this ).is( '.move-widget-down' ),
is_move_up = $( this ).is( '.move-widget-up' ),
i = control.getWidgetSidebarPosition();
if ( ( is_move_up && i === 0 ) || ( is_move_down && i === control.getSidebarWidgetsControl().setting().length - 1 ) ) {
return;
}
if ( is_move_up ) {
control.moveUp();
} else {
control.moveDown();
}
$( this ).focus(); // re-focus after the container was moved
}
} );
/**
* Handle selecting a sidebar to move to
*/
control.container.find( '.widget-area-select' ).on( 'click keypress', 'li', function ( e ) {
if ( event.type === 'keypress' && ( event.which !== 13 && event.which !== 32 ) ) {
return;
}
e.preventDefault();
select_sidebar_item( $( this ) );
} );
/**
* Move widget to another sidebar
*/
control.container.find( '.move-widget-btn' ).click( function () {
control.getSidebarWidgetsControl().toggleReordering( false );
var old_sidebar_id = control.params.sidebar_id,
new_sidebar_id = control.container.find( '.widget-area-select li.selected' ).data( 'id' ),
old_sidebar_widgets_setting,
new_sidebar_widgets_setting,
old_sidebar_widget_ids,
new_sidebar_widget_ids,
i;
old_sidebar_widgets_setting = customize( 'sidebars_widgets[' + old_sidebar_id + ']' );
new_sidebar_widgets_setting = customize( 'sidebars_widgets[' + new_sidebar_id + ']' );
old_sidebar_widget_ids = Array.prototype.slice.call( old_sidebar_widgets_setting() );
new_sidebar_widget_ids = Array.prototype.slice.call( new_sidebar_widgets_setting() );
i = control.getWidgetSidebarPosition();
old_sidebar_widget_ids.splice( i, 1 );
new_sidebar_widget_ids.push( control.params.widget_id );
old_sidebar_widgets_setting( old_sidebar_widget_ids );
new_sidebar_widgets_setting( new_sidebar_widget_ids );
control.focus();
} );
},
/**
* Highlight widgets in preview when interacted with in the customizer
*/
_setupHighlightEffects: function() {
var control = this;
// Highlight whenever hovering or clicking over the form
control.container.on( 'mouseenter click', function () {
control.highlightPreviewWidget();
} );
// Highlight when the setting is updated
control.setting.bind( function () {
control.scrollPreviewWidgetIntoView();
control.highlightPreviewWidget();
} );
// Highlight when the widget form is expanded
control.container.on( 'expand', function () {
control.scrollPreviewWidgetIntoView();
} );
},
/**
* Set up event handlers for widget updating
*/
_setupUpdateUI: function () {
var control = this,
widget_content,
save_btn,
update_widget_debounced;
widget_content = control.container.find( '.widget-content' );
// Configure update button
save_btn = control.container.find( '.widget-control-save' );
save_btn.val( self.i18n.save_btn_label );
save_btn.attr( 'title', self.i18n.save_btn_tooltip );
save_btn.removeClass( 'button-primary' ).addClass( 'button-secondary' );
save_btn.on( 'click', function ( e ) {
e.preventDefault();
control.updateWidget();
} );
update_widget_debounced = _.debounce( function () {
// @todo For compatibility with other plugins, should we trigger a click event? What about form submit event?
control.updateWidget();
}, 250 );
// Trigger widget form update when hitting Enter within an input
control.container.find( '.widget-content' ).on( 'keydown', 'input', function( e ) {
if ( 13 === e.which ) { // Enter
e.preventDefault();
control.updateWidget( { ignore_active_element: true } );
}
} );
// Handle widgets that support live previews
widget_content.on( 'change input propertychange', ':input', function ( e ) {
if ( e.type === 'change' ) {
control.updateWidget();
} else if ( this.checkValidity && this.checkValidity() ) {
update_widget_debounced();
}
} );
// Remove loading indicators when the setting is saved and the preview updates
control.setting.previewer.channel.bind( 'synced', function () {
control.container.removeClass( 'previewer-loading' );
} );
self.previewer.bind( 'widget-updated', function ( updated_widget_id ) {
if ( updated_widget_id === control.params.widget_id ) {
control.container.removeClass( 'previewer-loading' );
}
} );
// Update widget control to indicate whether it is currently rendered (cf. Widget Visibility)
self.previewer.bind( 'rendered-widgets', function ( rendered_widgets ) {
var is_rendered = !! rendered_widgets[control.params.widget_id];
control.container.toggleClass( 'widget-rendered', is_rendered );
} );
},
/**
* Set up event handlers for widget removal
*/
_setupRemoveUI: function () {
var control = this,
remove_btn,
replace_delete_with_remove;
// Configure remove button
remove_btn = control.container.find( 'a.widget-control-remove' );
// @todo Hitting Enter on this link does nothing; will be resolved in core with <http://core.trac.wordpress.org/ticket/26633>
remove_btn.on( 'click', function ( e ) {
e.preventDefault();
// Find an adjacent element to add focus to when this widget goes away
var adjacent_focus_target;
if ( control.container.next().is( '.customize-control-widget_form' ) ) {
adjacent_focus_target = control.container.next().find( '.widget-action:first' );
} else if ( control.container.prev().is( '.customize-control-widget_form' ) ) {
adjacent_focus_target = control.container.prev().find( '.widget-action:first' );
} else {
adjacent_focus_target = control.container.next( '.customize-control-sidebar_widgets' ).find( '.add-new-widget:first' );
}
control.container.slideUp( function() {
var sidebars_widgets_control = self.getSidebarWidgetControlContainingWidget( control.params.widget_id ),
sidebar_widget_ids,
i;
if ( ! sidebars_widgets_control ) {
throw new Error( 'Unable to find sidebars_widgets_control' );
}
sidebar_widget_ids = sidebars_widgets_control.setting().slice();
i = _.indexOf( sidebar_widget_ids, control.params.widget_id );
if ( -1 === i ) {
throw new Error( 'Widget is not in sidebar' );
}
sidebar_widget_ids.splice( i, 1 );
sidebars_widgets_control.setting( sidebar_widget_ids );
adjacent_focus_target.focus(); // keyboard accessibility
} );
} );
replace_delete_with_remove = function () {
remove_btn.text( self.i18n.remove_btn_label ); // wp_widget_control() outputs the link as "Delete"
remove_btn.attr( 'title', self.i18n.remove_btn_tooltip );
};
if ( control.params.is_new ) {
wp.customize.bind( 'saved', replace_delete_with_remove );
} else {
replace_delete_with_remove();
}
},
/**
* Iterate over supplied inputs and create a signature string for all of them together.
* This string can be used to compare whether or not the form has all of the same fields.
*
* @param {jQuery} inputs
* @returns {string}
* @private
*/
_getInputsSignature: function ( inputs ) {
var inputs_signatures = _( inputs ).map( function ( input ) {
input = $( input );
var signature_parts;
if ( input.is( 'option' ) ) {
signature_parts = [ input.prop( 'nodeName' ), input.prop( 'value' ) ];
} else if ( input.is( ':checkbox, :radio' ) ) {
signature_parts = [ input.prop( 'type' ), input.attr( 'id' ), input.attr( 'name' ), input.prop( 'value' ) ];
} else {
signature_parts = [ input.prop( 'nodeName' ), input.attr( 'id' ), input.attr( 'name' ), input.attr( 'type' ) ];
}
return signature_parts.join( ',' );
} );
return inputs_signatures.join( ';' );
},
/**
* Get the property that represents the state of an input.
*
* @param {jQuery|DOMElement} input
* @returns {string}
* @private
*/
_getInputStatePropertyName: function ( input ) {
input = $( input );
if ( input.is( ':radio, :checkbox' ) ) {
return 'checked';
} else if ( input.is( 'option' ) ) {
return 'selected';
} else {
return 'value';
}
},
/***********************************************************************
* Begin public API methods
**********************************************************************/
/**
* @return {wp.customize.controlConstructor.sidebar_widgets[]}
*/
getSidebarWidgetsControl: function () {
var control = this, setting_id, sidebar_widgets_control;
setting_id = 'sidebars_widgets[' + control.params.sidebar_id + ']';
sidebar_widgets_control = customize.control( setting_id );
if ( ! sidebar_widgets_control ) {
throw new Error( 'Unable to locate sidebar_widgets control for ' + control.params.sidebar_id );
}
return sidebar_widgets_control;
},
/**
* Submit the widget form via Ajax and get back the updated instance,
* along with the new widget control form to render.
*
* @param {object} [args]
* @param {Object|null} [args.instance=null] When the model changes, the instance is sent here; otherwise, the inputs from the form are used
* @param {Function|null} [args.complete=null] Function which is called when the request finishes. Context is bound to the control. First argument is any error. Following arguments are for success.
* @param {Boolean} [args.ignore_active_element=false] Whether or not updating a field will be deferred if focus is still on the element.
*/
updateWidget: function ( args ) {
var control = this,
instance_override,
complete_callback,
update_number,
widget_content,
element_id_to_refocus = null,
active_input_selection_start = null,
active_input_selection_end = null,
params,
data,
inputs,
processing,
jqxhr;
args = $.extend( {
instance: null,
complete: null,
ignore_active_element: false
}, args );
instance_override = args.instance;
complete_callback = args.complete;
control._update_count += 1;
update_number = control._update_count;
widget_content = control.container.find( '.widget-content' );
// Remove a previous error message
widget_content.find( '.widget-error' ).remove();
// @todo Support more selectors than IDs?
if ( $.contains( control.container[0], document.activeElement ) && $( document.activeElement ).is( '[id]' ) ) {
element_id_to_refocus = $( document.activeElement ).prop( 'id' );
// @todo IE8 support: http://stackoverflow.com/a/4207763/93579
try {
active_input_selection_start = document.activeElement.selectionStart;
active_input_selection_end = document.activeElement.selectionEnd;
}
catch( e ) {} // catch InvalidStateError in case of checkboxes
}
control.container.addClass( 'widget-form-loading' );
control.container.addClass( 'previewer-loading' );
processing = wp.customize.state( 'processing' );
processing( processing() + 1 );
params = {};
params.action = self.update_widget_ajax_action;
params.wp_customize = 'on';
params[self.update_widget_nonce_post_key] = self.update_widget_nonce_value;
data = $.param( params );
inputs = widget_content.find( ':input, option' );
// Store the value we're submitting in data so that when the response comes back,
// we know if it got sanitized; if there is no difference in the sanitized value,
// then we do not need to touch the UI and mess up the user's ongoing editing.
inputs.each( function () {
var input = $( this ),
property = control._getInputStatePropertyName( this );
input.data( 'state' + update_number, input.prop( property ) );
} );
if ( instance_override ) {
data += '&' + $.param( { 'sanitized_widget_setting': JSON.stringify( instance_override ) } );
} else {
data += '&' + inputs.serialize();
}
data += '&' + widget_content.find( '~ :input' ).serialize();
jqxhr = $.post( wp.ajax.settings.url, data, function ( r ) {
var message,
sanitized_form,
sanitized_inputs,
has_same_inputs_in_response,
is_instance_identical;
// Check if the user is logged out.
if ( '0' === r ) {
self.previewer.preview.iframe.hide();
self.previewer.login().done( function() {
control.updateWidget( args );
self.previewer.preview.iframe.show();
} );
return;
}
// Check for cheaters.
if ( '-1' === r ) {
self.previewer.cheatin();
return;
}
if ( r.success ) {
sanitized_form = $( '<div>' + r.data.form + '</div>' );
control.hook( 'formUpdate', sanitized_form );
sanitized_inputs = sanitized_form.find( ':input, option' );
has_same_inputs_in_response = control._getInputsSignature( inputs ) === control._getInputsSignature( sanitized_inputs );
if ( has_same_inputs_in_response ) {
inputs.each( function ( i ) {
var input = $( this ),
sanitized_input = $( sanitized_inputs[i] ),
property = control._getInputStatePropertyName( this ),
state,
sanitized_state;
state = input.data( 'state' + update_number );
sanitized_state = sanitized_input.prop( property );
input.data( 'sanitized', sanitized_state );
if ( state !== sanitized_state ) {
// Only update now if not currently focused on it,
// so that we don't cause the cursor
// it will be updated upon the change event
if ( args.ignore_active_element || ! input.is( document.activeElement ) ) {
input.prop( property, sanitized_state );
}
control.hook( 'unsanitaryField', input, sanitized_state, state );
} else {
control.hook( 'sanitaryField', input, state );
}
} );
control.hook( 'formUpdated', sanitized_form );
} else {
widget_content.html( sanitized_form.html() );
if ( element_id_to_refocus ) {
// not using jQuery selector so we don't have to worry about escaping IDs with brackets and other characters
$( document.getElementById( element_id_to_refocus ) )
.prop( {
selectionStart: active_input_selection_start,
selectionEnd: active_input_selection_end
} )
.focus();
}
control.hook( 'formRefreshed' );
}
/**
* If the old instance is identical to the new one, there is nothing new
* needing to be rendered, and so we can preempt the event for the
* preview finishing loading.
*/
is_instance_identical = _( control.setting() ).isEqual( r.data.instance );
if ( ! is_instance_identical ) {
control.is_widget_updating = true; // suppress triggering another updateWidget
control.setting( r.data.instance );
control.is_widget_updating = false;
}
if ( complete_callback ) {
complete_callback.call( control, null, { no_change: is_instance_identical, ajax_finished: true } );
}
} else {
message = self.i18n.error;
if ( r.data && r.data.message ) {
message = r.data.message;
}
if ( complete_callback ) {
complete_callback.call( control, message );
} else {
widget_content.prepend( '<p class="widget-error"><strong>' + message + '</strong></p>' );
}
}
} );
jqxhr.fail( function ( jqXHR, textStatus ) {
if ( complete_callback ) {
complete_callback.call( control, textStatus );
}
} );
jqxhr.always( function () {
control.container.removeClass( 'previewer-loading' );
control.container.removeClass( 'widget-form-loading' );
inputs.each( function () {
$( this ).removeData( 'state' + update_number );
} );
processing( processing() - 1 );
} );
},
/**
* Expand the accordion section containing a control
* @todo it would be nice if accordion had a proper API instead of having to trigger UI events on its elements
*/
expandControlSection: function () {
var section = this.container.closest( '.accordion-section' );
if ( ! section.hasClass( 'open' ) ) {
section.find( '.accordion-section-title:first' ).trigger( 'click' );
}
},
/**
* Expand the widget form control
*/
expandForm: function () {
this.toggleForm( true );
},
/**
* Collapse the widget form control
*/
collapseForm: function () {
this.toggleForm( false );
},
/**
* Expand or collapse the widget control
*
* @param {boolean|undefined} [do_expand] If not supplied, will be inverse of current visibility
*/
toggleForm: function ( do_expand ) {
var control = this, widget, inside, complete;
widget = control.container.find( 'div.widget:first' );
inside = widget.find( '.widget-inside:first' );
if ( typeof do_expand === 'undefined' ) {
do_expand = ! inside.is( ':visible' );
}
// Already expanded or collapsed, so noop
if ( inside.is( ':visible' ) === do_expand ) {
return;
}
complete;
if ( do_expand ) {
// Close all other widget controls before expanding this one
wp.customize.control.each( function ( other_control ) {
if ( control.params.type === other_control.params.type && control !== other_control ) {
other_control.collapseForm();
}
} );
control.container.trigger( 'expand' );
control.container.addClass( 'expanding' );
complete = function () {
control.container.removeClass( 'expanding' );
control.container.addClass( 'expanded' );
control.container.trigger( 'expanded' );
};
if ( control.params.is_wide ) {
inside.animate( { width: 'show' }, 'fast', complete );
} else {
inside.slideDown( 'fast', complete );
}
} else {
control.container.trigger( 'collapse' );
control.container.addClass( 'collapsing' );
complete = function () {
control.container.removeClass( 'collapsing' );
control.container.removeClass( 'expanded' );
control.container.trigger( 'collapsed' );
};
if ( control.params.is_wide ) {
inside.animate( { width: 'hide' }, 'fast', complete );
} else {
inside.slideUp( 'fast', function() {
widget.css( { width:'', margin:'' } );
complete();
} );
}
}
},
/**
* Expand the containing sidebar section, expand the form, and focus on
* the first input in the control
*/
focus: function () {
var control = this;
control.expandControlSection();
control.expandForm();
control.container.find( ':focusable:first' ).focus().trigger( 'click' );
},
/**
* Get the position (index) of the widget in the containing sidebar
*
* @throws Error
* @returns {Number}
*/
getWidgetSidebarPosition: function () {
var control = this,
sidebar_widget_ids,
position;
sidebar_widget_ids = control.getSidebarWidgetsControl().setting();
position = _.indexOf( sidebar_widget_ids, control.params.widget_id );
if ( position === -1 ) {
throw new Error( 'Widget was unexpectedly not present in the sidebar.' );
}
return position;
},
/**
* Move widget up one in the sidebar
*/
moveUp: function () {
this._moveWidgetByOne( -1 );
},
/**
* Move widget up one in the sidebar
*/
moveDown: function () {
this._moveWidgetByOne( 1 );
},
/**
* @private
*
* @param {Number} offset 1|-1
*/
_moveWidgetByOne: function ( offset ) {
var control = this,
i,
sidebar_widgets_setting,
sidebar_widget_ids,
adjacent_widget_id;
i = control.getWidgetSidebarPosition();
sidebar_widgets_setting = control.getSidebarWidgetsControl().setting;
sidebar_widget_ids = Array.prototype.slice.call( sidebar_widgets_setting() ); // clone
adjacent_widget_id = sidebar_widget_ids[i + offset];
sidebar_widget_ids[i + offset] = control.params.widget_id;
sidebar_widget_ids[i] = adjacent_widget_id;
sidebar_widgets_setting( sidebar_widget_ids );
},
/**
* Toggle visibility of the widget move area
*
* @param {Boolean} [toggle]
*/
toggleWidgetMoveArea: function ( toggle ) {
var control = this, move_widget_area;
move_widget_area = control.container.find( '.move-widget-area' );
if ( typeof toggle === 'undefined' ) {
toggle = ! move_widget_area.hasClass( 'active' );
}
if ( toggle ) {
// reset the selected sidebar
move_widget_area.find( '.selected' ).removeClass( 'selected' );
move_widget_area.find( 'li' ).filter( function () {
return $( this ).data( 'id' ) === control.params.sidebar_id;
} ).addClass( 'selected' );
control.container.find( '.move-widget-btn' ).prop( 'disabled', true );
}
move_widget_area.toggleClass( 'active', toggle );
},
/**
* Inverse of WidgetCustomizer.getControlInstanceForWidget
* @return {jQuery}
*/
getPreviewWidgetElement: function () {
var control = this,
widget_customizer_preview = self.getPreviewWindow().wp.customize.WidgetCustomizerPreview;
return widget_customizer_preview.getWidgetElement( control.params.widget_id );
},
/**
* Inside of the customizer preview, scroll the widget into view
*/
scrollPreviewWidgetIntoView: function () {
// @todo scrollIntoView() provides a robust but very poor experience. Animation is needed. See https://github.com/x-team/wp-widget-customizer/issues/16
},
/**
* Highlight the widget control and section
*/
highlightSectionAndControl: function() {
var control = this, target_element;
if ( control.container.is( ':hidden' ) ) {
target_element = control.container.closest( '.control-section' );
} else {
target_element = control.container;
}
$( '.widget-customizer-highlighted' ).removeClass( 'widget-customizer-highlighted' );
target_element.addClass( 'widget-customizer-highlighted' );
setTimeout( function () {
target_element.removeClass( 'widget-customizer-highlighted' );
}, 500 );
},
/**
* Add the widget-customizer-highlighted-widget class to the widget for 500ms
*/
highlightPreviewWidget: function () {
var control = this, widget_el, root_el;
widget_el = control.getPreviewWidgetElement();
root_el = widget_el.closest( 'html' );
root_el.find( '.widget-customizer-highlighted-widget' ).removeClass( 'widget-customizer-highlighted-widget' );
widget_el.addClass( 'widget-customizer-highlighted-widget' );
setTimeout( function () {
widget_el.removeClass( 'widget-customizer-highlighted-widget' );
}, 500 );
}
} );
/**
* Capture the instance of the Previewer since it is private
*/
OldPreviewer = wp.customize.Previewer;
wp.customize.Previewer = OldPreviewer.extend( {
initialize: function( params, options ) {
self.previewer = this;
OldPreviewer.prototype.initialize.call( this, params, options );
this.bind( 'refresh', this.refresh );
}
} );
/**
* Given a widget control, find the sidebar widgets control that contains it.
* @param {string} widget_id
* @return {object|null}
*/
self.getSidebarWidgetControlContainingWidget = function ( widget_id ) {
var found_control = null;
// @todo this can use widget_id_to_setting_id(), then pass into wp.customize.control( x ).getSidebarWidgetsControl()
wp.customize.control.each( function ( control ) {
if ( control.params.type === 'sidebar_widgets' && -1 !== _.indexOf( control.setting(), widget_id ) ) {
found_control = control;
}
} );
return found_control;
};
/**
* Given a widget_id for a widget appearing in the preview, get the widget form control associated with it
* @param {string} widget_id
* @return {object|null}
*/
self.getWidgetFormControlForWidget = function ( widget_id ) {
var found_control = null;
// @todo We can just use widget_id_to_setting_id() here
wp.customize.control.each( function ( control ) {
if ( control.params.type === 'widget_form' && control.params.widget_id === widget_id ) {
found_control = control;
}
} );
return found_control;
};
/**
* @returns {Window}
*/
self.getPreviewWindow = function (){
return $( '#customize-preview' ).find( 'iframe' ).prop( 'contentWindow' );
};
/**
* Available Widgets Panel
*/
self.availableWidgetsPanel = {
active_sidebar_widgets_control: null,
selected_widget_tpl: null,
container: null,
filter_input: null,
/**
* Set up event listeners
*/
setup: function () {
var panel = this;
panel.container = $( '#available-widgets' );
panel.filter_input = $( '#available-widgets-filter' ).find( 'input' );
self.available_widgets.on( 'change update', panel.update_available_widgets_list );
panel.update_available_widgets_list();
// 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.
$( '#customize-controls' ).on( 'click keydown', function ( e ) {
var is_add_new_widget_btn = $( e.target ).is( '.add-new-widget, .add-new-widget *' );
if ( $( 'body' ).hasClass( 'adding-widget' ) && ! is_add_new_widget_btn ) {
panel.close();
}
} );
// Close the panel if the URL in the preview changes
self.previewer.bind( 'url', function () {
panel.close();
} );
// Submit a selection when clicked or keypressed
panel.container.find( '.widget-tpl' ).on( 'click keypress', function( event ) {
// Only proceed with keypress if it is Enter or Spacebar
if ( event.type === 'keypress' && ( event.which !== 13 && event.which !== 32 ) ) {
return;
}
panel.submit( this );
} );
panel.filter_input.on( 'input keyup change', function( event ) {
var first_visible_widget;
self.available_widgets.doSearch( event.target.value );
// Remove a widget from being selected if it is no longer visible
if ( panel.selected_widget_tpl && ! panel.selected_widget_tpl.is( ':visible' ) ) {
panel.selected_widget_tpl.removeClass( 'selected' );
panel.selected_widget_tpl = null;
}
// If a widget was selected but the filter value has been cleared out, clear selection
if ( panel.selected_widget_tpl && ! event.target.value ) {
panel.selected_widget_tpl.removeClass( 'selected' );
panel.selected_widget_tpl = null;
}
// If a filter has been entered and a widget hasn't been selected, select the first one shown
if ( ! panel.selected_widget_tpl && event.target.value ) {
first_visible_widget = panel.container.find( '> .widget-tpl:visible:first' );
if ( first_visible_widget.length ) {
panel.select( first_visible_widget );
}
}
} );
// Select a widget when it is focused on
panel.container.find( ' > .widget-tpl' ).on( 'focus', function () {
panel.select( this );
} );
panel.container.on( 'keydown', function ( event ) {
var is_enter = ( event.which === 13 ),
is_esc = ( event.which === 27 ),
is_down = ( event.which === 40 ),
is_up = ( event.which === 38 ),
selected_widget_tpl = null,
first_visible_widget = panel.container.find( '> .widget-tpl:visible:first' ),
last_visible_widget = panel.container.find( '> .widget-tpl:visible:last' ),
is_input_focused = $( event.target ).is( panel.filter_input );
if ( is_down || is_up ) {
if ( is_down ) {
if ( is_input_focused ) {
selected_widget_tpl = first_visible_widget;
} else if ( panel.selected_widget_tpl && panel.selected_widget_tpl.nextAll( '.widget-tpl:visible' ).length !== 0 ) {
selected_widget_tpl = panel.selected_widget_tpl.nextAll( '.widget-tpl:visible:first' );
}
} else if ( is_up ) {
if ( is_input_focused ) {
selected_widget_tpl = last_visible_widget;
} else if ( panel.selected_widget_tpl && panel.selected_widget_tpl.prevAll( '.widget-tpl:visible' ).length !== 0 ) {
selected_widget_tpl = panel.selected_widget_tpl.prevAll( '.widget-tpl:visible:first' );
}
}
panel.select( selected_widget_tpl );
if ( selected_widget_tpl ) {
selected_widget_tpl.focus();
} else {
panel.filter_input.focus();
}
return;
}
// If enter pressed but nothing entered, don't do anything
if ( is_enter && ! panel.filter_input.val() ) {
return;
}
if ( is_enter ) {
panel.submit();
} else if ( is_esc ) {
panel.close( { return_focus: true } );
}
} );
},
/**
* Updates widgets list.
*/
update_available_widgets_list: function() {
var panel = self.availableWidgetsPanel;
// First hide all widgets...
panel.container.find( '.widget-tpl' ).hide();
// ..and then show only available widgets which could be filtered
self.available_widgets.each( function ( widget ) {
var widget_tpl = $( '#widget-tpl-' + widget.id );
widget_tpl.toggle( ! widget.get( 'is_disabled' ) );
if ( widget.get( 'is_disabled' ) && widget_tpl.is( panel.selected_widget_tpl ) ) {
panel.selected_widget_tpl = null;
}
} );
},
/**
* @param widget_tpl
*/
select: function ( widget_tpl ) {
var panel = this;
panel.selected_widget_tpl = $( widget_tpl );
panel.selected_widget_tpl.siblings( '.widget-tpl' ).removeClass( 'selected' );
panel.selected_widget_tpl.addClass( 'selected' );
},
submit: function ( widget_tpl ) {
var panel = this, widget_id, widget;
if ( ! widget_tpl ) {
widget_tpl = panel.selected_widget_tpl;
}
if ( ! widget_tpl || ! panel.active_sidebar_widgets_control ) {
return;
}
panel.select( widget_tpl );
widget_id = $( panel.selected_widget_tpl ).data( 'widget-id' );
widget = self.available_widgets.findWhere( {id: widget_id} );
if ( ! widget ) {
throw new Error( 'Widget unexpectedly not found.' );
}
panel.active_sidebar_widgets_control.addWidget( widget.get( 'id_base' ) );
panel.close();
},
/**
* @param sidebars_widgets_control
*/
open: function ( sidebars_widgets_control ) {
var panel = this;
panel.active_sidebar_widgets_control = sidebars_widgets_control;
// Wide widget controls appear over the preview, and so they need to be collapsed when the panel opens
_( sidebars_widgets_control.getWidgetFormControls() ).each( function ( control ) {
if ( control.params.is_wide ) {
control.collapseForm();
}
} );
$( 'body' ).addClass( 'adding-widget' );
panel.container.find( '.widget-tpl' ).removeClass( 'selected' );
self.available_widgets.doSearch( '' );
panel.filter_input.focus();
},
/**
* Hide the panel
*/
close: function ( options ) {
var panel = this;
options = options || {};
if ( options.return_focus && panel.active_sidebar_widgets_control ) {
panel.active_sidebar_widgets_control.container.find( '.add-new-widget' ).focus();
}
panel.active_sidebar_widgets_control = null;
panel.selected_widget_tpl = null;
$( 'body' ).removeClass( 'adding-widget' );
panel.filter_input.val( '' );
}
};
/**
* @param {String} widget_id
* @returns {Object}
*/
function parse_widget_id( widget_id ) {
var matches, parsed = {
number: null,
id_base: null
};
matches = widget_id.match( /^(.+)-(\d+)$/ );
if ( matches ) {
parsed.id_base = matches[1];
parsed.number = parseInt( matches[2], 10 );
} else {
// likely an old single widget
parsed.id_base = widget_id;
}
return parsed;
}
/**
* @param {String} widget_id
* @returns {String} setting_id
*/
function widget_id_to_setting_id( widget_id ) {
var parsed = parse_widget_id( widget_id ), setting_id;
setting_id = 'widget_' + parsed.id_base;
if ( parsed.number ) {
setting_id += '[' + parsed.number + ']';
}
return setting_id;
}
return self;
}( jQuery ));