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;(function($) {

 	"use strict";

 	wp.customize.controlConstructor['sinatra-spacing'] = wp.customize.Control.extend({

		ready: function() {

			'use strict';

			var control = this;

			// Linked button.
			control.container.on( 'click', '.sinatra-spacing-linked', function() {

				// Set up variables.
				var $this = $( this );
				
				// Remove linked class.
				$this.closest( 'ul' ).find( '.spacing-input' ).removeClass( 'linked' );
				
				// Remove class.
				$this.parent( '.spacing-link-values' ).removeClass( 'unlinked' );
			});

			// Unlinked button.
			control.container.on( 'click', '.sinatra-spacing-unlinked', function() {

				// Set up variables.
				var $this = $( this );
				
				// Remove linked class.
				$this.closest( 'ul' ).find( '.spacing-input' ).addClass( 'linked' );
				
				// Remove class.
				$this.parent( '.spacing-link-values' ).addClass( 'unlinked' );
			});

			// Values linked inputs.
			control.container.on( 'input', '.linked input', function() {
				var $val = $( this ).val();
				$(this).closest( '.spacing-input' ).siblings( '.linked' ).find( 'input' ).val( $val ).change();
			});

			// Change unit.
			control.container.find( '.sinatra-control-unit input[type="radio"]' ).on( 'change', function() {
				control.save_value();
			});

			// Store new inputs.
			control.container.on( 'change input', '.spacing-input input', function() {
				control.save_value();
			});

			// Reset default values.
			control.container.find( '.reset-defaults' ).on( 'click', function() {

				control.container.find( 'input[type="number"]' ).each( function() {
					$(this).val( $(this).data('default') );
				});

				control.save_value();
			});
		},

		save_value: function() {

			var new_val = {},
				devices = this.params.responsive,
				choices = this.params.choices,
				choice,
				device,
				units   = this.container.find( '.sinatra-control-unit' );

			if ( devices === undefined || devices.length == 0 ) {
				for ( choice in choices ) {
					new_val[ choice ] = this.container.find( '[data-spacing-choice="' + choice + '"]').val();
				}
			} else {
				for ( device in devices ) {
					new_val[ device ] = {};
					for ( choice in choices ) {
						new_val[ device ][ choice ] = this.container.find( '.control-responsive.' + device + ' [data-spacing-choice="' + choice + '"]').val();
					}
				}
			}

			if ( units.length ) {
				new_val.unit = units.find( 'input[type="radio"]:checked' ).val();
			}

			this.setting.set( new_val );
		},

	});

})(jQuery);