WordPress/wp-includes/js/customize-preview.dev.js

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(function( exports, $ ){
var api = wp.customize;
api.Preview = api.Messenger.extend({
/**
* Requires params:
* - url - the URL of preview frame
*
* @todo: Perhaps add a window.onbeforeunload dialog in case the theme
* somehow attempts to leave the page and we don't catch it
* (which really shouldn't happen).
*/
initialize: function( url, options ) {
var self = this;
api.Messenger.prototype.initialize.call( this, url, null, options );
this.body = $( document.body );
this.body.on( 'click.preview', 'a', function( event ) {
event.preventDefault();
self.send( 'url', $(this).attr('href') );
});
// You cannot submit forms.
// @todo: Namespace customizer settings so that we can mix the
// $_POST data with the customize setting $_POST data.
this.body.on( 'submit.preview', 'form', function( event ) {
event.preventDefault();
});
}
});
$( function() {
api.settings = window._wpCustomizeSettings;
if ( ! api.settings )
return;
var preview, body;
preview = new api.Preview( window.location.href );
$.each( api.settings.values, function( id, value ) {
api.set( id, value );
});
preview.bind( 'setting', function( args ) {
api.set.apply( api, args );
});
body = $(document.body);
// Auto update background color by default
api( 'background_color', function( value ) {
value.bind( function( to ) {
body.css( 'background-color', to ? '#' + to : '' );
});
});
});
})( wp, jQuery );