WP Customizer : click to edit posts

gistfile1.js

// 1) Bind click events in the preview iframe.
(function( exports, $ ){
	var api = wp.customize;

	api.controlConstructor.myCustomControl = api.Control.extend({
		ready: function() {
			var control = this;

			// wait for the preview iframe to be ready
			var timer = setInterval(function(){
				if(control.previewer.preview && control.previewer.preview.iframe && control.previewer.preview.iframe[0].contentDocument) {
					clearInterval(timer);

					// get iframe document
					var doc = control.previewer.preview.iframe[0].contentDocument;

					// bind events using doc
				}
			}, 200);

		}
	});

})( wp, jQuery );

// 2) Reveal the correct panel

// old version
var $section = control.container.closest('.accordion-section');
if(!$section.hasClass('open')){
	$section.find('h3').click();
}

// new API version
wp.customize.section(control.section()).expand();

// simpler version ?
control.section.expand();