ReactorFocusExample.js
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			/**
			* @provides phabricator-uiexample-reactor-focus
			* @requires javelin-install
			* javelin-view
			* javelin-util
			* javelin-dom
			* javelin-reactor-dom
			*/

			JX.install('ReactorFocusExample', {
			extend: 'View',
			members: {
			render: function(rendered_children) {
			var input = JX.$N('input');
			return [input, JX.RDOM.$DT(JX.RDOM.hasFocus(input))];
			}
			}
			});

phab/webroot/rsrc/js/application/uiexample/ReactorFocusExample.js7d2a18d88302stable