plugin-watchers.js

angular.module('wizehive.services')
.service('PluginEvents', ['$rootScope', '$timeout', function($rootScope, $timeout) {

	var scopes = {
	    // This would be set up dynamically, maybe by plugin directive?
	    'action-panel-top': $rootScope.$new(false),
	    'top-nav': $rootScope.$new(false)
	};

	return function(location) {
	    // location = 'action-panel-top'
	    return {
	        $watch: function(expression, callback) {
	            scopes[location].$watch(expression, callback);
	        }
	    };
	};

}]);