directive例子2

(function() {
    angular.module('app.widgets')
        .directive('bsModalPlus', function($window, $sce, $modal) {
            return {
                restrict: 'A',
                scope: true,
                link: function(scope, element, attr, transclusion) {
                    // Directive options
                    var options = { scope: scope, element: element, show: false };
                    angular.forEach(['template', 'templateUrl', 'controller', 'controllerAs', 'contentTemplate', 'placement', 'backdrop', 'keyboard', 'html', 'container', 'animation', 'backdropAnimation', 'id', 'prefixEvent', 'prefixClass'], function(key) {
                        if (angular.isDefined(attr[key])) options[key] = attr[key];
                    });

                    // Default template url
                    if (!options['templateUrl'] || options['templateUrl'].length == 0)
                        options['templateUrl'] = 'widgets/modal/modal.template.html'

                    // use string regex match boolean attr falsy values, leave truthy values be
                    var falseValueRegExp = /^(false|0|)$/i;
                    angular.forEach(['backdrop', 'keyboard', 'html', 'container'], function(key) {
                        if (angular.isDefined(attr[key]) && falseValueRegExp.test(attr[key]))
                            options[key] = false;
                    });

                    // Support scope as data-attrs
                    angular.forEach(['title', 'content'], function(key) {
                        attr[key] && attr.$observe(key, function(newValue, oldValue) {
                            scope[key] = $sce.trustAsHtml(newValue);
                        });
                    });

                    //default container and placement
                    if (!options['container'])
                        options['container'] = 'body';

                    if (!options['backdrop'])
                        options['backdrop'] = 'static';

                    if (!options['placement'])
                        options['placement'] = 'center';

                    options['animation'] = 'am-fade-and-slide-top'

                    // Support scope as an object
                    scope.$data = {};
                    attr.bsModalPlus && scope.$watch(attr.bsModalPlus, function(newValue, oldValue) {
                        if (angular.isObject(newValue)) {
                            angular.extend(scope.$data, newValue);
                        } else {
                            scope.content = newValue;
                        }
                    }, true);

                    scope.showOkButton = !attr.showOkButton || attr.showOkButton == "true";
                    scope.showCloseButton = !attr.showCloseButton || attr.showCloseButton == "true";

                    // Initialize modal
                    var modal = $modal(options);
                    scope.$ok = function() {
                        if (scope.$broadcast("ok").defaultPrevented)
                            modal.hide();
                    };
                    scope.$close = function() {
                        scope.$broadcast("close");
                        modal.hide();
                    };

                    // Trigger
                    element.on(attr.trigger || 'click', modal.toggle);

                    // Garbage collection
                    scope.$on('$destroy', function() {
                        if (modal) modal.destroy();
                        options = null;
                        modal = null;
                    });

                }
            };

        });
})();