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EmberJS 路由器存儲和重試轉(zhuǎn)換

2018-01-04 12:45 更新

描述

您也可以重試嘗試中止的轉(zhuǎn)換。

語句

Ember.Route.extend({
   beforeModel: function(transition) {
      if (!this.controllerFor('auth').get('userIsLoggedIn')) {
         var loginController = this.controllerFor('login');
         loginController.set('previousTransition', transition);
         this.transitionTo('login');
      }
   }
});

例子

<!DOCTYPE html>
<html>
   <head>
      <title>Emberjs Storing and Retrying a Transition</title>
      <!-- CDN's -->
      <script src="https://cdnjs.cloudflare.com/ajax/libs/handlebars.js/3.0.1/handlebars.min.js"></script>
      <script src="https://code.jquery.com/jquery-2.1.3.min.js"></script>
      <script src="https://cdnjs.cloudflare.com/ajax/libs/ember.js/1.10.0/ember.min.js"></script>
      <script src="https://builds.emberjs.com/tags/v1.10.0-beta.3/ember-template-compiler.js"></script>
      <script src="https://builds.emberjs.com/release/ember.debug.js"></script>
      <script src="https://builds.emberjs.com/beta/ember-data.js"></script>
   </head>
   <body>
      <script type="text/x-handlebars" data-template-name="application">
         <h1>Transition</h1>
         {{#link-to 'one'}}ONE{{/link-to}}
         {{#link-to 'two'}}TWO{{/link-to}}
         {{#link-to 'three'}}THREE{{/link-to}}
         {{outlet}}
      </script>

      <script type="text/x-handlebars" data-template-name="index">
         <h2>Index</h2>
      </script>

      <script type="text/x-handlebars" data-template-name="one">
         <h2>Orange</h2>
      </script>

      <script type="text/x-handlebars" data-template-name="two">
         <h2>Apple</h2>
      </script>

      <script type="text/x-handlebars" data-template-name="three">
         <h2>Lemon</h2>
      </script>

      <script type="text/javascript">
         App = Ember.Application.create({});

         App.AnimatedRoute = Ember.Route.extend({
            _transitioning: false,
            willExit: function() { return Ember.RSVP.resolve(); },
            willEnter: function() { return Ember.RSVP.resolve(); },
            deactivate: function() { this._transitioning = false; },

            afterModel: function(model, transition) {
               var route = this
               transition.then(function() {
                   new Ember.RSVP.Promise(function(resolve, _) {
                      Ember.run.next(this, function() {
                         route.willEnter().then(resolve);
                      });
                   });
               });

              this._super.apply(this, arguments);
             },

           actions: {
              willTransition: function(transition) {
                 var routeNames = transition.handlerInfos.map(function(o) {
                    return o.name;
                 });
                 var isParent = routeNames.indexOf(this.routeName) > -1;
                 if (isParent) { return true; }
                 if (this._transitioning) { return true; }

                 this._transitioning = true;
                 transition.abort();
                 this.willExit().then(function() { transition.retry(); });
              }
           }
         });

         App.BasicRoute = App.AnimatedRoute.extend({
            willEnter: function() {
               console.log("ENTER");
               return $('.outlet').fadeIn().promise();
            },
            willExit: function() {
               console.log("EXIT");
                 return $('.outlet').fadeOut().promise();
               }
         });

         Ember.Application.initializer({
             name: 'defaultRoute',
             initialize: function(container) {
                container.register('route:basic', App.BasicRoute);
             }
         });

         App.Router.map(function() {
            this.route('index', {path: '/'});
            this.route('one');
            this.route('two');
            this.route('three');
          });
      </script>
   </body>
</html>

輸出

讓我們執(zhí)行以下步驟，看看上面的代碼如何工作：

將上面的代碼保存在routing_strng_trans.html文件中
在瀏覽器中打開此HTML文件。

以上內(nèi)容是否對您有幫助：

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