渲染封闭的木偶视图 [英] Rendering a closed Marionette view

问题描述

封闭的Marionette视图是否应在重新渲染时重新委托已定义的事件(事件，modelEvents，CollectionEvents)?

Shouldn't a closed Marionette view re-delegate the defined events (events, modelEvents, CollectionEvents) when rendering again?

似乎我必须在关闭并重新渲染视图后手动调用委托事件.否则，视图将无法按预期工作.

It seems as if I have to manually call delegateEvents after closing and re-rendering a view. Otherwise the view won't work as expected.

http://jsfiddle.net/4DCeY/

var app = new Marionette.Application();

app.addRegions({
    main: '.main'
});

var MyView = Marionette.ItemView.extend({

    template: _.template('Hi, I\'m a view! Foo is: <%= foo %>'),

    modelEvents: {
        'change': 'onChange'
    },

    onChange: function() {
        alert('change!');
    }
});


var Model = Backbone.Model.extend({});


app.addInitializer(function() {
    var m = new Model({foo: 'bar'});
    var myView = new MyView({
        model: m
    });

    app.main.show(myView);
    myView.close();
    app.main.show(myView);

    m.set({foo: 'baz'});

});

$(document).ready(function(){
    app.start();
});

推荐答案

如果我正确地理解了您的问题，那么关于此的github问题有多个.

If I understand your question right, there are multiple open github issues about this.

例如:

https://github.com/marionettejs/backbone.marionette/pull/654 https://github.com/marionettejs/backbone.marionette/issues/622

上次我检查时，Derick(《木偶侠》的创建者)并不觉得重用封闭的视图应该是区域应做的事情.

Last time I checked, Derick (the creator of Marionette) didn't feel like reusing closed views should be something regions should do.

所以您可以

1. 只需创建一个新视图并显示该视图
2. 手动调用委托事件-但是我现在不记得有多个事件绑定的问题，因此请小心一点(现在不在工作，所以不能窥视代码，对不起)
3. 编写您自己的区域经理
4. 或等待，看看Derick是否将合并其中一个拉取请求

这篇关于渲染封闭的木偶视图的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！