从BackboneJS子视图调用视图功能 [英] Call view function from subview with BackboneJS

问题描述

我想知道是否有可能从BackboneJS子视图调用视图功能。
如果是的话，它是如何工作的？

I'd like to know if it's possible to call a view function from a subview with BackboneJS. If yes, how it's working?

我要调用属于从子视图MAINVIEW功能你好。

I want to call the function "hello" which belong to the mainView from the subview.

也许，如果事件触发...

Maybe if event triggering...

例如：

var MainView = Backbone.View.extend({

    initialize: function() {
        this.$template = $(template);
        this.subview = new SubView();               
        this.render();              
    },

    render: function() {
        this.$el.html(this.$template);
        var element = this.$template.attr('id');
        this.subview.setElement('#'+element).render();
    },

    hello: function() {
        alert('Hello');
    }

});


var SubView = Backbone.View.extend({

    initialize: function() {
        this.$template = $(template);           
        this.render();              
    },

    render: function() {
        this.$el.html(this.$template);
        //Call view function ' hello '
        //parentView.hello();
    }

});

谢谢！

推荐答案

您可以从父视图传递引用到你的子视图：

You can pass a reference from your parent view to your subview:

http://jsfiddle.net/puleos/hecNz/

var MainView = Backbone.View.extend({

    initialize: function() {
        this.$template = $("<span>foo</span>");
        this.subview = new SubView({parent: this});               
        this.render();              
    },

    render: function() {
        this.$el.html(this.$template);
        var element = this.$template.attr('id');
        this.subview.setElement('#'+element).render();
    },

    hello: function() {
        alert('Hello');
    }

});


var SubView = Backbone.View.extend({

    initialize: function(options) {
        this.$template = $("<span>bar</span>");
        this.parent = options.parent;
        this.render();              
    },

    render: function() {
        this.$el.html(this.$template);
        this.parent.hello();
    }

});

var mainView = new MainView();

console.log(mainView);

这篇关于从BackboneJS子视图调用视图功能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！