引发一系列事件 Backbone event:name [英] Cause an array of events Backbone event:name

问题描述

_.extend(object, Backbone.Events);

object.on("myalert:one", function(msg) {
  document.body.innerHTML+=("eve1 " + ' msg:= '+msg+ ' ;name:= '+this.name);
},context);


object.on("myalert:two", function(msg) {
  document.body.innerHTML+=(" eve2 " + ' msg:= '+msg+ ' ;name:= '+this.name);
});

我希望所有事件都通过掩码 alert:.

I want сall all events are tied to this object with mask alert:.

   object.trigger("myalert", "param");

推荐答案

Backbone.Events 中没有任何命名空间，但您可以添加自己的命名空间.例如，像这样:

There isn't any namespacing in Backbone.Events but you could add your own. For example, something like this:

obj.trigger_matching = function(re) {
    var args = [''].concat([].splice.call(arguments, 1));
    for(name in this._events) {
        if(!name.match(re))
            continue;
        args[0] = name;
        this.trigger.apply(this, args);
    }
};

允许你说 obj.trigger_matching(/^myalert:/, 1, 2, 3) 并且正确的事情会发生.

would allow you to say obj.trigger_matching(/^myalert:/, 1, 2, 3) and The Right Thing would happen.

演示:http://jsfiddle.net/ambiguous/p8p5R/

这将触发多个 'all' 事件(每个 this.trigger.apply 一个)，这可能是您想要的，也可能不是.如果不是，则将 this.trigger.apply 调用替换为标准 trigger 这样你最多可以触发一个 'all' 事件.

That will trigger multiple 'all' events (one for each this.trigger.apply) which may or may not be what you want. If it isn't then replace the this.trigger.apply call with a custom version of the standard trigger so that you can trigger at most one 'all' event.

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