Backbone.js路由器无法检测到URL更改

Question

看起来这个example，路由器应该检测到导致URL更改的链接与其路由匹配。但是，单击由我的Handlebars模板生成的链接仅更改了URL，并没有触发路由器中的警报。不知何故，刷新后会触发路由，尽管URL失去了哈希标记。

我不确定为什么路由器没有捕捉到我的URL更改。如果它们有效，我更喜欢使用链接而不是Router.navigate。默认路线的路线确实有效。

下面的backbone.js代码在html head中的脚本中从$(document).ready运行。

Item Handlebars模板

{{#with lobby}}
<li id="lobby-{{id}}">
    <div class="lobby_info">{{name}} - {{owner}} - {{player_count}}/18</div> <a href="#lobby/{{id}}">Join</a>
 </li>
 {{/with}}

项目 Backbone 视图

var LobbyView = Backbone.View.extend({
    events: {
        "click .lobby_info": "expand_toggle",
    },

    expand_toggle: function(evt) {
        alert('Expand toggle');
    },

    render: function() {
        var template = Handlebars.compile($("#lobby_template").html());

        this.$el.html(template(this.model.toJSON()));

        return this;
    }
});

项目集合视图

var LobbiesView = Backbone.View.extend({
    events: {
        "submit #create_lobby_form": "create_lobby",
    },

    create_lobby: function(evt) {
        evt.preventDefault()

        var val = $('#lobby_name').val();

        socket.emit('create', val);

        $("#lobby_name").val("");
    },

    initialize: function() {
        var me = this;

        socket.on('create', function(lobby) {
            var lobby_item = new LobbyView({
                model: new LobbyModel({
                    lobby: lobby
                })
            });

            // render it to the DOM
            el = lobby_item.render().el;
            me.$("#lobbies").append(el);
       });

    },

    render: function() {
        var me = this;

        var template = Handlebars.compile($("#lobbies_template").html());

        $(this.el).html(template());

        return this;
    },
});

路由器

var Router = Backbone.Router.extend({
    // Match urls with methods
    routes: {
        "": "index",
        "lobby/:lobby_id": "lobby",
        "player/:player_id": "player"
    },

    index: function() {
        // connect to the websocket
        socket = io.connect();
        socket.emit('subscribe');
        var view = new LobbiesView({
            el: $("#container"),
        });

        view.render();
    },

    // View a lobby
    lobby: function(lobby_id) {
        alert('Viewing lobby' + lobby_id);
    },

    // View a player
    player: function(player_id) {
    },
});

// start backbone routing
var app = new Router();
Backbone.history.start({ pushState: true });

- TronPaul

Answer 1

您的问题出在{ pushState: true }。将其删除后，您的路由器将正常工作（已在控制台中测试）。如果pushState设置为true，则需要设置没有哈希的路由。

这是我正在测试的代码：

var Router = Backbone.Router.extend({
    routes: {
        "": "index",
        "lobby/:lobby_id": "lobby",
        "player/:player_id": "player",
        "*actions": "test"
    },

    test: function() { 
        console.log('test', arguments) 
    },

    index: function() {
        console.log('index', arguments);
    },

    player: function() {
        console.log('player', arguments);
    },

    lobby: function(lobby_id) {
        console.log('lobby', arguments);
    }
});

// start backbone routing
var app = new Router();
Backbone.history.start();

- mvbl fst

---

谢谢！我跟随的另一个例子来自python-socketio，它使用了{pushState: true}。我没有想到去查看html5推送状态的实际含义。 - TronPaul