[英]Backbone event doesn't work in a Handlebars template
我是骨干新手,我不明白為什么這個事件不會觸發。 我嘗試了幾種不同的方法,但並非每種方法都有效。 屏幕正在渲染。 我在最新的cordova手機上進行了測試。
login.js
define(["jquery", "underscore", "kinvey", "handlebars", "text", "text!templates/Login.html"],
function ($, _, Kinvey, Handlebars, Text , source) {
var Login = Backbone.View.extend({
events: {
"touchend #submit": "loggati",
"touchend #signup": "goToSignup"
},
initialize: function () {
console.log("init");
/* won't go this way either
$('#submit').click(function(){
alert('ciao');
});
$('#signup').click(function(){
alert('ciao');
*/
});
},
render: function (eventName) {
console.log("rendering");
var template = Handlebars.compile(source);
var context = {color : "blue"};
var html=template(context);
$(document.body).html(html);
return this;
},
goToSignup: function () {
console.log("signup : fired");
//stuff
},
loggati: function() {
console.log("loggati : fired");
//stuff
}
});
return Login;
});
Login.html
<div data-role="header" >
<h1>Login</h1>
</div>
<div data-role="content">
<div data-role="fieldcontain">
<input id= "username" placeholder="Username" value="" type="text">
</div>
<div data-role="fieldcontain">
<input id= "password" placeholder="Password" value="" type="password">
</div>
<a data-role="button" id="submit">Sign In</a>
<a data-role="button" id="signup">Register</a>
</div>
router.js
define(["jquery", "underscore", "kinvey", "views/Login", "views/GetToken", "views/Game", "views/SignupPage", "views/Home", "views/Settings", "views/Rules"],
function ($, _, Kinvey, Login, GetToken, Game, SignupPage, Home, Settings, Rules) {
var Router= Backbone.Router.extend({
routes: {
"login": "login",
"getToken": "getToken",
"game": "game",
"signupPage": "signupPage",
"home": "home",
"settings": "settings",
"rules": "rules"
},
initialize: function () {
console.log('initialize');
this.currentView = undefined;
var page;
if( window.localStorage.getItem("username") && window.localStorage.getItem("username").length > 0)
{
console.log('trovato utente loggato');
document.getElementById("nomeSet").innerHTML = window.localStorage.getItem("username");
document.getElementById("tokenSet").innersHTML = window.localStorage.getItem("token");
page = new Home();
}
else
page = new Login();
this.changePage(page);
},
login: function () {
var page = new Login();
this.changePage(page);
},
getToken: function () {
var page = new GetToken({
});
this.changePage(page);
},
game: function () {
var page = new Game({
});
this.changePage(page);
},
signupPage: function () {
var page = new SignupPage({
});
this.changePage(page);
},
home: function () {
var page = new Home({
});
this.changePage(page);
},
settings: function () {
var page = new Settings({
});
this.changePage(page);
},
rules: function () {
var page = new Rules({
});
this.changePage(page);
},
changePage: function (page) {
console.log('changepage '+page);
if(this.currentView) {
this.currentView.remove();
this.currentView.off();
}
this.currentView = page;
page.render();
}
});
return Router;
});
使用事件委托將主干視圖的事件附加到其el
。 每個視圖都有一個el
,如果您自己不指定,則您的視圖將使用一個空的<div>
作為其el
。 您未在任何地方指定el
,因此您的視圖將為您創建<div>
作為el
。 render
方法通常如下所示:
render: function() {
var html = html_from_some_template;
this.$el.html(html);
return this;
}
但是你說的是:
$(document.body).html(html);
添加HTML。 你的觀點的el
是不是body
,因此您的活動的工作。
一個快速的解決方法是添加:
el: 'body'
更改為視圖定義,然后將render
更改為:
this.$el.html(html);
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