如何等待 Sproutcore 2.0 加载所有模板？
在我的应用程序中， 标记仅包含一个
我想在其中一个视图渲染后立即调用一个函数。重新插入是异步发生的，所以我不知道视图何时可用。
示例
Page<body>
<script type="text/x-handlebars">
...
{{view "MyApp.TweetInputView"}}
...
</script>
</body>
MyApp.TweetInputView = SC.View.extend({
init: function() {
// act like a singleton
MyApp.TweetInputView.instance = this;
return this._super();
},
focus: function() {
...
this.$().focus();
}
});
// if the URL is /tweets/new, focus on the tweet input view
$(function() {
if (window.location.pathname === '/tweets/new') {
// doesn't work, because the view hasn't been created yet:
MyApp.TweetInputView.instance.focus();
}
});
我也尝试过 SC.run.schedule('render', function() { MyApp.TweetInputView.instance.focus() ; }, 'call'); 希望 Sproutcore 在所有视图渲染和插入之后运行它，但情况似乎并非如此。
In my app, the <body> tag contains just a single <script type="text/x-handlebars> tag which contains all my views. Sproutcore 2.0 nicely adds a jQuery on-document-ready handler that parses those templates and renders them back into the DOM.
I'd like to call a function on one of the views as soon as it's rendered. The problem is that the re-insertion happens asynchronously, so I don't know when the view is available.
Example
Page
<body>
<script type="text/x-handlebars">
...
{{view "MyApp.TweetInputView"}}
...
</script>
</body>
View:
MyApp.TweetInputView = SC.View.extend({
init: function() {
// act like a singleton
MyApp.TweetInputView.instance = this;
return this._super();
},
focus: function() {
...
this.$().focus();
}
});
Initializer
// if the URL is /tweets/new, focus on the tweet input view
$(function() {
if (window.location.pathname === '/tweets/new') {
// doesn't work, because the view hasn't been created yet:
MyApp.TweetInputView.instance.focus();
}
});
I've also tried SC.run.schedule('render', function() { MyApp.TweetInputView.instance.focus(); }, 'call'); in the hopes that Sproutcore would run that after all the view rendering and insertion, but that does not seem to be the case.
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评论（1）
试试这个：
Try this: