灰烬:在某个领域设定焦点的简单方法

问题描述

我正在寻找一种将焦点设置到文本字段或文本区域的简单方法.我宁愿不要将Jquery语法与Ember语法混合使用...，也不要为我想设置焦点的每个文本字段或文本区域创建单独的视图.

I am looking for a simple way to set focus into a textfield or textarea. I prefer not to mix Jquery syntax with Ember syntax ... and I prefer not to create seperate views for each textfield or textarea in which I ever want to set the focus.

有什么建议吗?

我的textArea字段很简单:

My textArea field is simply:

{{view Ember.TextArea valueBinding="body" placeholder="body"}}

谢谢马克

推荐答案

将焦点设置为 TextArea 的最直接方法是:

The most straightforward way to set the focus on a TextArea would be the following:

App.FocusTextArea = Ember.TextArea.extend({
  didInsertElement: function() {
    this._super(...arguments);
    this.$().focus();
  }
});

只要您想要这样的视图，就可以像这样使用它:

And the whenever you want such a view you can use it like so:

{{view App.FocusTextArea valueBinding="body" placeholder="body"}}

通过创建自 Ember.TextArea 扩展的自定义 TextArea 视图，您不必每次创建新视图时都在以所需的行为重用自定义视图.

By creating a custom TextArea view which extends from Ember.TextArea you are not creating each time a new view, you are reusing the custom view with the desired behavior.

希望有帮助.

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