开发者

In YUI determine if an element exists that has a specific value

I'm fairly familiar with jQuery, but I'm working on a project in YUI, which I am totally new to, and am not sure how to accomplish this.

In essence, I need to display a js popup if a span element exists that has the text "Inactive" in it and is several steps down the tree from a div with a class of "list_subpanel_cases".

This is a rough example, but the point i开发者_JAVA百科s, this is dynamically built, so my only definite selectors are the div with the class and the descendant span with a text value of "Inactive".

<div class="list_subpanel_cases">
  <table>
    <tbody>
      <tr>
        <td>
          <span>Active</span>
        </td>
      </tr>
      <tr>
        <td>
          <span>Inactive</span>

And I need to find out if any spans exist with the text "Inactive".

Hope this isn't too confusing!


It appears that CSS3 selectors can't examine content (only attributes) so you'd have to use a selector for the candidate span tags and then use code to look at the content for a match. Here's one way to do that:

function findInactive() {
    var found = null;
    Y.all(".list_subpanel_cases span").some(function(node, index, nodeList) {
        if (node.getContent() == "Inactive") {
            found = node;
            return(true);   // stop looking for more matches
        }
        return(false);   // keep looking for more matches
    });
    return(found);
}

if (findInactive()) {
    // execute code here when the Inactive span exists
}

You can see it work here: http://jsfiddle.net/jfriend00/BVzqL/.

0

上一篇:

下一篇:

精彩评论

暂无评论...
验证码 换一张
取 消

最新问答

问答排行榜