Access the content of <content></content> with dart

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Marcelo Mayor

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Jan 17, 2014, 3:10:45 PM1/17/14
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Hello:  supose I we have:

    <html>
       <head> .... </head>
        <body>
             .
             .
             <custom-element>
                 <div><p> Hello Word!</p></div>
             </custom-element>
             .
             .
        </body>
    </html>

     In polymer element definition I push a <content></content> tag for render the children nodes of <custom-element> in html. How I can access to content of <content> in the script or class in Dart?? Thanks.

      

Eric Bidelman

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Jan 17, 2014, 3:15:56 PM1/17/14
to Marcelo Mayor, polymer-dev
In JS, content.getDistributedNodes() will return a NodeList of elements passing through the insertion point:


If there's not a direct equivalent in Dart, I'd ask on their list.



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Seth Ladd

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Jan 17, 2014, 4:04:45 PM1/17/14
to Eric Bidelman, Marcelo Mayor, polymer-dev
And here's the Dart equivalent: https://api.dartlang.org/docs/channels/stable/latest/dart_html/ContentElement.html#getDistributedNodes  (In the Dart case, it returns a List<Node>, but pretty close to the same thing)


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Marcelo Mayor

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Jan 17, 2014, 6:49:13 PM1/17/14
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Thanks. This problem is solved. Now the problem is that I can't cast the Node (List<Node> getDistributdNodes()) to

a polymer-element. Get a list of content items (ContentElement.children) gives an empty list.

I have tried many ways and nothing works. How cast it ?? Node to extended polymer class???

Thanks.

Seth Ladd

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Jan 17, 2014, 6:50:42 PM1/17/14
to Marcelo Mayor, polymer-dev
Hi Marcelo,

Can you email w...@dartlang.org , or better yet post your question (with code samples) to StackOverflow ? That way, more Dart developers can help you solve the issue.

Thanks!
Seth



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