[4.4] Feed: Fixing link selection of AtomParser

[Hackwar]

Pull Request for Issue #38631 .

Summary of Changes

The feed parser for Atom feeds is selecting the wrong link as described in the original issue.

Testing Instructions

Copied from the original issue:

1. Create new Feed Display module
2. Set Feed URL to a Blogger Atom Feed eg https://www.failureasaservice.com/feeds/posts/default

Actual result BEFORE applying this Pull Request

Link is created using the first entry <link rel="replies"> which is an XML feed and not useful for normal users who just want to jump over to your post on Blogger.com.

<link rel="replies" type="application/atom+xml" href="https://www.failureasaservice.com/feeds/921417709640098202/comments/default" title="Post Comments"/>
    <link rel="replies" type="text/html" href="https://www.failureasaservice.com/2020/10/amd-killed-arm-in-data-center.html#comment-form" title="0 Comments"/>
    <link rel="edit" type="application/atom+xml" href="https://www.blogger.com/feeds/3991757369876144735/posts/default/921417709640098202"/>
    <link rel="self" type="application/atom+xml" href="https://www.blogger.com/feeds/3991757369876144735/posts/default/921417709640098202"/>
    <link rel="alternate" type="text/html" href="https://www.failureasaservice.com/2020/10/amd-killed-arm-in-data-center.html" title="AMD Killed ARM in the Data Center"/>

Expected result AFTER applying this Pull Request

Links should use the <link rel="alternate"> entry creating a clickable jump back to the Blogger page.

Link to documentations

Please select:

• Documentation link for docs.joomla.org:

• No documentation changes for docs.joomla.org needed

• Pull Request link for manual.joomla.org:

• No documentation changes for manual.joomla.org needed

[fgsw]

Without the pr a click on 'FaaS - Failure as a Service' and 'AMD Killed ARM in the Data Center' opens

PR applied only the first link opens the above window.

[tomsrocket]

I have tested this item ✅ successfully on 231e360

The links on the feed headlines go to the article html pages. that is good.

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[TLWebdesign]

Hi @Hackwar i'm testing this PR but i don't see a change in the dom of the urls of the blog items in the feed. they all have rel="noopener" even after applying the patch. But i do notice a change in behaviour as that now it opens the actual article instead of the feed link when clicking on the items. Seems like a half successfull test no?

[Hackwar]

@TLWebdesign that is the expected behavior, so your test would be successfull.

[TLWebdesign]

I have tested this item ✅ successfully on 231e360

Tested successfully

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[richard67]

RTC

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[MacJoom]

Thank you!