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I have a script that adds some styles to OEmbedded content. At the moment its running on every page. I was wondering if anyone knew how to only enqueue the script if the page has an OEmbed on it.

I have no code to show as google doesn't return anything on the topic

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  • What kind of oembedded content is this? Do you have code for the oembedding we can see that might aid in generating the code to enqueue such a script/style? Do you have any ideas or starting points you think might be helpful for others researching an answer? – Tom J Nowell♦ Apr 28 '14 at 15:29
  • Fair enough on the edit sorry I was in a bad mood. I've developed this really negative feeling about using this site, but its really good and helpful and the people on it are quite cool, so i need to change that :) – danbrown Apr 28 '14 at 18:27
  • I assumed WordPress used the video or embed shortcode when spitting out the content. You may be able to use a version of this function to test if a oembed is being used. – Howdy_McGee♦ Apr 30 '14 at 14:08
  • Things to note for potential answers, oembeds dont use shortcodes ( though shortcodes can use oembeds, e.g. the oembed shortcode ), and there is a caching mechanism for oembeds in post content – Tom J Nowell♦ May 2 '14 at 11:03
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Well the first thing to consider is that the wp_enqueue_scripts action hook fires before the filters on the page/post content are run.

So I would add a function to the wp action hook and test the content for oembeds there.

add_action( 'wp', 'your_oembed_test_function' );
function your_oembed_test_function(){
    //earliest reliable hook to get $post variable
    global $post;

    //do your tests with $post content

    if( $oembed_exists_results ) wp_enqueue_script( $your_handle );

}

Because WP fires before wp_enqueue_scripts you will be able to choose which scripts/styles you want to show based on which oembeds you find in the content.

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  • Ah ok so would you check the content for whether it contained an url with an oembed in it? E.g. The oembed url is site.com/events/open-evening so you could just do a string check for site.com/events, and if it contained that, then you'd enqueue the event oembed script / style...? – danbrown May 13 '14 at 14:30
  • Yes, that is what I was getting at. Any filters specific to oembed are not fired until just before the content is being displayed, so that is why I am suggesting doing the check earlier. – Douglas.Sesar May 13 '14 at 17:46

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