What is the best way to apply inline styling to a video/gif embed code that is outside of the document object model (DOM)?

My collection includes a variety of embed codes from different gif/video sites, such as:

<iframe src="https://player.vimeo.com/video/122375452?title=0&byline=0&portrait=0" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>

Each site utilizes different methods for embedding, like 

<iframe>, <a>, <div>
, among others. What I need to accomplish is adding inline styles to the opening tag in the embed code dynamically. I considered registering the element, but that approach would introduce additional tags. How can I achieve this task, preferably using jQuery but JavaScript is also acceptable? Essentially, the embed code will be inserted into an input field and upon pasting, I need to apply the style and then display the element. Is my only option to use regex?

javascriptjqueryhtmlcss

Answer №1

Dealing with embeds that work through an <iframe> can be challenging because the content isn't available until it's in the DOM, requiring manipulation of the iframe content (unlike other types of embeds that inject directly into the DOM).

You could try this approach:

var embedCode = '<iframe src="https://player.vimeo.com/video/122375452?title=0&byline=0&portrait=0" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>';
var embed = $(embedCode);
embed.on('load', function() {
    // Content is loaded, apply styles as needed
    embed.contents().find('body').css({
        width: '100%';
        // Add more styles here...
    });
});
// Append the iframe to your DOM
$('#myEmbedContainer').append(embed);

If you're considering using regex, keep in mind that jQuery selectors may be more efficient for detecting and manipulating elements within the iframe.

var styleRecipient = embed.contents().find('body');
if (!styleRecipient.length) {
    styleRecipient = embed.contents().children('div').first();
    // Additional logic goes here...
}

It's a complex issue, so take it one step at a time for each embed source. Best of luck!

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