websupporter

<?php
	/**
	 * Remove the autoemed functionality in WordPres
	 *
	 * By using this filter, URLs from Youtube, Twitter etc. won't transform into embeded contents
	 **/
	 
	add_action( 'init', 'fwe_remove_auto_embed' );
	function fwe_remove_auto_embed(){
		remove_filter( 

websupporter

<?php 
	/**
	 * This script adds Github Gist to the registered oEmbed providers in WordPress
	 **/
	wp_embed_register_handler( 'gist', '/https:\/\/gist\.github\.com\/(.*)\/(.*)\/?/i', 'wp_embed_handler_gist' );
	function wp_embed_handler_gist( $matches, $attr, $url, $rawattr ) {
		$embed = sprintf(
			'<script src="https://gist.github.com/%1$s/%2$s.js"></script>',
			esc_attr($matches[1]),
			esc_attr($matches[2])

websupporter

<?php
  /**
	 * Add Gfycat as oEmbed provider
	 **/
	wp_oembed_add_provider( 
		'#http(s)?://(www\.)?gfycat\.com/.*#i', 
		'https://api.gfycat.com/v1/oembed?url=', 
		true 
	);
?>

websupporter

<?php
  /**
   * If you have already included Gist as a handler, you could
   * use this Snippet to include the raw output as iframe...
   * ... if... well if github would permit it... but
   * just for demonstration purposes.
   * **/
   
	add_filter( 'embed_handler_html', 'fwe_embed_handler_html', 10, 4 );
	function fwe_embed_handler_html( $html, $url, $attr, $post_ID = null ){

websupporter

<?php
	add_filter( 'oembed_result', 'fwe_oembed_result', 10, 3 );
	function fwe_oembed_result( $result, $url, $args ){
		//Uebernommen aus wp-includes/class-oembed.php
		//L38ff
		$youtube_regex = array(
			'#http://((m|www)\.)?youtube\.com/watch.*#i',
			'#https://((m|www)\.)?youtube\.com/watch.*#i',
			'#http://youtu\.be/.*#i',
			'#https://youtu\.be/.*#i',

websupporter

jQuery( document ).ready( function(){ 
	jQuery( '.youtube-wrapper img' ).click( function(){
		var id = jQuery( this ).parent().attr( 'data-youtube' );
		var html = '<iframe width="480" height="270" src="https://www.youtube.com/embed/' + id  + '?feature=oembed" frameborder="0" allowfullscreen></iframe>';
		jQuery( this ).parent().html( html );
	});
});

websupporter

<?php
	add_filter( 'oembed_dataparse', 'fwe_oembed_dataparse', 10, 3 );
	function fwe_oembed_dataparse( $result, $data, $url ){
		//Uebernommen aus wp-includes/class-oembed.php
		//L38ff
		$youtube_regex = array(
			'#http://((m|www)\.)?youtube\.com/watch.*#i',
			'#https://((m|www)\.)?youtube\.com/watch.*#i',
			'#http://youtu\.be/.*#i',
			'#https://youtu\.be/.*#i',

websupporter

<?php
	add_filter( 'oembed_response_data', 'fwe_oembed_response_data', 11, 4 );
	function fwe_oembed_response_data(  $data, $post, $width, $height ){
		if ( ! is_object( $post ) )
			return $data;
		if( ! has_post_thumbnail( $post->ID ) )
			return $data;

		$thumbnail_id = get_post_thumbnail_id( $post->ID );
		$image = wp_get_attachment_image_src( $thumbnail_id, 'full' );

websupporter

<?php
/**
 * Contains the post embed template.
 *
 * When a post is embedded in an iframe, this file is used to
 * create the output.
 *
 * @package WordPress
 * @subpackage oEmbed
 * @since 4.4.0

websupporter

<?php
/**
 * Contains the post embed content template part.
 *
 * When a post is embedded in an iframe, this file is used to
 * create the content template part output if the active theme does not include
 * a content-embed.php template.
 *
 * @package WordPress
 * @subpackage Theme_Compat