classic-smilies.php

<?php
function classic_smilies_src( $old, $img ) {
	return get_template_directory_uri() . '/static/smillies/' . $img;
}

add_action( 'init', 'classic_smilies_init', 1 );
function classic_smilies_init() {

	// put the classic smilies images back
	global $wpsmiliestrans;
	$wpsmiliestrans = array(
	':mrgreen:' => 'icon_mrgreen.gif',
	':neutral:' => 'icon_neutral.gif',
	':twisted:' => 'icon_twisted.gif',
	  ':arrow:' => 'icon_arrow.gif',
	  ':shock:' => 'icon_eek.gif',
	  ':smile:' => 'icon_smile.gif',
	    ':???:' => 'icon_confused.gif',
	   ':cool:' => 'icon_cool.gif',
	   ':evil:' => 'icon_evil.gif',
	   ':grin:' => 'icon_biggrin.gif',
	   ':idea:' => 'icon_idea.gif',
	   ':oops:' => 'icon_redface.gif',
	   ':razz:' => 'icon_razz.gif',
	   ':roll:' => 'icon_rolleyes.gif',
	   ':wink:' => 'icon_wink.gif',
	    ':cry:' => 'icon_cry.gif',
	    ':eek:' => 'icon_surprised.gif',
	    ':lol:' => 'icon_lol.gif',
	    ':mad:' => 'icon_mad.gif',
	    ':sad:' => 'icon_sad.gif',
	      '8-)' => 'icon_cool.gif',
	      '8-O' => 'icon_eek.gif',
	      ':-(' => 'icon_sad.gif',
	      ':-)' => 'icon_smile.gif',
	      ':-?' => 'icon_confused.gif',
	      ':-D' => 'icon_biggrin.gif',
	      ':-P' => 'icon_razz.gif',
	      ':-o' => 'icon_surprised.gif',
	      ':-x' => 'icon_mad.gif',
	      ':-|' => 'icon_neutral.gif',
	      ';-)' => 'icon_wink.gif',
	// This one transformation breaks regular text with frequency.
	//     '8)' => 'icon_cool.gif',
	       '8O' => 'icon_eek.gif',
	       ':(' => 'icon_sad.gif',
	       ':)' => 'icon_smile.gif',
	       ':?' => 'icon_confused.gif',
	       ':D' => 'icon_biggrin.gif',
	       ':P' => 'icon_razz.gif',
	       ':o' => 'icon_surprised.gif',
	       ':x' => 'icon_mad.gif',
	       ':|' => 'icon_neutral.gif',
	       ';)' => 'icon_wink.gif',
	      ':!:' => 'icon_exclaim.gif',
	      ':?:' => 'icon_question.gif',
	);

	add_filter( 'smilies_src', 'classic_smilies_src', 10, 2 );
	
	// disable any and all mention of emoji's
	remove_action( 'wp_head', 'print_emoji_detection_script', 7 );
	remove_action( 'admin_print_scripts', 'print_emoji_detection_script' );
	remove_action( 'wp_print_styles', 'print_emoji_styles' );
	remove_action( 'admin_print_styles', 'print_emoji_styles' );	
	remove_filter( 'the_content_feed', 'wp_staticize_emoji' );
	remove_filter( 'comment_text_rss', 'wp_staticize_emoji' );	
	remove_filter( 'wp_mail', 'wp_staticize_emoji_for_email' );
	add_filter( 'tiny_mce_plugins', 'classic_smilies_rm_tinymce_emoji' );
	add_filter( 'the_content', 'classic_smilies_rm_additional_styles', 11 );
	add_filter( 'the_excerpt', 'classic_smilies_rm_additional_styles', 11 );
	add_filter( 'comment_text', 'classic_smilies_rm_additional_styles', 21 );
}

// filter function used to remove the tinymce emoji plugin
function classic_smilies_rm_tinymce_emoji( $plugins ) {
	return array_diff( $plugins, array( 'wpemoji' ) );
}

function classic_smilies_rm_additional_styles( $content ) {
	return str_replace( 'class="wp-smiley" style="height: 1em; max-height: 1em;"', 'class="wp-smiley"', $content );
}