removing unneeded options for mathjax-latex

wp-content/plugins/mathjax-latex/class-mathjax-latex-admin.php

@@ -105,6 +105,8 @@ EOT;
 			'kblog_mathjax_use_wplatex_syntax'
 		);
 
+        // AI patch: do not use cloudfare CDN
+        /*
 		$use_cdn = get_option( 'kblog_mathjax_use_cdn', true ) ? 'checked="true"' : '';
 
 		$this->admin_table_row(
@@ -123,7 +125,7 @@ EOT;
 			"<input type='textbox' name='kblog_mathjax_custom_location' id='kblog_mathjax_custom_location' $custom_location $custom_location_disabled>",
 			'kblog_mathjax_custom_location'
 		);
-
+        */
 		$options = $this->config_options();
 
 		$select_string = "<select name='kblog_mathjax_config' id='kblog_mathjax_config'>\n";

wp-content/plugins/mathjax-latex/class-mathjax-latex.php

@@ -150,13 +150,15 @@ class MathJax_Latex {
 			return;
 		}
 
+        // AI patch: remove the use of the cloudfare CDN!
 		// initialise option for existing MathJax-LaTeX users
+        /*
 		if ( get_option( 'kblog_mathjax_use_cdn' ) || ! get_option( 'kblog_mathjax_custom_location' ) ) {
 			$mathjax_location = 'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js';
 		} else {
 			$mathjax_location = get_option( 'kblog_mathjax_custom_location' );
 		}
-
+        */
 		$mathjax_url = $mathjax_location . '?config=' . get_option( 'kblog_mathjax_config' );
 
 		wp_enqueue_script( 'mathjax', $mathjax_url, false, MATHJAX_VERSION, false );

wp-content/plugins/mathjax-latex/mathjax-latex-admin.php

@@ -105,25 +105,6 @@ EOT;
 			'kblog_mathjax_use_wplatex_syntax'
 		);
 
-		$use_cdn = get_option( 'kblog_mathjax_use_cdn', true ) ? 'checked="true"' : '';
-
-		$this->admin_table_row(
-			'Use MathJax CDN Service?',
-			'Allows use of the MathJax hosted content delivery network. By using this, you are agreeing to the  <a href="http://www.mathjax.org/download/mathjax-cdn-terms-of-service/">MathJax CDN Terms of Service</a>.',
-			"<input type='checkbox' name='kblog_mathjax_use_cdn' id='use_cdn' value='1' $use_cdn/>",
-			'use_cdn'
-		);
-
-		$custom_location_disabled = get_option( 'kblog_mathjax_use_cdn', true ) ? 'disabled="disabled"' : '';
-		$custom_location          = "value='" . esc_attr( get_option( 'kblog_mathjax_custom_location', '' ) ) . "'";
-
-		$this->admin_table_row(
-			'Custom MathJax location?',
-			'If you are not using the MathJax CDN enter the location of your MathJax script.',
-			"<input type='textbox' name='kblog_mathjax_custom_location' id='kblog_mathjax_custom_location' $custom_location $custom_location_disabled>",
-			'kblog_mathjax_custom_location'
-		);
-
 		$options = $this->config_options();
 
 		$select_string = "<select name='kblog_mathjax_config' id='kblog_mathjax_config'>\n";
@@ -148,9 +129,6 @@ EOT;
 	public function config_options() {
 		$options = array(
 			'default',
-			'Accessible',
-			'TeX-AMS_HTML',
-			'TeX-AMS-MML_HTMLorMML',
 		);
 
 		return $options;
@@ -169,25 +147,12 @@ EOT;
 			update_option( 'kblog_mathjax_latex_inline', sanitize_text_field( wp_unslash( $_POST['kblog_mathjax_latex_inline'] ) ) ); // input var okay
 		}
 
-		update_option( 'kblog_mathjax_use_wplatex_syntax', array_key_exists( 'kblog_mathjax_use_wplatex_syntax', $_POST ) ); // input var okay
-
-		update_option( 'kblog_mathjax_use_cdn', array_key_exists( 'kblog_mathjax_use_cdn', $_POST ) ); // input var okay
-
-		if ( array_key_exists( 'kblog_mathjax_custom_location', $_POST ) && isset( $_POST['kblog_mathjax_custom_location'] ) ) { // input var okay
-			update_option( 'kblog_mathjax_custom_location', esc_url_raw( wp_unslash( $_POST['kblog_mathjax_custom_location'] ) ) ); // input var okay
-		}
-
-		if ( array_key_exists( 'kblog_mathjax_config', $_POST ) && isset( $_POST['kblog_mathjax_config'] ) && // input var okay
-			in_array( sanitize_text_field( wp_unslash( $_POST['kblog_mathjax_config'] ) ), $this->config_options(), true ) // input var okay
-		) {
-			update_option( 'kblog_mathjax_config', sanitize_text_field( wp_unslash( $_POST['kblog_mathjax_config'] ) ) ); // input var okay
-		}
 	}
 
 	public function table_head() {
 		?>
 		<div class='wrap' id='mathjax-latex-options'>
-			<h2>Mathjax-Latex by Kblog</h2>
+			<h2>Mathjax-Latex</h2>
 			<form id='mathjaxlatex' name='mathjaxlatex' action='' method='POST'>
 				<?php wp_nonce_field( 'kblog_mathjax_latex_save_action', 'kblog_mathjax_latex_save_field', true ); ?>
 			<table class='form-table'>
@@ -203,21 +168,6 @@ EOT;
 		</form>
 
 		</div>
-		<script type="text/javascript">
-		jQuery(function($) {
-			if (typeof($.fn.prop) !== 'function') {
-				return; // ignore this for sites with jquery < 1.6
-			}
-			// enable or disable the cdn input field when checking/unchuecking the "use cdn" checkbox
-			var cdn_check = $('#use_cdn'),
-			cdn_location = $('#kblog_mathjax_custom_location');
-
-			cdn_check.change(function() {
-				var checked = cdn_check.is(':checked');
-				cdn_location.prop('disabled', checked);
-			});
-		});
-		</script>
 	<?php
 	}