Created
May 24, 2013 23:06
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Demonstration plugin for my Introduction to WordPress Plugin Development course for Pluralsight. Download the full source here: http://cl.ly/3u153a2N1v32
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| <?php | |
| /* | |
| Plugin Name: Pluralsight plugin development demo | |
| Description: This is a demonstration plugin for the Introduction to WordPress Plugin Development course on Pluralsight. | |
| Author: Chris Reynolds | |
| Version: 1.0 | |
| */ | |
| function ps_plugindev_options_page() { | |
| ?> | |
| <div class="wrap"> | |
| <?php screen_icon(); ?> | |
| <h2><?php _e( 'Pluralsight Plugin Development Demo', 'ps-demo' ); ?></h2> | |
| <p><?php _e( 'This is a demonstration plugin for Introduction to WordPress Plugin Development. This plugin will add a sharing link underneath the post content.', 'ps-demo' ); ?></p> | |
| <form method="POST" action="options.php"> | |
| <?php | |
| settings_fields( 'ps_plugindev_settings' ); | |
| ?> | |
| <table class="form-table"> | |
| <tbody> | |
| <?php ps_plugindev_do_options(); ?> | |
| </tbody> | |
| </table> | |
| <input type="submit" class="button-primary" value="<?php _e( 'Save Options', 'ps-demo' ); ?>" /> | |
| <input type="hidden" name="ps-plugindev-submit" value="Y" /> | |
| </form> | |
| </div> | |
| <?php | |
| } | |
| function ps_plugindev_menu() { | |
| add_submenu_page( 'options-general.php', __( 'Plugin Demo', 'ps-demo' ), __( 'Plugin Demo', 'ps-demo' ), 'administrator', 'ps_plugindev', 'ps_plugindev_options_page' ); | |
| } | |
| add_action( 'admin_menu', 'ps_plugindev_menu' ); | |
| function ps_plugindev_init() { | |
| register_setting( 'ps_plugindev_settings', 'ps_plugindev', 'ps_plugindev_validate' ); | |
| } | |
| add_action( 'admin_init', 'ps_plugindev_init' ); | |
| function ps_plugindev_do_options() { | |
| $options = get_option( 'ps_plugindev' ); | |
| ob_start(); | |
| ?> | |
| <tr valign="top"><th scope="row"><?php _e( 'Sharing text', 'ps-demo' ); ?></th> | |
| <td> | |
| <?php | |
| if ( $options['sharing-text'] ) { | |
| $options['sharing-text'] = wp_kses($options['sharing-text']); | |
| } else { | |
| $options['sharing-text'] = __( 'Share this post', 'ps-demo' ); | |
| } | |
| ?> | |
| <input type="text" id="sharing-text" name="ps_plugindev[sharing-text]" width="30" value="<?php echo $options['sharing-text']; ?>" /><br /> | |
| <label class="description" for="ps_plugindev[sharing-text]"><?php _e( 'Allows you to change the text that displays next to the sharing buttons', 'ps-demo' ); ?></label> | |
| </td> | |
| </tr> | |
| <tr valign="top"><th scope="row"><?php _e( 'What services do you want to share to?', 'ps-demo' ); ?></th> | |
| <td> | |
| <?php | |
| foreach ( ps_plugindev_services() as $service ) { | |
| $label = $service['label']; | |
| $value = $service['value']; | |
| echo '<label><input type="checkbox" name="ps_plugindev[' . $value . '] value="1" '; | |
| switch ($value) { | |
| case 'google' : | |
| if ( isset( $options['google'] ) ) { checked( 'on', $options['google'] ); } | |
| break; | |
| case 'twitter' : | |
| if ( isset( $options['twitter'] ) ) { checked( 'on', $options['twitter'] ); } | |
| break; | |
| case 'facebook' : | |
| if ( isset( $options['facebook'] ) ) { checked( 'on', $options['facebook'] ); } | |
| break; | |
| case 'stumbleupon' : | |
| if ( isset( $options['stumbleupon'] ) ) { checked( 'on', $options['stumbleupon'] ); } | |
| break; | |
| case 'digg' : | |
| if ( isset( $options['digg'] ) ) { checked( 'on', $options['digg'] ); } | |
| break; | |
| case 'email' : | |
| if ( isset( $options['email'] ) ) { checked( 'on', $options['email'] ); } | |
| break; | |
| } | |
| echo '/> ' . esc_attr($label) . '</label><br />'; | |
| } | |
| ?> | |
| </td> | |
| <?php | |
| } | |
| function ps_plugindev_services() { | |
| $services = array( | |
| 'google' => array( | |
| 'value' => 'google', | |
| 'label' => __( 'Google+', 'ps-demo' ) | |
| ), | |
| 'twitter' => array( | |
| 'value' => 'twitter', | |
| 'label' => __( 'Twitter', 'ps-demo' ) | |
| ), | |
| 'facebook' => array( | |
| 'value' => 'facebook', | |
| 'label' => __( 'Facebook', 'ps-demo' ) | |
| ), | |
| 'stumbleupon' => array( | |
| 'value' => 'stumbleupon', | |
| 'label' => __( 'StumbleUpon', 'ps-demo' ) | |
| ), | |
| 'digg' => array( | |
| 'value' => 'digg', | |
| 'label' => __( 'Digg', 'ps-demo' ) | |
| ), | |
| 'email' => array( | |
| 'value' => 'email', | |
| 'label' => __( 'Email', 'ps-demo' ) | |
| ), | |
| ); | |
| return $services; | |
| } | |
| function ps_plugindev_content_filter( $content ) { | |
| $options = get_option( 'ps_plugindev' ); | |
| if ( !$options['sharing-text'] ) { | |
| $options['sharing-text'] = __( 'Share this post', 'ps-demo' ); | |
| } | |
| $new_content = '<div class="ps-plugindev-sharing postmeta"><strong>' . $options['sharing-text'] . '</strong><br />'; | |
| if ( isset( $options['google'] ) ) { | |
| $new_content .= ps_plugindev_do_google_button(); | |
| } | |
| if ( isset( $options['twitter'] ) ) { | |
| $new_content .= ps_plugindev_do_twitter_button(); | |
| } | |
| if ( isset( $options['facebook'] ) ) { | |
| $new_content .= ps_plugindev_do_facebook_button(); | |
| } | |
| if ( isset( $options['stumbleupon'] ) ) { | |
| $new_content .= ps_plugindev_do_stumbleupon_button(); | |
| } | |
| if ( isset( $options['digg'] ) ) { | |
| $new_content .= ps_plugindev_do_digg_button(); | |
| } | |
| if ( isset( $options['email'] ) ) { | |
| $new_content .= ps_plugindev_do_email_button(); | |
| } | |
| $new_content .= '</div>'; | |
| return $content . $new_content; | |
| } | |
| add_filter( 'the_content', 'ps_plugindev_content_filter' ); | |
| function ps_plugindev_do_google_button() { | |
| $button = '<div id="google"><g:plusone size="medium"></g:plusone></div>'; | |
| return $button; | |
| } | |
| function ps_plugindev_do_twitter_button() { | |
| $button = '<div id="twitter"><a href="https://twitter.com/share" class="twitter-share-button">Tweet</a></div>'; | |
| $button .= '<script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?\'http\':\'https\';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+\'://platform.twitter.com/widgets.js\';fjs.parentNode.insertBefore(js,fjs);}}(document, \'script\', \'twitter-wjs\');</script>'; | |
| return $button; | |
| } | |
| function ps_plugindev_do_facebook_button() { | |
| global $post; | |
| $button = '<div id="facebook" class="fb-like" data-href="' . get_permalink( $post->ID ) . '" data-send="false" data-layout="button_count" data-width="100" data-show-faces="false"></div>'; | |
| return $button; | |
| } | |
| function ps_plugindev_do_stumbleupon_button() { | |
| $button = '<div id="stumbleupon"><su:badge layout="1"></su:badge></div>'; | |
| return $button; | |
| } | |
| function ps_plugindev_do_digg_button() { | |
| global $post; | |
| $link = urlencode( get_permalink( $post->ID ) ); | |
| $image = plugins_url( 'img/100x20-digg-button.gif', __FILE__ ); | |
| $button = '<div id="digg"><a href="http://digg.com/submit?phase=2&url=' . $link . '"><img src="' . $image . '" height="16" /></a></div>'; | |
| return $button; | |
| } | |
| function ps_plugindev_do_email_button() { | |
| global $post; | |
| $title = get_the_title( $post->ID ); | |
| $image = plugins_url( 'img/email-icon.gif', __FILE__ ); | |
| $button = '<div id="email"><a href="mailto:?subject=' . $title . '&body=This is a cool post: <a href=' . get_permalink( $post->ID ) . '>' . $title . '</a>"><img src="' . $image . '" /> ' . __( 'Email this', 'ps-demo' ) . '</a></div>'; | |
| return $button; | |
| } | |
| function ps_plugindev_head_scripts() { | |
| $options = get_option( 'ps_plugindev' ); | |
| if ( isset( $options['facebook'] ) && !is_admin() ) { | |
| ?> | |
| <div id="fb-root"></div> | |
| <script>(function(d, s, id) { | |
| var js, fjs = d.getElementsByTagName(s)[0]; | |
| if (d.getElementById(id)) return; | |
| js = d.createElement(s); js.id = id; | |
| js.src = "//connect.facebook.net/en_US/all.js#xfbml=1&appId=448961491860552"; | |
| fjs.parentNode.insertBefore(js, fjs); | |
| }(document, 'script', 'facebook-jssdk'));</script> | |
| <?php | |
| } | |
| if ( isset( $options['stumbleupon'] ) && !is_admin() ) { | |
| ?> | |
| <script type="text/javascript"> | |
| (function() { | |
| var li = document.createElement('script'); li.type = 'text/javascript'; li.async = true; | |
| li.src = ('https:' == document.location.protocol ? 'https:' : 'http:') + '//platform.stumbleupon.com/1/widgets.js'; | |
| var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(li, s); | |
| })(); | |
| </script> | |
| <?php | |
| } | |
| } | |
| add_action( 'wp_head', 'ps_plugindev_head_scripts' ); | |
| function ps_plugindev_scripts() { | |
| $options = get_option( 'ps_plugindev' ); | |
| if ( !is_admin() ) { | |
| if ( isset( $options['google'] ) ) { | |
| wp_enqueue_script( 'googleplus', 'https://apis.google.com/js/plusone.js' ); | |
| } | |
| wp_enqueue_style( 'ps-plugindev', plugins_url( 'css/style.css', __FILE__ ) ); | |
| } | |
| } | |
| add_action( 'wp_print_scripts', 'ps_plugindev_scripts' ); | |
| function ps_plugindev_validate($input) { | |
| $input['sharing-text'] = wp_filter_nohtml_kses( $input['sharing-text'] ); | |
| foreach ( ps_plugindev_services() as $service ) { | |
| $value = $service['value']; | |
| switch ($value) { | |
| case 'google' : | |
| if ( !array_key_exists( $input['google'], $value ) ) | |
| $input['google'] = $input['google']; | |
| break; | |
| case 'twitter' : | |
| if ( !array_key_exists( $input['twitter'], $value ) ) | |
| $input['twitter'] = $input['twitter']; | |
| break; | |
| case 'facebook' : | |
| if ( !array_key_exists( $input['facebook'], $value ) ) | |
| $input['facebook'] = $input['facebook']; | |
| break; | |
| case 'stumbleupon' : | |
| if ( !array_key_exists( $input['stumbleupon'], $value ) ) | |
| $input['stumbleupon'] = $input['stumbleupon']; | |
| break; | |
| case 'digg' : | |
| if ( !array_key_exists( $input['digg'], $value ) ) | |
| $input['digg'] = $input['digg']; | |
| break; | |
| case 'email' : | |
| if ( !array_key_exists( $input['email'], $value ) ) | |
| $input['email'] = $input['email']; | |
| break; | |
| } | |
| } | |
| return $input; | |
| } |
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| /* some styles for the sharing buttons */ | |
| .ps-plugindev-sharing #facebook, | |
| .ps-plugindev-sharing #stumbleupon, | |
| .ps-plugindev-sharing #digg, | |
| .ps-plugindev-sharing #email{ | |
| float: left; | |
| margin-right: 20px; | |
| } | |
| .ps-plugindev-sharing #google, | |
| .ps-plugindev-sharing #twitter { | |
| float: left; | |
| } | |
| .ps-plugindev-sharing { | |
| clear: both; | |
| } |
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WordPress update :Missing argument 2 for wp_kses()
Old
$options['sharing-text'] = wp_kses($options['sharing-text']);
New
$options['sharing-text'] = wp_kses($options['sharing-text'], array());