. */ // JSON services for PHP4 if(!function_exists('json_encode')) { include_once('json.php'); $GLOBALS['JSON_OBJECT'] = new Services_JSON(); function json_encode($value) { return $GLOBALS['JSON_OBJECT']->encode($value); } function json_decode($value) { return $GLOBALS['JSON_OBJECT']->decode($value); } } class RetweetAnywhereWidget extends WP_Widget { function RetweetAnywhereWidget() { $widget_ops = array('classname' => 'widget-retweet-anywhere', 'description' => __("A retweet widget for your blog")); $this->WP_Widget('widget-retweet-anywhere', __('Retweet Anywhere'), $widget_ops); } function widget($args, $instance) { extract($args); $title = apply_filters('widget_title', $instance['title']); $format = $instance['format']; $width = $instance['width']; $height = $instance['height']; global $wp_query; if ($wp_query->in_the_loop || is_singular()) { global $post; $post_id = $post->ID; } else $post_id = 0; echo $before_widget; echo ""; echo $after_widget; } function update($new_instance, $old_instance) { return $new_instance; } function form($instance) { $instance = wp_parse_args((array) $instance, array('title' => 'Retweet', 'format' => '%s %l', 'width' => '200', 'height' => '70')); $title = $instance['title']; $format = $instance['format']; $width = $instance['width']; $height = $instance['height']; ?>

Described in the FAQ

default_settings = array( "title" => "Retweet This Post", "format" => "%s %l", "shortener" => "native", "placement" => "end", "style" => "default", "opacity" => "0.5", "widget" => "no", ); // Load the plugin settings and merge with defaults $this->settings = (array) get_option("retweet-anywhere"); $this->settings = array_merge($this->default_settings, $this->settings); // Action hooks add_action("wp_enqueue_scripts", array(&$this, "wp_enqueue_scripts")); // AJAX hooks to get message add_action("wp_ajax_rta_getmessage", array(&$this, "ajax_getmessage")); add_action("wp_ajax_nopriv_rta_getmessage", array(&$this, "ajax_getmessage")); // Admin system customization (menus, notices, etc) add_action("admin_menu", array(&$this, "admin_menu")); add_action("admin_init", array(&$this, "admin_init")); add_action("admin_notices", array(&$this, "admin_notices")); // Shortcode and content filters if ($this->settings["placement"] != "manual") add_filter("the_content", array(&$this, "the_content")); add_shortcode("retweet-anywhere", array(&$this, "shortcode")); // Enable the shortcode for widget text if set in the settings if ($this->settings["widget"] == "yes") { add_filter("widget_text", "do_shortcode"); } // Administration notices if (empty($this->settings["api_key"])) $this->notices[] = "Please configure your Twitter API key in order to use Retweet Anywhere: Plugin Settings"; if ($this->settings["shortener"] == "bitly" && (empty($this->settings["bitly_username"]) || empty($this->settings["bitly_api_key"]))) $this->notices[] = "Bit.ly requires a username and a valid API key in order to work. Plugin Settings"; } // Widget registration function widgets_init() { register_widget("RetweetAnywhereWidget"); } // Settings management function admin_init() { register_setting('retweet-anywhere', 'retweet-anywhere'); } // Plugin settings page function admin_menu() { $page = add_submenu_page('options-general.php', 'Retweet Anywhere Settings', 'Retweet Anywhere', 'administrator', __FILE__, array(&$this, "settings_page")); add_action("admin_print_scripts-{$page}", array(&$this, "admin_print_scripts")); } // Admin panel scripts function admin_print_scripts() { wp_enqueue_script("retweet-anywhere-admin", plugins_url("/js/admin.js", __FILE__), array("jquery")); } // Settings page content function settings_page() { ?>

Retweet Anywhere Settings

General

These are the general settings used by the Retweet Anywhere plugin. Make sure you get the Twitter API key correct.

settings["widget"] == "yes") ? 'checked="checked"' : ''; ?>

Twitter API Key	" /> The Twitter API key (How do I get one?)
Popup Title	" /> Title goes above your tweet box, eg `Retweet This Post`.
Retweet Format	" /> The message format, eg: `%s %l (via @kovshenin)` described in the FAQ.
Enable Widget Shortcode	value="yes" /> If you're planning to use the shortcode in your text widgets, enable this.

URL Shortening

Pick your favorite shortening service and provide us with your account details.

URL Shortener	settings["shortener"]] = 'selected="selected"'; ?> Pick your favorite URL shortener
Bit.ly Username	" /> A valid bit.ly account username (Register for a bit.ly account)
Bit.ly API Key	" /> Your bit.ly API key (Where do I find it?)

Look & Feel

Customize the look and feel of your retweet button.

Placement	settings["placement"]] = 'selected="selected"'; ?> Select where you'd like your retweet button to appear. Details described in the FAQ.
Button Style	settings["style"]] = 'selected="selected"'; ?> This is a tricky one, default is a blue button, default text is simply a `Retweet` link. Use custom HTML to write your own.
Custom HTML	" /> Do not include the `<a> </a>` tags, they're done for you. Write only what's inside.
Background Opacity	settings["opacity"]] = 'selected="selected"'; ?> It's sometimes a good idea to fade the background so that retweeters could concentrate on the "Tweet" button ;)

settings["placement"]) { case "beginning": $content = "[retweet-anywhere]\r\n" . $content; break; case "end": $content = $content . "\r\n[retweet-anywhere]"; break; } return $content; } // Shortcode function shortcode($atts) { // Extract the attributes extract(shortcode_atts(array( "html" => false, "format" => false, "title" => false, ), $atts)); if (!$html) $html = $this->get_button(); if (!$format) $format = ""; if (!$title) $title = $this->settings["title"]; $message = ''; // Let's see if we're inside the loop global $wp_query; if ($wp_query->in_the_loop || is_singular()) { global $post; return 'guid) . '" class="retweet-anywhere" title="' . $title . '" rev="' . $format . '" rel="' . $post->ID . '">' . $html . ''; } else { // Not inside the loop, link to the current page return '' . $html . ''; } } // Echo the button according to the style function get_button() { switch ($this->settings["style"]) { case "default": return ' Retweet

Retweet

'; break; case "text": return 'Retweet'; break; case "html": return $this->settings["style_html"]; break; } } function wp_enqueue_scripts() { wp_enqueue_style("facebox", plugins_url("/css/facebox.css", __FILE__)); $api_key = $this->settings["api_key"]; wp_enqueue_script("twitter-anywhere", "http://platform.twitter.com/anywhere.js?id={$api_key}&v=1"); wp_enqueue_script("facebox", plugins_url("/js/facebox.js", __FILE__), array("jquery")); wp_enqueue_script("retweet-anywhere", plugins_url("/js/retweet-anywhere.js", __FILE__), array("jquery", "facebox")); wp_localize_script("retweet-anywhere", "RetweetAnywhere", array( "ajaxurl" => admin_url('admin-ajax.php'), "loadingImage" => plugins_url("/images/facebox/loading.gif", __FILE__), "closeImage" => plugins_url("/images/facebox/closelabel.gif", __FILE__), "opacity" => $this->settings["opacity"], "title" => $this->settings["title"] )); } // The AJAX call to retrieve the message function ajax_getmessage() { // Get all the details $post_id = $_POST["post_id"]; $format = $_POST["format"]; if (empty($format)) $format = $this->settings["format"]; // If we don't need %s or %l data then we don't query for the post if (strpos($format, "%s") === false && strpos($format, "%l") === false) { $message = $format; } else { if ($post_id == 0) { // If the post_id is 0 then link to the homepage $title = get_bloginfo("title"); $url = get_bloginfo("home"); } else { // Get the post data $post = get_post($post_id); $title = $post->post_title; $url = get_permalink($post_id); } // Shorten the link if we need to if ($this->settings["shortener"] == "bitly") $url = $this->shorten($url, $post_id); elseif ($this->settings["shortener"] == "native") $url = $this->shorten_native($url, $post_id); elseif ($this->settings['shortener'] != 'none') { $this->shorteners = apply_filters('retweet-anywhere-shorteners', $this->shorteners); if (function_exists($this->shorteners[$this->settings['shortener']]['callback'])) { $f = $this->shorteners[$this->settings['shortener']]['callback']; $url = $f($url); } } // Format the message $replace = array( "%s" => $title, "%l" => $url ); $message = str_replace(array_keys($replace), array_values($replace), $format); } // Format the response array $response = array( "message" => $message ); // JSON encode, print and die echo json_encode($response); die(); } function shorten_native($url, $post_id = 0) { global $post; $post = get_post($post_id); $shortlink = wp_get_shortlink(); if ($shortlink) return $shortlink; else return $url; } // Shorten the URL via bit.ly function shorten($url, $post_id = 0) { if ($post_id > 0) { $short = get_post_meta($post_id, 'rta-shorturl', true); if (!empty($short)) return $short; } // Let's get the WP_Http class if we don't have one if(!class_exists('WP_Http')) include_once(ABSPATH . WPINC . '/class-http.php'); // Encode the url $url_encoded = urlencode($url); // Get the bit.ly settings $bitly_login = urlencode(trim($this->settings["bitly_username"])); $bitly_key = urlencode(trim($this->settings["bitly_api_key"])); // Init $http and fire the request $http = new WP_Http(); $result = $http->request("http://api.bit.ly/v3/shorten?login={$bitly_login}&apiKey={$bitly_key}&uri={$url_encoded}&format=json"); if (gettype($result) == "object") if (get_class($result) == "WP_Error") return $url; // JSON decode the result body and return the data->url $result = json_decode($result["body"]); $result = $result->data; $shorturl = $result->url; // Store the shortened URL if (!empty($shorturl) && $post_id > 0) { $post = get_post($post_id); //return print_r($post, true); if ($post->post_status != 'draft' && $post->post_type != 'revision') update_post_meta($post_id, 'rta-shorturl', $shorturl); } return $shorturl; } // Administration notices function admin_notices() { $this->notices = array_unique($this->notices); foreach($this->notices as $key => $value) { echo "

Retweet Anywhere: " . $value . "

"; } } } // Used for manual mode (PHP) function retweet_anywhere() { echo do_shortcode("[retweet-anywhere]"); } // Initialize the environment add_action("init", create_function('', 'global $RetweetAnywhere; $RetweetAnywhere = new RetweetAnywhere();')); add_action("widgets_init", create_function('', 'return register_widget("RetweetAnywhereWidget");'));