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<?php
/*
Plugin Name: ZillaLikes
Plugin URI: http://www.themezilla.com/plugins/zillalikes
Description: Add "like" functionality to your posts and pages
Version: 1.1.1
Author: ThemeZilla
Author URI: http://www.themezilla.com
*/
class ZillaLikes {
function __construct()
{
add_action('init', array(&$this, 'zilla_likes_textdomain'));
add_action('admin_init', array(&$this, 'admin_init'));
add_action('admin_menu', array(&$this, 'admin_menu'), 99);
add_action('wp_enqueue_scripts', array(&$this, 'enqueue_scripts'));
add_filter('the_content', array(&$this, 'the_content'));
add_filter('the_excerpt', array(&$this, 'the_content'));
add_filter('body_class', array(&$this, 'body_class'));
add_action('publish_post', array(&$this, 'setup_likes'));
add_action('wp_ajax_zilla-likes', array(&$this, 'ajax_callback'));
add_action('wp_ajax_nopriv_zilla-likes', array(&$this, 'ajax_callback'));
add_shortcode('zilla_likes', array(&$this, 'shortcode'));
}
function zilla_likes_textdomain() {
// Set filter for plugin's languages directory
$zilla_likes_lang_dir = dirname( plugin_basename( __FILE__ ) ) . '/languages/';
$zilla_likes_lang_dir = apply_filters( 'zilla_likes_languages_directory', $zilla_likes_lang_dir );
// Load the translations
load_plugin_textdomain( 'zillalikes', false, $zilla_likes_lang_dir );
}
function admin_init()
{
register_setting( 'zilla-likes', 'zilla_likes_settings', array(&$this, 'settings_validate') );
add_settings_section( 'zilla-likes', '', array(&$this, 'section_intro'), 'zilla-likes' );
add_settings_field( 'show_on', __( 'Automatically show likes on', 'zillalikes' ), array(&$this, 'setting_show_on'), 'zilla-likes', 'zilla-likes' );
add_settings_field( 'exclude_from', __( 'Exclude from Post/Page ID', 'zillalikes' ), array(&$this, 'setting_exclude_from'), 'zilla-likes', 'zilla-likes' );
add_settings_field( 'disable_css', __( 'Disable CSS', 'zillalikes' ), array(&$this, 'setting_disable_css'), 'zilla-likes', 'zilla-likes' );
add_settings_field( 'ajax_likes', __('AJAX Like Counts', 'zillalikes'), array(&$this, 'setting_ajax_likes'), 'zilla-likes', 'zilla-likes');
add_settings_field( 'zero_postfix', __( '0 Count Postfix', 'zillalikes' ), array(&$this, 'setting_zero_postfix'), 'zilla-likes', 'zilla-likes' );
add_settings_field( 'one_postfix', __( '1 Count Postfix', 'zillalikes' ), array(&$this, 'setting_one_postfix'), 'zilla-likes', 'zilla-likes' );
add_settings_field( 'more_postfix', __( 'More than 1 Count Postfix', 'zillalikes' ), array(&$this, 'setting_more_postfix'), 'zilla-likes', 'zilla-likes' );
add_settings_field( 'instructions', __( 'Shortcode and Template Tag', 'zillalikes' ), array(&$this, 'setting_instructions'), 'zilla-likes', 'zilla-likes' );
}
function admin_menu()
{
$icon_url = plugins_url( '/images/favicon.png', __FILE__ );
$page_hook = add_menu_page( __( 'ZillaLikes Settings', 'zillalikes'), 'ZillaLikes', 'update_core', 'zilla-likes', array(&$this, 'settings_page'), $icon_url );
add_submenu_page( 'zilla-likes', __( 'Settings', 'zillalikes' ), __( 'ZillaLikes Settings', 'zillalikes' ), 'update_core', 'zilla-likes', array(&$this, 'settings_page') );
// ZillaFramework link
add_submenu_page( 'zillaframework', 'ZillaLikes', 'ZillaLikes', 'update_core', 'zilla-likes', array(&$this, 'settings_page') );
}
function settings_page()
{
?>
<div class="wrap">
<div id="icon-themes" class="icon32"></div>
<h2><?php _e('ZillaLikes Settings', 'zillalikes'); ?></h2>
<?php if( isset($_GET['settings-updated']) && $_GET['settings-updated'] ){ ?>
<div id="setting-error-settings_updated" class="updated settings-error">
<p><strong><?php _e( 'Settings saved.', 'zillalikes' ); ?></strong></p>
</div>
<?php } ?>
<form action="options.php" method="post">
<?php settings_fields( 'zilla-likes' ); ?>
<?php do_settings_sections( 'zilla-likes' ); ?>
<p class="submit"><input type="submit" class="button-primary" value="<?php _e( 'Save Changes', 'zillalikes' ); ?>" /></p>
</form>
</div>
<?php
}
function section_intro()
{
?>
<p><?php _e('ZillaLikes allows you to display like icons throughout your site. Customize the output of ZillaLike with this settings page.', 'zillalikes'); ?></p>
<p><?php _e('Check out our other free <a href="http://www.themezilla.com/plugins/?ref=zillalikes">plugins</a> and <a href="http://www.themezilla.com/themes/?ref=zillalikes">themes</a>.', 'zillalikes'); ?></p>
<?php
}
function setting_show_on()
{
$options = get_option( 'zilla_likes_settings' );
if( !isset($options['add_to_posts']) ) $options['add_to_posts'] = '0';
if( !isset($options['add_to_pages']) ) $options['add_to_pages'] = '0';
if( !isset($options['add_to_other']) ) $options['add_to_other'] = '0';
echo '<input type="hidden" name="zilla_likes_settings[add_to_posts]" value="0" />
<label><input type="checkbox" name="zilla_likes_settings[add_to_posts]" value="1"'. (($options['add_to_posts']) ? ' checked="checked"' : '') .' />
'. __('Posts', 'zillalikes') .'</label><br />
<input type="hidden" name="zilla_likes_settings[add_to_pages]" value="0" />
<label><input type="checkbox" name="zilla_likes_settings[add_to_pages]" value="1"'. (($options['add_to_pages']) ? ' checked="checked"' : '') .' />
'. __('Pages', 'zillalikes') .'</label><br />
<input type="hidden" name="zilla_likes_settings[add_to_other]" value="0" />
<label><input type="checkbox" name="zilla_likes_settings[add_to_other]" value="1"'. (($options['add_to_other']) ? ' checked="checked"' : '') .' />
'. __('Blog Index Page, Archive Pages, and Search Results', 'zillalikes') .'</label><br />';
}
function setting_exclude_from()
{
$options = get_option( 'zilla_likes_settings' );
if( !isset($options['exclude_from']) ) $options['exclude_from'] = '';
echo '<input type="text" name="zilla_likes_settings[exclude_from]" class="regular-text" value="'. $options['exclude_from'] .'" />
<p class="description">'. __('Comma separated list of post/page ID\'s (e.g. 4,7,87)', 'zillalikes') . '</p>';
}
function setting_disable_css()
{
$options = get_option( 'zilla_likes_settings' );
if( !isset($options['disable_css']) ) $options['disable_css'] = '0';
echo '<input type="hidden" name="zilla_likes_settings[disable_css]" value="0" />
<label><input type="checkbox" name="zilla_likes_settings[disable_css]" value="1"'. (($options['disable_css']) ? ' checked="checked"' : '') .' />' . __('I want to use my own CSS styles', 'zillalikes') . '</label>';
// Shutterbug conflict warning
$theme_name = '';
if(function_exists('wp_get_theme')) $theme_name = wp_get_theme();
else $theme_name = get_current_theme();
if(strtolower($theme_name) == 'shutterbug'){
echo '<br /><span class="description" style="color:red">'. __('We recommend you check this option when using the Shutterbug theme to avoid conflicts', 'zillalikes') .'</span>';
}
}
function setting_ajax_likes()
{
$options = get_option( 'zilla_likes_settings' );
if( !isset($options['ajax_likes']) ) $options['ajax_likes'] = '0';
echo '<input type="hidden" name="zilla_likes_settings[ajax_likes]" value="0" />
<label><input type="checkbox" name="zilla_likes_settings[ajax_likes]" value="1"'. (($options['ajax_likes']) ? ' checked="checked"' : '') .' />
' . __('AJAX Like Counts on page load', 'zillalikes') . '</label><br />
<span class="description">'. __('If you are using a cacheing plugin, you may want to dynamically load the like counts via AJAX.', 'zillalikes') .'</span>';
}
function setting_zero_postfix()
{
$options = get_option( 'zilla_likes_settings' );
if( !isset($options['zero_postfix']) ) $options['zero_postfix'] = '';
echo '<input type="text" name="zilla_likes_settings[zero_postfix]" class="regular-text" value="'. $options['zero_postfix'] .'" /><br />
<span class="description">'. __('The text after the count when no one has liked a post/page. Leave blank for no text after the count.', 'zillalikes') .'</span>';
}
function setting_one_postfix()
{
$options = get_option( 'zilla_likes_settings' );
if( !isset($options['one_postfix']) ) $options['one_postfix'] = '';
echo '<input type="text" name="zilla_likes_settings[one_postfix]" class="regular-text" value="'. $options['one_postfix'] .'" /><br />
<span class="description">'. __('The text after the count when one person has liked a post/page. Leave blank for no text after the count.', 'zillalikes') .'</span>';
}
function setting_more_postfix()
{
$options = get_option( 'zilla_likes_settings' );
if( !isset($options['more_postfix']) ) $options['more_postfix'] = '';
echo '<input type="text" name="zilla_likes_settings[more_postfix]" class="regular-text" value="'. $options['more_postfix'] .'" /><br />
<span class="description">'. __('The text after the count when more than one person has liked a post/page. Leave blank for no text after the count.', 'zillalikes') .'</span>';
}
function setting_instructions()
{
echo '<p>'. __('To use ZillaLikes in your posts and pages you can use the shortcode:', 'zillalikes') .'</p>
<p><code>[zilla_likes]</code></p>
<p>'. __('To use ZillaLikes manually in your theme template use the following PHP code:', 'zillalikes') .'</p>
<p><code><?php if( function_exists(\'zilla_likes\') ) zilla_likes(); ?></code></p>';
}
function settings_validate($input)
{
$input['exclude_from'] = str_replace(' ', '', trim(strip_tags($input['exclude_from'])));
return $input;
}
function enqueue_scripts()
{
$options = get_option( 'zilla_likes_settings' );
if( !isset($options['disable_css']) ) $options['disable_css'] = '0';
if(!$options['disable_css']) wp_enqueue_style( 'zilla-likes', plugins_url( '/styles/zilla-likes.css', __FILE__ ) );
wp_enqueue_script( 'zilla-likes', plugins_url( '/scripts/zilla-likes.js', __FILE__ ), array('jquery') );
wp_enqueue_script( 'jquery' );
wp_localize_script( 'zilla-likes', 'zilla_likes', array('ajaxurl' => admin_url('admin-ajax.php')) );
}
function the_content( $content )
{
// Don't show on custom page templates
if(is_page_template()) return $content;
// Don't show on Stacked slides
if(get_post_type() == 'slide') return $content;
global $wp_current_filter;
if ( in_array( 'get_the_excerpt', (array) $wp_current_filter ) ) {
return $content;
}
$options = get_option( 'zilla_likes_settings' );
if( !isset($options['add_to_posts']) ) $options['add_to_posts'] = '0';
if( !isset($options['add_to_pages']) ) $options['add_to_pages'] = '0';
if( !isset($options['add_to_other']) ) $options['add_to_other'] = '0';
if( !isset($options['exclude_from']) ) $options['exclude_from'] = '';
$ids = explode(',', $options['exclude_from']);
if(in_array(get_the_ID(), $ids)) return $content;
if(is_singular('post') && $options['add_to_posts']) $content .= $this->do_likes();
if(is_page() && !is_front_page() && $options['add_to_pages']) $content .= $this->do_likes();
if((is_front_page() || is_home() || is_category() || is_tag() || is_author() || is_date() || is_search()) && $options['add_to_other'] ) $content .= $this->do_likes();
return $content;
}
function setup_likes( $post_id )
{
if(!is_numeric($post_id)) return;
add_post_meta($post_id, '_zilla_likes', '0', true);
}
function ajax_callback($post_id)
{
$options = get_option( 'zilla_likes_settings' );
if( !isset($options['add_to_posts']) ) $options['add_to_posts'] = '0';
if( !isset($options['add_to_pages']) ) $options['add_to_pages'] = '0';
if( !isset($options['add_to_other']) ) $options['add_to_other'] = '0';
if( !isset($options['zero_postfix']) ) $options['zero_postfix'] = '';
if( !isset($options['one_postfix']) ) $options['one_postfix'] = '';
if( !isset($options['more_postfix']) ) $options['more_postfix'] = '';
if( isset($_POST['likes_id']) ) {
// Click event. Get and Update Count
$post_id = str_replace('zilla-likes-', '', $_POST['likes_id']);
echo $this->like_this($post_id, $options['zero_postfix'], $options['one_postfix'], $options['more_postfix'], 'update');
} else {
// AJAXing data in. Get Count
$post_id = str_replace('zilla-likes-', '', $_POST['post_id']);
echo $this->like_this($post_id, $options['zero_postfix'], $options['one_postfix'], $options['more_postfix'], 'get');
}
exit;
}
function like_this($post_id, $zero_postfix = false, $one_postfix = false, $more_postfix = false, $action = 'get')
{
if(!is_numeric($post_id)) return;
$zero_postfix = strip_tags($zero_postfix);
$one_postfix = strip_tags($one_postfix);
$more_postfix = strip_tags($more_postfix);
switch($action) {
case 'get':
$likes = get_post_meta($post_id, '_zilla_likes', true);
if( !$likes ){
$likes = 0;
add_post_meta($post_id, '_zilla_likes', $likes, true);
}
if( $likes == 0 ) { $postfix = $zero_postfix; }
elseif( $likes == 1 ) { $postfix = $one_postfix; }
else { $postfix = $more_postfix; }
return '<span class="zilla-likes-count">'. $likes .'</span> <span class="zilla-likes-postfix">'. $postfix .'</span>';
break;
case 'update':
$likes = get_post_meta($post_id, '_zilla_likes', true);
if( isset($_COOKIE['zilla_likes_'. $post_id]) ) return $likes;
$likes++;
update_post_meta($post_id, '_zilla_likes', $likes);
setcookie('zilla_likes_'. $post_id, $post_id, time()*20, '/');
if( $likes == 0 ) { $postfix = $zero_postfix; }
elseif( $likes == 1 ) { $postfix = $one_postfix; }
else { $postfix = $more_postfix; }
return '<span class="zilla-likes-count">'. $likes .'</span> <span class="zilla-likes-postfix">'. $postfix .'</span>';
break;
}
}
function shortcode( $atts )
{
extract( shortcode_atts( array(
), $atts ) );
return $this->do_likes();
}
function do_likes()
{
global $post;
$options = get_option( 'zilla_likes_settings' );
if( !isset($options['zero_postfix']) ) $options['zero_postfix'] = '';
if( !isset($options['one_postfix']) ) $options['one_postfix'] = '';
if( !isset($options['more_postfix']) ) $options['more_postfix'] = '';
$output = $this->like_this($post->ID, $options['zero_postfix'], $options['one_postfix'], $options['more_postfix']);
$class = 'zilla-likes';
$title = __('Like this', 'zillalikes');
if( isset($_COOKIE['zilla_likes_'. $post->ID]) ){
$class = 'zilla-likes active';
$title = __('You already like this', 'zillalikes');
}
return '<a href="#" class="'. $class .'" id="zilla-likes-'. $post->ID .'" title="'. $title .'">'. $output .'</a>';
}
function body_class($classes) {
$options = get_option( 'zilla_likes_settings' );
if( !isset($options['ajax_likes']) ) $options['ajax_likes'] = false;
if( $options['ajax_likes'] ) {
$classes[] = 'ajax-zilla-likes';
}
return $classes;
}
}
global $zilla_likes;
$zilla_likes = new ZillaLikes();
/**
* Template Tag
*/
function zilla_likes()
{
global $zilla_likes;
echo $zilla_likes->do_likes();
}
Zerion Mini Shell 1.0