<?php
/**
 * Avoid direct calls to this file
 *
 * @since 1.0
 * @author ppfeufer
 *
 * @package 2 Click Social Media Buttons
 */
if(!function_exists('add_action')) {
	header('Status: 403 Forbidden');
	header('HTTP/1.1 403 Forbidden');

	exit();
} // END if(!function_exists('add_action'))

/**
 * The Settings Class
 *
 * @since 1.0
 * @author ppfeufer
 *
 * @package 2 Click Social Media Buttons
 */
if(!class_exists('Twoclick_Social_Media_Buttons_Backend')) {
	class Twoclick_Social_Media_Buttons_Backend {
		private $var_SettingsPageScreenID	= 'settings_page_twoclick_buttons';
		private $var_sSettingsPageHandle	= 'twoclick_buttons';
		private $var_sOptionsGroup			= 'twoclick_buttons_options';
		private $var_sOptionsName			= 'twoclick_buttons_settings';
		private $var_sActiveTab				= 'general-settings';
		private $var_sCapability			= 'manage_options';

		private $array_TwoclickButtonsOptions;
		private $array_SupportedNetworks;
		private $array_Tabs;

		private $obj_screen;

		/**
		 * PHP 4 Constructor
		 *
		 * @since 1.0
		 * @author ppfeufer
		 */
		function Twoclick_Social_Media_Buttons_Backend() {
			Twoclick_Social_Media_Buttons_Backend::__construct();
		} // END function Twoclick_Social_Media_Buttons_Backend()

		/**
		 * PHP 5 Constructor
		 *
		 * @since 1.0
		 * @author ppfeufer
		 */
		function __construct() {
			$this->array_TwoclickButtonsOptions = get_option($this->var_sOptionsName);
			$this->array_SupportedNetworks = $this->_get_supported_networks();

			/**
			 * Sidebarwidget, wenn es angezeigt werden soll
			 *
			 * @since coming soon ...
			 * @author ppfeufer
			 */
			if($this->array_TwoclickButtonsOptions['twoclick_buttons_display_sidebar_widget']) {
				if(is_readable(plugin_dir_path(__FILE__) . 'class-twoclick-sidebar-widget.php')) {
					require_once(plugin_dir_path(__FILE__) . 'class-twoclick-sidebar-widget.php');
				} // END if(is_readable(plugin_dir_path(__FILE__) . 'class-twoclick-sidebar-widget.php'))
			} // END if($this->array_TwoclickButtonsOptions['twoclick_buttons_display_sidebar_widget'])

			/**
			 * Nur ausführen wenn im Backend
			 */
			if(is_admin()) {
				// Plugin initialisieren
				add_action('admin_init', array(
					$this,
					'plugin_init'
				));

				// Optionsseite zu den Einstellungen im Dashboard hinzufügen
				add_action('admin_menu', array(
					$this,
					'embed_options_page'
				));

				// JS und CSS für die Optionsseite
				add_action('admin_enqueue_scripts', array(
					$this,
					'_enqueue_admin'
				));

				add_action('admin_head', array(
					$this,
					'_enqueue_admin_head'
				));

				add_action('admin_footer', array(
					$this,
					'_enqueue_admin_footer'
				));

				// Settingslink zur PLuginübersicht hinzufügen.
				add_filter('plugin_action_links', array(
					$this,
					'_settings_link'
				), 9, 2);

				// Updatemeldung
				if(ini_get('allow_url_fopen') || function_exists('curl_init')) {
					add_action('in_plugin_update_message-' . TWOCLICK_BASENAME, array(
						$this,
						'_update_notice'
					));
				} // END if(ini_get('allow_url_fopen') || function_exists('curl_init'))
			} // END if(is_admin())
		} // END function __construct()

		/**
		 * <[ Helper ]>
		 * Returning the plugins options
		 *
		 * @since 1.0
		 * @author ppfeufer
		 *
		 * @param string $parameter
		 * @return array
		 */
		private function _get_option($parameter = '') {
			/**
			 * Prüfen ob das Formular abgesendet wurde.
			 * Wenn nicht, übernehme $this->array_TwoclickButtonsOptions,
			 * ansonsten lade sie neu.
			 */
			if(isset($_REQUEST['settings-updated']) && ($_REQUEST['settings-updated'] == true)) {
				$this->array_TwoclickButtonsOptions = get_option($this->var_sOptionsName);
			} // END if(isset($_REQUEST['settings-updated']) && ($_REQUEST['settings-updated'] == true))

			if($parameter == '') {
				return $this->array_TwoclickButtonsOptions;
			} else {
				return $this->array_TwoclickButtonsOptions[$parameter];
			} // END if($parameter == '')
		} // END private function _get_option($parameter = '')

		/**
		 * <[ Helper ]>
		 * Returning the plugindata
		 *
		 * @since 1.0
		 * @author ppfeufer
		 *
		 * @return array
		 */
		private function _get_plugin_data() {
			$array_DefaultHeaders = array(
				'Name' => 'Plugin Name',
				'PluginURI' => 'Plugin URI',
				'Version' => 'Version',
				'Description' => 'Description',
				'Author' => 'Author',
				'AuthorURI' => 'Author URI',
				'TextDomain' => 'Text Domain',
				'DomainPath' => 'Domain Path',
			);

			$array_PluginData = get_file_data(TWOCLICK_PLUGIN_DIR . '2-click-socialmedia-buttons.php', $array_DefaultHeaders, 'plugin');

			$array_PluginData['Title'] = $array_PluginData['Name'];
			$array_PluginData['AuthorName'] = $array_PluginData['Author'];

			return $array_PluginData;
		} // END private function _get_plugin_data()

		/**
		 * <[ Helper ]>
		 * Returning the current screen object.
		 *
		 * @since 1.0
		 * @author ppfeufer
		 *
		 * @return Ambigous <WP_Screen, NULL, StdClass, string, multitype:>
		 */
		private function _get_screen() {
			return get_current_screen();
		} // END private function _get_screen()

		/**
		 * <[ Helper ]>
		 * Returning the current pluginversion
		 *
		 * @since 1.0
		 * @author ppfeufer
		 *
		 * @return string
		 */
		private function _get_plugin_version() {
			$array_PluginData = $this->_get_plugin_data();

			return $array_PluginData['Version'];
		} // END private function _get_plugin_version()

		/**
		 * <[ Helper ]>
		 * Check if we are on the settings page
		 *
		 * @return boolean
		 */
		private function _is_twoclick_settings_page() {
			if($this->_get_screen()->id == $this->var_SettingsPageScreenID) {
				return true;
			} else {
				return false;
			} // END if($this->_get_screen()->id == $this->var_SettingsPageScreenID)
		} // END private function _is_twoclick_settings_page()

		/**
		 * Enqueues some needed scripts to the settings page
		 *
		 * @since 1.0
		 * @author ppfeufer
		 */
		function _enqueue_admin() {
			if($this->_is_twoclick_settings_page()) {
				/**
				 * JavaScript
				 */
				wp_enqueue_script('media-upload');
				wp_enqueue_script('thickbox');
// 				wp_register_script('twoclick-image-upload', plugins_url('/js/jquery-media-upload.js', dirname(__FILE__)), array(
				wp_register_script('twoclick-image-upload', plugins_url('/js/jquery-media-upload-min.js', dirname(__FILE__)), array(
					'jquery',
					'media-upload',
					'thickbox'
				), $this->_get_plugin_version());
				wp_localize_script('twoclick-image-upload', 'twoclick_localizing_upload_js', array(
					'use_this_image' => __('Use This Image', TWOCLICK_TEXTDOMAIN)
				));
				wp_enqueue_script('twoclick-image-upload');

				/**
				 * CSS
				 */
				$var_sCss = plugins_url('/css/twoclick-admin-min.css', dirname(__FILE__));
// 				$var_sCss = plugins_url('/css/twoclick-admin.css', dirname(__FILE__));

				wp_register_style('twoclick-admin', $var_sCss, '', $this->_get_plugin_version());
				wp_enqueue_style('twoclick-admin');
				wp_enqueue_style('thickbox');
			} // END if($this->_is_twoclick_settings_page())
		} // END function _enqueue_admin()

		/**
		 * Adds a little CSS-Fix to the admin header only for the plugins settings page
		 *
		 * @since 1.0
		 * @author ppfeufer
		 */
		function _enqueue_admin_head() {
			if($this->_is_twoclick_settings_page()) {
				// Do some stuff ...
			} // END if($this->_is_twoclick_settings_page())
		} // END function _enqueue_admin_head()

		/**
		 * Add some stuff to the admin_footer
		 *
		 * @since 1.0
		 * @author ppfeufer
		 */
		function _enqueue_admin_footer() {
			if($this->_is_twoclick_settings_page()) {
				?>
				<script type="text/javascript">
				/* <![CDATA[ */
				function getElementStyle(oElm, strCssRule) {
					var strValue = '';

					if(document.defaultView && document.defaultView.getComputedStyle) {
						strValue = document.defaultView.getComputedStyle(oElm, '').getPropertyValue(strCssRule);
					} else if(oElm.currentStyle) {
						strCssRule = strCssRule.replace(/\-(\w)/g, function (strMatch, p1) {
							return p1.toUpperCase();
						});
						strValue = oElm.currentStyle[strCssRule];
					}

					return strValue;
				}

				function toggleElementVisibility(ElementId) {
					var htmlStyle = getElementStyle(document.getElementById(ElementId), 'display');

					if(htmlStyle == 'none') {
						document.getElementById(ElementId).style.display = 'block';
					} else {
						document.getElementById(ElementId).style.display = 'none';
					}
				}
				/* ]]> */
				</script>
				<?php
			} // END if($this->_is_twoclick_settings_page())
		} // END function _enqueue_admin_footer()

		/**
		 * Initialize Options
		 *
		 * @since 1.0
		 * @author ppfeufer
		 */
		function plugin_init() {
			// register settings
			register_setting(
				$this->var_sOptionsGroup, // Options group, see settings_fields() call in render_options_page()
				$this->var_sOptionsName, // Database option
				array(
					$this,
					'options_validate'
				) // The sanitization callback, see options_validate()
			);

			/**
			 * Setting default options on first install
			 *
			 * @since 1.0
			 */
			if($this->array_TwoclickButtonsOptions == false) {
				$this->array_TwoclickButtonsOptions = $this->_get_default_options();
				add_option($this->var_sOptionsName, $this->array_TwoclickButtonsOptions, '', 'yes');
			} // END if($this->array_TwoclickButtonsOptions == false)

			/**
			 * Sprachdatei wählen
			 */
			if(function_exists('load_plugin_textdomain')) {
				load_plugin_textdomain(TWOCLICK_TEXTDOMAIN, false, TWOCLICK_L10N_DIR);
			} // END if(function_exists('load_plugin_textdomain'))
		} // END function plugin_init()

		/**
		 * Validating Options
		 *
		 * @since 1.0
		 * @author ppfeufer
		 *
		 * @param array $input
		 */
		function options_validate($input) {
			if(isset($input['twoclick_buttons_settings_reset'])) {
				// Resetting options to default
				$output = $this->_get_default_options();
			} else {
				$output = $this->array_TwoclickButtonsOptions;

				switch($input['twoclick_buttons_settings_section']) {
					case 'general-settings':
						// Validating General Setting
						foreach((array) $this->array_SupportedNetworks as $var_sKey => $var_sValue) {
							$output['twoclick_buttons_display_' . $var_sKey] = ($input['twoclick_buttons_display_' . $var_sKey] == 1 ? true : false);
							$output['twoclick_buttons_display_' . $var_sKey . '_perm'] = ($input['twoclick_buttons_display_' . $var_sKey . '_perm'] == 1 ? true : false);
						} // END foreach((array) $this->array_SupportedNetworks as $var_sKey => $var_sValue)

						$output['twoclick_buttons_display_page'] = ($input['twoclick_buttons_display_page'] == 1 ? true : false);
						$output['twoclick_buttons_display_sidebar_widget'] = ($input['twoclick_buttons_display_sidebar_widget'] == 1 ? true : false);
						$output['twoclick_buttons_display_private'] = ($input['twoclick_buttons_display_private'] == 1 ? true : false);
						$output['twoclick_buttons_display_password'] = ($input['twoclick_buttons_display_password'] == 1 ? true : false);
						$output['twoclick_buttons_display_index'] = ($input['twoclick_buttons_display_index'] == 1 ? true : false);
						$output['twoclick_buttons_display_year'] = ($input['twoclick_buttons_display_year'] == 1 ? true : false);
						$output['twoclick_buttons_display_month'] = ($input['twoclick_buttons_display_month'] == 1 ? true : false);
						$output['twoclick_buttons_display_day'] = ($input['twoclick_buttons_display_day'] == 1 ? true : false);
						$output['twoclick_buttons_display_search'] = ($input['twoclick_buttons_display_search'] == 1 ? true : false);
						$output['twoclick_buttons_display_category'] = ($input['twoclick_buttons_display_category'] == 1 ? true : false);
						$output['twoclick_buttons_display_tag'] = ($input['twoclick_buttons_display_tag'] == 1 ? true : false);
						$output['twoclick_buttons_where'] = wp_filter_nohtml_kses($input['twoclick_buttons_where']);

						// Validating custom post types
						unset($output['twoclick_buttons_exclude_cpt']);
						if(is_array($input['twoclick_buttons_exclude_cpt'])) {
							foreach($input['twoclick_buttons_exclude_cpt'] as $key => $value) {
								if((post_type_exists($key)) && ($value == 1)) {
									$output['twoclick_buttons_exclude_cpt'][$key] = true;
								} else {
									unset($output['twoclick_buttons_exclude_cpt'][$key]);
								} // END if((post_type_exists($key)) && ($value == 1))
							} // END foreach($input['twoclick_buttons_exclude_page'] as $key => $value)
						} // END if(is_array($input['twoclick_buttons_exclude_page']))
						break;

						// Validating excludes pages
						unset($output['twoclick_buttons_exclude_page']);
						if(is_array($input['twoclick_buttons_exclude_page'])) {
							foreach($input['twoclick_buttons_exclude_page'] as $key => $value) {
								if((get_post_type($key) == 'page') && ($value == 1)) {
									$output['twoclick_buttons_exclude_page'][$key] = true;
								} else {
									unset($output['twoclick_buttons_exclude_page'][$key]);
								} // END if((get_post_type($key) == 'page') && ($value == 1))
							} // END foreach($input['twoclick_buttons_exclude_page'] as $key => $value)
						} // END if(is_array($input['twoclick_buttons_exclude_page']))
						break;

					case 'button-settings':
						// Validating Button Settings
						$output['twoclick_buttons_facebook_action'] = wp_filter_nohtml_kses($input['twoclick_buttons_facebook_action']);
						$output['twoclick_buttons_twitter_reply'] = $this->_get_sanitized_twitter_name($input['twoclick_buttons_twitter_reply']);
						$output['twoclick_buttons_twitter_tweettext'] = wp_filter_nohtml_kses($input['twoclick_buttons_twitter_tweettext']);
						$output['twoclick_buttons_twitter_tweettext_default_as'] = wp_filter_nohtml_kses($input['twoclick_buttons_twitter_tweettext_default_as']);
						$output['twoclick_buttons_twitter_tweettext_owntext'] = wp_filter_nohtml_kses($input['twoclick_buttons_twitter_tweettext_owntext']);
						$output['twoclick_buttons_twitter_hashtags'] = ($input['twoclick_buttons_twitter_hashtags'] == 1 ? true : false);
						$output['twoclick_buttons_flattr_uid'] = wp_filter_nohtml_kses($input['twoclick_buttons_flattr_uid']);
						$output['twoclick_buttons_pinterest_description'] = wp_filter_nohtml_kses($input['twoclick_buttons_pinterest_description']);
						break;

					case 'infotext-settings':
						// Validating Infotext
// 						$output['twoclick_buttons_infotext_facebook'] = wp_filter_kses($input['twoclick_buttons_infotext_facebook']);
// 						$output['twoclick_buttons_infotext_twitter'] = wp_filter_kses($input['twoclick_buttons_infotext_twitter']);
// 						$output['twoclick_buttons_infotext_googleplus'] = wp_filter_kses($input['twoclick_buttons_infotext_googleplus']);
// 						$output['twoclick_buttons_infotext_flattr'] = wp_filter_kses($input['twoclick_buttons_infotext_flattr']);
// 						$output['twoclick_buttons_infotext_xing'] = wp_filter_kses($input['twoclick_buttons_infotext_xing']);
// 						$output['twoclick_buttons_infotext_pinterest'] = wp_filter_kses($input['twoclick_buttons_infotext_pinterest']);
// 						$output['twoclick_buttons_infotext_t3n'] = wp_filter_kses($input['twoclick_buttons_infotext_t3n']);
// 						$output['twoclick_buttons_infotext_linkedin'] = wp_filter_kses($input['twoclick_buttons_infotext_linkedin']);

						// Facebook
						if(!empty($input['twoclick_buttons_infotext_facebook'])) {
							$output['twoclick_buttons_infotext_facebook'] = stripslashes(wp_filter_post_kses($input['twoclick_buttons_infotext_facebook']));
						} else {
							unset($output['twoclick_buttons_infotext_facebook']);
						} // END if(!empty($input['twoclick_buttons_infotext_facebook']))

						// Twitter
						if(!empty($input['twoclick_buttons_infotext_twitter'])) {
							$output['twoclick_buttons_infotext_twitter'] = stripslashes(wp_filter_post_kses($input['twoclick_buttons_infotext_twitter']));
						} else {
							unset($output['twoclick_buttons_infotext_twitter']);
						} // END if(!empty($input['twoclick_buttons_infotext_twitter']))

						// Google+
						if(!empty($input['twoclick_buttons_infotext_googleplus'])) {
							$output['twoclick_buttons_infotext_googleplus'] = stripslashes(wp_filter_post_kses($input['twoclick_buttons_infotext_googleplus']));
						} else {
							unset($output['twoclick_buttons_infotext_googleplus']);
						} // END if(!empty($input['twoclick_buttons_introtext']))

						// Flattr
						if(!empty($input['twoclick_buttons_infotext_flattr'])) {
							$output['twoclick_buttons_infotext_flattr'] = stripslashes(wp_filter_post_kses($input['twoclick_buttons_infotext_flattr']));
						} else {
							unset($output['twoclick_buttons_infotext_flattr']);
						} // END if(!empty($input['twoclick_buttons_infotext_flattr']))

						// Xing
						if(!empty($input['twoclick_buttons_infotext_xing'])) {
							$output['twoclick_buttons_infotext_xing'] = stripslashes(wp_filter_post_kses($input['twoclick_buttons_infotext_xing']));
						} else {
							unset($output['twoclick_buttons_infotext_xing']);
						} // END if(!empty($input['twoclick_buttons_infotext_xing']))

						// Pinterest
						if(!empty($input['twoclick_buttons_infotext_pinterest'])) {
							$output['twoclick_buttons_infotext_pinterest'] = stripslashes(wp_filter_post_kses($input['twoclick_buttons_infotext_pinterest']));
						} else {
							unset($output['twoclick_buttons_infotext_pinterest']);
						} // END if(!empty($input['twoclick_buttons_infotext_pinterest']))

						// t3n
						if(!empty($input['twoclick_buttons_infotext_t3n'])) {
							$output['twoclick_buttons_infotext_t3n'] = stripslashes(wp_filter_post_kses($input['twoclick_buttons_infotext_t3n']));
						} else {
							unset($output['twoclick_buttons_infotext_t3n']);
						} // END if(!empty($input['twoclick_buttons_infotext_t3n']))

						// LinkedIn
						if(!empty($input['twoclick_buttons_infotext_linkedin'])) {
							$output['twoclick_buttons_infotext_linkedin'] = stripslashes(wp_filter_post_kses($input['twoclick_buttons_infotext_linkedin']));
						} else {
							unset($output['twoclick_buttons_infotext_linkedin']);
						} // END if(!empty($input['twoclick_buttons_infotext_linkedin']))

						$output['twoclick_buttons_infotext_infobutton'] = wp_filter_kses($input['twoclick_buttons_infotext_infobutton']);
						$output['twoclick_buttons_infotext_permaoption'] = wp_filter_kses($input['twoclick_buttons_infotext_permaoption']);

						$output['twoclick_buttons_infolink'] = esc_url($input['twoclick_buttons_infolink']);

						if(!empty($input['twoclick_buttons_introtext'])) {
							$output['twoclick_buttons_introtext'] = stripslashes(wp_filter_post_kses($input['twoclick_buttons_introtext']));
						} else {
							unset($output['twoclick_buttons_introtext']);
						} // END if(!empty($input['twoclick_buttons_introtext']))
						break;

					case 'other-settings':
						// Validating Other Settings
						$output['twoclick_buttons_postthumbnail'] = esc_url($input['twoclick_buttons_postthumbnail']);
						$output['twoclick_buttons_opengraph_disable'] = ($input['twoclick_buttons_opengraph_disable'] == 1 ? true : false);

						if(!empty($input['twoclick_buttons_custom_css'])) {
							$output['twoclick_buttons_custom_css'] = stripslashes(wp_filter_post_kses($input['twoclick_buttons_custom_css']));
						} else {
							unset($output['twoclick_buttons_custom_css']);
						} // END if(!empty($input['twoclick_buttons_custom_css']))
						break;
				} // END switch($input['twoclick_buttons_settings_section'])
			} // END if(isset($input['twoclick_buttons_settings_reset']))

			return $output;
		} // END function options_validate($input)

		/**
		 * <[ Helper ]>
		 * Gettings linked tabs in settings page
		 *
		 * @since 1.0
		 * @author ppfeufer
		 */
		private function _get_tablinks_for_options_page() {
			?>
			<h2 class="nav-tab-wrapper">
				<?php
				foreach((array) $this->array_Tabs as $var_arrayKey => $var_arrayValue) {
					?>
					<a href="?page=twoclick_buttons&tab=<?php echo $var_arrayKey; ?>" class="nav-tab <?php echo $this->var_sActiveTab == $var_arrayKey ? 'nav-tab-active' : ''; ?>"><?php echo $var_arrayValue; ?></a>
					<?php
				} // END foreach((array) $this->array_Tabs as $var_arrayKey => $var_arrayValue)
				?>
			</h2>
			<?php
		} // END private function _get_tablinks_for_options_page()

		/**
		 * <[ Helper ]>
		 *
		 * Getting the default options for the first install
		 *
		 * @since 1.0
		 * @author ppfeufer
		 *
		 * @return array
		 */
		private function _get_default_options() {
			$array_TwoclickDefaultOptions = array(
				'twoclick_buttons_where' => 'before',
				'twoclick_buttons_facebook_action' => 'recommend',
				'twoclick_buttons_twitter_tweettext' => 'default',
				'twoclick_buttons_twitter_tweettext_default_as' => 'posttitle-blogtitle',
				'twoclick_buttons_twitter_hashtags' => true,
				'twoclick_buttons_pinterest_description' => 'posttitle'
			);

			return $array_TwoclickDefaultOptions;
		} // END private function _get_default_options()

		/**
		 * <[ Helper ]>
		 * Supported Networks
		 *
		 * @since 1.0
		 * @author ppfeufer
		 *
		 * @return array
		 */
		private function _get_supported_networks() {
			$array_Networks = array(
				'facebook' => __('Facebook', TWOCLICK_TEXTDOMAIN),
				'twitter' => __('Twitter', TWOCLICK_TEXTDOMAIN),
				'googleplus' => __('Google+', TWOCLICK_TEXTDOMAIN),
				'flattr' => __('Flattr', TWOCLICK_TEXTDOMAIN),
				'xing' => __('Xing', TWOCLICK_TEXTDOMAIN),
				'pinterest' => __('Pinterest', TWOCLICK_TEXTDOMAIN),
				't3n' => __('t3n', TWOCLICK_TEXTDOMAIN),
				'linkedin' => __('LinkedIn', TWOCLICK_TEXTDOMAIN)
			);

			return $array_Networks;
		} // END private function _get_supported_networks()

		/**
		 * <[ Helper ]>
		 *
		 * Sanitize Twittername
		 *
		 * @since 1.0
		 * @author ppfeufer
		 *
		 * @param string $var_sTwitterName
		 * @return string
		 */
		private function _get_sanitized_twitter_name($var_sTwitterName) {
			return preg_replace('/[^A-Za-z0-9_]/', '', wp_filter_nohtml_kses($var_sTwitterName));
		} // END private function _get_sanitized_twitter_name($var_sTwitterName)

		/**
		 * Embedding link to options page inside the settings menu
		 *
		 * @since 1.0
		 * @author ppfeufer
		 */
		function embed_options_page() {
			add_options_page(
				'2-Klick-Buttons',
				'<img src="' . plugins_url('/images/twoclick.jpg', dirname(__FILE__)) . '" id="2-click-icon" alt="2 Click Social Media Buttons Icon" width="16" height="16" /> 2-Klick-Buttons',
				$this->var_sCapability,
				'twoclick_buttons',
				array(
					$this,
					'options_page'
				)
			);
		} // END function embed_options_page()

		/**
		 * Render the output of options page
		 *
		 * @since 1.0
		 * @author ppfeufer
		 */
		function options_page() {
			if($this->_is_twoclick_settings_page()) {
				require_once(plugin_dir_path(__FILE__) . 'class-twoclick-pages-walker.php');
			} // END if($this->_is_twoclick_settings_page())

			$this->array_Tabs = array(
				'general-settings' => __('General', TWOCLICK_TEXTDOMAIN),
				'button-settings' => __('Buttons', TWOCLICK_TEXTDOMAIN),
				'infotext-settings' => __('Infotext', TWOCLICK_TEXTDOMAIN),
				'other-settings' => __('Other', TWOCLICK_TEXTDOMAIN),
// 				'help' => __('Help', TWOCLICK_TEXTDOMAIN),
				'faq' => __('F.A.Q.', TWOCLICK_TEXTDOMAIN),
				'changelog' => __('Changelog', TWOCLICK_TEXTDOMAIN),
				'donate' => __('Donate', TWOCLICK_TEXTDOMAIN),
				'debug' => __('Debug', TWOCLICK_TEXTDOMAIN),
			);
			?>
			<div class="wrap">
				<div class="icon32" id="icon-options-general"><br /></div>
				<h2><?php _e('Settings for 2-Click Social Media Buttons', TWOCLICK_TEXTDOMAIN); ?></h2>
				<?php

				/**
				 * Setting the active tab
				 */
				if(isset($_GET['tab'])) {
					$this->var_sActiveTab = $_GET['tab'];
				} // END if(isset($_GET['tab']))

				$this->_get_tablinks_for_options_page();

				switch($this->var_sActiveTab) {
					// Tabs ohne Formular
					case 'help':
					case 'faq':
					case 'changelog':
					case 'donate':
					case 'debug':
						require_once(plugin_dir_path(__FILE__) . 'class-twoclick-backend-' . $this->var_sActiveTab . '.php');
						break;

					// Tabs mit Formular
					default:
						?>
						<form method="post" action="options.php">
							<?php
							settings_fields($this->var_sOptionsGroup);
							$options = get_option('twoclick_buttons_settings');
							?>
							<input type="hidden" value="<?php echo $this->var_sActiveTab; ?>" name="twoclick_buttons_settings[twoclick_buttons_settings_section]" id="twoclick_buttons_settings[twoclick_buttons_settings_section]" />
							<div id="twoclick-options-tabs" class="clearfix">
								<?php
								switch($this->var_sActiveTab) {
									case 'general-settings':
										?>
										<div id="general-settings clearfix">
											<?php $this->render_general_settings(); ?>
										</div>
										<?php
										break;

									case 'button-settings':
										?>
										<div id="button-settings clearfix">
											<?php $this->render_button_settings(); ?>
										</div>
										<?php
										break;

									case 'infotext-settings':
										?>
										<div id="infotext-settings clearfix">
											<?php $this->render_infotext_settings(); ?>
										</div>
										<?php
										break;

									case 'other-settings':
										?>
										<div id="other-settings clearfix">
											<?php $this->render_other_settings(); ?>
										</div>
										<?php
										break;
								} // END switch($this->var_sActiveTab)
								?>
							</div>
							<p class="submit">
								<?php
								// Speichern
								submit_button('', 'primary', 'twoclick_buttons_settings[twoclick_buttons_settings_submit]', false, array(
									'id' => 'twoclick_buttons_settings[twoclick_buttons_settings_submit]'
								));

								// Zurücksetzen
								submit_button(__('Reset Options', TWOCLICK_TEXTDOMAIN), 'delete', 'twoclick_buttons_settings[twoclick_buttons_settings_reset]', false, array(
									'id' => 'twoclick_buttons_settings[twoclick_buttons_settings_reset]',
									'onclick' => 'return confirm(' . __('&quot;Do you really want to reset your configuration?&quot;', TWOCLICK_TEXTDOMAIN) . ');'
	 							));
	 							?>
							</p>
						</form>
						<?php
						break;
				} // END switch($this->var_sActiveTab)
				?>
			</div>
			<?php
		} // END function options_page()

		/**
		 * Rendering the general settings
		 *
		 * @since 1.0
		 * @author ppfeufer
		 */
		private function render_general_settings() {
			?>
			<div class="metabox-holder clearfix">
				<div id="post-body">
					<div id="post-body-content">
						<div class="postbox clearfix">
							<h3><span><?php _e('Display', TWOCLICK_TEXTDOMAIN); ?></span></h3>
							<div class="inside">
								<!-- Anzeigeeinstellungen -->
								<div>
									<div style="float:left; width:100px"><?php _e('Network', TWOCLICK_TEXTDOMAIN); ?></div>
									<div style="margin-left:100px;">

										<!-- Welche Buttons sollen angezeigt werden -->
										<?php
										foreach((array) $this->array_SupportedNetworks as $var_sKey => $var_sValue) {
											?>
											<!-- <?php echo $var_sValue; ?> -->
											<div>
												<input type="checkbox" value="1" <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_display_' . $var_sKey] == '1') echo 'checked="checked"'; ?> name="twoclick_buttons_settings[twoclick_buttons_display_<?php echo $var_sKey; ?>]" id="twoclick_buttons_settings[twoclick_buttons_display_<?php echo $var_sKey; ?>]" />
												<label for="twoclick_buttons_settings[twoclick_buttons_display_<?php echo $var_sKey; ?>]" style="display:inline-block; width:150px;"><?php echo sprintf(__('Enable %1$s', TWOCLICK_TEXTDOMAIN), $var_sValue); ?></label>
												<input type="checkbox" value="1" <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_display_' . $var_sKey . '_perm'] == '1') echo 'checked="checked"'; ?> name="twoclick_buttons_settings[twoclick_buttons_display_<?php echo $var_sKey; ?>_perm]" id="twoclick_buttons_settings[twoclick_buttons_display_<?php echo $var_sKey; ?>_perm]" />
												<label for="twoclick_buttons_settings[twoclick_buttons_display_<?php echo $var_sKey; ?>_perm]"><?php echo sprintf(__('Option for permanent activation for %1$s', TWOCLICK_TEXTDOMAIN), $var_sValue); ?></label>
											</div>
											<?php
										} // END foreach((array) $this->array_SupportedNetworks as $var_sKey => $var_sValue)
										?>
									</div>
								</div>

								<!-- Position -->
								<div style="padding-top:25px;">
									<div style="float:left; width:100px"><?php _e('Position', TWOCLICK_TEXTDOMAIN); ?></div>
									<div style="margin-left:100px;">
										<div>
											<select name="twoclick_buttons_settings[twoclick_buttons_where]">
												<option <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_where'] == 'before') echo 'selected="selected"'; ?> value="before"><?php _e('Before the Post', TWOCLICK_TEXTDOMAIN); ?></option>
												<option <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_where'] == 'after') echo 'selected="selected"'; ?> value="after"><?php _e('After the Post', TWOCLICK_TEXTDOMAIN); ?></option>
												<option <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_where'] == 'shortcode') echo 'selected="selected"'; ?> value="shortcode"><?php _e('Manuall (Shortcode)', TWOCLICK_TEXTDOMAIN); ?></option>
												<option <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_where'] == 'template') echo 'selected="selected"'; ?> value="template"><?php _e('Manuall (Template)', TWOCLICK_TEXTDOMAIN); ?></option>
											</select>
										</div>
										<div>
											<p>
												<?php _e('If you choose "Manuall (Shortcode)", you can use the shortcode <strong>[twoclick_buttons]</strong> inside your articles.', TWOCLICK_TEXTDOMAIN); ?><br />
												<?php _e('If you choose "Manuall (Template)", you can use the code <strong>&lt;?php if(function_exists(\'get_twoclick_buttons\')) {get_twoclick_buttons(get_the_ID());}?&gt;</strong> inside your template. It\'s using all settings for "Display". <em><strong>Note:</strong> It will only work in single post or page templates. Not in any loop.</em>', TWOCLICK_TEXTDOMAIN); ?>
											</p>
										</div>

										<!-- Auf welchen Seiten sollen die Buttons angezeigt werden -->
										<div id="exclude-page" class="exclude-pages<?php if(!isset($this->array_TwoclickButtonsOptions['twoclick_buttons_display_page']) || $this->array_TwoclickButtonsOptions['twoclick_buttons_display_page'] == 0) {echo ' display-hidden';} ?>">
											<?php _e('Exclude Pages:', TWOCLICK_TEXTDOMAIN); ?>
											<?php $this->_get_pages(); ?>
										</div>

										<div>
											<p>
												<strong><?php _e('Posts and Pages Handling', TWOCLICK_TEXTDOMAIN); ?></strong>
											</p>
										</div>
										<div>
											<div style="margin-top:10px;">
												<input type="checkbox" value="1" <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_display_page'] == '1') echo 'checked="checked"'; ?> name="twoclick_buttons_settings[twoclick_buttons_display_page]" id="twoclick_buttons_settings[twoclick_buttons_display_page]" onchange="toggleElementVisibility('exclude-page')" />
												<label for="twoclick_buttons_settings[twoclick_buttons_display_page]"><?php _e('Display on CMS-Pages', TWOCLICK_TEXTDOMAIN); ?></label>
											</div>
											<div>
												<input type="checkbox" value="1" <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_display_index'] == '1') echo 'checked="checked"'; ?> name="twoclick_buttons_settings[twoclick_buttons_display_index]" id="twoclick_buttons_settings[twoclick_buttons_display_index]" />
												<label for="twoclick_buttons_settings[twoclick_buttons_display_index]"><?php _e('Display on Index', TWOCLICK_TEXTDOMAIN); ?></label>
											</div>

											<div style="margin-top:10px;">
												<input type="checkbox" value="1" <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_display_private'] == '1') echo 'checked="checked"'; ?> name="twoclick_buttons_settings[twoclick_buttons_display_private]" id="twoclick_buttons_settings[twoclick_buttons_display_private]" />
												<label for="twoclick_buttons_settings[twoclick_buttons_display_private]"><?php _e('Display on Private Posts', TWOCLICK_TEXTDOMAIN); ?></label>
											</div>
											<div>
												<input type="checkbox" value="1" <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_display_password'] == '1') echo 'checked="checked"'; ?> name="twoclick_buttons_settings[twoclick_buttons_display_password]" id="twoclick_buttons_settings[twoclick_buttons_display_password]" />
												<label for="twoclick_buttons_settings[twoclick_buttons_display_password]"><?php _e('Display on Password Protected Posts', TWOCLICK_TEXTDOMAIN); ?></label>
											</div>
											<?php
											// Prüfen ob die Sidebarwidget-Klasse vorhanden ist
											if(is_readable(plugin_dir_path(__FILE__) . 'class-twoclick-sidebar-widget.php')) {
												?>
												<div>
													<input type="checkbox" value="1" <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_display_sidebar_widget'] == '1') echo 'checked="checked"'; ?> name="twoclick_buttons_settings[twoclick_buttons_display_sidebar_widget]" id="twoclick_buttons_settings[twoclick_buttons_display_sidebar_widget]" />
													<label for="twoclick_buttons_settings[twoclick_buttons_display_sidebar_widget]"><?php _e('Display Sidebar-Widget', TWOCLICK_TEXTDOMAIN); ?></label> <span class="description">(<?php _e('Note: Only in single posts or pages.',  TWOCLICK_TEXTDOMAIN); ?>)</span>
												</div>
												<?php
											} // END if(is_readable(plugin_dir_path(__FILE__) . 'class-twoclick-sidebar-widget.php'))
											?>

											<div style="margin-top:10px;">
												<input type="checkbox" value="1" <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_display_year'] == '1') echo 'checked="checked"'; ?> name="twoclick_buttons_settings[twoclick_buttons_display_year]" id="twoclick_buttons_settings[twoclick_buttons_display_year]" />
												<label for="twoclick_buttons_settings[twoclick_buttons_display_year]"><?php _e('Display on Yearly Archives', TWOCLICK_TEXTDOMAIN); ?></label> <span class="description">(<?php _e('Note: Not every theme supports this option.',  TWOCLICK_TEXTDOMAIN); ?>)</span>
											</div>
											<div>
												<input type="checkbox" value="1" <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_display_month'] == '1') echo 'checked="checked"'; ?> name="twoclick_buttons_settings[twoclick_buttons_display_month]" id="twoclick_buttons_settings[twoclick_buttons_display_month]" />
												<label for="twoclick_buttons_settings[twoclick_buttons_display_month]"><?php _e('Display on Monthly Archives', TWOCLICK_TEXTDOMAIN); ?></label> <span class="description">(<?php _e('Note: Not every theme supports this option.',  TWOCLICK_TEXTDOMAIN); ?>)</span>
											</div>
											<div>
												<input type="checkbox" value="1" <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_display_day'] == '1') echo 'checked="checked"'; ?> name="twoclick_buttons_settings[twoclick_buttons_display_day]" id="twoclick_buttons_settings[twoclick_buttons_display_day]" />
												<label for="twoclick_buttons_settings[twoclick_buttons_display_day]"><?php _e('Display on Daily Archives', TWOCLICK_TEXTDOMAIN); ?></label> <span class="description">(<?php _e('Note: Not every theme supports this option.',  TWOCLICK_TEXTDOMAIN); ?>)</span>
											</div>

											<div style="margin-top:10px;">
												<input type="checkbox" value="1" <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_display_search'] == '1') echo 'checked="checked"'; ?> name="twoclick_buttons_settings[twoclick_buttons_display_search]" id="twoclick_buttons_settings[twoclick_buttons_display_search]" />
												<label for="twoclick_buttons_settings[twoclick_buttons_display_search]"><?php _e('Display on Search-Pages', TWOCLICK_TEXTDOMAIN); ?></label> <span class="description">(<?php _e('Note: Not every theme supports this option.',  TWOCLICK_TEXTDOMAIN); ?>)</span>
											</div>
											<div>
												<input type="checkbox" value="1" <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_display_category'] == '1') echo 'checked="checked"'; ?> name="twoclick_buttons_settings[twoclick_buttons_display_category]" id="twoclick_buttons_settings[twoclick_buttons_display_category]" />
												<label for="twoclick_buttons_settings[twoclick_buttons_display_category]"><?php _e('Display on Category-Archive', TWOCLICK_TEXTDOMAIN); ?></label> <span class="description">(<?php _e('Note: Not every theme supports this option.',  TWOCLICK_TEXTDOMAIN); ?>)</span>
											</div>
											<div>
												<input type="checkbox" value="1" <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_display_tag'] == '1') echo 'checked="checked"'; ?> name="twoclick_buttons_settings[twoclick_buttons_display_tag]" id="twoclick_buttons_settings[twoclick_buttons_display_tag]" />
												<label for="twoclick_buttons_settings[twoclick_buttons_display_tag]"><?php _e('Display on Tag-Archive', TWOCLICK_TEXTDOMAIN); ?></label> <span class="description">(<?php _e('Note: Not every theme supports this option.',  TWOCLICK_TEXTDOMAIN); ?>)</span>
											</div>
											<div>
												<p>
													<?php _e('On singleposts the buttons will be shown by default. There is no option needed.', TWOCLICK_TEXTDOMAIN); ?>
												</p>
											</div>


											<!-- Custom Post Types -->
											<?php
											$array_CustomPostTypes = $this->_get_custom_post_types();

											if($array_CustomPostTypes) {
												?>
												<div>
													<p>
														<strong><?php _e('Custom Post Type Handling', TWOCLICK_TEXTDOMAIN); ?></strong>
													</p>
												</div>
												<?php
												$count_i = 1;
												foreach((array) $array_CustomPostTypes as $key => $value) {
													?>
													<div<?php if($count_i == 1) {echo ' style="margin-top:10px;"';}?>>
														<input type="checkbox" value="1" <?php if((isset($this->array_TwoclickButtonsOptions['twoclick_buttons_exclude_cpt'][$value])) && ($this->array_TwoclickButtonsOptions['twoclick_buttons_exclude_cpt'][$value] == '1')) {echo 'checked="checked"';} ?> name="twoclick_buttons_settings[twoclick_buttons_exclude_cpt][<?php echo $value; ?>]" id="twoclick_buttons_settings[twoclick_buttons_exclude_cpt][<?php echo $value; ?>]" />
														<label for="twoclick_buttons_settings[twoclick_buttons_exclude_cpt][<?php echo $value; ?>]"><?php printf(__('Exclude on Custom Post Type "%1$s"', TWOCLICK_TEXTDOMAIN), '<em>' . $value . '</em>'); ?></label>
													</div>
													<?php
													$count_i++;
												} // END foreach((array) $array_CustomPostTypes as $key => $value)
											}
											?>
										</div>
									</div>
								</div>
							</div>
						</div>
					</div>
				</div>
			</div>
			<?php
		} // END private function render_general_settings()

		/**
		 * Rendering the button settings for each button
		 *
		 * @since 1.0
		 * @author ppfeufer
		 */
		private function render_button_settings() {
			?>
			<!-- Facebook -->
			<div class="metabox-holder clearfix">
				<div id="post-body">
					<div id="post-body-content">
						<div class="postbox clearfix">
							<h3><span><?php _e('Facebook', TWOCLICK_TEXTDOMAIN); ?></span></h3>
							<div class="inside">
								<div style="clear:both;">
									<div>
										<label for="twoclick_buttons_settings[twoclick_buttons_facebook_action]" style="display:inline-block; width:100px;"><?php _e('Button:', TWOCLICK_TEXTDOMAIN); ?></label>
										<select name="twoclick_buttons_settings[twoclick_buttons_facebook_action]">
											<option <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_facebook_action'] == 'recommend') echo 'selected="selected"'; ?> value="recommend"><?php _e('Recommend', TWOCLICK_TEXTDOMAIN); ?></option>
											<option <?php if($this->_array_TwoclickButtonsOptions['twoclick_buttons_facebook_action'] == 'like') echo 'selected="selected"'; ?> value="like"><?php _e('Like', TWOCLICK_TEXTDOMAIN); ?></option>
										</select>
									</div>
								</div>
							</div>
						</div>
					</div>
				</div>
			</div>

			<!-- Twitter -->
			<div class="metabox-holder clearfix">
				<div id="post-body">
					<div id="post-body-content">
						<div class="postbox clearfix">
							<h3><span><?php _e('Twitter', TWOCLICK_TEXTDOMAIN); ?></span></h3>
							<div class="inside">
								<div>
									<div style="display:inline-block; width:100px;">
										RT @:
									</div>
									<div style="display:inline-block;">
										<input type="text" value="<?php echo $this->array_TwoclickButtonsOptions['twoclick_buttons_twitter_reply']; ?>" name="twoclick_buttons_settings[twoclick_buttons_twitter_reply]" id="twoclick_buttons_settings[twoclick_buttons_twitter_reply]" class="required" />
										<span class="description"><?php _e('Please use \'yourname\', <strong>not</strong> \'RT @yourname\'.', TWOCLICK_TEXTDOMAIN); ?></span>
									</div>
								</div>

								<div>
									<div style="display:inline-block; width:100px;">
										<?php _e('Tweettext:', TWOCLICK_TEXTDOMAIN); ?>
									</div>
									<div style="display:inline-block;">
										<input type="radio" value="default" <?php if ($this->array_TwoclickButtonsOptions['twoclick_buttons_twitter_tweettext'] == 'default') echo 'checked="checked"'; ?> name="twoclick_buttons_settings[twoclick_buttons_twitter_tweettext]" id="twoclick_buttons_settings[twoclick_buttons_twitter_tweettext_default]" />
										<select name="twoclick_buttons_settings[twoclick_buttons_twitter_tweettext_default_as]">
											<option <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_twitter_tweettext_default_as'] == 'posttitle-blogtitle') echo 'selected="selected"'; ?> value="posttitle-blogtitle"><?php _e('Posttitle &raquo; Blogtitle', TWOCLICK_TEXTDOMAIN); ?></option>
											<option <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_twitter_tweettext_default_as'] == 'posttitle') echo 'selected="selected"'; ?> value="posttitle"><?php _e('Posttitle', TWOCLICK_TEXTDOMAIN); ?></option>
										</select>
										<label for="twoclick_buttons_settings[twoclick_buttons_twitter_tweettext_default]"><?php _e('The title of the page the button is on.', TWOCLICK_TEXTDOMAIN); ?></label>
									</div>

									<div style="margin-left:104px;">
										<input type="radio" value="own" <?php if ($this->array_TwoclickButtonsOptions['twoclick_buttons_twitter_tweettext'] == 'own') echo 'checked="checked"'; ?> name="twoclick_buttons_settings[twoclick_buttons_twitter_tweettext]" id="twoclick_buttons_settings[twoclick_buttons_twitter_tweettext_own]" />
										<input type="text" value="<?php echo $this->array_TwoclickButtonsOptions['twoclick_buttons_twitter_tweettext_owntext']; ?>" name="twoclick_buttons_settings[twoclick_buttons_twitter_tweettext_owntext]" id="twoclick_buttons_settings[twoclick_buttons_twitter_tweettext_owntext]" />
										<span class="description"><?php _e('This is the text that people will include in their Tweet when they share from your website.', TWOCLICK_TEXTDOMAIN); ?></span>
										<?php
										if($this->array_TwoclickButtonsOptions['twoclick_buttons_twitter_tweettext'] == 'own' && strlen($this->array_TwoclickButtonsOptions['twoclick_buttons_twitter_tweettext_owntext']) == 0) {
											?>
											<div class="error">
												<p style="font-weight:bold;">
													<?php _e('Custom tweettext missing !!!', TWOCLICK_TEXTDOMAIN); ?>
												</p>
												<p>
													<?php _e('Please enter a custom tweettext. Otherweise the plugin will use default settings for tweetext as &quot;<strong>Posttitle &raquo; Blogtitle</strong>&quot;', TWOCLICK_TEXTDOMAIN); ?>
												</p>
											</div>
											<?php
										} // END if($this->array_TwoclickButtonsOptions['twoclick_buttons_twitter_tweettext'] == 'own' && strlen($this->array_TwoclickButtonsOptions['twoclick_buttons_twitter_tweettext_owntext']) == 0)
										?>
									</div>
									<div style="margin-left:104px;">
										<input type="checkbox" value="1" <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_twitter_hashtags'] == '1') echo 'checked="checked"'; ?> name="twoclick_buttons_settings[twoclick_buttons_twitter_hashtags]" id="twoclick_buttons_settings[twoclick_buttons_twitter_hashtags]" />
										<label for="twoclick_buttons_settings[twoclick_buttons_twitter_hashtags]"><?php _e('Use tags as #hashtags', TWOCLICK_TEXTDOMAIN); ?></label>
									</div>
								</div>
							</div>
						</div>
					</div>
				</div>
			</div>

			<!-- Flattr -->
			<div class="metabox-holder clearfix">
				<div id="post-body">
					<div id="post-body-content">
						<div class="postbox clearfix">
							<h3><span><?php _e('Flattr', TWOCLICK_TEXTDOMAIN); ?></span></h3>
							<div class="inside">
								<label for="twoclick_buttons_settings[twoclick_buttons_flattr_uid]" style="display:inline-block; width:100px;"><?php _e('User:', TWOCLICK_TEXTDOMAIN); ?></label>
								<input type="text" value="<?php echo $this->array_TwoclickButtonsOptions['twoclick_buttons_flattr_uid']; ?>" name="twoclick_buttons_settings[twoclick_buttons_flattr_uid]" id="twoclick_buttons_settings[twoclick_buttons_flattr_uid]" class="required" />
							</div>
						</div>
					</div>
				</div>
			</div>

			<!-- Pinterest -->
			<div class="metabox-holder clearfix">
				<div id="post-body">
					<div id="post-body-content">
						<div class="postbox clearfix">
							<h3><span><?php _e('Pinterest', TWOCLICK_TEXTDOMAIN); ?></span></h3>
							<div class="inside">
								<div style="display:inline-block; width:100px;">
									<?php _e('Description:', TWOCLICK_TEXTDOMAIN); ?>
								</div>
								<div style="display:inline-block;">
									<select name="twoclick_buttons_settings[twoclick_buttons_pinterest_description]">
										<option <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_pinterest_description'] == 'posttitle') echo 'selected="selected"'; ?> value="posttitle"><?php _e('Posttitle', TWOCLICK_TEXTDOMAIN); ?></option>
										<option <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_pinterest_description'] == 'posttitle-tags') echo 'selected="selected"'; ?> value="posttitle-tags"><?php _e('Posttitle and #Tags', TWOCLICK_TEXTDOMAIN); ?></option>
										<option <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_pinterest_description'] == 'posttitle-excerpt') echo 'selected="selected"'; ?> value="posttitle-excerpt"><?php _e('Posttitle &raquo; Excerpt', TWOCLICK_TEXTDOMAIN); ?></option>
									</select>
									<label for="twoclick_buttons_settings[twoclick_buttons_pinterest_description]"><?php _e('The description wich is send to Pinterest.', TWOCLICK_TEXTDOMAIN); ?></label>
								</div>
							</div>
						</div>
					</div>
				</div>
			</div>
			<?php
		} // END private function render_button_settings()

		/**
		 * Rendering the infotext settings
		 *
		 * @since 1.0
		 * @author ppfeufer
		 */
		private function render_infotext_settings() {
			?>
			<!-- Infotexte -->
			<div class="metabox-holder clearfix">
				<div id="post-body">
					<div id="post-body-content">
						<div class="postbox clearfix">
							<h3><span><?php _e('Infotext', TWOCLICK_TEXTDOMAIN); ?></span></h3>
							<div class="inside">
								<div class="twoclick-infotexte">
									<?php
									foreach((array) $this->array_SupportedNetworks as $var_sKey => $var_sValue) {
										?>
										<!-- <?php echo $var_sValue; ?> -->
										<div class="twoclick-infotext-input">
											<div class="label">
												<label for="twoclick_buttons_settings[twoclick_buttons_infotext_<?php echo $var_sKey; ?>]"><?php _e($var_sValue, TWOCLICK_TEXTDOMAIN); ?></label>
											</div>
											<div class="input">
												<textarea class="code large-text" rows="5" name="twoclick_buttons_settings[twoclick_buttons_infotext_<?php echo $var_sKey; ?>]" style="width:450px;"><?php echo esc_textarea($this->array_TwoclickButtonsOptions['twoclick_buttons_infotext_' . $var_sKey]); ?></textarea>
											</div>
										</div>
										<?php
									} // END foreach((array) $this->array_SupportedNetworks as $var_sKey => $var_sValue)
									?>
									<!-- Infobutton -->
									<div class="twoclick-infotext-input">
										<div class="label">
											<label for="twoclick_buttons_settings[twoclick_buttons_infotext_infobutton]"><?php _e('Infobutton:', TWOCLICK_TEXTDOMAIN); ?></label>
										</div>
										<div class="input">
											<textarea class="code large-text" rows="5" name="twoclick_buttons_settings[twoclick_buttons_infotext_infobutton]" style="width:450px;"><?php echo esc_textarea($this->array_TwoclickButtonsOptions['twoclick_buttons_infotext_infobutton']); ?></textarea>
										</div>
									</div>

									<!--  Permaoption -->
									<div class="twoclick-infotext-input">
										<div class="label">
											<label for="twoclick_buttons_settings[twoclick_buttons_infotext_permaoption]"><?php _e('Permaoption:', TWOCLICK_TEXTDOMAIN); ?></label>
										</div>
										<div class="input">
											<textarea class="code large-text" rows="5" name="twoclick_buttons_settings[twoclick_buttons_infotext_permaoption]" style="width:450px;"><?php echo esc_textarea($this->array_TwoclickButtonsOptions['twoclick_buttons_infotext_permaoption']); ?></textarea>
										</div>
									</div>

									<!-- Infolink -->
									<div class="twoclick-infotext-input">
										<div class="label">
											<label for="twoclick_buttons_settings[twoclick_buttons_infolink]" style="display:inline-block; width:100px;"><?php _e('Infolink:', TWOCLICK_TEXTDOMAIN); ?></label>
										</div>
										<div class="input">
											<input style="width:450px;" type="text" value="<?php echo $this->array_TwoclickButtonsOptions['twoclick_buttons_infolink']; ?>" name="twoclick_buttons_settings[twoclick_buttons_infolink]" id="twoclick_buttons_settings[twoclick_buttons_infolink]" /><br />
											<span class="description"><?php _e('Links starting with http://', TWOCLICK_TEXTDOMAIN); ?></span>
										</div>
									</div>

									<!-- Introtext -->
									<div class="twoclick-infotext-input">
										<div class="label">
											<label for="twoclick_buttons_settings[twoclick_buttons_introtext]"><?php _e('Introtext:', TWOCLICK_TEXTDOMAIN); ?></label>
										</div>
										<div class="input">
											<textarea class="code large-text" rows="5" name="twoclick_buttons_settings[twoclick_buttons_introtext]" style="width:450px;"><?php echo esc_textarea($this->array_TwoclickButtonsOptions['twoclick_buttons_introtext']); ?></textarea><br />
											<span class="description"><?php _e('This "Introtext" will be displayed before the buttons. You can use some HTML here. Paragraphs will be included automaticly.', TWOCLICK_TEXTDOMAIN); ?></span>
										</div>
									</div>
								</div>
							</div>
						</div>
					</div>
				</div>
			</div>
			<?php
		} // END private function render_infotext_settings()

		/**
		 * Rendering other settings
		 *
		 * @since 1.0
		 * @author ppfeufer
		 */
		private function render_other_settings() {
			?>
			<!-- Artikelbild -->
			<div class="metabox-holder clearfix">
				<div id="post-body">
					<div id="post-body-content">
						<div class="postbox clearfix">
							<h3><span><?php _e('Postthumbnail <em>(optional)</em>', TWOCLICK_TEXTDOMAIN); ?></span></h3>
							<div class="inside">
								<div>
									<div style="display:inline-block; width:100px; vertical-align:top;">
										<?php _e('Link:', TWOCLICK_TEXTDOMAIN); ?>
									</div>
									<div style="display:inline-block;">
										<input type="text" value="<?php echo $this->array_TwoclickButtonsOptions['twoclick_buttons_postthumbnail']; ?>" name="twoclick_buttons_settings[twoclick_buttons_postthumbnail]" id="twoclick_buttons_postthumbnail" />
										<input id="upload-image-button" type="button" value="<?php _e('Upload Image', TWOCLICK_TEXTDOMAIN); ?>" /><br />
										<span class="description"><?php _e('Links starting with http://', TWOCLICK_TEXTDOMAIN); ?></span>
									</div>
								</div>
								<div>
									<?php
									if(!empty($this->array_TwoclickButtonsOptions['twoclick_buttons_postthumbnail'])) {
										?>
										<div>
											<p><img src="<?php echo $this->array_TwoclickButtonsOptions['twoclick_buttons_postthumbnail']; ?>" /></p>
										</div>
										<?php
									} // END if(!empty($this->array_TwoclickButtonsOptions['twoclick_buttons_postthumbnail'))
									?>
									<div>
										<p>
											<?php _e('This image is taken for Facebook, Google+ and Pinterest if there is no postthumbnail or other image inside the article or page. If empty, no image will be used for and the pinterest-button will be disabled for this article.', TWOCLICK_TEXTDOMAIN); ?>
										</p>
									</div>
								</div>
							</div>
						</div>
					</div>
				</div>
			</div>

			<!-- OpenGraph Tags -->
			<div class="metabox-holder clearfix">
				<div id="post-body">
					<div id="post-body-content">
						<div class="postbox clearfix">
							<h3><span><?php _e('OpenGraph-Tags <em>(optional)</em>', TWOCLICK_TEXTDOMAIN); ?></span></h3>
							<div class="inside">
								<div>
									<div style="display:inline-block; width:100px; vertical-align:top;">
										<?php _e('Disable:', TWOCLICK_TEXTDOMAIN); ?>
									</div>
									<div style="display:inline-block;;">
										<input type="checkbox" value="1" <?php if($this->array_TwoclickButtonsOptions['twoclick_buttons_opengraph_disable'] == '1') echo 'checked="checked"'; ?> name="twoclick_buttons_settings[twoclick_buttons_opengraph_disable]" id="twoclick_buttons_settings[twoclick_buttons_opengraph_disable]" />
									</div>
								</div>

								<div style="margin-left:100px;">
									<p>
										<?php _e('The OpenGraph-Metatags are necessary for some networks, such as Facebook, Google+, Xing and Pinterest.', TWOCLICK_TEXTDOMAIN); ?>
										<br />
										<?php _e('Some other plugins or themes may have enabled the OpenGraph-Metatags by default. Please make sure this is the only plugin to add these tags to your website. Otherwise disble the OpenGraph-Metatags here.', TWOCLICK_TEXTDOMAIN); ?>
									</p>
								</div>
							</div>
						</div>
					</div>
				</div>
			</div>

			<!-- Custom CSS -->
			<div class="metabox-holder clearfix">
				<div id="post-body">
					<div id="post-body-content">
						<div class="postbox clearfix">
							<h3><span><?php _e('Custom CSS (optional)', TWOCLICK_TEXTDOMAIN); ?></span></h3>
							<div class="inside">
								<p>
									<?php
									_e('If you want to customize the output of your buttons, you can enter some CSS-rules here.', TWOCLICK_TEXTDOMAIN);
									?>
								</p>
								<p>
									<textarea class="code large-text" rows="5" name="twoclick_buttons_settings[twoclick_buttons_custom_css]" style="width:450px;"><?php echo esc_textarea($this->array_TwoclickButtonsOptions['twoclick_buttons_custom_css']); ?></textarea>
								</p>
							</div>
						</div>
					</div>
				</div>
			</div>

			<!-- Support -->
			<div class="metabox-holder clearfix">
				<div id="post-body">
					<div id="post-body-content">
						<div class="postbox clearfix">
							<h3><span><?php _e('Support', TWOCLICK_TEXTDOMAIN); ?></span></h3>
							<div class="inside">
								<p>
									<?php
									$array_PluginData = $this->_get_plugin_data();

									printf(__('If you have any questions about the settings or the plugin, feel free to %1$s.', TWOCLICK_TEXTDOMAIN),
										'<a href="' . esc_url($array_PluginData['PluginURI']) . '">' . __('leave me a comment', TWOCLICK_TEXTDOMAIN) . '</a>'
									);
									?>
								</p>
							</div>
						</div>
					</div>
				</div>
			</div>
			<?php
		} // END private function render_other_settings()

		/**
		 * Seiten hierarchisch auflisten
		 *
		 * @since 1.0
		 * @author ppfeufer
		 */
		private function _get_pages() {
			$var_sPostType = 'page';

			$args = array(
				'order' => 'ASC',
				'orderby' => 'title',
				'posts_per_page' => '9999',
				'post_type' => $var_sPostType,
				'post_status' => 'publish',
				'suppress_filters' => true,
				'update_post_term_cache' => false,
				'update_post_meta_cache' => false
			);

			$get_posts = new WP_Query;
			$posts = $get_posts->query($args);

			if(!$get_posts->post_count || !$posts) {
				echo '<p>' . __('No items.', TWOCLICK_TEXTDOMAIN) . '</p>';

				return;
			} // END if(!$get_posts->post_count || !$posts)

			$db_fields = false;

			if(is_post_type_hierarchical($var_sPostType)) {
				$db_fields = array(
					'parent' => 'post_parent',
					'id' => 'ID'
				);
			} // END if(is_post_type_hierarchical($var_sPostType))

			$walker = new Twoclick_Social_Media_Buttons_Pages_Walker($db_fields);

			$removed_args = array(
				'action',
				'customlink-tab',
				'edit-menu-item',
				'menu-item',
				'page-tab',
				'_wpnonce',
			);
			?>
			<div class="posttypediv">
				<div id="<?php echo $var_sPostType; ?>-all" class="select-pages">
					<ul id="<?php echo $var_sPostType; ?>checklist" class="list:<?php echo $var_sPostType; ?> categorychecklist form-no-clear">
						<?php
						$args['walker'] = $walker;

						$posts = apply_filters('nav_menu_items_' . $var_sPostType, $posts, $args);
						$checkbox_items = walk_nav_menu_tree(array_map('wp_setup_nav_menu_item', $posts), 0, (object) $args);

						echo $checkbox_items;
						?>
					</ul>
				</div>
			</div>
			<?php
		} // END private function _get_pages()

		/**
		 * <[ Helper ]>
		 * Genutzte Custom Post Types zurückgeben.
		 *
		 * @since 1.1
		 * @author ppfeufer
		 *
		 * @param boolean $return
		 * @return Ambigous <multitype:, array, multitype:unknown , unknown>
		 */
		private function _get_custom_post_types() {
			$array_Arguments = array(
				'public' => true,
				'_builtin' => false
			);

			$var_sOutput = 'names'; // names or objects, note names is the default
			$var_sOperator = 'and'; // 'and' or 'or'
			$array_CustomPostTypes = get_post_types($array_Arguments, $var_sOutput, $var_sOperator);

			if(empty($array_CustomPostTypes)) {
				return false;
			}

			return $array_CustomPostTypes;
		} // END private function _get_custom_post_types()

		/**
		 * Link zur Adminseite in der Pluginübersicht hinzufügen.
		 *
		 * @since 1.2.0
		 * @author ppfeufer
		 */
		function _settings_link($links, $file) {
			if($file == '2-click-socialmedia-buttons/2-click-socialmedia-buttons.php' && function_exists('admin_url')) {
				$settings_link = '<a href="' . admin_url('options-general.php?page=twoclick_buttons') . '">' . __('Settings', TWOCLICK_TEXTDOMAIN) . '</a>';

				array_unshift( $links, $settings_link); // before the other links
			} // END if($file == '2-click-socialmedia-buttons/2-click-socialmedia-buttons.php' && function_exists('admin_url'))

			return $links;
		} // END function _settings_link($links, $file)

		/**
		 * Changelog bei Pluginupdate ausgeben.
		 *
		 * @since 0.1
		 * @author ppfeufer
		 */
		function _update_notice() {
			$array_2CSMB_Data = $this->_get_plugin_data();
			$var_sUserAgent = 'Mozilla/5.0 (X11; Linux x86_64; rv:5.0) Gecko/20100101 Firefox/5.0 WorPress Plugin 2-Click Social Media Buttons (Version: ' . $array_2CSMB_Data['Version'] . ') running on: ' . get_bloginfo('url');
			$url_readme = 'http://plugins.trac.wordpress.org/browser/2-click-socialmedia-buttons/trunk/readme.txt?format=txt';
			$data = '';

			if(ini_get('allow_url_fopen')) {
				$data = file_get_contents($url_readme);
			} else {
				if(function_exists('curl_init')) {
					$cUrl_Channel = curl_init();
					curl_setopt($cUrl_Channel, CURLOPT_URL, $url_readme);
					curl_setopt($cUrl_Channel, CURLOPT_RETURNTRANSFER, 1);
					curl_setopt($cUrl_Channel, CURLOPT_USERAGENT, $var_sUserAgent);
					$data = curl_exec($cUrl_Channel);
					curl_close($cUrl_Channel);
				} // END if(function_exists('curl_init'))
			} // END if(ini_get('allow_url_fopen'))

			if($data) {
				$matches = null;
				$regexp = '~==\s*Changelog\s*==\s*=\s*[0-9.]+\s*=(.*)(=\s*' . preg_quote($array_2CSMB_Data['Version']) . '\s*=|$)~Uis';

				if(preg_match($regexp, $data, $matches)) {
					$changelog = (array) preg_split('~[\r\n]+~', trim($matches[1]));

					echo '</div><div class="update-message" style="font-weight: normal;"><strong>' . __('What\'s new:', TWOCLICK_TEXTDOMAIN) . '</strong>';
					$ul = false;
					$version = 99;

					foreach($changelog as $index => $line) {
						if(version_compare($version, $array_2CSMB_Data['Version'], ">")) {
							if(preg_match('~^\s*\*\s*~', $line)) {
								if(!$ul) {
									echo '<ul style="list-style: disc; margin-left: 20px;">';
									$ul = true;
								} // END if(!$ul)

								$line = preg_replace('~^\s*\*\s*~', '', $line);

								$line = preg_replace('/\\[(.*?)\\]\\((.*?)\\)/', '<a href="\\2">\\1</a>', $line);
								$line = preg_replace('/`(.*?)`/', '<code>\\1</code>', $line);
								$line = preg_replace('/\\*\\*(.*?)\\*\\*/', ' <strong>\\1</strong>', $line);
								$line = preg_replace('/\\*(.*?)\\*/', ' <em>\\1</em>', $line);
								echo '<li>' . $line . '</li>';
							} else {
								if($ul) {
									echo '</ul>';
									$ul = false;
								} // END if($ul)

								$version = trim($line, " =");
								echo '<p style="margin: 5px 0;"><h4>' . $version . '</h4></p>';
							} // END if(preg_match('~^\s*\*\s*~', $line))
						} // END if(version_compare($version, $array_2CSMB_Data['Version'],">"))
					} // END foreach($changelog as $index => $line)

					if($ul) {
						echo '</ul><div style="clear: left;"></div>';
					} // END if($ul)

					echo '</div>';
				} // END if(preg_match($regexp, $data, $matches))
			} else {
				/**
				 * Returning if we can't use file_get_contents or cURL
				 */
				return;
			} // END if($data)
		} // END function _update_notice()
	} // END class Twoclick_Social_Media_Buttons_Backend

	new Twoclick_Social_Media_Buttons_Backend();
} // END if(!class_exists('Twoclick_Social_Media_Buttons_Backend'))