<?php
if(!class_exists('Vision_Options') ){

    // Windows-proof constants: replace backward by forward slashes - thanks to: https://github.com/peterbouwmeester
    $fslashed_dir = trailingslashit(str_replace('\\','/', dirname(__FILE__)));
    $fslashed_abs = trailingslashit(str_replace('\\','/', ABSPATH));
    
    if(!defined('Vision_OPTIONS_DIR')) {
        define('Vision_OPTIONS_DIR', $fslashed_dir);
    }
    
    if(!defined('Vision_OPTIONS_URL')) {
        define('Vision_OPTIONS_URL', site_url(str_replace($fslashed_abs, '', $fslashed_dir)));
    }

    class Vision_Options {
    
        protected $framework_url = 'http://www.visionframework.com/';
        protected $framework_version = '1.0.0';
        
        public $dir = Vision_OPTIONS_DIR;
        public $url = Vision_OPTIONS_URL;
        public $page = '';
        public $args = array();
        public $sections = array();
        public $extra_tabs = array();
        public $errors = array();
        public $warnings = array();
        public $options = array();
		public $options_defaults = null;

        /**
         * Class Constructor. Defines the args for the theme options class
         *
         * @since Vision_Options 1.0.0
         * @param $array $args Arguments. Class constructor arguments.
        */
        function __construct($sections = array(), $args = array(), $extra_tabs = array()) {    
            $defaults = array();
        
            $defaults['opt_name'] = ''; // Must be defined by theme/plugin
            $defaults['google_api_key'] = ''; // Must be defined for use with Google Webfonts field type
            $defaults['last_tab'] = '0';
            $defaults['menu_icon'] = Vision_OPTIONS_URL . '/img/menu_icon.png';
            $defaults['menu_title'] = __('Options', Vision_TEXT_DOMAIN);
            $defaults['page_icon'] = 'icon-themes';
            $defaults['page_title'] = __('Options', Vision_TEXT_DOMAIN);
            $defaults['page_slug'] = '_options';
            $defaults['page_cap'] = 'manage_options';
            $defaults['page_type'] = 'menu';
            $defaults['page_parent'] = 'themes.php';
            $defaults['page_position'] = null;
            $defaults['allow_sub_menu'] = true;
            $defaults['show_import_export'] = true;
            $defaults['dev_mode'] = true;
            $defaults['admin_stylesheet'] = 'standard';
            $defaults['help_tabs'] = array();
            $defaults['help_sidebar'] = __('', Vision_TEXT_DOMAIN);

			// The defaults are set so it will preserve the old behavior.
			$defaults['std_show'] = false; // If true, it shows the std value
			$defaults['std_mark'] = ''; // What to print by the field's title if the value shown is std

            // Get args
            $this->args = wp_parse_args($args, $defaults);
            $this->args = apply_filters('vision-opts-args-'.$this->args['opt_name'], $this->args);

            // Get sections
            $this->sections = apply_filters('vision-opts-sections-' . $this->args['opt_name'], $sections);
        
            // Get extra tabs
            $this->extra_tabs = apply_filters('vision-opts-extra-tabs-' . $this->args['opt_name'], $extra_tabs);
        
            // Set option with defaults
            add_action('init', array(&$this, '_set_default_options'));
        
            // Options page
            add_action('admin_menu', array(&$this, '_options_page'));
        
            // Register setting
            add_action('admin_init', array(&$this, '_register_setting'));
        
            // Add the js for error handling before the form
            add_action('vision-opts-page-before-form-' . $this->args['opt_name'], array(&$this, '_errors_js'), 1);
        
            // Add the js for warning handling before the form
            add_action('vision-opts-page-before-form-' . $this->args['opt_name'], array(&$this, '_warnings_js'), 2);
        
            // Hook into the WP feeds for downloading exported settings
            add_action('do_feed_visionopts-' . $this->args['opt_name'], array(&$this, '_download_options'), 1, 1);
        
            // Get the options for use later on
            $this->options = get_option($this->args['opt_name']);
        }    

		/**
		 * ->_get_std(); This is used to return the std value if std_show is set
		 *
		 * @since Vision_Options 1.0.1
		 * @param string $opt_name: option name to return
		 * @param mixed $default (null): value to return if std not set
		*/
		function _get_std($opt_name, $default = null) {
			if($this->args['std_show'] == true) {
				if(isset($_GET['settings-updated']) || $_GET['settings-updated'] == 'true' || get_transient('vision-opts-saved') == '1')
					return;
				if(is_null($this->options_defaults))
					$this->_default_values(); // fill cache
				$default = array_key_exists($opt_name, $this->options_defaults) ? $this->options_defaults[$opt_name] : $default;
			}
			return $default;
		}

        /**
         * ->get(); This is used to return and option value from the options array
         *
		 * @since Vision_Options 1.0.0
		 * @param string $opt_name: option name to return
		 * @param mixed $default (null): value to return if option not set
        */
		function get($opt_name, $default = null) {
			return ( !empty($this->options[$opt_name]) ) ? $this->options[$opt_name] : $this->_get_std($opt_name, $default);
        }
    
        /**
         * ->set(); This is used to set an arbitrary option in the options array
         *
         * @since Vision_Options 1.0.0
         * @param string $opt_name the name of the option being added
         * @param mixed $value the value of the option being added
        */
        function set($opt_name = '', $value = '') {
            if($opt_name != '') {
                $this->options[$opt_name] = $value;
                update_option($this->args['opt_name'], $this->options);
            }
        }
    
        /**
         * ->show(); This is used to echo and option value from the options array
         *
         * @since Vision_Options 1.0.0
         * @param $array $args Arguments. Class constructor arguments.
        */
        function show($opt_name, $default = '') {
            $option = $this->get($opt_name);
            if(!is_array($option) && $option != '') {
                echo $option;
            } elseif($default != '') {
                echo $this->_get_std($opt_name, $default);
            }
        }

        /**
         * Get default options into an array suitable for the settings API
         *
         * @since Vision_Options 1.0.0
        */
		function _default_values() {
			if(!is_null($this->sections) && is_null($this->options_defaults)) {
				// fill the cache
				foreach($this->sections as $section) {
					if(isset($section['fields'])) {
						foreach($section['fields'] as $field) {
							if(isset($field['std']))
								$this->options_defaults[$field['id']] = $field['std'];
						}
					}
				}
			}

            return $this->options_defaults;
        }
    	
    
        /**
         * Set default options on admin_init if option doesn't exist
         *
         * @since Vision_Options 1.0.0
        */
		function _set_default_options() {
			if(!get_option($this->args['opt_name'])) {
				add_option($this->args['opt_name'], $this->_default_values());
			}
			$this->options = get_option($this->args['opt_name']);
        }

        /**
         * Class Options Page Function, creates main options page.
         *
         * @since Vision_Options 1.0.0
        */
        function _options_page() {
            if($this->args['page_type'] == 'submenu') {
                $this->page = add_theme_page(
                    $this->args['page_parent'],
                    $this->args['page_title'], 
                    $this->args['menu_title'], 
                    $this->args['page_cap'], 
                    $this->args['page_slug'], 
                    array(&$this, '_options_page_html')
                );
            } else {
                $this->page = add_theme_page(
                    $this->args['page_title'], 
                    $this->args['menu_title'], 
                    $this->args['page_cap'], 
                    $this->args['page_slug'], 
                    array(&$this, '_options_page_html'),
                    $this->args['menu_icon'],
                    $this->args['page_position']
                );
                        
                if(true === $this->args['allow_sub_menu']) {

                    // This is needed to prevent the top level menu item from showing in the submenu
                    add_theme_page($this->args['page_slug'], $this->args['page_title'], '', $this->args['page_cap'], $this->args['page_slug'], create_function('$a', "return null;"));

                    foreach($this->sections as $k => $section) {
                        add_theme_page(
                            $this->args['page_slug'],
                            $section['title'], 
                            $section['title'], 
                            $this->args['page_cap'], 
                            $this->args['page_slug'].'&tab=' . $k, create_function('$a', "return null;")
                        );
                    }
            
                    if(true === $this->args['show_import_export']) {
                        add_theme_page(
                            $this->args['page_slug'],
                            __('Import / Export', Vision_TEXT_DOMAIN), 
                            __('Import / Export', Vision_TEXT_DOMAIN), 
                            $this->args['page_cap'], 
                            $this->args['page_slug'] . '&tab=import_export_default', create_function('$a', "return null;")
                        );
                    }

                    foreach($this->extra_tabs as $k => $tab) {
                        add_theme_page(
                            $this->args['page_slug'],
                            $tab['title'], 
                            $tab['title'], 
                            $this->args['page_cap'], 
                            $this->args['page_slug'].'&tab=' . $k, create_function('$a', "return null;")
                        );
                    }

                    if(true === $this->args['dev_mode']) {
                        add_theme_page(
                            $this->args['page_slug'],
                            __('Dev Mode Info', Vision_TEXT_DOMAIN), 
                            __('Dev Mode Info', Vision_TEXT_DOMAIN), 
                            $this->args['page_cap'], 
                            $this->args['page_slug'] . '&tab=dev_mode_default', create_function('$a', "return null;")
                        );
                    }
                }
            }

            add_action('admin_print_styles-' . $this->page, array(&$this, '_enqueue'));
            add_action('load-' . $this->page, array(&$this, '_load_page'));
        }

        /**
         * enqueue styles/js for options page
         *
         * @since Vision_Options 1.0.0
        */
        function _enqueue() {
            global $wp_styles;
            
            wp_register_style(
                'vision-opts-css', 
                $this->url . 'css/options.css',
                array('farbtastic'),
                time(),
                'all'
            );

            wp_register_style(
                'vision-opts-custom-css',
                $this->url . 'css/custom.css',
                array('farbtastic'),
                time(),
                'all'
            );
            
            wp_register_style(
                'vision-lte-ie8',
                $this->url . 'css/lteie8.css',
                array('farbtastic'),
                time(),
                'all'
			);

			$wp_styles->add_data( 'vision-lte-ie8', 'conditional', 'lte IE 8' );

			wp_register_style(
				'vision-font-awesome',
				$this->url . 'css/font-awesome.min.css',
				array(),
				time(),
				'all'
			);

			wp_register_style(
				'vision-font-awesome-ie7',
				$this->url . 'css/font-awesome-ie7.min.css',
				array(),
				time(),
				'all'
			);
			
            $wp_styles->add_data( 'vision-font-awesome-ie7', 'conditional', 'lte IE 7' );
            
            wp_register_style(
                'vision-opts-jquery-ui-css',
                apply_filters('vision-opts-ui-theme', $this->url . 'css/jquery-ui-aristo/aristo.css'),
                '',
                time(),
                'all'
            );

            wp_enqueue_style('vision-lte-ie8');

            if($this->args['admin_stylesheet'] == 'standard') {
                wp_enqueue_style('vision-opts-css');
            } elseif($this->args['admin_stylesheet'] == 'custom') {
                wp_enqueue_style('vision-opts-custom-css');
            }

			wp_enqueue_style('vision-font-awesome');
			wp_enqueue_style('vision-font-awesome-ie7');

            wp_enqueue_script(
                'vision-opts-js', 
                $this->url . 'js/options.js', 
                array('jquery'),
                time(),
                true
            );

            wp_localize_script('vision-opts-js', 'vision_opts', array('reset_confirm' => __('Are you sure? You will lose all custom values.', Vision_TEXT_DOMAIN), 'opt_name' => $this->args['opt_name']));
        
            do_action('vision-opts-enqueue-' . $this->args['opt_name']);

            foreach($this->sections as $k => $section) {
                if(isset($section['fields'])) {
                    foreach($section['fields'] as $fieldk => $field) {
                        if(isset($field['type'])) {
                            $field_class = 'Vision_Options_' . $field['type'];
							if(!class_exists($field_class)) {
								$class_file = apply_filters('vision-opts-typeclass-load', $this->dir . 'fields/' . $field['type'] . '/field_' . $field['type'] . '.php', $field_class);
								if($class_file)
									require_once($class_file);
                            }

                            if(class_exists($field_class) && method_exists($field_class, 'enqueue')) {
                                $enqueue = new $field_class('','',$this);
                                $enqueue->enqueue();
                            }
                        }
                    }
                }
            }
        }
    
        /**
         * Download the options file, or display it
         *
         * @since Vision_Options 1.0.0
        */
        function _download_options() {
            //-'.$this->args['opt_name']
            if(!isset($_GET['secret']) || $_GET['secret'] != md5(AUTH_KEY.SECURE_AUTH_KEY)) {
                wp_die('Invalid Secret for options use');
                exit;
            }

            if(!isset($_GET['feed'])){
                wp_die('No Feed Defined');
                exit;
            }

            $backup_options = get_option(str_replace('visionopts-', '', $_GET['feed']));
            $backup_options['vision-opts-backup'] = '1';
            $content = '###' . serialize($backup_options) . '###';

            if(isset($_GET['action']) && $_GET['action'] == 'download_options') {
                header('Content-Description: File Transfer');
                header('Content-type: application/txt');
                header('Content-Disposition: attachment; filename="' . str_replace('visionopts-', '', $_GET['feed']) . '_options_' . date('d-m-Y') . '.txt"');
                header('Content-Transfer-Encoding: binary');
                header('Expires: 0');
                header('Cache-Control: must-revalidate');
                header('Pragma: public');
                echo $content;
                exit;
            } else {
                echo $content;
                exit;
            }
        }

        /**
         * Show page help
         *
         * @since Vision_Options 1.0.0
        */
        function _load_page() {
        
            // Do admin head action for this page
            add_action('admin_head', array(&$this, 'admin_head'));
        
            
        
            $screen = get_current_screen();
        
            if(is_array($this->args['help_tabs'])) {
                foreach($this->args['help_tabs'] as $tab) {
                    $screen->add_help_tab($tab);
                }
            }
        
            if($this->args['help_sidebar'] != '') {
                $screen->set_help_sidebar($this->args['help_sidebar']);
            }
        
            do_action('vision-opts-load-page-' . $this->args['opt_name'], $screen);
        }
    
        /**
         * Do action vision-opts-admin-head for options page
         *
         * @since Vision_Options 1.0.0
        */
        function admin_head() {
            do_action('vision-opts-admin-head-' . $this->args['opt_name'], $this);
        }

        
    
        /**
         * Register Option for use
         *
         * @since Vision_Options 1.0.0
        */
        function _register_setting() {
            register_setting($this->args['opt_name'] . '_group', $this->args['opt_name'], array(&$this,'_validate_options'));

			if(is_null($this->sections))
				return;

            foreach($this->sections as $k => $section) {
                add_settings_section($this->args['opt_name'] . $k . '_section', $section['title'], array(&$this, '_section_desc'), $this->args['opt_name'] . $k . '_section_group');
            
                if(isset($section['fields'])) {
                    foreach($section['fields'] as $fieldk => $field) {
						if(isset($field['title'])) {
							$std_mark = ( !isset($this->options[$field['id']]) && $this->args['std_show'] == true && isset($field['std']) ) ? $this->args['std_mark'] : '';
							$th = $field['title'] . $std_mark;
							if (isset($field['sub_desc']))
								$th .= '<span class="description">' . $field['sub_desc'] . '</span>';
                        } else {
                            $th = '';
                        }
                    
                        add_settings_field($fieldk . '_field', $th, array(&$this,'_field_input'), $this->args['opt_name'] . $k . '_section_group', $this->args['opt_name'] . $k . '_section', $field); // checkbox
                    }
                }
            }
            do_action('vision-opts-register-settings-' . $this->args['opt_name']);
        }

        /**
         * Validate the Options options before insertion
         *
         * @since Vision_Options 1.0.0
        */
        function _validate_options($plugin_options) {
            set_transient('vision-opts-saved', '1', 1000 );

            if(!empty($plugin_options['import'])) {
                if($plugin_options['import_code'] != '') {
                    $import = $plugin_options['import_code'];
                } elseif($plugin_options['import_link'] != '') {
                    $import = wp_remote_retrieve_body(wp_remote_get($plugin_options['import_link']));
                }

                $imported_options = unserialize(trim($import,'###'));
                if(is_array($imported_options) && isset($imported_options['vision-opts-backup']) && $imported_options['vision-opts-backup'] == '1'){
                    $imported_options['imported'] = 1;
                    return $imported_options;
                }
            }
        
            if(!empty($plugin_options['defaults'])) {
                $plugin_options = $this->_default_values();
                return $plugin_options;
            }

            // Validate fields (if needed)
            $plugin_options = $this->_validate_values($plugin_options, $this->options);
        
            if($this->errors) {
                set_transient('vision-opts-errors-' . $this->args['opt_name'], $this->errors, 1000);
            }

            if($this->warnings) {
                set_transient('vision-opts-warnings-' . $this->args['opt_name'], $this->warnings, 1000);
            }

            do_action('vision-opts-options-validate-' . $this->args['opt_name'], $plugin_options, $this->options);

            unset($plugin_options['defaults']);
            unset($plugin_options['import']);
            unset($plugin_options['import_code']);
            unset($plugin_options['import_link']);

            return $plugin_options;    
        }

        /**
         * Validate values from options form (used in settings api validate function)
         * calls the custom validation class for the field so authors can override with custom classes
         *
         * @since Vision_Options 1.0.0
        */
        function _validate_values($plugin_options, $options) {
            foreach($this->sections as $k => $section) {
                if(isset($section['fields'])) {
                    foreach($section['fields'] as $fieldk => $field) {
                        $field['section_id'] = $k;
		        
                        if(isset($field['type']) && ( $field['type']=='checkbox' || $field['type']=='checkbox_hide_below' || $field['type']=='checkbox_hide_all' )){
                            if(!isset($plugin_options[$field['id']]))
                                 $plugin_options[$field['id']] = 0;
                        }

                        if(isset($field['type']) && $field['type'] == 'multi_text'){ continue; } // We can't validate this yet
                    
                        if(!isset($plugin_options[$field['id']]) || $plugin_options[$field['id']] == '') {
                            continue;
                        }

                        // Force validate of custom field types
                        if(isset($field['type']) && !isset($field['validate'])) {
                            if($field['type'] == 'color' || $field['type'] == 'color_gradient') {
                                $field['validate'] = 'color';
                            } elseif($field['type'] == 'date') {
                                $field['validate'] = 'date';
                            }
                        }

                        if(isset($field['validate'])) {
                            $validate = 'Vision_Validation_' . $field['validate'];

							if(!class_exists($validate)) {
								$class_file = apply_filters('vision-opts-validateclass-load', $this->dir . 'validation/' . $field['validate'] . '/validation_' . $field['validate'] . '.php', $validate);
								if($class_file)
									require_once($class_file);
                            }
            
                            if(class_exists($validate)) {
                                $validation = new $validate($field, $plugin_options[$field['id']], $options[$field['id']]);
                                $plugin_options[$field['id']] = $validation->value;
                                if(isset($validation->error)) {
                                    $this->errors[] = $validation->error;
                                }
                                if(isset($validation->warning)) {
                                    $this->warnings[] = $validation->warning;
                                }
                                continue;
                            }
                        }

                        if(isset($field['validate_callback']) && function_exists($field['validate_callback'])) {
                            $callbackvalues = call_user_func($field['validate_callback'], $field, $plugin_options[$field['id']], $options[$field['id']]);
                            $plugin_options[$field['id']] = $callbackvalues['value'];
                            if(isset($callbackvalues['error'])) {
                                $this->errors[] = $callbackvalues['error'];
                            }
                            if(isset($callbackvalues['warning'])) {
                                $this->warnings[] = $callbackvalues['warning'];
                            }
                        }
                    }
                }
            }
            return $plugin_options;
        }

        /**
         * HTML OUTPUT.
         *
         * @since Vision_Options 1.0.0
        */
        function _options_page_html() {
            echo '<div class="wrap">';
            echo '<div id="' . $this->args['page_icon'] . '" class="icon32"><br/></div>';
            echo '<h2 id="vision-opts-heading">' . get_admin_page_title() . '</h2>';
            echo (isset($this->args['intro_text'])) ? $this->args['intro_text'] : '';

            do_action('vision-opts-page-before-form-' . $this->args['opt_name']);

            echo '<form method="post" action="options.php" enctype="multipart/form-data" id="vision-opts-form-wrapper">';
            settings_fields($this->args['opt_name'] . '_group');

            $this->options['last_tab'] = (isset($_GET['tab']) && !get_transient('vision-opts-saved')) ? $_GET['tab'] : ((isset($this->options['last_tab']) && get_transient('vision-opts-saved')) ? $this->options['last_tab'] : $this->args['last_tab']);
            
            echo '<input type="hidden" id="last_tab" name="' . $this->args['opt_name'] . '[last_tab]" value="' . $this->options['last_tab'] . '" />';

            echo '<div id="vision-opts-header">';
            submit_button('', 'primary', '', false);
            echo ' &nbsp; ';
            submit_button(__('Reset to Defaults', Vision_TEXT_DOMAIN), 'secondary', $this->args['opt_name'] . '[defaults]', false);
            echo '<div class="clear"></div><!--clearfix-->';
            echo '</div>';

            if(isset($_GET['settings-updated']) && $_GET['settings-updated'] == 'true' && get_transient('vision-opts-saved') == '1') {
                if(isset($this->options['imported']) && $this->options['imported'] == 1) {
                    echo '<div id="vision-opts-imported">' . apply_filters('vision-opts-imported-text-' . $this->args['opt_name'], __('<strong>Settings Imported!</strong>', Vision_TEXT_DOMAIN)) . '</div>';
                } else {
                    echo '<div id="vision-opts-save">' . apply_filters('vision-opts-saved-text-' . $this->args['opt_name'], __('<strong>Settings Saved!</strong>', Vision_TEXT_DOMAIN)).'</div>';
                }
                delete_transient('vision-opts-saved');
            }

            echo '<div id="vision-opts-save-warn">' . apply_filters('vision-opts-changed-text-' . $this->args['opt_name'], __('<strong>Settings have changed, you should save them!</strong>', Vision_TEXT_DOMAIN)) . '</div>';
            echo '<div id="vision-opts-field-errors">' . __('<strong><span></span> error(s) were found!</strong>', Vision_TEXT_DOMAIN) . '</div>';
            echo '<div id="vision-opts-field-warnings">' . __('<strong><span></span> warning(s) were found!</strong>', Vision_TEXT_DOMAIN).'</div>';
                
            echo '<div class="clear"></div><!--clearfix-->';
                
            echo '<div id="vision-opts-sidebar">';
            echo '<ul id="vision-opts-group-menu">';
            foreach($this->sections as $k => $section) {
				if($this->args['icon_type'] == 'iconfont') {
					$icon = (!isset($section['icon'])) ? '' : '<img src="' . $section['icon'] . '" /> ';
				} else {
					$icon_class = (!isset($section['icon_class'])) ? '' : ' ' . $section['icon_class'];
					$icon = (!isset($section['icon'])) ? '<i class="icon-cog' . $icon_class . '"></i> ' : '<i class="icon-' . $section['icon'] . $icon_class . '"></i> ';
				}
                echo '<li id="' . $k . '_section_group_li" class="vision-opts-group-tab-link-li">';
                echo '<a href="javascript:void(0);" id="' . $k . '_section_group_li_a" class="vision-opts-group-tab-link-a" data-rel="' . $k . '">' . $icon . '<span>' . $section['title'] . '</span></a>';
                echo '</li>';
            }

            echo '<li class="divide">&nbsp;</li>';

            do_action('vision-opts-after-section-menu-items-' . $this->args['opt_name'], $this);

            if(true === $this->args['show_import_export']) {
				echo '<li id="import_export_default_section_group_li" class="vision-opts-group-tab-link-li">';
				if($this->args['icon_type'] == 'image') {
					$icon = (!isset($this->args['import_icon'])) ? '' : '<img src="' . $this->args['import_icon'] . '" /> ';
				} else {
					$icon_class = (!isset($this->args['import_icon_class'])) ? '' : ' ' . $this->args['import_icon_class'];
					$icon = (!isset($this->args['import_icon'])) ? '<i class="icon-refresh' . $icon_class . '"></i>' : '<i class="icon-' . $this->args['import_icon'] . $icon_class . '"></i> ';
				}
                echo '<a href="javascript:void(0);" id="import_export_default_section_group_li_a" class="vision-opts-group-tab-link-a" data-rel="import_export_default">' . $icon . ' <span>' . __('Import / Export', Vision_TEXT_DOMAIN) . '</span></a>';
                echo '</li>';

                echo '<li class="divide">&nbsp;</li>';
            }

            if(is_array($this->extra_tabs)) {
				foreach($this->extra_tabs as $k => $tab) {
					if($this->args['icon_type'] == 'image') {
						$icon = (!isset($tab['icon'])) ? '' : '<img src="' . $tab['icon'] . '" /> ';
					} else {
						$icon_class = (!isset($tab['icon_class'])) ? '' : ' ' . $tab['icon_class'];
    	                $icon = (!isset($tab['icon'])) ? '<i class="icon-cog' . $icon_class . '"></i> ' : '<i class="icon-' . $tab['icon'] . $icon_class . '"></i> ';
					}
                    echo '<li id="' . $k . '_section_group_li" class="vision-opts-group-tab-link-li">';
                    echo '<a href="javascript:void(0);" id="' . $k . '_section_group_li_a" class="vision-opts-group-tab-link-a custom-tab" data-rel="' . $k . '">' . $icon . '<span>' . $tab['title'] . '</span></a>';
                    echo '</li>';
                }
            }

            if(true === $this->args['dev_mode']) {
				echo '<li id="dev_mode_default_section_group_li" class="vision-opts-group-tab-link-li">';
				if($this->args['icon_type'] == 'image') {
					$icon = (!isset($this->args['dev_mode_icon'])) ? '' : '<img src="' . $this->args['dev_mode_icon'] . '" /> ';
				} else {
					$icon_class = (!isset($this->args['dev_mode_icon_class'])) ? '' : ' ' . $this->args['dev_mode_icon_class'];
					$icon = (!isset($this->args['dev_mode_icon'])) ? '<i class="icon-info-sign' . $icon_class . '"></i>' : '<i class="icon-' . $this->args['dev_mode_icon'] . $icon_class . '"></i> ';
				}
                echo '<a href="javascript:void(0);" id="dev_mode_default_section_group_li_a" class="vision-opts-group-tab-link-a custom-tab" data-rel="dev_mode_default">' . $icon . ' <span>' . __('Dev Mode Info', Vision_TEXT_DOMAIN) . '</span></a>';
                echo '</li>';
            }

            echo '</ul>';
            echo '</div>';
                
            echo '<div id="vision-opts-main">';

            foreach($this->sections as $k => $section) {
                echo '<div id="' . $k . '_section_group' . '" class="vision-opts-group-tab">';
                do_settings_sections($this->args['opt_name'] . $k . '_section_group');
                echo '</div>';
            }

            if(true === $this->args['show_import_export']) {
                echo '<div id="import_export_default_section_group' . '" class="vision-opts-group-tab">';

                echo '<h3>' . __('Import / Export Options', Vision_TEXT_DOMAIN) . '</h3>';
                echo '<h4>' . __('Import Options', Vision_TEXT_DOMAIN) . '</h4>';
               

                echo '<div id="vision-opts-import-code-wrapper">';

                echo '<div class="vision-opts-section-desc">';
                echo '<p class="description" id="import-code-description">' . apply_filters('vision-opts-import-file-description', __('Input your backup file below and hit Import to restore your sites options from a backup.', Vision_TEXT_DOMAIN)) . '</p>';
                echo '</div>';

                echo '<textarea id="import-code-value" name="' . $this->args['opt_name'] . '[import_code]" class="large-text" rows="8"></textarea>';

                echo '</div>';

                echo '<div id="vision-opts-import-link-wrapper">';

                echo '<div class="vision-opts-section-desc">';
                echo '<p class="description" id="import-link-description">' . apply_filters('vision-opts-import-link-description', __('Input the URL to another sites options set and hit Import to load the options from that site.', Vision_TEXT_DOMAIN)) . '</p>';
                echo '</div>';

                echo '<input type="text" id="import-link-value" name="' . $this->args['opt_name'] . '[import_link]" class="large-text" value="" />';

                echo '</div>';

                echo '<p id="vision-opts-import-action"><input type="submit" id="vision-opts-import" name="' . $this->args['opt_name'] . '[import]" class="button-primary" value="' . __('Import', Vision_TEXT_DOMAIN) . '"> <span>' . apply_filters('vision-opts-import-warning', __('WARNING! This will overwrite any existing options, please proceed with caution!', Vision_TEXT_DOMAIN)) . '</span></p>';
                echo '<div id="import_divide"></div>';

                echo '<h4>' . __('Export Options', Vision_TEXT_DOMAIN) . '</h4>';
                echo '<div class="vision-opts-section-desc">';
                echo '<p class="description">' . apply_filters('vision-opts-backup-description', __('Here you can copy/download your current option settings. Keep this safe as you can use it as a backup should anything go wrong, or you can use it to restore your settings on this site (or any other site).', Vision_TEXT_DOMAIN)).'</p>';
                echo '</div>';

                echo '<p><a href="javascript:void(0);" id="vision-opts-export-code-copy" class="button-secondary">' . __('Copy', Vision_TEXT_DOMAIN) . '</a> <a href="'.add_query_arg(array('feed' => 'visionopts-'.$this->args['opt_name'], 'action' => 'download_options', 'secret' => md5(AUTH_KEY.SECURE_AUTH_KEY)), site_url()).'" id="vision-opts-export-code-dl" class="button-primary">Download</a> <a href="javascript:void(0);" id="vision-opts-export-link" class="button-secondary">' . __('Copy Link', Vision_TEXT_DOMAIN) . '</a></p>';
                $backup_options = $this->options;
                $backup_options['vision-opts-backup'] = '1';
                $encoded_options = '###' . serialize($backup_options) . '###';
                echo '<textarea class="large-text" id="vision-opts-export-code" rows="8">';
                print_r($encoded_options);
                echo '</textarea>';
                echo '<input type="text" class="large-text" id="vision-opts-export-link-value" value="' . add_query_arg(array('feed' => 'visionopts-' . $this->args['opt_name'], 'secret' => md5(AUTH_KEY.SECURE_AUTH_KEY)), site_url()) . '" />';

                echo '</div>';
            }

            if(is_array($this->extra_tabs)) {
                foreach($this->extra_tabs as $k => $tab) {
                    echo '<div id="' . $k . '_section_group' . '" class="vision-opts-group-tab">';
                    echo '<h3>' . $tab['title'] . '</h3>';
                    echo $tab['content'];
                    echo '</div>';
                }
            }

            if(true === $this->args['dev_mode']) {
                echo '<div id="dev_mode_default_section_group' . '" class="vision-opts-group-tab">';
                echo '<h3>' . __('Dev Mode Info', Vision_TEXT_DOMAIN) . '</h3>';
                echo '<div class="vision-opts-section-desc">';
                echo '<textarea class="large-text" rows="24">' . print_r($this, true) . '</textarea>';
                echo '</div>';
                echo '</div>';
            }

            do_action('vision-opts-after-section-items-' . $this->args['opt_name'], $this);

            echo '<div class="clear"></div><!--clearfix-->';
            echo '</div>';
            echo '<div class="clear"></div><!--clearfix-->';

            echo '<div id="vision-opts-footer">';

            if(isset($this->args['share_icons'])) {
                echo '<div id="vision-opts-share">';
                foreach($this->args['share_icons'] as $link) {
                    echo '<a href="' . $link['link'] . '" title="' . $link['title'] . '" target="_blank"><img src="' . $link['img'] . '"/></a>';
                }
                echo '</div>';
            }

            submit_button('', 'primary', '', false);
            echo ' &nbsp; ';
            submit_button(__('Reset to Defaults', Vision_TEXT_DOMAIN), 'secondary', $this->args['opt_name'] . '[defaults]', false);
            echo '<div class="clear"></div><!--clearfix-->';
            echo '</div>';
    
            echo '</form>';
            echo (isset($this->args['footer_text'])) ? '<div id="vision-opts-sub-footer">' . $this->args['footer_text'] . '</div>' : '';

            do_action('vision-opts-page-after-form-' . $this->args['opt_name']);

            echo '<div class="clear"></div><!--clearfix-->';    
            echo '</div><!--wrap-->';
        }

        /**
         * JS to display the errors on the page
         *
         * @since Vision_Options 1.0.0
        */
        function _errors_js() {
            if(isset($_GET['settings-updated']) && $_GET['settings-updated'] == 'true' && get_transient('vision-opts-errors-' . $this->args['opt_name'])) {
                $errors = get_transient('vision-opts-errors-' . $this->args['opt_name']);
                $section_errors = array();
                foreach($errors as $error) {
                    $section_errors[$error['section_id']] = (isset($section_errors[$error['section_id']])) ? $section_errors[$error['section_id']] : 0;
                    $section_errors[$error['section_id']]++;
                }

                echo '<script type="text/javascript">';
                echo 'jQuery(document).ready(function(){';
                echo 'jQuery("#vision-opts-field-errors span").html("' . count($errors) . '");';
                echo 'jQuery("#vision-opts-field-errors").show();';

                foreach($section_errors as $sectionkey => $section_error) {
                    echo 'jQuery("#' . $sectionkey . '_section_group_li_a").append("<span class=\"vision-opts-menu-error\">' . $section_error . '</span>");';
                }

                foreach($errors as $error) {
                    echo 'jQuery("#' . $error['id'] . '").addClass("vision-opts-field-error");';
                    echo 'jQuery("#' . $error['id'] . '").closest("td").append("<span class=\"vision-opts-th-error\">' . $error['msg'] . '</span>");';
                }
                echo '});';
                echo '</script>';
                delete_transient('vision-opts-errors-' . $this->args['opt_name']);
            }
        }

        /**
         * JS to display the warnings on the page
         *
         * @since Vision_Options 1.0.0
        */    
        function _warnings_js() {
            if(isset($_GET['settings-updated']) && $_GET['settings-updated'] == 'true' && get_transient('vision-opts-warnings-' . $this->args['opt_name'])) {
                $warnings = get_transient('vision-opts-warnings-' . $this->args['opt_name']);
                $section_warnings = array();
                foreach($warnings as $warning) {
                    $section_warnings[$warning['section_id']] = (isset($section_warnings[$warning['section_id']])) ? $section_warnings[$warning['section_id']] : 0;
                    $section_warnings[$warning['section_id']]++;
                }

                echo '<script type="text/javascript">';
                echo 'jQuery(document).ready(function(){';
                echo 'jQuery("#vision-opts-field-warnings span").html("' . count($warnings) . '");';
                echo 'jQuery("#vision-opts-field-warnings").show();';

                foreach($section_warnings as $sectionkey => $section_warning) {
                    echo 'jQuery("#' . $sectionkey . '_section_group_li_a").append("<span class=\"vision-opts-menu-warning\">' . $section_warning . '</span>");';
                }

                foreach($warnings as $warning) {
                    echo 'jQuery("#' . $warning['id'] . '").addClass("vision-opts-field-warning");';
                    echo 'jQuery("#' . $warning['id'] . '").closest("td").append("<span class=\"vision-opts-th-warning\">' . $warning['msg'] . '</span>");';
                }
                echo '});';
                echo '</script>';
                delete_transient('vision-opts-warnings-' . $this->args['opt_name']);
            }
        }

        /**
         * Section HTML OUTPUT.
         *
         * @since Vision_Options 1.0.0
        */    
        function _section_desc($section) {
            $id = trim(rtrim($section['id'], '_section'), $this->args['opt_name']);

            if(isset($this->sections[$id]['desc']) && !empty($this->sections[$id]['desc'])) {
                echo '<div class="vision-opts-section-desc">' . $this->sections[$id]['desc'] . '</div>';
            }
        }

        /**
         * Field HTML OUTPUT.
         *
         * Gets option from options array, then calls the specific field type class - allows extending by other devs
         * @since Vision_Options 1.0.0
        */
        function _field_input($field) {
            if(isset($field['callback']) && function_exists($field['callback'])) {
                $value = (isset($this->options[$field['id']])) ? $this->options[$field['id']] : '';
                do_action('vision-opts-before-field-' . $this->args['opt_name'], $field, $value);
                call_user_func($field['callback'], $field, $value);
                do_action('vision-opts-after-field-' . $this->args['opt_name'], $field, $value);
                return;
            }

            if(isset($field['type'])) {
                $field_class = 'Vision_Options_'.$field['type'];

				if(!class_exists($field_class)) {
					$class_file = apply_filters('vision-opts-typeclass-load', $this->dir . 'fields/' . $field['type'] . '/field_' . $field['type'] . '.php', $field_class);
					if($class_file)
						require_once($class_file);
                }

				if(class_exists($field_class)) {
					$value = $this->get($field['id'], '');
                    do_action('vision-opts-before-field-' . $this->args['opt_name'], $field, $value);
                    $render = '';
                    $render = new $field_class($field, $value, $this);
                    $render->render();
                    do_action('vision-opts-after-field-' . $this->args['opt_name'], $field, $value);
                }
            }
		}
    }
}