* * All methods are chainable, with the exception of the constructor, * build_header(), build_footer(), and _headers() methods. */ class Page { private static $meta, $head_js, $foot_js, $css, $title, $head_tags, $body_id; /** * Current Controller Instance * * @var CI_Controller */ private $CI; /** * Constructor */ public function __construct() { $this->meta = ""; $this->head_js = ""; $this->foot_js = ""; $this->css = ""; $this->title = ""; $this->head_tags = ""; $this->body_id = ""; $this->CI =& get_instance(); } // -------------------------------------------------------------------------- /** * Sets server headers and doctype * * Also sets page mime type, based on if sent as * html or xhtml, and what the target browser * supports * * @return Page */ private function _headers() { $this->CI->output->set_header("Cache-Control: must-revalidate, public"); $this->CI->output->set_header("Vary: Accept"); //Predefine charset and mime $charset = "UTF-8"; $mime = "text/html"; $doctype_string = doctype('html5') . "\n"; // finally, output the mime type and prolog type $this->CI->output->set_header("Content-Type: $mime;charset=$charset"); $this->CI->output->set_header("X-UA-Compatible: chrome=1"); $this->CI->output->set_output($doctype_string); return $this; } // -------------------------------------------------------------------------- /** * Set Meta * * Sets meta tags, with codeigniter native meta tag helper * * @param array $meta * @return Page */ public function set_meta($meta) { $this->meta .= T1.meta($meta).NL; return $this; } // -------------------------------------------------------------------------- /** * Sets minified javascript group in header * @param string $group * @param bool $debug * @return Page */ public function set_head_js_group($group, $debug=FALSE) { $file = $this->CI->config->item('group_style_path') . $group; $file .= ($debug == TRUE) ? "/debug/1" : ""; $this->head_js .= $this->script_tag($file, FALSE); return $this; } // -------------------------------------------------------------------------- /** * Sets a minified css group * @param string $group * @return Page */ public function set_css_group($group) { $link = array( 'href' => $this->CI->config->item('group_style_path') . $group, 'rel' => 'stylesheet', 'type' => 'text/css', ); $this->css .= T1.link_tag($link).NL; return $this; } // -------------------------------------------------------------------------- /** * Sets a minified javascript group for the page footer * @param string $group * @return Page */ public function set_foot_js_group($group, $debug=FALSE) { $file = $this->CI->config->item('group_style_path') . $group; $file .= ($debug == TRUE) ? "/debug/1" : ""; $this->foot_js .= $this->script_tag($file, FALSE); return $this; } // -------------------------------------------------------------------------- /** * Sets html title string * @param string $title * @return Page */ public function set_title($title="") { $title = ($title == "") ? $this->CI->config->item('default_title') : $title; $this->title = $title; return $this; } // -------------------------------------------------------------------------- /** * Sets custom body id * @param string $id * @return Page */ public function set_body_id($page_id="") { $this->body_id = $page_id; return $this; } // -------------------------------------------------------------------------- /** * Sets custom page header * @return $this */ public function build_header() { $data = array(); //Set Meta Tags $this->meta = T1.''.NL. $this->meta; $data['meta'] = $this->meta; //Set CSS if ($this->css != "") { $data['css'] = $this->css; } else { //Set default CSS group $this->set_css_group($this->CI->config->item('default_css_group')); $data['css'] = $this->css; } //Set head javascript $data['head_js'] = ( ! empty($this->head_js)) ? $this->head_js : ""; //Set Page Title $data['title'] = ( ! empty($this->title)) ? $this->title : $this->CI->config->item('default_title'); //Set Body Id $data['body_id'] = $this->body_id; //Set Server Headers and Doctype $this->_headers(); //Output Header $this->CI->load->view('header', $data); return $this; } // -------------------------------------------------------------------------- /** * Shortcut method to cut down on boilerplate * * @param string $view * @param array|object $data * @return void */ public function build($view, $data = array()) { $this->build_header(); $this->CI->load->view($view, $data); $this->build_footer(); } // -------------------------------------------------------------------------- /** * Builds common footer with any additional js */ public function build_footer() { $data = array(); $data['foot_js'] = ($this->foot_js != "") ? $this->foot_js : ''; $this->CI->load->view('footer', $data); } // -------------------------------------------------------------------------- /** * Script Tag * * Helper function for making script tags * * @param string $javascript * @param bool $domain * @return string */ private function script_tag($javascript, $domain=TRUE) { $path = $this->CI->config->item('content_domain'); $js_file = $path . "/js/" . $javascript . ".js"; if ($domain == FALSE) $js_file = $javascript; $tag = ''.NL; return $tag; } // -------------------------------------------------------------------------- /** * Num Queries * * Returns number of queries run on a page * * @return int */ public function num_queries() { return (isset($this->CI->db)) ? count($this->CI->db->queries) : 0; } // -------------------------------------------------------------------------- /** * Set Message * * Adds a message to the page * @param string $type * @param string $message * @param bool $return * @return mixed */ public function set_message($type, $message, $return = FALSE) { $data = array(); $data['stat_type'] = $type; $data['message'] = $message; return $this->CI->load->view('message', $data, $return); } }