/phy/classes/template/_class.php

<?php



	namespace PHY;



	/**

	 * @package Template

	 * @category Frontend

	 * @author John Mullanaphy

	 */

	final class Template {



		private $generated = false,

		$css = array(

			'added' => array(),

			'core' => array(),

			'modules' => array(),

			'print' => array()

			),

		$js = array(

			'added' => array(),

			'core' => array(),

			'modules' => array(),

			'footer' => array()

			),

		$keywords = array(

			'added' => array(),

			'invalid' => array('panda')

			),

		$meta = array(),

		$rss = array(

			'core' => array(),

			'added' => array()

			),

		$scripts = array(),

		$sections = array(),

		$show = array(

			'footer' => true,

			'header' => true,

			'theme' => true,

			'title' => true

			),

		$tag = NULL,

		$title = '';



		/**

		 * You can only initiate one Template object.

		 *

		 * Will call $this->init(); on initiation.

		 */

		public function __construct() {



			# Meta data.

			$this->meta = array(

				'header_content_type' => array(

					'http-equiv' => 'content-type',

					'content' => 'text/html;charset=utf-8'

				),

				'name_cache_control' => array(

					'name' => 'cache-control',

					'content' => 'public'

				),

				'name_expires' => array(

					'name' => 'expires',

					'content' => date('Y-m-d@H:i:s T',strtotime('1 week'))

				),

				'name_last_modified' => array(

					'name' => 'last-modified',

					'content' => date('Y-m-d@H:i:s T')

				),

				'name_description' => array(

					'name' => 'description',

					'content' => \PHY\Registry::get('config/site/description')

				),

				'name_keywords' => array(

					'name' => 'keywords',

					'content' => \PHY\Registry::get('config/site/keywords')

				),

				'name_author' => array(

					'name' => 'author',

					'content' => \PHY\Registry::get('config/site/name')

				),

				'name_contact' => array(

					'name' => 'contact',

					'content' => \PHY\Registry::get('config/site/email')

				),

				'name_robots' => array(

					'name' => 'robots',

					'content' => 'noodp'

				),

				'name_blogcatalog' => array(

					'name' => 'blogcatalog',

					'content' => '9BC9576594'

				),

				'og:site_name' => array(

					'property' => 'og:site_name',

					'content' => \PHY\Registry::get('config/site/name')

				)

			);



			# HTML Version to use.

			$this->tag = \PHY\Markup::instance();

/*			switch(true):

				case (Headers::ie6()):

					$this->tag = \PHY\Markup::instance('HTML4');

					break;

				case (Headers::bot()):

					$this->tag = \PHY\Markup::instance('HTML4');

					break;

				case (Headers::mobile()):

					$this->meta[] = array(

						'name' => 'viewport',

						'content' => 'user-scalable=no,width=device-width,minimum-scale=1.0,maximum-scale=1.0'

					);

				default:

			endswitch; */



			$this->js['core'] = \PHY\Registry::get('config/files/js');

			$this->css['core'] = \PHY\Registry::get('config/files/css');



			echo $this->tag->DOCTYPE,

			$this->tag->OPENER;



			flush();

			if(ob_list_handlers()) ob_flush();

		}



		/**

		 * Will call $this->generate(); on object destruction.

		 */

		public function __destruct() {

			if(!$this->generated) $this->generate();

		}



		/**

		 * returns all the content.

		 *

		 * @return string

		 */

		public function __toString() {

			return $this->head().$this->body().$this->tag->CLOSER;

		}



		/**

		 * Echos out all generated HTML.

		 */

		public function generate() {

			$this->generated = true;

			echo $this->head();

			flush();

			if(ob_list_handlers()) ob_flush();

			echo $this->body().$this->tag->CLOSER;

		}



		/**

		 * Append content into the current Section/Column

		 *

		 * @param mixed $content

		 * @param array $attributes

		 * @return bool

		 */

		public function append($content=false,$attributes=NULL) {

			if($content === false) return false;

			if(is_numeric($attributes)) $attributes = array('style' => 'width:'.(($attributes >= 1)

						?(int)$attributes.'px'

						:(int)($attributes * 100).'%'));

			else $attributes = $this->_attributes($attributes);

			if(!count($this->sections)) $this->section('normal');

			elseif(!count($this->sections[count($this->sections) - 1]['columns'])) $this->column();

			$this->sections[count($this->sections) - 1]['columns'][count($this->sections[count($this->sections) - 1]['columns']) - 1]['content'][] = array(

				'attributes' => $attributes,

				'content' => $content

			);

			return true;

		}



		/**

		 * Start a new column.

		 *

		 * If you send an array of attributes, 'width' => '' will be appended to

		 * style in the same way that sending just a decimal or integer would.

		 *

		 * @param int|float|array $attributes

		 */

		public function column($attributes=NULL) {

			if(is_numeric($attributes)) $attributes = array('style' => 'width:'.(($attributes >= 1)

						?(int)$attributes.'px'

						:(int)($attributes * 100).'%'));

			else $attributes = $this->_attributes($attributes);

			if(isset($attributes['width'])):

				if(isset($attributes['style'])) $attributes['style'] .= 'width:'.(($attributes['width'] >= 1)

							?(int)$attributes['width'].'px'

							:(int)($attributes['width'] * 100).'%').';';

				else $attributes['style'] = 'width:'.(($attributes['width'] >= 1)

							?(int)$attributes['width'].'px'

							:(int)($attributes['width'] * 100).'%').';';

				unset($attributes['width']);

			endif;

			if(!count($this->sections)) $this->section('normal');

			$this->sections[count($this->sections) - 1]['columns'][] = array(

				'attributes' => $attributes,

				'containers' => array()

			);

		}



		/**

		 * Create a heading section.

		 *

		 * @param mixed $content

		 * @param string $tag Type of container tag to use.

		 * @param array $attributes

		 * @return bool

		 */

		public function heading($content=NULL,$tag='h2',$attributes=NULL) {

			if($content === NULL) return false;

			if(is_array($tag)):

				$attributes = $tag;

				$tag = 'h2';

			elseif(!preg_match('#h[0-6]#i',$tag)):

				$tag = 'h2';

			endif;

			if(!is_array($attributes)) $attributes = array();

			if(isset($attributes['class'])) $attributes['class'] = 'heading '.$attributes['class'];

			else $attributes['class'] = 'heading';

			if(!count($this->sections)) $this->section('normal');

			elseif(!count($this->sections[count($this->sections) - 1]['columns'])) $this->column();

			$this->sections[count($this->sections) - 1]['heading'] = $this->tag->$tag($content,$attributes);

			return true;

		}



		/**

		 * Prepend content into the current Section/Column

		 *

		 * @param mixed $content

		 * @param array $attributes

		 * @return bool

		 */

		public function prepend($content=false,$attributes=NULL) {

			if($content === false) return false;

			if(is_numeric($attributes)) $attributes = array('style' => 'width:'.(($attributes >= 1)

						?(int)$attributes.'px'

						:(int)($attributes * 100).'%'));

			else $attributes = $this->_attributes($attributes);

			array_unshift(

				$this->sections[count($this->sections) - 1]['columns'][count($this->sections[count($this->sections) - 1]['columns']) - 1]['content'],array(

				'attributes' => $attributes,

				'content' => $content

				)

			);

			return true;

		}



		/**

		 * Add javascript to be run on its own.

		 *

		 * @param type $content

		 * @param type $attributes

		 * @return array If no content is sent it returns back current scripts.

		 */

		public function script($content=NULL,$attributes=NULL) {

			if($content === NULL) return $this->scripts;



			# Make sure a type is set.

			if(!is_array($attributes)) $attributes = array('type' => 'text/javascript');

			elseif(!isset($attributes['type'])) $attributes['type'] = 'text/javascript';



			# Store it.

			$this->scripts[] = $this->tag->script($content,$attributes);

		}



		/**

		 * Start a new section on our page.

		 *

		 * IF $attributes is a bool then $expand = $attributes.

		 *

		 * @param type $type Class name of our section.

		 * @param array $attributes Attributes for the section or a bool.

		 * @param bool $expand If the section should expand the whole viewport.

		 */

		public function section($type='normal',$attributes=NULL,$expand=NULL) {

			if(is_bool($attributes)):

				$expanded = !!$attributes;

				$attributes = $this->_attributes($expand);

			else:

				$expanded = false;

				$attributes = $this->_attributes($attributes);

			endif;

			if(isset($attributes['class'])) $attributes['class'] = $type.' '.$attributes['class'];

			else $attributes['class'] = $type;

			$this->sections[] = array(

				'attributes' => $attributes,

				'columns' => array(),

				'expanded' => $expanded,

				'heading' => NULL

			);

		}



		/**

		 * Set|Get CSS.

		 *

		 * If no parameters are set then this method will return all current

		 * CSS files that have been set.

		 *

		 * @param string,... $css

		 * @return mixed

		 */

		public function css($css=NULL) {

			if($css === NULL) return array_merge($this->css['added'],$this->css['modules']);

			foreach(func_get_args() as $css):

				if(is_array($css)):

					foreach($css as $file):

						if(preg_match('#print\.css|print/#',$file)) $this->css['print'][] = $file;

						else $this->css['added'][] = $file;

					endforeach;

				else:

					if(preg_match('#print\.css|print/#',$css)) $this->css['print'][] = $css;

					else $this->css['added'][] = $css;

				endif;

			endforeach;

			$this->css['added'] = array_unique($this->css['added']);

			$this->css['print'] = array_unique($this->css['print']);

			return true;

		}



		/**

		 * Set|Get meta description.

		 *

		 * If called without a parameter then this will return the currently set

		 * meta description.

		 *

		 * @param string $description

		 * @return mixed

		 */

		public function description($description=NULL) {

			if($description === NULL) return $this->meta['name_description']['content'];

			$this->meta['name_description']['content'] = $description;

		}



		/**

		 * Set|Get CSS and JS files.

		 *

		 * If no parameters are set then this method will return all current

		 * files that have been set (CSS and JS).

		 *

		 * @param string,... $file

		 * @return mixed

		 */

		public function files($files=NULL) {

			if($files === NULL) return array_merge($this->css['added'],$this->css['modules'],$this->js['added'],$this->js['modules']);

			foreach(func_get_args() as $files):

				if(is_array($files)):

					foreach($files as $file):

						if(substr($file,-4) === '.css') $this->css['modules'][] = $file;

						elseif(substr($file,-3) === '.js') $this->js['modules'][] = $file;

					endforeach;

				else:

					if(substr($files,-4) === '.css') $this->css['modules'][] = $files;

					elseif(substr($files,-3) === '.js') $this->js['modules'][] = $files;

				endif;

			endforeach;

			$this->css['modules'] = array_unique($this->css['modules']);

			$this->js['modules'] = array_unique($this->js['modules']);

			return true;

		}



		/**

		 * Turn options off.

		 *

		 * Can hide:

		 * 	'title'

		 * 	'footer'

		 * 	'header'

		 * 	'theme'

		 *

		 * If no parameters are set then it will return currently hidden.

		 *

		 * @param $hide,... Option to hide.

		 * @return mixed

		 */

		public function hide() {

			if(!count(func_get_args())):

				$hidden = array();

				foreach($this->show as $option => $show) if(!$show) $hidden[] = $option;

				return $hidden;

			endif;

			foreach(func_get_args() as $hide) if(isset($this->show[$hide])) $this->show[$hide] = false;

		}



		/**

		 * Set|Get JS.

		 *

		 * If no parameters are set then this method will return all current

		 * JS files that have been set.

		 *

		 * @param string,... $js

		 * @return mixed

		 */

		public function js($js=NULL) {

			if($js === NULL) return array_merge($this->js['added'],$this->js['modules']);

			foreach(func_get_args() as $js):

				if(is_array($js)) foreach($js as $file) $this->js['added'][] = $file;

				else $this->js['added'][] = $js;

			endforeach;

			$this->js['added'] = array_unique($this->js['added']);

			return true;

		}



		/**

		 * Set|Get meta keywords.

		 *

		 * If called without a parameter then this will return the currently set

		 * meta keyword.

		 *

		 * @param string,... $keyword

		 * @return mixed

		 */

		public function keywords() {

			if(!count(func_get_args())) return $this->meta['name_keywords']['content'];

			$this->meta['name_keywords']['content'] = join(', ',func_get_args());

		}



		/**

		 * Set|Get a meta tag.

		 *

		 * If called without a parameter then this will return the currently set

		 * meta tags.

		 *

		 * @param array $attributes Attributes of the new meta tag.

		 * @return mixed

		 */

		public function meta(array $attributes=NULL) {

			if($attributes === NULL) return $this->meta;

			if($attributes) $this->meta[] = $meta;

		}



		/**

		 * Set|Get RSS.

		 *

		 * If no parameters are set then this method will return all current

		 * RSS files that have been set.

		 *

		 * @param string,... $rss

		 * @return mixed

		 */

		public function rss($rss=NULL) {

			if($rss === NULL) return $this->rss['added'];

			foreach(func_get_args() as $rss):

				if(is_array($rss)) foreach($rss as $file) $this->rss['added'][] = $file;

				else $this->rss['added'][] = $rss;

			endforeach;

			$this->rss['added'] = array_unique($this->rss['added']);

		}



		/**

		 * Turn options off.

		 *

		 * Can show:

		 * 	'title'

		 * 	'footer'

		 * 	'header'

		 * 	'theme'

		 *

		 * If no parameters are set then it will return currently shown.

		 *

		 * @param $show,... Option to show.

		 * @return mixed

		 */

		public function show() {

			if(!count(func_get_args())):

				$shown = array();

				foreach($this->show as $option => $show) if($show) $shown[] = $option;

				return $shown;

			endif;

			foreach(func_get_args() as $show) if(isset($this->show[$show])) $this->show[$show] = false;

		}



		/**

		 * Set|Get meta title.

		 *

		 * If called without a parameter then this will return the currently set

		 * meta title.

		 *

		 * @param string $title

		 * @return mixed

		 */

		public function title($title=false) {

			if($title) $this->title = $title;

			return $this->title;

		}



		/**

		 * Append a template source.

		 *

		 * @param string $source

		 * @param bool $return If true it will return Markup instead of appending it.

		 * @return string|Markup_Abstract

		 */

		public function template($source=NULL,$return=false) {

			if(!is_string($source) || !$source):

				\PHY\Debug::error('No source was set to append.');

				return false;

			else:

				$file = false;

				foreach(array(ROOT_PATH.'/phy/templates/'.\PHY\Registry::theme().'/'.$source,ROOT_PATH.'/phy/templates/default/'.$source,BASE_PATH.'phy/templates/'.\PHY\Registry::theme().'/'.$source,BASE_PATH.'phy/templates/default/'.$source) as $check):

					if(is_file($check)):

						$file = $check;

						break;

					endif;

				endforeach;

				if(!$file):

					\PHY\Debug::error('Source "'.$source.'" could not be found.');

					return false;

				endif;

			endif;

			ob_start();

			include $file;

			$content = ob_get_contents();

			ob_end_clean();

			if($return) return $content;

			else $this->append($content);

		}



		/**

		 * Return a Markup object containing all of our body content.

		 *

		 * @return Markup_Abstract

		 */

		protected function body() {

			$body = $this->tag->body;



			# Process the header.

			if($this->show['header']) $body->append($this->header());



			# Process the actual page.

			$i = false;

			foreach($this->sections as $group):

				if(!$i):

					$i = true;

					if(isset($group['attributes']['class'])) $group['attributes']['class'] = 'first '.$group['attributes']['class'];

					else $group['attributes']['class'] = 'first';

				endif;

				if(isset($group['attributes']['class'])) $group['attributes']['class'] = 'section '.$group['attributes']['class'];

				else $group['attributes']['class'] = 'section';

				$section = $this->tag->div;

				$section->attributes($group['attributes']);

				$holder = $this->tag->div;

				if(!$group['expanded']) $holder->attributes(array('class' => 'holder'));

				foreach($group['columns'] as $col):

					$column = $this->tag->div;

					if(isset($col['attributes']['class'])) $col['attributes']['class'] = 'column '.$col['attributes']['class'];

					else $col['attributes']['class'] = 'column';

					$column->attributes($col['attributes']);

					if(isset($col['content']) && is_array($col['content'])) foreach($col['content'] as $container) $column->append($container);

					$holder->append($column);

				endforeach;

				$section->append($holder);

				if($group['heading'] !== NULL) $section->prepend($group['heading']);

				$body->append($section);

			endforeach;



			# Process the footer.

			if($this->show['footer']) $body->append($this->footer());

			if(!\PHY\Registry::get('config/site/production')):

				foreach($this->js['footer'] as $js) $body->append(

						$this->tag->script(

							NULL,array(

							'src' => (substr($js,0,4) === 'http'

								?$js

								:'/js/'.$js),

							'type' => 'text/javascript'

							)

						)

					);

			else:

				if(!in_array(USER_BROWSER,$this->browsers['bots'] + $this->browsers['text'])):

					$footer = array();

					foreach($this->js['footer'] as $js):

						if(substr($js,0,7) === 'http://' || substr($js,0,8) === 'https://') $body->append(

								$this->tag->script(

									NULL,array(

									'src' => $js,

									'type' => 'text/javascript'

									)

								)

							);

						elseif(is_file(BASE_PATH.'js/'.$js)) $footer[] = $js;

					endforeach;

					if(!is_file(BASE_PATH.'js/cached/footer.'.md5(join('',$footer)).'.js')):

						$files_content = NULL;

						foreach($footer as $js):

							$FILE = fopen(BASE_PATH.'js/'.$js,'r');

							$files_content .= '/* '.$js.' */'."\n".fread($FILE,filesize(BASE_PATH.'js/'.$js))."\n";

							fclose($FILE);

						endforeach;

						if(strlen($files_content) > 0):

							$FILE = fopen(BASE_PATH.'js/cached/footer.'.md5(join('',$footer)).'.js','w');

							fwrite($FILE,MinifyJS::minify($files_content));

							fclose($FILE);

						endif;

					endif;

					$body->append(

						$this->tag->script(

							NULL,array(

							'src' => '/scripts/cached/footer.'.md5(join('',$this->js['footer'])).'.js',

							'type' => 'text/javascript'

							)

						)

					);

				endif;

				$body->append(

					$this->tag->script(

						'var gaJsHost=((\'https:\'==document.location.protocol)?\'https://ssl.\':\'http://www.\');document.write(unescape("%3Cscript src=\'"+gaJsHost+"google-analytics.com/ga.js\' type=\'text/javascript\'%3E%3C/script%3E"));',array('type' => 'text/javascript')

					)

				);

				$body->append(

					$this->tag->script(

						'try{var pageTracker=_gat._getTracker(\'UA-2763315-2\');pageTracker._trackPageview();}catch(e){}',array('type' => 'text/javascript')

					)

				);

			endif;

			$body->append(

				$this->tag->script(

					'try{if(console)console.log(\'Generation: '.Debug::timer().'; Elements: '.\PHY\Markup::elements().'; Server: '.$_SERVER['SERVER_ADDR'].'\');}catch(e){};',array('type' => 'text/javascript')

				)

			);

			return $body;

		}



		/**

		 * Internal function for generating all the files and merging if we are

		 * on a production server.

		 *

		 * @access private

		 * @internal

		 * @return mixed

		 */

		private function _files() {

			$files = array();



			# Devo and Beta servers. We will not combine files on these servers.

			if(in_array(USER_BROWSER,array('ie','ie6')) || !\PHY\Registry::get('config/site/production')):

				foreach(array_merge($this->css['core'],$this->css['added'],$this->css['modules']) as $css) $files[] = $this->tag->link(

							array(

								'href' => $css,

								'rel' => 'stylesheet',

								'type' => 'text/css'

							)

					);



				# Theme.

				/* Goes here */



				# Print CSS.

				if($this->css['print']) foreach($this->css['print'] as $css) $files[] = $this->tag->link(

								array(

									'href' => $css,

									'media' => 'print',

									'rel' => 'stylesheet',

									'type' => 'text/css'

								)

						);



				foreach(array_merge($this->js['core'],$this->js['added'],$this->js['modules']) as $js) $files[] = $this->tag->script(

							NULL,array(

							'src' => (substr($js,0,4) === 'http'

								?$js

								:'/js/'.$js),

							'type' => 'text/javascript'

							)

					);



			# Live servers, we combine the files to make less requests per page.

			elseif(!Headers::bot()):

				# Core CSS.

				if(!is_file(ROOT_PATH.'/css/cached/core.'.md5(join('',$this->css['core'])).'.css')):

					$files_content = NULL;

					foreach($this->css['core'] as $css):

						if(substr($css,0,7) === 'http://' || substr($css,0,8) === 'https://'):

							$files[] = $this->tag->link(

									array(

										'href' => $css,

										'rel' => 'stylesheet',

										'type' => 'text/css'

									)

							);

						elseif(is_file(ROOT_PATH.$css)):

							$FILE = fopen(ROOT_PATH.$css,'r');

							$files_content .= '/* '.$css.' */'."\n".fread($FILE,filesize(ROOT_PATH.$css))."\n";

							fclose($FILE);

						endif;

					endforeach;

					if(strlen($files_content) > 0):

						$FILE = fopen(ROOT_PATH.'/css/cached/core.'.md5(join('',$this->css['core'])).'.css','w');

						fwrite($FILE,MinifyCSS::minify($files_content));

						fclose($FILE);

					endif;

				endif;

				$files[] = $this->tag->link(

						array(

							'href' => '/css/cached/core.'.md5(join('',$this->css['core'])).'.css',

							'rel' => 'stylesheet',

							'type' => 'text/css'

						)

				);

				# Added CSS.

				if(count($this->css['added'])):

					if(!is_file(ROOT_PATH.'/css/cached/hash.'.md5(join('',$this->css['added'])).'.css')):

						$files_content = NULL;

						foreach($this->css['added'] as $css):

							if(substr($css,0,7) === 'http://' || substr($css,0,8) === 'https://'):

								$files[] = $this->tag->link(

										array(

											'href' => $css,

											'rel' => 'stylesheet',

											'type' => 'text/css'

										)

								);

							elseif(is_file(ROOT_PATH.$css)):

								$FILE = fopen(ROOT_PATH.$css,'r');

								$files_content .= '/* '.$css.' */'."\n".fread($FILE,filesize(ROOT_PATH.$css))."\n";

								fclose($FILE);

							endif;

						endforeach;

						if(strlen($files_content) > 0):

							$FILE = fopen(ROOT_PATH.'/css/cached/hash.'.md5(join('',$this->css['added'])).'.css','w');

							fwrite($FILE,MinifyCSS::minify($files_content));

							fclose($FILE);

						endif;

					endif;

					$files[] = $this->tag->link(

							array(

								'href' => '/css/cached/hash.'.md5(join('',$this->css['added'])).'.css',

								'rel' => 'stylesheet',

								'type' => 'text/css'

							)

					);

				endif;



				# Modular CSS.

				if(count($this->css['modules'])):

					if(!is_file(ROOT_PATH.'/css/cached/modules.'.md5(join('',$this->css['modules'])).'.css')):

						$files_content = NULL;

						foreach($this->css['modules'] as $css):

							if(substr($css,0,7) === 'http://' || substr($css,0,8) === 'https://'):

								$files[] = $this->tag->link(

										array(

											'href' => $css,

											'rel' => 'stylesheet',

											'type' => 'text/css'

										)

								);

							elseif(is_file(ROOT_PATH.$css)):

								$FILE = fopen(ROOT_PATH.$css,'r');

								$files_content .= '/* '.$css.' */'."\n".fread($FILE,filesize(ROOT_PATH.$css))."\n";

								fclose($FILE);

							endif;

						endforeach;

						if(strlen($files_content) > 0):

							$FILE = fopen(ROOT_PATH.'/css/cached/modules.'.md5(join('',$this->css['modules'])).'.css','w');

							fwrite($FILE,MinifyCSS::minify($files_content));

							fclose($FILE);

						endif;

					else:

						foreach($this->css['modules'] as $css) if(substr($css,0,7) === 'http://' || substr($css,0,8) === 'https://') $files[] = $this->tag->link(

										array(

											'href' => $css,

											'rel' => 'stylesheet',

											'type' => 'text/css'

										)

								);

					endif;

					$files[] = $this->tag->link(

							array(

								'href' => '/css/cached/modules.'.md5(join('',$this->css['modules'])).'.css',

								'rel' => 'stylesheet',

								'type' => 'text/css'

							)

					);

				endif;



				# Theme CSS.

				/* */



				# Print CSS.

				if($this->css['print']) foreach($this->css['print'] as $css) $files[] = $this->tag->link(

								array(

									'href' => $css,

									'media' => 'print',

									'rel' => 'stylesheet',

									'type' => 'text/css'

								)

						);



				# Core JS.

				if(!is_file(ROOT_PATH.'/js/cached/core.'.md5(join('',$this->js['core'])).'.js')):

					$files_content = NULL;

					foreach($this->js['core'] as $js):

						if(substr($js,0,7) === 'http://' || substr($js,0,8) === 'https://'):

							$files[] = $this->tag->script(

									NULL,array(

									'src' => $js,

									'type' => 'text/javascript'

									)

							);

						elseif(is_file(ROOT_PATH.$js)):

							$FILE = fopen(ROOT_PATH.$js,'r');

							$files_content .= '/* '.$js.' */'."\n".fread($FILE,filesize(ROOT_PATH.$js))."\n";

							fclose($FILE);

						endif;

					endforeach;

					if(strlen($files_content) > 0):

						$FILE = fopen(ROOT_PATH.'/js/cached/core.'.md5(join('',$this->js['core'])).'.js','w');

						fwrite($FILE,MinifyJS::minify($files_content));

						fclose($FILE);

					endif;

				else:

					foreach($this->js['core'] as $js) if(substr($js,0,7) === 'http://' || substr($js,0,8) === 'https://') $files[] = $this->tag->script(

									NULL,array(

									'src' => $js,

									'type' => 'text/javascript'

									)

							);

				endif;

				$files[] = $this->tag->script(

						NULL,array(

						'src' => '/js/cached/core.'.md5(join('',$this->js['core'])).'.js',

						'type' => 'text/javascript'

						)

				);



				# Added JS.

				if(count($this->js['added'])):

					if(!is_file(ROOT_PATH.'/js/cached/hash.'.md5(join('',$this->js['added'])).'.js')):

						$files_content = NULL;

						foreach($this->js['added'] as $js):

							if(substr($js,0,7) === 'http://' || substr($js,0,8) === 'https://'):

								$files[] = $this->tag->script(

										NULL,array(

										'src' => $js,

										'type' => 'text/javascript'

										)

								);

							elseif(is_file(ROOT_PATH.$js)):

								$FILE = fopen(ROOT_PATH.$js,'r');

								$files_content .= '/* '.$js.' */'."\n".fread($FILE,filesize(ROOT_PATH.$js))."\n";

								fclose($FILE);

							endif;

						endforeach;

						if(strlen($files_content) > 0):

							$FILE = fopen(ROOT_PATH.'/js/cached/hash.'.md5(join('',$this->js['added'])).'.js','w');

							fwrite($FILE,MinifyJS::minify($files_content));

							fclose($FILE);

						endif;

					else:

						foreach($this->js['added'] as $js) if(substr($js,0,7) === 'http://' || substr($js,0,8) === 'https://') $files[] = $this->tag->script(

										NULL,array(

										'src' => $js,

										'type' => 'text/javascript'

										)

								);

					endif;

					$files[] = $this->tag->script(

							NULL,array(

							'src' => '/js/cached/hash.'.md5(join('',$this->js['added'])).'.js',

							'type' => 'text/javascript'

							)

					);

					if(Headers::ie6()):

						$files[] = $this->tag->script(

								NULL,array(

								'/js/pngfix.js',

								'type' => 'text/javascript'

								)

						);

					endif;

				endif;



				# Modular JS.

				if(count($this->js['modules'])):

					if(!is_file(ROOT_PATH.'/js/cached/modules.'.md5(join('',$this->js['modules'])).'.js')):

						$files_content = NULL;

						foreach($this->js['modules'] as $js):

							if(substr($js,0,7) === 'http://' || substr($js,0,8) === 'https://'):

								$files[] = $this->tag->script(

										NULL,array(

										'src' => $js,

										'type' => 'text/javascript'

										)

								);

							elseif(is_file(ROOT_PATH.$js)):

								$FILE = fopen(ROOT_PATH.$js,'r');

								$files_content .= '/* '.$js.' */'."\n".fread($FILE,filesize(ROOT_PATH.$js))."\n";

								fclose($FILE);

							endif;

						endforeach;

						if(strlen($files_content) > 0):

							$FILE = fopen(ROOT_PATH.'/js/cached/modules.'.md5(join('',$this->js['modules'])).'.js','w');

							fwrite($FILE,MinifyJS::minify($files_content));

							fclose($FILE);

						endif;

					else:

						foreach($this->js['modules'] as $js) if(substr($js,0,7) === 'http://' || substr($js,0,8) === 'https://') $files[] = $this->tag->script(

										NULL,array(

										'src' => $js,

										'type' => 'text/javascript'

										)

								);

					endif;

					$files[] = $this->tag->script(

							NULL,array(

							'src' => '/js/cached/modules.'.md5(join('',$this->js['modules'])).'.js',

							'type' => 'text/javascript'

							)

					);

				endif;



				# RSS.

				if(count($this->rss['core'] + $this->rss['added'])):

					foreach($this->rss['core'] + $this->rss['added'] as $title => $url):

						$files[] = $this->tag->link(

								array(

									'href' => $url,

									'rel' => 'alternate',

									'title' => $title,

									'type' => 'application/rss+xml'

								)

						);

					endforeach;

				endif;

			else:

				$files = NULL;

			endif;



			return $files;

		}



		/**

		 * Generate and return the HEAD tag of our Page.

		 *

		 * @return Markup_Abstract

		 */

		public function head() {

			$head = $this->tag->head;



			# Page title.

			$head->append(

				$this->tag->title(

					(

					$this->show['title']

						?\PHY\Registry::get('config/site/name').

						(

						$this->title

							?' - '

							:NULL

						)

						:NULL

					).

					$this->title

				)

			);



			# Shebang handler. Urls that might have been index via Google as #!/page

			if(isset($_GET['_escaped_fragment_'])) $head->append(

					$this->tag->noscript(

						$this->tag->meta(

							array(

								'http-equiv' => 'refresh',

								'content' => '0; URL='.$_GET['_escaped_fragment_']

							)

						)

					)

				);



			# Add meta tags.

			$meta = $this->_meta();

			$this->meta['name_keywords']['content'] = join(', ',Registry::get('config/site/keywords')).($meta

					?', '.$meta

					:NULL).', '.join(', ',$this->meta['name_keywords']['content']);

			foreach($this->meta as $meta):

				$tag = $this->tag->meta;

				$tag->attributes($meta);

				$head->append($tag);

			endforeach;

			$head->append($this->_files());

			$this->script(

				'if(window.location.hash.toString().match(\'!\')){var url=window.location.hash.toString().split(\'!\');window.location=url[1];}'.

				'if(typeof $===\'undefined\')var $={};$.user={xsrf:\''.Cookie::get('xsrf_id').'\'};'

			);

			foreach($this->scripts as $script) $head->append($script);



			return $head;

		}



		/**

		 * Generate and return the FOOTER tag of our Page.

		 *

		 * @return Markup_Abstract

		 */

		public function footer() {

			$content = $this->template('footer.phtml',true);

/*			if(!$content):

				$content = $this->tag->footer;

				$content->attributes(array('id' => 'footer'));



				$content->append('<!-- Footer was not defined -->');

			endif; */

			return $content;

		}



		/**

		 * Generate the HEADER section of our BODY section.

		 *

		 * @return string|Markup_Abstract

		 */

		public function header() {

			$content = $this->template('header.phtml',true);

/*			if(!$content):

				$content = $this->tag->header;

				$content->attributes(array('id' => 'header'));



				$content->append('<!-- Header was not defined -->');

			endif; */

			return $content;

		}



		/**

		 * Internal cleaner for attributes.

		 *

		 * If you send just a string then it will be set as the class

		 * If you send a string with a : then it will set key:value.

		 *

		 * @param mixed $attributes

		 * @internal

		 * @return mixed

		 */

		private function _attributes($attributes=NULL) {

			if($attributes === NULL) return;

			if(is_string($attributes)):

				$split = explode(':',$attributes);

				if(isset($split[1])) $attributes[$split[0]] = $split[1];

				else $attributes = array('class' => $attributes);

			endif;

			return $attributes;

		}



		/**

		 * Check our Markup heap for important tags. Return them if they exist.

		 *

		 * @param type $limit

		 * @return type

		 */

		private function _extract($limit=15) {

			if(\PHY\Markup::elements() > 20 && \PHY\Markup::important()):

				$rows = array();

				foreach(Markup::important() as $row) $rows[] = $row->content;

				\PHY\Markup::important()->rewind();

				$rows = array_unique($rows);

				$parsed = array();

				foreach($rows as $row) foreach(explode('{}',str_replace(array('&',',','.',':',';','?','!','- ',"'",'"'),'{}',$row)) as $item) if(strlen(trim($item)) > 2) $parsed[] = trim($item);

				return array_slice($parsed,0,$limit);

			else:

				return array();

			endif;

		}



		/**

		 * Attempt to grab relevant meta tags on page generation. We use this if

		 * meta details weren't set.

		 *

		 * @return string

		 */

		private function _meta() {

			$this->keywords['added'] = $this->_extract(15);

			$keywords = array();

			foreach($this->keywords['added'] as $words):

				if(!$words) continue;

				$words = explode(' ',$words);

				$word = NULL;

				for($i = 0; $i < 3; ++$i):

					if(isset($words[$i]) && strlen($words[$i]) > 3):

						$word = trim($words[$i]);

						$validated = strtolower(preg_replace('#[^abcdefghijklmnopqrstuvwxyz ]#i','',$word));

						if(strlen($validated) > 5 && !in_array(strtolower($validated),$this->keywords['invalid'])):

							if(isset($keywords[$validated])) ++$keywords[$validated];

							else $keywords[$validated] = 1;

						endif;

					endif;

				endfor;

			endforeach;

			arsort($keywords);

			$return = array();

			foreach($keywords as $word => $count) if($count > 1) $return[] = $word;

			return ((count($return))

				?join(', ',$return).', '

				:NULL);

		}



	}