class_theme.php | searchcode

/pirozek-yaps/core/class_theme.php

http://pirozek-yaps.googlecode.com/
PHP | 514 lines | 272 code | 64 blank | 178 comment | 36 complexity | 118d13b4b80e52153f3724e794d6bc32 MD5 | raw file

<?php



/**

 * Theme class

 * Very simple template system and theme loading

 * @version $Id$

 * @copyright 2010

 */



class Theme

{

	public $themes = Array();

	public $themes_path = Array();

	public $theme_name = '';

	public $render = true;



	private $root_path = '';

	private $index = '';

	private $theme_info = '';

	private $index_backup = ''; //for Theme::purge() function

	private $head = ''; //<head> for including JS and CSS and other stuff

	private $assign_array = Array(); //variables for assigning in template

	private $jquery_included = false; //prevent multiple jquery inclusion



	/**

	 * Constructor

	 */

	function __construct($theme = '')

	{

		global $core;



		$this->load_themes();



		if(strlen($theme) > 0) //we want theme

		{

			if(in_array($theme,$this->themes)) //we know it

			{

				$this->set_theme($theme); //set it

			}

			else

			{

				$core->err('Sorry, unknown theme selected!');

			}

		}

		else //use default theme

		{

			$value = mysql_fetch_array(mysql_query("SELECT value FROM ".DB_PREFIX."yaps_config WHERE name = 'default_theme'"));

			$this->set_theme($value['value']);

		}

	}



	/**

	 * Theme::get_root_path()

	 * Geter for root_path

	 * @return

	 */

	public function get_root_path()

	{

		return $this->root_path;

	}



	/**

	 * Theme::get_content()

	 * Useful when developer dont want to echo theme, just get content

	 * @return

	 */

	public function get_content()

	{

		$out = $this->index;



		foreach ($this->assign_array as $name => $value)

		{

			$out = str_ireplace('{'.$name.'}',$value,$out);

		}



		return $out;

	}



	/**

	 * Theme::get_raw_content()

	 * Returns raw, unprocessed content of theme, with no assigns

	 * @return

	 */

	public function get_raw_content()

	{

		return $this->index;

	}



	/**

	 * Theme::set_defaults()

	 * Sets default values for template, if they haven`t been set before by plugin

	 * @return

	 */

	public function set_defaults()

	{

		global $core;



		if(method_exists($core->used_plugin,'rss'))

			$this->add_to_head('<link rel="alternate" type="application/rss+xml" title="{title}" href="rss.php" />');



		//default values

		if(!$this->assign_exists('logo'))	$this->assign('logo',PAGE_NAME);

		if(!$this->assign_exists('underlogo')) $this->assign('underlogo',PAGE_DESC);

		if(!$this->assign_exists('sidebar')) $this->assign('sidebar','');

		if(!$this->assign_exists('footer')) $this->assign('footer','Hi, I am footer:)');

		if(!$this->assign_exists('copyright')) $this->assign('copyright','Powered by Yaps!');

		if(!$this->assign_exists('head')) $this->assign('head', $this->head);

		if(!$this->assign_exists('title')) $this->assign('title',PAGE_NAME);



	}



	public function assign_exists($name)

	{

		return (strlen($this->assign_array[$name]) > 0) ? true : false;

	}



	/**

	 * Theme::generate_menu()

	 * As name suggests, this will generate menu from DB table

	 * @return

	 */

	public function generate_menu()

	{

		$query = mysql_query("SELECT * FROM ".DB_PREFIX."yaps_menu ORDER BY position DESC");

		$out = '<ul>';



		if(mysql_num_rows($query) > 0)

		{

			while($item = mysql_fetch_array($query))

			{

				$out .= '<li><a href="'.$item['link'].'">'.$item['name'].'</a></li>';

			}

		}

		else

		{

			$out .= '<li><a href=".">Home</a></li>';

		}



		$out .= '</ul>';



		$this->assign('menu',$out);

	}



	/**

	 * Theme::set_theme()

	 * This will set theme according to $theme

	 * @param mixed $theme

	 * @return

	 */

	public function set_theme($theme)

	{

		//set up paths

		$this->root_path = $this->themes_path[$theme]['path'];

		$this->index = file_get_contents($this->root_path.'index.html');

		$this->theme_info = $this->themes_path[$theme]['info'];

		$this->theme_name = $theme;



		//and set root_path

		$this->assign('root_path',WEB_URL.$this->root_path);



		//backup index

		$this->index_backup = $this->index;

	}



	/**

	 * Theme::set_theme_file()

	 * Set up theme as a specified file. Usable for blogpost, gallery etc

	 * @param mixed $path

	 * @param mixed $file

	 * @return

	 */

	public function set_theme_file($path = '',$file)

	{

		if(strlen($path) < 1) $path = $this->root_path; //default path to current plugin



		//set up paths

		$this->root_path = $path;

		$this->index = file_get_contents($this->root_path.$file);

		$this->theme_info = 'File: '.$file;



		//and set root_path

		$this->assign('root_path',WEB_URL.$this->root_path);



		//backup index

		$this->index_backup = $this->index;

	}



	/**

	 * Theme::purge()

	 * Purge theme content by loading new one from backup

	 * This file save file_get_contents usage (HD is sooo slow)

	 * @return

	 */

	public function purge()

	{

		$this->index = $this->index_backup;

	}



	/**

	 * Theme::render()

	 * Renders loaded theme

	 * @return

	 */

	public function render()

	{

		global $core;



		if(strlen($this->index) > 0)

		{

			foreach ($this->assign_array as $name => $value)

			{

				$this->index = str_ireplace('{'.$name.'}',$value,$this->index);

			}



			echo $this->index;

		}

		else

		{

			$core->err('You have no theme selected or this theme has corrupted index.html');

		}

	}



	/**

	 * Theme::assign()

	 * Replace template tag {$name} with $value

	 * @param mixed $name

	 * @param mixed $value

	 * @param mixed $append is set to zero, if it is true, than assign will append to assign array instead of replacing the value

	 * @return

	 */

	public function assign($name,$value,$append = 0)

	{

		//$this->index = str_ireplace('{'.$name.'}',$value,$this->index);

		if(!$append)

		{

			$this->assign_array[$name] = $value;

		}

		else

		{

			$this->assign_array[$name] .= $value;

		}

	}



	/**

	 * Theme::load_themes()

	 * Load all themes that we have in themes directory

	 * @return

	 */

	private function load_themes()

	{

		if($handle = opendir(THEMES_DIR)) //lets try to open the themes dir

		{

			while(false !== ($file = readdir($handle)))

			{

				if($file != '.' && $file != '..' && $file != '.svn') //we don`t want this

				{

					$this->themes[] = strtolower($file);

				}

			}



			closedir($handle); //close dir handler



			//loop through themes and read their info

			for($i = 0;$i < sizeof($this->themes);$i++)

			{

				$path = THEMES_DIR.$this->themes[$i].'/';

				$index = $path.'index.html';

				$theme_info = $path.FILE_THEME_INFO;



				//add all paths to array, we will use em later

				$this->themes_path[$this->themes[$i]] = Array(

					'path' => $path,

					'index' => $index,

					'info' => $theme_info);

			}

		}

		else

		{

			$this->err('Can`t open themes directory. Chmod maybe?');

		}

	}



	/**

	 * Theme::add_to_head()

	 * Useful for including javascript libraries and other stuff

	 * @param mixed $what

	 * @return

	 */

	public function add_to_head($what)

	{

		$this->head .= $what;

	}



	/**

	 * Theme::include_jquery()

	 * Include popular javascript framework

	 * @param mixed $css

	 * @return

	 */

	public function include_jquery($css = true)

	{

		if(!$this->jquery_included)

		{

			$this->add_to_head('<script type="text/javascript" src="'.JS_DIR.'jquery-1.4.2.min.js"></script>

			<script type="text/javascript" src="'.JS_DIR.'jquery-ui-1.8.2.custom.min.js"></script>');



			if($css)

			{

				$this->add_to_head('<link type="text/css" href="'.JS_DIR.'ui-lightness/jquery-ui-1.8.2.custom.css" rel="stylesheet" />');

			}



			$this->jquery_included = true;

		}

	}



	/**

	 * Theme::js()

	 * Shortcut for adding javascript

	 * @param mixed $text

	 * @return

	 */

	public function js($text,$jquery_wrapper = true)

	{

		//see if we can add jquery onLoad wrapper

		if($jquery_wrapper)

		{

			$text = '$(function(){'.$text.'});';

		}



		$this->add_to_head('<script type="text/javascript">'.$text.'</script>

		');

	}



	/**

	 * Theme::css()

	 * Shortcut for adding infile css

	 * @param mixed $text

	 * @return

	 */

	public function css($text)

	{

		$this->add_to_head('<style>'.$text.'</style>');

	}



	/**

	 * Theme::include_css()

	 * Shortcut for including CSS from external file

	 * @param mixed $path

	 * @return

	 */

	public function include_css($path)

	{

		$this->add_to_head('<link href="'.$path.'" rel="stylesheet" type="text/css" media="screen" />');

	}



	/**

	 * Theme::include_js()

	 * Shortcut for including JS from external file

	 * @param mixed $path

	 * @return

	 */

	public function include_js($path)

	{

		$this->add_to_head('<script type="text/javascript" src="'.$path.'"></script>');

	}



	/**

	 * Theme::include_validation()

	 * Include validation plugin for jQuery

	 * @return

	 */

	public function include_validation()

	{

		$this->include_jquery();

		$this->add_to_head('<script type="text/javascript" src="'.JS_DIR.'jquery.validate.pack.js"></script>');

	}



	/**

	 * Theme::include_tooltip()

	 * Include tooltip plugin for jQuery

	 * @return

	 */

	public function include_tooltip()

	{

		$this->include_jquery();

		$this->add_to_head('<script type="text/javascript" src="'.JS_DIR.'jquery.tipsy.js"></script>');

		$this->include_css(JS_DIR.'tipsy.css');



		$this->js('$("img[title]").not(".buttons img").tipsy({fade: true});

								$("a[title]").tipsy({fade: true});');

	}



	/**

	 * Theme::icon()

	 * Shortcut for icon from template

	 * @param mixed $name

	 * @param string $alt

	 * @param bool $return

	 * @return

	 */

	public function icon($name,$alt = '',$return = false)

	{

		if($return) return '<img src="images/icons/'.$name.'" alt="'.$alt.'" title="'.$alt.'" class="yaps_icon"/>';

		else echo '<img src="images/icons/',$name,'" alt="',$alt,'" title="',$alt,'" class="yaps_icon"/>';

	}





	/**

	 * Theme::set_title()

	 * Shortcut for webpage title

	 * @param mixed $title

	 * @return

	 */

	public function set_title($title)

	{

		$this->assign('title',PAGE_NAME.' - '.$title);

	}



	/**

	 * Theme::do_other_plugins_stuff()

	 * Do other plugins things, like display twitter plugin, etc.

	 * @return

	 */

	public function do_other_plugins_stuff()

	{

		global $core;



		include $this->theme_info;



		if($twitter == true && $core->is_plugin('twitter')) //does this theme supports twitter?

		{

			$plugin = $core->load_plugin('twitter');

			$plugin->display_tweets();

		}



		if($core->is_plugin('sidebar')) //do we have sidebar plugin?

		{

			$plugin = $core->load_plugin('sidebar');

			$plugin->generate_sidebar();

		}

	}



	/**

	 * Theme::get_theme_list()

	 * Just for better reading of code

	 * @return

	 */

	public function get_theme_list()

	{

		return $this->themes;

	}



	public function link($text,$plugin,$action = '',$id = '',$seo_stuff = '')

	{

		global $core;



		if($action) $rest_of_it .= '-'.$action;

		if($id) $rest_of_it .= '-'.$id;

		if($seo_stuff) $rest_of_it .= '-'.$core->encode_url($seo_stuff);



		return '<a href="'.WEB_URL.$plugin.$rest_of_it.'" id="'.$plugin.'_'.$action.'">'.$text.'</a>';

	}



	/**

	 * Theme::button()

	 * Create nice button :)

	 * @param mixed $text Text on button

	 * @param mixed $link

	 * @param string $image Standard Yaps! icon

	 * @param string $class What class should we add to link?

	 * @param mixed $return Should we return(true) or echo(false). Defaul is echo

	 * @return

	 */

	public function button($text,$link,$image = '',$class = '', $return = false)

	{

		$link_string = '<a href="'.$link.'" class="buttons '.$class.'">'.(($image) ? $this->icon($image,$text,true) : '').$text.'</a>';



		if($return) return $link_string;

		echo $link_string;

	}



	/**

	 * Theme::back_button()

	 * Go back in history with no JS

	 * @param string $text

	 * @return

	 */

	public function back_button($text = 'ZpÄ&#x203A;t')

	{

		global $core;

		echo '<br />';

		$this->button($text,$core->load_last_page(),'arrow_left.png');

	}



	/**

	 * Theme::yesno()

	 * Create simple yes/no dialog

	 * @param mixed $answer Text of answer

	 * @param mixed $yes_link Where to redirect if YES

	 * @param mixed $no_link Where to redirect if NO

	 * @param string $yes_text Yes button text

	 * @param string $no_msg No button text

	 * @return

	 */

	public function yesno($answer,$yes_link,$no_link,$yes_text = 'Yes',$no_text = 'No')

	{

		echo '<div><div class="yesno_answer">',$answer,'</div>';

		$this->button($yes_text,$yes_link,'accept.png','positive');

		$this->button($no_text,$no_link,'cross.png','negative');

		echo '</div>';

	}

}



?>