forked from k-samuel/dvelum
/
Page.php
152 lines (138 loc) · 3.49 KB
/
Page.php
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<?php
/*
* DVelum project http://code.google.com/p/dvelum/ , http://dvelum.net
* Copyright (C) 2011-2012 Kirill A Egorov
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* The class is used for collecting the properties of
* the page being displayed. The “Singleton” pattern
* being implemented, it may be called just once from
* anywhere within the application.
*
*/
class Page
{
protected static $_instance;
/**
* @var Externals_Expert
*/
protected $_externalsExpert = false;
public $title = '';
public $html_title = '';
public $code = 'index';
public $id = 0;
public $meta_description = '';
public $meta_keywords = '';
public $theme = 'default';
protected $_ogData = array(
'image' => '' ,
'title' => '' ,
'description' => '' ,
'url' => ''
);
protected function __construct()
{
}
protected function __clone()
{
}
/**
* Get Object Instance (Singleton)
* @return Page
*/
static public function getInstance()
{
if(!isset(self::$_instance))
self::$_instance = new self();
return self::$_instance;
}
/**
* Define Open Graph property
* @param string $key
* @param string $value
*/
public function setOgProperty($key , $value)
{
$this->_ogData[$key] = $value;
}
/**
* Define Externals expert adapter
* @param Externals_Expert $expert
*/
public function setExternalsExpert(Externals_Expert $expert)
{
$this->_externalsExpert = $expert;
}
/**
* Generate meta tags with Open Graph metadata
* @return string
*/
public function getOgMeta()
{
$s = '';
foreach($this->_ogData as $key => $value)
if(strlen($value))
$s .= '<meta property="og:' . $key . '" content="' . $value . '"/>';
return $s;
}
/**
* Set templates directory
* @param string $path
*/
public function setTemplatesPath($path)
{
$this->_templatesPath = $path;
}
/**
* Get path to the folder with current theme templates
* @return string
*/
public function getThemePath()
{
/*
* Check for external themes
*/
if($this->_externalsExpert)
{
$themes = $this->_externalsExpert->getThemes();
if(isset($themes[$this->theme]))
return $themes[$this->theme];
}
return $this->_templatesPath . $this->theme . '/';
}
/**
* Get template path
* The template is to searched for in the theme folder.
* Otherwise, the system will attempt to load it from the template root folder
* @param string $template - filename
* @return string
*/
public function getTemplatePath($template)
{
/*
* Check for external templates
*/
if($this->_externalsExpert)
{
$templates = $this->_externalsExpert->getTemplates();
if(isset($templates[$template]))
return $templates[$template];
}
if(file_exists($this->getThemePath() . $template))
return $this->getThemePath() . $template;
return $this->_templatesPath . $template;
}
}