<?php
/**
* Facebook library
* This class provide method to work with Facebook SDK / plugins and Opengraph
* PHP version 5.3
*
* @author JOOservices Ltd Company
* @copyright Copyright (c) 2011 - 2012 JOOservices Ltd Company. All rights reserved.
* @license GNU/GPL license: http://www.gnu.org/copyleft/gpl.html
*/
?>
<?php
/**
* @role Always check class exists before create it
*/
if ( !class_exists ( 'JxFacebook' ) ) {
/**
* Facebook base object
*/
class JxFacebookObject {
protected $opengraph = array ( ) ; /* used in <head><meta> */
protected $attributes = array ( ) ; /* use for Facebook plugins */
protected $app_id = '129458053806961' ;
protected $admins = '100002155587121' ;
protected $url = '' ;
/**
* Construct method
* @param string $url
*/
public function __construct ( $url = '' ) {
$this->url = $url ;
}
/**
* Method to get singleton instance of this class
* @staticvar JxFacebook $instance
* @param string $url
* @return \JxFacebook
*/
public static function getInstance ( $url = '' ) {
static $instance ;
if ( !isset ( $instance ) )
$instance = new JxFacebook ( $url ) ;
return $instance ;
}
/**
* Method to set opengraph
* @link https://developers.facebook.com/docs/opengraph/
* @param string $name
* @param string $value
*/
public function setOpenGraph ( $name , $value , $prefix = 'og' ) {
$this->opengraph[$prefix . ':' . $name][] = $value ;
}
/**
* Reset datas of an opengraph
* @param string $name
* @param string $prefix
*/
public function cleanOpenGraph ( $name , $prefix = 'og' ) {
$this->opengraph[$prefix . ':' . $name] = array ( ) ;
}
/**
* Method to get opengraph
* @param string $name
* @param string $def
* @return array
*/
public function getOpenGraph ( $name , $def = '' , $prefix = 'og' ) {
if ( isset ( $this->opengraph[$prefix . ':' . $name] ) ) {
return $this->opengraph[$prefix . ':' . $name] ;
}else
return $def ;
}
/**
* Method to set attribute use for plugin
* @param string $name
* @param string $value
*/
public function setAttribute ( $name , $value ) {
$this->attributes[$name] = $value ;
}
/**
* Method to get attribute use for plugin
* @param string $name
* @param string $def
* @return string
*/
public function getAttribute ( $name , $def = '' ) {
if ( isset ( $this->attributes[$name] ) ) {
return $this->attributes[$name] ;
}else
return $def ;
}
/**
* Method to set facebook appid
* @param string $id
*/
public function setAppId ( $id ) {
$this->app_id = $id ;
}
/**
* Method to get facebook appid
*/
public function getAppId ( $def = '129458053806961' ) {
if ( isset ( $this->app_id ) )
return $this->app_id ;
else
return $def ;
}
/**
* Method to set facebook admins id
* @param string $id
*/
public function setAdmins ( $id ) {
$this->admins = $id ;
}
/**
* Method to get facebook admins id
* @param string $def
* @return string
*/
public function getAdmins ( $def = '100002155587121' ) {
if ( isset ( $this->admins ) )
return $this->admins ;
else
return $def ;
}
/**
* Method to set url use for attribute & opengraph
* @param string $url
*/
public function setUrl ( $url ) {
$this->url = $url ;
$this->setAttribute ( 'href' , $url ) ;
$this->setOpenGraph ( 'og:url' , $url ) ;
}
/**
* Method to get current using url
* @return string
*/
public function getUrl () {
return $this->url ;
}
}
/**
* Facebook class
* @package
* @subpackage
* @uses
*
* @tutorial
*/
class JxFacebook extends JxFacebookObject {
/**
* Construct method
* @todo Need use with pure PHP instead Zend
*/
public function __construct ( $url = '' ) {
parent::__construct ( $url ) ;
}
/**
* Method to get instance of
* @staticvar self $instance
* @return \self
*/
public static function getInstance ( $url = '' ) {
static $instance ;
if ( !isset ( $instance ) ) {
$instance = new self ( $url ) ;
}
return $instance ;
}
/**
* Get Facebook SDK class
* @param string $appId
* @param string $secret
* @return \Facebook
*/
public function getSdk ( $appId , $secret ) {
require_once 'sdk/facebook.php' ;
return new Facebook ( array ( 'appId' => $appId , 'secret' => $secret , ) ) ;
}
/**
* Method to get facebook scripts
* @return string
*/
public function getScript ( $langTag = 'en_US' ) {
$script = '<div id="fb-root"></div>
<script>
(function(d, s, id) {
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) return;
js = d.createElement(s); js.id = id;
js.src = "//connect.facebook.net/' . $langTag . '/all.js#xfbml=1&appId=' . $this->getAppId () . '";
fjs.parentNode.insertBefore(js, fjs);
}(document, \'script\', \'facebook-jssdk\'));
</script>' ;
return $script ;
}
/**
* @link https://developers.facebook.com/docs/reference/javascript/FB.init/
* @param string $langTag
* @return string
*/
public function loadScript ( $langTag = 'en_US' ) {
static $loaded = false ;
if ( $loaded == false ) {
$script = '
<div id="fb-root"></div>
<script>
if (typeof window.FB === "undefined") {
window.fbAsyncInit = function() {
FB.init({
});
// Additional initialization code here
};
// Load the SDK Asynchronously
(function(d){
var js, id = \'facebook-jssdk\', ref = d . getElementsByTagName(\'script\')[0];
if (d . getElementById(id)) {
return;
}
js = d . createElement(\'script\');
js.id = id;
js.async = true;
js.src = "//connect.facebook.net/' . $langTag . '/all.js#xfbml=1&appId=' . $this->getAppId () . '";
ref . parentNode . insertBefore(js, ref);
}(document));
}
</script>' ;
$loaded = true ;
} else {
$script = '' ;
}
return $script ;
}
/**
* Method to get facebook attributes for <html> tag
* @return string
*/
public function getHtml () {
$type = $this->getOpenGraph ( 'type' , array ( 'website' ) ) ;
$html = 'xmlns:fb = "http://ogp.me/ns/fb#"' ;
$html .='prefix = "og: http://ogp.me/ns# fb: http://ogp.me/ns/fb# ' . $type[0] . ': http://ogp.me/ns/' . $type[0] . '# "' ;
return $html ;
}
/**
* Method to get head <meta> tag
* @return string
*/
public function getHead () {
$head = "\n" ;
foreach ( $this->opengraph as $key => $opengraph ) {
$prev = '' ;
foreach ( $opengraph as $value ) {
if ( $value != '' && $value != $prev ) {
$head .= '<meta property = "' . $key . '" content = "' . $value . '" />' . "\n" ;
$prev = $value ;
}
}
}
$head .= '<meta property = "fb:admins" content = "' . $this->getAdmins () . '" />' . "\n" ;
$head .= '<meta property = "fb:app_id" content = "' . $this->getAppId () . '" />' . "\n" ;
return $head ;
}
/**
* Method to get plugin html
* @param string $name
* @return string
*/
public function getPlugin ( $name ) {
$class = 'jooxfb-' . $name . ' fb-' . $name ;
$html = '<div class = "' . $class . '"' ;
foreach ( $this->attributes as $key => $value ) {
$html .= 'data-' . $key . ' = "' . $value . '"' ;
}
$html .= '></div>' ;
return $html ;
}
/**
* @link https://developers.facebook.com/docs/reference/dialogs/
* @param type $dialog
* @param type $obj
* @param type $type
* @return string
*/
public function getDialog ( $dialog = 'feed' , $obj = array ( ) , $type = 'url' ) {
$fbDialog = 'https://www.facebook.com/dialog/' . $dialog . '?' ;
$defObject = array (
'redirect_uri' => $this->url . '&fb_redirected' ,
'display' => ($type == 'url') ? 'page' : 'popup' , /* https://developers.facebook.com/docs/reference/dialogs/#display */
'from' => '' ,
'to' => '' ,
'link' => $this->url ,
'picture' => '' ,
'source' => '' ,
'name' => '' ,
'caption' => '' ,
'description' => '' ,
'properties' => '' ,
'actions' => '' ,
'ref' => ''
) ;
$obj = array_merge ( $obj , $defObject ) ;
switch ( $type ) {
case 'url' :
if ( $type == 'url' ) {
$url = 'app_id=' . $this->getAppId () ;
foreach ( $obj as $key => $value ) {
if ( $value != '' ) {
$url .= '&' . $key . '=' . urlencode ( $value ) ;
}
}
return $fbDialog . $url ;
}
case 'json' :
return json_encode ( $obj ) ;
case 'script' :
/* return javascript object use for FB.ui */
$script = '
var jxFacebookUi = {}
' ;
break ;
}
}
/**
*
* @param array $data
*/
public function setProperties ( $data ) {
if ( is_array ( $data ) ) {
foreach ( $data as $name => $value ) {
$this->setAttribute ( $name , $value ) ;
}
}
}
/**
* Method to set og:type
* @param string $content
*/
public function setType ( $data ) {
$this->setOpenGraph ( 'type' , $data ) ;
}
/**
* Method to set og:title
* @param string $data
*/
public function setTitle ( $data ) {
$this->setOpenGraph ( 'title' , $data ) ;
}
/**
* Method to set og:description
* @param string $data
*/
public function setDescription ( $data ) {
$this->setOpenGraph ( 'description' , $data ) ;
}
/**
* Method to quick set OpenGraph siteName
* @param string $content
*/
public function setSiteName ( $content ) {
$this->setOpenGraph ( 'site_name' , $content ) ;
}
/**
* Shortcut method to set Opengraphs for article type
* @link https://developers.facebook.com/docs/opengraph/objects/builtin/
* @param string $title
* @param string $description
* @param string $image
* @param string $siteName
* @param string $article
* @return string
*/
public function getArticle ( $title , $description , $image , $siteName , $article = array ( ) ) {
$this->setType ( 'article' ) ;
$this->setTitle ( $title ) ;
$this->setDescription ( $description ) ;
$this->setSiteName ( $siteName ) ;
$this->setOpenGraph ( 'image' , $image ) ;
foreach ( $article as $key => $value ) {
$this->setOpenGraph ( $key , $value , 'article:' ) ;
}
return $this->getHead () ;
}
/**
* Shortcut method to set Opengraphs for blog type
* @link https://developers.facebook.com/docs/opengraph/objects/builtin/
* @param string $title
* @param string $description
* @param mixed $image
* @param string $url
* @return string complete <head>
*/
public function getBlog ( $title , $description , $image ) {
$this->setType ( 'blog' ) ;
$this->setTitle ( $title ) ;
$this->setDescription ( $description ) ;
$this->setOpenGraph ( 'image' , $image ) ;
return $this->getHead () ;
}
/**
* Shortcut method to set Opengraphs for website type
* @link https://developers.facebook.com/docs/opengraph/objects/builtin/
* @param string $title
* @param string $description
* @param mixed $image
* @param string $url
* @return string complete <head>
*/
public function getWebsite ( $title , $description , $image ) {
$this->setType ( 'website' ) ;
$this->setTitle ( $title ) ;
$this->setDescription ( $description ) ;
$this->setOpenGraph ( 'image' , $image ) ;
return $this->getHead () ;
}
}
}
?>
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