{

/**

* Variables below MUST be overriden by plugin implementations,

* either in the subclass declaration or in the subclass constructor.

*/

var $name = 'Twitter Card';

/**

* Code, if this is a renderer or pingback plugin.

*/

var $code = 'eo_twitter_card';

var $priority = 49;

var $version = '0.1';

var $author = 'Emin Özlem';

var $author_url = 'http://eminozlem.com';

var $help_url = 'http://forums.b2evolution.net/twitter-card-plugin';

var $apply_rendering = 'never';

var $number_of_installs = 1;

/**

* Init

*

* This gets called after a plugin has been registered/instantiated.

*/

function PluginInit( & $params )

{

$this->short_desc = $this->T_('Integrate Twitter cards');

$this->long_desc = $this->T_('Twitter card integration for your blog');

}

/**

* Define here default collection/blog settings that are to be made available in the backoffice.

*

* @param array Associative array of parameters.

* @return array See {@link Plugin::get_coll_setting_definitions()}.

*/

function get_coll_setting_definitions( & $params )

{

$domain = preg_replace('/^www\./','',$_SERVER['HTTP_HOST']);

// global $Blog;

return array_merge( parent::get_coll_setting_definitions( $params ),

array(

'card_type' => array(

'label' => T_('Card Type'),

'note' => T_('The card type'),

'type' => 'select',

'options' => array(

'summary' => T_('Summary Card'),

'summary_large_image' => T_('Summary Card with Large Image'),

// array( 'app', T_('App Card') ),

// array( 'player', T_('Player Card') ),

),

'defaultvalue' => 'summary_large_image',

),

'site_id' => array(

'label' => T_( 'Site ID' ),

'size' => 25,

'note' => T_( 'REQUIRED. @username of website.' ),

'defaultvalue' => $domain,

// . $Blog->siteurl,

),

)

);

}

function eo_get_featured_image_url($size=NULL) {

global $Item;

// Get list of attached files

$feat_img_uri = false;

$params = array(

'before' => '',

'before_image' => '',

'before_image_legend' => '',

'after_image_legend' => '',

'after_image' => '',

'after' => '',

'limit' => 1,

'image_link_to' => 'original',

'before_gallery' => '',

'after_gallery' => '',

// Optionally restrict to files/images linked to specific position: 'teaser'|'aftermore'

'restrict_to_image_position' => 'teaser',

);

if(isset($size)) $params['image_size'] = $size;

$post_images = $Item->get_images( $params,'raw' );

if( ! empty ($post_images) ) {

preg_match('/(src)=("[^"]*")/',$post_images, $img_parts);

$feat_img_uri = str_replace(array('src="','"','&'),array('','','&'),$img_parts[0]);

}

return $feat_img_uri;

/*if( $app_version < 5 ) {

if( ! $FileList = $Item->get_attachment_FileList(1, 'teaser') )

{

return '';

}

$r = '';

$File = NULL;

while( $File = & $FileList->get_next() )

{

if( $File->is_image() ) {

$feat_img_uri = $File->_FileRoot->ads_url . $File->_rdfp_rel_path;

// var_dump($feat_img_uri);

}

}

}*/

}

function SkinBeginHtmlHead( & $params )

{

global $Item,$Chapter,$Blog,$baseurl;

$tw_img = false;

$blogdesc = $Blog->longdesc;

if( isset($Item) && ! empty($Item) ) {

$id = $Item->ID;

// $og_uri = $baseurl .'index.php?p='.$id.'&amp;blog='.$Blog->ID.'&amp;redir=no';

$tw_desc = $Item->excerpt;

$tw_title = $Item->title;

$tw_img = $this->eo_get_featured_image_url();

}

else if ( isset($Chapter) && ! empty($Chapter) ) {

//if we are on category

$tw_desc = $Chapter->description;

$tw_title = $Chapter->name;

}

else {

// Just in case, for everything else.

$tw_desc = $blogdesc;

$tw_title = $Blog->name;

}

$card_type = ( $tw_img ) ? $this->get_coll_setting( 'card_type', $Blog ) : 'summary';

add_headline('<meta name="twitter:card" content="'.$card_type.'">');

add_headline('<meta name="twitter:site" content="'.$this->get_coll_setting( 'site_id', $Blog ).'">');

add_headline('<meta name="twitter:title" content="'.format_to_output($tw_title,'htmlattr').'">');

add_headline('<meta name="twitter:description" content="'.format_to_output($tw_desc,'htmlattr').'">');

if( $tw_img ) add_headline('<meta name="twitter:image" content="'.$tw_img.'">');

}

/**

* Event handler: SkinTag (widget)

*

* @param array Associative array of parameters.

* @return boolean did we display?

*

*/

// function SkinTag( $params ) {}