setup_hooks();
}
/**
* Get the current theme version
*
* @return string The version number
*/
private function get_theme_version() {
// if version was not set, get it from the Theme stylesheet
if ( $this->product->get_version() === '' ) {
$theme = wp_get_theme( $this->product->get_slug() );
return $theme->get( 'Version' );
}
return $this->product->get_version();
}
/**
* Setup hooks
*/
private function setup_hooks() {
add_filter( 'site_transient_update_themes', array( $this, 'set_theme_update_transient' ) );
add_action( 'load-themes.php', array( $this, 'load_themes_screen' ) );
}
/**
* Set "updates available" transient
*/
public function set_theme_update_transient( $value ) {
$update_data = $this->get_update_data();
if ( $update_data === false ) {
return $value;
}
// add update data to "updates available" array. convert object to array.
$value->response[ $this->product->get_slug() ] = (array) $update_data;
return $value;
}
/**
* Add hooks and scripts to the Appearance > Themes screen
*/
public function load_themes_screen() {
$update_data = $this->get_update_data();
// only do if an update is available
if ( $update_data === false ) {
return;
}
add_thickbox();
add_action( 'admin_notices', array( $this, 'show_update_details' ) );
}
/**
* Show update link.
* Opens Thickbox with Changelog.
*/
public function show_update_details() {
$update_data = $this->get_update_data();
// only show if an update is available
if ( $update_data === false ) {
return;
}
$update_url = wp_nonce_url( 'update.php?action=upgrade-theme&theme=' . urlencode( $this->product->get_slug() ), 'upgrade-theme_' . $this->product->get_slug() );
$update_onclick = ' onclick="if ( confirm(\'' . esc_js( __( "Updating this theme will lose any customizations you have made. 'Cancel' to stop, 'OK' to update." ) ) . '\') ) {return true;}return false;"';
?>
%1$s version %2$s is available. %3$sCheck out what\'s new%4$s or %5$supdate now%4$s.' ),
$this->product->get_item_name(),
$update_data->new_version,
'',
'',
''
);
?>
sections['changelog'] ); ?>
get_remote_data();
if ( false === $api_response ) {
return false;
}
$update_data = $api_response;
// check if a new version is available.
if ( version_compare( $this->get_theme_version(), $update_data->new_version, '>=' ) ) {
return false;
}
// an update is available
return $update_data;
}
}
}