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<?php |
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/** If this file is called directly, abort. */ |
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if ( ! defined( 'GRAVITYVIEW_DIR' ) ) { |
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die(); |
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} |
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/** |
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* Add a Powered By link below Views. |
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* |
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* @since 2.5.3 |
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* |
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*/ |
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class GravityView_Powered_By { |
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const url = 'https://gravityview.co/powered-by/'; |
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/** |
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* GravityView_Powered_By constructor. |
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*/ |
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public function __construct() { |
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add_action( 'gravityview/template/after', array( $this, 'maybe_add_link' ) ); |
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} |
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/** |
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* Prints a HTML link to GravityView's site if "Powered By" GravityView setting is enabled |
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* |
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* @return void |
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*/ |
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public function maybe_add_link() { |
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$powered_by = gravityview()->plugin->settings->get( 'powered_by', '0' ); |
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if( empty( $powered_by ) ) { |
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return; |
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} |
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$url = $this->get_url(); |
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// Allow disabling link via URL filter |
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if ( empty( $url ) ) { |
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return; |
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} |
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/** |
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* @filter `gravityview/powered_by/text` Modify the anchor text for the Powered By link |
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* @param string $anchor_text Anchor text for the Powered By link. Default: "Powered by GravityView". Will be sanitized before display. |
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*/ |
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$anchor_text = apply_filters( 'gravityview/powered_by/text', __( 'Powered by GravityView', 'gravityview' ) ); |
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printf( '<span class="gv-powered-by"><a href="%s">%s</a></span>', esc_url( $url ), esc_html( $anchor_text ) ); |
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} |
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/** |
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* Returns the URL to GravityView |
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* |
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* @return string URL to GravityView (not sanitized) |
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*/ |
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protected function get_url() { |
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$url = sprintf( self::url, get_bloginfo('name' ) ); |
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$affiliate_id = gravityview()->plugin->settings->get( 'affiliate_id', '' ); |
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if( $affiliate_id && is_numeric( $affiliate_id ) ) { |
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$url = add_query_arg( array( 'ref' => $affiliate_id ), $url ); |
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} |
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$url = add_query_arg( array( |
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'utm_source' => 'powered_by', |
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'utm_term' => get_bloginfo('name' ), |
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), $url ); |
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/** |
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* @filter `gravityview/powered_by/url` Modify the URL returned by the Powered By link |
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* @param $url string The URL passed to the Powered By link |
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*/ |
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$url = apply_filters( 'gravityview/powered_by/url', $url ); |
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return $url; |
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} |
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} |
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new GravityView_Powered_By(); |
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gravityview /
GravityView
