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<?php |
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/** |
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* Campaign Page |
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* |
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* In SureDonation the campaign post (`suredonation_cmpgn`) IS the campaign page: |
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* it is a public, block-editable post with its own permalink. This class owns the |
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* "campaign page" concept on top of that post — detecting whether a page has been |
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* set up, seeding a default block layout, and resolving the campaign ID for the |
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* campaign display blocks. |
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* |
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* @package SureDonation |
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*/ |
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|
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namespace SureDonation\Inc\Campaigns; |
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|
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use SureDonation\Inc\Traits\Get_Instance; |
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|
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// Exit if accessed directly. |
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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|
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/** |
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* Campaign_Page class. |
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* |
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* @since 1.0.0 |
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*/ |
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class Campaign_Page { |
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use Get_Instance; |
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|
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/** |
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* Anchor id used to link the donate button to the donation form on the page. |
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* |
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* @since 1.0.0 |
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*/ |
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public const FORM_ANCHOR = 'suredonation-donation-form'; |
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|
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/** |
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* Meta flag marking that the campaign has been auto-seeded once. Gates the |
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* publish hook so it never re-seeds on later saves — letting a user clear the |
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* page and have it stay empty. (Button state still keys off has_page(), and |
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* the Create-Page CTA can re-seed on demand regardless of this flag.) |
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* |
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* @since 1.0.0 |
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*/ |
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public const INITIALIZED_META = '_suredonation_campaign_page_initialized'; |
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|
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/** |
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* Re-entrancy guard so seeding (which calls wp_update_post) does not recurse |
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* through the save_post hook. |
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* |
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* @var bool |
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* @since 1.0.0 |
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*/ |
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private $is_seeding = false; |
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|
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/** |
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* Constructor. |
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* |
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* @since 1.0.0 |
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*/ |
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public function __construct() { |
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// Runs after Campaign_Cpt::maybe_create_default_form() (priority 20) so the |
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// default form id is available when the layout is seeded. |
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add_action( 'save_post_' . Campaign_Cpt::POST_TYPE, [ $this, 'maybe_seed_layout' ], 30, 2 ); |
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|
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// Render single campaigns without the theme's single-post chrome (byline / |
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// theme featured image) around the seeded block layout. Classic themes swap |
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// the PHP template; block themes register a native block template so the |
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// theme's header/footer/layout still render through the block canvas. |
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add_filter( 'template_include', [ $this, 'load_campaign_template' ] ); |
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add_action( 'init', [ $this, 'register_campaign_block_template' ] ); |
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} |
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|
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/** |
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* Swap in the plugin's single-campaign template for classic themes. |
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* |
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* Block themes are handled by register_campaign_block_template() instead — a |
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* PHP template cannot reproduce the block theme's header/footer/layout canvas. |
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* |
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* @param string $template Resolved template path. |
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* @return string |
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* @since 1.0.0 |
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*/ |
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public function load_campaign_template( $template ) { |
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if ( wp_is_block_theme() || ! is_singular( Campaign_Cpt::POST_TYPE ) ) { |
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return $template; |
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} |
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|
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$custom = SUREDONATION_DIR . 'templates/single-campaign.php'; |
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|
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return file_exists( $custom ) ? $custom : $template; |
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} |
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|
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/** |
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* Register a native block template for single campaigns on block themes. |
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* |
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* The template renders the theme's header/footer parts, the title, and the |
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* seeded page content (post-content) — but omits the post-meta byline and the |
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* template-level featured image, so the campaign's own cover block shows once. |
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* |
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* @return void |
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* @since 1.0.0 |
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*/ |
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public function register_campaign_block_template() { |
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if ( ! wp_is_block_theme() || ! function_exists( 'register_block_template' ) ) { |
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return; |
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} |
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|
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register_block_template( |
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'suredonation//single-' . Campaign_Cpt::POST_TYPE, |
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[ |
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'title' => __( 'Single Campaign', 'suredonation' ), |
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'description' => __( 'Campaign page without the theme byline or duplicate featured image.', 'suredonation' ), |
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'content' => self::get_block_template_content(), |
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'post_types' => [ Campaign_Cpt::POST_TYPE ], |
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] |
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); |
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} |
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|
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/** |
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* Block markup for the single-campaign block template. |
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* |
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* @return string |
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* @since 1.0.0 |
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*/ |
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private static function get_block_template_content() { |
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return '<!-- wp:template-part {"slug":"header","tagName":"header"} /--> |
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|
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<!-- wp:group {"tagName":"main","layout":{"type":"constrained"}} --> |
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<main class="wp-block-group"><!-- wp:post-title {"level":1} /--> |
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|
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<!-- wp:post-content {"layout":{"type":"constrained"}} /--></main> |
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<!-- /wp:group --> |
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|
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<!-- wp:template-part {"slug":"footer","tagName":"footer"} /-->'; |
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} |
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|
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/** |
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* Seed the default campaign page layout the first time a campaign is published. |
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* |
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* Runs once per campaign (guarded by INITIALIZED_META) so a user who later |
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* clears the page and saves keeps it empty instead of having it re-populated. |
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* |
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* @param int $post_id Post ID. |
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* @param \WP_Post $post Post object. |
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* @return void |
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* @since 1.0.0 |
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*/ |
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public function maybe_seed_layout( $post_id, $post ) { |
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if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) { |
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return; |
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} |
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|
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if ( wp_is_post_revision( $post_id ) ) { |
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return; |
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} |
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|
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// Only seed published campaigns, mirroring default-form creation. |
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if ( 'publish' !== $post->post_status ) { |
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return; |
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} |
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|
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if ( $this->is_seeding ) { |
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return; |
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} |
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|
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// Auto-seed only once. After the first publish the user owns the page — |
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// clearing it must not trigger a re-seed on the next save. |
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if ( get_post_meta( $post_id, self::INITIALIZED_META, true ) ) { |
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return; |
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} |
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|
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update_post_meta( $post_id, self::INITIALIZED_META, 1 ); |
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|
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self::seed_if_empty( $post_id ); |
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} |
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|
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/** |
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* Whether the campaign page has been set up (i.e. its content holds blocks). |
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* |
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* "Empty content = no page" is the single source of truth — it drives both the |
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* admin Create/View button and the seed idempotency guard below. |
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* |
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* @param int $campaign_id Campaign post ID. |
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* @return bool |
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* @since 1.0.0 |
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*/ |
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public static function has_page( $campaign_id ) { |
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$post = get_post( $campaign_id ); |
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|
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if ( ! $post instanceof \WP_Post ) { |
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return false; |
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} |
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|
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return has_blocks( $post->post_content ); |
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} |
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|
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/** |
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* Seed the default layout into a campaign's content, but only when empty so a |
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* user-built page is never clobbered. |
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* |
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* @param int $campaign_id Campaign post ID. |
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* @return bool True when the layout was seeded. |
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* @since 1.0.0 |
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*/ |
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public static function seed_if_empty( $campaign_id ) { |
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$campaign_id = absint( $campaign_id ); |
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$post = get_post( $campaign_id ); |
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|
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if ( ! $post instanceof \WP_Post || Campaign_Cpt::POST_TYPE !== $post->post_type ) { |
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return false; |
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} |
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|
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// Never overwrite content the user already has. |
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if ( self::has_page( $campaign_id ) ) { |
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return false; |
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} |
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|
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$instance = self::get_instance(); |
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$instance->is_seeding = true; |
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$result = wp_update_post( |
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[ |
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'ID' => $campaign_id, |
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'post_content' => self::get_default_layout( $campaign_id ), |
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], |
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true |
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); |
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$instance->is_seeding = false; |
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|
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return ! is_wp_error( $result ); |
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} |
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|
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/** |
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* Resolve the campaign ID a display block should render for. |
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* |
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* Prefers the block's explicit `campaignId` attribute (so the block can be |
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* embedded on any page) and falls back to the current post — which, on a |
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* singular campaign view, is the campaign itself. |
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* |
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* @param array<string, mixed> $attributes Block attributes. |
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* @return int Campaign post ID (0 when it cannot be resolved). |
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* @since 1.0.0 |
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*/ |
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public static function resolve_campaign_id( $attributes ) { |
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$campaign_id = isset( $attributes['campaignId'] ) ? absint( $attributes['campaignId'] ) : 0; |
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|
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if ( ! $campaign_id ) { |
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$campaign_id = (int) get_the_ID(); |
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} |
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|
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if ( Campaign_Cpt::POST_TYPE !== get_post_type( $campaign_id ) ) { |
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return 0; |
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} |
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|
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// Only published campaigns render publicly — the campaignId attribute is |
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// attacker-controllable (any page embed, or the core block-renderer REST |
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// endpoint), so without this gate donor data of draft/private/trashed |
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// campaigns would leak. Users who can edit the specific campaign still |
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// get their in-editor preview (the block-renderer runs as them). |
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if ( |
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'publish' !== get_post_status( $campaign_id ) && |
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! current_user_can( 'edit_post', $campaign_id ) |
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) { |
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return 0; |
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} |
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|
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return $campaign_id; |
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} |
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|
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/** |
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* Resolve the avatar URL for a donor shown in a campaign block. |
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* |
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* Returns the default Gravatar, then lets add-ons (e.g. the SureDonation |
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* Pro donor dashboard) substitute a donor-uploaded avatar via the |
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* `suredonation_donor_avatar_url` filter. Anonymous donors never expose a |
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* real email: the filter receives an empty email and the anonymous flag, |
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* and the avatar falls back to the generic "mystery person" image. |
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* |
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* @param string $email Donor email. |
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* @param bool $is_anonymous Whether the donation/donor is anonymous. |
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* @param int $size Avatar size in pixels. |
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* @return string Avatar URL. |
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* @since 1.0.0 |
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*/ |
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public static function donor_avatar_url( $email, $is_anonymous = false, $size = 80 ) { |
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$email = $is_anonymous ? '' : (string) $email; |
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|
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// Anonymous donors use a constant seed so their email hash is not leaked. |
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$avatar_url = (string) get_avatar_url( |
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$is_anonymous ? 'anonymous' : $email, |
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[ |
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'size' => $size, |
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'default' => 'mm', |
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] |
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); |
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|
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/** |
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* Filters the donor avatar URL shown in campaign blocks. |
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* |
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* Add-ons can substitute a donor-uploaded avatar for the default |
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* Gravatar. The email is empty for anonymous donors, so anonymity is |
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* preserved (no custom avatar should be resolved for them). |
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* |
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* @since 1.0.0 |
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* |
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* @param string $avatar_url Default avatar URL. |
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* @param array<string, mixed> $context Donor context: email, |
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* is_anonymous, size. |
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*/ |
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return (string) apply_filters( |
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'suredonation_donor_avatar_url', |
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$avatar_url, |
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[ |
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'email' => $email, |
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'is_anonymous' => (bool) $is_anonymous, |
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'size' => $size, |
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] |
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); |
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} |
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|
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/** |
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* Build the default campaign page block layout. |
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* |
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* Mirrors GiveWP's default layout using SureDonation's campaign display blocks |
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* plus core blocks for the cover image and description. The campaign title is |
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* intentionally omitted — the theme renders it for a singular post. |
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* |
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* @param int $campaign_id Campaign post ID. |
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* @return string Serialized block markup. |
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* @since 1.0.0 |
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*/ |
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public static function get_default_layout( $campaign_id ) { |
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$campaign_id = absint( $campaign_id ); |
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$form_id = Campaign_Cpt::get_default_form_id( $campaign_id ); |
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$excerpt = (string) get_post_field( 'post_excerpt', $campaign_id ); |
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|
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// Two-column hero matching GiveWP: cover image on the left (60%), and the |
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// goal, two stats, and donate button stacked on the right; followed by the |
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// description, recent donations, and the donor wall. |
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// |
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// The donations/donors blocks set "showButton":true explicitly: their |
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// donate button defaults to off (so the block is safe to drop on any page |
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// without producing a dead "#suredonation-donation-form" link), and the |
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// campaign page is the one place that link reliably resolves. |
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$layout = '<!-- wp:columns {"style":{"spacing":{"padding":{"top":"0","bottom":"0"}}}} --> |
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<div class="wp-block-columns" style="padding-top:0;padding-bottom:0"><!-- wp:column {"verticalAlignment":"stretch","width":"60%"} --> |
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<div class="wp-block-column is-vertically-aligned-stretch" style="flex-basis:60%"><!-- wp:post-featured-image {"aspectRatio":"16/9","width":"100%","height":"100%","style":{"border":{"radius":"8px"}}} /--></div> |
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<!-- /wp:column --> |
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|
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<!-- wp:column {"verticalAlignment":"stretch"} --> |
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<div class="wp-block-column is-vertically-aligned-stretch"><!-- wp:group {"style":{"dimensions":{"minHeight":"100%"}},"layout":{"type":"flex","orientation":"vertical","verticalAlignment":"space-between","justifyContent":"stretch"}} --> |
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<div class="wp-block-group" style="min-height:100%"><!-- wp:suredonation/campaign-goal {"campaignId":%campaignId%} /--> |
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|
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<!-- wp:group {"layout":{"type":"flex","orientation":"vertical"}} --> |
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<div class="wp-block-group"><!-- wp:suredonation/campaign-stats {"campaignId":%campaignId%,"statistic":"top-donation"} /--> |
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|
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<!-- wp:suredonation/campaign-stats {"campaignId":%campaignId%,"statistic":"average-donation"} /--></div> |
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<!-- /wp:group --> |
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|
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<!-- wp:suredonation/campaign-donate-button {"campaignId":%campaignId%} /--></div> |
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<!-- /wp:group --></div> |
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<!-- /wp:column --></div> |
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<!-- /wp:columns --> |
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|
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%description_block%<!-- wp:suredonation/campaign-social-sharing {"campaignId":%campaignId%} /--> |
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|
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<!-- wp:suredonation/campaign-donations {"campaignId":%campaignId%,"showButton":true} /--> |
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|
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<!-- wp:suredonation/campaign-donors {"campaignId":%campaignId%,"showButton":true} /-->'; |
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|
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// SureDonation addition (not in GiveWP, which opens a modal): an inline |
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// donation form. The donate button scrolls to it via the |
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// `#suredonation-donation-form` anchor, which the donation-form block |
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// renders on itself, so the group below intentionally carries no anchor |
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// (setting one too would duplicate the id on the page). |
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$form_attrs = $form_id |
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? sprintf( '{"formId":%d,"campaignId":%%campaignId%%}', $form_id ) |
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: '{"campaignId":%campaignId%}'; |
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|
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$layout .= "\n\n" . '<!-- wp:group --> |
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<div class="wp-block-group"><!-- wp:suredonation/donation-form ' . $form_attrs . ' /--></div> |
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<!-- /wp:group -->'; |
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|
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// Build the description paragraph only when there is one, so an empty |
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// description doesn't leave a stray empty paragraph. esc_html() is the |
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// correct escaper for the paragraph's HTML text content and also |
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// neutralizes any block-delimiter-like sequences ("-->") in the excerpt. |
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$description_block = ''; |
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if ( '' !== trim( $excerpt ) ) { |
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$description_block = "<!-- wp:paragraph -->\n<p>" . esc_html( $excerpt ) . "</p>\n<!-- /wp:paragraph -->\n\n"; |
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} |
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|
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return str_replace( |
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[ '%campaignId%', '%description_block%' ], |
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[ (string) $campaign_id, $description_block ], |
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$layout |
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) . "\n"; |
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} |
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} |
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|
