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<?php |
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/** |
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* OpenStation — Games registry. |
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* |
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* Server-side registration API + payload builder for desktop games. |
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* A game's discovery metadata (title, icon, description, score |
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* columns) is declared here in PHP so the Games window and the |
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* scoreboard tabs paint at shell boot without downloading any game |
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* code; the game's JS bundle — declared via the `script` handle — |
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* is loaded lazily on first launch and publishes the full def |
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* (including the `render` callback) on |
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* `window.openStationGames[ <id> ]`. |
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* |
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* This deliberate laziness is the one way the games registry differs |
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* from the wallpaper registry it is otherwise modeled on: wallpaper |
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* scripts are enqueued eagerly because the active wallpaper must |
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* paint at boot; game code is only needed when someone plays. |
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* |
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* @package OpenStation |
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*/ |
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|
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defined( 'ABSPATH' ) || exit; |
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|
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/** |
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* Register a server-side desktop game. |
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* |
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* Example: |
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* |
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* ```php |
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* openstation_register_game( 'inkfall', array( |
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* 'title' => __( 'Inkfall', 'desktop-mode' ), |
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* 'description' => __( 'Type the falling words.', 'desktop-mode' ), |
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* 'icon_svg' => '<svg …>…</svg>', |
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* 'script' => 'os-game-inkfall', |
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* 'score_columns' => array( |
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* array( 'key' => 'score', 'label' => __( 'Score', 'desktop-mode' ), 'type' => 'number' ), |
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* array( 'key' => 'time', 'label' => __( 'Time', 'desktop-mode' ), 'type' => 'time' ), |
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* ), |
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* 'config' => array( 'pace' => 'brisk' ), |
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* ) ); |
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* ``` |
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* |
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* ```js |
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* // Inside os-game-inkfall.js |
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* window.openStationGames = window.openStationGames || {}; |
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* window.openStationGames.inkfall = { |
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* id: 'inkfall', |
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* title: 'Inkfall', |
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* icon: 'data:image/svg+xml;base64,…', |
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* scoreColumns: [ … ], |
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* render: function ( ctx ) { return function () {}; }, |
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* }; |
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* ``` |
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* |
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* @param string $id Game id (slug). Must match the |
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* `window.openStationGames[<id>]` key the game's |
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* JS publishes. |
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* @param array $args { |
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* @type string $title Launcher label. Required. |
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* @type string $description Plain-text description shown on the |
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* launcher tile. Optional. |
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* @type string $icon Dashicon class, http(s) URL, or |
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* `data:image/svg+xml` URI. |
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* @type string $icon_svg Raw SVG markup shorthand — converted |
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* to a base64 data URI. Wins over |
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* `icon`. |
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* @type string $script Registered script handle whose file |
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* publishes the game def. Required. |
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* @type array[] $score_columns Scoreboard column declarations: |
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* `{ key, label, type }` with type one |
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* of `number` | `time` | `text`. |
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* @type array $config Arbitrary blob shipped to the game's |
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* launch context (asset URLs, tuning). |
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* The framework merges its own keys in |
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* underneath (`wordsUrl` — see |
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* includes/games/config.php); the |
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* game's keys win on collision. |
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* @type string[] $capabilities Gate: ALL caps must match. |
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* } |
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* @return true|WP_Error `true` on success; `WP_Error` otherwise. |
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*/ |
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function openstation_register_game( $id, $args = array() ) { |
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$id = sanitize_key( (string) $id ); |
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if ( '' === $id ) { |
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return openstation_registration_error( |
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'openstation_missing_id', |
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__( 'Game id is required and must be a valid slug.', 'desktop-mode' ) |
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); |
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} |
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|
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$defaults = array( |
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'title' => '', |
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'description' => '', |
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'icon' => 'dashicons-admin-generic', |
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'icon_svg' => '', |
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'script' => '', |
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'score_columns' => array(), |
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'config' => array(), |
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'capabilities' => array(), |
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); |
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$args = wp_parse_args( $args, $defaults ); |
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|
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$svg = trim( (string) $args['icon_svg'] ); |
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if ( '' !== $svg ) { |
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// Same defence-in-depth as desktop icons: the data URI is |
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// consumed via `<img src=…>` (which sandboxes SVG scripts), |
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// but reject script tags outright anyway. |
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if ( false !== stripos( $svg, '<script' ) ) { |
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return openstation_registration_error( |
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'openstation_invalid_icon_svg', |
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__( 'Game `icon_svg` must not contain a <script> tag.', 'desktop-mode' ), |
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array( 'id' => $id ) |
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); |
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} |
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if ( 0 !== stripos( ltrim( $svg ), '<svg' ) ) { |
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return openstation_registration_error( |
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'openstation_invalid_icon_svg', |
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__( 'Game `icon_svg` must start with a <svg> root element.', 'desktop-mode' ), |
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array( 'id' => $id ) |
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); |
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} |
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$args['icon'] = 'data:image/svg+xml;base64,' . base64_encode( $svg ); |
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} |
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|
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foreach ( (array) $args['capabilities'] as $cap ) { |
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if ( ! current_user_can( (string) $cap ) ) { |
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return openstation_registration_error( |
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'openstation_capability_denied', |
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sprintf( |
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/* translators: %s: capability slug. */ |
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__( 'Current user lacks the %s capability required to register this game.', 'desktop-mode' ), |
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(string) $cap |
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), |
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array( |
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'capability' => (string) $cap, |
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'id' => $id, |
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) |
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); |
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} |
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} |
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|
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if ( '' === (string) $args['title'] ) { |
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return openstation_registration_error( |
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'openstation_missing_title', |
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__( 'Game registration requires a non-empty `title`.', 'desktop-mode' ), |
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array( 'id' => $id ) |
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); |
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} |
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if ( '' === (string) $args['script'] ) { |
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return openstation_registration_error( |
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'openstation_missing_script', |
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__( 'Game registration requires a `script` handle that publishes the game def.', 'desktop-mode' ), |
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array( 'id' => $id ) |
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); |
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} |
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|
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$entry = array( |
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'id' => $id, |
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'title' => (string) $args['title'], |
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'description' => sanitize_textarea_field( (string) $args['description'] ), |
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'icon' => openstation_sanitize_dock_icon( (string) $args['icon'] ), |
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'script' => (string) $args['script'], |
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'score_columns' => openstation_games_sanitize_score_columns( $args['score_columns'] ), |
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'config' => is_array( $args['config'] ) ? $args['config'] : array(), |
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); |
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openstation_games_registry( $id, $entry ); |
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|
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/** |
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* Fires after a desktop game is successfully registered. |
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* |
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* Does NOT fire when `openstation_register_game()` returns a |
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* `WP_Error`. |
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* |
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* @param string $id The game id. |
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* @param array $entry The stored registry entry. |
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*/ |
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do_action( 'openstation_game_registered', $id, $entry ); |
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|
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return true; |
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} |
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|
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/** |
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* Normalize the `score_columns` declaration: drop rows without a |
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* valid key, default labels to the key, and clamp `type` to the |
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* supported set. |
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* |
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* @internal |
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* |
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* @param mixed $columns Raw caller input. |
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* @return array[] Sanitized `{ key, label, type }` rows. |
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*/ |
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function openstation_games_sanitize_score_columns( $columns ) { |
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if ( ! is_array( $columns ) ) { |
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return array(); |
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} |
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$out = array(); |
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foreach ( $columns as $column ) { |
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if ( ! is_array( $column ) ) { |
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continue; |
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} |
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$key = sanitize_key( (string) ( $column['key'] ?? '' ) ); |
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if ( '' === $key ) { |
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continue; |
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} |
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$label = sanitize_text_field( (string) ( $column['label'] ?? '' ) ); |
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$type = (string) ( $column['type'] ?? 'number' ); |
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if ( ! in_array( $type, array( 'number', 'time', 'text' ), true ) ) { |
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$type = 'number'; |
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} |
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$out[] = array( |
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'key' => $key, |
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'label' => '' !== $label ? $label : $key, |
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'type' => $type, |
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); |
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} |
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return $out; |
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} |
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|
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/** |
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* Internal module-level registry for games registered via |
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* {@see openstation_register_game()}. Same static-store pattern as |
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* the widget + wallpaper + native-window registries. |
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* |
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* @internal |
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*/ |
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function openstation_games_registry( $id = '', $entry = null ) { |
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static $store = array(); |
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|
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if ( '' === (string) $id ) { |
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return $store; |
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} |
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// Sentinel write: the literal string `__unset__` removes the entry. |
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if ( '__unset__' === $entry ) { |
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unset( $store[ $id ] ); |
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return null; |
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} |
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if ( null !== $entry ) { |
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$store[ $id ] = $entry; |
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} |
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return isset( $store[ $id ] ) ? $store[ $id ] : null; |
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} |
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|
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/** |
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* Unregister a game. Safe to call for unknown ids. |
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* |
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* @param string $id Game id. |
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* @return bool Whether an entry was removed. |
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*/ |
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function openstation_unregister_game( $id ) { |
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$id = sanitize_key( (string) $id ); |
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if ( '' === $id || null === openstation_games_registry( $id ) ) { |
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return false; |
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} |
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openstation_games_registry( $id, '__unset__' ); |
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return true; |
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} |
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|
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/** |
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* The registered game entries with the `openstation_games` filter |
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* applied. This is the read path everything else (payload, REST |
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* validation) goes through, so filter-registered games validate. |
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* |
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* @return array[] Entries keyed by game id. |
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*/ |
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function openstation_games_get_registered() { |
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$registry = openstation_games_registry(); |
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|
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/** |
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* Filters the server-declared game list. Mirrors the JS-side |
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* `os.games` filter so plugins can add, hide, or |
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* override entries at boot without round-tripping through the |
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* JS registry. |
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* |
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* @param array[] $registry The registered game entries, keyed by id. |
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*/ |
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$registry = apply_filters( 'openstation_games', $registry ); |
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|
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return is_array( $registry ) ? $registry : array(); |
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} |
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|
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/** |
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* Whether a game id is known to the server registry (post-filter). |
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* REST routes 404 unknown games through this. |
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* |
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* @param string $id Game id. |
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* @return bool |
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*/ |
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function openstation_games_is_registered( $id ) { |
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$id = sanitize_key( (string) $id ); |
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if ( '' === $id ) { |
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return false; |
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} |
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$registry = openstation_games_get_registered(); |
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if ( isset( $registry[ $id ] ) ) { |
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return true; |
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} |
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// Filter authors may return a plain list instead of an id-keyed |
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// map — accept entries carrying the id in their payload too. |
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foreach ( $registry as $entry ) { |
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if ( is_array( $entry ) && isset( $entry['id'] ) && (string) $entry['id'] === $id ) { |
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return true; |
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} |
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} |
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return false; |
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} |
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|
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/** |
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* Build the game list for the shell payload. Only metadata + the |
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* resolved script URL cross the wire; the game's render callback is |
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* announced via the JS global its (lazily loaded) script sets up. |
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* |
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* @return array[] |
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*/ |
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function openstation_build_desktop_games_payload() { |
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// The module doesn't load when the framework is disabled, so this |
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// only guards a mid-request flip (the admin just saved the toggle). |
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if ( ! openstation_games_enabled() ) { |
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return array(); |
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} |
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$registry = openstation_games_get_registered(); |
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if ( empty( $registry ) ) { |
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return array(); |
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} |
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$out = array(); |
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foreach ( $registry as $entry ) { |
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if ( ! is_array( $entry ) || empty( $entry['id'] ) ) { |
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continue; |
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} |
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$handle = isset( $entry['script'] ) ? (string) $entry['script'] : ''; |
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$payload = openstation_resolve_script_payload( $handle ); |
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$out[] = array( |
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'id' => (string) $entry['id'], |
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'title' => isset( $entry['title'] ) ? (string) $entry['title'] : '', |
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'description' => isset( $entry['description'] ) ? (string) $entry['description'] : '', |
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'icon' => isset( $entry['icon'] ) ? (string) $entry['icon'] : '', |
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'scoreColumns' => isset( $entry['score_columns'] ) && is_array( $entry['score_columns'] ) |
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? array_map( |
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static function ( $column ) { |
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return array( |
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'key' => (string) $column['key'], |
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'label' => (string) $column['label'], |
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'type' => (string) $column['type'], |
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); |
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}, |
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$entry['score_columns'] |
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) |
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: array(), |
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'config' => array_merge( |
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openstation_games_framework_config(), |
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isset( $entry['config'] ) && is_array( $entry['config'] ) ? $entry['config'] : array() |
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), |
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'scriptUrl' => $payload['url'], |
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'scriptHandle' => $handle, |
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'scriptBefore' => $payload['before'], |
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'scriptAfter' => $payload['after'], |
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'scriptL10n' => $payload['l10n'], |
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'scriptTranslations' => $payload['translations'], |
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); |
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} |
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return $out; |
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} |
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|
