Implement basic settings for View Transitions plugin

plugins/view-transitions/hooks.php

@@ -26,8 +26,16 @@
 add_action( 'wp_head', 'plvt_render_generator' );
 
 /**
- * Filters related to the View Transitions functionality.
+ * Hooks related to the key View Transitions functionality.
  */
 add_action( 'after_setup_theme', 'plvt_polyfill_theme_support', PHP_INT_MAX );
 add_action( 'init', 'plvt_sanitize_view_transitions_theme_support', 1 );
 add_action( 'wp_enqueue_scripts', 'plvt_load_view_transitions' );
+
+/**
+ * Hooks related to the View Transitions settings.
+ */
+add_action( 'init', 'plvt_register_setting' );
+add_action( 'init', 'plvt_apply_settings_to_theme_support' );
+add_action( 'load-options-reading.php', 'plvt_add_setting_ui' );
+add_filter( 'plugin_action_links_' . plugin_basename( VIEW_TRANSITIONS_MAIN_FILE ), 'plvt_add_settings_action_link' );

plugins/view-transitions/includes/class-plvt-view-transition-animation-registry.php

@@ -6,9 +6,17 @@
  * @since 1.0.0
  */
 
+// @codeCoverageIgnoreStart
+if ( ! defined( 'ABSPATH' ) ) {
+	exit; // Exit if accessed directly.
+}
+// @codeCoverageIgnoreEnd
+
 /**
  * Class representing a view transition animation registry.
  *
+ * @phpstan-import-type AnimationConfig from PLVT_View_Transition_Animation
+ *
  * @since 1.0.0
  */
 final class PLVT_View_Transition_Animation_Registry {
@@ -17,7 +25,7 @@ final class PLVT_View_Transition_Animation_Registry {
 	 * Registered animation class instances, keyed by slug.
 	 *
 	 * @since 1.0.0
-	 * @var array<string, PLVT_View_Transition_Animation>
+	 * @var array<non-empty-string, PLVT_View_Transition_Animation>
 	 */
 	private $registered_animations = array();
 
@@ -27,7 +35,7 @@ final class PLVT_View_Transition_Animation_Registry {
 	 * Includes the animation slug itself to avoid unnecessary conditionals.
 	 *
 	 * @since 1.0.0
-	 * @var array<string, string>
+	 * @var array<non-empty-string, non-empty-string>
 	 */
 	private $alias_map = array();
 
@@ -36,7 +44,9 @@ final class PLVT_View_Transition_Animation_Registry {
 	 *
 	 * @since 1.0.0
 	 *
-	 * @param string               $slug         Unique animation slug.
+	 * @phpstan-param AnimationConfig $config Animation config.
+	 *
+	 * @param non-empty-string     $slug         Unique animation slug.
 	 * @param array<string, mixed> $config       Animation configuration. See
 	 *                                           {@see PLVT_View_Transition_Animation::__construct()} for possible
 	 *                                           values.
@@ -132,14 +142,14 @@ public function use_animation_global_transition_names( string $alias, array $arg
 	}
 
 	/**
-	 * Returns whether to apply the post specific view transition names for the given animation alias.
+	 * Returns whether to apply the post-specific view transition names for the given animation alias.
 	 *
 	 * @since 1.0.0
 	 *
 	 * @param string               $alias Slug or alias to reference the animation with. May be used to alter the
 	 *                                    animation's behavior.
 	 * @param array<string, mixed> $args  Optional. Animation arguments. Default is the animation's default arguments.
-	 * @return bool True if the post specific view transition names should be applied, false otherwise.
+	 * @return bool True if the post-specific view transition names should be applied, false otherwise.
 	 */
 	public function use_animation_post_transition_names( string $alias, array $args = array() ): bool {
 		if ( ! isset( $this->alias_map[ $alias ] ) ) {

plugins/view-transitions/includes/class-plvt-view-transition-animation.php

@@ -6,9 +6,23 @@
  * @since 1.0.0
  */
 
+// @codeCoverageIgnoreStart
+if ( ! defined( 'ABSPATH' ) ) {
+	exit; // Exit if accessed directly.
+}
+// @codeCoverageIgnoreEnd
+
 /**
  * Class representing a view transition animation.
  *
+ * @phpstan-type AnimationConfig array{
+ *     aliases?: non-empty-string[],
+ *     use_stylesheet?: bool|non-empty-string,
+ *     use_global_transition_names?: bool|callable(string, array<string,string>):bool,
+ *     use_post_transition_names?: bool|callable(string, array<string,string>):bool,
+ *     get_stylesheet_callback?: callable(string, string, array<string,string>):string|null
+ * }
+ *
  * @since 1.0.0
  * @access private
  */
@@ -18,15 +32,15 @@ final class PLVT_View_Transition_Animation {
 	 * The unique animation slug.
 	 *
 	 * @since 1.0.0
-	 * @var string
+	 * @var non-empty-string
 	 */
 	private $slug;
 
 	/**
 	 * Unique aliases for the animation, if any.
 	 *
 	 * @since 1.0.0
-	 * @var string[]
+	 * @var non-empty-string[]
 	 */
 	private $aliases = array();
 
@@ -50,7 +64,7 @@ final class PLVT_View_Transition_Animation {
 	private $use_global_transition_names = true;
 
 	/**
-	 * Whether to apply the post specific view transition names while using this animation.
+	 * Whether to apply the post-specific view transition names while using this animation.
 	 *
 	 * @since 1.0.0
 	 * @var bool|callable
@@ -87,7 +101,9 @@ final class PLVT_View_Transition_Animation {
 	 *
 	 * @since 1.0.0
 	 *
-	 * @param string               $slug         Unique animation slug.
+	 * @phpstan-param AnimationConfig $config Animation config.
+	 *
+	 * @param non-empty-string     $slug         Unique animation slug.
 	 * @param array<string, mixed> $config       {
 	 *     Animation configuration.
 	 *
@@ -101,7 +117,7 @@ final class PLVT_View_Transition_Animation {
 	 *                                                      using this animation. Alternatively to a concrete value, a
 	 *                                                      callback can be specified to determine it dynamically.
 	 *                                                      Default true.
-	 *     @type bool|callable $use_post_transition_names   Whether to apply the post specific view transition names
+	 *     @type bool|callable $use_post_transition_names   Whether to apply the post-specific view transition names
 	 *                                                      while using this animation. Alternatively to a concrete
 	 *                                                      value, a callback can be specified to determine it
 	 *                                                      dynamically. Default true.
@@ -138,7 +154,7 @@ public function __construct( string $slug, array $config, array $default_args =
 	 *
 	 * @since 1.0.0
 	 *
-	 * @return string Unique animation slug.
+	 * @return non-empty-string Unique animation slug.
 	 */
 	public function get_slug(): string {
 		return $this->slug;
@@ -149,7 +165,7 @@ public function get_slug(): string {
 	 *
 	 * @since 1.0.0
 	 *
-	 * @return string[] Unique aliases for the animation, or empty array if none.
+	 * @return non-empty-string[] Unique aliases for the animation, or empty array if none.
 	 */
 	public function get_aliases(): array {
 		return $this->aliases;
@@ -216,14 +232,14 @@ public function use_global_transition_names( string $alias = '', array $args = a
 	}
 
 	/**
-	 * Returns whether to apply the post specific view transition names while using this animation.
+	 * Returns whether to apply the post-specific view transition names while using this animation.
 	 *
 	 * @since 1.0.0
 	 *
 	 * @param string               $alias Optional. Slug or alias to reference the animation with. May be used to alter
 	 *                                    the animation's behavior. Default is the animation's slug.
 	 * @param array<string, mixed> $args  Optional. Animation arguments. Default is the animation's default arguments.
-	 * @return bool True if the post specific view transition names should be applied, false otherwise.
+	 * @return bool True if the post-specific view transition names should be applied, false otherwise.
 	 */
 	public function use_post_transition_names( string $alias = '', array $args = array() ): bool {
 		if ( is_bool( $this->use_post_transition_names ) ) {

plugins/view-transitions/includes/functions.php

@@ -6,6 +6,12 @@
  * @since 1.0.0
  */
 
+// @codeCoverageIgnoreStart
+if ( ! defined( 'ABSPATH' ) ) {
+	exit; // Exit if accessed directly.
+}
+// @codeCoverageIgnoreEnd
+
 /**
  * Gets the path to a script or stylesheet.
  *