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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 471 | if ( JSON_ERROR_NONE !== $json_decoding_error ) { |
| 472 | trigger_error( 'Error when decoding a theme.json schema for user data. ' . json_last_error_msg() ); |
| 473 | /** |
| 474 | * Filters the data provided by the user for global styles & settings. |
| 475 | * |
| 476 | * @since 6.1.0 |
| 477 | * |
| 478 | * @param WP_Theme_JSON_Data Class to access and update the underlying data. |
| 479 | */ |
| 480 | $theme_json = apply_filters( 'wp_theme_json_data_user', new WP_Theme_JSON_Data( $config, 'custom' ) ); |
| 481 | $config = $theme_json->get_data(); |
| 482 | return new WP_Theme_JSON( $config, 'custom' ); |
| 483 | } |
| 484 | |
| 485 | // Very important to verify that the flag isGlobalStylesUserThemeJSON is true. |
| 486 | // If it's not true then the content was not escaped and is not safe. |
| 487 | if ( |
| 488 | is_array( $decoded_data ) && |
| 489 | isset( $decoded_data['isGlobalStylesUserThemeJSON'] ) && |
| 490 | $decoded_data['isGlobalStylesUserThemeJSON'] |
| 491 | ) { |
| 492 | unset( $decoded_data['isGlobalStylesUserThemeJSON'] ); |
| 493 | $config = $decoded_data; |
| 494 | } |
| 495 | } |
| 496 | |
| 497 | /** This filter is documented in wp-includes/class-wp-theme-json-resolver.php */ |
| 498 | $theme_json = apply_filters( 'wp_theme_json_data_user', new WP_Theme_JSON_Data( $config, 'custom' ) ); |
| 499 | $config = $theme_json->get_data(); |
| 500 | static::$user = new WP_Theme_JSON( $config, 'custom' ); |
| 501 | |
| 502 | return static::$user; |
| 503 | } |
| 504 | |
| 505 | /** |
| 506 | * Returns the data merged from multiple origins. |
| 507 | * |