1<?php
  2/**
  3 * Duotone block support flag.
  4 *
  5 * Parts of this source were derived and modified from TinyColor,
  6 * released under the MIT license.
  7 *
  8 * https://github.com/bgrins/TinyColor
  9 *
 10 * Copyright (c), Brian Grinstead, http://briangrinstead.com
 11 *
 12 * Permission is hereby granted, free of charge, to any person obtaining
 13 * a copy of this software and associated documentation files (the
 14 * "Software"), to deal in the Software without restriction, including
 15 * without limitation the rights to use, copy, modify, merge, publish,
 16 * distribute, sublicense, and/or sell copies of the Software, and to
 17 * permit persons to whom the Software is furnished to do so, subject to
 18 * the following conditions:
 19 *
 20 * The above copyright notice and this permission notice shall be
 21 * included in all copies or substantial portions of the Software.
 22 *
 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 27 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 28 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 29 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 30 *
 31 * @package WordPress
 32 * @since 5.8.0
 33 */
 34
 35// Register the block support.
 36WP_Block_Supports::get_instance()->register(
 37	'duotone',
 38	array(
 39		'register_attribute' => array( 'WP_Duotone', 'register_duotone_support' ),
 40	)
 41);
 42
 43// Add classnames to blocks using duotone support.
 44add_filter( 'render_block', array( 'WP_Duotone', 'render_duotone_support' ), 10, 3 );
 45add_filter( 'render_block_core/image', array( 'WP_Duotone', 'restore_image_outer_container' ), 10, 1 );
 46
 47// Enqueue styles.
 48// Block styles (core-block-supports-inline-css) before the style engine (wp_enqueue_stored_styles).
 49// Global styles (global-styles-inline-css) after the other global styles (wp_enqueue_global_styles).
 50add_action( 'wp_enqueue_scripts', array( 'WP_Duotone', 'output_block_styles' ), 9 );
 51add_action( 'wp_enqueue_scripts', array( 'WP_Duotone', 'output_global_styles' ), 11 );
 52
 53// Add SVG filters to the footer. Also, for classic themes, output block styles (core-block-supports-inline-css).
 54add_action( 'wp_footer', array( 'WP_Duotone', 'output_footer_assets' ), 10 );
 55
 56// Add styles and SVGs for use in the editor via the EditorStyles component.
 57add_filter( 'block_editor_settings_all', array( 'WP_Duotone', 'add_editor_settings' ), 10 );
 58
 59// Migrate the old experimental duotone support flag.
 60add_filter( 'block_type_metadata_settings', array( 'WP_Duotone', 'migrate_experimental_duotone_support_flag' ), 10, 2 );
 61