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<?php

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/**

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* Duotone block support flag.

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* Parts of this source were derived and modified from TinyColor,

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* released under the MIT license.

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* https://github.com/bgrins/TinyColor

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* Copyright (c), Brian Grinstead, http://briangrinstead.com

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* Permission is hereby granted, free of charge, to any person obtaining

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* a copy of this software and associated documentation files (the

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* "Software"), to deal in the Software without restriction, including

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* without limitation the rights to use, copy, modify, merge, publish,

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* distribute, sublicense, and/or sell copies of the Software, and to

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* permit persons to whom the Software is furnished to do so, subject to

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* the following conditions:

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* The above copyright notice and this permission notice shall be

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* included in all copies or substantial portions of the Software.

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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE

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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION

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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION

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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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* @package WordPress

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* @since 5.8.0

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// Register the block support.

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WP_Block_Supports::get_instance()->register(

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'duotone',

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array(

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'register_attribute' => array( 'WP_Duotone', 'register_duotone_support' ),

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)

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);

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// Add classnames to blocks using duotone support.

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add_filter( 'render_block', array( 'WP_Duotone', 'render_duotone_support' ), 10, 3 );

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add_filter( 'render_block_core/image', array( 'WP_Duotone', 'restore_image_outer_container' ), 10, 1 );

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// Enqueue styles.

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// Block styles (core-block-supports-inline-css) before the style engine (wp_enqueue_stored_styles).

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// Global styles (global-styles-inline-css) after the other global styles (wp_enqueue_global_styles).

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add_action( 'wp_enqueue_scripts', array( 'WP_Duotone', 'output_block_styles' ), 9 );

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add_action( 'wp_enqueue_scripts', array( 'WP_Duotone', 'output_global_styles' ), 11 );

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// Add SVG filters to the footer. Also, for classic themes, output block styles (core-block-supports-inline-css).

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add_action( 'wp_footer', array( 'WP_Duotone', 'output_footer_assets' ), 10 );

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// Add styles and SVGs for use in the editor via the EditorStyles component.

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add_filter( 'block_editor_settings_all', array( 'WP_Duotone', 'add_editor_settings' ), 10 );

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// Migrate the old experimental duotone support flag.

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add_filter( 'block_type_metadata_settings', array( 'WP_Duotone', 'migrate_experimental_duotone_support_flag' ), 10, 2 );

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