1303 lines
39 KiB
PHP
1303 lines
39 KiB
PHP
<?php
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/**
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* WP_Duotone class
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*
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* Parts of this source were derived and modified from colord,
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* released under the MIT license.
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*
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* https://github.com/omgovich/colord
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*
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* Copyright (c) 2020 Vlad Shilov omgovich@ya.ru
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*
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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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*
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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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*
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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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*
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* @package WordPress
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* @since 6.3.0
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*/
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/**
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* Manages duotone block supports and global styles.
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*
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* @access private
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*/
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class WP_Duotone {
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/**
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* Block names from global, theme, and custom styles that use duotone presets and the slug of
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* the preset they are using.
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*
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* Example:
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* [
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* 'core/featured-image' => 'blue-orange',
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* …
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* ]
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*
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* @internal
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*
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* @since 6.3.0
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*
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* @var array
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*/
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private static $global_styles_block_names;
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/**
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* An array of duotone filter data from global, theme, and custom presets.
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*
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* Example:
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* [
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* 'wp-duotone-blue-orange' => [
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* 'slug' => 'blue-orange',
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* 'colors' => [ '#0000ff', '#ffcc00' ],
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* ],
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* 'wp-duotone-red-yellow' => [
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* 'slug' => 'red-yellow',
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* 'colors' => [ '#cc0000', '#ffff33' ],
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* ],
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* …
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* ]
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*
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* @internal
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*
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* @since 6.3.0
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*
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* @var array
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*/
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private static $global_styles_presets;
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/**
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* All of the duotone filter data from presets for CSS custom properties on
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* the page.
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*
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* Example:
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* [
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* 'wp-duotone-blue-orange' => [
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* 'slug' => 'blue-orange',
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* 'colors' => [ '#0000ff', '#ffcc00' ],
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* ],
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* …
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* ]
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*
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* @internal
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*
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* @since 6.3.0
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*
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* @var array
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*/
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private static $used_global_styles_presets = array();
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/**
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* All of the duotone filter data for SVGs on the page. Includes both
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* presets and custom filters.
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*
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* Example:
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* [
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* 'wp-duotone-blue-orange' => [
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* 'slug' => 'blue-orange',
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* 'colors' => [ '#0000ff', '#ffcc00' ],
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* ],
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* 'wp-duotone-000000-ffffff-2' => [
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* 'slug' => '000000-ffffff-2',
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* 'colors' => [ '#000000', '#ffffff' ],
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* ],
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* …
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* ]
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*
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* @internal
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*
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* @since 6.3.0
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*
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* @var array
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*/
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private static $used_svg_filter_data = array();
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/**
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* All of the block CSS declarations for styles on the page.
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*
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* Example:
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* [
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* [
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* 'selector' => '.wp-duotone-000000-ffffff-2.wp-block-image img',
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* 'declarations' => [
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* 'filter' => 'url(#wp-duotone-000000-ffffff-2)',
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* ],
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* ],
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* …
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* ]
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*
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* @internal
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*
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* @since 6.3.0
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*
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* @var array
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*/
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private static $block_css_declarations = array();
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/**
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* Clamps a value between an upper and lower bound.
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*
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* Direct port of colord's clamp function.
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*
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* @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/helpers.ts#L23 Sourced from colord.
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*
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* @internal
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*
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* @since 6.3.0
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*
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* @param float $number The number to clamp.
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* @param float $min The minimum value.
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* @param float $max The maximum value.
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* @return float The clamped value.
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*/
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private static function colord_clamp( $number, $min = 0, $max = 1 ) {
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return $number > $max ? $max : ( $number > $min ? $number : $min );
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}
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/**
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* Processes and clamps a degree (angle) value properly.
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*
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* Direct port of colord's clampHue function.
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*
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* @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/helpers.ts#L32 Sourced from colord.
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*
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* @internal
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*
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* @since 6.3.0
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*
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* @param float $degrees The hue to clamp.
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* @return float The clamped hue.
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*/
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private static function colord_clamp_hue( $degrees ) {
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$degrees = is_finite( $degrees ) ? $degrees % 360 : 0;
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return $degrees > 0 ? $degrees : $degrees + 360;
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}
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/**
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* Converts a hue value to degrees from 0 to 360 inclusive.
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*
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* Direct port of colord's parseHue function.
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*
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* @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/helpers.ts#L40 Sourced from colord.
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*
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* @internal
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*
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* @since 6.3.0
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*
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* @param float $value The hue value to parse.
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* @param string $unit The unit of the hue value.
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* @return float The parsed hue value.
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*/
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private static function colord_parse_hue( $value, $unit = 'deg' ) {
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$angle_units = array(
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'grad' => 360 / 400,
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'turn' => 360,
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'rad' => 360 / ( M_PI * 2 ),
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);
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$factor = isset( $angle_units[ $unit ] ) ? $angle_units[ $unit ] : 1;
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return (float) $value * $factor;
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}
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/**
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* Parses any valid Hex3, Hex4, Hex6 or Hex8 string and converts it to an RGBA object
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*
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* Direct port of colord's parseHex function.
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*
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* @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/colorModels/hex.ts#L8 Sourced from colord.
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*
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* @internal
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*
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* @since 6.3.0
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*
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* @param string $hex The hex string to parse.
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* @return array|null An array of RGBA values or null if the hex string is invalid.
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*/
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private static function colord_parse_hex( $hex ) {
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$is_match = preg_match(
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'/^#([0-9a-f]{3,8})$/i',
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$hex,
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$hex_match
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);
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if ( ! $is_match ) {
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return null;
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}
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$hex = $hex_match[1];
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if ( 4 >= strlen( $hex ) ) {
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return array(
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'r' => (int) base_convert( $hex[0] . $hex[0], 16, 10 ),
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'g' => (int) base_convert( $hex[1] . $hex[1], 16, 10 ),
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'b' => (int) base_convert( $hex[2] . $hex[2], 16, 10 ),
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'a' => 4 === strlen( $hex ) ? round( base_convert( $hex[3] . $hex[3], 16, 10 ) / 255, 2 ) : 1,
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);
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}
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if ( 6 === strlen( $hex ) || 8 === strlen( $hex ) ) {
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return array(
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'r' => (int) base_convert( substr( $hex, 0, 2 ), 16, 10 ),
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'g' => (int) base_convert( substr( $hex, 2, 2 ), 16, 10 ),
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'b' => (int) base_convert( substr( $hex, 4, 2 ), 16, 10 ),
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'a' => 8 === strlen( $hex ) ? round( (int) base_convert( substr( $hex, 6, 2 ), 16, 10 ) / 255, 2 ) : 1,
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);
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}
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return null;
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}
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/**
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* Clamps an array of RGBA values.
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*
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* Direct port of colord's clampRgba function.
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*
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* @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/colorModels/rgb.ts#L5 Sourced from colord.
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*
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* @internal
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*
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* @since 6.3.0
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*
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* @param array $rgba The RGBA array to clamp.
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* @return array The clamped RGBA array.
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*/
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private static function colord_clamp_rgba( $rgba ) {
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$rgba['r'] = self::colord_clamp( $rgba['r'], 0, 255 );
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$rgba['g'] = self::colord_clamp( $rgba['g'], 0, 255 );
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$rgba['b'] = self::colord_clamp( $rgba['b'], 0, 255 );
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$rgba['a'] = self::colord_clamp( $rgba['a'] );
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return $rgba;
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}
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/**
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* Parses a valid RGB[A] CSS color function/string
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*
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* Direct port of colord's parseRgbaString function.
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*
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* @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/colorModels/rgbString.ts#L18 Sourced from colord.
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*
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* @internal
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*
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* @since 6.3.0
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*
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* @param string $input The RGBA string to parse.
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* @return array|null An array of RGBA values or null if the RGB string is invalid.
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*/
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private static function colord_parse_rgba_string( $input ) {
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// Functional syntax.
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$is_match = preg_match(
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'/^rgba?\(\s*([+-]?\d*\.?\d+)(%)?\s*,\s*([+-]?\d*\.?\d+)(%)?\s*,\s*([+-]?\d*\.?\d+)(%)?\s*(?:,\s*([+-]?\d*\.?\d+)(%)?\s*)?\)$/i',
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$input,
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$match
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);
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if ( ! $is_match ) {
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// Whitespace syntax.
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$is_match = preg_match(
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'/^rgba?\(\s*([+-]?\d*\.?\d+)(%)?\s+([+-]?\d*\.?\d+)(%)?\s+([+-]?\d*\.?\d+)(%)?\s*(?:\/\s*([+-]?\d*\.?\d+)(%)?\s*)?\)$/i',
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$input,
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$match
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);
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}
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if ( ! $is_match ) {
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return null;
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}
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/*
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* For some reason, preg_match doesn't include empty matches at the end
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* of the array, so we add them manually to make things easier later.
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*/
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for ( $i = 1; $i <= 8; $i++ ) {
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if ( ! isset( $match[ $i ] ) ) {
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$match[ $i ] = '';
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}
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}
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if ( $match[2] !== $match[4] || $match[4] !== $match[6] ) {
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return null;
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}
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return self::colord_clamp_rgba(
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array(
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'r' => (float) $match[1] / ( $match[2] ? 100 / 255 : 1 ),
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'g' => (float) $match[3] / ( $match[4] ? 100 / 255 : 1 ),
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'b' => (float) $match[5] / ( $match[6] ? 100 / 255 : 1 ),
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'a' => '' === $match[7] ? 1 : (float) $match[7] / ( $match[8] ? 100 : 1 ),
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)
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);
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}
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/**
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* Clamps an array of HSLA values.
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*
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* Direct port of colord's clampHsla function.
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*
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* @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/colorModels/hsl.ts#L6 Sourced from colord.
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*
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* @internal
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*
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* @since 6.3.0
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*
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* @param array $hsla The HSLA array to clamp.
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* @return array The clamped HSLA array.
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*/
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private static function colord_clamp_hsla( $hsla ) {
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$hsla['h'] = self::colord_clamp_hue( $hsla['h'] );
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$hsla['s'] = self::colord_clamp( $hsla['s'], 0, 100 );
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$hsla['l'] = self::colord_clamp( $hsla['l'], 0, 100 );
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$hsla['a'] = self::colord_clamp( $hsla['a'] );
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return $hsla;
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}
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/**
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* Converts an HSVA array to RGBA.
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*
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* Direct port of colord's hsvaToRgba function.
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*
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* @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/colorModels/hsv.ts#L52 Sourced from colord.
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*
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* @internal
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|
*
|
|
* @since 6.3.0
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*
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* @param array $hsva The HSVA array to convert.
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* @return array The RGBA array.
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*/
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private static function colord_hsva_to_rgba( $hsva ) {
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$h = ( $hsva['h'] / 360 ) * 6;
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$s = $hsva['s'] / 100;
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$v = $hsva['v'] / 100;
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$a = $hsva['a'];
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$hh = floor( $h );
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$b = $v * ( 1 - $s );
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$c = $v * ( 1 - ( $h - $hh ) * $s );
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$d = $v * ( 1 - ( 1 - $h + $hh ) * $s );
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$module = $hh % 6;
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return array(
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'r' => array( $v, $c, $b, $b, $d, $v )[ $module ] * 255,
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'g' => array( $d, $v, $v, $c, $b, $b )[ $module ] * 255,
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'b' => array( $b, $b, $d, $v, $v, $c )[ $module ] * 255,
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'a' => $a,
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);
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}
|
|
|
|
/**
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|
* Converts an HSLA array to HSVA.
|
|
*
|
|
* Direct port of colord's hslaToHsva function.
|
|
*
|
|
* @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/colorModels/hsl.ts#L33 Sourced from colord.
|
|
*
|
|
* @internal
|
|
*
|
|
* @since 6.3.0
|
|
*
|
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* @param array $hsla The HSLA array to convert.
|
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* @return array The HSVA array.
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|
*/
|
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private static function colord_hsla_to_hsva( $hsla ) {
|
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$h = $hsla['h'];
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$s = $hsla['s'];
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$l = $hsla['l'];
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$a = $hsla['a'];
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|
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$s *= ( $l < 50 ? $l : 100 - $l ) / 100;
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|
|
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return array(
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'h' => $h,
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's' => $s > 0 ? ( ( 2 * $s ) / ( $l + $s ) ) * 100 : 0,
|
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'v' => $l + $s,
|
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'a' => $a,
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|
);
|
|
}
|
|
|
|
/**
|
|
* Converts an HSLA array to RGBA.
|
|
*
|
|
* Direct port of colord's hslaToRgba function.
|
|
*
|
|
* @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/colorModels/hsl.ts#L55 Sourced from colord.
|
|
*
|
|
* @internal
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param array $hsla The HSLA array to convert.
|
|
* @return array The RGBA array.
|
|
*/
|
|
private static function colord_hsla_to_rgba( $hsla ) {
|
|
return self::colord_hsva_to_rgba( self::colord_hsla_to_hsva( $hsla ) );
|
|
}
|
|
|
|
/**
|
|
* Parses a valid HSL[A] CSS color function/string.
|
|
*
|
|
* Direct port of colord's parseHslaString function.
|
|
*
|
|
* @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/colorModels/hslString.ts#L17 Sourced from colord.
|
|
*
|
|
* @internal
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param string $input The HSLA string to parse.
|
|
* @return array|null An array of RGBA values or null if the RGB string is invalid.
|
|
*/
|
|
private static function colord_parse_hsla_string( $input ) {
|
|
// Functional syntax.
|
|
$is_match = preg_match(
|
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'/^hsla?\(\s*([+-]?\d*\.?\d+)(deg|rad|grad|turn)?\s*,\s*([+-]?\d*\.?\d+)%\s*,\s*([+-]?\d*\.?\d+)%\s*(?:,\s*([+-]?\d*\.?\d+)(%)?\s*)?\)$/i',
|
|
$input,
|
|
$match
|
|
);
|
|
|
|
if ( ! $is_match ) {
|
|
// Whitespace syntax.
|
|
$is_match = preg_match(
|
|
'/^hsla?\(\s*([+-]?\d*\.?\d+)(deg|rad|grad|turn)?\s+([+-]?\d*\.?\d+)%\s+([+-]?\d*\.?\d+)%\s*(?:\/\s*([+-]?\d*\.?\d+)(%)?\s*)?\)$/i',
|
|
$input,
|
|
$match
|
|
);
|
|
}
|
|
|
|
if ( ! $is_match ) {
|
|
return null;
|
|
}
|
|
|
|
/*
|
|
* For some reason, preg_match doesn't include empty matches at the end
|
|
* of the array, so we add them manually to make things easier later.
|
|
*/
|
|
for ( $i = 1; $i <= 6; $i++ ) {
|
|
if ( ! isset( $match[ $i ] ) ) {
|
|
$match[ $i ] = '';
|
|
}
|
|
}
|
|
|
|
$hsla = self::colord_clamp_hsla(
|
|
array(
|
|
'h' => self::colord_parse_hue( $match[1], $match[2] ),
|
|
's' => (float) $match[3],
|
|
'l' => (float) $match[4],
|
|
'a' => '' === $match[5] ? 1 : (float) $match[5] / ( $match[6] ? 100 : 1 ),
|
|
)
|
|
);
|
|
|
|
return self::colord_hsla_to_rgba( $hsla );
|
|
}
|
|
|
|
/**
|
|
* Tries to convert an incoming string into RGBA values.
|
|
*
|
|
* Direct port of colord's parse function simplified for our use case. This
|
|
* version only supports string parsing and only returns RGBA values.
|
|
*
|
|
* @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/parse.ts#L37 Sourced from colord.
|
|
*
|
|
* @internal
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param string $input The string to parse.
|
|
* @return array|null An array of RGBA values or null if the string is invalid.
|
|
*/
|
|
private static function colord_parse( $input ) {
|
|
$result = self::colord_parse_hex( $input );
|
|
|
|
if ( ! $result ) {
|
|
$result = self::colord_parse_rgba_string( $input );
|
|
}
|
|
|
|
if ( ! $result ) {
|
|
$result = self::colord_parse_hsla_string( $input );
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Takes the inline CSS duotone variable from a block and return the slug.
|
|
*
|
|
* Handles styles slugs like:
|
|
* var:preset|duotone|blue-orange
|
|
* var(--wp--preset--duotone--blue-orange)
|
|
*
|
|
* @internal
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param string $duotone_attr The duotone attribute from a block.
|
|
* @return string The slug of the duotone preset or an empty string if no slug is found.
|
|
*/
|
|
private static function get_slug_from_attribute( $duotone_attr ) {
|
|
// Uses Branch Reset Groups `(?|…)` to return one capture group.
|
|
preg_match( '/(?|var:preset\|duotone\|(\S+)|var\(--wp--preset--duotone--(\S+)\))/', $duotone_attr, $matches );
|
|
|
|
return ! empty( $matches[1] ) ? $matches[1] : '';
|
|
}
|
|
|
|
/**
|
|
* Checks if we have a valid duotone preset.
|
|
*
|
|
* Valid presets are defined in the $global_styles_presets array.
|
|
*
|
|
* @internal
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param string $duotone_attr The duotone attribute from a block.
|
|
* @return bool True if the duotone preset present and valid.
|
|
*/
|
|
private static function is_preset( $duotone_attr ) {
|
|
$slug = self::get_slug_from_attribute( $duotone_attr );
|
|
$filter_id = self::get_filter_id( $slug );
|
|
|
|
return array_key_exists( $filter_id, self::get_all_global_styles_presets() );
|
|
}
|
|
|
|
/**
|
|
* Gets the CSS variable name for a duotone preset.
|
|
*
|
|
* Example output:
|
|
* --wp--preset--duotone--blue-orange
|
|
*
|
|
* @internal
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param string $slug The slug of the duotone preset.
|
|
* @return string The CSS variable name.
|
|
*/
|
|
private static function get_css_custom_property_name( $slug ) {
|
|
return "--wp--preset--duotone--$slug";
|
|
}
|
|
|
|
/**
|
|
* Get the ID of the duotone filter.
|
|
*
|
|
* Example output:
|
|
* wp-duotone-blue-orange
|
|
*
|
|
* @internal
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param string $slug The slug of the duotone preset.
|
|
* @return string The ID of the duotone filter.
|
|
*/
|
|
private static function get_filter_id( $slug ) {
|
|
return "wp-duotone-$slug";
|
|
}
|
|
|
|
/**
|
|
* Get the CSS variable for a duotone preset.
|
|
*
|
|
* Example output:
|
|
* var(--wp--preset--duotone--blue-orange)
|
|
*
|
|
* @internal
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param string $slug The slug of the duotone preset.
|
|
* @return string The CSS variable.
|
|
*/
|
|
private static function get_css_var( $slug ) {
|
|
$name = self::get_css_custom_property_name( $slug );
|
|
return "var($name)";
|
|
}
|
|
|
|
/**
|
|
* Get the URL for a duotone filter.
|
|
*
|
|
* Example output:
|
|
* url(#wp-duotone-blue-orange)
|
|
*
|
|
* @internal
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param string $filter_id The ID of the filter.
|
|
* @return string The URL for the duotone filter.
|
|
*/
|
|
private static function get_filter_url( $filter_id ) {
|
|
return "url(#$filter_id)";
|
|
}
|
|
|
|
/**
|
|
* Gets the SVG for the duotone filter definition.
|
|
*
|
|
* Whitespace is removed when SCRIPT_DEBUG is not enabled.
|
|
*
|
|
* @internal
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param string $filter_id The ID of the filter.
|
|
* @param array $colors An array of color strings.
|
|
* @return string An SVG with a duotone filter definition.
|
|
*/
|
|
private static function get_filter_svg( $filter_id, $colors ) {
|
|
$duotone_values = array(
|
|
'r' => array(),
|
|
'g' => array(),
|
|
'b' => array(),
|
|
'a' => array(),
|
|
);
|
|
|
|
foreach ( $colors as $color_str ) {
|
|
$color = self::colord_parse( $color_str );
|
|
|
|
if ( null === $color ) {
|
|
$error_message = sprintf(
|
|
/* translators: 1: Duotone colors, 2: theme.json, 3: settings.color.duotone */
|
|
__( '"%1$s" in %2$s %3$s is not a hex or rgb string.' ),
|
|
$color_str,
|
|
'theme.json',
|
|
'settings.color.duotone'
|
|
);
|
|
_doing_it_wrong( __METHOD__, $error_message, '6.3.0' );
|
|
} else {
|
|
$duotone_values['r'][] = $color['r'] / 255;
|
|
$duotone_values['g'][] = $color['g'] / 255;
|
|
$duotone_values['b'][] = $color['b'] / 255;
|
|
$duotone_values['a'][] = $color['a'];
|
|
}
|
|
}
|
|
|
|
ob_start();
|
|
|
|
?>
|
|
|
|
<svg
|
|
xmlns="http://www.w3.org/2000/svg"
|
|
viewBox="0 0 0 0"
|
|
width="0"
|
|
height="0"
|
|
focusable="false"
|
|
role="none"
|
|
style="visibility: hidden; position: absolute; left: -9999px; overflow: hidden;"
|
|
>
|
|
<defs>
|
|
<filter id="<?php echo esc_attr( $filter_id ); ?>">
|
|
<feColorMatrix
|
|
color-interpolation-filters="sRGB"
|
|
type="matrix"
|
|
values="
|
|
.299 .587 .114 0 0
|
|
.299 .587 .114 0 0
|
|
.299 .587 .114 0 0
|
|
.299 .587 .114 0 0
|
|
"
|
|
/>
|
|
<feComponentTransfer color-interpolation-filters="sRGB" >
|
|
<feFuncR type="table" tableValues="<?php echo esc_attr( implode( ' ', $duotone_values['r'] ) ); ?>" />
|
|
<feFuncG type="table" tableValues="<?php echo esc_attr( implode( ' ', $duotone_values['g'] ) ); ?>" />
|
|
<feFuncB type="table" tableValues="<?php echo esc_attr( implode( ' ', $duotone_values['b'] ) ); ?>" />
|
|
<feFuncA type="table" tableValues="<?php echo esc_attr( implode( ' ', $duotone_values['a'] ) ); ?>" />
|
|
</feComponentTransfer>
|
|
<feComposite in2="SourceGraphic" operator="in" />
|
|
</filter>
|
|
</defs>
|
|
</svg>
|
|
|
|
<?php
|
|
|
|
$svg = ob_get_clean();
|
|
|
|
if ( ! SCRIPT_DEBUG ) {
|
|
// Clean up the whitespace.
|
|
$svg = preg_replace( "/[\r\n\t ]+/", ' ', $svg );
|
|
$svg = str_replace( '> <', '><', $svg );
|
|
$svg = trim( $svg );
|
|
}
|
|
|
|
return $svg;
|
|
}
|
|
|
|
/**
|
|
* Returns the prefixed id for the duotone filter for use as a CSS id.
|
|
*
|
|
* Exported for the deprecated function wp_get_duotone_filter_id().
|
|
*
|
|
* @internal
|
|
*
|
|
* @since 6.3.0
|
|
* @deprecated 6.3.0
|
|
*
|
|
* @param array $preset Duotone preset value as seen in theme.json.
|
|
* @return string Duotone filter CSS id.
|
|
*/
|
|
public static function get_filter_id_from_preset( $preset ) {
|
|
_deprecated_function( __FUNCTION__, '6.3.0' );
|
|
|
|
$filter_id = '';
|
|
if ( isset( $preset['slug'] ) ) {
|
|
$filter_id = self::get_filter_id( $preset['slug'] );
|
|
}
|
|
return $filter_id;
|
|
}
|
|
|
|
/**
|
|
* Gets the SVG for the duotone filter definition from a preset.
|
|
*
|
|
* Exported for the deprecated function wp_get_duotone_filter_property().
|
|
*
|
|
* @internal
|
|
*
|
|
* @since 6.3.0
|
|
* @deprecated 6.3.0
|
|
*
|
|
* @param array $preset The duotone preset.
|
|
* @return string The SVG for the filter definition.
|
|
*/
|
|
public static function get_filter_svg_from_preset( $preset ) {
|
|
_deprecated_function( __FUNCTION__, '6.3.0' );
|
|
|
|
$filter_id = self::get_filter_id_from_preset( $preset );
|
|
return self::get_filter_svg( $filter_id, $preset['colors'] );
|
|
}
|
|
|
|
/**
|
|
* Get the SVGs for the duotone filters.
|
|
*
|
|
* Example output:
|
|
* <svg><defs><filter id="wp-duotone-blue-orange">…</filter></defs></svg><svg>…</svg>
|
|
*
|
|
* @internal
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param array $sources The duotone presets.
|
|
* @return string The SVGs for the duotone filters.
|
|
*/
|
|
private static function get_svg_definitions( $sources ) {
|
|
$svgs = '';
|
|
foreach ( $sources as $filter_id => $filter_data ) {
|
|
$colors = $filter_data['colors'];
|
|
$svgs .= self::get_filter_svg( $filter_id, $colors );
|
|
}
|
|
return $svgs;
|
|
}
|
|
|
|
/**
|
|
* Get the CSS for global styles.
|
|
*
|
|
* Example output:
|
|
* body{--wp--preset--duotone--blue-orange:url('#wp-duotone-blue-orange');}
|
|
*
|
|
* @internal
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param array $sources The duotone presets.
|
|
* @return string The CSS for global styles.
|
|
*/
|
|
private static function get_global_styles_presets( $sources ) {
|
|
$css = 'body{';
|
|
foreach ( $sources as $filter_id => $filter_data ) {
|
|
$slug = $filter_data['slug'];
|
|
$colors = $filter_data['colors'];
|
|
$css_property_name = self::get_css_custom_property_name( $slug );
|
|
$declaration_value = is_string( $colors ) ? $colors : self::get_filter_url( $filter_id );
|
|
$css .= "$css_property_name:$declaration_value;";
|
|
}
|
|
$css .= '}';
|
|
return $css;
|
|
}
|
|
|
|
/**
|
|
* Enqueue a block CSS declaration for the page.
|
|
*
|
|
* This does not include any SVGs.
|
|
*
|
|
* @internal
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param string $filter_id The filter ID. e.g. 'wp-duotone-000000-ffffff-2'.
|
|
* @param string $duotone_selector The block's duotone selector. e.g. '.wp-block-image img'.
|
|
* @param string $filter_value The filter CSS value. e.g. 'url(#wp-duotone-000000-ffffff-2)' or 'unset'.
|
|
*/
|
|
private static function enqueue_block_css( $filter_id, $duotone_selector, $filter_value ) {
|
|
// Build the CSS selectors to which the filter will be applied.
|
|
$selectors = explode( ',', $duotone_selector );
|
|
|
|
$selectors_scoped = array();
|
|
foreach ( $selectors as $selector_part ) {
|
|
/*
|
|
* Assuming the selector part is a subclass selector (not a tag name)
|
|
* so we can prepend the filter id class. If we want to support elements
|
|
* such as `img` or namespaces, we'll need to add a case for that here.
|
|
*/
|
|
$selectors_scoped[] = '.' . $filter_id . trim( $selector_part );
|
|
}
|
|
|
|
$selector = implode( ', ', $selectors_scoped );
|
|
|
|
self::$block_css_declarations[] = array(
|
|
'selector' => $selector,
|
|
'declarations' => array(
|
|
'filter' => $filter_value,
|
|
),
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Enqueue custom filter assets for the page.
|
|
*
|
|
* Includes an SVG filter and block CSS declaration.
|
|
*
|
|
* @internal
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param string $filter_id The filter ID. e.g. 'wp-duotone-000000-ffffff-2'.
|
|
* @param string $duotone_selector The block's duotone selector. e.g. '.wp-block-image img'.
|
|
* @param string $filter_value The filter CSS value. e.g. 'url(#wp-duotone-000000-ffffff-2)' or 'unset'.
|
|
* @param array $filter_data Duotone filter data with 'slug' and 'colors' keys.
|
|
*/
|
|
private static function enqueue_custom_filter( $filter_id, $duotone_selector, $filter_value, $filter_data ) {
|
|
self::$used_svg_filter_data[ $filter_id ] = $filter_data;
|
|
self::enqueue_block_css( $filter_id, $duotone_selector, $filter_value );
|
|
}
|
|
|
|
/**
|
|
* Enqueue preset assets for the page.
|
|
*
|
|
* Includes a CSS custom property, SVG filter, and block CSS declaration.
|
|
*
|
|
* @internal
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param string $filter_id The filter ID. e.g. 'wp-duotone-blue-orange'.
|
|
* @param string $duotone_selector The block's duotone selector. e.g. '.wp-block-image img'.
|
|
* @param string $filter_value The filter CSS value. e.g. 'url(#wp-duotone-blue-orange)' or 'unset'.
|
|
*/
|
|
private static function enqueue_global_styles_preset( $filter_id, $duotone_selector, $filter_value ) {
|
|
$global_styles_presets = self::get_all_global_styles_presets();
|
|
if ( ! array_key_exists( $filter_id, $global_styles_presets ) ) {
|
|
$error_message = sprintf(
|
|
/* translators: 1: Duotone filter ID, 2: theme.json */
|
|
__( 'The duotone id "%1$s" is not registered in %2$s settings' ),
|
|
$filter_id,
|
|
'theme.json'
|
|
);
|
|
_doing_it_wrong( __METHOD__, $error_message, '6.3.0' );
|
|
return;
|
|
}
|
|
self::$used_global_styles_presets[ $filter_id ] = $global_styles_presets[ $filter_id ];
|
|
self::enqueue_custom_filter( $filter_id, $duotone_selector, $filter_value, $global_styles_presets[ $filter_id ] );
|
|
}
|
|
|
|
/**
|
|
* Registers the style and colors block attributes for block types that support it.
|
|
*
|
|
* Block support is added with `supports.filter.duotone` in block.json.
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param WP_Block_Type $block_type Block Type.
|
|
*/
|
|
public static function register_duotone_support( $block_type ) {
|
|
/*
|
|
* Previous `color.__experimentalDuotone` support flag is migrated
|
|
* to `filter.duotone` via `block_type_metadata_settings` filter.
|
|
*/
|
|
if ( block_has_support( $block_type, array( 'filter', 'duotone' ), null ) ) {
|
|
if ( ! $block_type->attributes ) {
|
|
$block_type->attributes = array();
|
|
}
|
|
|
|
if ( ! array_key_exists( 'style', $block_type->attributes ) ) {
|
|
$block_type->attributes['style'] = array(
|
|
'type' => 'object',
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get the CSS selector for a block type.
|
|
*
|
|
* This handles selectors defined in `color.__experimentalDuotone` support
|
|
* if `filter.duotone` support is not defined.
|
|
*
|
|
* @internal
|
|
* @since 6.3.0
|
|
*
|
|
* @param WP_Block_Type $block_type Block type to check for support.
|
|
* @return string|null The CSS selector or null if there is no support.
|
|
*/
|
|
private static function get_selector( $block_type ) {
|
|
if ( ! ( $block_type instanceof WP_Block_Type ) ) {
|
|
return null;
|
|
}
|
|
|
|
/*
|
|
* Backward compatibility with `supports.color.__experimentalDuotone`
|
|
* is provided via the `block_type_metadata_settings` filter. If
|
|
* `supports.filter.duotone` has not been set and the experimental
|
|
* property has been, the experimental property value is copied into
|
|
* `supports.filter.duotone`.
|
|
*/
|
|
$duotone_support = block_has_support( $block_type, array( 'filter', 'duotone' ) );
|
|
if ( ! $duotone_support ) {
|
|
return null;
|
|
}
|
|
|
|
/*
|
|
* If the experimental duotone support was set, that value is to be
|
|
* treated as a selector and requires scoping.
|
|
*/
|
|
$experimental_duotone = isset( $block_type->supports['color']['__experimentalDuotone'] )
|
|
? $block_type->supports['color']['__experimentalDuotone']
|
|
: false;
|
|
if ( $experimental_duotone ) {
|
|
$root_selector = wp_get_block_css_selector( $block_type );
|
|
return is_string( $experimental_duotone )
|
|
? WP_Theme_JSON::scope_selector( $root_selector, $experimental_duotone )
|
|
: $root_selector;
|
|
}
|
|
|
|
// Regular filter.duotone support uses filter.duotone selectors with fallbacks.
|
|
return wp_get_block_css_selector( $block_type, array( 'filter', 'duotone' ), true );
|
|
}
|
|
|
|
/**
|
|
* Scrape all possible duotone presets from global and theme styles and
|
|
* store them in self::$global_styles_presets.
|
|
*
|
|
* Used in conjunction with self::render_duotone_support for blocks that
|
|
* use duotone preset filters.
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @return array An array of global styles presets, keyed on the filter ID.
|
|
*/
|
|
private static function get_all_global_styles_presets() {
|
|
if ( isset( self::$global_styles_presets ) ) {
|
|
return self::$global_styles_presets;
|
|
}
|
|
// Get the per block settings from the theme.json.
|
|
$tree = wp_get_global_settings();
|
|
$presets_by_origin = isset( $tree['color']['duotone'] ) ? $tree['color']['duotone'] : array();
|
|
|
|
self::$global_styles_presets = array();
|
|
foreach ( $presets_by_origin as $presets ) {
|
|
foreach ( $presets as $preset ) {
|
|
$filter_id = self::get_filter_id( _wp_to_kebab_case( $preset['slug'] ) );
|
|
|
|
self::$global_styles_presets[ $filter_id ] = $preset;
|
|
}
|
|
}
|
|
|
|
return self::$global_styles_presets;
|
|
}
|
|
|
|
/**
|
|
* Scrape all block names from global styles and store in self::$global_styles_block_names.
|
|
*
|
|
* Used in conjunction with self::render_duotone_support to output the
|
|
* duotone filters defined in the theme.json global styles.
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @return string[] An array of global style block slugs, keyed on the block name.
|
|
*/
|
|
private static function get_all_global_style_block_names() {
|
|
if ( isset( self::$global_styles_block_names ) ) {
|
|
return self::$global_styles_block_names;
|
|
}
|
|
// Get the per block settings from the theme.json.
|
|
$tree = WP_Theme_JSON_Resolver::get_merged_data();
|
|
$block_nodes = $tree->get_styles_block_nodes();
|
|
$theme_json = $tree->get_raw_data();
|
|
|
|
self::$global_styles_block_names = array();
|
|
|
|
foreach ( $block_nodes as $block_node ) {
|
|
// This block definition doesn't include any duotone settings. Skip it.
|
|
if ( empty( $block_node['duotone'] ) ) {
|
|
continue;
|
|
}
|
|
|
|
// Value looks like this: 'var(--wp--preset--duotone--blue-orange)' or 'var:preset|duotone|blue-orange'.
|
|
$duotone_attr_path = array_merge( $block_node['path'], array( 'filter', 'duotone' ) );
|
|
$duotone_attr = _wp_array_get( $theme_json, $duotone_attr_path, array() );
|
|
|
|
if ( empty( $duotone_attr ) ) {
|
|
continue;
|
|
}
|
|
// If it has a duotone filter preset, save the block name and the preset slug.
|
|
$slug = self::get_slug_from_attribute( $duotone_attr );
|
|
|
|
if ( $slug && $slug !== $duotone_attr ) {
|
|
self::$global_styles_block_names[ $block_node['name'] ] = $slug;
|
|
}
|
|
}
|
|
return self::$global_styles_block_names;
|
|
}
|
|
|
|
/**
|
|
* Render out the duotone CSS styles and SVG.
|
|
*
|
|
* The hooks self::set_global_style_block_names and self::set_global_styles_presets
|
|
* must be called before this function.
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param string $block_content Rendered block content.
|
|
* @param array $block Block object.
|
|
* @param WP_Block $wp_block The block instance.
|
|
* @return string Filtered block content.
|
|
*/
|
|
public static function render_duotone_support( $block_content, $block, $wp_block ) {
|
|
if ( ! $block['blockName'] ) {
|
|
return $block_content;
|
|
}
|
|
$duotone_selector = self::get_selector( $wp_block->block_type );
|
|
|
|
if ( ! $duotone_selector ) {
|
|
return $block_content;
|
|
}
|
|
|
|
$global_styles_block_names = self::get_all_global_style_block_names();
|
|
|
|
// The block should have a duotone attribute or have duotone defined in its theme.json to be processed.
|
|
$has_duotone_attribute = isset( $block['attrs']['style']['color']['duotone'] );
|
|
$has_global_styles_duotone = array_key_exists( $block['blockName'], $global_styles_block_names );
|
|
|
|
if ( ! $has_duotone_attribute && ! $has_global_styles_duotone ) {
|
|
return $block_content;
|
|
}
|
|
|
|
// Generate the pieces needed for rendering a duotone to the page.
|
|
if ( $has_duotone_attribute ) {
|
|
|
|
/*
|
|
* Possible values for duotone attribute:
|
|
* 1. Array of colors - e.g. array('#000000', '#ffffff').
|
|
* 2. Variable for an existing Duotone preset - e.g. 'var:preset|duotone|blue-orange' or 'var(--wp--preset--duotone--blue-orange)''
|
|
* 3. A CSS string - e.g. 'unset' to remove globally applied duotone.
|
|
*/
|
|
|
|
$duotone_attr = $block['attrs']['style']['color']['duotone'];
|
|
$is_preset = is_string( $duotone_attr ) && self::is_preset( $duotone_attr );
|
|
$is_css = is_string( $duotone_attr ) && ! $is_preset;
|
|
$is_custom = is_array( $duotone_attr );
|
|
|
|
if ( $is_preset ) {
|
|
|
|
$slug = self::get_slug_from_attribute( $duotone_attr ); // e.g. 'blue-orange'.
|
|
$filter_id = self::get_filter_id( $slug ); // e.g. 'wp-duotone-filter-blue-orange'.
|
|
$filter_value = self::get_css_var( $slug ); // e.g. 'var(--wp--preset--duotone--blue-orange)'.
|
|
|
|
// CSS custom property, SVG filter, and block CSS.
|
|
self::enqueue_global_styles_preset( $filter_id, $duotone_selector, $filter_value );
|
|
|
|
} elseif ( $is_css ) {
|
|
$slug = wp_unique_id( sanitize_key( $duotone_attr . '-' ) ); // e.g. 'unset-1'.
|
|
$filter_id = self::get_filter_id( $slug ); // e.g. 'wp-duotone-filter-unset-1'.
|
|
$filter_value = $duotone_attr; // e.g. 'unset'.
|
|
|
|
// Just block CSS.
|
|
self::enqueue_block_css( $filter_id, $duotone_selector, $filter_value );
|
|
} elseif ( $is_custom ) {
|
|
$slug = wp_unique_id( sanitize_key( implode( '-', $duotone_attr ) . '-' ) ); // e.g. '000000-ffffff-2'.
|
|
$filter_id = self::get_filter_id( $slug ); // e.g. 'wp-duotone-filter-000000-ffffff-2'.
|
|
$filter_value = self::get_filter_url( $filter_id ); // e.g. 'url(#wp-duotone-filter-000000-ffffff-2)'.
|
|
$filter_data = array(
|
|
'slug' => $slug,
|
|
'colors' => $duotone_attr,
|
|
);
|
|
|
|
// SVG filter and block CSS.
|
|
self::enqueue_custom_filter( $filter_id, $duotone_selector, $filter_value, $filter_data );
|
|
}
|
|
} elseif ( $has_global_styles_duotone ) {
|
|
$slug = $global_styles_block_names[ $block['blockName'] ]; // e.g. 'blue-orange'.
|
|
$filter_id = self::get_filter_id( $slug ); // e.g. 'wp-duotone-filter-blue-orange'.
|
|
$filter_value = self::get_css_var( $slug ); // e.g. 'var(--wp--preset--duotone--blue-orange)'.
|
|
|
|
// CSS custom property, SVG filter, and block CSS.
|
|
self::enqueue_global_styles_preset( $filter_id, $duotone_selector, $filter_value );
|
|
}
|
|
|
|
// Like the layout hook, this assumes the hook only applies to blocks with a single wrapper.
|
|
$tags = new WP_HTML_Tag_Processor( $block_content );
|
|
if ( $tags->next_tag() ) {
|
|
$tags->add_class( $filter_id );
|
|
}
|
|
return $tags->get_updated_html();
|
|
}
|
|
|
|
/**
|
|
* Appends the used block duotone filter declarations to the inline block supports CSS.
|
|
*
|
|
* Uses the declarations saved in earlier calls to self::enqueue_block_css.
|
|
*
|
|
* @since 6.3.0
|
|
*/
|
|
public static function output_block_styles() {
|
|
if ( ! empty( self::$block_css_declarations ) ) {
|
|
wp_style_engine_get_stylesheet_from_css_rules(
|
|
self::$block_css_declarations,
|
|
array(
|
|
'context' => 'block-supports',
|
|
)
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Appends the used global style duotone filter presets (CSS custom
|
|
* properties) to the inline global styles CSS.
|
|
*
|
|
* Uses the declarations saved in earlier calls to self::enqueue_global_styles_preset.
|
|
*
|
|
* @since 6.3.0
|
|
*/
|
|
public static function output_global_styles() {
|
|
if ( ! empty( self::$used_global_styles_presets ) ) {
|
|
wp_add_inline_style( 'global-styles', self::get_global_styles_presets( self::$used_global_styles_presets ) );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Outputs all necessary SVG for duotone filters, CSS for classic themes.
|
|
*
|
|
* Uses the declarations saved in earlier calls to self::enqueue_global_styles_preset
|
|
* and self::enqueue_custom_filter.
|
|
*
|
|
* @since 6.3.0
|
|
*/
|
|
public static function output_footer_assets() {
|
|
if ( ! empty( self::$used_svg_filter_data ) ) {
|
|
echo self::get_svg_definitions( self::$used_svg_filter_data );
|
|
}
|
|
|
|
// In block themes, the CSS is added in the head via wp_add_inline_style in the wp_enqueue_scripts action.
|
|
if ( ! wp_is_block_theme() ) {
|
|
$style_tag_id = 'core-block-supports-duotone';
|
|
wp_register_style( $style_tag_id, false );
|
|
if ( ! empty( self::$used_global_styles_presets ) ) {
|
|
wp_add_inline_style( $style_tag_id, self::get_global_styles_presets( self::$used_global_styles_presets ) );
|
|
}
|
|
if ( ! empty( self::$block_css_declarations ) ) {
|
|
wp_add_inline_style( $style_tag_id, wp_style_engine_get_stylesheet_from_css_rules( self::$block_css_declarations ) );
|
|
}
|
|
wp_enqueue_style( $style_tag_id );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Adds the duotone SVGs and CSS custom properties to the editor settings.
|
|
*
|
|
* This allows the properties to be pulled in by the EditorStyles component
|
|
* in JS and rendered in the post editor.
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param array $settings The block editor settings from the `block_editor_settings_all` filter.
|
|
* @return array The editor settings with duotone SVGs and CSS custom properties.
|
|
*/
|
|
public static function add_editor_settings( $settings ) {
|
|
$global_styles_presets = self::get_all_global_styles_presets();
|
|
if ( ! empty( $global_styles_presets ) ) {
|
|
if ( ! isset( $settings['styles'] ) ) {
|
|
$settings['styles'] = array();
|
|
}
|
|
|
|
$settings['styles'][] = array(
|
|
// For the editor we can add all of the presets by default.
|
|
'assets' => self::get_svg_definitions( $global_styles_presets ),
|
|
// The 'svgs' type is new in 6.3 and requires the corresponding JS changes in the EditorStyles component to work.
|
|
'__unstableType' => 'svgs',
|
|
// These styles not generated by global styles, so this must be false or they will be stripped out in wp_get_block_editor_settings.
|
|
'isGlobalStyles' => false,
|
|
);
|
|
|
|
$settings['styles'][] = array(
|
|
// For the editor we can add all of the presets by default.
|
|
'css' => self::get_global_styles_presets( $global_styles_presets ),
|
|
// This must be set and must be something other than 'theme' or they will be stripped out in the post editor <Editor> component.
|
|
'__unstableType' => 'presets',
|
|
// These styles are no longer generated by global styles, so this must be false or they will be stripped out in wp_get_block_editor_settings.
|
|
'isGlobalStyles' => false,
|
|
);
|
|
}
|
|
|
|
return $settings;
|
|
}
|
|
|
|
/**
|
|
* Migrates the experimental duotone support flag to the stabilized location.
|
|
*
|
|
* This moves `supports.color.__experimentalDuotone` to `supports.filter.duotone`.
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param array $settings Current block type settings.
|
|
* @param array $metadata Block metadata as read in via block.json.
|
|
* @return array Filtered block type settings.
|
|
*/
|
|
public static function migrate_experimental_duotone_support_flag( $settings, $metadata ) {
|
|
$duotone_support = isset( $metadata['supports']['color']['__experimentalDuotone'] )
|
|
? $metadata['supports']['color']['__experimentalDuotone']
|
|
: null;
|
|
|
|
if ( ! isset( $settings['supports']['filter']['duotone'] ) && null !== $duotone_support ) {
|
|
_wp_array_set( $settings, array( 'supports', 'filter', 'duotone' ), (bool) $duotone_support );
|
|
}
|
|
|
|
return $settings;
|
|
}
|
|
|
|
/**
|
|
* Gets the CSS filter property value from a preset.
|
|
*
|
|
* Exported for the deprecated function wp_get_duotone_filter_id().
|
|
*
|
|
* @internal
|
|
*
|
|
* @since 6.3.0
|
|
* @deprecated 6.3.0
|
|
*
|
|
* @param array $preset The duotone preset.
|
|
* @return string The CSS filter property value.
|
|
*/
|
|
public static function get_filter_css_property_value_from_preset( $preset ) {
|
|
_deprecated_function( __FUNCTION__, '6.3.0' );
|
|
|
|
if ( isset( $preset['colors'] ) && is_string( $preset['colors'] ) ) {
|
|
return $preset['colors'];
|
|
}
|
|
|
|
$filter_id = self::get_filter_id_from_preset( $preset );
|
|
|
|
return 'url(#' . $filter_id . ')';
|
|
}
|
|
}
|