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<?php
/**
* Editor Blocks Theme Customizer
*
* @package editor-blocks
* @copyright Copyright (c) 2018, Danny Cooper
* @license http://opensource.org/licenses/gpl-2.0.php GNU Public License
*/
/**
* Add postMessage support for site title and description for the Theme Customizer.
*
* @param WP_Customize_Manager $wp_customize Theme Customizer object.
*/
function editor_blocks_customize_register( $wp_customize ) {
$wp_customize->get_setting( 'blogname' )->transport = 'postMessage';
$wp_customize->get_setting( 'blogdescription' )->transport = 'postMessage';
$wp_customize->get_setting( 'header_textcolor' )->transport = 'postMessage';
}
add_action( 'customize_register', 'editor_blocks_customize_register' );
/**
* Binds JS handlers to make Theme Customizer preview reload changes asynchronously.
*/
function editor_blocks_customize_preview_js() {
wp_enqueue_script( 'editor_blocks_customizer', get_template_directory_uri() . '/assets/js/customizer.js', array( 'customize-preview' ), '20151215', true );
}
add_action( 'customize_preview_init', 'editor_blocks_customize_preview_js' );
/**
* Get lighter/darker color when given a hex value.
*
* @param string $hex The hex value to darken.
* @param int $steps Steps should be between -255 and 255. Negative = darker, positive = lighter.
*/
function editor_blocks_brightness( $hex, $steps ) {
$steps = max( -255, min( 255, $steps ) );
// Normalize into a six character long hex string.
$hex = str_replace( '#', '', $hex );
if ( strlen( $hex ) === 3 ) {
$hex = str_repeat( substr( $hex, 0, 1 ), 2 ) . str_repeat( substr( $hex, 1, 1 ), 2 ) . str_repeat( substr( $hex, 2, 1 ), 2 );
}
// Split into three parts: R, G and B.
$color_parts = str_split( $hex, 2 );
$return = '#';
foreach ( $color_parts as $color ) {
$color = hexdec( $color ); // Convert to decimal.
$color = max( 0, min( 255, $color + $steps ) ); // Adjust color.
$return .= str_pad( dechex( $color ), 2, '0', STR_PAD_LEFT ); // Make two char hex code.
}
return sanitize_hex_color( $return );
}