371 lines
9.2 KiB
PHP
371 lines
9.2 KiB
PHP
<?php
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/**
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* Custom Header functionality for Twenty Fifteen
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*
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* @package WordPress
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* @subpackage Twenty_Fifteen
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* @since Twenty Fifteen 1.0
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*/
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/**
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* Set up the WordPress core custom header feature.
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*
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* @uses twentyfifteen_header_style()
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*/
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function twentyfifteen_custom_header_setup() {
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$color_scheme = twentyfifteen_get_color_scheme();
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$default_text_color = trim( $color_scheme[4], '#' );
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/**
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* Filter Twenty Fifteen custom-header support arguments.
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*
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* @since Twenty Fifteen 1.0
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*
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* @param array $args {
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* An array of custom-header support arguments.
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*
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* @type string $default_text_color Default color of the header text.
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* @type int $width Width in pixels of the custom header image. Default 954.
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* @type int $height Height in pixels of the custom header image. Default 1300.
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* @type string $wp-head-callback Callback function used to styles the header image and text
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* displayed on the blog.
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* }
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*/
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add_theme_support( 'custom-header', apply_filters( 'twentyfifteen_custom_header_args', array(
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'default-text-color' => $default_text_color,
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'width' => 954,
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'height' => 1300,
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'wp-head-callback' => 'twentyfifteen_header_style',
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) ) );
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}
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add_action( 'after_setup_theme', 'twentyfifteen_custom_header_setup' );
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/**
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* Convert HEX to RGB.
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*
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* @since Twenty Fifteen 1.0
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*
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* @param string $color The original color, in 3- or 6-digit hexadecimal form.
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* @return array Array containing RGB (red, green, and blue) values for the given
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* HEX code, empty array otherwise.
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*/
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function twentyfifteen_hex2rgb( $color ) {
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$color = trim( $color, '#' );
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if ( strlen( $color ) == 3 ) {
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$r = hexdec( substr( $color, 0, 1 ).substr( $color, 0, 1 ) );
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$g = hexdec( substr( $color, 1, 1 ).substr( $color, 1, 1 ) );
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$b = hexdec( substr( $color, 2, 1 ).substr( $color, 2, 1 ) );
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} else if ( strlen( $color ) == 6 ) {
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$r = hexdec( substr( $color, 0, 2 ) );
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$g = hexdec( substr( $color, 2, 2 ) );
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$b = hexdec( substr( $color, 4, 2 ) );
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} else {
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return array();
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}
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return array( 'red' => $r, 'green' => $g, 'blue' => $b );
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}
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if ( ! function_exists( 'twentyfifteen_header_style' ) ) :
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/**
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* Styles the header image and text displayed on the blog.
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*
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* @since Twenty Fifteen 1.0
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*
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* @see twentyfifteen_custom_header_setup()
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*/
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function twentyfifteen_header_style() {
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$header_image = get_header_image();
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// If no custom options for text are set, let's bail.
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if ( empty( $header_image ) && display_header_text() ) {
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return;
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}
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// If we get this far, we have custom styles. Let's do this.
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?>
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<style type="text/css" id="twentyfifteen-header-css">
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<?php
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// Short header for when there is no Custom Header and Header Text is hidden.
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if ( empty( $header_image ) && ! display_header_text() ) :
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?>
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.site-header {
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padding-top: 14px;
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padding-bottom: 14px;
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}
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.site-branding {
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min-height: 42px;
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}
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@media screen and (min-width: 46.25em) {
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.site-header {
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padding-top: 21px;
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padding-bottom: 21px;
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}
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.site-branding {
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min-height: 56px;
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}
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}
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@media screen and (min-width: 55em) {
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.site-header {
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padding-top: 25px;
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padding-bottom: 25px;
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}
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.site-branding {
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min-height: 62px;
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}
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}
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@media screen and (min-width: 59.6875em) {
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.site-header {
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padding-top: 0;
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padding-bottom: 0;
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}
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.site-branding {
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min-height: 0;
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}
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}
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<?php
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endif;
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// Has a Custom Header been added?
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if ( ! empty( $header_image ) ) :
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?>
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.site-header {
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/*
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* No shorthand so the Customizer can override individual properties.
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* @see https://core.trac.wordpress.org/ticket/31460
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*/
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background-image: url(<?php header_image(); ?>);
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background-repeat: no-repeat;
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background-position: 50% 50%;
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-webkit-background-size: cover;
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-moz-background-size: cover;
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-o-background-size: cover;
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background-size: cover;
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}
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@media screen and (min-width: 59.6875em) {
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body:before {
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/*
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* No shorthand so the Customizer can override individual properties.
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* @see https://core.trac.wordpress.org/ticket/31460
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*/
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background-image: url(<?php header_image(); ?>);
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background-repeat: no-repeat;
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background-position: 100% 50%;
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-webkit-background-size: cover;
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-moz-background-size: cover;
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-o-background-size: cover;
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background-size: cover;
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border-right: 0;
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}
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.site-header {
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background: transparent;
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}
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}
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<?php
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endif;
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// Has the text been hidden?
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if ( ! display_header_text() ) :
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?>
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.site-title,
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.site-description {
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clip: rect(1px, 1px, 1px, 1px);
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position: absolute;
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}
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<?php endif; ?>
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</style>
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<?php
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}
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endif; // twentyfifteen_header_style
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/**
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* Enqueues front-end CSS for the header background color.
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*
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* @since Twenty Fifteen 1.0
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*
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* @see wp_add_inline_style()
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*/
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function twentyfifteen_header_background_color_css() {
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$color_scheme = twentyfifteen_get_color_scheme();
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$default_color = $color_scheme[1];
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$header_background_color = get_theme_mod( 'header_background_color', $default_color );
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// Don't do anything if the current color is the default.
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if ( $header_background_color === $default_color ) {
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return;
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}
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$css = '
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/* Custom Header Background Color */
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body:before,
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.site-header {
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background-color: %1$s;
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}
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@media screen and (min-width: 59.6875em) {
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.site-header,
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.secondary {
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background-color: transparent;
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}
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.widget button,
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.widget input[type="button"],
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.widget input[type="reset"],
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.widget input[type="submit"],
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.widget_calendar tbody a,
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.widget_calendar tbody a:hover,
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.widget_calendar tbody a:focus {
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color: %1$s;
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}
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}
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';
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wp_add_inline_style( 'twentyfifteen-style', sprintf( $css, $header_background_color ) );
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}
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add_action( 'wp_enqueue_scripts', 'twentyfifteen_header_background_color_css', 11 );
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/**
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* Enqueues front-end CSS for the sidebar text color.
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*
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* @since Twenty Fifteen 1.0
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*/
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function twentyfifteen_sidebar_text_color_css() {
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$color_scheme = twentyfifteen_get_color_scheme();
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$default_color = $color_scheme[4];
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$sidebar_link_color = get_theme_mod( 'sidebar_textcolor', $default_color );
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// Don't do anything if the current color is the default.
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if ( $sidebar_link_color === $default_color ) {
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return;
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}
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// If we get this far, we have custom styles. Let's do this.
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$sidebar_link_color_rgb = twentyfifteen_hex2rgb( $sidebar_link_color );
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$sidebar_text_color = vsprintf( 'rgba( %1$s, %2$s, %3$s, 0.7)', $sidebar_link_color_rgb );
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$sidebar_border_color = vsprintf( 'rgba( %1$s, %2$s, %3$s, 0.1)', $sidebar_link_color_rgb );
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$sidebar_border_focus_color = vsprintf( 'rgba( %1$s, %2$s, %3$s, 0.3)', $sidebar_link_color_rgb );
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$css = '
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/* Custom Sidebar Text Color */
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.site-title a,
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.site-description,
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.secondary-toggle:before {
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color: %1$s;
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}
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.site-title a:hover,
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.site-title a:focus {
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color: %1$s; /* Fallback for IE7 and IE8 */
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color: %2$s;
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}
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.secondary-toggle {
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border-color: %1$s; /* Fallback for IE7 and IE8 */
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border-color: %3$s;
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}
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.secondary-toggle:hover,
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.secondary-toggle:focus {
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border-color: %1$s; /* Fallback for IE7 and IE8 */
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border-color: %4$s;
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}
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.site-title a {
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outline-color: %1$s; /* Fallback for IE7 and IE8 */
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outline-color: %4$s;
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}
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@media screen and (min-width: 59.6875em) {
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.secondary a,
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.dropdown-toggle:after,
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.widget-title,
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.widget blockquote cite,
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.widget blockquote small {
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color: %1$s;
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}
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.widget button,
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.widget input[type="button"],
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.widget input[type="reset"],
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.widget input[type="submit"],
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.widget_calendar tbody a {
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background-color: %1$s;
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}
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.textwidget a {
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border-color: %1$s;
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}
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.secondary a:hover,
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.secondary a:focus,
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.main-navigation .menu-item-description,
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.widget,
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.widget blockquote,
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.widget .wp-caption-text,
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.widget .gallery-caption {
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color: %2$s;
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}
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.widget button:hover,
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.widget button:focus,
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.widget input[type="button"]:hover,
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.widget input[type="button"]:focus,
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.widget input[type="reset"]:hover,
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.widget input[type="reset"]:focus,
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.widget input[type="submit"]:hover,
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.widget input[type="submit"]:focus,
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.widget_calendar tbody a:hover,
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.widget_calendar tbody a:focus {
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background-color: %2$s;
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}
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.widget blockquote {
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border-color: %2$s;
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}
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.main-navigation ul,
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.main-navigation li,
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.secondary-toggle,
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.widget input,
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.widget textarea,
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.widget table,
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.widget th,
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.widget td,
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.widget pre,
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.widget li,
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.widget_categories .children,
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.widget_nav_menu .sub-menu,
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.widget_pages .children,
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.widget abbr[title] {
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border-color: %3$s;
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}
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.dropdown-toggle:hover,
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.dropdown-toggle:focus,
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.widget hr {
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background-color: %3$s;
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}
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.widget input:focus,
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.widget textarea:focus {
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border-color: %4$s;
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}
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.sidebar a:focus,
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.dropdown-toggle:focus {
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outline-color: %4$s;
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}
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}
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';
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wp_add_inline_style( 'twentyfifteen-style', sprintf( $css, $sidebar_link_color, $sidebar_text_color, $sidebar_border_color, $sidebar_border_focus_color ) );
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}
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add_action( 'wp_enqueue_scripts', 'twentyfifteen_sidebar_text_color_css', 11 );
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