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This adds the ability for themes to add support for videos in custom headers by passing `'video' => true` as an argument when adding theme support for custom headers. Custom video headers are managed through the “Header Visuals” (i.e. “Header Image”) panel in the Customizer where you can select a video from the media library or set a URL to an external video (YouTube for now) for use in custom headers. This introduces several new functions: `has_header_video()` – Check whether a header video is set or not. `get_header_video_url()` – Retrieve header video URL for custom header. `the_header_video_url()` – Display header video URL. `get_header_video_settings()` – Retrieve header video settings. `has_custom_header()` – Check whether a custom header is set or not. `get_custom_header_markup()` – Retrieve the markup for a custom header. `the_custom_header_markup()` – Print the markup for a custom header. And a new file, `wp-includes/js/wp-custom-header.js` that handles loading videos in custom headers. This also enables video headers in the Twenty Seventeen and Twenty Fourteen themes. Props davidakennedy, celloexpressions, bradyvercher, laurelfulford, joemcgill. Fixes #38172. Built from https://develop.svn.wordpress.org/trunk@38985 git-svn-id: http://core.svn.wordpress.org/trunk@38928 1a063a9b-81f0-0310-95a4-ce76da25c4cd
99 lines
3.1 KiB
PHP
99 lines
3.1 KiB
PHP
<?php
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/**
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* Custom header implementation
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*
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* @link http://codex.wordpress.org/Custom_Headers
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*
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* @package WordPress
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* @subpackage Twenty_Seventeen
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* @since 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 twentyseventeen_header_style()
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*/
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function twentyseventeen_custom_header_setup() {
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/**
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* Filter Twenty Seventeen custom-header support arguments.
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*
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* @since Twenty Seventeen 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-image Default image of the header.
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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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* @type string $flex-height Flex support for height of header.
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* }
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*/
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add_theme_support( 'custom-header', apply_filters( 'twentyseventeen_custom_header_args', array(
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'default-image' => get_parent_theme_file_uri( '/assets/images/header.jpg' ),
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'default-text-color' => 'ffffff',
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'width' => 2000,
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'height' => 1200,
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'flex-height' => true,
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'video' => true,
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'wp-head-callback' => 'twentyseventeen_header_style',
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) ) );
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register_default_headers( array(
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'default-image' => array(
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'url' => '%s/assets/images/header.jpg',
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'thumbnail_url' => '%s/assets/images/header.jpg',
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'description' => __( 'Default Header Image', 'twentyseventeen' ),
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),
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) );
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}
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add_action( 'after_setup_theme', 'twentyseventeen_custom_header_setup' );
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if ( ! function_exists( 'twentyseventeen_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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* @see twentyseventeen_custom_header_setup().
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*/
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function twentyseventeen_header_style() {
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$header_text_color = get_header_textcolor();
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// If no custom options for text are set, let's bail.
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// get_header_textcolor() options: add_theme_support( 'custom-header' ) is default, hide text (returns 'blank') or any hex value.
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if ( get_theme_support( 'custom-header', 'default-text-color' ) === $header_text_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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?>
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<style type="text/css">
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<?php
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// Has the text been hidden?
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if ( 'blank' === $header_text_color ) :
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?>
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.site-title,
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.site-description {
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position: absolute;
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clip: rect(1px, 1px, 1px, 1px);
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}
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<?php
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// If the user has set a custom color for the text use that.
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else :
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?>
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.site-title a,
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.twentyseventeen-front-page:not(.no-header-image) .site-title,
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.twentyseventeen-front-page:not(.no-header-image) .site-title a,
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.site-description,
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.twentyseventeen-front-page:not(.no-header-image) .site-description {
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color: #<?php echo esc_attr( $header_text_color ); ?>;
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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; // End of twentyseventeen_header_style.
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