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msd2/wordpress/wp-content/themes/twentyseventeen/inc/custom-header.php

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+<?php
+/**
+ * Custom header implementation
+ *
+ * @link https://codex.wordpress.org/Custom_Headers
+ *
+ * @package WordPress
+ * @subpackage Twenty_Seventeen
+ * @since 1.0
+ */
+
+/**
+ * Set up the WordPress core custom header feature.
+ *
+ * @uses twentyseventeen_header_style()
+ */
+function twentyseventeen_custom_header_setup() {
+
+	/**
+	 * Filter Twenty Seventeen custom-header support arguments.
+	 *
+	 * @since Twenty Seventeen 1.0
+	 *
+	 * @param array $args {
+	 *     An array of custom-header support arguments.
+	 *
+	 *     @type string $default-image          Default image of the header.
+	 *     @type int    $width                  Width in pixels of the custom header image. Default 954.
+	 *     @type int    $height                 Height in pixels of the custom header image. Default 1300.
+	 *     @type string $flex-height            Flex support for height of header.
+	 *     @type string $video                  Video support for header.
+	 *     @type string $wp-head-callback       Callback function used to styles the header image and text
+	 *                                          displayed on the blog.
+	 * }
+	 */
+	add_theme_support(
+		'custom-header',
+		apply_filters(
+			'twentyseventeen_custom_header_args',
+			array(
+				'default-image'    => get_parent_theme_file_uri( '/assets/images/header.jpg' ),
+				'width'            => 2000,
+				'height'           => 1200,
+				'flex-height'      => true,
+				'video'            => true,
+				'wp-head-callback' => 'twentyseventeen_header_style',
+			)
+		)
+	);
+
+	register_default_headers(
+		array(
+			'default-image' => array(
+				'url'           => '%s/assets/images/header.jpg',
+				'thumbnail_url' => '%s/assets/images/header.jpg',
+				'description'   => __( 'Default Header Image', 'twentyseventeen' ),
+			),
+		)
+	);
+}
+add_action( 'after_setup_theme', 'twentyseventeen_custom_header_setup' );
+
+if ( ! function_exists( 'twentyseventeen_header_style' ) ) :
+	/**
+	 * Styles the header image and text displayed on the blog.
+	 *
+	 * @see twentyseventeen_custom_header_setup().
+	 */
+	function twentyseventeen_header_style() {
+		$header_text_color = get_header_textcolor();
+
+		// If no custom options for text are set, let's bail.
+		// get_header_textcolor() options: add_theme_support( 'custom-header' ) is default, hide text (returns 'blank') or any hex value.
+		if ( get_theme_support( 'custom-header', 'default-text-color' ) === $header_text_color ) {
+			return;
+		}
+
+		// If we get this far, we have custom styles. Let's do this.
+		?>
+		<style id="twentyseventeen-custom-header-styles" type="text/css">
+		<?php
+		// Has the text been hidden?
+		if ( 'blank' === $header_text_color ) :
+			?>
+		.site-title,
+		.site-description {
+			position: absolute;
+			clip: rect(1px, 1px, 1px, 1px);
+		}
+			<?php
+			// If the user has set a custom color for the text use that.
+		else :
+			?>
+		.site-title a,
+		.colors-dark .site-title a,
+		.colors-custom .site-title a,
+		body.has-header-image .site-title a,
+		body.has-header-video .site-title a,
+		body.has-header-image.colors-dark .site-title a,
+		body.has-header-video.colors-dark .site-title a,
+		body.has-header-image.colors-custom .site-title a,
+		body.has-header-video.colors-custom .site-title a,
+		.site-description,
+		.colors-dark .site-description,
+		.colors-custom .site-description,
+		body.has-header-image .site-description,
+		body.has-header-video .site-description,
+		body.has-header-image.colors-dark .site-description,
+		body.has-header-video.colors-dark .site-description,
+		body.has-header-image.colors-custom .site-description,
+		body.has-header-video.colors-custom .site-description {
+			color: #<?php echo esc_attr( $header_text_color ); ?>;
+		}
+	<?php endif; ?>
+	</style>
+		<?php
+	}
+endif; // End of twentyseventeen_header_style.
+
+/**
+ * Customize video play/pause button in the custom header.
+ *
+ * @param array $settings Video settings.
+ * @return array The filtered video settings.
+ */
+function twentyseventeen_video_controls( $settings ) {
+	$settings['l10n']['play']  = '<span class="screen-reader-text">' . __( 'Play background video', 'twentyseventeen' ) . '</span>' . twentyseventeen_get_svg( array( 'icon' => 'play' ) );
+	$settings['l10n']['pause'] = '<span class="screen-reader-text">' . __( 'Pause background video', 'twentyseventeen' ) . '</span>' . twentyseventeen_get_svg( array( 'icon' => 'pause' ) );
+	return $settings;
+}
+add_filter( 'header_video_settings', 'twentyseventeen_video_controls' );