<?php

/**

 * Implement Custom Header functionality for Twenty Fourteen

 *

 * @package WordPress

 * @subpackage Twenty_Fourteen

 * @since Twenty Fourteen 1.0

 */

/**

 * Set up the WordPress core custom header settings.

 *

 * @since Twenty Fourteen 1.0

 *

 * @uses twentyfourteen_header_style()

 * @uses twentyfourteen_admin_header_style()

 * @uses twentyfourteen_admin_header_image()

 */

function twentyfourteen_custom_header_setup() {

	/**

	 * Filter Twenty Fourteen custom-header support arguments.

	 *

	 * @since Twenty Fourteen 1.0

	 *

	 * @param array $args {

	 *     An array of custom-header support arguments.

	 *

	 *     @type bool   $header_text            Whether to display custom header text. Default false.

	 *     @type int    $width                  Width in pixels of the custom header image. Default 1260.

	 *     @type int    $height                 Height in pixels of the custom header image. Default 240.

	 *     @type bool   $flex_height            Whether to allow flexible-height header images. Default true.

	 *     @type string $admin_head_callback    Callback function used to style the image displayed in

	 *                                          the Appearance > Header screen.

	 *     @type string $admin_preview_callback Callback function used to create the custom header markup in

	 *                                          the Appearance > Header screen.

	 * }

	 */

	add_theme_support( 'custom-header', apply_filters( 'twentyfourteen_custom_header_args', array(

		'default-text-color'     => 'fff',

		'width'                  => 1260,

		'height'                 => 240,

		'flex-height'            => true,

		'wp-head-callback'       => 'twentyfourteen_header_style',

		'admin-head-callback'    => 'twentyfourteen_admin_header_style',

		'admin-preview-callback' => 'twentyfourteen_admin_header_image',

	) ) );

}

add_action( 'after_setup_theme', 'twentyfourteen_custom_header_setup' );

if ( ! function_exists( 'twentyfourteen_header_style' ) ) :

/**

 * Styles the header image and text displayed on the blog

 *

 * @see twentyfourteen_custom_header_setup().

 *

 */

function twentyfourteen_header_style() {

	$text_color = get_header_textcolor();

	// If no custom color for text is set, let's bail.

	if ( display_header_text() && $text_color === get_theme_support( 'custom-header', 'default-text-color' ) )

		return;

	// If we get this far, we have custom styles.

	?>

	<style type="text/css" id="twentyfourteen-header-css">

	<?php

		// Has the text been hidden?

		if ( ! display_header_text() ) :

	?>

		.site-title,

		.site-description {

			clip: rect(1px 1px 1px 1px); /* IE7 */

			clip: rect(1px, 1px, 1px, 1px);

			position: absolute;

		}

	<?php

		// If the user has set a custom color for the text, use that.

		elseif ( $text_color != get_theme_support( 'custom-header', 'default-text-color' ) ) :

	?>

		.site-title a {

			color: #<?php echo esc_attr( $text_color ); ?>;

		}

	<?php endif; ?>

	</style>

	<?php

}

endif; // twentyfourteen_header_style

if ( ! function_exists( 'twentyfourteen_admin_header_style' ) ) :

/**

 * Style the header image displayed on the Appearance > Header screen.

 *

 * @see twentyfourteen_custom_header_setup()

 *

 * @since Twenty Fourteen 1.0

 */

function twentyfourteen_admin_header_style() {

?>

	<style type="text/css" id="twentyfourteen-admin-header-css">

	.appearance_page_custom-header #headimg {

		background-color: #000;

		border: none;

		max-width: 1260px;

		min-height: 48px;

	}

	#headimg h1 {

		font-family: Lato, sans-serif;

		font-size: 18px;

		line-height: 48px;

		margin: 0 0 0 30px;

	}

	.rtl #headimg h1  {

		margin: 0 30px 0 0;

	}

	#headimg h1 a {

		color: #fff;

		text-decoration: none;

	}

	#headimg img {

		vertical-align: middle;

	}

	</style>

<?php

}

endif; // twentyfourteen_admin_header_style

if ( ! function_exists( 'twentyfourteen_admin_header_image' ) ) :

/**

 * Create the custom header image markup displayed on the Appearance > Header screen.

 *

 * @see twentyfourteen_custom_header_setup()

 *

 * @since Twenty Fourteen 1.0

 */

function twentyfourteen_admin_header_image() {

?>

	<div id="headimg">

		<?php if ( get_header_image() ) : ?>

		<img src="<?php header_image(); ?>" alt="">

		<?php endif; ?>

		<h1 class="displaying-header-text"><a id="name" style="<?php echo esc_attr( sprintf( 'color: #%s;', get_header_textcolor() ) ); ?>" onclick="return false;" href="<?php echo esc_url( home_url( '/' ) ); ?>" tabindex="-1"><?php bloginfo( 'name' ); ?></a></h1>

	</div>

<?php

}

endif; // twentyfourteen_admin_header_image