wp/wp-content/themes/twentytwelve/inc/custom-header.php
changeset 8 c7c34916027a
parent 7 cf61fcea0001
child 9 177826044cd9
equal deleted inserted replaced
7:cf61fcea0001 8:c7c34916027a
     1 <?php
       
     2 /**
       
     3  * Implement an optional custom header for Twenty Twelve
       
     4  *
       
     5  * See https://codex.wordpress.org/Custom_Headers
       
     6  *
       
     7  * @package WordPress
       
     8  * @subpackage Twenty_Twelve
       
     9  * @since Twenty Twelve 1.0
       
    10  */
       
    11 
       
    12 /**
       
    13  * Set up the WordPress core custom header arguments and settings.
       
    14  *
       
    15  * @uses add_theme_support() to register support for 3.4 and up.
       
    16  * @uses twentytwelve_header_style() to style front end.
       
    17  * @uses twentytwelve_admin_header_style() to style wp-admin form.
       
    18  * @uses twentytwelve_admin_header_image() to add custom markup to wp-admin form.
       
    19  *
       
    20  * @since Twenty Twelve 1.0
       
    21  */
       
    22 function twentytwelve_custom_header_setup() {
       
    23 	$args = array(
       
    24 		// Text color and image (empty to use none).
       
    25 		'default-text-color'     => '515151',
       
    26 		'default-image'          => '',
       
    27 
       
    28 		// Set height and width, with a maximum value for the width.
       
    29 		'height'                 => 250,
       
    30 		'width'                  => 960,
       
    31 		'max-width'              => 2000,
       
    32 
       
    33 		// Support flexible height and width.
       
    34 		'flex-height'            => true,
       
    35 		'flex-width'             => true,
       
    36 
       
    37 		// Random image rotation off by default.
       
    38 		'random-default'         => false,
       
    39 
       
    40 		// Callbacks for styling the header and the admin preview.
       
    41 		'wp-head-callback'       => 'twentytwelve_header_style',
       
    42 		'admin-head-callback'    => 'twentytwelve_admin_header_style',
       
    43 		'admin-preview-callback' => 'twentytwelve_admin_header_image',
       
    44 	);
       
    45 
       
    46 	add_theme_support( 'custom-header', $args );
       
    47 }
       
    48 add_action( 'after_setup_theme', 'twentytwelve_custom_header_setup' );
       
    49 
       
    50 /**
       
    51  * Load our special font CSS file.
       
    52  *
       
    53  * @since Twenty Twelve 1.2
       
    54  */
       
    55 function twentytwelve_custom_header_fonts() {
       
    56 	$font_url = twentytwelve_get_font_url();
       
    57 	if ( ! empty( $font_url ) ) {
       
    58 		wp_enqueue_style( 'twentytwelve-fonts', esc_url_raw( $font_url ), array(), null );
       
    59 	}
       
    60 }
       
    61 add_action( 'admin_print_styles-appearance_page_custom-header', 'twentytwelve_custom_header_fonts' );
       
    62 
       
    63 /**
       
    64  * Style the header text displayed on the blog.
       
    65  *
       
    66  * get_header_textcolor() options: 515151 is default, hide text (returns 'blank'), or any hex value.
       
    67  *
       
    68  * @since Twenty Twelve 1.0
       
    69  */
       
    70 function twentytwelve_header_style() {
       
    71 	$text_color = get_header_textcolor();
       
    72 
       
    73 	// If no custom options for text are set, let's bail
       
    74 	if ( $text_color == get_theme_support( 'custom-header', 'default-text-color' ) ) {
       
    75 		return;
       
    76 	}
       
    77 
       
    78 	// If we get this far, we have custom styles.
       
    79 	?>
       
    80 	<style type="text/css" id="twentytwelve-header-css">
       
    81 	<?php
       
    82 		// Has the text been hidden?
       
    83 	if ( ! display_header_text() ) :
       
    84 	?>
       
    85 	.site-title,
       
    86 	.site-description {
       
    87 		position: absolute;
       
    88 		clip: rect(1px 1px 1px 1px); /* IE7 */
       
    89 		clip: rect(1px, 1px, 1px, 1px);
       
    90 	}
       
    91 	<?php
       
    92 	// If the user has set a custom color for the text, use that.
       
    93 		else :
       
    94 	?>
       
    95 		.site-header h1 a,
       
    96 		.site-header h2 {
       
    97 			color: #<?php echo $text_color; ?>;
       
    98 		}
       
    99 	<?php endif; ?>
       
   100 	</style>
       
   101 	<?php
       
   102 }
       
   103 
       
   104 /**
       
   105  * Style the header image displayed on the Appearance > Header admin panel.
       
   106  *
       
   107  * @since Twenty Twelve 1.0
       
   108  */
       
   109 function twentytwelve_admin_header_style() {
       
   110 ?>
       
   111 	<style type="text/css" id="twentytwelve-admin-header-css">
       
   112 	.appearance_page_custom-header #headimg {
       
   113 		border: none;
       
   114 		font-family: "Open Sans", Helvetica, Arial, sans-serif;
       
   115 	}
       
   116 	#headimg h1,
       
   117 	#headimg h2 {
       
   118 		line-height: 1.84615;
       
   119 		margin: 0;
       
   120 		padding: 0;
       
   121 	}
       
   122 	#headimg h1 {
       
   123 		font-size: 26px;
       
   124 	}
       
   125 	#headimg h1 a {
       
   126 		color: #515151;
       
   127 		text-decoration: none;
       
   128 	}
       
   129 	#headimg h1 a:hover {
       
   130 		color: #21759b !important; /* Has to override custom inline style. */
       
   131 	}
       
   132 	#headimg h2 {
       
   133 		color: #757575;
       
   134 		font-size: 13px;
       
   135 		margin-bottom: 24px;
       
   136 	}
       
   137 	#headimg img {
       
   138 		max-width: <?php echo get_theme_support( 'custom-header', 'max-width' ); ?>px;
       
   139 	}
       
   140 	</style>
       
   141 <?php
       
   142 }
       
   143 
       
   144 /**
       
   145  * Output markup to be displayed on the Appearance > Header admin panel.
       
   146  *
       
   147  * This callback overrides the default markup displayed there.
       
   148  *
       
   149  * @since Twenty Twelve 1.0
       
   150  */
       
   151 function twentytwelve_admin_header_image() {
       
   152 	$style = 'color: #' . get_header_textcolor() . ';';
       
   153 	if ( ! display_header_text() ) {
       
   154 		$style = 'display: none;';
       
   155 	}
       
   156 	?>
       
   157 	<div id="headimg">
       
   158 		<h1 class="displaying-header-text"><a id="name" style="<?php echo esc_attr( $style ); ?>" onclick="return false;" href="<?php echo esc_url( home_url( '/' ) ); ?>"><?php bloginfo( 'name' ); ?></a></h1>
       
   159 		<h2 id="desc" class="displaying-header-text" style="<?php echo esc_attr( $style ); ?>"><?php bloginfo( 'description' ); ?></h2>
       
   160 		<?php
       
   161 		$header_image = get_header_image();
       
   162 		if ( ! empty( $header_image ) ) :
       
   163 		?>
       
   164 			<img src="<?php echo esc_url( $header_image ); ?>" class="header-image" width="<?php echo esc_attr( get_custom_header()->width ); ?>" height="<?php echo esc_attr( get_custom_header()->height ); ?>" alt="" />
       
   165 		<?php endif; ?>
       
   166 	</div>
       
   167 <?php
       
   168 }