3
* Twenty Eleven functions and definitions
5
* Sets up the theme and provides some helper functions. Some helper functions
6
* are used in the theme as custom template tags. Others are attached to action and
7
* filter hooks in WordPress to change core functionality.
9
* The first function, twentyeleven_setup(), sets up the theme by registering support
10
* for various features in WordPress, such as post thumbnails, navigation menus, and the like.
12
* When using a child theme (see http://codex.wordpress.org/Theme_Development and
13
* http://codex.wordpress.org/Child_Themes), you can override certain functions
14
* (those wrapped in a function_exists() call) by defining them first in your child theme's
15
* functions.php file. The child theme's functions.php file is included before the parent
16
* theme's file, so the child theme functions would be used.
18
* Functions that are not pluggable (not wrapped in function_exists()) are instead attached
19
* to a filter or action hook. The hook can be removed by using remove_action() or
20
* remove_filter() and you can attach your own function to the hook.
22
* We can remove the parent theme's hook only after it is attached, which means we need to
23
* wait until setting up the child theme:
26
* add_action( 'after_setup_theme', 'my_child_theme_setup' );
27
* function my_child_theme_setup() {
28
* // We are providing our own filter for excerpt_length (or using the unfiltered value)
29
* remove_filter( 'excerpt_length', 'twentyeleven_excerpt_length' );
34
* For more information on hooks, actions, and filters, see http://codex.wordpress.org/Plugin_API.
37
* @subpackage Twenty_Eleven
38
* @since Twenty Eleven 1.0
42
* Set the content width based on the theme's design and stylesheet.
44
if ( ! isset( $content_width ) )
48
* Tell WordPress to run twentyeleven_setup() when the 'after_setup_theme' hook is run.
50
add_action( 'after_setup_theme', 'twentyeleven_setup' );
52
if ( ! function_exists( 'twentyeleven_setup' ) ):
54
* Sets up theme defaults and registers support for various WordPress features.
56
* Note that this function is hooked into the after_setup_theme hook, which runs
57
* before the init hook. The init hook is too late for some features, such as indicating
58
* support post thumbnails.
60
* To override twentyeleven_setup() in a child theme, add your own twentyeleven_setup to your child theme's
63
* @uses load_theme_textdomain() For translation/localization support.
64
* @uses add_editor_style() To style the visual editor.
65
* @uses add_theme_support() To add support for post thumbnails, automatic feed links, custom headers
66
* and backgrounds, and post formats.
67
* @uses register_nav_menus() To add support for navigation menus.
68
* @uses register_default_headers() To register the default custom header images provided with the theme.
69
* @uses set_post_thumbnail_size() To set a custom post thumbnail size.
71
* @since Twenty Eleven 1.0
73
function twentyeleven_setup() {
75
/* Make Twenty Eleven available for translation.
76
* Translations can be added to the /languages/ directory.
77
* If you're building a theme based on Twenty Eleven, use a find and replace
78
* to change 'twentyeleven' to the name of your theme in all the template files.
80
load_theme_textdomain( 'twentyeleven', get_template_directory() . '/languages' );
82
// This theme styles the visual editor with editor-style.css to match the theme style.
85
// Load up our theme options page and related code.
86
require( get_template_directory() . '/inc/theme-options.php' );
88
// Grab Twenty Eleven's Ephemera widget.
89
require( get_template_directory() . '/inc/widgets.php' );
91
// Add default posts and comments RSS feed links to <head>.
92
add_theme_support( 'automatic-feed-links' );
94
// This theme uses wp_nav_menu() in one location.
95
register_nav_menu( 'primary', __( 'Primary Menu', 'twentyeleven' ) );
97
// Add support for a variety of post formats
98
add_theme_support( 'post-formats', array( 'aside', 'link', 'gallery', 'status', 'quote', 'image' ) );
100
$theme_options = twentyeleven_get_theme_options();
101
if ( 'dark' == $theme_options['color_scheme'] )
102
$default_background_color = '1d1d1d';
104
$default_background_color = 'e2e2e2';
106
// Add support for custom backgrounds.
107
add_theme_support( 'custom-background', array(
108
// Let WordPress know what our default background color is.
109
// This is dependent on our current color scheme.
110
'default-color' => $default_background_color,
113
// This theme uses Featured Images (also known as post thumbnails) for per-post/per-page Custom Header images
114
add_theme_support( 'post-thumbnails' );
116
// Add support for custom headers.
117
$custom_header_support = array(
118
// The default header text color.
119
'default-text-color' => '000',
120
// The height and width of our custom header.
121
'width' => apply_filters( 'twentyeleven_header_image_width', 1000 ),
122
'height' => apply_filters( 'twentyeleven_header_image_height', 288 ),
123
// Support flexible heights.
124
'flex-height' => true,
125
// Random image rotation by default.
126
'random-default' => true,
127
// Callback for styling the header.
128
'wp-head-callback' => 'twentyeleven_header_style',
129
// Callback for styling the header preview in the admin.
130
'admin-head-callback' => 'twentyeleven_admin_header_style',
131
// Callback used to display the header preview in the admin.
132
'admin-preview-callback' => 'twentyeleven_admin_header_image',
135
add_theme_support( 'custom-header', $custom_header_support );
137
if ( ! function_exists( 'get_custom_header' ) ) {
138
// This is all for compatibility with versions of WordPress prior to 3.4.
139
define( 'HEADER_TEXTCOLOR', $custom_header_support['default-text-color'] );
140
define( 'HEADER_IMAGE', '' );
141
define( 'HEADER_IMAGE_WIDTH', $custom_header_support['width'] );
142
define( 'HEADER_IMAGE_HEIGHT', $custom_header_support['height'] );
143
add_custom_image_header( $custom_header_support['wp-head-callback'], $custom_header_support['admin-head-callback'], $custom_header_support['admin-preview-callback'] );
144
add_custom_background();
147
// We'll be using post thumbnails for custom header images on posts and pages.
148
// We want them to be the size of the header image that we just defined
149
// Larger images will be auto-cropped to fit, smaller ones will be ignored. See header.php.
150
set_post_thumbnail_size( $custom_header_support['width'], $custom_header_support['height'], true );
152
// Add Twenty Eleven's custom image sizes.
153
// Used for large feature (header) images.
154
add_image_size( 'large-feature', $custom_header_support['width'], $custom_header_support['height'], true );
155
// Used for featured posts if a large-feature doesn't exist.
156
add_image_size( 'small-feature', 500, 300 );
158
// Default custom headers packaged with the theme. %s is a placeholder for the theme template directory URI.
159
register_default_headers( array(
161
'url' => '%s/images/headers/wheel.jpg',
162
'thumbnail_url' => '%s/images/headers/wheel-thumbnail.jpg',
163
/* translators: header image description */
164
'description' => __( 'Wheel', 'twentyeleven' )
167
'url' => '%s/images/headers/shore.jpg',
168
'thumbnail_url' => '%s/images/headers/shore-thumbnail.jpg',
169
/* translators: header image description */
170
'description' => __( 'Shore', 'twentyeleven' )
173
'url' => '%s/images/headers/trolley.jpg',
174
'thumbnail_url' => '%s/images/headers/trolley-thumbnail.jpg',
175
/* translators: header image description */
176
'description' => __( 'Trolley', 'twentyeleven' )
178
'pine-cone' => array(
179
'url' => '%s/images/headers/pine-cone.jpg',
180
'thumbnail_url' => '%s/images/headers/pine-cone-thumbnail.jpg',
181
/* translators: header image description */
182
'description' => __( 'Pine Cone', 'twentyeleven' )
184
'chessboard' => array(
185
'url' => '%s/images/headers/chessboard.jpg',
186
'thumbnail_url' => '%s/images/headers/chessboard-thumbnail.jpg',
187
/* translators: header image description */
188
'description' => __( 'Chessboard', 'twentyeleven' )
191
'url' => '%s/images/headers/lanterns.jpg',
192
'thumbnail_url' => '%s/images/headers/lanterns-thumbnail.jpg',
193
/* translators: header image description */
194
'description' => __( 'Lanterns', 'twentyeleven' )
197
'url' => '%s/images/headers/willow.jpg',
198
'thumbnail_url' => '%s/images/headers/willow-thumbnail.jpg',
199
/* translators: header image description */
200
'description' => __( 'Willow', 'twentyeleven' )
203
'url' => '%s/images/headers/hanoi.jpg',
204
'thumbnail_url' => '%s/images/headers/hanoi-thumbnail.jpg',
205
/* translators: header image description */
206
'description' => __( 'Hanoi Plant', 'twentyeleven' )
210
endif; // twentyeleven_setup
212
if ( ! function_exists( 'twentyeleven_header_style' ) ) :
214
* Styles the header image and text displayed on the blog
216
* @since Twenty Eleven 1.0
218
function twentyeleven_header_style() {
219
$text_color = get_header_textcolor();
221
// If no custom options for text are set, let's bail.
222
if ( $text_color == HEADER_TEXTCOLOR )
225
// If we get this far, we have custom styles. Let's do this.
227
<style type="text/css">
229
// Has the text been hidden?
230
if ( 'blank' == $text_color ) :
234
position: absolute !important;
235
clip: rect(1px 1px 1px 1px); /* IE6, IE7 */
236
clip: rect(1px, 1px, 1px, 1px);
239
// If the user has set a custom color for the text use that
244
color: #<?php echo $text_color; ?> !important;
250
endif; // twentyeleven_header_style
252
if ( ! function_exists( 'twentyeleven_admin_header_style' ) ) :
254
* Styles the header image displayed on the Appearance > Header admin panel.
256
* Referenced via add_theme_support('custom-header') in twentyeleven_setup().
258
* @since Twenty Eleven 1.0
260
function twentyeleven_admin_header_style() {
262
<style type="text/css">
263
.appearance_page_custom-header #headimg {
268
font-family: "Helvetica Neue", Arial, Helvetica, "Nimbus Sans L", sans-serif;
276
text-decoration: none;
284
// If the user has set a custom color for the text use that
285
if ( get_header_textcolor() != HEADER_TEXTCOLOR ) :
289
color: #<?php echo get_header_textcolor(); ?>;
300
endif; // twentyeleven_admin_header_style
302
if ( ! function_exists( 'twentyeleven_admin_header_image' ) ) :
304
* Custom header image markup displayed on the Appearance > Header admin panel.
306
* Referenced via add_theme_support('custom-header') in twentyeleven_setup().
308
* @since Twenty Eleven 1.0
310
function twentyeleven_admin_header_image() { ?>
313
$color = get_header_textcolor();
314
$image = get_header_image();
315
if ( $color && $color != 'blank' )
316
$style = ' style="color:#' . $color . '"';
318
$style = ' style="display:none"';
320
<h1><a id="name"<?php echo $style; ?> onclick="return false;" href="<?php echo esc_url( home_url( '/' ) ); ?>"><?php bloginfo( 'name' ); ?></a></h1>
321
<div id="desc"<?php echo $style; ?>><?php bloginfo( 'description' ); ?></div>
322
<?php if ( $image ) : ?>
323
<img src="<?php echo esc_url( $image ); ?>" alt="" />
327
endif; // twentyeleven_admin_header_image
330
* Sets the post excerpt length to 40 words.
332
* To override this length in a child theme, remove the filter and add your own
333
* function tied to the excerpt_length filter hook.
335
function twentyeleven_excerpt_length( $length ) {
338
add_filter( 'excerpt_length', 'twentyeleven_excerpt_length' );
340
if ( ! function_exists( 'twentyeleven_continue_reading_link' ) ) :
342
* Returns a "Continue Reading" link for excerpts
344
function twentyeleven_continue_reading_link() {
345
return ' <a href="'. esc_url( get_permalink() ) . '">' . __( 'Continue reading <span class="meta-nav">→</span>', 'twentyeleven' ) . '</a>';
347
endif; // twentyeleven_continue_reading_link
350
* Replaces "[...]" (appended to automatically generated excerpts) with an ellipsis and twentyeleven_continue_reading_link().
352
* To override this in a child theme, remove the filter and add your own
353
* function tied to the excerpt_more filter hook.
355
function twentyeleven_auto_excerpt_more( $more ) {
356
return ' …' . twentyeleven_continue_reading_link();
358
add_filter( 'excerpt_more', 'twentyeleven_auto_excerpt_more' );
361
* Adds a pretty "Continue Reading" link to custom post excerpts.
363
* To override this link in a child theme, remove the filter and add your own
364
* function tied to the get_the_excerpt filter hook.
366
function twentyeleven_custom_excerpt_more( $output ) {
367
if ( has_excerpt() && ! is_attachment() ) {
368
$output .= twentyeleven_continue_reading_link();
372
add_filter( 'get_the_excerpt', 'twentyeleven_custom_excerpt_more' );
375
* Get our wp_nav_menu() fallback, wp_page_menu(), to show a home link.
377
function twentyeleven_page_menu_args( $args ) {
378
if ( ! isset( $args['show_home'] ) )
379
$args['show_home'] = true;
382
add_filter( 'wp_page_menu_args', 'twentyeleven_page_menu_args' );
385
* Register our sidebars and widgetized areas. Also register the default Epherma widget.
387
* @since Twenty Eleven 1.0
389
function twentyeleven_widgets_init() {
391
register_widget( 'Twenty_Eleven_Ephemera_Widget' );
393
register_sidebar( array(
394
'name' => __( 'Main Sidebar', 'twentyeleven' ),
396
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
397
'after_widget' => "</aside>",
398
'before_title' => '<h3 class="widget-title">',
399
'after_title' => '</h3>',
402
register_sidebar( array(
403
'name' => __( 'Showcase Sidebar', 'twentyeleven' ),
405
'description' => __( 'The sidebar for the optional Showcase Template', 'twentyeleven' ),
406
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
407
'after_widget' => "</aside>",
408
'before_title' => '<h3 class="widget-title">',
409
'after_title' => '</h3>',
412
register_sidebar( array(
413
'name' => __( 'Footer Area One', 'twentyeleven' ),
415
'description' => __( 'An optional widget area for your site footer', 'twentyeleven' ),
416
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
417
'after_widget' => "</aside>",
418
'before_title' => '<h3 class="widget-title">',
419
'after_title' => '</h3>',
422
register_sidebar( array(
423
'name' => __( 'Footer Area Two', 'twentyeleven' ),
425
'description' => __( 'An optional widget area for your site footer', 'twentyeleven' ),
426
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
427
'after_widget' => "</aside>",
428
'before_title' => '<h3 class="widget-title">',
429
'after_title' => '</h3>',
432
register_sidebar( array(
433
'name' => __( 'Footer Area Three', 'twentyeleven' ),
435
'description' => __( 'An optional widget area for your site footer', 'twentyeleven' ),
436
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
437
'after_widget' => "</aside>",
438
'before_title' => '<h3 class="widget-title">',
439
'after_title' => '</h3>',
442
add_action( 'widgets_init', 'twentyeleven_widgets_init' );
444
if ( ! function_exists( 'twentyeleven_content_nav' ) ) :
446
* Display navigation to next/previous pages when applicable
448
function twentyeleven_content_nav( $html_id ) {
451
if ( $wp_query->max_num_pages > 1 ) : ?>
452
<nav id="<?php echo esc_attr( $html_id ); ?>">
453
<h3 class="assistive-text"><?php _e( 'Post navigation', 'twentyeleven' ); ?></h3>
454
<div class="nav-previous"><?php next_posts_link( __( '<span class="meta-nav">←</span> Older posts', 'twentyeleven' ) ); ?></div>
455
<div class="nav-next"><?php previous_posts_link( __( 'Newer posts <span class="meta-nav">→</span>', 'twentyeleven' ) ); ?></div>
456
</nav><!-- #nav-above -->
459
endif; // twentyeleven_content_nav
462
* Return the URL for the first link found in the post content.
464
* @since Twenty Eleven 1.0
465
* @return string|bool URL or false when no link is present.
467
function twentyeleven_url_grabber() {
468
if ( ! preg_match( '/<a\s[^>]*?href=[\'"](.+?)[\'"]/is', get_the_content(), $matches ) )
471
return esc_url_raw( $matches[1] );
475
* Count the number of footer sidebars to enable dynamic classes for the footer
477
function twentyeleven_footer_sidebar_class() {
480
if ( is_active_sidebar( 'sidebar-3' ) )
483
if ( is_active_sidebar( 'sidebar-4' ) )
486
if ( is_active_sidebar( 'sidebar-5' ) )
504
echo 'class="' . $class . '"';
507
if ( ! function_exists( 'twentyeleven_comment' ) ) :
509
* Template for comments and pingbacks.
511
* To override this walker in a child theme without modifying the comments template
512
* simply create your own twentyeleven_comment(), and that function will be used instead.
514
* Used as a callback by wp_list_comments() for displaying the comments.
516
* @since Twenty Eleven 1.0
518
function twentyeleven_comment( $comment, $args, $depth ) {
519
$GLOBALS['comment'] = $comment;
520
switch ( $comment->comment_type ) :
524
<li class="post pingback">
525
<p><?php _e( 'Pingback:', 'twentyeleven' ); ?> <?php comment_author_link(); ?><?php edit_comment_link( __( 'Edit', 'twentyeleven' ), '<span class="edit-link">', '</span>' ); ?></p>
530
<li <?php comment_class(); ?> id="li-comment-<?php comment_ID(); ?>">
531
<article id="comment-<?php comment_ID(); ?>" class="comment">
532
<footer class="comment-meta">
533
<div class="comment-author vcard">
536
if ( '0' != $comment->comment_parent )
539
echo get_avatar( $comment, $avatar_size );
541
/* translators: 1: comment author, 2: date and time */
542
printf( __( '%1$s on %2$s <span class="says">said:</span>', 'twentyeleven' ),
543
sprintf( '<span class="fn">%s</span>', get_comment_author_link() ),
544
sprintf( '<a href="%1$s"><time datetime="%2$s">%3$s</time></a>',
545
esc_url( get_comment_link( $comment->comment_ID ) ),
546
get_comment_time( 'c' ),
547
/* translators: 1: date, 2: time */
548
sprintf( __( '%1$s at %2$s', 'twentyeleven' ), get_comment_date(), get_comment_time() )
553
<?php edit_comment_link( __( 'Edit', 'twentyeleven' ), '<span class="edit-link">', '</span>' ); ?>
554
</div><!-- .comment-author .vcard -->
556
<?php if ( $comment->comment_approved == '0' ) : ?>
557
<em class="comment-awaiting-moderation"><?php _e( 'Your comment is awaiting moderation.', 'twentyeleven' ); ?></em>
563
<div class="comment-content"><?php comment_text(); ?></div>
566
<?php comment_reply_link( array_merge( $args, array( 'reply_text' => __( 'Reply <span>↓</span>', 'twentyeleven' ), 'depth' => $depth, 'max_depth' => $args['max_depth'] ) ) ); ?>
567
</div><!-- .reply -->
568
</article><!-- #comment-## -->
574
endif; // ends check for twentyeleven_comment()
576
if ( ! function_exists( 'twentyeleven_posted_on' ) ) :
578
* Prints HTML with meta information for the current post-date/time and author.
579
* Create your own twentyeleven_posted_on to override in a child theme
581
* @since Twenty Eleven 1.0
583
function twentyeleven_posted_on() {
584
printf( __( '<span class="sep">Posted on </span><a href="%1$s" title="%2$s" rel="bookmark"><time class="entry-date" datetime="%3$s">%4$s</time></a><span class="by-author"> <span class="sep"> by </span> <span class="author vcard"><a class="url fn n" href="%5$s" title="%6$s" rel="author">%7$s</a></span></span>', 'twentyeleven' ),
585
esc_url( get_permalink() ),
586
esc_attr( get_the_time() ),
587
esc_attr( get_the_date( 'c' ) ),
588
esc_html( get_the_date() ),
589
esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ),
590
esc_attr( sprintf( __( 'View all posts by %s', 'twentyeleven' ), get_the_author() ) ),
597
* Adds two classes to the array of body classes.
598
* The first is if the site has only had one author with published posts.
599
* The second is if a singular post being displayed
601
* @since Twenty Eleven 1.0
603
function twentyeleven_body_classes( $classes ) {
605
if ( function_exists( 'is_multi_author' ) && ! is_multi_author() )
606
$classes[] = 'single-author';
608
if ( is_singular() && ! is_home() && ! is_page_template( 'showcase.php' ) && ! is_page_template( 'sidebar-page.php' ) )
609
$classes[] = 'singular';
613
add_filter( 'body_class', 'twentyeleven_body_classes' );
added
removed
wp-content/themes/twentyeleven/functions.php
