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git-svn-id: http://svn.automattic.com/wordpress/trunk@18235 1a063a9b-81f0-0310-95a4-ce76da25c4cd
405 lines
15 KiB
PHP
405 lines
15 KiB
PHP
<?php
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/**
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* Twenty Eleven Theme Options
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*
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* @package WordPress
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* @subpackage Twenty_Eleven
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* @since Twenty Eleven 1.0
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*/
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/**
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* Properly enqueue styles and scripts for our theme options page.
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*
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* This function is attached to the admin_enqueue_scripts action hook.
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*
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* @since Twenty Eleven 1.0
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*
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* @param string $hook_suffix The action passes the current page to the function. We don't
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* do anything if we're not on our theme options page.
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*/
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function twentyeleven_admin_enqueue_scripts( $hook_suffix ) {
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if ( $hook_suffix != 'appearance_page_theme_options' )
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return;
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wp_enqueue_style( 'twentyeleven-theme-options', get_template_directory_uri() . '/inc/theme-options.css', false, '2011-04-28' );
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wp_enqueue_script( 'twentyeleven-theme-options', get_template_directory_uri() . '/inc/theme-options.js', array( 'farbtastic' ), '2011-06-10' );
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wp_enqueue_style( 'farbtastic' );
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}
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add_action( 'admin_enqueue_scripts', 'twentyeleven_admin_enqueue_scripts' );
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/**
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* Register the form setting for our twentyeleven_options array.
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*
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* This function is attached to the admin_init action hook.
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*
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* This call to register_setting() registers a validation callback, twentyeleven_theme_options_validate(),
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* which is used when the option is saved, to ensure that our option values are complete, properly
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* formatted, and safe.
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*
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* We also use this function to add our theme option if it doesn't already exist.
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*
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* @since Twenty Eleven 1.0
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*/
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function twentyeleven_theme_options_init() {
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// If we have no options in the database, let's add them now.
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if ( false === twentyeleven_get_theme_options() )
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add_option( 'twentyeleven_theme_options', twentyeleven_get_default_theme_options() );
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register_setting(
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'twentyeleven_options', // Options group, see settings_fields() call in theme_options_render_page()
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'twentyeleven_theme_options', // Database option, see twentyeleven_get_theme_options()
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'twentyeleven_theme_options_validate' // The sanitization callback, see twentyeleven_theme_options_validate()
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);
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}
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add_action( 'admin_init', 'twentyeleven_theme_options_init' );
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/**
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* Change the capability required to save the 'twentyeleven_options' options group.
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*
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* @see twentyeleven_theme_options_init() First parameter to register_setting() is the name of the options group.
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* @see twentyeleven_theme_options_add_page() The edit_theme_options capability is used for viewing the page.
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*
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* By default, the options groups for all registered settings require the manage_options capability.
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* This filter is required to change our theme options page to edit_theme_options instead.
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* By default, only administrators have either of these capabilities, but the desire here is
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* to allow for finer-grained control for roles and users.
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*
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* @param string $capability The capability used for the page, which is manage_options by default.
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* @return string The capability to actually use.
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*/
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function twentyeleven_option_page_capability( $capability ) {
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return 'edit_theme_options';
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}
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add_filter( 'option_page_capability_twentyeleven_options', 'twentyeleven_option_page_capability' );
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/**
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* Add our theme options page to the admin menu, including some help documentation.
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*
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* This function is attached to the admin_menu action hook.
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*
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* @since Twenty Eleven 1.0
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*/
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function twentyeleven_theme_options_add_page() {
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$theme_page = add_theme_page(
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__( 'Theme Options', 'twentyeleven' ), // Name of page
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__( 'Theme Options', 'twentyeleven' ), // Label in menu
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'edit_theme_options', // Capability required
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'theme_options', // Menu slug, used to uniquely identify the page
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'theme_options_render_page' // Function that renders the options page
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);
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if ( ! $theme_page )
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return;
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$help = '<p>' . __( 'Some themes provide customization options that are grouped together on a Theme Options screen. If you change themes, options may change or disappear, as they are theme-specific. Your current theme, Twenty Eleven, provides the following Theme Options:', 'twentyeleven' ) . '</p>' .
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'<ol>' .
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'<li>' . __( '<strong>Color Scheme</strong>: You can choose a color palette of "Light" (light background with dark text) or "Dark" (dark background with light text) for your site.', 'twentyeleven' ) . '</li>' .
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'<li>' . __( '<strong>Link Color</strong>: You can choose the color used for text links on your site. You can enter the HTML color or hex code, or you can choose visually by clicking the "Select a Color" button to pick from a color wheel.', 'twentyeleven' ) . '</li>' .
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'<li>' . __( '<strong>Default Layout</strong>: You can choose if you want your site’s default layout to have a sidebar on the left, the right, or not at all.', 'twentyeleven' ) . '</li>' .
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'</ol>' .
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'<p>' . __( 'Remember to click "Save Changes" to save any changes you have made to the theme options.', 'twentyeleven' ) . '</p>' .
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'<p><strong>' . __( 'For more information:', 'twentyeleven' ) . '</strong></p>' .
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'<p>' . __( '<a href="http://codex.wordpress.org/Appearance_Theme_Options_Screen" target="_blank">Documentation on Theme Options</a>', 'twentyeleven' ) . '</p>' .
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'<p>' . __( '<a href="http://wordpress.org/support/" target="_blank">Support Forums</a>', 'twentyeleven' ) . '</p>';
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add_contextual_help( $theme_page, $help );
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}
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add_action( 'admin_menu', 'twentyeleven_theme_options_add_page' );
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/**
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* Returns an array of color schemes registered for Twenty Eleven.
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*
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* @since Twenty Eleven 1.0
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*/
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function twentyeleven_color_schemes() {
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$color_scheme_options = array(
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'light' => array(
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'value' => 'light',
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'label' => __( 'Light', 'twentyeleven' ),
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'thumbnail' => get_template_directory_uri() . '/inc/images/light.png',
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'default_link_color' => '#1b8be0',
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),
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'dark' => array(
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'value' => 'dark',
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'label' => __( 'Dark', 'twentyeleven' ),
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'thumbnail' => get_template_directory_uri() . '/inc/images/dark.png',
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'default_link_color' => '#e4741f',
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),
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);
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return apply_filters( 'twentyeleven_color_schemes', $color_scheme_options );
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}
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/**
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* Returns an array of layout options registered for Twenty Eleven.
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*
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* @since Twenty Eleven 1.0
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*/
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function twentyeleven_layouts() {
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$layout_options = array(
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'content-sidebar' => array(
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'value' => 'content-sidebar',
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'label' => __( 'Content on left', 'twentyeleven' ),
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'thumbnail' => get_template_directory_uri() . '/inc/images/content-sidebar.png',
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),
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'sidebar-content' => array(
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'value' => 'sidebar-content',
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'label' => __( 'Content on right', 'twentyeleven' ),
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'thumbnail' => get_template_directory_uri() . '/inc/images/sidebar-content.png',
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),
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'content' => array(
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'value' => 'content',
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'label' => __( 'One-column, no sidebar', 'twentyeleven' ),
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'thumbnail' => get_template_directory_uri() . '/inc/images/content.png',
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),
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);
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return apply_filters( 'twentyeleven_layouts', $layout_options );
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}
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/**
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* Returns the default options for Twenty Eleven.
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*
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* @since Twenty Eleven 1.0
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*/
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function twentyeleven_get_default_theme_options() {
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$default_theme_options = array(
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'color_scheme' => 'light',
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'link_color' => twentyeleven_get_default_link_color( 'light' ),
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'theme_layout' => 'content-sidebar',
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);
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return apply_filters( 'twentyeleven_default_theme_options', $default_theme_options );
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}
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/**
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* Returns the default link color for Twenty Eleven, based on color scheme.
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*
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* @since Twenty Eleven 1.0
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*
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* @param $string $color_scheme Color scheme. Defaults to the active color scheme.
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* @return $string Color.
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*/
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function twentyeleven_get_default_link_color( $color_scheme = null ) {
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if ( null === $color_scheme ) {
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$options = twentyeleven_get_theme_options();
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$color_scheme = $options['color_scheme'];
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}
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$color_schemes = twentyeleven_color_schemes();
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if ( ! isset( $color_schemes[ $color_scheme ] ) )
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return false;
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return $color_schemes[ $color_scheme ]['default_link_color'];
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}
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/**
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* Returns the options array for Twenty Eleven.
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*
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* @since Twenty Eleven 1.0
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*/
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function twentyeleven_get_theme_options() {
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return get_option( 'twentyeleven_theme_options', twentyeleven_get_default_theme_options() );
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}
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/**
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* Returns the options array for Twenty Eleven.
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*
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* @since Twenty Eleven 1.0
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*/
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function theme_options_render_page() {
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?>
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<div class="wrap">
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<?php screen_icon(); ?>
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<h2><?php printf( __( '%s Theme Options', 'twentyeleven' ), get_current_theme() ); ?></h2>
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<?php settings_errors(); ?>
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<form method="post" action="options.php">
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<?php
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settings_fields( 'twentyeleven_options' );
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$options = twentyeleven_get_theme_options();
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$default_options = twentyeleven_get_default_theme_options();
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?>
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<table class="form-table">
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<tr valign="top" class="image-radio-option color-scheme"><th scope="row"><?php _e( 'Color Scheme', 'twentyeleven' ); ?></th>
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<td>
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<fieldset><legend class="screen-reader-text"><span><?php _e( 'Color Scheme', 'twentyeleven' ); ?></span></legend>
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<?php
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foreach ( twentyeleven_color_schemes() as $scheme ) {
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?>
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<div class="layout">
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<label class="description">
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<input type="radio" name="twentyeleven_theme_options[color_scheme]" value="<?php echo esc_attr( $scheme['value'] ); ?>" <?php checked( $options['color_scheme'], $scheme['value'] ); ?> />
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<input type="hidden" id="default-color-<?php echo esc_attr( $scheme['value'] ); ?>" value="<?php echo esc_attr( $scheme['default_link_color'] ); ?>" />
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<span>
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<img src="<?php echo esc_url( $scheme['thumbnail'] ); ?>" width="136" height="122" alt="" />
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<?php echo $scheme['label']; ?>
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</span>
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</label>
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</div>
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<?php
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}
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?>
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</fieldset>
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</td>
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</tr>
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<tr valign="top"><th scope="row"><?php _e( 'Link Color', 'twentyeleven' ); ?></th>
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<td>
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<fieldset><legend class="screen-reader-text"><span><?php _e( 'Link Color', 'twentyeleven' ); ?></span></legend>
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<input type="text" name="twentyeleven_theme_options[link_color]" id="link-color" value="<?php echo esc_attr( $options['link_color'] ); ?>" />
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<a href="#" class="pickcolor hide-if-no-js" id="link-color-example"></a>
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<input type="button" class="pickcolor button hide-if-no-js" value="<?php esc_attr_e( 'Select a Color', 'twentyeleven' ); ?>" />
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<div id="colorPickerDiv" style="z-index: 100; background:#eee; border:1px solid #ccc; position:absolute; display:none;"></div>
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<br />
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<span><?php printf( __( 'Default color: %s', 'twentyeleven' ), '<span id="default-color">' . twentyeleven_get_default_link_color( $options['color_scheme'] ) . '</span>' ); ?></span>
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</fieldset>
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</td>
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</tr>
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<tr valign="top" class="image-radio-option theme-layout"><th scope="row"><?php _e( 'Default Layout', 'twentyeleven' ); ?></th>
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<td>
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<fieldset><legend class="screen-reader-text"><span><?php _e( 'Color Scheme', 'twentyeleven' ); ?></span></legend>
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<?php
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foreach ( twentyeleven_layouts() as $layout ) {
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?>
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<div class="layout">
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<label class="description">
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<input type="radio" name="twentyeleven_theme_options[theme_layout]" value="<?php echo esc_attr( $layout['value'] ); ?>" <?php checked( $options['theme_layout'], $layout['value'] ); ?> />
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<span>
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<img src="<?php echo esc_url( $layout['thumbnail'] ); ?>" width="136" height="122" alt="" />
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<?php echo $layout['label']; ?>
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</span>
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</label>
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</div>
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<?php
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}
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?>
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</fieldset>
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</td>
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</tr>
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</table>
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<?php submit_button(); ?>
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</form>
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</div>
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<?php
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}
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/**
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* Sanitize and validate form input. Accepts an array, return a sanitized array.
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*
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* @see twentyeleven_theme_options_init()
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* @todo set up Reset Options action
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*
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* @since Twenty Eleven 1.0
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*/
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function twentyeleven_theme_options_validate( $input ) {
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$output = $defaults = twentyeleven_get_default_theme_options();
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// Color scheme must be in our array of color scheme options
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if ( isset( $input['color_scheme'] ) && array_key_exists( $input['color_scheme'], twentyeleven_color_schemes() ) )
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$output['color_scheme'] = $input['color_scheme'];
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// Our defaults for the link color may have changed, based on the color scheme.
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$output['link_color'] = $defaults['link_color'] = twentyeleven_get_default_link_color( $output['color_scheme'] );
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// Link color must be 3 or 6 hexadecimal characters
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if ( isset( $input['link_color'] ) && preg_match( '/^#?([a-f0-9]{3}){1,2}$/i', $input['link_color'] ) )
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$output['link_color'] = '#' . strtolower( ltrim( $input['link_color'], '#' ) );
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// Theme layout must be in our array of theme layout options
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if ( isset( $input['theme_layout'] ) && array_key_exists( $input['theme_layout'], twentyeleven_layouts() ) )
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$output['theme_layout'] = $input['theme_layout'];
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return apply_filters( 'twentyeleven_theme_options_validate', $output, $input, $defaults );
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}
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/**
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* Enqueue the styles for the current color scheme.
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*
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* @since Twenty Eleven 1.0
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*/
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function twentyeleven_enqueue_color_scheme() {
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$options = twentyeleven_get_theme_options();
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$color_scheme = $options['color_scheme'];
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if ( 'dark' == $color_scheme )
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wp_enqueue_style( 'dark', get_template_directory_uri() . '/colors/dark.css', array(), null );
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do_action( 'twentyeleven_enqueue_color_scheme', $color_scheme );
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}
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add_action( 'wp_enqueue_scripts', 'twentyeleven_enqueue_color_scheme' );
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/**
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* Add a style block to the theme for the current link color.
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*
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* This function is attached to the wp_head action hook.
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*
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* @since Twenty Eleven 1.0
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*/
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function twentyeleven_print_link_color_style() {
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$options = twentyeleven_get_theme_options();
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$link_color = $options['link_color'];
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$default_options = twentyeleven_get_default_theme_options();
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// Don't do anything if the current link color is the default.
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if ( $default_options['link_color'] == $link_color )
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return;
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?>
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<style>
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/* Link color */
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a,
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#site-title a:focus,
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#site-title a:hover,
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#site-title a:active,
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.entry-title a:hover,
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.entry-title a:focus,
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.entry-title a:active,
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.widget_twentyeleven_ephemera .comments-link a:hover,
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section.recent-posts .other-recent-posts a[rel="bookmark"]:hover,
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section.recent-posts .other-recent-posts .comments-link a:hover,
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.format-image footer.entry-meta a:hover,
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#site-generator a:hover {
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color: <?php echo $link_color; ?>;
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}
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section.recent-posts .other-recent-posts .comments-link a:hover {
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border-color: <?php echo $link_color; ?>;
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}
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article.feature-image.small .entry-summary p a:hover,
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.entry-header .comments-link a:hover,
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.entry-header .comments-link a:focus,
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.entry-header .comments-link a:active,
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.feature-slider a.active {
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background: <?php echo $link_color; ?>;
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}
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</style>
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<?php
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}
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add_action( 'wp_head', 'twentyeleven_print_link_color_style' );
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/**
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* Adds Twenty Eleven layout classes to the array of body classes.
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*
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* @since Twenty Eleven 1.0
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*/
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function twentyeleven_layout_classes( $existing_classes ) {
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$options = twentyeleven_get_theme_options();
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$current_layout = $options['theme_layout'];
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if ( in_array( $current_layout, array( 'content-sidebar', 'sidebar-content' ) ) )
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$classes = array( 'two-column' );
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else
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$classes = array( 'one-column' );
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$classes[] = $current_layout;
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$classes = apply_filters( 'twentyeleven_layout_classes', $classes, $current_layout );
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return array_merge( $existing_classes, $classes );
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}
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add_filter( 'body_class', 'twentyeleven_layout_classes' );
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