WordPress/wp-content/themes/twentyeleven/inc/theme-options/theme-options.php
iandstewart 90451d9052 Twenty Eleven: functions.php cleanup and introduction of theme options; see #17198
* Cleanup functions.php, adding comments and function_exists() checks following Twenty Ten's example
* Theme option for choosing an alternate (dark) color scheme. It currently only loads a placeholder CSS file with dark styles to follow.
* Theme option for selecting a link color that loads an internal style block for resetting link colors. An updated style.css will follow to take advantage of this.
* Theme options for selecting an alternate layout. Adds a class to the body element. An updated style.css will follow to take advantage of this.


git-svn-id: http://svn.automattic.com/wordpress/trunk@17721 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2011-04-26 22:52:18 +00:00

316 lines
9.2 KiB
PHP

<?php
/**
* Twenty Eleven Theme Options
*
* @package WordPress
* @subpackage Twenty Eleven
*/
add_action( 'admin_init', 'theme_options_init' );
add_action( 'admin_menu', 'theme_options_add_page' );
/**
* Add theme options page styles and scripts
*/
wp_register_style( 'twentyeleven-theme-options', get_template_directory_uri() . '/inc/theme-options/theme-options.css', '', '0.1' );
wp_register_script( 'twentyeleven-theme-options', get_template_directory_uri() . '/inc/theme-options/theme-options.js' );
if ( isset( $_GET['page'] ) && $_GET['page'] == 'theme_options' ) {
wp_enqueue_style( 'twentyeleven-theme-options' );
wp_enqueue_script( 'twentyeleven-theme-options' );
wp_enqueue_script( 'farbtastic' );
wp_enqueue_style( 'farbtastic' );
}
/**
* Init plugin options to white list our options
*/
function theme_options_init(){
register_setting( 'twentyeleven_options', 'twentyeleven_theme_options', 'twentyeleven_theme_options_validate' );
}
/**
* Load up the menu page
*/
function theme_options_add_page() {
add_theme_page( __( 'Theme Options', 'twentyeleven' ), __( 'Theme Options', 'twentyeleven' ), 'edit_theme_options', 'theme_options', 'theme_options_do_page' );
}
/**
* Return array for our color schemes
*/
function twentyeleven_color_schemes() {
$color_scheme_options = array(
'light' => array(
'value' => 'light',
'label' => __( 'Light', 'twentyeleven' )
),
'dark' => array(
'value' => 'dark',
'label' => __( 'Dark', 'twentyeleven' )
),
);
return $color_scheme_options;
}
/**
* Return array for our layout options
*/
function twentyeleven_layouts() {
$layout_options = array(
'content-sidebar' => array(
'value' => 'content-sidebar',
'label' => __( 'Content on left', 'twentyeleven' ),
),
'sidebar-content' => array(
'value' => 'sidebar-content',
'label' => __( 'Content on right', 'twentyeleven' )
),
'content' => array(
'value' => 'content',
'label' => __( 'One-column, no Sidebar', 'twentyeleven' )
),
);
return $layout_options;
}
/**
* Return the current Twenty Eleven theme options, with default values as fallback
*/
function twentyeleven_get_theme_options() {
$defaults = array(
'color_scheme' => 'light',
'link_color' => '1b8be0',
'theme_layout' => 'content-sidebar',
);
$options = get_option( 'twentyeleven_theme_options', $defaults );
return $options;
}
/**
* Create the options page
*/
function theme_options_do_page() {
if ( ! isset( $_REQUEST['settings-updated'] ) )
$_REQUEST['settings-updated'] = false;
?>
<div class="wrap">
<?php screen_icon(); echo "<h2>" . get_current_theme() . __( ' Theme Options', 'twentyeleven' ) . "</h2>"; ?>
<?php if ( false !== $_REQUEST['settings-updated'] ) : ?>
<div class="updated fade"><p><strong><?php _e( 'Options saved', 'twentyeleven' ); ?></strong></p></div>
<?php endif; ?>
<form method="post" action="options.php">
<?php settings_fields( 'twentyeleven_options' ); ?>
<?php $options = twentyeleven_get_theme_options(); ?>
<table class="form-table">
<?php
/**
* Color Scheme Options
*/
?>
<tr valign="top" class="image-radio-option"><th scope="row"><?php _e( 'Color Scheme', 'twentyeleven' ); ?></th>
<td>
<fieldset><legend class="screen-reader-text"><span><?php _e( 'Color Scheme', 'twentyeleven' ); ?></span></legend>
<?php
if ( ! isset( $checked ) )
$checked = '';
foreach ( twentyeleven_color_schemes() as $option ) {
$radio_setting = $options['color_scheme'];
if ( '' != $radio_setting ) {
if ( $options['color_scheme'] == $option['value'] ) {
$checked = "checked=\"checked\"";
} else {
$checked = '';
}
}
?>
<div class="layout">
<label class="description">
<input type="radio" name="twentyeleven_theme_options[color_scheme]" value="<?php esc_attr_e( $option['value'] ); ?>" <?php echo $checked; ?> />
<span>
<img src="<?php echo get_template_directory_uri(); ?>/inc/theme-options/images/<?php echo $option['value']; ?>.png"/>
<?php echo $option['label']; ?>
</span>
</label>
</div>
<?php
}
?>
</fieldset>
</td>
</tr>
<?php
/**
* Link Color Options
*/
?>
<tr valign="top"><th scope="row"><?php _e( 'Link Color', 'twentyeleven' ); ?></th>
<td>
<fieldset><legend class="screen-reader-text"><span><?php _e( 'Link Color', 'twentyeleven' ); ?></span></legend>
<input type="text" name="twentyeleven_theme_options[link_color]" id="link-color" value="<?php esc_attr_e( $options['link_color'] ); ?>" />
<a class="hide-if-no-js" href="#" id="pickcolor"><?php _e( 'Select a Color', 'twentyeleven' ); ?></a>
<div id="colorPickerDiv" style="z-index: 100; background:#eee; border:1px solid #ccc; position:absolute; display:none;"></div>
<br />
<small class="description"><?php printf( __( 'Default color: %s', 'twentyeleven' ), '#1b8be0' ); ?></small>
</fieldset>
</td>
</tr>
<?php
/**
* Layout Options
*/
?>
<tr valign="top" class="image-radio-option"><th scope="row"><?php _e( 'Layout', 'twentyeleven' ); ?></th>
<td>
<fieldset><legend class="screen-reader-text"><span><?php _e( 'Color Scheme', 'twentyeleven' ); ?></span></legend>
<?php
if ( ! isset( $checked ) )
$checked = '';
foreach ( twentyeleven_layouts() as $option ) {
$radio_setting = $options['theme_layout'];
if ( '' != $radio_setting ) {
if ( $options['theme_layout'] == $option['value'] ) {
$checked = "checked=\"checked\"";
} else {
$checked = '';
}
}
?>
<div class="layout">
<label class="description">
<input type="radio" name="twentyeleven_theme_options[theme_layout]" value="<?php esc_attr_e( $option['value'] ); ?>" <?php echo $checked; ?> />
<span>
<img src="<?php echo get_template_directory_uri(); ?>/inc/theme-options/images/<?php echo $option['value']; ?>.png"/>
<?php echo $option['label']; ?>
</span>
</label>
</div>
<?php
}
?>
</fieldset>
</td>
</tr>
</table>
<p class="submit">
<input type="submit" class="button-primary" value="<?php _e( 'Save Options', 'twentyeleven' ); ?>" />
</p>
</form>
</div>
<?php
}
/**
* Sanitize and validate input. Accepts an array, return a sanitized array.
*/
function twentyeleven_theme_options_validate( $input ) {
// todo get defaults, and use insteadd of null for fallback
// could also be used to trigger a Reset Options action
// Our color scheme option must actually be in our array of color scheme options
if ( ! isset( $input['color_scheme'] ) )
$input['color_scheme'] = null;
if ( ! array_key_exists( $input['color_scheme'], twentyeleven_color_schemes() ) )
$input['color_scheme'] = null;
// Our link color option must be safe text with no HTML tags
$input['link_color'] = wp_filter_nohtml_kses( $input['link_color'] );
// Our theme layout option must actually be in our array of theme layout options
if ( ! isset( $input['theme_layout'] ) )
$input['theme_layout'] = null;
if ( ! array_key_exists( $input['theme_layout'], twentyeleven_layouts() ) )
$input['theme_layout'] = null;
return $input;
}
/**
* Returns the current Twenty Eleven color scheme as selected in the theme options
*
* @since Twenty Eleven 1.0
*/
function twentyeleven_current_color_scheme() {
$options = twentyeleven_get_theme_options();
return $options['color_scheme'];
}
/**
* Register our color schemes and add them to the queue
*/
function twentyeleven_color_registrar() {
$color_scheme = twentyeleven_current_color_scheme();
if ( 'dark' == $color_scheme ) {
wp_register_style( 'dark', get_template_directory_uri() . '/colors/dark.css', null, null );
wp_enqueue_style( 'dark' );
}
}
if ( ! is_admin() )
add_action( 'wp_print_styles', 'twentyeleven_color_registrar' );
/**
* Returns the current Twenty Eleven layout as selected in the theme options
*
* @since Twenty Eleven 1.0
*/
function twentyeleven_current_layout() {
$options = twentyeleven_get_theme_options();
$current_layout = $options['theme_layout'];
$two_columns = array( 'content-sidebar', 'sidebar-content' );
if ( in_array( $current_layout, $two_columns ) )
return 'two-column ' . $current_layout;
else
return 'one-column ' . $current_layout;
}
/**
* Add an internal style block for the link color to wp_head()
*/
function twentyeleven_link_color() {
$options = twentyeleven_get_theme_options();
$current_link_color = $options['link_color'];
// Is the link color just the default color?
if ( '1b8be0' == $current_link_color ) :
return; // we don't need to do anything then
else :
?>
<style>
/* Link color */
a,
.entry-title a:hover {
color: <?php echo $current_link_color ?>;
}
</style>
<?php
endif;
}
add_action( 'wp_head', 'twentyeleven_link_color' );
/**
* Adds twentyeleven_current_layout() to the array of body classes
*
* @since Twenty Eleven 1.0
*/
function twentyeleven_layout_class( $classes ) {
$classes[] = twentyeleven_current_layout();
return $classes;
}
add_filter( 'body_class', 'twentyeleven_layout_class' );