263 lines
7.6 KiB
PHP
263 lines
7.6 KiB
PHP
<?php
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/**
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* Twenty Twelve Theme Options
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*
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* @package WordPress
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* @subpackage Twenty_Twelve
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* @since Twenty Twelve 1.0
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*/
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class Twenty_Twelve_Options {
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/**
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* The option value in the database will be based on get_stylesheet()
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* so child themes don't share the parent theme's option value.
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*
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* @access public
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* @var string
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*/
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public $option_key = 'twentytwelve_theme_options';
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/**
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* Holds our options.
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*
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* @access public
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* @var array
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*/
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public $options = array();
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/**
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* Constructor.
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*
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* @access public
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*
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* @return Twenty_Twelve_Options
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*/
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public function __construct() {
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// Set option key based on get_stylesheet()
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if ( 'twentytwelve' != get_stylesheet() )
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$this->option_key = get_stylesheet() . '_theme_options';
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add_action( 'admin_init', array( $this, 'options_init' ) );
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add_action( 'admin_menu', array( $this, 'add_page' ) );
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add_action( 'customize_register', array( $this, 'customize_register' ) );
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add_action( 'customize_preview_init', array( $this, 'customize_preview_js' ) );
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}
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/**
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* Registers the form setting for our options array.
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*
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* This function is attached to the admin_init action hook.
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*
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* This call to register_setting() registers a validation callback, validate(),
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* which is used when the option is saved, to ensure that our option values are properly
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* formatted, and safe.
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*
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* @access public
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*
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* @return void
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*/
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public function options_init() {
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// Load our options for use in any method.
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$this->options = $this->get_theme_options();
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// Register our option group.
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register_setting(
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'twentytwelve_options', // Options group, see settings_fields() call in render_page()
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$this->option_key, // Database option, see get_theme_options()
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array( $this, 'validate' ) // The sanitization callback, see validate()
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);
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// Register our settings field group.
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add_settings_section(
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'general', // Unique identifier for the settings section
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'', // Section title (we don't want one)
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'__return_false', // Section callback (we don't want anything)
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'theme_options' // Menu slug, used to uniquely identify the page; see add_page()
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);
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// Register our individual settings fields.
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add_settings_field(
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'enable_fonts', // Unique identifier for the field for this section
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__( 'Enable Web Fonts', 'twentytwelve' ), // Setting field label
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array( $this, 'settings_field_enable_fonts' ), // Function that renders the settings field
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'theme_options', // Menu slug, used to uniquely identify the page; see add_page()
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'general' // Settings section. Same as the first argument in the add_settings_section() above
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);
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}
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/**
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* Adds our theme options page to the admin menu.
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*
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* This function is attached to the admin_menu action hook.
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*
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* @access public
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*
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* @return void
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*/
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public function add_page() {
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$theme_page = add_theme_page(
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__( 'Theme Options', 'twentytwelve' ), // Name of page
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__( 'Theme Options', 'twentytwelve' ), // 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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array( $this, 'render_page' ) // Function that renders the options page
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);
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}
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/**
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* Returns the default options.
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*
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* @access public
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*
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* @return array
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*/
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public function get_default_theme_options() {
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$default_theme_options = array(
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'enable_fonts' => false,
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);
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return apply_filters( 'twentytwelve_default_theme_options', $default_theme_options );
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}
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/**
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* Returns the options array.
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*
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* @access public
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*
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* @return array
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*/
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public function get_theme_options() {
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return get_option( $this->option_key, $this->get_default_theme_options() );
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}
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/**
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* Renders the enable fonts checkbox setting field.
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*
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* @access public
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*
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* @return void
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*/
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public function settings_field_enable_fonts() {
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$options = $this->options;
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?>
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<label for="enable-fonts">
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<input type="checkbox" name="<?php echo $this->option_key; ?>[enable_fonts]" id="enable-fonts" <?php checked( $options['enable_fonts'] ); ?> />
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<?php _e( 'Enable the Open Sans typeface.', 'twentytwelve' ); ?>
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</label>
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<?php
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}
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/**
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* Displays the theme options page.
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*
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* @uses get_current_theme() for back compat, fallback for < 3.4
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* @access public
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*
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* @return void
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*/
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public function render_page() {
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?>
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<div class="wrap">
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<?php screen_icon(); ?>
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<?php $theme_name = function_exists( 'wp_get_theme' ) ? wp_get_theme() : get_current_theme(); ?>
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<h2><?php printf( __( '%s Theme Options', 'twentytwelve' ), $theme_name ); ?></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( 'twentytwelve_options' );
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do_settings_sections( 'theme_options' );
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submit_button();
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?>
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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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* Sanitizes and validates form input.
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*
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* @see options_init()
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* @access public
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* @param array $input
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*
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* @return array The validated data.
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*/
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public function validate( $input ) {
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$output = $defaults = $this->get_default_theme_options();
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// The enable fonts checkbox should boolean true or false
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if ( ! isset( $input['enable_fonts'] ) )
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$input['enable_fonts'] = false;
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$output['enable_fonts'] = ( false != $input['enable_fonts'] ? true : false );
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return apply_filters( 'twentytwelve_options_validate', $output, $input, $defaults );
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}
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/**
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* Implements Twenty Twelve theme options into Theme Customizer.
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*
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* @since Twenty Twelve 1.0
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* @access public
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* @param WP_Customize_Manager $wp_customize Theme Customizer object.
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*
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* @return void
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*/
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public function customize_register( $wp_customize ) {
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// Add postMessage support for site title and tagline
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$wp_customize->get_setting( 'blogname' )->transport = 'postMessage';
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$wp_customize->get_setting( 'blogdescription' )->transport = 'postMessage';
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// Enable Web Fonts
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$wp_customize->add_section( $this->option_key . '_enable_fonts', array(
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'title' => __( 'Fonts', 'twentytwelve' ),
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'priority' => 35,
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) );
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$defaults = $this->get_default_theme_options();
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$wp_customize->add_setting( $this->option_key . '[enable_fonts]', array(
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'default' => $defaults['enable_fonts'],
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'type' => 'option',
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'capability' => 'edit_theme_options',
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'transport' => 'postMessage',
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) );
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$wp_customize->add_control( $this->option_key . '_enable_fonts', array(
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'label' => __( 'Enable the Open Sans typeface.', 'twentytwelve' ),
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'section' => $this->option_key . '_enable_fonts',
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'settings' => $this->option_key . '[enable_fonts]',
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'type' => 'checkbox',
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) );
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}
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/**
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* Binds JS handlers to make Theme Customizer preview reload changes asynchronously.
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*
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* @since Twenty Twelve 1.0
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* @access public
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*
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* @return void
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*/
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public function customize_preview_js() {
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wp_enqueue_script( 'twentytwelve-customizer', get_template_directory_uri() . '/js/theme-customizer.js', array( 'customize-preview' ), '20120802', true );
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wp_localize_script( 'twentytwelve-customizer', 'twentytwelve_customizer', array(
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'option_key' => $this->option_key,
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'link' => $this->custom_fonts_url(),
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) );
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}
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/**
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* Creates path to load fonts CSS file with correct protocol.
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*
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* @since Twenty Twelve 1.0
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* @access public
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*
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* @return string Path to load fonts CSS.
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*/
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public function custom_fonts_url() {
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$protocol = is_ssl() ? 'https' : 'http';
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return $protocol . '://fonts.googleapis.com/css?family=Open+Sans:400italic,700italic,400,700';
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}
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}
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