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<?php |
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|
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/** |
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* Embed recipe 'cards' in post, with basic styling and print functionality |
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* |
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* To Do |
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* - defaults settings |
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* - basic styles/themecolor styles |
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* - validation/sanitization |
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* - print styles |
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*/ |
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class Jetpack_Recipes { |
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|
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private $scripts_and_style_included = false; |
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|
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function __construct() { |
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add_action( 'init', array( $this, 'action_init' ) ); |
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|
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// Add itemprop to allowed tags for wp_kses_post, so we can use it for better Schema compliance. |
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global $allowedposttags; |
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$tags = array( 'li', 'ol', 'img' ); |
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foreach ( $tags as $tag ) { |
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if ( ! is_array( $allowedposttags[ $tag ] ) ) { |
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$allowedposttags[ $tag ] = array(); |
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} |
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$allowedposttags[ $tag ]['itemprop'] = array(); |
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} |
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} |
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|
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function action_init() { |
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// Enqueue styles if [recipe] exists |
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add_action( 'wp_head', array( $this, 'add_scripts' ), 1 ); |
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|
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// Render [recipe], along with other shortcodes that can be nested within. |
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add_shortcode( 'recipe', array( $this, 'recipe_shortcode' ) ); |
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add_shortcode( 'recipe-notes', array( $this, 'recipe_notes_shortcode' ) ); |
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add_shortcode( 'recipe-ingredients', array( $this, 'recipe_ingredients_shortcode' ) ); |
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add_shortcode( 'recipe-directions', array( $this, 'recipe_directions_shortcode' ) ); |
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} |
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|
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/** |
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* Enqueue scripts and styles |
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*/ |
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function add_scripts() { |
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if ( empty( $GLOBALS['posts'] ) || ! is_array( $GLOBALS['posts'] ) ) { |
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return; |
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} |
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|
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foreach ( $GLOBALS['posts'] as $p ) { |
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if ( has_shortcode( $p->post_content, 'recipe' ) ) { |
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$this->scripts_and_style_included = true; |
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break; |
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} |
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} |
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|
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if ( ! $this->scripts_and_style_included ) { |
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return; |
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} |
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|
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if ( is_rtl() ) { |
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wp_enqueue_style( 'jetpack-recipes-style', plugins_url( '/css/rtl/recipes-rtl.css', __FILE__ ), array(), '20130919' ); |
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} else { |
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wp_enqueue_style( 'jetpack-recipes-style', plugins_url( '/css/recipes.css', __FILE__ ), array(), '20130919' ); |
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} |
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|
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wp_add_inline_style( 'jetpack-recipes-style', self::themecolor_styles() ); // add $themecolors-defined styles |
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|
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wp_enqueue_script( 'jetpack-recipes-printthis', plugins_url( '/js/recipes-printthis.js', __FILE__ ), array( 'jquery' ), '20131230' ); |
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wp_enqueue_script( 'jetpack-recipes-js', plugins_url( '/js/recipes.js', __FILE__ ), array( 'jquery', 'jetpack-recipes-printthis' ), '20131230' ); |
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|
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$title_var = wp_title( '|', false, 'right' ); |
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$print_css_var = plugins_url( '/css/recipes-print.css', __FILE__ ); |
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|
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wp_localize_script( 'jetpack-recipes-js', 'jetpack_recipes_vars', array( 'pageTitle' => $title_var, 'loadCSS' => $print_css_var ) ); |
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} |
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|
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/** |
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* Our [recipe] shortcode. |
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* Prints recipe data styled to look good on *any* theme. |
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* |
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* @return string HTML for recipe shortcode. |
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*/ |
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static function recipe_shortcode( $atts, $content = '' ) { |
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$atts = shortcode_atts( |
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array( |
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'title' => '', //string |
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'servings' => '', //intval |
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'time' => '', //string |
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'difficulty' => '', //string |
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'print' => '', //string |
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'image' => '', //string |
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'description' => '', //string |
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), $atts, 'recipe' |
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); |
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|
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return self::recipe_shortcode_html( $atts, $content ); |
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} |
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|
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/** |
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* The recipe output |
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* |
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* @return string HTML output |
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*/ |
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static function recipe_shortcode_html( $atts, $content = '' ) { |
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// Add itemprop to allowed tags for wp_kses_post, so we can use it for better Schema compliance. |
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global $allowedtags; |
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$allowedtags['li'] = array( 'itemprop' => array () ); |
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|
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$html = '<div class="hrecipe jetpack-recipe" itemscope itemtype="http://schema.org/Recipe">'; |
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|
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// Print the recipe title if exists |
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if ( '' !== $atts['title'] ) { |
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$html .= '<h3 class="jetpack-recipe-title" itemprop="name">' . esc_html( $atts['title'] ) . '</h3>'; |
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} |
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|
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// Print the recipe meta if exists |
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if ( '' !== $atts['servings'] || '' != $atts['time'] || '' != $atts['difficulty'] || '' != $atts['print'] ) { |
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$html .= '<ul class="jetpack-recipe-meta">'; |
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|
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if ( '' !== $atts['servings'] ) { |
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$html .= sprintf( |
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'<li class="jetpack-recipe-servings" itemprop="recipeYield"><strong>%1$s: </strong>%2$s</li>', |
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esc_html_x( 'Servings', 'recipe', 'jetpack' ), |
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esc_html( $atts['servings'] ) |
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); |
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} |
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|
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if ( '' !== $atts['time'] ) { |
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$html .= sprintf( |
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'<li class="jetpack-recipe-time" itemprop="totalTime"><strong>%1$s: </strong>%2$s</li>', |
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esc_html_x( 'Time', 'recipe', 'jetpack' ), |
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esc_html( $atts['time'] ) |
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); |
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} |
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|
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if ( '' !== $atts['difficulty'] ) { |
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$html .= sprintf( |
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'<li class="jetpack-recipe-difficulty"><strong>%1$s: </strong>%2$s</li>', |
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esc_html_x( 'Difficulty', 'recipe', 'jetpack' ), |
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esc_html( $atts['difficulty'] ) |
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); |
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} |
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|
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if ( 'false' !== $atts['print'] ) { |
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$html .= sprintf( |
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'<li class="jetpack-recipe-print"><a href="#">%1$s</a></li>', |
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esc_html_x( 'Print', 'recipe', 'jetpack' ) |
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); |
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} |
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|
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$html .= '</ul>'; |
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} |
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|
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// Output the image, if we have one. |
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if ( '' !== $atts['image'] ) { |
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$html .= sprintf( |
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'<img class="jetpack-recipe-image" itemprop="thumbnailUrl" src="%1$s" />', |
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esc_url( $atts['image'] ) |
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); |
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} |
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|
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// Output the description, if we have one. |
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if ( '' !== $atts['description'] ) { |
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$html .= sprintf( |
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'<p class="jetpack-recipe-description">%1$s</p>', |
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esc_html( $atts['description'] ) |
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); |
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} |
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|
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// Print content between codes |
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$html .= '<div class="jetpack-recipe-content">' . do_shortcode( $content ) . '</div>'; |
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|
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// Close it up |
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$html .= '</div>'; |
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|
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// If there is a recipe within a recipe, remove the shortcode |
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if ( has_shortcode( $html, 'recipe' ) ) { |
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remove_shortcode( 'recipe' ); |
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} |
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|
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// Sanitize html |
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$html = wp_kses_post( $html ); |
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|
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// Return the HTML block |
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return $html; |
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} |
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|
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/** |
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* Our [recipe-notes] shortcode. |
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* Outputs notes, styled in a div. |
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* |
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* @return string HTML for recipe notes shortcode. |
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*/ |
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static function recipe_notes_shortcode( $atts, $content = '' ) { |
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$atts = shortcode_atts( array( |
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'title' => '', //string |
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), $atts, 'recipe-notes' ); |
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|
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$html =''; |
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|
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// Print a title if one exists. |
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if ( '' !== $atts['title'] ) { |
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$html .= '<h4 class="jetpack-recipe-notes-title">' . esc_html( $atts['title'] ) . '</h4>'; |
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} |
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|
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$html .= '<div class="jetpack-recipe-notes">'; |
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|
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// Format content using list functionality, if desired. |
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$html .= self::output_list_content( $content, 'notes' ); |
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|
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$html .= '</div>'; |
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|
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// Sanitize html. |
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$html = wp_kses_post( $html ); |
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|
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// Return the HTML block. |
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return $html; |
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} |
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|
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/** |
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* Our [recipe-ingredients] shortcode. |
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* Outputs notes, styled in a div. |
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* |
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* @return string HTML for recipe ingredients shortcode. |
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*/ |
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static function recipe_ingredients_shortcode( $atts, $content = '' ) { |
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$atts = shortcode_atts( array( |
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'title' => esc_html_x( 'Ingredients', 'recipe', 'jetpack' ), //string |
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), $atts, 'recipe-ingredients' ); |
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|
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$html = '<div class="jetpack-recipe-ingredients">'; |
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|
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// Print a title unless the user has opted to exclude it. |
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if ( 'false' !== $atts['title'] ) { |
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$html .= '<h4 class="jetpack-recipe-ingredients-title">' . esc_html( $atts['title'] ) . '</h4>'; |
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} |
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|
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// Format content using list functionality. |
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$html .= self::output_list_content( $content, 'ingredients' ); |
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|
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$html .= '</div>'; |
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|
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// Sanitize html. |
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$html = wp_kses_post( $html ); |
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|
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// Return the HTML block. |
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return $html; |
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} |
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|
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/** |
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* Reusable function to check for shortened formatting. |
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* Basically, users can create lists with the following shorthand: |
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* - item one |
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* - item two |
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* - item three |
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* And we'll magically convert it to a list. This has the added benefit |
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* of including itemprops for the recipe schema. |
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* |
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* @return string content formatted as a list item |
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*/ |
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static function output_list_content( $content, $type ) { |
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$html =''; |
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|
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switch ( $type ) { |
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case 'directions' : |
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$list_item_replacement = '<li class="jetpack-recipe-directions">${1}</li>'; |
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$itemprop = ' itemprop="recipeInstructions"'; |
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$listtype = 'ol'; |
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break; |
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case 'ingredients' : |
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$list_item_replacement = '<li class="jetpack-recipe-ingredient">${1}</li>'; |
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$itemprop = ' itemprop="recipeIngredient"'; |
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$listtype = 'ul'; |
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break; |
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default: |
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$list_item_replacement = '<li class="jetpack-recipe-notes">${1}</li>'; |
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$itemprop = ''; |
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$listtype = 'ul'; |
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} |
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|
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// Check to see if the user is trying to use shortened formatting. |
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if ( |
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strpos( $content, '–' ) !== false || |
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strpos( $content, '—' ) !== false || |
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strpos( $content, '-' ) !== false || |
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strpos( $content, '*' ) !== false || |
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strpos( $content, '#' ) !== false || |
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strpos( $content, '–' ) !== false || // ndash |
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strpos( $content, '—' ) !== false || // mdash |
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preg_match( '/\d+\.\s/', $content ) |
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) { |
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// Remove breaks and extra whitespace |
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$content = str_replace( "<br />\n", "\n", $content ); |
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$content = trim( $content ); |
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|
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$ul_pattern = '/(?:^|\n|\<p\>)+(?:[\-–—]+|\–|\—|\*)+\h+(.*)/mi'; |
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$ol_pattern = '/(?:^|\n|\<p\>)+(?:\d+\.|#+)+\h+(.*)/mi'; |
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|
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preg_match_all( $ul_pattern, $content, $ul_matches ); |
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preg_match_all( $ol_pattern, $content, $ol_matches ); |
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|
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if ( 0 !== count( $ul_matches[0] ) || 0 !== count( $ol_matches[0] ) ) { |
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|
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if ( 0 !== count( $ol_matches[0] ) ) { |
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$listtype = 'ol'; |
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$list_item_pattern = $ol_pattern; |
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} else { |
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$listtype = 'ul'; |
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$list_item_pattern = $ul_pattern; |
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} |
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$html .= '<' . $listtype . $itemprop . '>'; |
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$html .= preg_replace( $list_item_pattern, $list_item_replacement, $content ); |
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$html .= '</' . $listtype . '>'; |
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|
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// Strip out any empty <p> tags and stray </p> tags, because those are just silly. |
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$empty_p_pattern = '/(<p>)*\s*<\/p>/mi'; |
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$html = preg_replace( $empty_p_pattern, '', $html ); |
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} else { |
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$html .= do_shortcode( $content ); |
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} |
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} else { |
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$html .= do_shortcode( $content ); |
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} |
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|
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// Return our formatted content. |
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return $html; |
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} |
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|
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/** |
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* Our [recipe-directions] shortcode. |
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* Outputs notes, styled in a div. |
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* |
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* @return string HTML for recipe notes shortcode. |
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*/ |
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static function recipe_directions_shortcode( $atts, $content = '' ) { |
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$atts = shortcode_atts( array( |
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'title' => esc_html_x( 'Directions', 'recipe', 'jetpack' ), //string |
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), $atts, 'recipe-directions' ); |
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|
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$html = '<div class="jetpack-recipe-directions">'; |
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|
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// Print a title unless the user has specified to exclude it. |
| 343 |
if ( 'false' !== $atts['title'] ) { |
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$html .= '<h4 class="jetpack-recipe-directions-title">' . esc_html( $atts['title'] ) . '</h4>'; |
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} |
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|
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// Format content using list functionality. |
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$html .= self::output_list_content( $content, 'directions' ); |
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|
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$html .= '</div>'; |
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|
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// Sanitize html. |
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$html = wp_kses_post( $html ); |
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|
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// Return the HTML block. |
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return $html; |
| 357 |
} |
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|
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/** |
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* Use $themecolors array to style the Recipes shortcode |
| 361 |
* |
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* @print style block |
| 363 |
* @return string $style |
| 364 |
*/ |
| 365 |
function themecolor_styles() { |
| 366 |
global $themecolors; |
| 367 |
$style = ''; |
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|
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if ( isset( $themecolors ) ) { |
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$style .= '.jetpack-recipe { border-color: #' . esc_attr( $themecolors['border'] ) . '; }'; |
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$style .= '.jetpack-recipe-title { border-bottom-color: #' . esc_attr( $themecolors['link'] ) . '; }'; |
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} |
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|
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return $style; |
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} |
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|
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} |
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|
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new Jetpack_Recipes(); |
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|
