Automattic /
jetpack
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| 1 | <?php |
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| 2 | |||
| 3 | /** |
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| 4 | * Embed recipe 'cards' in post, with basic styling and print functionality |
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| 5 | * |
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| 6 | * To Do |
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| 7 | * - defaults settings |
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| 8 | * - basic styles/themecolor styles |
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| 9 | * - validation/sanitization |
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| 10 | * - print styles |
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| 11 | */ |
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| 12 | class Jetpack_Recipes { |
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| 13 | |||
| 14 | private $scripts_and_style_included = false; |
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| 15 | |||
| 16 | function __construct() { |
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| 17 | add_action( 'init', array( $this, 'action_init' ) ); |
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| 18 | |||
| 19 | add_filter( 'wp_kses_allowed_html', array( $this, 'add_recipes_kses_rules' ), 10, 2 ); |
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| 20 | } |
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| 21 | |||
| 22 | /** |
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| 23 | * Add Schema-specific attributes to our allowed tags in wp_kses, |
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| 24 | * so we can have better Schema.org compliance. |
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| 25 | * |
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| 26 | * @param array $allowedtags Array of allowed HTML tags in recipes. |
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| 27 | * @param array $context Context to judge allowed tags by. |
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| 28 | */ |
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| 29 | function add_recipes_kses_rules( $allowedtags, $context ) { |
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| 30 | if ( in_array( $context, array( '', 'post', 'data' ) ) ) : |
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| 31 | // Create an array of all the tags we'd like to add the itemprop attribute to. |
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| 32 | $tags = array( 'li', 'ol', 'ul', 'img', 'p', 'h3', 'time' ); |
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| 33 | foreach ( $tags as $tag ) { |
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| 34 | $allowedtags = $this->add_kses_rule( |
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| 35 | $allowedtags, |
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| 36 | $tag, |
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| 37 | array( |
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| 38 | 'class' => array(), |
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| 39 | 'itemprop' => array(), |
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| 40 | 'datetime' => array(), |
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| 41 | ) |
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| 42 | ); |
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| 43 | } |
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| 44 | |||
| 45 | // Allow itemscope and itemtype for divs. |
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| 46 | $allowedtags = $this->add_kses_rule( |
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| 47 | $allowedtags, |
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| 48 | 'div', |
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| 49 | array( |
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| 50 | 'class' => array(), |
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| 51 | 'itemscope' => array(), |
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| 52 | 'itemtype' => array(), |
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| 53 | ) |
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| 54 | ); |
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| 55 | endif; |
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| 56 | |||
| 57 | return $allowedtags; |
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| 58 | } |
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| 59 | |||
| 60 | /** |
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| 61 | * Function to add a new property rule to our kses array. |
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| 62 | * Used by add_recipe_kses_rules() above. |
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| 63 | * |
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| 64 | * @param array $all_tags Array of allowed HTML tags in recipes. |
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| 65 | * @param string $tag New HTML tag to add to the array of allowed HTML. |
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| 66 | * @param array $rules Array of allowed attributes for that HTML tag. |
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| 67 | */ |
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| 68 | private function add_kses_rule( $all_tags, $tag, $rules ) { |
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| 69 | |||
| 70 | // If the tag doesn't already exist, add it. |
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| 71 | if ( ! isset( $all_tags[ $tag ] ) ) { |
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| 72 | $all_tags[ $tag ] = array(); |
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| 73 | } |
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| 74 | |||
| 75 | // Merge the new tags with existing tags. |
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| 76 | $all_tags[ $tag ] = array_merge( $all_tags[ $tag ], $rules ); |
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| 77 | |||
| 78 | return $all_tags; |
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| 79 | } |
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| 80 | |||
| 81 | /** |
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| 82 | * Register our shortcode and enqueue necessary files. |
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| 83 | */ |
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| 84 | function action_init() { |
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| 85 | // Enqueue styles if [recipe] exists. |
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| 86 | add_action( 'wp_head', array( $this, 'add_scripts' ), 1 ); |
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| 87 | |||
| 88 | // Render [recipe], along with other shortcodes that can be nested within. |
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| 89 | add_shortcode( 'recipe', array( $this, 'recipe_shortcode' ) ); |
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| 90 | add_shortcode( 'recipe-notes', array( $this, 'recipe_notes_shortcode' ) ); |
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| 91 | add_shortcode( 'recipe-ingredients', array( $this, 'recipe_ingredients_shortcode' ) ); |
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| 92 | add_shortcode( 'recipe-directions', array( $this, 'recipe_directions_shortcode' ) ); |
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| 93 | } |
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| 94 | |||
| 95 | /** |
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| 96 | * Enqueue scripts and styles |
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| 97 | */ |
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| 98 | function add_scripts() { |
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| 99 | if ( empty( $GLOBALS['posts'] ) || ! is_array( $GLOBALS['posts'] ) ) { |
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| 100 | return; |
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| 101 | } |
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| 102 | |||
| 103 | View Code Duplication | foreach ( $GLOBALS['posts'] as $p ) { |
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| 104 | if ( has_shortcode( $p->post_content, 'recipe' ) ) { |
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| 105 | $this->scripts_and_style_included = true; |
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| 106 | break; |
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| 107 | } |
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| 108 | } |
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| 109 | |||
| 110 | if ( ! $this->scripts_and_style_included ) { |
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| 111 | return; |
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| 112 | } |
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| 113 | |||
| 114 | if ( is_rtl() ) { |
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| 115 | wp_enqueue_style( 'jetpack-recipes-style', plugins_url( '/css/rtl/recipes-rtl.css', __FILE__ ), array(), '20130919' ); |
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| 116 | } else { |
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| 117 | wp_enqueue_style( 'jetpack-recipes-style', plugins_url( '/css/recipes.css', __FILE__ ), array(), '20130919' ); |
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| 118 | } |
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| 119 | |||
| 120 | // add $themecolors-defined styles. |
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| 121 | wp_add_inline_style( 'jetpack-recipes-style', self::themecolor_styles() ); |
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| 122 | |||
| 123 | wp_enqueue_script( 'jetpack-recipes-printthis', plugins_url( '/js/recipes-printthis.js', __FILE__ ), array( 'jquery' ), '20170202' ); |
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| 124 | wp_enqueue_script( 'jetpack-recipes-js', plugins_url( '/js/recipes.js', __FILE__ ), array( 'jquery', 'jetpack-recipes-printthis' ), '20131230' ); |
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| 125 | |||
| 126 | $title_var = wp_title( '|', false, 'right' ); |
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| 127 | $print_css_var = plugins_url( '/css/recipes-print.css', __FILE__ ); |
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| 128 | |||
| 129 | wp_localize_script( |
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| 130 | 'jetpack-recipes-js', |
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| 131 | 'jetpack_recipes_vars', |
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| 132 | array( |
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| 133 | 'pageTitle' => $title_var, |
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| 134 | 'loadCSS' => $print_css_var, |
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| 135 | ) |
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| 136 | ); |
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| 137 | } |
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| 138 | |||
| 139 | /** |
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| 140 | * Our [recipe] shortcode. |
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| 141 | * Prints recipe data styled to look good on *any* theme. |
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| 142 | * |
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| 143 | * @param array $atts Array of shortcode attributes. |
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| 144 | * @param string $content Post content. |
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| 145 | * |
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| 146 | * @return string HTML for recipe shortcode. |
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| 147 | */ |
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| 148 | static function recipe_shortcode( $atts, $content = '' ) { |
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| 149 | $atts = shortcode_atts( |
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| 150 | array( |
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| 151 | 'title' => '', // string. |
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| 152 | 'servings' => '', // intval. |
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| 153 | 'time' => '', // string. |
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| 154 | 'difficulty' => '', // string. |
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| 155 | 'print' => '', // string. |
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| 156 | 'source' => '', // string. |
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| 157 | 'sourceurl' => '', // string. |
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| 158 | 'image' => '', // string. |
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| 159 | 'description' => '', // string. |
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| 160 | ), $atts, 'recipe' |
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| 161 | ); |
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| 162 | |||
| 163 | return self::recipe_shortcode_html( $atts, $content ); |
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| 164 | } |
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| 165 | |||
| 166 | /** |
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| 167 | * The recipe output |
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| 168 | * |
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| 169 | * @param array $atts Array of shortcode attributes. |
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| 170 | * @param string $content Post content. |
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| 171 | * |
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| 172 | * @return string HTML output |
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| 173 | */ |
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| 174 | static function recipe_shortcode_html( $atts, $content = '' ) { |
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| 175 | |||
| 176 | $html = '<div class="hrecipe jetpack-recipe" itemscope itemtype="https://schema.org/Recipe">'; |
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| 177 | |||
| 178 | // Print the recipe title if exists. |
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| 179 | if ( '' !== $atts['title'] ) { |
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| 180 | $html .= '<h3 class="jetpack-recipe-title" itemprop="name">' . esc_html( $atts['title'] ) . '</h3>'; |
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| 181 | } |
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| 182 | |||
| 183 | // Print the recipe meta if exists. |
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| 184 | if ( '' !== $atts['servings'] || '' != $atts['time'] || '' != $atts['difficulty'] || '' != $atts['print'] ) { |
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| 185 | $html .= '<ul class="jetpack-recipe-meta">'; |
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| 186 | |||
| 187 | View Code Duplication | if ( '' !== $atts['servings'] ) { |
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| 188 | $html .= sprintf( |
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| 189 | '<li class="jetpack-recipe-servings" itemprop="recipeYield"><strong>%1$s: </strong>%2$s</li>', |
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| 190 | esc_html_x( 'Servings', 'recipe', 'jetpack' ), |
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| 191 | esc_html( $atts['servings'] ) |
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| 192 | ); |
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| 193 | } |
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| 194 | |||
| 195 | if ( '' !== $atts['time'] ) { |
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| 196 | // Get a time that's supported by Schema.org. |
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| 197 | $duration = WPCOM_JSON_API_Date::format_duration( $atts['time'] ); |
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| 198 | // If no duration can be calculated, let's output what the user provided. |
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| 199 | if ( empty( $duration ) ) { |
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| 200 | $duration = $atts['time']; |
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| 201 | } |
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| 202 | |||
| 203 | $html .= sprintf( |
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| 204 | '<li class="jetpack-recipe-time"> |
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| 205 | <time itemprop="totalTime" datetime="%3$s"><strong>%1$s: </strong>%2$s</time> |
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| 206 | </li>', |
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| 207 | esc_html_x( 'Time', 'recipe', 'jetpack' ), |
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| 208 | esc_html( $atts['time'] ), |
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| 209 | esc_attr( $duration ) |
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| 210 | ); |
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| 211 | } |
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| 212 | |||
| 213 | View Code Duplication | if ( '' !== $atts['difficulty'] ) { |
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| 214 | $html .= sprintf( |
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| 215 | '<li class="jetpack-recipe-difficulty"><strong>%1$s: </strong>%2$s</li>', |
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| 216 | esc_html_x( 'Difficulty', 'recipe', 'jetpack' ), |
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| 217 | esc_html( $atts['difficulty'] ) |
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| 218 | ); |
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| 219 | } |
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| 220 | |||
| 221 | if ( '' !== $atts['source'] ) { |
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| 222 | $html .= sprintf( |
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| 223 | '<li class="jetpack-recipe-source"><strong>%1$s: </strong>', |
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| 224 | esc_html_x( 'Source', 'recipe', 'jetpack' ) |
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| 225 | ); |
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| 226 | |||
| 227 | if ( '' !== $atts['sourceurl'] ) : |
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| 228 | // Show the link if we have one. |
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| 229 | $html .= sprintf( |
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| 230 | '<a href="%2$s">%1$s</a>', |
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| 231 | esc_html( $atts['source'] ), |
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| 232 | esc_url( $atts['sourceurl'] ) |
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| 233 | ); |
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| 234 | else : |
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| 235 | // Skip the link. |
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| 236 | $html .= sprintf( |
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| 237 | '%1$s', |
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| 238 | esc_html( $atts['source'] ) |
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| 239 | ); |
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| 240 | endif; |
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| 241 | |||
| 242 | $html .= '</li>'; |
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| 243 | } |
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| 244 | |||
| 245 | if ( 'false' !== $atts['print'] ) { |
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| 246 | $html .= sprintf( |
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| 247 | '<li class="jetpack-recipe-print"><a href="#">%1$s</a></li>', |
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| 248 | esc_html_x( 'Print', 'recipe', 'jetpack' ) |
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| 249 | ); |
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| 250 | } |
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| 251 | |||
| 252 | $html .= '</ul>'; |
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| 253 | } // End if(). |
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| 254 | |||
| 255 | // Output the image, if we have one. |
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| 256 | if ( '' !== $atts['image'] ) { |
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| 257 | $html .= sprintf( |
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| 258 | '<img class="jetpack-recipe-image" itemprop="image" src="%1$s" />', |
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| 259 | esc_url( $atts['image'] ) |
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| 260 | ); |
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| 261 | } |
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| 262 | |||
| 263 | // Output the description, if we have one. |
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| 264 | if ( '' !== $atts['description'] ) { |
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| 265 | $html .= sprintf( |
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| 266 | '<p class="jetpack-recipe-description" itemprop="description">%1$s</p>', |
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| 267 | esc_html( $atts['description'] ) |
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| 268 | ); |
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| 269 | } |
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| 270 | |||
| 271 | // Print content between codes. |
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| 272 | $html .= '<div class="jetpack-recipe-content">' . do_shortcode( $content ) . '</div>'; |
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| 273 | |||
| 274 | // Close it up. |
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| 275 | $html .= '</div>'; |
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| 276 | |||
| 277 | // If there is a recipe within a recipe, remove the shortcode. |
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| 278 | if ( has_shortcode( $html, 'recipe' ) ) { |
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| 279 | remove_shortcode( 'recipe' ); |
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| 280 | } |
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| 281 | |||
| 282 | // Sanitize html. |
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| 283 | $html = wp_kses_post( $html ); |
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| 284 | |||
| 285 | // Return the HTML block. |
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| 286 | return $html; |
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| 287 | } |
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| 288 | |||
| 289 | /** |
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| 290 | * Our [recipe-notes] shortcode. |
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| 291 | * Outputs ingredients, styled in a div. |
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| 292 | * |
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| 293 | * @param array $atts Array of shortcode attributes. |
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| 294 | * @param string $content Post content. |
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| 295 | * |
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| 296 | * @return string HTML for recipe notes shortcode. |
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| 297 | */ |
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| 298 | View Code Duplication | static function recipe_notes_shortcode( $atts, $content = '' ) { |
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| 299 | $atts = shortcode_atts( array( |
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| 300 | 'title' => '', // string. |
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| 301 | ), $atts, 'recipe-notes' ); |
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| 302 | |||
| 303 | $html = ''; |
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| 304 | |||
| 305 | // Print a title if one exists. |
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| 306 | if ( '' !== $atts['title'] ) { |
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| 307 | $html .= '<h4 class="jetpack-recipe-notes-title">' . esc_html( $atts['title'] ) . '</h4>'; |
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| 308 | } |
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| 309 | |||
| 310 | $html .= '<div class="jetpack-recipe-notes">'; |
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| 311 | |||
| 312 | // Format content using list functionality, if desired. |
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| 313 | $html .= self::output_list_content( $content, 'notes' ); |
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| 314 | |||
| 315 | $html .= '</div>'; |
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| 316 | |||
| 317 | // Sanitize html. |
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| 318 | $html = wp_kses_post( $html ); |
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| 319 | |||
| 320 | // Return the HTML block. |
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| 321 | return $html; |
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| 322 | } |
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| 323 | |||
| 324 | /** |
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| 325 | * Our [recipe-ingredients] shortcode. |
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| 326 | * Outputs notes, styled in a div. |
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| 327 | * |
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| 328 | * @param array $atts Array of shortcode attributes. |
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| 329 | * @param string $content Post content. |
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| 330 | * |
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| 331 | * @return string HTML for recipe ingredients shortcode. |
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| 332 | */ |
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| 333 | View Code Duplication | static function recipe_ingredients_shortcode( $atts, $content = '' ) { |
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| 334 | $atts = shortcode_atts( array( |
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| 335 | 'title' => esc_html_x( 'Ingredients', 'recipe', 'jetpack' ), // string. |
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| 336 | ), $atts, 'recipe-ingredients' ); |
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| 337 | |||
| 338 | $html = '<div class="jetpack-recipe-ingredients">'; |
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| 339 | |||
| 340 | // Print a title unless the user has opted to exclude it. |
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| 341 | if ( 'false' !== $atts['title'] ) { |
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| 342 | $html .= '<h4 class="jetpack-recipe-ingredients-title">' . esc_html( $atts['title'] ) . '</h4>'; |
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| 343 | } |
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| 344 | |||
| 345 | // Format content using list functionality. |
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| 346 | $html .= self::output_list_content( $content, 'ingredients' ); |
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| 347 | |||
| 348 | $html .= '</div>'; |
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| 349 | |||
| 350 | // Sanitize html. |
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| 351 | $html = wp_kses_post( $html ); |
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| 352 | |||
| 353 | // Return the HTML block. |
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| 354 | return $html; |
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| 355 | } |
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| 356 | |||
| 357 | /** |
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| 358 | * Reusable function to check for shortened formatting. |
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| 359 | * Basically, users can create lists with the following shorthand: |
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| 360 | * - item one |
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| 361 | * - item two |
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| 362 | * - item three |
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| 363 | * And we'll magically convert it to a list. This has the added benefit |
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| 364 | * of including itemprops for the recipe schema. |
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| 365 | * |
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| 366 | * @param string $content HTML content. |
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| 367 | * @param string $type Type of list. |
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| 368 | * |
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| 369 | * @return string content formatted as a list item |
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| 370 | */ |
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| 371 | static function output_list_content( $content, $type ) { |
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| 372 | $html = ''; |
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| 373 | |||
| 374 | switch ( $type ) { |
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| 375 | case 'directions' : |
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| 376 | $list_item_replacement = '<li class="jetpack-recipe-directions">${1}</li>'; |
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| 377 | $itemprop = ' itemprop="recipeInstructions"'; |
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| 378 | $listtype = 'ol'; |
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| 379 | break; |
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| 380 | case 'ingredients' : |
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| 381 | $list_item_replacement = '<li class="jetpack-recipe-ingredient" itemprop="recipeIngredient">${1}</li>'; |
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| 382 | $itemprop = ''; |
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| 383 | $listtype = 'ul'; |
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0 ignored issues
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| 384 | break; |
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| 385 | default: |
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| 386 | $list_item_replacement = '<li class="jetpack-recipe-notes">${1}</li>'; |
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| 387 | $itemprop = ''; |
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| 388 | $listtype = 'ul'; |
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| 389 | } |
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| 390 | |||
| 391 | // Check to see if the user is trying to use shortened formatting. |
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| 392 | if ( |
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| 393 | strpos( $content, '–' ) !== false || |
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| 394 | strpos( $content, '—' ) !== false || |
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| 395 | strpos( $content, '-' ) !== false || |
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| 396 | strpos( $content, '*' ) !== false || |
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| 397 | strpos( $content, '#' ) !== false || |
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| 398 | strpos( $content, '–' ) !== false || // ndash. |
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| 399 | strpos( $content, '—' ) !== false || // mdash. |
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| 400 | preg_match( '/\d+\.\s/', $content ) |
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| 401 | ) { |
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| 402 | // Remove breaks and extra whitespace. |
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| 403 | $content = str_replace( "<br />\n", "\n", $content ); |
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| 404 | $content = trim( $content ); |
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| 405 | |||
| 406 | $ul_pattern = '/(?:^|\n|\<p\>)+(?:[\-–—]+|\–|\—|\*)+\h+(.*)/mi'; |
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| 407 | $ol_pattern = '/(?:^|\n|\<p\>)+(?:\d+\.|#+)+\h+(.*)/mi'; |
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| 408 | |||
| 409 | preg_match_all( $ul_pattern, $content, $ul_matches ); |
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| 410 | preg_match_all( $ol_pattern, $content, $ol_matches ); |
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| 411 | |||
| 412 | if ( 0 !== count( $ul_matches[0] ) || 0 !== count( $ol_matches[0] ) ) { |
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| 413 | |||
| 414 | if ( 0 !== count( $ol_matches[0] ) ) { |
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| 415 | $listtype = 'ol'; |
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| 416 | $list_item_pattern = $ol_pattern; |
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| 417 | } else { |
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| 418 | $listtype = 'ul'; |
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| 419 | $list_item_pattern = $ul_pattern; |
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| 420 | } |
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| 421 | $html .= '<' . $listtype . $itemprop . '>'; |
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| 422 | $html .= preg_replace( $list_item_pattern, $list_item_replacement, $content ); |
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| 423 | $html .= '</' . $listtype . '>'; |
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| 424 | |||
| 425 | // Strip out any empty <p> tags and stray </p> tags, because those are just silly. |
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| 426 | $empty_p_pattern = '/(<p>)*\s*<\/p>/mi'; |
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| 427 | $html = preg_replace( $empty_p_pattern, '', $html ); |
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| 428 | } else { |
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| 429 | $html .= do_shortcode( $content ); |
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| 430 | } |
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| 431 | } else { |
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| 432 | $html .= do_shortcode( $content ); |
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| 433 | } |
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| 434 | |||
| 435 | // Return our formatted content. |
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| 436 | return $html; |
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| 437 | } |
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| 438 | |||
| 439 | /** |
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| 440 | * Our [recipe-directions] shortcode. |
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| 441 | * Outputs directions, styled in a div. |
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| 442 | * |
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| 443 | * @param array $atts Array of shortcode attributes. |
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| 444 | * @param string $content Post content. |
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| 445 | * |
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| 446 | * @return string HTML for recipe directions shortcode. |
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| 447 | */ |
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| 448 | View Code Duplication | static function recipe_directions_shortcode( $atts, $content = '' ) { |
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| 449 | $atts = shortcode_atts( array( |
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| 450 | 'title' => esc_html_x( 'Directions', 'recipe', 'jetpack' ), // string. |
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| 451 | ), $atts, 'recipe-directions' ); |
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| 452 | |||
| 453 | $html = '<div class="jetpack-recipe-directions">'; |
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| 454 | |||
| 455 | // Print a title unless the user has specified to exclude it. |
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| 456 | if ( 'false' !== $atts['title'] ) { |
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| 457 | $html .= '<h4 class="jetpack-recipe-directions-title">' . esc_html( $atts['title'] ) . '</h4>'; |
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| 458 | } |
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| 459 | |||
| 460 | // Format content using list functionality. |
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| 461 | $html .= self::output_list_content( $content, 'directions' ); |
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| 462 | |||
| 463 | $html .= '</div>'; |
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| 464 | |||
| 465 | // Sanitize html. |
||
| 466 | $html = wp_kses_post( $html ); |
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| 467 | |||
| 468 | // Return the HTML block. |
||
| 469 | return $html; |
||
| 470 | } |
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| 471 | |||
| 472 | /** |
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| 473 | * Use $themecolors array to style the Recipes shortcode |
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| 474 | * |
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| 475 | * @print style block |
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| 476 | * @return string $style |
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| 477 | */ |
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| 478 | function themecolor_styles() { |
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| 479 | global $themecolors; |
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| 480 | $style = ''; |
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| 481 | |||
| 482 | if ( isset( $themecolors ) ) { |
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| 483 | $style .= '.jetpack-recipe { border-color: #' . esc_attr( $themecolors['border'] ) . '; }'; |
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| 484 | $style .= '.jetpack-recipe-title { border-bottom-color: #' . esc_attr( $themecolors['link'] ) . '; }'; |
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| 485 | } |
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| 486 | |||
| 487 | return $style; |
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| 488 | } |
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| 489 | |||
| 490 | } |
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| 491 | |||
| 492 | new Jetpack_Recipes(); |
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| 493 |
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.