library
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front.php
5 years ago
media-template.php
5 years ago
meta.php
5 years ago
picker.php
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settings.php
5 years ago
type-fonts.php
5 years ago
type.php
5 years ago
front.php
431 lines
| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Front end functionalities |
| 5 | * |
| 6 | * @package Menu_Icons |
| 7 | * @author Dzikri Aziz <kvcrvt@gmail.com> |
| 8 | */ |
| 9 | final class Menu_Icons_Front_End { |
| 10 | |
| 11 | /** |
| 12 | * Icon types |
| 13 | * |
| 14 | * @since 0.9.0 |
| 15 | * @access protected |
| 16 | * @var array |
| 17 | */ |
| 18 | protected static $icon_types = array(); |
| 19 | |
| 20 | /** |
| 21 | * Default icon style |
| 22 | * |
| 23 | * @since 0.9.0 |
| 24 | * @access protected |
| 25 | * @var array |
| 26 | */ |
| 27 | protected static $default_style = array( |
| 28 | 'font_size' => array( |
| 29 | 'property' => 'font-size', |
| 30 | 'value' => '1.2', |
| 31 | 'unit' => 'em', |
| 32 | ), |
| 33 | 'vertical_align' => array( |
| 34 | 'property' => 'vertical-align', |
| 35 | 'value' => 'middle', |
| 36 | 'unit' => null, |
| 37 | ), |
| 38 | 'svg_width' => array( |
| 39 | 'property' => 'width', |
| 40 | 'value' => '1', |
| 41 | 'unit' => 'em', |
| 42 | ), |
| 43 | ); |
| 44 | |
| 45 | /** |
| 46 | * Hidden label class |
| 47 | * |
| 48 | * @since 0.9.0 |
| 49 | * @access protected |
| 50 | * @var string |
| 51 | */ |
| 52 | protected static $hidden_label_class = 'visuallyhidden'; |
| 53 | |
| 54 | |
| 55 | /** |
| 56 | * Add hooks for front-end functionalities |
| 57 | * |
| 58 | * @since 0.9.0 |
| 59 | */ |
| 60 | public static function init() { |
| 61 | $active_types = Menu_Icons_Settings::get( 'global', 'icon_types' ); |
| 62 | |
| 63 | if ( empty( $active_types ) ) { |
| 64 | return; |
| 65 | } |
| 66 | |
| 67 | foreach ( Menu_Icons::get( 'types' ) as $type ) { |
| 68 | if ( in_array( $type->id, $active_types, true ) ) { |
| 69 | self::$icon_types[ $type->id ] = $type; |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | /** |
| 74 | * Allow themes/plugins to override the hidden label class |
| 75 | * |
| 76 | * @since 0.8.0 |
| 77 | * @param string $hidden_label_class Hidden label class. |
| 78 | * @return string |
| 79 | */ |
| 80 | self::$hidden_label_class = apply_filters( 'menu_icons_hidden_label_class', self::$hidden_label_class ); |
| 81 | |
| 82 | /** |
| 83 | * Allow themes/plugins to override default inline style |
| 84 | * |
| 85 | * @since 0.9.0 |
| 86 | * @param array $default_style Default inline style. |
| 87 | * @return array |
| 88 | */ |
| 89 | self::$default_style = apply_filters( 'menu_icons_default_style', self::$default_style ); |
| 90 | |
| 91 | add_action( 'wp_enqueue_scripts', array( __CLASS__, '_enqueue_styles' ), 7 ); |
| 92 | add_filter( 'wp_nav_menu_args', array( __CLASS__, '_add_menu_item_title_filter' ) ); |
| 93 | add_filter( 'wp_nav_menu', array( __CLASS__, '_remove_menu_item_title_filter' ) ); |
| 94 | } |
| 95 | |
| 96 | |
| 97 | /** |
| 98 | * Get nav menu ID based on arguments passed to wp_nav_menu() |
| 99 | * |
| 100 | * @since 0.3.0 |
| 101 | * @param array $args wp_nav_menu() Arguments |
| 102 | * @return mixed Nav menu ID or FALSE on failure |
| 103 | */ |
| 104 | public static function get_nav_menu_id( $args ) { |
| 105 | $args = (object) $args; |
| 106 | $menu = wp_get_nav_menu_object( $args->menu ); |
| 107 | |
| 108 | // Get the nav menu based on the theme_location |
| 109 | if ( ! $menu |
| 110 | && $args->theme_location |
| 111 | && ( $locations = get_nav_menu_locations() ) |
| 112 | && isset( $locations[ $args->theme_location ] ) |
| 113 | ) { |
| 114 | $menu = wp_get_nav_menu_object( $locations[ $args->theme_location ] ); |
| 115 | } |
| 116 | |
| 117 | // get the first menu that has items if we still can't find a menu |
| 118 | if ( ! $menu && ! $args->theme_location ) { |
| 119 | $menus = wp_get_nav_menus(); |
| 120 | foreach ( $menus as $menu_maybe ) { |
| 121 | if ( $menu_items = wp_get_nav_menu_items( $menu_maybe->term_id, array( 'update_post_term_cache' => false ) ) ) { |
| 122 | $menu = $menu_maybe; |
| 123 | break; |
| 124 | } |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | if ( is_object( $menu ) && ! is_wp_error( $menu ) ) { |
| 129 | return $menu->term_id; |
| 130 | } else { |
| 131 | return false; |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | |
| 136 | /** |
| 137 | * Enqueue stylesheets |
| 138 | * |
| 139 | * @since 0.1.0 |
| 140 | * @wp_hook action wp_enqueue_scripts |
| 141 | * @link http://codex.wordpress.org/Plugin_API/Action_Reference/wp_enqueue_scripts |
| 142 | */ |
| 143 | public static function _enqueue_styles() { |
| 144 | foreach ( self::$icon_types as $type ) { |
| 145 | if ( wp_style_is( $type->stylesheet_id, 'registered' ) ) { |
| 146 | wp_enqueue_style( $type->stylesheet_id ); |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | /** |
| 151 | * Allow plugins/themes to override the extra stylesheet location |
| 152 | * |
| 153 | * @since 0.9.0 |
| 154 | * @param string $extra_stylesheet_uri Extra stylesheet URI. |
| 155 | */ |
| 156 | $extra_stylesheet_uri = apply_filters( |
| 157 | 'menu_icons_extra_stylesheet_uri', |
| 158 | sprintf( '%scss/extra%s.css', Menu_Icons::get( 'url' ), kucrut_get_script_suffix() ) |
| 159 | ); |
| 160 | |
| 161 | wp_enqueue_style( |
| 162 | 'menu-icons-extra', |
| 163 | $extra_stylesheet_uri, |
| 164 | false, |
| 165 | Menu_Icons::VERSION |
| 166 | ); |
| 167 | } |
| 168 | |
| 169 | |
| 170 | /** |
| 171 | * Add filter to 'the_title' hook |
| 172 | * |
| 173 | * We need to filter the menu item title but **not** regular post titles. |
| 174 | * Thus, we're adding the filter when `wp_nav_menu()` is called. |
| 175 | * |
| 176 | * @since 0.1.0 |
| 177 | * @wp_hook filter wp_nav_menu_args |
| 178 | * @param array $args Not used. |
| 179 | * |
| 180 | * @return array |
| 181 | */ |
| 182 | public static function _add_menu_item_title_filter( $args ) { |
| 183 | add_filter( 'the_title', array( __CLASS__, '_add_icon' ), 999, 2 ); |
| 184 | |
| 185 | return $args; |
| 186 | } |
| 187 | |
| 188 | |
| 189 | /** |
| 190 | * Remove filter from 'the_title' hook |
| 191 | * |
| 192 | * Because we don't want to filter post titles, we need to remove our |
| 193 | * filter when `wp_nav_menu()` exits. |
| 194 | * |
| 195 | * @since 0.1.0 |
| 196 | * @wp_hook filter wp_nav_menu |
| 197 | * @param array $nav_menu Not used. |
| 198 | * @return array |
| 199 | */ |
| 200 | public static function _remove_menu_item_title_filter( $nav_menu ) { |
| 201 | remove_filter( 'the_title', array( __CLASS__, '_add_icon' ), 999, 2 ); |
| 202 | |
| 203 | return $nav_menu; |
| 204 | } |
| 205 | |
| 206 | |
| 207 | /** |
| 208 | * Add icon to menu item title |
| 209 | * |
| 210 | * @since 0.1.0 |
| 211 | * @since 0.9.0 Renamed the method to `add_icon()`. |
| 212 | * @wp_hook filter the_title |
| 213 | * @param string $title Menu item title. |
| 214 | * @param int $id Menu item ID. |
| 215 | * |
| 216 | * @return string |
| 217 | */ |
| 218 | public static function _add_icon( $title, $id ) { |
| 219 | $meta = Menu_Icons_Meta::get( $id ); |
| 220 | $icon = self::get_icon( $meta ); |
| 221 | |
| 222 | if ( empty( $icon ) ) { |
| 223 | return $title; |
| 224 | } |
| 225 | |
| 226 | $title_class = ! empty( $meta['hide_label'] ) ? self::$hidden_label_class : ''; |
| 227 | $title_wrapped = sprintf( |
| 228 | '<span%s>%s</span>', |
| 229 | ( ! empty( $title_class ) ) ? sprintf( ' class="%s"', esc_attr( $title_class ) ) : '', |
| 230 | $title |
| 231 | ); |
| 232 | |
| 233 | if ( 'after' === $meta['position'] ) { |
| 234 | $title_with_icon = "{$title_wrapped}{$icon}"; |
| 235 | } else { |
| 236 | $title_with_icon = "{$icon}{$title_wrapped}"; |
| 237 | } |
| 238 | |
| 239 | /** |
| 240 | * Allow plugins/themes to override menu item markup |
| 241 | * |
| 242 | * @since 0.8.0 |
| 243 | * |
| 244 | * @param string $title_with_icon Menu item markup after the icon is added. |
| 245 | * @param integer $id Menu item ID. |
| 246 | * @param array $meta Menu item metadata values. |
| 247 | * @param string $title Original menu item title. |
| 248 | * |
| 249 | * @return string |
| 250 | */ |
| 251 | $title_with_icon = apply_filters( 'menu_icons_item_title', $title_with_icon, $id, $meta, $title ); |
| 252 | |
| 253 | return $title_with_icon; |
| 254 | } |
| 255 | |
| 256 | |
| 257 | /** |
| 258 | * Get icon |
| 259 | * |
| 260 | * @since 0.9.0 |
| 261 | * @param array $meta Menu item meta value. |
| 262 | * @return string |
| 263 | */ |
| 264 | public static function get_icon( $meta ) { |
| 265 | $icon = ''; |
| 266 | |
| 267 | // Icon type is not set. |
| 268 | if ( empty( $meta['type'] ) ) { |
| 269 | return $icon; |
| 270 | } |
| 271 | |
| 272 | // Icon is not set. |
| 273 | if ( empty( $meta['icon'] ) ) { |
| 274 | return $icon; |
| 275 | } |
| 276 | |
| 277 | // Icon type is not registered/enabled. |
| 278 | if ( ! isset( self::$icon_types[ $meta['type'] ] ) ) { |
| 279 | return $icon; |
| 280 | } |
| 281 | |
| 282 | $type = self::$icon_types[ $meta['type'] ]; |
| 283 | |
| 284 | $callbacks = array( |
| 285 | array( $type, 'get_icon' ), |
| 286 | array( __CLASS__, "get_{$type->id}_icon" ), |
| 287 | array( __CLASS__, "get_{$type->template_id}_icon" ), |
| 288 | ); |
| 289 | |
| 290 | foreach ( $callbacks as $callback ) { |
| 291 | if ( is_callable( $callback ) ) { |
| 292 | $icon = call_user_func( $callback, $meta ); |
| 293 | break; |
| 294 | } |
| 295 | } |
| 296 | |
| 297 | return $icon; |
| 298 | } |
| 299 | |
| 300 | |
| 301 | /** |
| 302 | * Get icon style |
| 303 | * |
| 304 | * @since 0.9.0 |
| 305 | * @param array $meta Menu item meta value. |
| 306 | * @param array $keys Style properties. |
| 307 | * @param bool $as_attribute Optional. Whether to output the style as HTML attribute or value only. |
| 308 | * Defaults to TRUE. |
| 309 | * @return string |
| 310 | */ |
| 311 | public static function get_icon_style( $meta, $keys, $as_attribute = true ) { |
| 312 | $style_a = array(); |
| 313 | $style_s = ''; |
| 314 | |
| 315 | foreach ( $keys as $key ) { |
| 316 | if ( ! isset( self::$default_style[ $key ] ) ) { |
| 317 | continue; |
| 318 | } |
| 319 | |
| 320 | $rule = self::$default_style[ $key ]; |
| 321 | |
| 322 | if ( ! isset( $meta[ $key ] ) || $meta[ $key ] === $rule['value'] ) { |
| 323 | continue; |
| 324 | } |
| 325 | |
| 326 | $value = $meta[ $key ]; |
| 327 | if ( ! empty( $rule['unit'] ) ) { |
| 328 | $value .= $rule['unit']; |
| 329 | } |
| 330 | |
| 331 | $style_a[ $rule['property'] ] = $value; |
| 332 | } |
| 333 | |
| 334 | if ( empty( $style_a ) ) { |
| 335 | return $style_s; |
| 336 | } |
| 337 | |
| 338 | foreach ( $style_a as $key => $value ) { |
| 339 | $style_s .= "{$key}:{$value};"; |
| 340 | } |
| 341 | |
| 342 | $style_s = esc_attr( $style_s ); |
| 343 | |
| 344 | if ( $as_attribute ) { |
| 345 | $style_s = sprintf( ' style="%s"', $style_s ); |
| 346 | } |
| 347 | |
| 348 | return $style_s; |
| 349 | } |
| 350 | |
| 351 | |
| 352 | /** |
| 353 | * Get icon classes |
| 354 | * |
| 355 | * @since 0.9.0 |
| 356 | * @param array $meta Menu item meta value. |
| 357 | * @param string $output Whether to output the classes as string or array. Defaults to string. |
| 358 | * @return string|array |
| 359 | */ |
| 360 | public static function get_icon_classes( $meta, $output = 'string' ) { |
| 361 | $classes = array( '_mi' ); |
| 362 | |
| 363 | if ( empty( $meta['hide_label'] ) ) { |
| 364 | $classes[] = "_{$meta['position']}"; |
| 365 | } |
| 366 | |
| 367 | if ( 'string' === $output ) { |
| 368 | $classes = implode( ' ', $classes ); |
| 369 | } |
| 370 | |
| 371 | return $classes; |
| 372 | } |
| 373 | |
| 374 | |
| 375 | /** |
| 376 | * Get font icon |
| 377 | * |
| 378 | * @since 0.9.0 |
| 379 | * @param array $meta Menu item meta value. |
| 380 | * @return string |
| 381 | */ |
| 382 | public static function get_font_icon( $meta ) { |
| 383 | $classes = sprintf( '%s %s %s', self::get_icon_classes( $meta ), $meta['type'], $meta['icon'] ); |
| 384 | $style = self::get_icon_style( $meta, array( 'font_size', 'vertical_align' ) ); |
| 385 | |
| 386 | return sprintf( '<i class="%s" aria-hidden="true"%s></i>', esc_attr( $classes ), $style ); |
| 387 | } |
| 388 | |
| 389 | |
| 390 | /** |
| 391 | * Get image icon |
| 392 | * |
| 393 | * @since 0.9.0 |
| 394 | * @param array $meta Menu item meta value. |
| 395 | * @return string |
| 396 | */ |
| 397 | public static function get_image_icon( $meta ) { |
| 398 | $args = array( |
| 399 | 'class' => sprintf( '%s _image', self::get_icon_classes( $meta ) ), |
| 400 | 'aria-hidden' => 'true', |
| 401 | ); |
| 402 | |
| 403 | $style = self::get_icon_style( $meta, array( 'vertical_align' ), false ); |
| 404 | if ( ! empty( $style ) ) { |
| 405 | $args['style'] = $style; |
| 406 | } |
| 407 | |
| 408 | return wp_get_attachment_image( $meta['icon'], $meta['image_size'], false, $args ); |
| 409 | } |
| 410 | |
| 411 | |
| 412 | /** |
| 413 | * Get SVG icon |
| 414 | * |
| 415 | * @since 0.9.0 |
| 416 | * @param array $meta Menu item meta value. |
| 417 | * @return string |
| 418 | */ |
| 419 | public static function get_svg_icon( $meta ) { |
| 420 | $classes = sprintf( '%s _svg', self::get_icon_classes( $meta ) ); |
| 421 | $style = self::get_icon_style( $meta, array( 'svg_width', 'vertical_align' ) ); |
| 422 | |
| 423 | return sprintf( |
| 424 | '<img src="%s" class="%s" aria-hidden="true"%s />', |
| 425 | esc_url( wp_get_attachment_url( $meta['icon'] ) ), |
| 426 | esc_attr( $classes ), |
| 427 | $style |
| 428 | ); |
| 429 | } |
| 430 | } |
| 431 |