| 1 |
<?php |
| 2 |
/** |
| 3 |
* WP Accessibility |
| 4 |
* |
| 5 |
* @package WP Accessibility |
| 6 |
* @author Joe Dolson |
| 7 |
* @copyright 2012-2025 Joe Dolson |
| 8 |
* @license GPL-2.0+ |
| 9 |
* |
| 10 |
* @wordpress-plugin |
| 11 |
* Plugin Name: WP Accessibility |
| 12 |
* Plugin URI: https://www.joedolson.com/wp-accessibility/ |
| 13 |
* Description: Helps improve accessibility in your WordPress site, like removing title attributes. |
| 14 |
* Author: Joe Dolson |
| 15 |
* Author URI: https://www.joedolson.com/ |
| 16 |
* Text Domain: wp-accessibility |
| 17 |
* Domain Path: /lang |
| 18 |
* License: GPL-2.0+ |
| 19 |
* License URI: http://www.gnu.org/license/gpl-2.0.txt |
| 20 |
* Version: 2.3.0 |
| 21 |
*/ |
| 22 |
|
| 23 |
/* |
| 24 |
Copyright 2012-2025 Joe Dolson (email : joe@joedolson.com) |
| 25 |
|
| 26 |
This program is free software; you can redistribute it and/or modify |
| 27 |
it under the terms of the GNU General Public License as published by |
| 28 |
the Free Software Foundation; either version 2 of the License, or |
| 29 |
(at your option) any later version. |
| 30 |
|
| 31 |
This program is distributed in the hope that it will be useful, |
| 32 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 33 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 34 |
GNU General Public License for more details. |
| 35 |
|
| 36 |
You should have received a copy of the GNU General Public License |
| 37 |
along with this program; if not, write to the Free Software |
| 38 |
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 39 |
*/ |
| 40 |
|
| 41 |
if ( 'on' === get_option( 'wpa_toolbar' ) || 'on' === get_option( 'wpa_widget_toolbar' ) ) { |
| 42 |
require_once __DIR__ . '/wp-accessibility-toolbar.php'; |
| 43 |
} |
| 44 |
require_once __DIR__ . '/wp-accessibility-longdesc.php'; |
| 45 |
require_once __DIR__ . '/wp-accessibility-alt.php'; |
| 46 |
require_once __DIR__ . '/wp-accessibility-contrast.php'; |
| 47 |
require_once __DIR__ . '/wp-accessibility-settings.php'; |
| 48 |
require_once __DIR__ . '/wp-accessibility-overlay.php'; |
| 49 |
require_once __DIR__ . '/wp-accessibility-admin.php'; |
| 50 |
require_once __DIR__ . '/wp-accessibility-help.php'; |
| 51 |
if ( 'off' !== get_option( 'wpa_track_stats' ) ) { |
| 52 |
require_once __DIR__ . '/wp-accessibility-stats.php'; |
| 53 |
} |
| 54 |
|
| 55 |
define( 'WP_ACCESSIBILITY_VERSION', '2.3.0' ); |
| 56 |
|
| 57 |
register_activation_hook( __FILE__, 'wpa_install' ); |
| 58 |
|
| 59 |
add_action( 'admin_notices', 'wpa_status_notice', 10 ); |
| 60 |
/** |
| 61 |
* Display notice in Playground for demo purposes. |
| 62 |
*/ |
| 63 |
function wpa_status_notice() { |
| 64 |
// Only shown when in the Playground preview. |
| 65 |
if ( 'true' === get_option( 'wpa_show_playground_intro', '' ) ) { |
| 66 |
echo '<div class="notice notice-info">'; |
| 67 |
echo '<h3>' . __( 'Thanks for trying out WP Accessibility!', 'wp-accessibility' ) . '</h3>'; |
| 68 |
echo '<p>' . __( "Let me give you a few quick things to try out while you're here:", 'wp-accessibility' ) . '</p>'; |
| 69 |
echo '<ol>'; |
| 70 |
echo '<li>' . __( 'Create a new post and add media to observe some WP Accessibility features.', 'wp-accessibility' ) . '</li>'; |
| 71 |
echo '<li>' . __( 'Go to the Themes page and install a theme of your choice, then explore the site. Errors corrected are logged in the console and saved to stats.', 'wp-accessibility' ) . '</li>'; |
| 72 |
echo '<li>' . __( 'Visit the WP Accessibility Stats to view what WP Accessibility did on each page.', 'wp-accessibility' ) . '</li>'; |
| 73 |
echo '</ol>'; |
| 74 |
// translators: link to plugin documentation. |
| 75 |
echo '<p>' . sprintf( __( 'To learn more, check out the <a href="%s">plugin documentation</a>.', 'wp-accessibility' ), 'https://docs.joedolson.com/wp-accessibility/' ) . '</p>'; |
| 76 |
echo '</div>'; |
| 77 |
} |
| 78 |
} |
| 79 |
|
| 80 |
add_action( 'admin_menu', 'wpa_admin_menu' ); |
| 81 |
/** |
| 82 |
* Set up admin menu. |
| 83 |
*/ |
| 84 |
function wpa_admin_menu() { |
| 85 |
add_menu_page( __( 'WP Accessibility - Features', 'wp-accessibility' ), __( 'WP Accessibility', 'wp-accessibility' ), 'manage_options', 'wp-accessibility', 'wpa_admin_settings', 'dashicons-universal-access' ); |
| 86 |
add_submenu_page( 'wp-accessibility', __( 'WP Accessibility - Fixes', 'wp-accessibility' ), __( 'Accessibility Fixes', 'wp-accessibility' ), 'manage_options', 'wp-accessibility-overlay', 'wpa_admin_overlay_settings' ); |
| 87 |
add_submenu_page( 'wp-accessibility', __( 'WP Accessibility - Admin & Testing', 'wp-accessibility' ), __( 'Testing & Admin', 'wp-accessibility' ), 'manage_options', 'wp-accessibility-admin', 'wpa_admin_admin_settings' ); |
| 88 |
add_submenu_page( 'wp-accessibility', __( 'WP Accessibility - Help', 'wp-accessibility' ), __( 'Get Help', 'wp-accessibility' ), 'manage_options', 'wp-accessibility-help', 'wpa_help_screen' ); |
| 89 |
} |
| 90 |
|
| 91 |
/** |
| 92 |
* Install on activation. |
| 93 |
*/ |
| 94 |
function wpa_install() { |
| 95 |
if ( 'true' !== get_option( 'wpa_installed' ) ) { |
| 96 |
add_option( 'asl_styles_focus', '' ); |
| 97 |
add_option( 'asl_styles_passive', '' ); |
| 98 |
add_option( 'asl_default_styles', 'true' ); |
| 99 |
add_option( 'wpa_target', 'on' ); |
| 100 |
add_option( 'wpa_search', 'on' ); |
| 101 |
add_option( 'wpa_tabindex', 'on' ); |
| 102 |
add_option( 'wpa_continue', 'Continue Reading' ); |
| 103 |
add_option( 'wpa_focus', '' ); |
| 104 |
add_option( 'wpa_installed', 'true' ); |
| 105 |
add_option( 'wpa_longdesc', 'button' ); |
| 106 |
add_option( 'wpa_post_types', array( 'post' ) ); |
| 107 |
} else { |
| 108 |
wpa_check_version(); |
| 109 |
} |
| 110 |
} |
| 111 |
|
| 112 |
/** |
| 113 |
* Check current version and upgrade if needed. |
| 114 |
* |
| 115 |
* @return string |
| 116 |
*/ |
| 117 |
function wpa_check_version() { |
| 118 |
// upgrade for version 1.3.0. |
| 119 |
$version = WP_ACCESSIBILITY_VERSION; |
| 120 |
if ( version_compare( $version, '2.3.0', '<' ) ) { |
| 121 |
add_option( 'wpa_lang_attributes', 'on' ); |
| 122 |
} |
| 123 |
if ( version_compare( $version, '1.3.0', '<' ) ) { |
| 124 |
add_option( 'wpa_longdesc', 'button' ); |
| 125 |
} |
| 126 |
// upgrade for version 1.9.0. |
| 127 |
if ( version_compare( $version, '1.9.0', '<' ) ) { |
| 128 |
add_option( 'wpa_post_types', array( 'post' ) ); |
| 129 |
$wpa_toolbar_fs = get_option( 'wpa_toolbar_fs', '' ); |
| 130 |
$wpa_toolbar_ct = get_option( 'wpa_toolbar_ct', '' ); |
| 131 |
if ( '' === $wpa_toolbar_fs ) { |
| 132 |
update_option( 'wpa_toolbar_fs', 'on' ); |
| 133 |
} |
| 134 |
if ( '' === $wpa_toolbar_ct ) { |
| 135 |
update_option( 'wpa_toolbar_ct', 'on' ); |
| 136 |
} |
| 137 |
} |
| 138 |
if ( version_compare( $version, '2.2.0', '<' ) ) { |
| 139 |
$ld_option = get_option( 'wpa_longdesc' ); |
| 140 |
if ( 'jquery' === $ld_option ) { |
| 141 |
update_option( 'wpa_longdesc', 'button' ); |
| 142 |
} |
| 143 |
} |
| 144 |
|
| 145 |
return $version; |
| 146 |
} |
| 147 |
|
| 148 |
add_filter( 'plugin_action_links', 'wpa_plugin_action', 10, 2 ); |
| 149 |
/** |
| 150 |
* Add plugin action links. |
| 151 |
* |
| 152 |
* @param array $links Existing links. |
| 153 |
* @param string $file File name. |
| 154 |
*/ |
| 155 |
function wpa_plugin_action( $links, $file ) { |
| 156 |
if ( plugin_basename( __DIR__ . '/wp-accessibility.php' ) === $file ) { |
| 157 |
$admin_url = admin_url( 'admin.php?page=wp-accessibility' ); |
| 158 |
$links[] = "<a href='$admin_url'>" . __( 'Accessibility Settings', 'wp-accessibility' ) . '</a>'; |
| 159 |
} |
| 160 |
|
| 161 |
return $links; |
| 162 |
} |
| 163 |
|
| 164 |
add_action( 'wp_enqueue_scripts', 'wpa_stylesheet' ); |
| 165 |
/** |
| 166 |
* Enqueue stylesheets for WP Accessibility. |
| 167 |
*/ |
| 168 |
function wpa_stylesheet() { |
| 169 |
$version = ( SCRIPT_DEBUG ) ? wp_rand( 10000, 100000 ) : wpa_check_version(); |
| 170 |
wp_register_style( 'wpa-style', plugins_url( 'css/wpa-style.css', __FILE__ ), array(), $version ); |
| 171 |
$ld = get_option( 'wpa_longdesc' ); |
| 172 |
if ( 'link' === $ld || 'jquery' === $ld || 'button' === $ld || 'on' === get_option( 'asl_enable' ) || ! empty( get_option( 'wpa_post_types', array() ) ) ) { |
| 173 |
wp_enqueue_style( 'wpa-style' ); |
| 174 |
// these styles are derived from the WordPress skip link defaults. |
| 175 |
$top = '7px'; |
| 176 |
if ( is_admin_bar_showing() ) { |
| 177 |
$top = '37px'; |
| 178 |
} |
| 179 |
$add_css = ( ! wpa_accessible_theme() ) ? wpa_css() : ''; |
| 180 |
$custom_css = ':root { --admin-bar-top : ' . $top . '; }'; |
| 181 |
wp_add_inline_style( 'wpa-style', wp_filter_nohtml_kses( stripcslashes( $add_css . $custom_css ) ) ); |
| 182 |
} |
| 183 |
if ( current_user_can( 'edit_files' ) && 'on' === get_option( 'wpa_diagnostics' ) ) { |
| 184 |
wp_register_style( 'diagnostic', plugins_url( 'css/diagnostic.css', __FILE__ ) ); |
| 185 |
wp_register_style( 'diagnostic-head', plugins_url( 'css/diagnostic-head.css', __FILE__ ) ); |
| 186 |
wp_enqueue_style( 'diagnostic' ); |
| 187 |
wp_enqueue_style( 'diagnostic-head' ); |
| 188 |
} |
| 189 |
} |
| 190 |
|
| 191 |
add_action( 'admin_head', 'wpa_admin_stylesheet' ); |
| 192 |
/** |
| 193 |
* Enqueue admin stylesheets if enabled |
| 194 |
*/ |
| 195 |
function wpa_admin_stylesheet() { |
| 196 |
// Used to provide an admin CSS from plug-in, now only enqueue if custom provided in theme. |
| 197 |
if ( file_exists( get_stylesheet_directory() . '/wp-admin.css' ) ) { |
| 198 |
$file = get_stylesheet_directory_uri() . '/wp-admin.css'; |
| 199 |
wp_register_style( 'wp-a11y-css', $file ); |
| 200 |
wp_enqueue_style( 'wp-a11y-css' ); |
| 201 |
} |
| 202 |
} |
| 203 |
|
| 204 |
/** |
| 205 |
* Generate skiplink CSS. |
| 206 |
* |
| 207 |
* @param bool $defaults 'true' to return defaults regardless of settings. |
| 208 |
* |
| 209 |
* @return string |
| 210 |
*/ |
| 211 |
function wpa_skiplink_css( $defaults = false ) { |
| 212 |
$use_defaults = get_option( 'asl_default_styles', '' ); |
| 213 |
$styles = ''; |
| 214 |
$focus = ''; |
| 215 |
$passive = ''; |
| 216 |
$visibility = ( 'on' === get_option( 'asl_visible' ) ) ? 'wpa-visible' : 'wpa-hide'; |
| 217 |
$is_rtl = ( is_rtl() ) ? '-rtl' : '-ltr'; |
| 218 |
$off_vis = ( 'on' === get_option( 'asl_visible' ) ) ? 'wpa-hide' : 'wpa-visible'; |
| 219 |
$off_rtl = ( is_rtl() ) ? '-ltr' : '-rtl'; |
| 220 |
// If not using default styles. |
| 221 |
if ( 'true' !== $use_defaults && ! $defaults ) { |
| 222 |
$default_focus = ''; |
| 223 |
$default_passive = ''; |
| 224 |
if ( '' !== get_option( 'asl_styles' ) ) { |
| 225 |
$styles = wp_filter_nohtml_kses( get_option( 'asl_styles' ) ); |
| 226 |
// Ensure custom styles match settings. |
| 227 |
$styles = str_replace( array( $off_vis, $off_rtl ), array( $visibility, $is_rtl ), $styles ); |
| 228 |
// If custom styles contain #skiplinks, we can just return this; it's probably a fully realized selector. |
| 229 |
if ( false !== stripos( $styles, '#skiplinks' ) ) { |
| 230 |
return $styles; |
| 231 |
} |
| 232 |
} else { |
| 233 |
$focus = wp_filter_nohtml_kses( get_option( 'asl_styles_focus' ) ); |
| 234 |
$passive = wp_filter_nohtml_kses( get_option( 'asl_styles_passive' ) ); |
| 235 |
} |
| 236 |
} else { |
| 237 |
// these styles are derived from the WordPress skip link defaults. |
| 238 |
$default_focus = 'background-color: #f1f1f1; |
| 239 |
box-shadow: 0 0 2px 2px rgba(0, 0, 0, 0.6); |
| 240 |
color: #0073aa; |
| 241 |
display: block; |
| 242 |
font-weight: 600; |
| 243 |
height: auto; |
| 244 |
line-height: normal; |
| 245 |
padding: 15px 23px 14px; |
| 246 |
position: absolute; |
| 247 |
left: 6px; |
| 248 |
top: var(--admin-bar-top); |
| 249 |
text-decoration: none; |
| 250 |
text-transform: none; |
| 251 |
width: auto; |
| 252 |
z-index: 100000;'; |
| 253 |
|
| 254 |
// Passive default styles derived from WordPress default focus styles. |
| 255 |
$default_passive = 'background-color: #fff; |
| 256 |
box-shadow: 0 0 2px 2px rgba(0, 0, 0, 0.2); |
| 257 |
color: #333; |
| 258 |
display: block; |
| 259 |
font-weight: 600; |
| 260 |
height: auto; |
| 261 |
line-height: normal; |
| 262 |
padding: 15px 23px 14px; |
| 263 |
position: absolute; |
| 264 |
left: 6px; |
| 265 |
top: var(--admin-bar-top); |
| 266 |
text-decoration: none; |
| 267 |
text-transform: none; |
| 268 |
width: auto; |
| 269 |
z-index: 100000;'; |
| 270 |
} |
| 271 |
if ( is_admin() && '' !== $styles ) { |
| 272 |
return $styles; |
| 273 |
} |
| 274 |
|
| 275 |
if ( ! $focus ) { |
| 276 |
$focus = $default_focus; |
| 277 |
} else { |
| 278 |
$focus = $default_focus . $focus; |
| 279 |
} |
| 280 |
|
| 281 |
$vis = ''; |
| 282 |
$invis = ''; |
| 283 |
$class = '.' . $visibility . $is_rtl; |
| 284 |
// If links are visible, "hover" is a focus style, otherwise, it's a passive style. |
| 285 |
if ( 'on' === get_option( 'asl_visible' ) ) { |
| 286 |
$vis = $class . '#skiplinks a:hover,'; |
| 287 |
$passive = $default_passive . $passive; |
| 288 |
} else { |
| 289 |
$invis = $class . '#skiplinks a:hover,'; |
| 290 |
$passive = ''; |
| 291 |
} |
| 292 |
$styles .= " |
| 293 |
$class#skiplinks a, $invis $class#skiplinks a:visited { |
| 294 |
$passive |
| 295 |
} |
| 296 |
$class#skiplinks a:active, $vis $class#skiplinks a:focus { |
| 297 |
$focus |
| 298 |
} |
| 299 |
"; |
| 300 |
/** |
| 301 |
* Filter CSS styles output on front-end for skip links. |
| 302 |
* |
| 303 |
* @hook wpa_skiplink_styles |
| 304 |
* |
| 305 |
* @param {string} $styles Styles configured by settings. |
| 306 |
* |
| 307 |
* @return {string} |
| 308 |
*/ |
| 309 |
$styles = apply_filters( 'wpa_skiplink_styles', $styles ); |
| 310 |
|
| 311 |
return $styles; |
| 312 |
} |
| 313 |
|
| 314 |
/** |
| 315 |
* Generate styles needed for WP Accessibility options. |
| 316 |
*/ |
| 317 |
function wpa_css() { |
| 318 |
$styles = ''; |
| 319 |
if ( get_option( 'asl_enable' ) === 'on' ) { |
| 320 |
$styles .= wpa_skiplink_css(); |
| 321 |
} |
| 322 |
if ( 'on' === get_option( 'wpa_focus' ) ) { |
| 323 |
$color = ( false !== (bool) get_option( 'wpa_focus_color' ) ) ? ' #' . get_option( 'wpa_focus_color' ) : '#233c7f'; |
| 324 |
$styles .= " |
| 325 |
:focus { outline: 2px solid$color!important; outline-offset: 2px !important; } |
| 326 |
"; |
| 327 |
} |
| 328 |
|
| 329 |
return $styles; |
| 330 |
} |
| 331 |
|
| 332 |
/** |
| 333 |
* Test whether a URL is validly structured. |
| 334 |
* |
| 335 |
* @param string $url A purported URL. |
| 336 |
* |
| 337 |
* @return mixed URL if valid, false if not. |
| 338 |
*/ |
| 339 |
function wpa_is_url( $url ) { |
| 340 |
return preg_match( '|^http(s)?://[a-z0-9-]+(.[a-z0-9-]+)*(:[0-9]+)?(/.*)?$|i', $url ); |
| 341 |
} |
| 342 |
|
| 343 |
add_action( 'wp_enqueue_scripts', 'wpa_enqueue_js', 100 ); |
| 344 |
/** |
| 345 |
* Enqueue JS needed for WP Accessibility options. |
| 346 |
*/ |
| 347 |
function wpa_enqueue_js() { |
| 348 |
$version = ( SCRIPT_DEBUG ) ? wp_rand( 10000, 100000 ) : wpa_check_version(); |
| 349 |
$visibility = ( 'on' === get_option( 'asl_visible' ) ) ? 'wpa-visible' : 'wpa-hide'; |
| 350 |
$output = ''; |
| 351 |
if ( 'on' === get_option( 'asl_enable' ) && ! wpa_accessible_theme() ) { |
| 352 |
$html = ''; |
| 353 |
/** |
| 354 |
* Customize the default value for extra skiplink. Turns on extra skiplink options in WP Accessibility versions > 1.9.0. |
| 355 |
* |
| 356 |
* @hook asl_extra_target |
| 357 |
* @param {string} Value to use as a default for the extra skiplink. |
| 358 |
* |
| 359 |
* @return {string} |
| 360 |
*/ |
| 361 |
$default_extra = apply_filters( 'asl_extra_target', '' ); |
| 362 |
$extra = get_option( 'asl_extra_target', $default_extra ); |
| 363 |
$extra = ( wpa_is_url( $extra ) ) ? esc_url( $extra ) : str_replace( '#', '', esc_attr( $extra ) ); |
| 364 |
if ( '' !== $extra && ! wpa_is_url( $extra ) ) { |
| 365 |
$extra = "#$extra"; |
| 366 |
} |
| 367 |
$extra_text = (string) stripslashes( get_option( 'asl_extra_text' ) ); |
| 368 |
$content = str_replace( '#', '', esc_attr( get_option( 'asl_content' ) ) ); |
| 369 |
$nav = str_replace( '#', '', esc_attr( get_option( 'asl_navigation' ) ) ); |
| 370 |
/** |
| 371 |
* Customize the default value for sitemap skiplink. Turns on sitemap skiplink options in WP Accessibility versions > 1.9.0. |
| 372 |
* |
| 373 |
* @hook asl_sitemap |
| 374 |
* @param {string} Value to use as a default for the sitemap. |
| 375 |
* |
| 376 |
* @return {string} |
| 377 |
*/ |
| 378 |
$default_sitemap = apply_filters( 'asl_sitemap', '' ); |
| 379 |
$sitemap = esc_url( get_option( 'asl_sitemap', $default_sitemap ) ); |
| 380 |
$html .= ( '' !== $content ) ? "<a href=\"#$content\" class='no-scroll et_smooth_scroll_disabled'>" . __( 'Skip to Content', 'wp-accessibility' ) . '</a> ' : ''; |
| 381 |
$html .= ( '' !== $nav ) ? "<a href=\"#$nav\" class='no-scroll et_smooth_scroll_disabled'>" . __( 'Skip to navigation', 'wp-accessibility' ) . '</a> ' : ''; |
| 382 |
$html .= ( '' !== $sitemap ) ? "<a href=\"$sitemap\" class='no-scroll et_smooth_scroll_disabled'>" . __( 'Site map', 'wp-accessibility' ) . '</a> ' : ''; |
| 383 |
$html .= ( '' !== $extra && '' !== $extra_text ) ? "<a href=\"$extra\" class='no-scroll et_smooth_scroll_disabled'>$extra_text</a> " : ''; |
| 384 |
$is_rtl = ( is_rtl() ) ? '-rtl' : '-ltr'; |
| 385 |
$skiplinks = __( 'Skip links', 'wp-accessibility' ); |
| 386 |
$output = ( '' !== $html ) ? "<div class=\"$visibility$is_rtl\" id=\"skiplinks\" role=\"navigation\" aria-label=\"" . esc_attr( $skiplinks ) . "\">$html</div>" : ''; |
| 387 |
} |
| 388 |
|
| 389 |
$labels = array( |
| 390 |
's' => _x( 'Search', 'Search field label', 'wp-accessibility' ), |
| 391 |
'author' => _x( 'Name', 'Commenter name label', 'wp-accessibility' ), |
| 392 |
'email' => _x( 'Email', 'Commenter email label', 'wp-accessibility' ), |
| 393 |
'url' => _x( 'Website', 'Commenter website label', 'wp-accessibility' ), |
| 394 |
'comment' => _x( 'Comment', 'Commenter message label', 'wp-accessibility' ), |
| 395 |
); |
| 396 |
/** |
| 397 |
* Customize labels passed to automatically label core WordPress fields. |
| 398 |
* |
| 399 |
* @hook wpa_labels |
| 400 |
* @param {array} $labels Array of labels for search and comment fields. |
| 401 |
* |
| 402 |
* @return {array} |
| 403 |
*/ |
| 404 |
$labels = apply_filters( 'wpa_labels', $labels ); |
| 405 |
$dir = ''; |
| 406 |
$lang = ''; |
| 407 |
if ( 'off' !== get_option( 'wpa_lang_attributes' ) && ! wpa_accessible_theme() ) { |
| 408 |
$dir = ( is_rtl() ) ? 'rtl' : 'ltr'; |
| 409 |
$lang = get_bloginfo( 'language' ); |
| 410 |
} |
| 411 |
|
| 412 |
if ( SCRIPT_DEBUG ) { |
| 413 |
$wpajs = plugins_url( 'js/wp-accessibility.js', __FILE__ ); |
| 414 |
} else { |
| 415 |
$wpajs = plugins_url( 'js/wp-accessibility.min.js', __FILE__ ); |
| 416 |
} |
| 417 |
wp_enqueue_script( |
| 418 |
'wp-accessibility', |
| 419 |
$wpajs, |
| 420 |
array(), |
| 421 |
$version, |
| 422 |
array( |
| 423 |
'in_footer' => true, |
| 424 |
'strategy' => 'defer', |
| 425 |
) |
| 426 |
); |
| 427 |
|
| 428 |
$longdesc_type = false; |
| 429 |
if ( 'link' === get_option( 'wpa_longdesc' ) ) { |
| 430 |
$longdesc_type = 'link'; |
| 431 |
} elseif ( 'jquery' === get_option( 'wpa_longdesc' ) || 'button' === get_option( 'wpa_longdesc' ) ) { |
| 432 |
$longdesc_type = 'button'; |
| 433 |
} |
| 434 |
/** |
| 435 |
* Modify the selector used to attach the alt attribute toggle button on images. Default `.hentry img[alt!=""], .comment-content img[alt!=""]`. |
| 436 |
* |
| 437 |
* @hook wpa_show_alt_selector |
| 438 |
* |
| 439 |
* @since 2.0.0 |
| 440 |
* |
| 441 |
* @param {string} $selector Valid CSS selector string. |
| 442 |
* |
| 443 |
* @return {string} |
| 444 |
*/ |
| 445 |
$selector = apply_filters( 'wpa_show_alt_selector', '.hentry img[alt]:not([alt=""]), .comment-content img[alt]:not([alt=""]), #content img[alt]:not([alt=""]),.entry-content img[alt]:not([alt=""])' ); |
| 446 |
$alttext = ( 'on' === get_option( 'wpa_show_alt' ) ) ? true : false; |
| 447 |
|
| 448 |
/** |
| 449 |
* Filter target element selector for underlines. Default `a`. |
| 450 |
* |
| 451 |
* @hook wpa_underline_target |
| 452 |
* |
| 453 |
* @param {string} $el Target element selector. |
| 454 |
* |
| 455 |
* @return string |
| 456 |
*/ |
| 457 |
$target = apply_filters( 'wpa_underline_target', 'a' ); |
| 458 |
/** |
| 459 |
* Filter whether console log messages about remediation actions will be sent. |
| 460 |
* |
| 461 |
* @hook wpa_view_remediation_logs |
| 462 |
* |
| 463 |
* @param {bool} $visible Default `true` if user is logged in and has capabilities to manage options. |
| 464 |
* |
| 465 |
* @return {bool} |
| 466 |
*/ |
| 467 |
$errors_enabled = apply_filters( 'wpa_view_remediation_logs', current_user_can( 'manage_options' ) ); |
| 468 |
$track = ( '' === get_option( 'wpa_track_stats' ) ) ? current_user_can( 'manage_options' ) : true; |
| 469 |
$track = ( 'off' === get_option( 'wpa_track_stats' ) ) ? false : $track; |
| 470 |
/** |
| 471 |
* Filter whether data from views will be tracked. |
| 472 |
* |
| 473 |
* @hook wpa_track_view_statistics |
| 474 |
* |
| 475 |
* @param {bool} $visible Default `true` if user is logged in and has capabilities to manage options or if enabled in settings. |
| 476 |
* |
| 477 |
* @return {bool} |
| 478 |
*/ |
| 479 |
$tracking_enabled = apply_filters( 'wpa_track_view_statistics', $track ); |
| 480 |
$apply_labels = ( 'off' === get_option( 'wpa_labels' ) ) ? false : true; |
| 481 |
/** |
| 482 |
* Filter whether automatic labeling is enabled. |
| 483 |
* |
| 484 |
* @hook wpa_disable_labels |
| 485 |
* |
| 486 |
* @param {bool} $enabled True if labels are automatically added. |
| 487 |
* |
| 488 |
* @return {bool} |
| 489 |
*/ |
| 490 |
$apply_labels = apply_filters( 'wpa_disable_labels', $apply_labels ); |
| 491 |
$remove_titles = ( 'off' === get_option( 'wpa_remove_titles' ) ) ? false : true; |
| 492 |
/** |
| 493 |
* Filter whether title attributes are removed. Used to be image titles only, now applies buttons and links, as well. |
| 494 |
* |
| 495 |
* @hook wpa_remove_titles |
| 496 |
* |
| 497 |
* @param {bool} $enabled True if title attributes are removed. |
| 498 |
* |
| 499 |
* @return {bool} |
| 500 |
*/ |
| 501 |
$remove_titles = apply_filters( 'wpa_remove_titles', $remove_titles ); |
| 502 |
$set_viewport = ( 'off' === get_option( 'wpa_viewport' ) ) ? false : true; |
| 503 |
/** |
| 504 |
* Filter whether WP Accessibility manipulates the viewport. |
| 505 |
* |
| 506 |
* @hook wpa_viewport |
| 507 |
* |
| 508 |
* @param {bool} $enabled True viewport can be modified. |
| 509 |
* |
| 510 |
* @return {bool} |
| 511 |
*/ |
| 512 |
$viewport = apply_filters( 'wpa_viewport', $set_viewport ); |
| 513 |
wp_localize_script( |
| 514 |
'wp-accessibility', |
| 515 |
'wpa', |
| 516 |
array( |
| 517 |
'skiplinks' => array( |
| 518 |
'enabled' => ( 'on' === get_option( 'asl_enable' ) ) ? true : false, |
| 519 |
'output' => $output, |
| 520 |
), |
| 521 |
'target' => ( 'on' === get_option( 'wpa_target' ) ) ? true : false, |
| 522 |
'tabindex' => ( 'on' === get_option( 'wpa_tabindex' ) ) ? true : false, |
| 523 |
'underline' => array( |
| 524 |
'enabled' => ( 'on' === get_option( 'wpa_underline' ) ) ? true : false, |
| 525 |
'target' => $target, |
| 526 |
), |
| 527 |
'videos' => ( 'on' === get_option( 'wpa_videos' ) ) ? true : false, |
| 528 |
'dir' => $dir, |
| 529 |
'viewport' => $viewport, |
| 530 |
'lang' => $lang, |
| 531 |
'titles' => $remove_titles, |
| 532 |
'labels' => $apply_labels, |
| 533 |
'wpalabels' => $labels, |
| 534 |
'alt' => $alttext, |
| 535 |
'altSelector' => $selector, |
| 536 |
'current' => ( version_compare( $GLOBALS['wp_version'], '5.3', '<' ) ) ? true : false, |
| 537 |
'errors' => ( $errors_enabled ) ? true : false, |
| 538 |
'tracking' => ( $tracking_enabled ) ? true : false, |
| 539 |
'ajaxurl' => admin_url( 'admin-ajax.php' ), |
| 540 |
'security' => wp_create_nonce( 'wpa-stats-action' ), |
| 541 |
'action' => 'wpa_stats_action', |
| 542 |
'url' => ( function_exists( 'wpa_get_current_url' ) ) ? wpa_get_current_url() : 'disabled', |
| 543 |
'post_id' => ( is_singular() ) ? get_the_ID() : '', |
| 544 |
'continue' => ( wp_is_block_theme() ) ? true : false, |
| 545 |
'pause' => __( 'Pause video', 'wp-accessibility' ), |
| 546 |
'play' => __( 'Play video', 'wp-accessibility' ), |
| 547 |
'restUrl' => get_rest_url( null, 'wp/v2/media' ), |
| 548 |
'ldType' => $longdesc_type, |
| 549 |
'ldHome' => home_url(), |
| 550 |
'ldText' => '<span class="dashicons dashicons-media-text" aria-hidden="true"></span><span class="screen-reader">' . __( 'Long Description', 'wp-accessibility' ) . '</span>', |
| 551 |
) |
| 552 |
); |
| 553 |
} |
| 554 |
|
| 555 |
// courtesy of Graham Armfield (modified). |
| 556 |
add_action( 'admin_bar_menu', 'wpa_logout_item', 11 ); |
| 557 |
/** |
| 558 |
* Add adminbar menu logout. |
| 559 |
* |
| 560 |
* @link http://www.coolfields.co.uk/2013/02/wordpress-permanently-visible-log-out-link-plugin-version-0-1/ |
| 561 |
* @param object $admin_bar Admin bar object. |
| 562 |
*/ |
| 563 |
function wpa_logout_item( $admin_bar ) { |
| 564 |
if ( ! is_user_logged_in() || 'on' === get_option( 'wpa_disable_logout', 'true' ) ) { |
| 565 |
return; |
| 566 |
} |
| 567 |
|
| 568 |
$args = array( |
| 569 |
'id' => 'wpa-logout', |
| 570 |
'title' => __( 'Log Out', 'wp-accessibility' ), |
| 571 |
'href' => wp_logout_url(), |
| 572 |
); |
| 573 |
$admin_bar->add_node( $args ); |
| 574 |
} |
| 575 |
|
| 576 |
add_filter( 'posts_clauses', 'wpa_search_attachment_alt', 20, 2 ); |
| 577 |
/** |
| 578 |
* Allow users to search alt attributes in the media library. |
| 579 |
* |
| 580 |
* @param array $clauses WordPress post query clauses. |
| 581 |
* @param object $query WordPress query object. |
| 582 |
* |
| 583 |
* @return array |
| 584 |
*/ |
| 585 |
function wpa_search_attachment_alt( $clauses, $query ) { |
| 586 |
if ( is_admin() && 'on' === get_option( 'wpa_search_alt' ) ) { |
| 587 |
global $wpdb; |
| 588 |
if ( isset( $query->query['post_type'] ) && 'attachment' === $query->query['post_type'] && '' !== $query->query_vars['s'] ) { |
| 589 |
$clauses['join'] = " LEFT JOIN {$wpdb->postmeta} AS sq1 ON ( {$wpdb->posts}.ID = sq1.post_id AND ( sq1.meta_key = '_wp_attached_file' OR sq1.meta_key = '_wp_attachment_image_alt' ) )"; |
| 590 |
} |
| 591 |
} |
| 592 |
|
| 593 |
return $clauses; |
| 594 |
} |
| 595 |
|
| 596 |
add_filter( 'mce_css', 'wpa_diagnostic_css' ); |
| 597 |
/** |
| 598 |
* Add diagnostic CSS. |
| 599 |
* |
| 600 |
* @param string $mce_css Existing CSS. |
| 601 |
* |
| 602 |
* @return full string css. |
| 603 |
*/ |
| 604 |
function wpa_diagnostic_css( $mce_css ) { |
| 605 |
if ( get_option( 'wpa_diagnostics' ) === 'on' ) { |
| 606 |
$mce_css .= ', ' . plugins_url( 'css/diagnostic.css', __FILE__ ); |
| 607 |
} |
| 608 |
|
| 609 |
return $mce_css; |
| 610 |
} |
| 611 |
|
| 612 |
if ( 'on' === get_option( 'wpa_search' ) ) { |
| 613 |
add_filter( 'pre_get_posts', 'wpa_filter' ); |
| 614 |
} |
| 615 |
|
| 616 |
/** |
| 617 |
* Filter search queries to ensure that an error page is returned if no results. |
| 618 |
* |
| 619 |
* @param object $query Main WP_Query object. |
| 620 |
* |
| 621 |
* @return $query. |
| 622 |
*/ |
| 623 |
function wpa_filter( $query ) { |
| 624 |
if ( ! is_admin() ) { |
| 625 |
if ( isset( $_GET['s'] ) && '' === trim( $_GET['s'] ) && ( $query->is_main_query() ) ) { |
| 626 |
$query->query_vars['s'] = ' '; |
| 627 |
$query->set( 'is_search', 1 ); |
| 628 |
add_action( 'template_include', 'wpa_search_error' ); |
| 629 |
} |
| 630 |
} |
| 631 |
|
| 632 |
return $query; |
| 633 |
} |
| 634 |
|
| 635 |
/** |
| 636 |
* Locate template for the search error page. |
| 637 |
* |
| 638 |
* @param string $template Current template name. |
| 639 |
* |
| 640 |
* @return string New template name if changed. |
| 641 |
*/ |
| 642 |
function wpa_search_error( $template ) { |
| 643 |
$search = locate_template( 'search.php' ); |
| 644 |
if ( $search ) { |
| 645 |
return $search; |
| 646 |
} |
| 647 |
|
| 648 |
return $template; |
| 649 |
} |
| 650 |
|
| 651 |
if ( 'on' === get_option( 'wpa_more' ) && ! wpa_accessible_theme() ) { |
| 652 |
add_filter( |
| 653 |
'body_class', |
| 654 |
function ( $classes ) { |
| 655 |
return array_merge( $classes, array( 'wpa-excerpt' ) ); |
| 656 |
} |
| 657 |
); |
| 658 |
add_filter( 'get_the_excerpt', 'wpa_custom_excerpt_more', 100 ); |
| 659 |
add_filter( 'excerpt_more', 'wpa_excerpt_more', 100 ); |
| 660 |
add_filter( 'the_content_more_link', 'wpa_content_more', 100 ); |
| 661 |
} |
| 662 |
|
| 663 |
/** |
| 664 |
* Custom "Continue Reading" with post title context. |
| 665 |
* |
| 666 |
* @param int $id Post ID. |
| 667 |
* |
| 668 |
* @return string HTML link & text. |
| 669 |
*/ |
| 670 |
function wpa_continue_reading( $id ) { |
| 671 |
return '<a class="continue" href="' . esc_url( get_permalink( $id ) ) . '">' . get_option( 'wpa_continue' ) . '<span> ' . get_the_title( $id ) . '</span></a>'; |
| 672 |
} |
| 673 |
|
| 674 |
/** |
| 675 |
* Add custom continue reading text to excerpts. |
| 676 |
* |
| 677 |
* @return string Ellipsis + continue reading text. |
| 678 |
*/ |
| 679 |
function wpa_excerpt_more() { |
| 680 |
global $id; |
| 681 |
|
| 682 |
return '… ' . wpa_continue_reading( $id ); |
| 683 |
} |
| 684 |
|
| 685 |
/** |
| 686 |
* Add custom continue reading text to content. |
| 687 |
* |
| 688 |
* @return continue reading text. |
| 689 |
*/ |
| 690 |
function wpa_content_more() { |
| 691 |
global $id; |
| 692 |
|
| 693 |
return wpa_continue_reading( $id ); |
| 694 |
} |
| 695 |
|
| 696 |
/** |
| 697 |
* Add custom continue reading text to custom excerpts. |
| 698 |
* |
| 699 |
* @param string $output Existing content. |
| 700 |
* |
| 701 |
* @return continue reading text. |
| 702 |
*/ |
| 703 |
function wpa_custom_excerpt_more( $output ) { |
| 704 |
if ( has_excerpt() && ! is_attachment() ) { |
| 705 |
global $id; |
| 706 |
$output .= ' ' . wpa_continue_reading( $id ); // insert a blank space. |
| 707 |
} |
| 708 |
|
| 709 |
return $output; |
| 710 |
} |
| 711 |
|
| 712 |
/** |
| 713 |
* Create support form. |
| 714 |
*/ |
| 715 |
function wpa_get_support_form() { |
| 716 |
global $current_user; |
| 717 |
$current_user = wp_get_current_user(); |
| 718 |
$request = ''; |
| 719 |
$version = wpa_check_version(); |
| 720 |
// send fields for all plugins. |
| 721 |
$wp_version = get_bloginfo( 'version' ); |
| 722 |
$home_url = home_url(); |
| 723 |
$wp_url = site_url(); |
| 724 |
$language = get_bloginfo( 'language' ); |
| 725 |
$charset = get_bloginfo( 'charset' ); |
| 726 |
// server. |
| 727 |
$php_version = phpversion(); |
| 728 |
|
| 729 |
// theme data. |
| 730 |
$theme = wp_get_theme(); |
| 731 |
$theme_name = $theme->get( 'Name' ); |
| 732 |
$theme_uri = $theme->get( 'ThemeURI' ); |
| 733 |
$theme_parent = $theme->get( 'Template' ); |
| 734 |
$theme_parent = ( $theme_parent ) ? $theme_parent : __( 'None', 'wp-accessibility' ); |
| 735 |
$theme_version = $theme->get( 'Version' ); |
| 736 |
|
| 737 |
// plugin data. |
| 738 |
$plugins = get_plugins(); |
| 739 |
$plugins_string = ''; |
| 740 |
foreach ( array_keys( $plugins ) as $key ) { |
| 741 |
if ( is_plugin_active( $key ) ) { |
| 742 |
$plugin =& $plugins[ $key ]; |
| 743 |
$plugin_name = $plugin['Name']; |
| 744 |
$plugin_uri = $plugin['PluginURI']; |
| 745 |
$plugin_version = $plugin['Version']; |
| 746 |
$plugins_string .= "$plugin_name: $plugin_version; $plugin_uri\n"; |
| 747 |
} |
| 748 |
} |
| 749 |
$data = " |
| 750 |
================ Installation Data ==================== |
| 751 |
==WP Accessibility== |
| 752 |
Version: $version |
| 753 |
|
| 754 |
==WordPress:== |
| 755 |
Version: $wp_version |
| 756 |
URL: $home_url |
| 757 |
Install: $wp_url |
| 758 |
Language: $language |
| 759 |
Charset: $charset |
| 760 |
Admin Email: $current_user->user_email |
| 761 |
|
| 762 |
==Extra info:== |
| 763 |
PHP Version: $php_version |
| 764 |
Server Software: $_SERVER[SERVER_SOFTWARE] |
| 765 |
User Agent: $_SERVER[HTTP_USER_AGENT] |
| 766 |
|
| 767 |
==Theme:== |
| 768 |
Name: $theme_name |
| 769 |
URI: $theme_uri |
| 770 |
Parent: $theme_parent |
| 771 |
Version: $theme_version |
| 772 |
|
| 773 |
==Active Plugins:== |
| 774 |
$plugins_string |
| 775 |
"; |
| 776 |
if ( isset( $_POST['wpa_support'] ) ) { |
| 777 |
$nonce = $_REQUEST['_wpnonce']; |
| 778 |
if ( ! wp_verify_nonce( $nonce, 'wpa-nonce' ) ) { |
| 779 |
wp_die( 'WP Accessibility: Security check failed' ); |
| 780 |
} |
| 781 |
$request = ( ! empty( $_POST['support_request'] ) ) ? sanitize_textarea_field( wp_unslash( $_POST['support_request'] ) ) : false; |
| 782 |
$has_donated = ( 'on' === $_POST['has_donated'] ) ? 'Donor' : 'No donation'; |
| 783 |
$subject = "WP Accessibility support request. $has_donated"; |
| 784 |
$message = $request . "\n\n" . $data; |
| 785 |
// Get the site domain and get rid of www. from pluggable.php. |
| 786 |
$sitename = sanitize_text_field( strtolower( $_SERVER['SERVER_NAME'] ) ); |
| 787 |
if ( 'www.' === substr( $sitename, 0, 4 ) ) { |
| 788 |
$sitename = substr( $sitename, 4 ); |
| 789 |
} |
| 790 |
$from_email = 'wordpress@' . $sitename; |
| 791 |
$from = "From: $current_user->display_name <$from_email>\r\nReply-to: $current_user->display_name <$current_user->user_email>\r\n"; |
| 792 |
|
| 793 |
if ( ! $request ) { |
| 794 |
echo "<div class='message error'><p>" . esc_html__( 'Please describe your problem.', 'wp-accessibility' ) . '</p></div>'; |
| 795 |
} else { |
| 796 |
wp_mail( 'plugins@joedolson.com', $subject, $message, $from ); |
| 797 |
if ( 'Donor' === $has_donated ) { |
| 798 |
echo "<div class='message updated'><p>" . esc_html__( 'Thank you for supporting the continuing development of this plug-in! I\'ll get back to you as soon as I can.', 'wp-accessibility' ) . '</p></div>'; |
| 799 |
} else { |
| 800 |
echo "<div class='message updated'><p>" . esc_html__( 'I cannot provide support, but will treat your request as a bug report, and will incorporate any permanent solutions I discover into the plug-in.', 'wp-accessibility' ) . '</p></div>'; |
| 801 |
} |
| 802 |
} |
| 803 |
} |
| 804 |
$admin_url = admin_url( 'admin.php?page=wp-accessibility' ); |
| 805 |
|
| 806 |
echo " |
| 807 |
<form method='post' action='" . esc_url( $admin_url ) . "'> |
| 808 |
<div><input type='hidden' name='_wpnonce' value='" . wp_create_nonce( 'wpa-nonce' ) . "' /></div> |
| 809 |
<div>"; |
| 810 |
echo ' |
| 811 |
<p> |
| 812 |
<code>' . __( 'From:', 'wp-accessibility' ) . " \"$current_user->display_name\" <$current_user->user_email></code> |
| 813 |
</p> |
| 814 |
<p> |
| 815 |
<input type='checkbox' name='has_donated' id='has_donated' value='on' /> <label for='has_donated'>"; |
| 816 |
// Translators: Donation URL. |
| 817 |
echo sprintf( __( 'I <a href="%s">made a donation</a> to help support this plugin', 'wp-accessibility' ), 'https://www.joedolson.com/donate/' ) . "</label> |
| 818 |
</p> |
| 819 |
<p> |
| 820 |
<label for='support_request'>" . __( 'Support Request:', 'wp-accessibility' ) . "</label><br /><textarea name='support_request' required id='support_request' cols='80' rows='10' class='widefat'>" . esc_textarea( stripslashes( $request ) ) . "</textarea> |
| 821 |
</p> |
| 822 |
<p> |
| 823 |
<input type='submit' value='" . __( 'Send Support Request', 'wp-accessibility' ) . "' name='wpa_support' class='button-primary' /> |
| 824 |
</p> |
| 825 |
<p>" . __( 'The following additional information will be sent with your support request:', 'wp-accessibility' ) . "</p> |
| 826 |
<div class='wpa_support'> |
| 827 |
" . wpautop( $data ) . ' |
| 828 |
</div> |
| 829 |
</div> |
| 830 |
</form>'; |
| 831 |
} |
| 832 |
|
| 833 |
/** |
| 834 |
* Tests whether the current theme is labeled accessibility-ready |
| 835 |
* |
| 836 |
* @return boolean True if this theme has the tag 'accessibility-ready'. |
| 837 |
*/ |
| 838 |
function wpa_accessible_theme() { |
| 839 |
// This is Oxygen Builder, and the active theme test is invalid. |
| 840 |
if ( defined( 'CT_VERSION' ) ) { |
| 841 |
return false; |
| 842 |
} |
| 843 |
$theme = wp_get_theme(); |
| 844 |
$tags = $theme->get( 'Tags' ); |
| 845 |
if ( is_array( $tags ) && in_array( 'accessibility-ready', $tags, true ) ) { |
| 846 |
return true; |
| 847 |
} |
| 848 |
return false; |
| 849 |
} |
| 850 |
|
| 851 |
/** |
| 852 |
* Disable full screen block editor by default. |
| 853 |
*/ |
| 854 |
function wpa_disable_editor_fullscreen_by_default() { |
| 855 |
if ( 'on' === get_option( 'wpa_disable_fullscreen' ) ) { |
| 856 |
$script = "window.onload = function() { const isFullscreenMode = wp.data.select( 'core/edit-post' ).isFeatureActive( 'fullscreenMode' ); if ( isFullscreenMode ) { wp.data.dispatch( 'core/edit-post' ).toggleFeature( 'fullscreenMode' ); } }"; |
| 857 |
wp_add_inline_script( 'wp-blocks', $script ); |
| 858 |
} |
| 859 |
} |
| 860 |
add_action( 'enqueue_block_editor_assets', 'wpa_disable_editor_fullscreen_by_default' ); |
| 861 |
|
| 862 |
/** |
| 863 |
* Disable file embeds by default. |
| 864 |
* |
| 865 |
* @param array $blockdata Array of block configuration meta data. |
| 866 |
* |
| 867 |
* @return array |
| 868 |
*/ |
| 869 |
function wpa_disable_file_embed_by_default( $blockdata ) { |
| 870 |
if ( 'core/file' === $blockdata['name'] && 'on' === get_option( 'wpa_disable_file_embed' ) ) { |
| 871 |
if ( isset( $blockdata['attributes']['displayPreview'] ) ) { |
| 872 |
$blockdata['attributes']['displayPreview']['default'] = false; |
| 873 |
} |
| 874 |
} |
| 875 |
|
| 876 |
return $blockdata; |
| 877 |
} |
| 878 |
add_filter( 'block_type_metadata', 'wpa_disable_file_embed_by_default' ); |
| 879 |
|
| 880 |
/** |
| 881 |
* Remove the H1 heading from the headings block. |
| 882 |
* |
| 883 |
* @param array $args Block type arguments array. |
| 884 |
* @param string $block_type Block type declaration. |
| 885 |
* |
| 886 |
* @return array |
| 887 |
*/ |
| 888 |
function wpa_remove_h1( $args, $block_type ) { |
| 889 |
// The H1 is not allowed by default. |
| 890 |
$allowed = get_option( 'wpa_allow_h1', '' ); |
| 891 |
if ( 'on' !== $allowed ) { |
| 892 |
// Only proceed if the current block is a Heading. |
| 893 |
if ( 'core/heading' !== $block_type ) { |
| 894 |
return $args; |
| 895 |
} |
| 896 |
|
| 897 |
// Declare valid heading levels. |
| 898 |
$args['attributes']['levelOptions']['default'] = array( 2, 3, 4, 5, 6 ); |
| 899 |
} |
| 900 |
return $args; |
| 901 |
} |
| 902 |
add_filter( 'register_block_type_args', 'wpa_remove_h1', 10, 2 ); |
| 903 |
|
| 904 |
/** |
| 905 |
* Insert content summary at top of article content. |
| 906 |
* |
| 907 |
* @param string $content Post content. |
| 908 |
* |
| 909 |
* @return string |
| 910 |
*/ |
| 911 |
function wpa_content_summary( $content ) { |
| 912 |
if ( is_singular() && wpa_in_post_type( get_queried_object_id() ) ) { |
| 913 |
$post_id = get_the_ID(); |
| 914 |
$summary = wpa_get_content_summary( $post_id ); |
| 915 |
if ( ! $summary ) { |
| 916 |
return $content; |
| 917 |
} |
| 918 |
$content = $summary . $content; |
| 919 |
} |
| 920 |
|
| 921 |
return $content; |
| 922 |
} |
| 923 |
add_filter( 'the_content', 'wpa_content_summary' ); |
| 924 |
|
| 925 |
/** |
| 926 |
* Get a simplified summary for content. |
| 927 |
* |
| 928 |
* @param int $post_id Post ID. |
| 929 |
* |
| 930 |
* @return string |
| 931 |
*/ |
| 932 |
function wpa_get_content_summary( $post_id ) { |
| 933 |
$summary = trim( get_post_meta( $post_id, '_wpa_content_summary', true ) ); |
| 934 |
if ( ! $summary ) { |
| 935 |
return ''; |
| 936 |
} |
| 937 |
/** |
| 938 |
* Filter the heading text for content summaries. Default `Summary`. |
| 939 |
* |
| 940 |
* @hook wpa_summary_heading |
| 941 |
* |
| 942 |
* @param {string} $heading Heading text. |
| 943 |
* @param {int} $post_id Post ID. |
| 944 |
* |
| 945 |
* @return {string} |
| 946 |
*/ |
| 947 |
$heading = apply_filters( 'wpa_summary_heading', __( 'Summary', 'wp-accessibility' ), $post_id ); |
| 948 |
/** |
| 949 |
* Filter the heading level for content summaries. Default `h2`. |
| 950 |
* |
| 951 |
* @hook wpa_summary_heading_level |
| 952 |
* |
| 953 |
* @param {string} $heading Element selector. |
| 954 |
* @param {int} $post_id Post ID. |
| 955 |
* |
| 956 |
* @return {string} |
| 957 |
*/ |
| 958 |
$level = apply_filters( 'wpa_summary_heading_level', 'h2', $post_id ); |
| 959 |
|
| 960 |
$heading = "<$level>" . $heading . "</$level>"; |
| 961 |
$content = '<section class="wpa-content-summary" id="summary-' . absint( $post_id ) . '"><div class="wpa-content-summary-inner">' . $heading . wpautop( wp_kses_post( stripslashes( $summary ) ) ) . '</div></section>'; |
| 962 |
|
| 963 |
return $content; |
| 964 |
} |
| 965 |
|
| 966 |
/** |
| 967 |
* Check whether a given post is in an allowed post type for content summaries. |
| 968 |
* |
| 969 |
* @param integer $post_id Post ID. |
| 970 |
* |
| 971 |
* @return boolean True if post is allowed, false otherwise. |
| 972 |
*/ |
| 973 |
function wpa_in_post_type( $post_id ) { |
| 974 |
$settings = get_option( 'wpa_post_types', array() ); |
| 975 |
if ( is_array( $settings ) && ! empty( $settings ) ) { |
| 976 |
$type = get_post_type( $post_id ); |
| 977 |
if ( in_array( $type, $settings, true ) ) { |
| 978 |
return true; |
| 979 |
} |
| 980 |
} |
| 981 |
|
| 982 |
return false; |
| 983 |
} |
| 984 |
|
| 985 |
add_action( 'admin_menu', 'wpa_add_outer_box' ); |
| 986 |
/** |
| 987 |
* Add metabox for content summaries. |
| 988 |
*/ |
| 989 |
function wpa_add_outer_box() { |
| 990 |
$allowed = get_option( 'wpa_post_types', array() ); |
| 991 |
if ( is_array( $allowed ) ) { |
| 992 |
foreach ( $allowed as $post_type ) { |
| 993 |
add_meta_box( 'wpa_content_summary_container', __( 'Content Summary', 'wp-accessibility' ), 'wpa_add_inner_box', $post_type, 'normal', 'high' ); |
| 994 |
} |
| 995 |
} |
| 996 |
} |
| 997 |
|
| 998 |
/** |
| 999 |
* Render content summary form. |
| 1000 |
*/ |
| 1001 |
function wpa_add_inner_box() { |
| 1002 |
global $post; |
| 1003 |
$summary = get_post_meta( $post->ID, '_wpa_content_summary', true ); |
| 1004 |
$nonce = wp_nonce_field( 'wpa-nonce-field', 'wpa_nonce_name', true, false ); |
| 1005 |
echo $nonce; |
| 1006 |
?> |
| 1007 |
<p class='wpa-content-summary-field'> |
| 1008 |
<label for="wpa_content_summary"><?php _e( 'Simple Content Summary', 'wp-accessibility' ); ?></label><br/> |
| 1009 |
<textarea class="wpa-content-summary widefat" name="wpa_content_summary" id="wpa_content_summary" rows="4" cols="60" aria-describedy="content-summary-description"><?php echo esc_textarea( $summary ); ?></textarea> |
| 1010 |
<span id="content-summary-description"><?php _e( 'Provide a simplified summary to aid comprehension of complex content.', 'wp-accessibility' ); ?></span> |
| 1011 |
</p> |
| 1012 |
<?php |
| 1013 |
} |
| 1014 |
|
| 1015 |
/** |
| 1016 |
* Save content summary from post meta box. |
| 1017 |
* |
| 1018 |
* @param int $id Post ID. |
| 1019 |
* @param object $post Post. |
| 1020 |
* |
| 1021 |
* @return int |
| 1022 |
*/ |
| 1023 |
function wpa_save_content_summary( $id, $post ) { |
| 1024 |
if ( empty( $_POST ) || ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) || wp_is_post_revision( $id ) || isset( $_POST['_inline_edit'] ) || ( defined( 'DOING_AJAX' ) && DOING_AJAX ) || ! wpa_in_post_type( $id ) ) { |
| 1025 |
return $id; |
| 1026 |
} |
| 1027 |
|
| 1028 |
// verify this came from our screen and with proper authorization. |
| 1029 |
// because save_post can be triggered at other times. |
| 1030 |
if ( isset( $_POST['wpa_nonce_name'] ) ) { |
| 1031 |
if ( ! wp_verify_nonce( $_POST['wpa_nonce_name'], 'wpa-nonce-field' ) ) { |
| 1032 |
return $id; |
| 1033 |
} |
| 1034 |
$summary = isset( $_POST['wpa_content_summary'] ) ? wp_kses_post( $_POST['wpa_content_summary'] ) : ''; |
| 1035 |
update_post_meta( $id, '_wpa_content_summary', $summary ); |
| 1036 |
} |
| 1037 |
|
| 1038 |
return $id; |
| 1039 |
} |
| 1040 |
add_action( 'save_post', 'wpa_save_content_summary', 10, 2 ); |
| 1041 |
|
