form-widget.php
| 1 | <?php |
| 2 | |
| 3 | /* |
| 4 | * ACF Widget Form Class |
| 5 | * |
| 6 | * All the logic for adding fields to widgets |
| 7 | * |
| 8 | * @class acf_form_widget |
| 9 | * @package ACF |
| 10 | * @subpackage Forms |
| 11 | */ |
| 12 | |
| 13 | if ( ! class_exists( 'acf_form_widget' ) ) : |
| 14 | |
| 15 | class acf_form_widget { |
| 16 | |
| 17 | |
| 18 | /* |
| 19 | * __construct |
| 20 | * |
| 21 | * This function will setup the class functionality |
| 22 | * |
| 23 | * @type function |
| 24 | * @date 5/03/2014 |
| 25 | * @since 5.0.0 |
| 26 | * |
| 27 | * @param n/a |
| 28 | * @return n/a |
| 29 | */ |
| 30 | |
| 31 | function __construct() { |
| 32 | |
| 33 | // vars |
| 34 | $this->preview_values = array(); |
| 35 | $this->preview_reference = array(); |
| 36 | $this->preview_errors = array(); |
| 37 | |
| 38 | // actions |
| 39 | add_action( 'admin_enqueue_scripts', array( $this, 'admin_enqueue_scripts' ) ); |
| 40 | add_action( 'in_widget_form', array( $this, 'edit_widget' ), 10, 3 ); |
| 41 | add_action( 'acf/validate_save_post', array( $this, 'acf_validate_save_post' ), 5 ); |
| 42 | |
| 43 | // filters |
| 44 | add_filter( 'widget_update_callback', array( $this, 'save_widget' ), 10, 4 ); |
| 45 | |
| 46 | } |
| 47 | |
| 48 | |
| 49 | /* |
| 50 | * admin_enqueue_scripts |
| 51 | * |
| 52 | * This action is run after post query but before any admin script / head actions. |
| 53 | * It is a good place to register all actions. |
| 54 | * |
| 55 | * @type action (admin_enqueue_scripts) |
| 56 | * @date 26/01/13 |
| 57 | * @since 3.6.0 |
| 58 | * |
| 59 | * @param N/A |
| 60 | * @return N/A |
| 61 | */ |
| 62 | |
| 63 | function admin_enqueue_scripts() { |
| 64 | |
| 65 | // validate screen |
| 66 | if ( acf_is_screen( 'widgets' ) || acf_is_screen( 'customize' ) ) { |
| 67 | |
| 68 | // valid |
| 69 | |
| 70 | } else { |
| 71 | |
| 72 | return; |
| 73 | |
| 74 | } |
| 75 | |
| 76 | // load acf scripts |
| 77 | acf_enqueue_scripts(); |
| 78 | |
| 79 | // actions |
| 80 | add_action( 'acf/input/admin_footer', array( $this, 'admin_footer' ), 1 ); |
| 81 | |
| 82 | } |
| 83 | |
| 84 | |
| 85 | /* |
| 86 | * acf_validate_save_post |
| 87 | * |
| 88 | * This function will loop over $_POST data and validate |
| 89 | * |
| 90 | * @type action 'acf/validate_save_post' 5 |
| 91 | * @date 7/09/2016 |
| 92 | * @since 5.4.0 |
| 93 | * |
| 94 | * @param n/a |
| 95 | * @return n/a |
| 96 | */ |
| 97 | |
| 98 | function acf_validate_save_post() { |
| 99 | |
| 100 | // bail early if not widget |
| 101 | if ( ! isset( $_POST['_acf_widget_id'] ) ) { |
| 102 | return; |
| 103 | } |
| 104 | |
| 105 | // vars |
| 106 | $id = $_POST['_acf_widget_id']; |
| 107 | $number = $_POST['_acf_widget_number']; |
| 108 | $prefix = $_POST['_acf_widget_prefix']; |
| 109 | |
| 110 | // validate |
| 111 | acf_validate_values( $_POST[ $id ][ $number ]['acf'], $prefix ); |
| 112 | |
| 113 | } |
| 114 | |
| 115 | |
| 116 | /* |
| 117 | * edit_widget |
| 118 | * |
| 119 | * This function will render the fields for a widget form |
| 120 | * |
| 121 | * @type function |
| 122 | * @date 11/06/2014 |
| 123 | * @since 5.0.0 |
| 124 | * |
| 125 | * @param $widget (object) |
| 126 | * @param $return (null) |
| 127 | * @param $instance (object) |
| 128 | * @return $post_id (int) |
| 129 | */ |
| 130 | |
| 131 | function edit_widget( $widget, $return, $instance ) { |
| 132 | |
| 133 | // vars |
| 134 | $post_id = 0; |
| 135 | $prefix = 'widget-' . $widget->id_base . '[' . $widget->number . '][acf]'; |
| 136 | |
| 137 | // get id |
| 138 | if ( $widget->number !== '__i__' ) { |
| 139 | |
| 140 | $post_id = "widget_{$widget->id}"; |
| 141 | |
| 142 | } |
| 143 | |
| 144 | // get field groups |
| 145 | $field_groups = acf_get_field_groups( |
| 146 | array( |
| 147 | 'widget' => $widget->id_base, |
| 148 | ) |
| 149 | ); |
| 150 | |
| 151 | // render |
| 152 | if ( ! empty( $field_groups ) ) { |
| 153 | |
| 154 | // render post data |
| 155 | acf_form_data( |
| 156 | array( |
| 157 | 'screen' => 'widget', |
| 158 | 'post_id' => $post_id, |
| 159 | 'widget_id' => 'widget-' . $widget->id_base, |
| 160 | 'widget_number' => $widget->number, |
| 161 | 'widget_prefix' => $prefix, |
| 162 | ) |
| 163 | ); |
| 164 | |
| 165 | // wrap |
| 166 | echo '<div class="acf-widget-fields acf-fields -clear">'; |
| 167 | |
| 168 | // loop |
| 169 | foreach ( $field_groups as $field_group ) { |
| 170 | |
| 171 | // load fields |
| 172 | $fields = acf_get_fields( $field_group ); |
| 173 | |
| 174 | // bail if not fields |
| 175 | if ( empty( $fields ) ) { |
| 176 | continue; |
| 177 | } |
| 178 | |
| 179 | // change prefix |
| 180 | acf_prefix_fields( $fields, $prefix ); |
| 181 | |
| 182 | // render |
| 183 | acf_render_fields( $fields, $post_id, 'div', $field_group['instruction_placement'] ); |
| 184 | |
| 185 | } |
| 186 | |
| 187 | // wrap |
| 188 | echo '</div>'; |
| 189 | |
| 190 | // jQuery selector looks odd, but is necessary due to WP adding an incremental number into the ID |
| 191 | // - not possible to find number via PHP parameters |
| 192 | if ( $widget->updated ) : ?> |
| 193 | <script type="text/javascript"> |
| 194 | (function($) { |
| 195 | |
| 196 | acf.doAction('append', $('[id^="widget"][id$="<?php echo $widget->id; ?>"]') ); |
| 197 | |
| 198 | })(jQuery); |
| 199 | </script> |
| 200 | <?php |
| 201 | endif; |
| 202 | |
| 203 | } |
| 204 | |
| 205 | } |
| 206 | |
| 207 | |
| 208 | /* |
| 209 | * save_widget |
| 210 | * |
| 211 | * This function will hook into the widget update filter and save ACF data |
| 212 | * |
| 213 | * @type function |
| 214 | * @date 27/05/2015 |
| 215 | * @since 5.2.3 |
| 216 | * |
| 217 | * @param $instance (array) widget settings |
| 218 | * @param $new_instance (array) widget settings |
| 219 | * @param $old_instance (array) widget settings |
| 220 | * @param $widget (object) widget info |
| 221 | * @return $instance |
| 222 | */ |
| 223 | |
| 224 | function save_widget( $instance, $new_instance, $old_instance, $widget ) { |
| 225 | |
| 226 | // validate nonce if we're not a REST API request. |
| 227 | // the $_POST object is not available to us to validate if we're in a REST API call. |
| 228 | if ( ! ( function_exists( 'wp_is_json_request' ) && wp_is_json_request() ) ) { |
| 229 | if ( ! acf_verify_nonce( 'widget' ) ) { |
| 230 | return $instance; |
| 231 | } |
| 232 | } |
| 233 | |
| 234 | // bail early if not valid (!customize + acf values + nonce). |
| 235 | if ( isset( $_POST['wp_customize'] ) || ! isset( $new_instance['acf'] ) ) { |
| 236 | return $instance; |
| 237 | } |
| 238 | |
| 239 | // save |
| 240 | acf_save_post( "widget_{$widget->id}", $new_instance['acf'] ); |
| 241 | |
| 242 | // return |
| 243 | return $instance; |
| 244 | |
| 245 | } |
| 246 | |
| 247 | |
| 248 | /* |
| 249 | * admin_footer |
| 250 | * |
| 251 | * This function will add some custom HTML to the footer of the edit page |
| 252 | * |
| 253 | * @type function |
| 254 | * @date 11/06/2014 |
| 255 | * @since 5.0.0 |
| 256 | * |
| 257 | * @param n/a |
| 258 | * @return n/a |
| 259 | */ |
| 260 | |
| 261 | function admin_footer() { |
| 262 | ?> |
| 263 | <script type="text/javascript"> |
| 264 | (function($) { |
| 265 | |
| 266 | // vars |
| 267 | acf.set('post_id', 'widgets'); |
| 268 | |
| 269 | // Only initialize visible fields. |
| 270 | acf.addFilter('find_fields', function( $fields ){ |
| 271 | |
| 272 | // not templates |
| 273 | $fields = $fields.not('#available-widgets .acf-field'); |
| 274 | |
| 275 | // not widget dragging in |
| 276 | $fields = $fields.not('.widget.ui-draggable-dragging .acf-field'); |
| 277 | |
| 278 | // return |
| 279 | return $fields; |
| 280 | }); |
| 281 | |
| 282 | // on publish |
| 283 | $('#widgets-right').on('click', '.widget-control-save', function( e ){ |
| 284 | |
| 285 | // vars |
| 286 | var $button = $(this); |
| 287 | var $form = $button.closest('form'); |
| 288 | |
| 289 | // validate |
| 290 | var valid = acf.validateForm({ |
| 291 | form: $form, |
| 292 | event: e, |
| 293 | reset: true |
| 294 | }); |
| 295 | |
| 296 | // if not valid, stop event and allow validation to continue |
| 297 | if( !valid ) { |
| 298 | e.preventDefault(); |
| 299 | e.stopImmediatePropagation(); |
| 300 | } |
| 301 | }); |
| 302 | |
| 303 | // show |
| 304 | $('#widgets-right').on('click', '.widget-top', function(){ |
| 305 | var $widget = $(this).parent(); |
| 306 | if( $widget.hasClass('open') ) { |
| 307 | acf.doAction('hide', $widget); |
| 308 | } else { |
| 309 | acf.doAction('show', $widget); |
| 310 | } |
| 311 | }); |
| 312 | |
| 313 | $(document).on('widget-added', function( e, $widget ){ |
| 314 | |
| 315 | // - use delay to avoid rendering issues with customizer (ensures div is visible) |
| 316 | setTimeout(function(){ |
| 317 | acf.doAction('append', $widget ); |
| 318 | }, 100); |
| 319 | }); |
| 320 | |
| 321 | })(jQuery); |
| 322 | </script> |
| 323 | <?php |
| 324 | |
| 325 | } |
| 326 | } |
| 327 | |
| 328 | new acf_form_widget(); |
| 329 | |
| 330 | endif; |
| 331 | |
| 332 | ?> |
| 333 |