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acf.js
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_acf-field-relationship.js
457 lines
| 1 | ( function ( $, undefined ) { |
| 2 | var Field = acf.Field.extend( { |
| 3 | type: 'relationship', |
| 4 | |
| 5 | events: { |
| 6 | 'keypress [data-filter]': 'onKeypressFilter', |
| 7 | 'change [data-filter]': 'onChangeFilter', |
| 8 | 'keyup [data-filter]': 'onChangeFilter', |
| 9 | 'click .choices-list .acf-rel-item': 'onClickAdd', |
| 10 | 'keypress .choices-list .acf-rel-item': 'onKeypressFilter', |
| 11 | 'keypress .values-list .acf-rel-item': 'onKeypressFilter', |
| 12 | 'click [data-name="remove_item"]': 'onClickRemove', |
| 13 | 'touchstart .values-list .acf-rel-item': 'onTouchStartValues', |
| 14 | }, |
| 15 | |
| 16 | $control: function () { |
| 17 | return this.$( '.acf-relationship' ); |
| 18 | }, |
| 19 | |
| 20 | $list: function ( list ) { |
| 21 | return this.$( '.' + list + '-list' ); |
| 22 | }, |
| 23 | |
| 24 | $listItems: function ( list ) { |
| 25 | return this.$list( list ).find( '.acf-rel-item' ); |
| 26 | }, |
| 27 | |
| 28 | $listItem: function ( list, id ) { |
| 29 | return this.$list( list ) |
| 30 | .find( '.acf-rel-item' ) |
| 31 | .filter( function () { |
| 32 | return String( $( this ).data( 'id' ) ) === String( id ); |
| 33 | } ); |
| 34 | }, |
| 35 | |
| 36 | getValue: function () { |
| 37 | var val = []; |
| 38 | this.$listItems( 'values' ).each( function () { |
| 39 | val.push( $( this ).data( 'id' ) ); |
| 40 | } ); |
| 41 | return val.length ? val : false; |
| 42 | }, |
| 43 | |
| 44 | setValue: function ( value ) { |
| 45 | if ( ! Array.isArray( value ) ) { |
| 46 | value = value ? [ value ] : []; |
| 47 | } |
| 48 | |
| 49 | this.$list( 'values' ).html( '' ); |
| 50 | this.$listItems( 'choices' ).removeClass( 'disabled' ); |
| 51 | |
| 52 | value.forEach( ( id ) => { |
| 53 | const $choice = this.$listItem( 'choices', id ); |
| 54 | const text = $choice.length |
| 55 | ? $choice.html() |
| 56 | : acf.strEscape( String( id ) ); |
| 57 | $choice.addClass( 'disabled' ); |
| 58 | |
| 59 | const valueHtml = this.newValue( { |
| 60 | id, |
| 61 | text, |
| 62 | } ); |
| 63 | this.$list( 'values' ).append( valueHtml ); |
| 64 | } ); |
| 65 | |
| 66 | this.$input().trigger( 'change' ); |
| 67 | }, |
| 68 | |
| 69 | newChoice: function ( props ) { |
| 70 | return [ |
| 71 | '<li>', |
| 72 | '<span tabindex="0" data-id="' + |
| 73 | acf.strEscape( String( props.id ) ) + |
| 74 | '" class="acf-rel-item">' + |
| 75 | props.text + |
| 76 | '</span>', |
| 77 | '</li>', |
| 78 | ].join( '' ); |
| 79 | }, |
| 80 | |
| 81 | newValue: function ( props ) { |
| 82 | const id = acf.strEscape( String( props.id ) ); |
| 83 | return [ |
| 84 | '<li>', |
| 85 | '<input type="hidden" name="' + |
| 86 | this.getInputName() + |
| 87 | '[]" value="' + |
| 88 | id + |
| 89 | '" />', |
| 90 | '<span tabindex="0" data-id="' + |
| 91 | id + |
| 92 | '" class="acf-rel-item acf-rel-item-remove">' + |
| 93 | props.text, |
| 94 | '<a href="#" class="acf-icon -minus small dark" data-name="remove_item"></a>', |
| 95 | '</span>', |
| 96 | '</li>', |
| 97 | ].join( '' ); |
| 98 | }, |
| 99 | |
| 100 | initialize: function () { |
| 101 | // Delay initialization until "interacted with" or "in view". |
| 102 | var delayed = this.proxy( |
| 103 | acf.once( function () { |
| 104 | // Add sortable. |
| 105 | this.$list( 'values' ).sortable( { |
| 106 | items: 'li', |
| 107 | zIndex: 9999, |
| 108 | forceHelperSize: true, |
| 109 | forcePlaceholderSize: true, |
| 110 | scroll: true, |
| 111 | update: this.proxy( function () { |
| 112 | this.$input().trigger( 'change' ); |
| 113 | } ), |
| 114 | } ); |
| 115 | |
| 116 | // Avoid browser remembering old scroll position and add event. |
| 117 | this.$list( 'choices' ) |
| 118 | .scrollTop( 0 ) |
| 119 | .on( 'scroll', this.proxy( this.onScrollChoices ) ); |
| 120 | |
| 121 | // Fetch choices. |
| 122 | this.fetch(); |
| 123 | } ) |
| 124 | ); |
| 125 | |
| 126 | // Bind "interacted with". |
| 127 | this.$el.one( 'mouseover', delayed ); |
| 128 | this.$el.one( 'focus', 'input', delayed ); |
| 129 | |
| 130 | // Bind "in view". |
| 131 | acf.onceInView( this.$el, delayed ); |
| 132 | }, |
| 133 | |
| 134 | onScrollChoices: function ( e ) { |
| 135 | // bail early if no more results |
| 136 | if ( this.get( 'loading' ) || ! this.get( 'more' ) ) { |
| 137 | return; |
| 138 | } |
| 139 | |
| 140 | // Scrolled to bottom |
| 141 | var $list = this.$list( 'choices' ); |
| 142 | var scrollTop = Math.ceil( $list.scrollTop() ); |
| 143 | var scrollHeight = Math.ceil( $list[ 0 ].scrollHeight ); |
| 144 | var innerHeight = Math.ceil( $list.innerHeight() ); |
| 145 | var paged = this.get( 'paged' ) || 1; |
| 146 | if ( scrollTop + innerHeight >= scrollHeight ) { |
| 147 | // update paged |
| 148 | this.set( 'paged', paged + 1 ); |
| 149 | |
| 150 | // fetch |
| 151 | this.fetch(); |
| 152 | } |
| 153 | }, |
| 154 | |
| 155 | onKeypressFilter: function ( e, $el ) { |
| 156 | // Receive enter key when selecting relationship items. |
| 157 | if ( $el.hasClass( 'acf-rel-item-add' ) && e.which == 13 ) { |
| 158 | this.onClickAdd( e, $el ); |
| 159 | } |
| 160 | // Receive enter key when removing relationship items. |
| 161 | if ( $el.hasClass( 'acf-rel-item-remove' ) && e.which == 13 ) { |
| 162 | this.onClickRemove( e, $el ); |
| 163 | } |
| 164 | // don't submit form |
| 165 | if ( e.which == 13 ) { |
| 166 | e.preventDefault(); |
| 167 | } |
| 168 | }, |
| 169 | |
| 170 | onChangeFilter: function ( e, $el ) { |
| 171 | // vars |
| 172 | var val = $el.val(); |
| 173 | var filter = $el.data( 'filter' ); |
| 174 | |
| 175 | // Bail early if filter has not changed |
| 176 | if ( this.get( filter ) === val ) { |
| 177 | return; |
| 178 | } |
| 179 | |
| 180 | // update attr |
| 181 | this.set( filter, val ); |
| 182 | |
| 183 | if ( filter === 's' ) { |
| 184 | // If val is numeric, limit results to include. |
| 185 | if ( parseInt( val ) ) { |
| 186 | this.set( 'include', val ); |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | // reset paged |
| 191 | this.set( 'paged', 1 ); |
| 192 | |
| 193 | // fetch |
| 194 | if ( $el.is( 'select' ) ) { |
| 195 | this.fetch(); |
| 196 | |
| 197 | // search must go through timeout |
| 198 | } else { |
| 199 | this.maybeFetch(); |
| 200 | } |
| 201 | }, |
| 202 | |
| 203 | onClickAdd: function ( e, $el ) { |
| 204 | // vars |
| 205 | var val = this.val(); |
| 206 | var max = parseInt( this.get( 'max' ) ); |
| 207 | |
| 208 | // can be added? |
| 209 | if ( $el.hasClass( 'disabled' ) ) { |
| 210 | return false; |
| 211 | } |
| 212 | |
| 213 | // validate |
| 214 | if ( max > 0 && val && val.length >= max ) { |
| 215 | // add notice |
| 216 | this.showNotice( { |
| 217 | text: acf |
| 218 | .__( 'Maximum values reached ( {max} values )' ) |
| 219 | .replace( '{max}', max ), |
| 220 | type: 'warning', |
| 221 | } ); |
| 222 | return false; |
| 223 | } |
| 224 | |
| 225 | // disable |
| 226 | $el.addClass( 'disabled' ); |
| 227 | |
| 228 | // add |
| 229 | var html = this.newValue( { |
| 230 | id: $el.data( 'id' ), |
| 231 | text: $el.html(), |
| 232 | } ); |
| 233 | this.$list( 'values' ).append( html ); |
| 234 | |
| 235 | // trigger change |
| 236 | this.$input().trigger( 'change' ); |
| 237 | }, |
| 238 | |
| 239 | onClickRemove: function ( e, $el ) { |
| 240 | // Prevent default here because generic handler wont be triggered. |
| 241 | e.preventDefault(); |
| 242 | |
| 243 | let $span; |
| 244 | // Behavior if triggered from tabbed event. |
| 245 | if ( $el.hasClass( 'acf-rel-item-remove' ) ) { |
| 246 | $span = $el; |
| 247 | } else { |
| 248 | // Behavior if triggered through click event. |
| 249 | $span = $el.parent(); |
| 250 | } |
| 251 | |
| 252 | // vars |
| 253 | const $li = $span.parent(); |
| 254 | const id = $span.data( 'id' ); |
| 255 | |
| 256 | // remove value |
| 257 | $li.remove(); |
| 258 | |
| 259 | // show choice |
| 260 | this.$listItem( 'choices', id ).removeClass( 'disabled' ); |
| 261 | |
| 262 | // trigger change |
| 263 | this.$input().trigger( 'change' ); |
| 264 | }, |
| 265 | |
| 266 | onTouchStartValues: function ( e, $el ) { |
| 267 | $( this.$listItems( 'values' ) ).removeClass( |
| 268 | 'relationship-hover' |
| 269 | ); |
| 270 | $el.addClass( 'relationship-hover' ); |
| 271 | }, |
| 272 | |
| 273 | maybeFetch: function () { |
| 274 | // vars |
| 275 | var timeout = this.get( 'timeout' ); |
| 276 | |
| 277 | // abort timeout |
| 278 | if ( timeout ) { |
| 279 | clearTimeout( timeout ); |
| 280 | } |
| 281 | |
| 282 | // fetch |
| 283 | timeout = this.setTimeout( this.fetch, 300 ); |
| 284 | this.set( 'timeout', timeout ); |
| 285 | }, |
| 286 | |
| 287 | getAjaxData: function () { |
| 288 | // load data based on element attributes |
| 289 | var ajaxData = this.$control().data(); |
| 290 | for ( var name in ajaxData ) { |
| 291 | ajaxData[ name ] = this.get( name ); |
| 292 | } |
| 293 | |
| 294 | // extra |
| 295 | ajaxData.action = 'acf/fields/relationship/query'; |
| 296 | ajaxData.field_key = this.get( 'key' ); |
| 297 | ajaxData.nonce = this.get( 'nonce' ); |
| 298 | |
| 299 | // Filter. |
| 300 | ajaxData = acf.applyFilters( |
| 301 | 'relationship_ajax_data', |
| 302 | ajaxData, |
| 303 | this |
| 304 | ); |
| 305 | |
| 306 | // return |
| 307 | return ajaxData; |
| 308 | }, |
| 309 | |
| 310 | fetch: function () { |
| 311 | // abort XHR if this field is already loading AJAX data |
| 312 | var xhr = this.get( 'xhr' ); |
| 313 | if ( xhr ) { |
| 314 | xhr.abort(); |
| 315 | } |
| 316 | |
| 317 | // add to this.o |
| 318 | var ajaxData = this.getAjaxData(); |
| 319 | |
| 320 | // clear html if is new query |
| 321 | var $choiceslist = this.$list( 'choices' ); |
| 322 | if ( ajaxData.paged == 1 ) { |
| 323 | $choiceslist.html( '' ); |
| 324 | } |
| 325 | |
| 326 | // loading |
| 327 | var $loading = $( |
| 328 | '<li><i class="acf-loading"></i> ' + |
| 329 | acf.__( 'Loading' ) + |
| 330 | '</li>' |
| 331 | ); |
| 332 | $choiceslist.append( $loading ); |
| 333 | this.set( 'loading', true ); |
| 334 | |
| 335 | // callback |
| 336 | var onComplete = function () { |
| 337 | this.set( 'loading', false ); |
| 338 | $loading.remove(); |
| 339 | }; |
| 340 | |
| 341 | var onSuccess = function ( json ) { |
| 342 | // no results |
| 343 | if ( ! json || ! json.results || ! json.results.length ) { |
| 344 | // prevent pagination |
| 345 | this.set( 'more', false ); |
| 346 | |
| 347 | // add message |
| 348 | if ( this.get( 'paged' ) == 1 ) { |
| 349 | this.$list( 'choices' ).append( |
| 350 | '<li>' + acf.__( 'No matches found' ) + '</li>' |
| 351 | ); |
| 352 | } |
| 353 | |
| 354 | // return |
| 355 | return; |
| 356 | } |
| 357 | |
| 358 | // set more (allows pagination scroll) |
| 359 | this.set( 'more', json.more ); |
| 360 | |
| 361 | // get new results |
| 362 | var html = this.walkChoices( json.results ); |
| 363 | var $html = $( html ); |
| 364 | |
| 365 | // apply .disabled to left li's |
| 366 | var val = this.val(); |
| 367 | if ( val && val.length ) { |
| 368 | val.map( function ( id ) { |
| 369 | $html |
| 370 | .find( '.acf-rel-item[data-id="' + id + '"]' ) |
| 371 | .addClass( 'disabled' ); |
| 372 | } ); |
| 373 | } |
| 374 | |
| 375 | // append |
| 376 | $choiceslist.append( $html ); |
| 377 | |
| 378 | // merge together groups |
| 379 | var $prevLabel = false; |
| 380 | var $prevList = false; |
| 381 | |
| 382 | $choiceslist.find( '.acf-rel-label' ).each( function () { |
| 383 | var $label = $( this ); |
| 384 | var $list = $label.siblings( 'ul' ); |
| 385 | |
| 386 | if ( $prevLabel && $prevLabel.text() == $label.text() ) { |
| 387 | $prevList.append( $list.children() ); |
| 388 | $( this ).parent().remove(); |
| 389 | return; |
| 390 | } |
| 391 | |
| 392 | // update vars |
| 393 | $prevLabel = $label; |
| 394 | $prevList = $list; |
| 395 | } ); |
| 396 | }; |
| 397 | |
| 398 | // get results |
| 399 | var xhr = $.ajax( { |
| 400 | url: acf.get( 'ajaxurl' ), |
| 401 | dataType: 'json', |
| 402 | type: 'post', |
| 403 | data: acf.prepareForAjax( ajaxData ), |
| 404 | context: this, |
| 405 | success: onSuccess, |
| 406 | complete: onComplete, |
| 407 | } ); |
| 408 | |
| 409 | // set |
| 410 | this.set( 'xhr', xhr ); |
| 411 | }, |
| 412 | |
| 413 | walkChoices: function ( data ) { |
| 414 | // walker |
| 415 | var walk = function ( data ) { |
| 416 | // vars |
| 417 | var html = ''; |
| 418 | |
| 419 | // is array |
| 420 | if ( $.isArray( data ) ) { |
| 421 | data.map( function ( item ) { |
| 422 | html += walk( item ); |
| 423 | } ); |
| 424 | |
| 425 | // is item |
| 426 | } else if ( $.isPlainObject( data ) ) { |
| 427 | // group |
| 428 | if ( data.children !== undefined ) { |
| 429 | html += |
| 430 | '<li><span class="acf-rel-label">' + |
| 431 | acf.escHtml( data.text ) + |
| 432 | '</span><ul class="acf-bl">'; |
| 433 | html += walk( data.children ); |
| 434 | html += '</ul></li>'; |
| 435 | |
| 436 | // single |
| 437 | } else { |
| 438 | html += |
| 439 | '<li><span tabindex="0" class="acf-rel-item acf-rel-item-add" data-id="' + |
| 440 | acf.escAttr( data.id ) + |
| 441 | '">' + |
| 442 | acf.escHtml( data.text ) + |
| 443 | '</span></li>'; |
| 444 | } |
| 445 | } |
| 446 | |
| 447 | // return |
| 448 | return html; |
| 449 | }; |
| 450 | |
| 451 | return walk( data ); |
| 452 | }, |
| 453 | } ); |
| 454 | |
| 455 | acf.registerFieldType( Field ); |
| 456 | } )( jQuery ); |
| 457 |