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acf.js
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_acf-field-icon-picker.js
420 lines
| 1 | ( function ( $, undefined ) { |
| 2 | const Field = acf.Field.extend( { |
| 3 | type: 'icon_picker', |
| 4 | |
| 5 | wait: 'load', |
| 6 | |
| 7 | events: { |
| 8 | showField: 'scrollToSelectedDashicon', |
| 9 | 'input .acf-icon_url': 'onUrlChange', |
| 10 | 'click .acf-icon-picker-dashicon': 'onDashiconClick', |
| 11 | 'focus .acf-icon-picker-dashicon-radio': 'onDashiconRadioFocus', |
| 12 | 'blur .acf-icon-picker-dashicon-radio': 'onDashiconRadioBlur', |
| 13 | 'keydown .acf-icon-picker-dashicon-radio': 'onDashiconKeyDown', |
| 14 | 'input .acf-dashicons-search-input': 'onDashiconSearch', |
| 15 | 'keydown .acf-dashicons-search-input': 'onDashiconSearchKeyDown', |
| 16 | 'click .acf-icon-picker-media-library-button': |
| 17 | 'onMediaLibraryButtonClick', |
| 18 | 'click .acf-icon-picker-media-library-preview': |
| 19 | 'onMediaLibraryButtonClick', |
| 20 | }, |
| 21 | |
| 22 | $typeInput() { |
| 23 | return this.$( |
| 24 | 'input[type="hidden"][data-hidden-type="type"]:first' |
| 25 | ); |
| 26 | }, |
| 27 | |
| 28 | $valueInput() { |
| 29 | return this.$( |
| 30 | 'input[type="hidden"][data-hidden-type="value"]:first' |
| 31 | ); |
| 32 | }, |
| 33 | |
| 34 | $tabButton() { |
| 35 | return this.$( '.acf-tab-button' ); |
| 36 | }, |
| 37 | |
| 38 | $selectedIcon() { |
| 39 | return this.$( '.acf-icon-picker-dashicon.active' ); |
| 40 | }, |
| 41 | |
| 42 | $selectedRadio() { |
| 43 | return this.$( '.acf-icon-picker-dashicon.active input' ); |
| 44 | }, |
| 45 | |
| 46 | $dashiconsList() { |
| 47 | return this.$( '.acf-dashicons-list' ); |
| 48 | }, |
| 49 | |
| 50 | $mediaLibraryButton() { |
| 51 | return this.$( '.acf-icon-picker-media-library-button' ); |
| 52 | }, |
| 53 | |
| 54 | initialize() { |
| 55 | // Set up actions hook callbacks. |
| 56 | this.addActions(); |
| 57 | |
| 58 | // Initialize the state of the icon picker. |
| 59 | let typeAndValue = { |
| 60 | type: this.$typeInput().val(), |
| 61 | value: this.$valueInput().val() |
| 62 | }; |
| 63 | |
| 64 | // Store the type and value object. |
| 65 | this.set( 'typeAndValue', typeAndValue ); |
| 66 | |
| 67 | // Any time any acf tab is clicked, we will re-scroll to the selected dashicon. |
| 68 | $( '.acf-tab-button' ).on( 'click', () => { |
| 69 | this.initializeDashiconsTab( this.get( 'typeAndValue' ) ); |
| 70 | } ); |
| 71 | |
| 72 | // Fire the action which lets people know the state has been updated. |
| 73 | acf.doAction( |
| 74 | this.get( 'name' ) + '/type_and_value_change', |
| 75 | typeAndValue |
| 76 | ); |
| 77 | |
| 78 | this.initializeDashiconsTab( typeAndValue ); |
| 79 | this.alignMediaLibraryTabToCurrentValue( typeAndValue ); |
| 80 | }, |
| 81 | |
| 82 | addActions() { |
| 83 | // Set up an action listener for when the type and value changes. |
| 84 | acf.addAction( |
| 85 | this.get( 'name' ) + '/type_and_value_change', |
| 86 | ( newTypeAndValue ) => { |
| 87 | // Align the visual state of each tab to the current value. |
| 88 | this.alignDashiconsTabToCurrentValue( newTypeAndValue ); |
| 89 | this.alignMediaLibraryTabToCurrentValue( newTypeAndValue ); |
| 90 | this.alignUrlTabToCurrentValue( newTypeAndValue ); |
| 91 | } |
| 92 | ); |
| 93 | }, |
| 94 | |
| 95 | updateTypeAndValue( type, value ) { |
| 96 | const typeAndValue = { |
| 97 | type, |
| 98 | value, |
| 99 | }; |
| 100 | |
| 101 | // Update the values in the hidden fields, which are what will actually be saved. |
| 102 | acf.val( this.$typeInput(), type ); |
| 103 | acf.val( this.$valueInput(), value ); |
| 104 | |
| 105 | // Fire an action to let each tab set itself according to the typeAndValue state. |
| 106 | acf.doAction( |
| 107 | this.get( 'name' ) + '/type_and_value_change', |
| 108 | typeAndValue |
| 109 | ); |
| 110 | |
| 111 | // Set the state. |
| 112 | this.set( 'typeAndValue', typeAndValue ); |
| 113 | }, |
| 114 | |
| 115 | scrollToSelectedDashicon() { |
| 116 | const innerElement = this.$selectedIcon(); |
| 117 | |
| 118 | // If no icon is selected, do nothing. |
| 119 | if ( innerElement.length === 0 ) { |
| 120 | return; |
| 121 | } |
| 122 | |
| 123 | const scrollingDiv = this.$dashiconsList(); |
| 124 | scrollingDiv.scrollTop( 0 ); |
| 125 | |
| 126 | const distance = innerElement.position().top - 50; |
| 127 | |
| 128 | if ( distance === 0 ) { |
| 129 | return; |
| 130 | } |
| 131 | |
| 132 | scrollingDiv.scrollTop( distance ); |
| 133 | }, |
| 134 | |
| 135 | initializeDashiconsTab( typeAndValue ) { |
| 136 | const dashicons = this.getDashiconsList() || []; |
| 137 | this.set( 'dashicons', dashicons ); |
| 138 | this.renderDashiconList(); |
| 139 | this.initializeSelectedDashicon( typeAndValue ); |
| 140 | }, |
| 141 | |
| 142 | initializeSelectedDashicon( typeAndValue ) { |
| 143 | if ( typeAndValue.type !== 'dashicons' ) { |
| 144 | return; |
| 145 | } |
| 146 | // Select the correct dashicon. |
| 147 | this.selectDashicon( typeAndValue.value, false ).then( () => { |
| 148 | // Scroll to the selected dashicon. |
| 149 | this.scrollToSelectedDashicon(); |
| 150 | } ); |
| 151 | }, |
| 152 | |
| 153 | alignDashiconsTabToCurrentValue( typeAndValue ) { |
| 154 | if ( typeAndValue.type !== 'dashicons' ) { |
| 155 | this.unselectDashicon(); |
| 156 | } |
| 157 | }, |
| 158 | |
| 159 | renderDashiconHTML( dashicon ) { |
| 160 | const id = `${ this.get( 'name' ) }-${ dashicon.key }`; |
| 161 | return `<div class="dashicons ${ acf.strEscape( |
| 162 | dashicon.key |
| 163 | ) } acf-icon-picker-dashicon" data-icon="${ acf.strEscape( |
| 164 | dashicon.key |
| 165 | ) }"> |
| 166 | <label for="${ acf.strEscape( id ) }">${ acf.strEscape( |
| 167 | dashicon.label |
| 168 | ) }</label> |
| 169 | <input id="${ acf.strEscape( |
| 170 | id |
| 171 | ) }" type="radio" class="acf-icon-picker-dashicon-radio" name="acf-icon-picker-dashicon-radio" value="${ acf.strEscape( |
| 172 | dashicon.key |
| 173 | ) }"> |
| 174 | </div>`; |
| 175 | }, |
| 176 | |
| 177 | renderDashiconList() { |
| 178 | const dashicons = this.get( 'dashicons' ); |
| 179 | |
| 180 | this.$dashiconsList().empty(); |
| 181 | dashicons.forEach( ( dashicon ) => { |
| 182 | this.$dashiconsList().append( |
| 183 | this.renderDashiconHTML( dashicon ) |
| 184 | ); |
| 185 | } ); |
| 186 | }, |
| 187 | |
| 188 | getDashiconsList() { |
| 189 | const iconPickeri10n = acf.get( 'iconPickeri10n' ) || []; |
| 190 | |
| 191 | const dashicons = Object.entries( iconPickeri10n ).map( |
| 192 | ( [ key, value ] ) => { |
| 193 | return { |
| 194 | key, |
| 195 | label: value, |
| 196 | }; |
| 197 | } |
| 198 | ); |
| 199 | |
| 200 | return dashicons; |
| 201 | }, |
| 202 | |
| 203 | getDashiconsBySearch( searchTerm ) { |
| 204 | const lowercaseSearchTerm = searchTerm.toLowerCase(); |
| 205 | const dashicons = this.getDashiconsList(); |
| 206 | |
| 207 | const filteredDashicons = dashicons.filter( function ( icon ) { |
| 208 | const lowercaseIconLabel = icon.label.toLowerCase(); |
| 209 | return lowercaseIconLabel.indexOf( lowercaseSearchTerm ) > -1; |
| 210 | } ); |
| 211 | |
| 212 | return filteredDashicons; |
| 213 | }, |
| 214 | |
| 215 | selectDashicon( dashicon, setFocus = true ) { |
| 216 | this.set( 'selectedDashicon', dashicon ); |
| 217 | |
| 218 | // Select the new one. |
| 219 | const $newIcon = this.$dashiconsList().find( |
| 220 | '.acf-icon-picker-dashicon[data-icon="' + dashicon + '"]' |
| 221 | ); |
| 222 | $newIcon.addClass( 'active' ); |
| 223 | |
| 224 | const $input = $newIcon.find( 'input' ); |
| 225 | const thePromise = $input.prop( 'checked', true ).promise(); |
| 226 | |
| 227 | if ( setFocus ) { |
| 228 | $input.trigger( 'focus' ); |
| 229 | } |
| 230 | |
| 231 | this.updateTypeAndValue( 'dashicons', dashicon ); |
| 232 | |
| 233 | return thePromise; |
| 234 | }, |
| 235 | |
| 236 | unselectDashicon() { |
| 237 | // Remove the currently active dashicon, if any. |
| 238 | this.$dashiconsList() |
| 239 | .find( '.acf-icon-picker-dashicon' ) |
| 240 | .removeClass( 'active' ); |
| 241 | this.set( 'selectedDashicon', false ); |
| 242 | }, |
| 243 | |
| 244 | onDashiconRadioFocus( e ) { |
| 245 | const dashicon = e.target.value; |
| 246 | |
| 247 | const $newIcon = this.$dashiconsList().find( |
| 248 | '.acf-icon-picker-dashicon[data-icon="' + dashicon + '"]' |
| 249 | ); |
| 250 | $newIcon.addClass( 'focus' ); |
| 251 | |
| 252 | // If this is a different icon than previously selected, select it. |
| 253 | if ( this.get( 'selectedDashicon' ) !== dashicon ) { |
| 254 | this.unselectDashicon(); |
| 255 | this.selectDashicon( dashicon ); |
| 256 | } |
| 257 | }, |
| 258 | |
| 259 | onDashiconRadioBlur( e ) { |
| 260 | const icon = this.$( e.target ); |
| 261 | const iconParent = icon.parent(); |
| 262 | |
| 263 | iconParent.removeClass( 'focus' ); |
| 264 | }, |
| 265 | |
| 266 | onDashiconClick( e ) { |
| 267 | e.preventDefault(); |
| 268 | |
| 269 | const icon = this.$( e.target ); |
| 270 | const dashicon = icon.find( 'input' ).val(); |
| 271 | |
| 272 | const $newIcon = this.$dashiconsList().find( |
| 273 | '.acf-icon-picker-dashicon[data-icon="' + dashicon + '"]' |
| 274 | ); |
| 275 | |
| 276 | // By forcing focus on the input, we fire onDashiconRadioFocus. |
| 277 | $newIcon.find( 'input' ).prop( 'checked', true ).trigger( 'focus' ); |
| 278 | }, |
| 279 | |
| 280 | onDashiconSearch( e ) { |
| 281 | const searchTerm = e.target.value; |
| 282 | const filteredDashicons = this.getDashiconsBySearch( searchTerm ); |
| 283 | |
| 284 | if ( filteredDashicons.length > 0 || ! searchTerm ) { |
| 285 | this.set( 'dashicons', filteredDashicons ); |
| 286 | this.$( '.acf-dashicons-list-empty' ).hide(); |
| 287 | this.$( '.acf-dashicons-list ' ).show(); |
| 288 | this.renderDashiconList(); |
| 289 | |
| 290 | // Announce change of data to screen readers. |
| 291 | wp.a11y.speak( |
| 292 | acf.get( 'iconPickerA11yStrings' ) |
| 293 | .newResultsFoundForSearchTerm, |
| 294 | 'polite' |
| 295 | ); |
| 296 | } else { |
| 297 | // Truncate the search term if it's too long. |
| 298 | const visualSearchTerm = |
| 299 | searchTerm.length > 30 |
| 300 | ? searchTerm.substring( 0, 30 ) + '…' |
| 301 | : searchTerm; |
| 302 | |
| 303 | this.$( '.acf-dashicons-list ' ).hide(); |
| 304 | this.$( '.acf-dashicons-list-empty' ) |
| 305 | .find( '.acf-invalid-dashicon-search-term' ) |
| 306 | .text( visualSearchTerm ); |
| 307 | this.$( '.acf-dashicons-list-empty' ).css( 'display', 'flex' ); |
| 308 | this.$( '.acf-dashicons-list-empty' ).show(); |
| 309 | |
| 310 | // Announce change of data to screen readers. |
| 311 | wp.a11y.speak( |
| 312 | acf.get( 'iconPickerA11yStrings' ).noResultsForSearchTerm, |
| 313 | 'polite' |
| 314 | ); |
| 315 | } |
| 316 | }, |
| 317 | |
| 318 | onDashiconSearchKeyDown( e ) { |
| 319 | // Check if the pressed key is Enter (key code 13) |
| 320 | if ( e.which === 13 ) { |
| 321 | // Prevent submitting the entire form if someone presses enter after searching. |
| 322 | e.preventDefault(); |
| 323 | } |
| 324 | }, |
| 325 | |
| 326 | onDashiconKeyDown( e ) { |
| 327 | if ( e.which === 13 ) { |
| 328 | // If someone presses enter while an icon is focused, prevent the form from submitting. |
| 329 | e.preventDefault(); |
| 330 | } |
| 331 | }, |
| 332 | |
| 333 | alignMediaLibraryTabToCurrentValue( typeAndValue ) { |
| 334 | const type = typeAndValue.type; |
| 335 | const value = typeAndValue.value; |
| 336 | |
| 337 | if ( type !== 'media_library' && type !== 'dashicons' ) { |
| 338 | // Hide the preview container on the media library tab. |
| 339 | this.$( '.acf-icon-picker-media-library-preview' ).hide(); |
| 340 | } |
| 341 | |
| 342 | if ( type === 'media_library' ) { |
| 343 | const previewUrl = this.get( 'mediaLibraryPreviewUrl' ); |
| 344 | // Set the image file preview src. |
| 345 | this.$( '.acf-icon-picker-media-library-preview-img img' ).attr( |
| 346 | 'src', |
| 347 | previewUrl |
| 348 | ); |
| 349 | |
| 350 | // Hide the dashicon preview. |
| 351 | this.$( |
| 352 | '.acf-icon-picker-media-library-preview-dashicon' |
| 353 | ).hide(); |
| 354 | |
| 355 | // Show the image file preview. |
| 356 | this.$( '.acf-icon-picker-media-library-preview-img' ).show(); |
| 357 | |
| 358 | // Show the preview container (it may have been hidden if nothing was ever selected yet). |
| 359 | this.$( '.acf-icon-picker-media-library-preview' ).show(); |
| 360 | } |
| 361 | |
| 362 | if ( type === 'dashicons' ) { |
| 363 | // Set the dashicon preview class. |
| 364 | this.$( |
| 365 | '.acf-icon-picker-media-library-preview-dashicon .dashicons' |
| 366 | ).attr( 'class', 'dashicons ' + value ); |
| 367 | |
| 368 | // Hide the image file preview. |
| 369 | this.$( '.acf-icon-picker-media-library-preview-img' ).hide(); |
| 370 | |
| 371 | // Show the dashicon preview. |
| 372 | this.$( |
| 373 | '.acf-icon-picker-media-library-preview-dashicon' |
| 374 | ).show(); |
| 375 | |
| 376 | // Show the preview container (it may have been hidden if nothing was ever selected yet). |
| 377 | this.$( '.acf-icon-picker-media-library-preview' ).show(); |
| 378 | } |
| 379 | }, |
| 380 | |
| 381 | async onMediaLibraryButtonClick( e ) { |
| 382 | e.preventDefault(); |
| 383 | |
| 384 | await this.selectAndReturnAttachment().then( ( attachment ) => { |
| 385 | // When an attachment is selected, update the preview and the hidden fields. |
| 386 | this.set( 'mediaLibraryPreviewUrl', attachment.attributes.url ); |
| 387 | this.updateTypeAndValue( 'media_library', attachment.id ); |
| 388 | } ); |
| 389 | }, |
| 390 | |
| 391 | selectAndReturnAttachment() { |
| 392 | return new Promise( ( resolve ) => { |
| 393 | acf.newMediaPopup( { |
| 394 | mode: 'select', |
| 395 | type: 'image', |
| 396 | title: acf.__( 'Select Image' ), |
| 397 | field: this.get( 'key' ), |
| 398 | multiple: false, |
| 399 | library: 'all', |
| 400 | allowedTypes: 'image', |
| 401 | select: resolve, |
| 402 | } ); |
| 403 | } ); |
| 404 | }, |
| 405 | |
| 406 | alignUrlTabToCurrentValue( typeAndValue ) { |
| 407 | if ( typeAndValue.type !== 'url' ) { |
| 408 | this.$( '.acf-icon_url' ).val( '' ); |
| 409 | } |
| 410 | }, |
| 411 | |
| 412 | onUrlChange( event ) { |
| 413 | const currentValue = event.target.value; |
| 414 | this.updateTypeAndValue( 'url', currentValue ); |
| 415 | }, |
| 416 | } ); |
| 417 | |
| 418 | acf.registerFieldType( Field ); |
| 419 | } )( jQuery ); |
| 420 |