| 1 |
/** |
| 2 |
* PostSelect - Accessible searchable dropdown for post selection |
| 3 |
* |
| 4 |
* Enhances native <select> elements with AJAX-powered search and pagination. |
| 5 |
* Fully keyboard accessible and WCAG 2.2 AA compliant. |
| 6 |
* |
| 7 |
* @package Contact Forms |
| 8 |
* @since 2.0.0-beta.29 |
| 9 |
*/ |
| 10 |
|
| 11 |
(function() { |
| 12 |
'use strict'; |
| 13 |
|
| 14 |
/** |
| 15 |
* PostSelect class - manages a single post-select dropdown |
| 16 |
*/ |
| 17 |
class PostSelect { |
| 18 |
constructor(wrapper) { |
| 19 |
this.wrapper = wrapper; |
| 20 |
this.select = wrapper.querySelector('select'); |
| 21 |
this.config = wrapper.querySelector('.pfbc-post-select-config'); |
| 22 |
|
| 23 |
if (!this.select || !this.config) { |
| 24 |
return; |
| 25 |
} |
| 26 |
|
| 27 |
// Configuration from data attributes |
| 28 |
this.postType = this.config.dataset.postType || 'page'; |
| 29 |
this.ajaxUrl = this.config.dataset.ajaxUrl; |
| 30 |
this.nonce = this.config.dataset.nonce; |
| 31 |
this.extraArgs = this.config.dataset.extraArgs || ''; |
| 32 |
this.selectedValue = this.config.dataset.selected || ''; |
| 33 |
|
| 34 |
// Context |
| 35 |
this.isInlineLabelMode = !!this.wrapper.closest('.accua-form-view-inlinelabel'); |
| 36 |
this.inlineLabelText = this.getInlineLabelText(); |
| 37 |
|
| 38 |
// State |
| 39 |
this.isOpen = false; |
| 40 |
this.isLoading = false; |
| 41 |
this.currentPage = 1; |
| 42 |
this.hasMore = true; |
| 43 |
this.searchTerm = ''; |
| 44 |
this.options = []; |
| 45 |
this.highlightedIndex = -1; |
| 46 |
this.debounceTimer = null; |
| 47 |
this.requestSeq = 0; |
| 48 |
|
| 49 |
// Translations (can be overridden via wp_localize_script) |
| 50 |
this.i18n = window.accuaPostSelectI18n || { |
| 51 |
select: 'Select...', |
| 52 |
search: 'Search...', |
| 53 |
loading: 'Loading...', |
| 54 |
noResults: 'No results found', |
| 55 |
loadMore: 'Loading more...' |
| 56 |
}; |
| 57 |
|
| 58 |
// Separate text for trigger button vs dropdown option in inline-label mode |
| 59 |
// Trigger button: empty in inline-label mode (floating label shows above), "Select..." in standard mode |
| 60 |
// Dropdown option: inline label text in inline-label mode (e.g. "Favourite Post"), "Select..." in standard mode |
| 61 |
this.emptyTriggerText = this.isInlineLabelMode ? '' : this.i18n.select; |
| 62 |
this.emptyOptionText = (this.isInlineLabelMode && this.inlineLabelText) ? this.inlineLabelText : this.i18n.select; |
| 63 |
|
| 64 |
this.init(); |
| 65 |
} |
| 66 |
|
| 67 |
init() { |
| 68 |
// Mark as enhanced |
| 69 |
this.wrapper.dataset.enhanced = 'true'; |
| 70 |
|
| 71 |
// Hide native select |
| 72 |
this.select.style.display = 'none'; |
| 73 |
this.select.setAttribute('aria-hidden', 'true'); |
| 74 |
this.select.setAttribute('tabindex', '-1'); |
| 75 |
|
| 76 |
// Build custom UI |
| 77 |
this.buildUI(); |
| 78 |
|
| 79 |
// Bind events |
| 80 |
this.bindEvents(); |
| 81 |
|
| 82 |
// Watch for validation error messages inserted after hidden select |
| 83 |
this.observeErrors(); |
| 84 |
|
| 85 |
// Load initial options |
| 86 |
this.loadOptions(); |
| 87 |
} |
| 88 |
|
| 89 |
/** |
| 90 |
* Observe validation error messages and sync invalid state to trigger button |
| 91 |
* |
| 92 |
* The form validation JS inserts error messages after the hidden <select>. |
| 93 |
* CSS flexbox order handles visual positioning, so we only need to: |
| 94 |
* 1. Sync the invalid class/aria to the visible trigger button |
| 95 |
* 2. Forward blur events from trigger to select for validation |
| 96 |
*/ |
| 97 |
observeErrors() { |
| 98 |
// Watch for error elements being added |
| 99 |
const errorObserver = new MutationObserver((mutations) => { |
| 100 |
mutations.forEach((mutation) => { |
| 101 |
mutation.addedNodes.forEach((node) => { |
| 102 |
// Check if an error message was added |
| 103 |
if (node.nodeType === Node.ELEMENT_NODE && node.classList.contains('pfbc-inline-error')) { |
| 104 |
// Propagate the invalid styling to the trigger button |
| 105 |
this.trigger.classList.add('pfbc-invalid'); |
| 106 |
this.trigger.setAttribute('aria-invalid', 'true'); |
| 107 |
} |
| 108 |
}); |
| 109 |
|
| 110 |
// Check if error was removed |
| 111 |
mutation.removedNodes.forEach((node) => { |
| 112 |
if (node.nodeType === Node.ELEMENT_NODE && node.classList.contains('pfbc-inline-error')) { |
| 113 |
// Remove invalid styling from trigger |
| 114 |
this.trigger.classList.remove('pfbc-invalid'); |
| 115 |
this.trigger.removeAttribute('aria-invalid'); |
| 116 |
} |
| 117 |
}); |
| 118 |
}); |
| 119 |
}); |
| 120 |
|
| 121 |
// Observe the wrapper for added/removed error elements |
| 122 |
errorObserver.observe(this.wrapper, { |
| 123 |
childList: true, |
| 124 |
subtree: false |
| 125 |
}); |
| 126 |
|
| 127 |
// Forward blur from trigger to select so validation can fire |
| 128 |
this.trigger.addEventListener('blur', () => { |
| 129 |
// Dispatch blur event on the hidden select for validation |
| 130 |
const blurEvent = new FocusEvent('blur', { bubbles: true }); |
| 131 |
this.select.dispatchEvent(blurEvent); |
| 132 |
}); |
| 133 |
|
| 134 |
// Listen to select's change event to clear invalid state when user selects a value |
| 135 |
this.select.addEventListener('change', () => { |
| 136 |
if (this.select.value) { |
| 137 |
this.trigger.classList.remove('pfbc-invalid'); |
| 138 |
this.trigger.removeAttribute('aria-invalid'); |
| 139 |
} |
| 140 |
}); |
| 141 |
} |
| 142 |
|
| 143 |
buildUI() { |
| 144 |
// Main container |
| 145 |
this.container = document.createElement('div'); |
| 146 |
this.container.className = 'pfbc-post-select-container'; |
| 147 |
|
| 148 |
// Trigger button (shows selected value) |
| 149 |
this.trigger = document.createElement('button'); |
| 150 |
this.trigger.type = 'button'; |
| 151 |
this.trigger.className = 'pfbc-post-select-trigger'; |
| 152 |
this.trigger.setAttribute('aria-haspopup', 'listbox'); |
| 153 |
this.trigger.setAttribute('aria-expanded', 'false'); |
| 154 |
this.trigger.setAttribute('aria-label', this.inlineLabelText || this.i18n.select); |
| 155 |
|
| 156 |
// Generate unique ID for listbox |
| 157 |
this.listboxId = 'pfbc-post-select-listbox-' + Math.random().toString(36).substr(2, 9); |
| 158 |
this.trigger.setAttribute('aria-controls', this.listboxId); |
| 159 |
|
| 160 |
// Display text |
| 161 |
this.triggerText = document.createElement('span'); |
| 162 |
this.triggerText.className = 'pfbc-post-select-text'; |
| 163 |
this.triggerText.textContent = this.getSelectedText() || this.emptyTriggerText; |
| 164 |
this.trigger.appendChild(this.triggerText); |
| 165 |
|
| 166 |
// Arrow indicator |
| 167 |
const arrow = document.createElement('span'); |
| 168 |
arrow.className = 'pfbc-post-select-arrow'; |
| 169 |
arrow.setAttribute('aria-hidden', 'true'); |
| 170 |
this.trigger.appendChild(arrow); |
| 171 |
|
| 172 |
this.container.appendChild(this.trigger); |
| 173 |
|
| 174 |
// Dropdown panel |
| 175 |
this.dropdown = document.createElement('div'); |
| 176 |
this.dropdown.className = 'pfbc-post-select-dropdown'; |
| 177 |
this.dropdown.setAttribute('role', 'presentation'); |
| 178 |
this.dropdown.style.display = 'none'; |
| 179 |
|
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// Search input |
| 181 |
this.searchContainer = document.createElement('div'); |
| 182 |
this.searchContainer.className = 'pfbc-post-select-search'; |
| 183 |
|
| 184 |
this.searchInput = document.createElement('input'); |
| 185 |
this.searchInput.type = 'text'; |
| 186 |
this.searchInput.className = 'pfbc-post-select-search-input'; |
| 187 |
this.searchInput.placeholder = this.i18n.search; |
| 188 |
this.searchInput.setAttribute('aria-label', this.i18n.search); |
| 189 |
this.searchInput.setAttribute('role', 'searchbox'); |
| 190 |
this.searchInput.setAttribute('aria-controls', this.listboxId); |
| 191 |
this.searchInput.setAttribute('aria-autocomplete', 'list'); |
| 192 |
this.searchInput.setAttribute('autocomplete', 'off'); |
| 193 |
this.searchInput.setAttribute('autocorrect', 'off'); |
| 194 |
this.searchInput.setAttribute('autocapitalize', 'off'); |
| 195 |
this.searchInput.setAttribute('spellcheck', 'false'); |
| 196 |
|
| 197 |
this.searchContainer.appendChild(this.searchInput); |
| 198 |
this.dropdown.appendChild(this.searchContainer); |
| 199 |
|
| 200 |
// Options list |
| 201 |
this.listbox = document.createElement('ul'); |
| 202 |
this.listbox.className = 'pfbc-post-select-options'; |
| 203 |
this.listbox.id = this.listboxId; |
| 204 |
this.listbox.setAttribute('role', 'listbox'); |
| 205 |
this.listbox.setAttribute('aria-label', this.inlineLabelText || this.select.getAttribute('aria-label') || 'Options'); |
| 206 |
this.listbox.setAttribute('tabindex', '-1'); |
| 207 |
|
| 208 |
this.dropdown.appendChild(this.listbox); |
| 209 |
|
| 210 |
// Loading indicator |
| 211 |
this.loadingIndicator = document.createElement('div'); |
| 212 |
this.loadingIndicator.className = 'pfbc-post-select-loading'; |
| 213 |
this.loadingIndicator.textContent = this.i18n.loading; |
| 214 |
this.loadingIndicator.style.display = 'none'; |
| 215 |
this.dropdown.appendChild(this.loadingIndicator); |
| 216 |
|
| 217 |
// Status for screen readers |
| 218 |
this.liveRegion = document.createElement('div'); |
| 219 |
this.liveRegion.className = 'pfbc-post-select-live-region'; |
| 220 |
this.liveRegion.setAttribute('role', 'status'); |
| 221 |
this.liveRegion.setAttribute('aria-live', 'polite'); |
| 222 |
this.liveRegion.setAttribute('aria-atomic', 'true'); |
| 223 |
this.dropdown.appendChild(this.liveRegion); |
| 224 |
|
| 225 |
this.container.appendChild(this.dropdown); |
| 226 |
|
| 227 |
// Insert at beginning of wrapper so validation errors (inserted after select) appear after us |
| 228 |
this.wrapper.prepend(this.container); |
| 229 |
} |
| 230 |
|
| 231 |
bindEvents() { |
| 232 |
// Trigger click |
| 233 |
this.trigger.addEventListener('click', (e) => { |
| 234 |
e.preventDefault(); |
| 235 |
this.toggle(); |
| 236 |
}); |
| 237 |
|
| 238 |
// Trigger keyboard |
| 239 |
this.trigger.addEventListener('keydown', (e) => { |
| 240 |
this.handleTriggerKeydown(e); |
| 241 |
}); |
| 242 |
|
| 243 |
// Search input |
| 244 |
this.searchInput.addEventListener('input', () => { |
| 245 |
this.handleSearchInput(); |
| 246 |
}); |
| 247 |
|
| 248 |
this.searchInput.addEventListener('keydown', (e) => { |
| 249 |
this.handleSearchKeydown(e); |
| 250 |
}); |
| 251 |
|
| 252 |
// Listbox scroll for infinite loading |
| 253 |
this.listbox.addEventListener('scroll', () => { |
| 254 |
this.handleScroll(); |
| 255 |
}); |
| 256 |
|
| 257 |
// Click outside to close |
| 258 |
document.addEventListener('click', (e) => { |
| 259 |
if (!this.container.contains(e.target)) { |
| 260 |
this.close(); |
| 261 |
} |
| 262 |
}); |
| 263 |
|
| 264 |
// Escape to close |
| 265 |
document.addEventListener('keydown', (e) => { |
| 266 |
if (e.key === 'Escape' && this.isOpen) { |
| 267 |
this.close(); |
| 268 |
this.trigger.focus(); |
| 269 |
} |
| 270 |
}); |
| 271 |
} |
| 272 |
|
| 273 |
handleTriggerKeydown(e) { |
| 274 |
switch (e.key) { |
| 275 |
case 'Enter': |
| 276 |
case ' ': |
| 277 |
case 'ArrowDown': |
| 278 |
case 'ArrowUp': |
| 279 |
e.preventDefault(); |
| 280 |
this.open(); |
| 281 |
break; |
| 282 |
} |
| 283 |
} |
| 284 |
|
| 285 |
handleSearchKeydown(e) { |
| 286 |
switch (e.key) { |
| 287 |
case 'ArrowDown': |
| 288 |
e.preventDefault(); |
| 289 |
this.highlightNext(); |
| 290 |
break; |
| 291 |
case 'ArrowUp': |
| 292 |
e.preventDefault(); |
| 293 |
this.highlightPrevious(); |
| 294 |
break; |
| 295 |
case 'Enter': |
| 296 |
e.preventDefault(); |
| 297 |
if (this.highlightedIndex >= 0) { |
| 298 |
this.selectOption(this.highlightedIndex); |
| 299 |
} |
| 300 |
break; |
| 301 |
case 'Escape': |
| 302 |
e.preventDefault(); |
| 303 |
this.close(); |
| 304 |
this.trigger.focus(); |
| 305 |
break; |
| 306 |
case 'Tab': |
| 307 |
this.close(); |
| 308 |
break; |
| 309 |
} |
| 310 |
} |
| 311 |
|
| 312 |
handleSearchInput() { |
| 313 |
clearTimeout(this.debounceTimer); |
| 314 |
this.debounceTimer = setTimeout(() => { |
| 315 |
this.searchTerm = this.searchInput.value.trim(); |
| 316 |
this.currentPage = 1; |
| 317 |
this.hasMore = true; |
| 318 |
this.options = []; |
| 319 |
this.loadOptions(); |
| 320 |
}, 300); |
| 321 |
} |
| 322 |
|
| 323 |
handleScroll() { |
| 324 |
if (this.isLoading || !this.hasMore) { |
| 325 |
return; |
| 326 |
} |
| 327 |
|
| 328 |
const scrollTop = this.listbox.scrollTop; |
| 329 |
const scrollHeight = this.listbox.scrollHeight; |
| 330 |
const clientHeight = this.listbox.clientHeight; |
| 331 |
|
| 332 |
// Load more when near bottom |
| 333 |
if (scrollTop + clientHeight >= scrollHeight - 50) { |
| 334 |
this.currentPage++; |
| 335 |
this.loadOptions(true); |
| 336 |
} |
| 337 |
} |
| 338 |
|
| 339 |
async loadOptions(append = false) { |
| 340 |
// Scroll pagination must not fire twice for the same page while a |
| 341 |
// request is in flight. A fresh load (open/search) instead always runs: |
| 342 |
// it supersedes any in-flight request via the sequence token below, so |
| 343 |
// a search typed while the initial load is still loading is not dropped. |
| 344 |
if (append && this.isLoading) { |
| 345 |
return; |
| 346 |
} |
| 347 |
const requestSeq = ++this.requestSeq; |
| 348 |
|
| 349 |
this.isLoading = true; |
| 350 |
this.showLoading(append); |
| 351 |
|
| 352 |
try { |
| 353 |
const params = new URLSearchParams({ |
| 354 |
action: 'accua_forms_get_posts', |
| 355 |
_nonce: this.nonce, |
| 356 |
post_type: this.postType, |
| 357 |
search: this.searchTerm, |
| 358 |
page: this.currentPage, |
| 359 |
per_page: 50, |
| 360 |
extra_args: this.extraArgs, |
| 361 |
selected: append ? '' : this.selectedValue |
| 362 |
}); |
| 363 |
|
| 364 |
const response = await fetch(this.ajaxUrl, { |
| 365 |
method: 'POST', |
| 366 |
headers: { |
| 367 |
'Content-Type': 'application/x-www-form-urlencoded', |
| 368 |
}, |
| 369 |
body: params.toString() |
| 370 |
}); |
| 371 |
|
| 372 |
const data = await response.json(); |
| 373 |
|
| 374 |
// A newer request was started while this one was in flight - discard |
| 375 |
// this (stale) response instead of overwriting the newer results. |
| 376 |
if (requestSeq !== this.requestSeq) { |
| 377 |
return; |
| 378 |
} |
| 379 |
|
| 380 |
if (data.success && data.data) { |
| 381 |
const results = data.data.results || []; |
| 382 |
this.hasMore = data.data.more || false; |
| 383 |
|
| 384 |
if (append) { |
| 385 |
this.options = this.options.concat(results); |
| 386 |
} else { |
| 387 |
this.options = results; |
| 388 |
} |
| 389 |
|
| 390 |
this.renderOptions(append); |
| 391 |
this.announceResults(); |
| 392 |
} |
| 393 |
} catch (error) { |
| 394 |
if (requestSeq !== this.requestSeq) { |
| 395 |
return; |
| 396 |
} |
| 397 |
console.error('PostSelect: Failed to load options', error); |
| 398 |
this.announceError(); |
| 399 |
} finally { |
| 400 |
if (requestSeq === this.requestSeq) { |
| 401 |
this.isLoading = false; |
| 402 |
this.hideLoading(); |
| 403 |
} |
| 404 |
} |
| 405 |
} |
| 406 |
|
| 407 |
renderOptions(append = false) { |
| 408 |
if (!append) { |
| 409 |
this.listbox.innerHTML = ''; |
| 410 |
this.highlightedIndex = -1; |
| 411 |
} |
| 412 |
|
| 413 |
// Note: We don't add an empty "placeholder" option here. |
| 414 |
// The floating label already shows the field name, and adding an empty |
| 415 |
// selectable option caused issues. Users can close the dropdown to keep current value. |
| 416 |
|
| 417 |
const startIndex = append ? this.listbox.children.length : 0; |
| 418 |
|
| 419 |
this.options.forEach((option, index) => { |
| 420 |
const actualIndex = startIndex + index; |
| 421 |
const optionEl = this.createOptionElement(option.id, option.text, actualIndex); |
| 422 |
this.listbox.appendChild(optionEl); |
| 423 |
}); |
| 424 |
|
| 425 |
// Show "no results" if empty |
| 426 |
if (this.options.length === 0 && this.searchTerm) { |
| 427 |
const noResults = document.createElement('li'); |
| 428 |
noResults.className = 'pfbc-post-select-no-results'; |
| 429 |
noResults.textContent = this.i18n.noResults; |
| 430 |
noResults.setAttribute('role', 'presentation'); |
| 431 |
this.listbox.appendChild(noResults); |
| 432 |
} |
| 433 |
} |
| 434 |
|
| 435 |
createOptionElement(value, text, index) { |
| 436 |
const option = document.createElement('li'); |
| 437 |
option.className = 'pfbc-post-select-option'; |
| 438 |
option.setAttribute('role', 'option'); |
| 439 |
option.setAttribute('data-value', value); |
| 440 |
option.setAttribute('data-index', index); |
| 441 |
option.id = this.listboxId + '-option-' + index; |
| 442 |
|
| 443 |
// Check if selected |
| 444 |
const currentValue = this.select.value; |
| 445 |
if (value.toString() === currentValue.toString()) { |
| 446 |
option.classList.add('selected'); |
| 447 |
option.setAttribute('aria-selected', 'true'); |
| 448 |
} else { |
| 449 |
option.setAttribute('aria-selected', 'false'); |
| 450 |
} |
| 451 |
|
| 452 |
option.textContent = text; |
| 453 |
|
| 454 |
// Click to select |
| 455 |
option.addEventListener('click', () => { |
| 456 |
this.selectByValue(value, text); |
| 457 |
}); |
| 458 |
|
| 459 |
// Mouse hover to highlight |
| 460 |
option.addEventListener('mouseenter', () => { |
| 461 |
this.setHighlight(index); |
| 462 |
}); |
| 463 |
|
| 464 |
return option; |
| 465 |
} |
| 466 |
|
| 467 |
selectOption(index) { |
| 468 |
const option = this.listbox.querySelector(`[data-index="${index}"]`); |
| 469 |
if (option) { |
| 470 |
const value = option.dataset.value; |
| 471 |
const text = option.textContent; |
| 472 |
this.selectByValue(value, text); |
| 473 |
} |
| 474 |
} |
| 475 |
|
| 476 |
selectByValue(value, text) { |
| 477 |
// Ensure the option exists in native select before setting value |
| 478 |
// This is needed because options are loaded via AJAX and may not exist in native select |
| 479 |
if (value) { |
| 480 |
let option = this.select.querySelector(`option[value="${CSS.escape(value)}"]`); |
| 481 |
if (!option) { |
| 482 |
option = document.createElement('option'); |
| 483 |
option.value = value; |
| 484 |
option.textContent = text; |
| 485 |
this.select.appendChild(option); |
| 486 |
} |
| 487 |
} |
| 488 |
|
| 489 |
// Update native select value |
| 490 |
this.select.value = value; |
| 491 |
|
| 492 |
// Trigger change event for form validation and floating label update |
| 493 |
const event = new Event('change', { bubbles: true }); |
| 494 |
this.select.dispatchEvent(event); |
| 495 |
|
| 496 |
// Update display text |
| 497 |
this.triggerText.textContent = value ? text : this.emptyTriggerText; |
| 498 |
|
| 499 |
// Update selected state in options |
| 500 |
this.listbox.querySelectorAll('.pfbc-post-select-option').forEach((opt) => { |
| 501 |
if (opt.dataset.value === value.toString()) { |
| 502 |
opt.classList.add('selected'); |
| 503 |
opt.setAttribute('aria-selected', 'true'); |
| 504 |
} else { |
| 505 |
opt.classList.remove('selected'); |
| 506 |
opt.setAttribute('aria-selected', 'false'); |
| 507 |
} |
| 508 |
}); |
| 509 |
|
| 510 |
// Close dropdown |
| 511 |
this.close(); |
| 512 |
this.trigger.focus(); |
| 513 |
} |
| 514 |
|
| 515 |
highlightNext() { |
| 516 |
const options = this.listbox.querySelectorAll('.pfbc-post-select-option'); |
| 517 |
if (options.length === 0) return; |
| 518 |
|
| 519 |
let newIndex = this.highlightedIndex + 1; |
| 520 |
if (newIndex >= options.length) { |
| 521 |
newIndex = 0; |
| 522 |
} |
| 523 |
this.setHighlight(newIndex); |
| 524 |
} |
| 525 |
|
| 526 |
highlightPrevious() { |
| 527 |
const options = this.listbox.querySelectorAll('.pfbc-post-select-option'); |
| 528 |
if (options.length === 0) return; |
| 529 |
|
| 530 |
let newIndex = this.highlightedIndex - 1; |
| 531 |
if (newIndex < 0) { |
| 532 |
newIndex = options.length - 1; |
| 533 |
} |
| 534 |
this.setHighlight(newIndex); |
| 535 |
} |
| 536 |
|
| 537 |
setHighlight(index) { |
| 538 |
// Remove previous highlight |
| 539 |
const previousOption = this.listbox.querySelector('.highlighted'); |
| 540 |
if (previousOption) { |
| 541 |
previousOption.classList.remove('highlighted'); |
| 542 |
} |
| 543 |
|
| 544 |
// Set new highlight |
| 545 |
const option = this.listbox.querySelector(`[data-index="${index}"]`); |
| 546 |
if (option) { |
| 547 |
option.classList.add('highlighted'); |
| 548 |
this.highlightedIndex = index; |
| 549 |
|
| 550 |
// Update aria-activedescendant |
| 551 |
this.searchInput.setAttribute('aria-activedescendant', option.id); |
| 552 |
|
| 553 |
// Scroll into view |
| 554 |
option.scrollIntoView({ block: 'nearest' }); |
| 555 |
} |
| 556 |
} |
| 557 |
|
| 558 |
toggle() { |
| 559 |
if (this.isOpen) { |
| 560 |
this.close(); |
| 561 |
} else { |
| 562 |
this.open(); |
| 563 |
} |
| 564 |
} |
| 565 |
|
| 566 |
open() { |
| 567 |
if (this.isOpen) return; |
| 568 |
|
| 569 |
this.isOpen = true; |
| 570 |
this.dropdown.style.display = 'block'; |
| 571 |
this.trigger.setAttribute('aria-expanded', 'true'); |
| 572 |
this.container.classList.add('open'); |
| 573 |
|
| 574 |
// Focus search input |
| 575 |
this.searchInput.focus(); |
| 576 |
|
| 577 |
// Clear previous search |
| 578 |
this.searchInput.value = ''; |
| 579 |
this.searchTerm = ''; |
| 580 |
|
| 581 |
// Reload options if empty |
| 582 |
if (this.options.length === 0) { |
| 583 |
this.currentPage = 1; |
| 584 |
this.hasMore = true; |
| 585 |
this.loadOptions(); |
| 586 |
} |
| 587 |
} |
| 588 |
|
| 589 |
close() { |
| 590 |
if (!this.isOpen) return; |
| 591 |
|
| 592 |
this.isOpen = false; |
| 593 |
this.dropdown.style.display = 'none'; |
| 594 |
this.trigger.setAttribute('aria-expanded', 'false'); |
| 595 |
this.container.classList.remove('open'); |
| 596 |
this.highlightedIndex = -1; |
| 597 |
this.searchInput.removeAttribute('aria-activedescendant'); |
| 598 |
} |
| 599 |
|
| 600 |
showLoading(append) { |
| 601 |
if (append) { |
| 602 |
this.loadingIndicator.textContent = this.i18n.loadMore; |
| 603 |
} else { |
| 604 |
this.loadingIndicator.textContent = this.i18n.loading; |
| 605 |
} |
| 606 |
this.loadingIndicator.style.display = 'block'; |
| 607 |
} |
| 608 |
|
| 609 |
hideLoading() { |
| 610 |
this.loadingIndicator.style.display = 'none'; |
| 611 |
} |
| 612 |
|
| 613 |
getSelectedText() { |
| 614 |
const selectedOption = this.select.options[this.select.selectedIndex]; |
| 615 |
if (selectedOption && selectedOption.value) { |
| 616 |
return selectedOption.textContent; |
| 617 |
} |
| 618 |
return null; |
| 619 |
} |
| 620 |
|
| 621 |
getInlineLabelText() { |
| 622 |
const inlineWrapper = this.wrapper.closest('.pfbc-inline-label-wrapper'); |
| 623 |
if (inlineWrapper) { |
| 624 |
const floatingLabel = inlineWrapper.querySelector('.pfbc-floating-label'); |
| 625 |
if (floatingLabel && floatingLabel.textContent) { |
| 626 |
return floatingLabel.textContent.trim(); |
| 627 |
} |
| 628 |
} |
| 629 |
const ariaLabel = this.select.getAttribute('aria-label'); |
| 630 |
return ariaLabel ? ariaLabel.trim() : ''; |
| 631 |
} |
| 632 |
|
| 633 |
announceResults() { |
| 634 |
const count = this.options.length; |
| 635 |
let message = ''; |
| 636 |
if (count === 0 && this.searchTerm) { |
| 637 |
message = this.i18n.noResults; |
| 638 |
} else if (count === 1) { |
| 639 |
message = '1 result'; |
| 640 |
} else { |
| 641 |
message = count + ' results'; |
| 642 |
} |
| 643 |
if (this.hasMore) { |
| 644 |
message += ', scroll for more'; |
| 645 |
} |
| 646 |
this.liveRegion.textContent = message; |
| 647 |
} |
| 648 |
|
| 649 |
announceError() { |
| 650 |
this.liveRegion.textContent = 'Error loading results'; |
| 651 |
} |
| 652 |
} |
| 653 |
|
| 654 |
/** |
| 655 |
* Initialize all post-select elements |
| 656 |
*/ |
| 657 |
function initPostSelects() { |
| 658 |
document.querySelectorAll('.pfbc-post-select-wrapper[data-enhanced="false"]').forEach((wrapper) => { |
| 659 |
new PostSelect(wrapper); |
| 660 |
}); |
| 661 |
} |
| 662 |
|
| 663 |
// Initialize on DOM ready |
| 664 |
if (document.readyState === 'loading') { |
| 665 |
document.addEventListener('DOMContentLoaded', initPostSelects); |
| 666 |
} else { |
| 667 |
initPostSelects(); |
| 668 |
} |
| 669 |
|
| 670 |
// Re-initialize when new content is added (for AJAX-loaded forms) |
| 671 |
const observer = new MutationObserver((mutations) => { |
| 672 |
mutations.forEach((mutation) => { |
| 673 |
if (mutation.addedNodes.length) { |
| 674 |
initPostSelects(); |
| 675 |
} |
| 676 |
}); |
| 677 |
}); |
| 678 |
|
| 679 |
observer.observe(document.body, { |
| 680 |
childList: true, |
| 681 |
subtree: true |
| 682 |
}); |
| 683 |
|
| 684 |
// Export for manual initialization |
| 685 |
window.AccuaPostSelect = PostSelect; |
| 686 |
window.initAccuaPostSelects = initPostSelects; |
| 687 |
|
| 688 |
})(); |
| 689 |
|
