| 1 |
/** |
| 2 |
* Booking Calendar — Rightbar Tabs Controller (JS) |
| 3 |
* |
| 4 |
* Purpose: Handles the main right sidebar tabs (Library / Inspector / Settings) in the Booking Form Builder. |
| 5 |
* - Manages keyboard and mouse navigation for tabs. |
| 6 |
* - Keeps ARIA attributes in sync and shows/hides matching tabpanels. |
| 7 |
* - Supports programmatic switching via the 'wpbc_bfb:show_panel' event and emits 'wpbc_bfb:panel_shown'. |
| 8 |
* - Uses hard-wired selectors for rightbar markup; optionally uses WPBC_BFB_Sanitize for safe selectors. |
| 9 |
* |
| 10 |
* Markup contract: |
| 11 |
* - Tabs: [role="tab"][aria-controls="<panel_id>"] |
| 12 |
* - Tablist: .wpbc_bfb__rightbar_tabs[role="tablist"] |
| 13 |
* - Panels: .wpbc_bfb__palette_panel#<panel_id> (with aria-labelledby) |
| 14 |
* |
| 15 |
* @package Booking Calendar |
| 16 |
* @subpackage Admin\UI |
| 17 |
* @since 11.0.0 |
| 18 |
* @version 1.0.0 |
| 19 |
* @see File ../includes/page-form-builder/_src/bfb-rightbar-tabs.js |
| 20 |
*/ |
| 21 |
(function (w, d) { |
| 22 |
'use strict'; |
| 23 |
|
| 24 |
const Core = w.WPBC_BFB_Core || {}; |
| 25 |
const Sanit = Core.WPBC_BFB_Sanitize || null; |
| 26 |
|
| 27 |
/** |
| 28 |
* Accessible tabs controller for the right-side palettes (Library / Inspector / Settings) |
| 29 |
* of the Booking Form Builder UI. Handles: |
| 30 |
* - Mouse and keyboard navigation (delegated on the tablist container). |
| 31 |
* - Showing/hiding associated tabpanels and keeping ARIA in sync. |
| 32 |
* - Programmatic switching via the `wpbc_bfb:show_panel` CustomEvent (listened on document). |
| 33 |
* |
| 34 |
* If present, {@link WPBC_BFB_Sanitize.esc_attr_value_for_selector} is used to safely |
| 35 |
* select the tab that controls a given panel id. |
| 36 |
* |
| 37 |
* @version 2025-08-26 |
| 38 |
*/ |
| 39 |
class WPBC_BFB_Rightbar_Tabs { |
| 40 |
|
| 41 |
/** |
| 42 |
* Constructor. |
| 43 |
* |
| 44 |
* @param {Object} [opts] |
| 45 |
* @param {Object} [opts.selectors] |
| 46 |
* @param {string} [opts.selectors.panels='.wpbc_bfb__palette_panel'] CSS selector that matches tabpanels. |
| 47 |
* @param {string} [opts.selectors.tablist='.wpbc_bfb__rightbar_tabs[role="tablist"]'] CSS selector for tablist roots. |
| 48 |
*/ |
| 49 |
constructor(opts = {}) { |
| 50 |
const def = { |
| 51 |
panels : '.wpbc_bfb__palette_panel', |
| 52 |
tablist: '.wpbc_bfb__rightbar_tabs[role="tablist"]' |
| 53 |
}; |
| 54 |
this.selectors = Object.assign( {}, def, opts.selectors || {} ); |
| 55 |
this._on_keydown = this._on_keydown.bind( this ); |
| 56 |
this._on_click = this._on_click.bind( this ); |
| 57 |
this._on_show_panel_evt = this._on_show_panel_evt.bind( this ); |
| 58 |
this._tablists = []; |
| 59 |
} |
| 60 |
|
| 61 |
/** |
| 62 |
* Attach DOM listeners to each tablist container and perform initial ARIA sync. |
| 63 |
* Keyboard & mouse handlers are scoped to the tablist(s) for easier debugging. |
| 64 |
* |
| 65 |
* @returns {void} |
| 66 |
*/ |
| 67 |
init() { |
| 68 |
this._tablists = Array.from( d.querySelectorAll( this.selectors.tablist ) ); |
| 69 |
this._tablists.forEach( (list) => { |
| 70 |
list.addEventListener( 'keydown', this._on_keydown, true ); |
| 71 |
list.addEventListener( 'click', this._on_click, false ); |
| 72 |
} ); |
| 73 |
// Programmatic switching kept on document for back-compat with existing dispatches. |
| 74 |
d.addEventListener( 'wpbc_bfb:show_panel', this._on_show_panel_evt ); |
| 75 |
|
| 76 |
this.sync_initial_aria(); |
| 77 |
} |
| 78 |
|
| 79 |
/** |
| 80 |
* Remove listeners attached in {@link init}. |
| 81 |
* |
| 82 |
* @returns {void} |
| 83 |
*/ |
| 84 |
destroy() { |
| 85 |
this._tablists.forEach( (list) => { |
| 86 |
list.removeEventListener( 'keydown', this._on_keydown, true ); |
| 87 |
list.removeEventListener( 'click', this._on_click, false ); |
| 88 |
} ); |
| 89 |
this._tablists = []; |
| 90 |
d.removeEventListener( 'wpbc_bfb:show_panel', this._on_show_panel_evt ); |
| 91 |
} |
| 92 |
|
| 93 |
/** |
| 94 |
* Show a specific panel and update the selected tab state. |
| 95 |
* - Hides all panels matched by {@link selectors.panels} by setting |
| 96 |
* `hidden` and `aria-hidden="true"`. |
| 97 |
* - Reveals the target panel by removing `hidden` and setting `aria-hidden="false"`. |
| 98 |
* - If a tab element is provided (or discoverable by aria-controls), |
| 99 |
* marks that tab `aria-selected="true"` and clears others in its tablist. |
| 100 |
* |
| 101 |
* @param {string} panel_id The id attribute of the panel (tabpanel) to show. |
| 102 |
* @param {HTMLElement} [tab_el] An explicit tab element to mark selected (optional). |
| 103 |
* @returns {void} |
| 104 |
*/ |
| 105 |
show_panel(panel_id, tab_el) { |
| 106 |
const panel = d.getElementById( panel_id ); |
| 107 |
if ( ! panel ) { |
| 108 |
console.warn( '[WPBC] Panel not found:', panel_id ); |
| 109 |
return; |
| 110 |
} |
| 111 |
|
| 112 |
this._hide_all_panels(); |
| 113 |
panel.removeAttribute( 'hidden' ); |
| 114 |
panel.setAttribute( 'aria-hidden', 'false' ); |
| 115 |
|
| 116 |
const tab = tab_el || this._get_tab_for_panel( panel_id ); |
| 117 |
if ( ! tab ) { |
| 118 |
return; |
| 119 |
} |
| 120 |
|
| 121 |
const tablist = tab.closest( '[role="tablist"]' ) || d.querySelector( this.selectors.tablist ); |
| 122 |
if ( ! tablist ) { |
| 123 |
return; |
| 124 |
} |
| 125 |
|
| 126 |
tablist.querySelectorAll( '[role="tab"]' ).forEach( (t) => t.setAttribute( 'aria-selected', 'false' ) ); |
| 127 |
tab.setAttribute( 'aria-selected', 'true' ); |
| 128 |
|
| 129 |
// Fire a hook when a panel changes. |
| 130 |
d.dispatchEvent( new CustomEvent( 'wpbc_bfb:panel_shown', { detail: { panel_id, tab_el: tab } } ) ); |
| 131 |
} |
| 132 |
|
| 133 |
/** |
| 134 |
* Ensure a consistent initial ARIA state: |
| 135 |
* - If a panel is already visible, mark it and its controlling tab as active. |
| 136 |
* - Otherwise, reveal the first panel and mark its tab selected. |
| 137 |
* |
| 138 |
* @returns {void} |
| 139 |
*/ |
| 140 |
sync_initial_aria() { |
| 141 |
const visible = d.querySelector( `${this.selectors.panels}:not([hidden])` ); |
| 142 |
if ( visible ) { |
| 143 |
visible.setAttribute( 'aria-hidden', 'false' ); |
| 144 |
const labelled_by = visible.getAttribute( 'aria-labelledby' ); |
| 145 |
const tab = labelled_by ? d.getElementById( labelled_by ) : this._get_tab_for_panel( visible.id ); |
| 146 |
if ( tab ) { |
| 147 |
const tablist = tab.closest( '[role="tablist"]' ) || d.querySelector( this.selectors.tablist ); |
| 148 |
if ( tablist ) { |
| 149 |
tablist.querySelectorAll( '[role="tab"]' ).forEach( (t) => t.setAttribute( 'aria-selected', 'false' ) ); |
| 150 |
} |
| 151 |
tab.setAttribute( 'aria-selected', 'true' ); |
| 152 |
} |
| 153 |
return; |
| 154 |
} |
| 155 |
const first = d.querySelector( this.selectors.panels ); |
| 156 |
if ( first ) { |
| 157 |
first.removeAttribute( 'hidden' ); |
| 158 |
first.setAttribute( 'aria-hidden', 'false' ); |
| 159 |
const labelled_by = first.getAttribute( 'aria-labelledby' ); |
| 160 |
const tab = labelled_by ? d.getElementById( labelled_by ) : this._get_tab_for_panel( first.id ); |
| 161 |
if ( tab ) { |
| 162 |
const tablist = tab.closest( '[role="tablist"]' ) || d.querySelector( this.selectors.tablist ); |
| 163 |
if ( tablist ) tablist.querySelectorAll( '[role="tab"]' ).forEach( (t) => t.setAttribute( 'aria-selected', 'false' ) ); |
| 164 |
tab.setAttribute( 'aria-selected', 'true' ); |
| 165 |
} |
| 166 |
} |
| 167 |
} |
| 168 |
|
| 169 |
// ---- private helpers ---- |
| 170 |
|
| 171 |
/** |
| 172 |
* Get all tabpanel elements matched by {@link selectors.panels}. |
| 173 |
* |
| 174 |
* @private |
| 175 |
* @returns {HTMLElement[]} Array of panels. |
| 176 |
*/ |
| 177 |
_panels() { |
| 178 |
return Array.from( d.querySelectorAll( this.selectors.panels ) ); |
| 179 |
} |
| 180 |
|
| 181 |
/** |
| 182 |
* Hide every panel (set `hidden` and `aria-hidden="true"`). |
| 183 |
* |
| 184 |
* @private |
| 185 |
* @returns {void} |
| 186 |
*/ |
| 187 |
_hide_all_panels() { |
| 188 |
this._panels().forEach( (p) => { |
| 189 |
p.setAttribute( 'hidden', 'true' ); |
| 190 |
p.setAttribute( 'aria-hidden', 'true' ); |
| 191 |
} ); |
| 192 |
} |
| 193 |
|
| 194 |
/** |
| 195 |
* Find the tab element that controls the given panel id by matching |
| 196 |
* `[role="tab"][aria-controls="<panel_id>"]`. If the sanitize helper is available, |
| 197 |
* it is used to escape the id for a safe CSS attribute selector. |
| 198 |
* |
| 199 |
* @private |
| 200 |
* @param {string} panel_id |
| 201 |
* @returns {HTMLElement|null} The matching tab element, or null if not found. |
| 202 |
*/ |
| 203 |
_get_tab_for_panel(panel_id) { |
| 204 |
const esc = (val) => { |
| 205 |
if ( Sanit && typeof Sanit.esc_attr_value_for_selector === 'function' ) { |
| 206 |
return Sanit.esc_attr_value_for_selector( val ); |
| 207 |
} |
| 208 |
return String( val ) |
| 209 |
.replace( /\\/g, '\\\\' ) |
| 210 |
.replace( /"/g, '\\"' ) |
| 211 |
.replace( /\n/g, '\\A ' ) |
| 212 |
.replace( /\]/g, '\\]' ); |
| 213 |
}; |
| 214 |
return d.querySelector( `[role="tab"][aria-controls="${esc( panel_id )}"]` ); |
| 215 |
} |
| 216 |
|
| 217 |
/** |
| 218 |
* Keyboard interaction for tabs (delegated on tablist element): |
| 219 |
* ArrowRight/ArrowDown -> focus next tab |
| 220 |
* ArrowLeft/ArrowUp -> focus previous tab |
| 221 |
* Home/End -> focus first/last tab |
| 222 |
* Enter/Space -> activate focused tab |
| 223 |
* |
| 224 |
* @private |
| 225 |
* @param {KeyboardEvent} e |
| 226 |
* @returns {void} |
| 227 |
*/ |
| 228 |
_on_keydown(e) { |
| 229 |
const tab = e.target && e.target.closest && e.target.closest( '[role="tab"]' ); |
| 230 |
if ( !tab ) return; |
| 231 |
|
| 232 |
const list = tab.closest( '[role="tablist"]' ); |
| 233 |
if ( ! list ) { |
| 234 |
return; |
| 235 |
} |
| 236 |
const tabs = Array.from( list.querySelectorAll( '[role="tab"]' ) ); |
| 237 |
const idx = tabs.indexOf( tab ); |
| 238 |
const focus = (i) => { |
| 239 |
if ( tabs[i] ) tabs[i].focus(); |
| 240 |
}; |
| 241 |
|
| 242 |
switch ( e.key ) { |
| 243 |
case 'ArrowRight': |
| 244 |
case 'ArrowDown': |
| 245 |
e.preventDefault(); |
| 246 |
focus( (idx + 1) % tabs.length ); |
| 247 |
break; |
| 248 |
case 'ArrowLeft': |
| 249 |
case 'ArrowUp': |
| 250 |
e.preventDefault(); |
| 251 |
focus( (idx - 1 + tabs.length) % tabs.length ); |
| 252 |
break; |
| 253 |
case 'Home': |
| 254 |
e.preventDefault(); |
| 255 |
focus( 0 ); |
| 256 |
break; |
| 257 |
case 'End': |
| 258 |
e.preventDefault(); |
| 259 |
focus( tabs.length - 1 ); |
| 260 |
break; |
| 261 |
case 'Enter': |
| 262 |
case ' ': |
| 263 |
e.preventDefault(); |
| 264 |
this.show_panel( tab.getAttribute( 'aria-controls' ), tab ); |
| 265 |
break; |
| 266 |
} |
| 267 |
} |
| 268 |
|
| 269 |
/** |
| 270 |
* Mouse interaction for tabs (delegated on tablist element). |
| 271 |
* |
| 272 |
* @private |
| 273 |
* @param {MouseEvent} e |
| 274 |
* @returns {void} |
| 275 |
*/ |
| 276 |
_on_click(e) { |
| 277 |
const tab = e.target && e.target.closest && e.target.closest( '[role="tab"]' ); |
| 278 |
if ( !tab ) { |
| 279 |
return; |
| 280 |
} |
| 281 |
const panel_id = tab.getAttribute( 'aria-controls' ); |
| 282 |
if ( panel_id ) { |
| 283 |
e.preventDefault(); |
| 284 |
this.show_panel( panel_id, tab ); |
| 285 |
} |
| 286 |
} |
| 287 |
|
| 288 |
/** |
| 289 |
* Programmatic switching via CustomEvent listened on document: |
| 290 |
* detail = { panel_id: string, tab_el?: HTMLElement, tab_id?: string, tab_selector?: string } |
| 291 |
* |
| 292 |
* @private |
| 293 |
* @param {CustomEvent} e |
| 294 |
* @returns {void} |
| 295 |
*/ |
| 296 |
_on_show_panel_evt(e) { |
| 297 |
const detail = (e && e.detail) || {}; |
| 298 |
const panel_id = detail.panel_id; |
| 299 |
const tab_el = detail.tab_el |
| 300 |
|| (detail.tab_id ? d.getElementById( detail.tab_id ) : null) |
| 301 |
|| (detail.tab_selector ? d.querySelector( detail.tab_selector ) : null); |
| 302 |
|
| 303 |
if ( panel_id ) { |
| 304 |
this.show_panel( panel_id, tab_el || undefined ); |
| 305 |
} |
| 306 |
} |
| 307 |
} |
| 308 |
|
| 309 |
function esc_attr_selector_value(value) { |
| 310 |
if ( Sanit && typeof Sanit.esc_attr_value_for_selector === 'function' ) { |
| 311 |
return Sanit.esc_attr_value_for_selector( value ); |
| 312 |
} |
| 313 |
return String( value == null ? '' : value ) |
| 314 |
.replace( /\\/g, '\\\\' ) |
| 315 |
.replace( /"/g, '\\"' ) |
| 316 |
.replace( /\n/g, '\\A ' ) |
| 317 |
.replace( /\]/g, '\\]' ); |
| 318 |
} |
| 319 |
|
| 320 |
function get_url_params() { |
| 321 |
try { |
| 322 |
return new URLSearchParams( w.location.search || '' ); |
| 323 |
} catch ( _e ) { |
| 324 |
return null; |
| 325 |
} |
| 326 |
} |
| 327 |
|
| 328 |
function open_settings_group(group_key) { |
| 329 |
const panel = d.getElementById( 'wpbc_bfb__inspector_form_settings' ) || d; |
| 330 |
const group = panel.querySelector( '.wpbc_bfb__inspector__group[data-group="' + esc_attr_selector_value( group_key ) + '"]' ); |
| 331 |
if ( ! group ) { |
| 332 |
return false; |
| 333 |
} |
| 334 |
|
| 335 |
const header = group.querySelector( '.group__header' ); |
| 336 |
const fields = group.querySelector( '.group__fields' ); |
| 337 |
|
| 338 |
group.classList.add( 'is-open' ); |
| 339 |
if ( header ) { |
| 340 |
header.setAttribute( 'aria-expanded', 'true' ); |
| 341 |
} |
| 342 |
if ( fields ) { |
| 343 |
fields.removeAttribute( 'hidden' ); |
| 344 |
fields.setAttribute( 'aria-hidden', 'false' ); |
| 345 |
} |
| 346 |
|
| 347 |
return true; |
| 348 |
} |
| 349 |
|
| 350 |
function focus_settings_row(row_key) { |
| 351 |
const panel = d.getElementById( 'wpbc_bfb__inspector_form_settings' ) || d; |
| 352 |
const row = panel.querySelector( '.wpbc-setting[data-key="' + esc_attr_selector_value( row_key ) + '"]' ); |
| 353 |
if ( ! row ) { |
| 354 |
return false; |
| 355 |
} |
| 356 |
|
| 357 |
try { |
| 358 |
row.scrollIntoView( { behavior: 'smooth', block: 'center', inline: 'nearest' } ); |
| 359 |
} catch ( _e ) { |
| 360 |
row.scrollIntoView( true ); |
| 361 |
} |
| 362 |
|
| 363 |
row.classList.remove( 'wpbc_bfb__scroll-pulse', 'wpbc_bfb__highlight-pulse' ); |
| 364 |
void row.offsetWidth; |
| 365 |
row.classList.add( 'wpbc_bfb__scroll-pulse', 'wpbc_bfb__highlight-pulse' ); |
| 366 |
|
| 367 |
setTimeout( () => { |
| 368 |
row.classList.remove( 'wpbc_bfb__scroll-pulse', 'wpbc_bfb__highlight-pulse' ); |
| 369 |
}, 2200 ); |
| 370 |
|
| 371 |
const control = row.querySelector( '[data-wpbc-bfb-fs-key="' + esc_attr_selector_value( row_key ) + '"]' ) |
| 372 |
|| row.querySelector( 'select,input,textarea,button' ); |
| 373 |
|
| 374 |
if ( control && typeof control.focus === 'function' ) { |
| 375 |
setTimeout( () => { |
| 376 |
try { |
| 377 |
control.focus( { preventScroll: true } ); |
| 378 |
} catch ( _e ) { |
| 379 |
control.focus(); |
| 380 |
} |
| 381 |
}, 250 ); |
| 382 |
} |
| 383 |
|
| 384 |
return true; |
| 385 |
} |
| 386 |
|
| 387 |
let deep_link_done = false; |
| 388 |
let deep_link_ajax_listener_bound = false; |
| 389 |
|
| 390 |
function has_initial_deep_link() { |
| 391 |
const params = get_url_params(); |
| 392 |
return !! ( params && 'form_settings' === params.get( 'wpbc_bfb_panel' ) ); |
| 393 |
} |
| 394 |
|
| 395 |
function handle_initial_deep_link(tabs, attempt = 0) { |
| 396 |
if ( deep_link_done ) { |
| 397 |
return; |
| 398 |
} |
| 399 |
|
| 400 |
const params = get_url_params(); |
| 401 |
if ( ! params || 'form_settings' !== params.get( 'wpbc_bfb_panel' ) ) { |
| 402 |
return; |
| 403 |
} |
| 404 |
|
| 405 |
const panel_id = 'wpbc_bfb__inspector_form_settings'; |
| 406 |
const tab = d.getElementById( 'wpbc_tab_form' ); |
| 407 |
const panel = d.getElementById( panel_id ); |
| 408 |
if ( ! tab || ! panel ) { |
| 409 |
if ( attempt < 25 ) { |
| 410 |
setTimeout( () => handle_initial_deep_link( tabs, attempt + 1 ), 80 ); |
| 411 |
} |
| 412 |
return; |
| 413 |
} |
| 414 |
|
| 415 |
tabs.show_panel( panel_id, tab ); |
| 416 |
|
| 417 |
const group_key = params.get( 'wpbc_bfb_group' ); |
| 418 |
const row_key = params.get( 'wpbc_bfb_focus' ); |
| 419 |
const group_ok = group_key ? open_settings_group( group_key ) : true; |
| 420 |
const row_ok = row_key ? focus_settings_row( row_key ) : true; |
| 421 |
|
| 422 |
if ( ( ! group_ok || ! row_ok ) && attempt < 25 ) { |
| 423 |
setTimeout( () => handle_initial_deep_link( tabs, attempt + 1 ), 80 ); |
| 424 |
return; |
| 425 |
} |
| 426 |
|
| 427 |
deep_link_done = group_ok && row_ok; |
| 428 |
} |
| 429 |
|
| 430 |
function schedule_initial_deep_link(tabs, delay = 0) { |
| 431 |
if ( deep_link_done || ! has_initial_deep_link() ) { |
| 432 |
return; |
| 433 |
} |
| 434 |
|
| 435 |
setTimeout( () => handle_initial_deep_link( tabs ), delay ); |
| 436 |
} |
| 437 |
|
| 438 |
function bind_initial_deep_link_after_form_load(tabs, attempt = 0) { |
| 439 |
if ( ! has_initial_deep_link() ) { |
| 440 |
return; |
| 441 |
} |
| 442 |
|
| 443 |
if ( ! deep_link_ajax_listener_bound ) { |
| 444 |
deep_link_ajax_listener_bound = true; |
| 445 |
d.addEventListener( 'wpbc:bfb:form:ajax_loaded', () => { |
| 446 |
// Legacy/blank forms do not always emit STRUCTURE_LOADED; wait until add_page() and UI defaults settle. |
| 447 |
schedule_initial_deep_link( tabs, 450 ); |
| 448 |
}, { once: true } ); |
| 449 |
} |
| 450 |
|
| 451 |
if ( ! w.wpbc_bfb_api || ! w.wpbc_bfb_api.ready || typeof w.wpbc_bfb_api.ready.then !== 'function' ) { |
| 452 |
if ( attempt < 25 ) { |
| 453 |
setTimeout( () => bind_initial_deep_link_after_form_load( tabs, attempt + 1 ), 80 ); |
| 454 |
} |
| 455 |
return; |
| 456 |
} |
| 457 |
|
| 458 |
w.wpbc_bfb_api.ready.then( (builder) => { |
| 459 |
const events = ( w.WPBC_BFB_Core && w.WPBC_BFB_Core.WPBC_BFB_Events ) || {}; |
| 460 |
const event_name = events.STRUCTURE_LOADED || 'wpbc:bfb:structure:loaded'; |
| 461 |
if ( ! builder || ! builder.bus || typeof builder.bus.on !== 'function' ) { |
| 462 |
return; |
| 463 |
} |
| 464 |
|
| 465 |
const on_structure_loaded = () => { |
| 466 |
if ( builder.bus && typeof builder.bus.off === 'function' ) { |
| 467 |
builder.bus.off( event_name, on_structure_loaded ); |
| 468 |
} |
| 469 |
// Run after selection clearing/inspector defaults attached to the same load event. |
| 470 |
schedule_initial_deep_link( tabs, 0 ); |
| 471 |
}; |
| 472 |
|
| 473 |
builder.bus.on( event_name, on_structure_loaded ); |
| 474 |
} ); |
| 475 |
} |
| 476 |
|
| 477 |
// Boot once DOM is ready. |
| 478 |
const instance = new WPBC_BFB_Rightbar_Tabs(); |
| 479 |
const boot = () => { |
| 480 |
instance.init(); |
| 481 |
bind_initial_deep_link_after_form_load( instance ); |
| 482 |
}; |
| 483 |
if ( d.readyState === 'loading' ) { |
| 484 |
d.addEventListener( 'DOMContentLoaded', boot ); |
| 485 |
} else { |
| 486 |
boot(); |
| 487 |
} |
| 488 |
|
| 489 |
// (Optional) expose for debugging: |
| 490 |
// w.WPBC_BFB_Rightbar_Tabs = instance; |
| 491 |
|
| 492 |
})( window, document ); |
| 493 |
|
