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Diffstat (limited to 'vendor/twbs/bootstrap/js/src/offcanvas.js')
| -rw-r--r-- | vendor/twbs/bootstrap/js/src/offcanvas.js | 274 |
1 files changed, 274 insertions, 0 deletions
diff --git a/vendor/twbs/bootstrap/js/src/offcanvas.js b/vendor/twbs/bootstrap/js/src/offcanvas.js new file mode 100644 index 000000000..88eb8c997 --- /dev/null +++ b/vendor/twbs/bootstrap/js/src/offcanvas.js @@ -0,0 +1,274 @@ +/** + * -------------------------------------------------------------------------- + * Bootstrap (v5.0.2): offcanvas.js + * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE) + * -------------------------------------------------------------------------- + */ + +import { + defineJQueryPlugin, + getElementFromSelector, + isDisabled, + isVisible, + typeCheckConfig +} from './util/index' +import ScrollBarHelper from './util/scrollbar' +import EventHandler from './dom/event-handler' +import BaseComponent from './base-component' +import SelectorEngine from './dom/selector-engine' +import Manipulator from './dom/manipulator' +import Backdrop from './util/backdrop' + +/** + * ------------------------------------------------------------------------ + * Constants + * ------------------------------------------------------------------------ + */ + +const NAME = 'offcanvas' +const DATA_KEY = 'bs.offcanvas' +const EVENT_KEY = `.${DATA_KEY}` +const DATA_API_KEY = '.data-api' +const EVENT_LOAD_DATA_API = `load${EVENT_KEY}${DATA_API_KEY}` +const ESCAPE_KEY = 'Escape' + +const Default = { + backdrop: true, + keyboard: true, + scroll: false +} + +const DefaultType = { + backdrop: 'boolean', + keyboard: 'boolean', + scroll: 'boolean' +} + +const CLASS_NAME_SHOW = 'show' +const OPEN_SELECTOR = '.offcanvas.show' + +const EVENT_SHOW = `show${EVENT_KEY}` +const EVENT_SHOWN = `shown${EVENT_KEY}` +const EVENT_HIDE = `hide${EVENT_KEY}` +const EVENT_HIDDEN = `hidden${EVENT_KEY}` +const EVENT_FOCUSIN = `focusin${EVENT_KEY}` +const EVENT_CLICK_DATA_API = `click${EVENT_KEY}${DATA_API_KEY}` +const EVENT_CLICK_DISMISS = `click.dismiss${EVENT_KEY}` +const EVENT_KEYDOWN_DISMISS = `keydown.dismiss${EVENT_KEY}` + +const SELECTOR_DATA_DISMISS = '[data-bs-dismiss="offcanvas"]' +const SELECTOR_DATA_TOGGLE = '[data-bs-toggle="offcanvas"]' + +/** + * ------------------------------------------------------------------------ + * Class Definition + * ------------------------------------------------------------------------ + */ + +class Offcanvas extends BaseComponent { + constructor(element, config) { + super(element) + + this._config = this._getConfig(config) + this._isShown = false + this._backdrop = this._initializeBackDrop() + this._addEventListeners() + } + + // Getters + + static get NAME() { + return NAME + } + + static get Default() { + return Default + } + + // Public + + toggle(relatedTarget) { + return this._isShown ? this.hide() : this.show(relatedTarget) + } + + show(relatedTarget) { + if (this._isShown) { + return + } + + const showEvent = EventHandler.trigger(this._element, EVENT_SHOW, { relatedTarget }) + + if (showEvent.defaultPrevented) { + return + } + + this._isShown = true + this._element.style.visibility = 'visible' + + this._backdrop.show() + + if (!this._config.scroll) { + new ScrollBarHelper().hide() + this._enforceFocusOnElement(this._element) + } + + this._element.removeAttribute('aria-hidden') + this._element.setAttribute('aria-modal', true) + this._element.setAttribute('role', 'dialog') + this._element.classList.add(CLASS_NAME_SHOW) + + const completeCallBack = () => { + EventHandler.trigger(this._element, EVENT_SHOWN, { relatedTarget }) + } + + this._queueCallback(completeCallBack, this._element, true) + } + + hide() { + if (!this._isShown) { + return + } + + const hideEvent = EventHandler.trigger(this._element, EVENT_HIDE) + + if (hideEvent.defaultPrevented) { + return + } + + EventHandler.off(document, EVENT_FOCUSIN) + this._element.blur() + this._isShown = false + this._element.classList.remove(CLASS_NAME_SHOW) + this._backdrop.hide() + + const completeCallback = () => { + this._element.setAttribute('aria-hidden', true) + this._element.removeAttribute('aria-modal') + this._element.removeAttribute('role') + this._element.style.visibility = 'hidden' + + if (!this._config.scroll) { + new ScrollBarHelper().reset() + } + + EventHandler.trigger(this._element, EVENT_HIDDEN) + } + + this._queueCallback(completeCallback, this._element, true) + } + + dispose() { + this._backdrop.dispose() + super.dispose() + EventHandler.off(document, EVENT_FOCUSIN) + } + + // Private + + _getConfig(config) { + config = { + ...Default, + ...Manipulator.getDataAttributes(this._element), + ...(typeof config === 'object' ? config : {}) + } + typeCheckConfig(NAME, config, DefaultType) + return config + } + + _initializeBackDrop() { + return new Backdrop({ + isVisible: this._config.backdrop, + isAnimated: true, + rootElement: this._element.parentNode, + clickCallback: () => this.hide() + }) + } + + _enforceFocusOnElement(element) { + EventHandler.off(document, EVENT_FOCUSIN) // guard against infinite focus loop + EventHandler.on(document, EVENT_FOCUSIN, event => { + if (document !== event.target && + element !== event.target && + !element.contains(event.target)) { + element.focus() + } + }) + element.focus() + } + + _addEventListeners() { + EventHandler.on(this._element, EVENT_CLICK_DISMISS, SELECTOR_DATA_DISMISS, () => this.hide()) + + EventHandler.on(this._element, EVENT_KEYDOWN_DISMISS, event => { + if (this._config.keyboard && event.key === ESCAPE_KEY) { + this.hide() + } + }) + } + + // Static + + static jQueryInterface(config) { + return this.each(function () { + const data = Offcanvas.getOrCreateInstance(this, config) + + if (typeof config !== 'string') { + return + } + + if (data[config] === undefined || config.startsWith('_') || config === 'constructor') { + throw new TypeError(`No method named "${config}"`) + } + + data[config](this) + }) + } +} + +/** + * ------------------------------------------------------------------------ + * Data Api implementation + * ------------------------------------------------------------------------ + */ + +EventHandler.on(document, EVENT_CLICK_DATA_API, SELECTOR_DATA_TOGGLE, function (event) { + const target = getElementFromSelector(this) + + if (['A', 'AREA'].includes(this.tagName)) { + event.preventDefault() + } + + if (isDisabled(this)) { + return + } + + EventHandler.one(target, EVENT_HIDDEN, () => { + // focus on trigger when it is closed + if (isVisible(this)) { + this.focus() + } + }) + + // avoid conflict when clicking a toggler of an offcanvas, while another is open + const allReadyOpen = SelectorEngine.findOne(OPEN_SELECTOR) + if (allReadyOpen && allReadyOpen !== target) { + Offcanvas.getInstance(allReadyOpen).hide() + } + + const data = Offcanvas.getOrCreateInstance(target) + data.toggle(this) +}) + +EventHandler.on(window, EVENT_LOAD_DATA_API, () => + SelectorEngine.find(OPEN_SELECTOR).forEach(el => Offcanvas.getOrCreateInstance(el).show()) +) + +/** + * ------------------------------------------------------------------------ + * jQuery + * ------------------------------------------------------------------------ + */ + +defineJQueryPlugin(Offcanvas) + +export default Offcanvas |