649 lines
20 KiB
JavaScript
649 lines
20 KiB
JavaScript
import '@lion/core/src/differentKeyEventNamesShimIE.js';
|
|
import './utils/typedef.js';
|
|
import { overlays } from './overlays.js';
|
|
import { containFocus } from './utils/contain-focus.js';
|
|
|
|
async function preloadPopper() {
|
|
return import('popper.js/dist/esm/popper.min.js');
|
|
}
|
|
|
|
const GLOBAL_OVERLAYS_CONTAINER_CLASS = 'global-overlays__overlay-container';
|
|
const GLOBAL_OVERLAYS_CLASS = 'global-overlays__overlay';
|
|
|
|
export class OverlayController {
|
|
/**
|
|
* @constructor
|
|
* @param {OverlayConfig} config initial config. Will be remembered as shared config
|
|
* when `.updateConfig()` is called.
|
|
*/
|
|
constructor(config = {}, manager = overlays) {
|
|
this.__fakeExtendsEventTarget();
|
|
this.manager = manager;
|
|
this.__sharedConfig = config;
|
|
this._defaultConfig = {
|
|
placementMode: null,
|
|
contentNode: config.contentNode,
|
|
invokerNode: config.invokerNode,
|
|
referenceNode: null,
|
|
elementToFocusAfterHide: config.invokerNode,
|
|
inheritsReferenceWidth: '',
|
|
hasBackdrop: false,
|
|
isBlocking: false,
|
|
preventsScroll: false,
|
|
trapsKeyboardFocus: false,
|
|
hidesOnEsc: false,
|
|
hidesOnOutsideClick: false,
|
|
hidesOnHideEventInContentNode: true,
|
|
isTooltip: false,
|
|
handlesUserInteraction: false,
|
|
handlesAccessibility: false,
|
|
popperConfig: null,
|
|
viewportConfig: {
|
|
placement: 'center',
|
|
},
|
|
};
|
|
|
|
this.manager.add(this);
|
|
|
|
this._contentNodeWrapper = document.createElement('div');
|
|
this._contentId = `overlay-content--${Math.random()
|
|
.toString(36)
|
|
.substr(2, 10)}`;
|
|
|
|
this.updateConfig(config);
|
|
|
|
this.__hasActiveTrapsKeyboardFocus = false;
|
|
this.__hasActiveBackdrop = true;
|
|
}
|
|
|
|
get invoker() {
|
|
return this.invokerNode;
|
|
}
|
|
|
|
get content() {
|
|
return this._contentNodeWrapper;
|
|
}
|
|
|
|
/**
|
|
* @desc The element ._contentNodeWrapper will be appended to.
|
|
* If viewportConfig is configured, this will be OverlayManager.globalRootNode
|
|
* If popperConfig is configured, this will be a sibling node of invokerNode
|
|
*/
|
|
get _renderTarget() {
|
|
if (this.placementMode === 'global') {
|
|
return this.manager.globalRootNode;
|
|
}
|
|
return this.__originalContentParent;
|
|
}
|
|
|
|
/**
|
|
* @desc The element our local overlay will be positioned relative to.
|
|
*/
|
|
get _referenceNode() {
|
|
return this.referenceNode || this.invokerNode;
|
|
}
|
|
|
|
set elevation(value) {
|
|
if (this._contentNodeWrapper) {
|
|
this._contentNodeWrapper.style.zIndex = value;
|
|
}
|
|
if (this.backdropNode) {
|
|
this.backdropNode.style.zIndex = value;
|
|
}
|
|
}
|
|
|
|
get elevation() {
|
|
return this._contentNodeWrapper.zIndex;
|
|
}
|
|
|
|
/**
|
|
* @desc Allows to dynamically change the overlay configuration. Needed in case the
|
|
* presentation of the overlay changes depending on screen size.
|
|
* Note that this method is the only allowed way to update a configuration of an
|
|
* OverlayController instance.
|
|
* @param {OverlayConfig} cfgToAdd
|
|
*/
|
|
updateConfig(cfgToAdd) {
|
|
// Teardown all previous configs
|
|
this._handleFeatures({ phase: 'teardown' });
|
|
|
|
if (cfgToAdd.contentNode && cfgToAdd.contentNode.isConnected) {
|
|
// We need to keep track of the original local context.
|
|
this.__originalContentParent = cfgToAdd.contentNode.parentElement;
|
|
}
|
|
this.__prevConfig = this.config || {};
|
|
|
|
this.config = {
|
|
...this._defaultConfig, // our basic ingredients
|
|
...this.__sharedConfig, // the initial configured overlayController
|
|
...cfgToAdd, // the added config
|
|
};
|
|
|
|
this.__validateConfiguration(this.config);
|
|
Object.assign(this, this.config);
|
|
this._init({ cfgToAdd });
|
|
}
|
|
|
|
// eslint-disable-next-line class-methods-use-this
|
|
__validateConfiguration(newConfig) {
|
|
if (!newConfig.placementMode) {
|
|
throw new Error('You need to provide a .placementMode ("global"|"local")');
|
|
}
|
|
if (!['global', 'local'].includes(newConfig.placementMode)) {
|
|
throw new Error(
|
|
`"${newConfig.placementMode}" is not a valid .placementMode, use ("global"|"local")`,
|
|
);
|
|
}
|
|
if (!newConfig.contentNode) {
|
|
throw new Error('You need to provide a .contentNode');
|
|
}
|
|
}
|
|
|
|
async _init({ cfgToAdd }) {
|
|
this.__initContentNodeWrapper();
|
|
this.__initConnectionTarget();
|
|
if (this.handlesAccessibility) {
|
|
this.__initAccessibility({ cfgToAdd });
|
|
}
|
|
|
|
if (this.placementMode === 'local') {
|
|
// Now, it's time to lazily load Popper if not done yet
|
|
// Do we really want to add display: inline or is this up to user?
|
|
if (!this.constructor.popperModule) {
|
|
// TODO: Instead, prefetch it or use a preloader-manager to load it during idle time
|
|
this.constructor.popperModule = preloadPopper();
|
|
}
|
|
this.__mergePopperConfigs(cfgToAdd.popperConfig || {});
|
|
}
|
|
this._handleFeatures({ phase: 'init' });
|
|
}
|
|
|
|
__initConnectionTarget() {
|
|
// Now, add our node to the right place in dom (rendeTarget)
|
|
if (this.contentNode !== this.__prevConfig.contentNode) {
|
|
this._contentNodeWrapper.appendChild(this.contentNode);
|
|
}
|
|
if (this._renderTarget && this._renderTarget !== this._contentNodeWrapper.parentNode) {
|
|
this._renderTarget.appendChild(this._contentNodeWrapper);
|
|
}
|
|
}
|
|
|
|
// FIXME: Consider that state can also be shown (rather than only initial/closed), and don't hide in that case
|
|
/**
|
|
* @desc Cleanup ._contentNodeWrapper. We do this, because creating a fresh wrapper
|
|
* can lead to problems with event listeners...
|
|
*/
|
|
__initContentNodeWrapper() {
|
|
Array.from(this._contentNodeWrapper.attributes).forEach(attrObj => {
|
|
this._contentNodeWrapper.removeAttribute(attrObj.name);
|
|
});
|
|
this._contentNodeWrapper.style.cssText = null;
|
|
this._contentNodeWrapper.style.display = 'none';
|
|
|
|
// Make sure that your shadow dom contains this outlet, when we are adding to light dom
|
|
this._contentNodeWrapper.slot = '_overlay-shadow-outlet';
|
|
|
|
if (getComputedStyle(this.contentNode).position === 'absolute') {
|
|
// Having a _contWrapperNode and a contentNode with 'position:absolute' results in
|
|
// computed height of 0...
|
|
this.contentNode.style.position = 'static';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @desc Display local overlays on top of elements with no z-index that appear later in the DOM
|
|
*/
|
|
_handleZIndex({ phase }) {
|
|
if (this.placementMode !== 'local') {
|
|
return;
|
|
}
|
|
|
|
if (phase === 'setup') {
|
|
const zIndexNumber = Number(getComputedStyle(this.contentNode).zIndex);
|
|
if (zIndexNumber < 1 || Number.isNaN(zIndexNumber)) {
|
|
this._contentNodeWrapper.style.zIndex = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
__initAccessibility() {
|
|
// TODO: add setup props in object and restore on teardown
|
|
if (!this.contentNode.id) {
|
|
this.contentNode.setAttribute('id', this._contentId);
|
|
}
|
|
if (this.isTooltip) {
|
|
// TODO: this could also be labelledby
|
|
if (this.invokerNode) {
|
|
this.invokerNode.setAttribute('aria-describedby', this._contentId);
|
|
}
|
|
this.contentNode.setAttribute('role', 'tooltip');
|
|
} else {
|
|
if (this.invokerNode) {
|
|
this.invokerNode.setAttribute('aria-expanded', this.isShown);
|
|
}
|
|
if (!this.contentNode.role) {
|
|
this.contentNode.setAttribute('role', 'dialog');
|
|
}
|
|
}
|
|
}
|
|
|
|
get isShown() {
|
|
return Boolean(this._contentNodeWrapper.style.display !== 'none');
|
|
}
|
|
|
|
/**
|
|
* @event before-show right before the overlay shows. Used for animations and switching overlays
|
|
* @event show right after the overlay is shown
|
|
* @param {HTMLElement} elementToFocusAfterHide
|
|
*/
|
|
async show(elementToFocusAfterHide = this.elementToFocusAfterHide) {
|
|
if (this.manager) {
|
|
this.manager.show(this);
|
|
}
|
|
|
|
if (this.isShown) {
|
|
return;
|
|
}
|
|
this.dispatchEvent(new Event('before-show'));
|
|
this._contentNodeWrapper.style.display = this.placementMode === 'local' ? 'inline-block' : '';
|
|
await this._handleFeatures({ phase: 'show' });
|
|
await this._handlePosition({ phase: 'show' });
|
|
this.elementToFocusAfterHide = elementToFocusAfterHide;
|
|
this.dispatchEvent(new Event('show'));
|
|
}
|
|
|
|
async _handlePosition({ phase }) {
|
|
if (this.placementMode === 'global') {
|
|
const addOrRemove = phase === 'show' ? 'add' : 'remove';
|
|
const placementClass = `${GLOBAL_OVERLAYS_CONTAINER_CLASS}--${this.viewportConfig.placement}`;
|
|
this._contentNodeWrapper.classList[addOrRemove](GLOBAL_OVERLAYS_CONTAINER_CLASS);
|
|
this._contentNodeWrapper.classList[addOrRemove](placementClass);
|
|
this.contentNode.classList[addOrRemove](GLOBAL_OVERLAYS_CLASS);
|
|
} else if (this.placementMode === 'local' && phase === 'show') {
|
|
/**
|
|
* Popper is weird about properly positioning the popper element when it is recreated so
|
|
* we just recreate the popper instance to make it behave like it should.
|
|
* Probably related to this issue: https://github.com/FezVrasta/popper.js/issues/796
|
|
* calling just the .update() function on the popper instance sadly does not resolve this.
|
|
* This is however necessary for initial placement.
|
|
*/
|
|
await this.__createPopperInstance();
|
|
this._popper.update();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @event before-hide right before the overlay hides. Used for animations and switching overlays
|
|
* @event hide right after the overlay is hidden
|
|
*/
|
|
async hide() {
|
|
if (this.manager) {
|
|
this.manager.hide(this);
|
|
}
|
|
|
|
if (!this.isShown) {
|
|
return;
|
|
}
|
|
|
|
this.dispatchEvent(new Event('before-hide'));
|
|
// await this.transitionHide({ backdropNode: this.backdropNode, conentNode: this.contentNode });
|
|
this._contentNodeWrapper.style.display = 'none';
|
|
this._handleFeatures({ phase: 'hide' });
|
|
this.dispatchEvent(new Event('hide'));
|
|
this._restoreFocus();
|
|
}
|
|
|
|
// eslint-disable-next-line class-methods-use-this, no-empty-function, no-unused-vars
|
|
async transitionHide({ backdropNode, contentNode }) {}
|
|
|
|
_restoreFocus() {
|
|
// We only are allowed to move focus if we (still) 'own' it.
|
|
// Otherwise we assume the 'outside world' has, purposefully, taken over
|
|
// if (this._contentNodeWrapper.activeElement) {
|
|
if (this.elementToFocusAfterHide) {
|
|
this.elementToFocusAfterHide.focus();
|
|
}
|
|
// }
|
|
}
|
|
|
|
async toggle() {
|
|
return this.isShown ? this.hide() : this.show();
|
|
}
|
|
|
|
/**
|
|
* @desc All features are handled here. Every feature is set up on show
|
|
* and torn
|
|
* @param {object} config
|
|
* @param {'init'|'show'|'hide'|'teardown'} config.phase
|
|
*/
|
|
async _handleFeatures({ phase }) {
|
|
this._handleZIndex({ phase });
|
|
|
|
if (this.preventsScroll) {
|
|
this._handlePreventsScroll({ phase });
|
|
}
|
|
if (this.isBlocking) {
|
|
this._handleBlocking({ phase });
|
|
}
|
|
if (this.hasBackdrop) {
|
|
this._handleBackdrop({ phase });
|
|
}
|
|
if (this.trapsKeyboardFocus) {
|
|
this._handleTrapsKeyboardFocus({ phase });
|
|
}
|
|
if (this.hidesOnEsc) {
|
|
this._handleHidesOnEsc({ phase });
|
|
}
|
|
if (this.hidesOnOutsideClick) {
|
|
this._handleHidesOnOutsideClick({ phase });
|
|
}
|
|
if (this.hidesOnHideEventInContentNode) {
|
|
this._handleHidesOnHideEventInContentNode({ phase });
|
|
}
|
|
if (this.handlesAccessibility) {
|
|
this._handleAccessibility({ phase });
|
|
}
|
|
if (this.inheritsReferenceWidth) {
|
|
this._handleInheritsReferenceWidth();
|
|
}
|
|
}
|
|
|
|
_handlePreventsScroll({ phase }) {
|
|
switch (phase) {
|
|
case 'show':
|
|
this.manager.requestToPreventScroll();
|
|
break;
|
|
case 'hide':
|
|
this.manager.requestToEnableScroll();
|
|
break;
|
|
/* no default */
|
|
}
|
|
}
|
|
|
|
_handleBlocking({ phase }) {
|
|
switch (phase) {
|
|
case 'show':
|
|
this.manager.requestToShowOnly(this);
|
|
break;
|
|
case 'hide':
|
|
this.manager.retractRequestToShowOnly(this);
|
|
break;
|
|
/* no default */
|
|
}
|
|
}
|
|
|
|
get hasActiveBackdrop() {
|
|
return this.__hasActiveBackdrop;
|
|
}
|
|
|
|
/**
|
|
* @desc Sets up backdrop on the given overlay. If there was a backdrop on another element
|
|
* it is removed. Otherwise this is the first time displaying a backdrop, so a fade-in
|
|
* animation is played.
|
|
*/
|
|
_handleBackdrop({ animation = true, phase }) {
|
|
if (this.placementMode === 'local') {
|
|
return; // coming soon...
|
|
}
|
|
const { backdropNode } = this;
|
|
|
|
switch (phase) {
|
|
case 'init':
|
|
this.backdropNode = document.createElement('div');
|
|
this.backdropNode.classList.add('global-overlays__backdrop');
|
|
this.backdropNode.slot = '_overlay-shadow-outlet';
|
|
this._contentNodeWrapper.parentElement.insertBefore(
|
|
this.backdropNode,
|
|
this._contentNodeWrapper,
|
|
);
|
|
break;
|
|
case 'show':
|
|
backdropNode.classList.add('global-overlays__backdrop--visible');
|
|
if (animation === true) {
|
|
backdropNode.classList.add('global-overlays__backdrop--fade-in');
|
|
}
|
|
this.__hasActiveBackdrop = true;
|
|
break;
|
|
case 'hide':
|
|
if (!backdropNode) {
|
|
return;
|
|
}
|
|
backdropNode.classList.remove('global-overlays__backdrop--fade-in');
|
|
|
|
if (animation) {
|
|
let afterFadeOut;
|
|
backdropNode.classList.add('global-overlays__backdrop--fade-out');
|
|
this.__backDropAnimation = new Promise(resolve => {
|
|
afterFadeOut = () => {
|
|
backdropNode.classList.remove('global-overlays__backdrop--fade-out');
|
|
backdropNode.classList.remove('global-overlays__backdrop--visible');
|
|
backdropNode.removeEventListener('animationend', afterFadeOut);
|
|
resolve();
|
|
};
|
|
});
|
|
backdropNode.addEventListener('animationend', afterFadeOut);
|
|
} else {
|
|
backdropNode.classList.remove('global-overlays__backdrop--visible');
|
|
}
|
|
this.__hasActiveBackdrop = false;
|
|
break;
|
|
case 'teardown':
|
|
if (!backdropNode) {
|
|
return;
|
|
}
|
|
if (animation && this.__backDropAnimation) {
|
|
this.__backDropAnimation.then(() => {
|
|
backdropNode.parentNode.removeChild(backdropNode);
|
|
});
|
|
} else {
|
|
backdropNode.parentNode.removeChild(backdropNode);
|
|
}
|
|
break;
|
|
/* no default */
|
|
}
|
|
}
|
|
|
|
get hasActiveTrapsKeyboardFocus() {
|
|
return this.__hasActiveTrapsKeyboardFocus;
|
|
}
|
|
|
|
_handleTrapsKeyboardFocus({ phase }) {
|
|
if (phase === 'show') {
|
|
this.enableTrapsKeyboardFocus();
|
|
} else if (phase === 'hide') {
|
|
this.disableTrapsKeyboardFocus();
|
|
}
|
|
}
|
|
|
|
enableTrapsKeyboardFocus() {
|
|
if (this.__hasActiveTrapsKeyboardFocus) {
|
|
return;
|
|
}
|
|
if (this.manager) {
|
|
this.manager.disableTrapsKeyboardFocusForAll();
|
|
}
|
|
this._containFocusHandler = containFocus(this.contentNode);
|
|
this.__hasActiveTrapsKeyboardFocus = true;
|
|
if (this.manager) {
|
|
this.manager.informTrapsKeyboardFocusGotEnabled();
|
|
}
|
|
}
|
|
|
|
disableTrapsKeyboardFocus({ findNewTrap = true } = {}) {
|
|
if (!this.__hasActiveTrapsKeyboardFocus) {
|
|
return;
|
|
}
|
|
if (this._containFocusHandler) {
|
|
this._containFocusHandler.disconnect();
|
|
this._containFocusHandler = undefined;
|
|
}
|
|
this.__hasActiveTrapsKeyboardFocus = false;
|
|
if (this.manager) {
|
|
this.manager.informTrapsKeyboardFocusGotDisabled({ disabledCtrl: this, findNewTrap });
|
|
}
|
|
}
|
|
|
|
_handleHidesOnEsc({ phase }) {
|
|
if (phase === 'show') {
|
|
this.__escKeyHandler = ev => ev.key === 'Escape' && this.hide();
|
|
this.contentNode.addEventListener('keyup', this.__escKeyHandler);
|
|
if (this.invokerNode) {
|
|
this.invokerNode.addEventListener('keyup', this.__escKeyHandler);
|
|
}
|
|
} else if (phase === 'hide') {
|
|
this.contentNode.removeEventListener('keyup', this.__escKeyHandler);
|
|
if (this.invokerNode) {
|
|
this.invokerNode.removeEventListener('keyup', this.__escKeyHandler);
|
|
}
|
|
}
|
|
}
|
|
|
|
_handleHidesOnHideEventInContentNode({ phase }) {
|
|
if (phase === 'show') {
|
|
this.__hideEventInContentNodeHandler = ev => {
|
|
ev.stopPropagation();
|
|
this.hide();
|
|
};
|
|
this.contentNode.addEventListener('hide', this.__hideEventInContentNodeHandler);
|
|
} else if (phase === 'hide') {
|
|
this.contentNode.removeEventListener('keyup', this.__hideEventInContentNodeHandler);
|
|
}
|
|
}
|
|
|
|
_handleInheritsReferenceWidth() {
|
|
if (!this._referenceNode) {
|
|
return;
|
|
}
|
|
|
|
const referenceWidth = `${this._referenceNode.clientWidth}px`;
|
|
switch (this.inheritsReferenceWidth) {
|
|
case 'max':
|
|
this._contentNodeWrapper.style.maxWidth = referenceWidth;
|
|
break;
|
|
case 'full':
|
|
this._contentNodeWrapper.style.width = referenceWidth;
|
|
break;
|
|
case 'min':
|
|
this._contentNodeWrapper.style.minWidth = referenceWidth;
|
|
break;
|
|
/* no default */
|
|
}
|
|
}
|
|
|
|
_handleHidesOnOutsideClick({ phase }) {
|
|
const addOrRemoveListener = phase === 'show' ? 'addEventListener' : 'removeEventListener';
|
|
|
|
if (phase === 'show') {
|
|
let wasClickInside = false;
|
|
// handle on capture phase and remember till the next task that there was an inside click
|
|
this.__preventCloseOutsideClick = () => {
|
|
wasClickInside = true;
|
|
setTimeout(() => {
|
|
wasClickInside = false;
|
|
});
|
|
};
|
|
// handle on capture phase and schedule the hide if needed
|
|
this.__onCaptureHtmlClick = () => {
|
|
setTimeout(() => {
|
|
if (wasClickInside === false) {
|
|
this.hide();
|
|
}
|
|
});
|
|
};
|
|
}
|
|
|
|
this._contentNodeWrapper[addOrRemoveListener]('click', this.__preventCloseOutsideClick, true);
|
|
if (this.invokerNode) {
|
|
this.invokerNode[addOrRemoveListener]('click', this.__preventCloseOutsideClick, true);
|
|
}
|
|
document.documentElement[addOrRemoveListener]('click', this.__onCaptureHtmlClick, true);
|
|
}
|
|
|
|
_handleAccessibility({ phase }) {
|
|
if (this.invokerNode && !this.isTooltip) {
|
|
this.invokerNode.setAttribute('aria-expanded', phase === 'show');
|
|
}
|
|
}
|
|
|
|
// TODO: Remove when no longer required by OverlayMixin (after updateConfig works properly while opened)
|
|
async updatePopperConfig(config = {}) {
|
|
this.__mergePopperConfigs(config);
|
|
if (this.isShown) {
|
|
await this.__createPopperInstance();
|
|
this._popper.update();
|
|
}
|
|
}
|
|
|
|
teardown() {
|
|
this._handleFeatures({ phase: 'teardown' });
|
|
this._contentNodeWrapper.remove();
|
|
}
|
|
|
|
/**
|
|
* Merges the default config with the current config, and finally with the user supplied config
|
|
* @param {Object} config user supplied configuration
|
|
*/
|
|
__mergePopperConfigs(config = {}) {
|
|
const defaultConfig = {
|
|
placement: 'top',
|
|
positionFixed: false,
|
|
modifiers: {
|
|
keepTogether: {
|
|
enabled: false,
|
|
},
|
|
preventOverflow: {
|
|
enabled: true,
|
|
boundariesElement: 'viewport',
|
|
padding: 16, // viewport-margin for shifting/sliding
|
|
},
|
|
flip: {
|
|
boundariesElement: 'viewport',
|
|
padding: 16, // viewport-margin for flipping
|
|
},
|
|
offset: {
|
|
enabled: true,
|
|
offset: `0, 8px`, // horizontal and vertical margin (distance between popper and referenceElement)
|
|
},
|
|
arrow: {
|
|
enabled: false,
|
|
},
|
|
},
|
|
};
|
|
|
|
/**
|
|
* Deep merging:
|
|
* - default config
|
|
* - previously configured user config
|
|
* - new user added config
|
|
*/
|
|
this.config.popperConfig = {
|
|
...defaultConfig,
|
|
...(this.config.popperConfig || {}),
|
|
...(config || {}),
|
|
modifiers: {
|
|
...defaultConfig.modifiers,
|
|
...((this.config.popperConfig && this.config.popperConfig.modifiers) || {}),
|
|
...((config && config.modifiers) || {}),
|
|
},
|
|
};
|
|
}
|
|
|
|
async __createPopperInstance() {
|
|
if (this._popper) {
|
|
this._popper.destroy();
|
|
this._popper = null;
|
|
}
|
|
const { default: Popper } = await this.constructor.popperModule;
|
|
this._popper = new Popper(this._referenceNode, this._contentNodeWrapper, {
|
|
...this.config.popperConfig,
|
|
});
|
|
}
|
|
|
|
// TODO: this method has to be removed when EventTarget polyfill is available on IE11
|
|
__fakeExtendsEventTarget() {
|
|
const delegate = document.createDocumentFragment();
|
|
['addEventListener', 'dispatchEvent', 'removeEventListener'].forEach(funcName => {
|
|
this[funcName] = (...args) => delegate[funcName](...args);
|
|
});
|
|
}
|
|
}
|