devextreme/cjs/__internal/events/core/m_emitter.js

HTML5 JavaScript Component Suite for Responsive Web Development

/**
 * DevExtreme (cjs/__internal/events/core/m_emitter.js)
 * Version: 24.2.6
 * Build date: Mon Mar 17 2025
 *
 * Copyright (c) 2012 - 2025 Developer Express Inc. ALL RIGHTS RESERVED
 * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
 */

"use strict";
Object.defineProperty(exports, "__esModule", {
    value: true
});
exports.default = void 0;
var _index = require("../../../common/core/events/utils/index");
var _class = _interopRequireDefault(require("../../../core/class"));
var _renderer = _interopRequireDefault(require("../../../core/renderer"));
var _callbacks = _interopRequireDefault(require("../../../core/utils/callbacks"));
var _common = require("../../../core/utils/common");
var _extend = require("../../../core/utils/extend");

function _interopRequireDefault(e) {
    return e && e.__esModule ? e : {
        default: e
    }
}
const Emitter = _class.default.inherit({
    ctor(element) {
        this._$element = (0, _renderer.default)(element);
        this._cancelCallback = (0, _callbacks.default)();
        this._acceptCallback = (0, _callbacks.default)()
    },
    getElement() {
        return this._$element
    },
    validate: e => !(0, _index.isDxMouseWheelEvent)(e),
    validatePointers: e => 1 === (0, _index.hasTouches)(e),
    allowInterruptionByMouseWheel: () => true,
    configure(data) {
        (0, _extend.extend)(this, data)
    },
    addCancelCallback(callback) {
        this._cancelCallback.add(callback)
    },
    removeCancelCallback() {
        this._cancelCallback.empty()
    },
    _cancel(e) {
        this._cancelCallback.fire(this, e)
    },
    addAcceptCallback(callback) {
        this._acceptCallback.add(callback)
    },
    removeAcceptCallback() {
        this._acceptCallback.empty()
    },
    _accept(e) {
        this._acceptCallback.fire(this, e)
    },
    _requestAccept(e) {
        this._acceptRequestEvent = e
    },
    _forgetAccept() {
        this._accept(this._acceptRequestEvent);
        this._acceptRequestEvent = null
    },
    start: _common.noop,
    move: _common.noop,
    end: _common.noop,
    cancel: _common.noop,
    reset() {
        if (this._acceptRequestEvent) {
            this._accept(this._acceptRequestEvent)
        }
    },
    _fireEvent(eventName, e, params) {
        const eventData = (0, _extend.extend)({
            type: eventName,
            originalEvent: e,
            target: this._getEmitterTarget(e),
            delegateTarget: this.getElement().get(0)
        }, params);
        e = (0, _index.fireEvent)(eventData);
        if (e.cancel) {
            this._cancel(e)
        }
        return e
    },
    _getEmitterTarget(e) {
        return (this.delegateSelector ? (0, _renderer.default)(e.target).closest(this.delegateSelector) : this.getElement()).get(0)
    },
    dispose: _common.noop
});
var _default = exports.default = Emitter;