devextreme/cjs/__internal/events/dblclick.js

HTML5 JavaScript Component Suite for Responsive Web Development

/**
 * DevExtreme (cjs/__internal/events/dblclick.js)
 * Version: 23.2.6
 * Build date: Wed May 01 2024
 *
 * Copyright (c) 2012 - 2024 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.name = exports.dblClick = void 0;
var _class = _interopRequireDefault(require("../../core/class"));
var _dom_adapter = _interopRequireDefault(require("../../core/dom_adapter"));
var _dom = require("../../core/utils/dom");
var _click = require("../../events/click");
var _events_engine = _interopRequireDefault(require("../../events/core/events_engine"));
var _index = require("../../events/utils/index");

function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : {
        default: obj
    }
}
const DBLCLICK_EVENT_NAME = "dxdblclick";
exports.name = "dxdblclick";
const DBLCLICK_NAMESPACE = "dxDblClick";
const NAMESPACED_CLICK_EVENT = (0, _index.addNamespace)(_click.name, "dxDblClick");
const DBLCLICK_TIMEOUT = 300;
const DblClick = _class.default.inherit({
    ctor() {
        this._handlerCount = 0;
        this._forgetLastClick()
    },
    _forgetLastClick() {
        this._firstClickTarget = null;
        this._lastClickTimeStamp = -300
    },
    add() {
        if (this._handlerCount <= 0) {
            _events_engine.default.on(_dom_adapter.default.getDocument(), NAMESPACED_CLICK_EVENT, this._clickHandler.bind(this))
        }
        this._handlerCount += 1
    },
    _clickHandler(e) {
        const timeStamp = e.timeStamp || Date.now();
        const timeBetweenClicks = timeStamp - this._lastClickTimeStamp;
        const isSimulated = timeBetweenClicks < 0;
        const isDouble = !isSimulated && timeBetweenClicks < 300;
        if (isDouble) {
            (0, _index.fireEvent)({
                type: "dxdblclick",
                target: (0, _dom.closestCommonParent)(this._firstClickTarget, e.target),
                originalEvent: e
            });
            this._forgetLastClick()
        } else {
            this._firstClickTarget = e.target;
            this._lastClickTimeStamp = timeStamp
        }
    },
    remove() {
        this._handlerCount -= 1;
        if (this._handlerCount <= 0) {
            this._forgetLastClick();
            _events_engine.default.off(_dom_adapter.default.getDocument(), NAMESPACED_CLICK_EVENT, void 0);
            this._handlerCount = 0
        }
    }
});
const dblClick = new DblClick;
exports.dblClick = dblClick;