devextreme/esm/__internal/events/pointer/m_mouse.js

HTML5 JavaScript Component Suite for Responsive Web Development

/**
 * DevExtreme (esm/__internal/events/pointer/m_mouse.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/
 */
import BaseStrategy from "../../../common/core/events/pointer/base";
import Observer from "../../../common/core/events/pointer/observer";
import browser from "../../../core/utils/browser";
import {
    extend
} from "../../../core/utils/extend";
const eventMap = {
    dxpointerdown: "mousedown",
    dxpointermove: "mousemove",
    dxpointerup: "mouseup",
    dxpointercancel: "pointercancel",
    dxpointerover: "mouseover",
    dxpointerout: "mouseout",
    dxpointerenter: "mouseenter",
    dxpointerleave: "mouseleave"
};
if (browser.safari) {
    eventMap.dxpointercancel += " dragstart"
}
const normalizeMouseEvent = function(e) {
    e.pointerId = 1;
    return {
        pointers: observer.pointers(),
        pointerId: 1
    }
};
let observer;
let activated = false;
const activateStrategy = function() {
    if (activated) {
        return
    }
    observer = new Observer(eventMap, (() => true));
    activated = true
};
const MouseStrategy = BaseStrategy.inherit({
    ctor() {
        this.callBase.apply(this, arguments);
        activateStrategy()
    },
    _fireEvent(args) {
        return this.callBase(extend(normalizeMouseEvent(args.originalEvent), args))
    }
});
MouseStrategy.map = eventMap;
MouseStrategy.normalize = normalizeMouseEvent;
MouseStrategy.activate = activateStrategy;
MouseStrategy.resetObserver = function() {
    observer.reset()
};
export default MouseStrategy;