devextreme
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HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (events/pointer/mouse_and_touch.js)
* Version: 18.1.3
* Build date: Tue May 15 2018
*
* Copyright (c) 2012 - 2018 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
"use strict";
var extend = require("../../core/utils/extend").extend,
BaseStrategy = require("./base"),
MouseStrategy = require("./mouse"),
TouchStrategy = require("./touch"),
eventUtils = require("../utils");
var eventMap = {
dxpointerdown: "touchstart mousedown",
dxpointermove: "touchmove mousemove",
dxpointerup: "touchend mouseup",
dxpointercancel: "touchcancel",
dxpointerover: "mouseover",
dxpointerout: "mouseout",
dxpointerenter: "mouseenter",
dxpointerleave: "mouseleave"
};
var activated = false;
var activateStrategy = function() {
if (activated) {
return
}
MouseStrategy.activate();
activated = true
};
var MouseAndTouchStrategy = BaseStrategy.inherit({
EVENT_LOCK_TIMEOUT: 100,
ctor: function() {
this.callBase.apply(this, arguments);
activateStrategy()
},
_handler: function(e) {
var isMouseEvent = eventUtils.isMouseEvent(e);
if (!isMouseEvent) {
this._skipNextEvents = true
}
if (isMouseEvent && this._mouseLocked) {
return
}
if (isMouseEvent && this._skipNextEvents) {
this._skipNextEvents = false;
this._mouseLocked = true;
clearTimeout(this._unlockMouseTimer);
var that = this;
this._unlockMouseTimer = setTimeout(function() {
that._mouseLocked = false
}, this.EVENT_LOCK_TIMEOUT);
return
}
return this.callBase(e)
},
_fireEvent: function(args) {
var isMouseEvent = eventUtils.isMouseEvent(args.originalEvent),
normalizer = isMouseEvent ? MouseStrategy.normalize : TouchStrategy.normalize;
return this.callBase(extend(normalizer(args.originalEvent), args))
},
dispose: function() {
this.callBase();
this._skipNextEvents = false;
this._mouseLocked = false;
clearTimeout(this._unlockMouseTimer)
}
});
MouseAndTouchStrategy.map = eventMap;
MouseAndTouchStrategy.resetObserver = MouseStrategy.resetObserver;
module.exports = MouseAndTouchStrategy;