devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
86 lines (85 loc) • 2.59 kB
JavaScript
/**
* DevExtreme (esm/core/utils/support.js)
* Version: 21.2.4
* Build date: Mon Dec 06 2021
*
* Copyright (c) 2012 - 2021 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
import {
inArray
} from "./array";
import domAdapter from "../dom_adapter";
import callOnce from "./call_once";
import {
getNavigator,
hasProperty
} from "./window";
import devices from "../devices";
import {
stylePropPrefix,
styleProp
} from "./style";
var {
maxTouchPoints: maxTouchPoints
} = getNavigator();
var transitionEndEventNames = {
webkitTransition: "webkitTransitionEnd",
MozTransition: "transitionend",
OTransition: "oTransitionEnd",
transition: "transitionend"
};
var supportProp = function(prop) {
return !!styleProp(prop)
};
var isNativeScrollingSupported = function() {
var {
platform: platform,
version: version,
mac: isMac
} = devices.real();
var isObsoleteAndroid = version && version[0] < 4 && "android" === platform;
var isNativeScrollDevice = !isObsoleteAndroid && inArray(platform, ["ios", "android"]) > -1 || isMac;
return isNativeScrollDevice
};
var inputType = function(type) {
if ("text" === type) {
return true
}
var input = domAdapter.createElement("input");
try {
input.setAttribute("type", type);
input.value = "wrongValue";
return !input.value
} catch (e) {
return false
}
};
var detectTouchEvents = function(hasWindowProperty, maxTouchPoints) {
return (hasWindowProperty("ontouchstart") || !!maxTouchPoints) && !hasWindowProperty("callPhantom")
};
var detectPointerEvent = function(hasWindowProperty) {
return hasWindowProperty("PointerEvent")
};
var touchEvents = detectTouchEvents(hasProperty, maxTouchPoints);
var pointerEvents = detectPointerEvent(hasProperty);
var touchPointersPresent = !!maxTouchPoints;
export {
touchEvents,
pointerEvents,
styleProp,
stylePropPrefix,
supportProp,
inputType
};
export var touch = touchEvents || pointerEvents && touchPointersPresent;
export var transition = callOnce((function() {
return supportProp("transition")
}));
export var transitionEndEventName = callOnce((function() {
return transitionEndEventNames[styleProp("transition")]
}));
export var animation = callOnce((function() {
return supportProp("animation")
}));
export var nativeScrolling = isNativeScrollingSupported();