devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
68 lines (67 loc) • 2.56 kB
JavaScript
/**
* DevExtreme (core/utils/support.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/
*/
;
var inArray = require("./array").inArray,
domAdapter = require("../dom_adapter"),
callOnce = require("./call_once"),
windowUtils = require("./window"),
navigator = windowUtils.getNavigator(),
devices = require("../devices"),
styleUtils = require("./style");
var transitionEndEventNames = {
webkitTransition: "webkitTransitionEnd",
MozTransition: "transitionend",
OTransition: "oTransitionEnd",
msTransition: "MsTransitionEnd",
transition: "transitionend"
};
var supportProp = function(prop) {
return !!styleUtils.styleProp(prop)
};
var isNativeScrollingSupported = function() {
var realDevice = devices.real(),
realPlatform = realDevice.platform,
realVersion = realDevice.version,
isObsoleteAndroid = realVersion && realVersion[0] < 4 && "android" === realPlatform,
isNativeScrollDevice = !isObsoleteAndroid && inArray(realPlatform, ["ios", "android", "win"]) > -1 || realDevice.mac;
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 touchEvents = windowUtils.hasProperty("ontouchstart") && !windowUtils.hasProperty("callPhantom"),
pointerEvents = !!navigator.pointerEnabled || !!navigator.msPointerEnabled,
touchPointersPresent = !!navigator.maxTouchPoints || !!navigator.msMaxTouchPoints;
exports.touchEvents = touchEvents;
exports.pointerEvents = pointerEvents;
exports.touch = touchEvents || pointerEvents && touchPointersPresent;
exports.transition = callOnce(function() {
return supportProp("transition")
});
exports.transitionEndEventName = callOnce(function() {
return transitionEndEventNames[styleUtils.styleProp("transition")]
});
exports.animation = callOnce(function() {
return supportProp("animation")
});
exports.nativeScrolling = isNativeScrollingSupported();
exports.styleProp = styleUtils.styleProp;
exports.stylePropPrefix = styleUtils.stylePropPrefix;
exports.supportProp = supportProp;
exports.inputType = inputType;