@antv/x6
Version:
JavaScript diagramming library that uses SVG and HTML for rendering.
98 lines • 3.86 kB
JavaScript
const ua = navigator.userAgent;
export var Platform;
(function (Platform) {
Platform.IS_MAC = navigator.appVersion.indexOf('Mac') > 0;
Platform.IS_IOS = !!ua.match(/(iPad|iPhone|iPod)/g);
Platform.IS_WINDOWS = navigator.appVersion.indexOf('Win') > 0;
Platform.IS_IE = ua.indexOf('MSIE') >= 0;
Platform.IS_IE11 = !!ua.match(/Trident\/7\./);
Platform.IS_EDGE = !!ua.match(/Edge\//);
/**
* A flag indicating whether the browser is Netscape (including Firefox).
*/
Platform.IS_NETSCAPE = ua.indexOf('Mozilla/') >= 0 &&
ua.indexOf('MSIE') < 0 &&
ua.indexOf('Edge/') < 0;
/**
* A flag indicating whether the the this is running inside a Chrome App.
*/
Platform.IS_CHROME_APP = window.chrome != null &&
window.chrome.app != null &&
window.chrome.app.runtime != null;
Platform.IS_CHROME = ua.indexOf('Chrome/') >= 0 && ua.indexOf('Edge/') < 0;
Platform.IS_OPERA = ua.indexOf('Opera/') >= 0 || ua.indexOf('OPR/') >= 0;
Platform.IS_FIREFOX = ua.indexOf('Firefox/') >= 0;
Platform.IS_SAFARI = ua.indexOf('AppleWebKit/') >= 0 &&
ua.indexOf('Chrome/') < 0 &&
ua.indexOf('Edge/') < 0;
/**
* A flag indicating whether this device supports touchstart/-move/-end
* events (Apple iOS, Android, Chromebook and Chrome Browser on touch-enabled
* devices).
*/
Platform.SUPPORT_TOUCH = 'ontouchstart' in document.documentElement;
/**
* A flag indicating whether this device supports Microsoft pointer events.
*/
Platform.SUPPORT_POINTER = window.PointerEvent != null && !Platform.IS_MAC;
Platform.SUPPORT_PASSIVE = false; // eslint-disable-line import/no-mutable-exports
try {
const options = Object.defineProperty({}, 'passive', {
get() {
Platform.SUPPORT_PASSIVE = true;
},
});
const div = document.createElement('div');
if (div.addEventListener) {
div.addEventListener('click', () => { }, options);
}
}
catch (err) {
// pass
}
/**
* A flag indicating whether foreignObject support is not available. This
* is the case for Opera, older SVG-based browsers and all versions of IE.
*/
Platform.NO_FOREIGNOBJECT = !document.createElementNS ||
`${document.createElementNS('http://www.w3.org/2000/svg', 'foreignObject')}` !== '[object SVGForeignObjectElement]' ||
ua.indexOf('Opera/') >= 0;
Platform.SUPPORT_FOREIGNOBJECT = !Platform.NO_FOREIGNOBJECT;
})(Platform || (Platform = {}));
(function (Platform) {
function getHMRStatus() {
const mod = window.module;
if (mod != null && mod.hot != null && mod.hot.status != null) {
return mod.hot.status();
}
return 'unkonwn';
}
Platform.getHMRStatus = getHMRStatus;
function isApplyingHMR() {
return getHMRStatus() === 'apply';
}
Platform.isApplyingHMR = isApplyingHMR;
// This function checks if the specified event is supported by the browser.
// Source: http://perfectionkills.com/detecting-event-support-without-browser-sniffing/
const TAGNAMES = {
select: 'input',
change: 'input',
submit: 'form',
reset: 'form',
error: 'img',
load: 'img',
abort: 'img',
};
function isEventSupported(event) {
const elem = document.createElement(TAGNAMES[event] || 'div');
const eventName = `on${event}`;
let isSupported = eventName in elem;
if (!isSupported) {
elem.setAttribute(eventName, 'return;');
isSupported = typeof elem[eventName] === 'function';
}
return isSupported;
}
Platform.isEventSupported = isEventSupported;
})(Platform || (Platform = {}));
//# sourceMappingURL=index.js.map