30 lines
626 B
JavaScript
30 lines
626 B
JavaScript
goog.provide('ol.BrowserFeature');
|
|
|
|
|
|
/**
|
|
* @define {boolean} Assume touch.
|
|
*/
|
|
ol.ASSUME_TOUCH = false;
|
|
|
|
|
|
/**
|
|
* @type {Object}
|
|
*/
|
|
ol.BrowserFeature = {
|
|
/**
|
|
* The ratio between physical pixels and device-independent pixels
|
|
* (dips) on the device (`window.devicePixelRatio`).
|
|
* @type {number}
|
|
*/
|
|
DEVICE_PIXEL_RATIO: goog.global.devicePixelRatio || 1,
|
|
|
|
/**
|
|
* True if browser supports touch events.
|
|
* @type {boolean}
|
|
*/
|
|
HAS_TOUCH: ol.ASSUME_TOUCH ||
|
|
(goog.global.document &&
|
|
'ontouchstart' in goog.global.document.documentElement) ||
|
|
!!(goog.global.navigator.msPointerEnabled)
|
|
};
|