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Named exports from ol/has

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This commit is contained in:
Tim Schaub
2018-02-05 10:10:17 -07:00
parent 348afc4e44
commit 9cfee0f40b
26 changed files with 222 additions and 185 deletions
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65
src/ol/has.js
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@@ -3,8 +3,6 @@
*/
import {HAS_WEBGL} from './index.js';
const _ol_has_ = {};
const ua = typeof navigator !== 'undefined' ?
navigator.userAgent.toLowerCase() : '';
@@ -12,25 +10,25 @@ const ua = typeof navigator !== 'undefined' ?
* User agent string says we are dealing with Firefox as browser.
* @type {boolean}
*/
_ol_has_.FIREFOX = ua.indexOf('firefox') !== -1;
export const FIREFOX = ua.indexOf('firefox') !== -1;
/**
* User agent string says we are dealing with Safari as browser.
* @type {boolean}
*/
_ol_has_.SAFARI = ua.indexOf('safari') !== -1 && ua.indexOf('chrom') == -1;
export const SAFARI = ua.indexOf('safari') !== -1 && ua.indexOf('chrom') == -1;
/**
* User agent string says we are dealing with a WebKit engine.
* @type {boolean}
*/
_ol_has_.WEBKIT = ua.indexOf('webkit') !== -1 && ua.indexOf('edge') == -1;
export const WEBKIT = ua.indexOf('webkit') !== -1 && ua.indexOf('edge') == -1;
/**
* User agent string says we are dealing with a Mac as platform.
* @type {boolean}
*/
_ol_has_.MAC = ua.indexOf('macintosh') !== -1;
export const MAC = ua.indexOf('macintosh') !== -1;
/**
@@ -40,44 +38,22 @@ _ol_has_.MAC = ua.indexOf('macintosh') !== -1;
* @type {number}
* @api
*/
_ol_has_.DEVICE_PIXEL_RATIO = window.devicePixelRatio || 1;
export const DEVICE_PIXEL_RATIO = window.devicePixelRatio || 1;
/**
* True if the browser's Canvas implementation implements {get,set}LineDash.
* @type {boolean}
*/
_ol_has_.CANVAS_LINE_DASH = false;
/**
* True if the and browsers support Canvas.
* @const
* @type {boolean}
* @api
*/
_ol_has_.CANVAS = (
/**
* @return {boolean} Canvas supported.
*/
function() {
if (!('HTMLCanvasElement' in window)) {
return false;
}
try {
const context = document.createElement('CANVAS').getContext('2d');
if (!context) {
return false;
} else {
if (context.setLineDash !== undefined) {
_ol_has_.CANVAS_LINE_DASH = true;
}
return true;
}
} catch (e) {
return false;
}
})();
export const CANVAS_LINE_DASH = function() {
let has = false;
try {
has = !!document.createElement('CANVAS').getContext('2d').setLineDash;
} catch (e) {
// pass
}
return has;
}();
/**
@@ -86,7 +62,7 @@ _ol_has_.CANVAS = (
* @type {boolean}
* @api
*/
_ol_has_.GEOLOCATION = 'geolocation' in navigator;
export const GEOLOCATION = 'geolocation' in navigator;
/**
@@ -95,7 +71,7 @@ _ol_has_.GEOLOCATION = 'geolocation' in navigator;
* @type {boolean}
* @api
*/
_ol_has_.TOUCH = 'ontouchstart' in window;
export const TOUCH = 'ontouchstart' in window;
/**
@@ -103,7 +79,7 @@ _ol_has_.TOUCH = 'ontouchstart' in window;
* @const
* @type {boolean}
*/
_ol_has_.POINTER = 'PointerEvent' in window;
export const POINTER = 'PointerEvent' in window;
/**
@@ -111,7 +87,7 @@ _ol_has_.POINTER = 'PointerEvent' in window;
* @const
* @type {boolean}
*/
_ol_has_.MSPOINTER = !!(navigator.msPointerEnabled);
export const MSPOINTER = !!(navigator.msPointerEnabled);
/**
@@ -120,7 +96,4 @@ _ol_has_.MSPOINTER = !!(navigator.msPointerEnabled);
* @type {boolean}
* @api
*/
_ol_has_.WEBGL = HAS_WEBGL;
export default _ol_has_;
export const WEBGL = HAS_WEBGL;