@angular/cdk
Version:
Angular Material Component Development Kit
78 lines (75 loc) • 4.3 kB
JavaScript
import * as i0 from '@angular/core';
import { inject, PLATFORM_ID, Injectable } from '@angular/core';
import { isPlatformBrowser } from '@angular/common';
// Whether the current platform supports the V8 Break Iterator. The V8 check
// is necessary to detect all Blink based browsers.
let hasV8BreakIterator;
// We need a try/catch around the reference to `Intl`, because accessing it in some cases can
// cause IE to throw. These cases are tied to particular versions of Windows and can happen if
// the consumer is providing a polyfilled `Map`. See:
// https://github.com/Microsoft/ChakraCore/issues/3189
// https://github.com/angular/components/issues/15687
try {
hasV8BreakIterator = typeof Intl !== 'undefined' && Intl.v8BreakIterator;
}
catch {
hasV8BreakIterator = false;
}
/**
* Service to detect the current platform by comparing the userAgent strings and
* checking browser-specific global properties.
*/
class Platform {
_platformId = inject(PLATFORM_ID);
// We want to use the Angular platform check because if the Document is shimmed
// without the navigator, the following checks will fail. This is preferred because
// sometimes the Document may be shimmed without the user's knowledge or intention
/** Whether the Angular application is being rendered in the browser. */
isBrowser = this._platformId
? isPlatformBrowser(this._platformId)
: typeof document === 'object' && !!document;
/** Whether the current browser is Microsoft Edge. */
EDGE = this.isBrowser && /(edge)/i.test(navigator.userAgent);
/** Whether the current rendering engine is Microsoft Trident. */
TRIDENT = this.isBrowser && /(msie|trident)/i.test(navigator.userAgent);
// EdgeHTML and Trident mock Blink specific things and need to be excluded from this check.
/** Whether the current rendering engine is Blink. */
BLINK = this.isBrowser &&
!!(window.chrome || hasV8BreakIterator) &&
typeof CSS !== 'undefined' &&
!this.EDGE &&
!this.TRIDENT;
// Webkit is part of the userAgent in EdgeHTML, Blink and Trident. Therefore we need to
// ensure that Webkit runs standalone and is not used as another engine's base.
/** Whether the current rendering engine is WebKit. */
WEBKIT = this.isBrowser &&
/AppleWebKit/i.test(navigator.userAgent) &&
!this.BLINK &&
!this.EDGE &&
!this.TRIDENT;
/** Whether the current platform is Apple iOS. */
IOS = this.isBrowser && /iPad|iPhone|iPod/.test(navigator.userAgent) && !('MSStream' in window);
// It's difficult to detect the plain Gecko engine, because most of the browsers identify
// them self as Gecko-like browsers and modify the userAgent's according to that.
// Since we only cover one explicit Firefox case, we can simply check for Firefox
// instead of having an unstable check for Gecko.
/** Whether the current browser is Firefox. */
FIREFOX = this.isBrowser && /(firefox|minefield)/i.test(navigator.userAgent);
/** Whether the current platform is Android. */
// Trident on mobile adds the android platform to the userAgent to trick detections.
ANDROID = this.isBrowser && /android/i.test(navigator.userAgent) && !this.TRIDENT;
// Safari browsers will include the Safari keyword in their userAgent. Some browsers may fake
// this and just place the Safari keyword in the userAgent. To be more safe about Safari every
// Safari browser should also use Webkit as its layout engine.
/** Whether the current browser is Safari. */
SAFARI = this.isBrowser && /safari/i.test(navigator.userAgent) && this.WEBKIT;
constructor() { }
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "19.2.0", ngImport: i0, type: Platform, deps: [], target: i0.ɵɵFactoryTarget.Injectable });
static ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "19.2.0", ngImport: i0, type: Platform, providedIn: 'root' });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "19.2.0", ngImport: i0, type: Platform, decorators: [{
type: Injectable,
args: [{ providedIn: 'root' }]
}], ctorParameters: () => [] });
export { Platform as P };
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