| /** |
| * @license |
| * Copyright Google LLC All Rights Reserved. |
| * |
| * Use of this source code is governed by an MIT-style license that can be |
| * found in the LICENSE file at https://angular.io/license |
| */ |
| import { Inject, Injectable, Optional, PLATFORM_ID, NgModule, ɵɵdefineInjectable, ɵɵinject } from '@angular/core'; |
| import { isPlatformBrowser } from '@angular/common'; |
| |
| /** |
| * @fileoverview added by tsickle |
| * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| // Whether the current platform supports the V8 Break Iterator. The V8 check |
| // is necessary to detect all Blink based browsers. |
| /** @type {?} */ |
| 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' && ((/** @type {?} */ (Intl))).v8BreakIterator); |
| } |
| catch (_a) { |
| hasV8BreakIterator = false; |
| } |
| /** |
| * Service to detect the current platform by comparing the userAgent strings and |
| * checking browser-specific global properties. |
| */ |
| class Platform { |
| /** |
| * \@breaking-change 8.0.0 remove optional decorator |
| * @param {?=} _platformId |
| */ |
| constructor(_platformId) { |
| this._platformId = _platformId; |
| /** |
| * Whether the Angular application is being rendered in the browser. |
| * 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 |
| */ |
| this.isBrowser = this._platformId ? |
| isPlatformBrowser(this._platformId) : typeof document === 'object' && !!document; |
| /** |
| * Whether the current browser is Microsoft Edge. |
| */ |
| this.EDGE = this.isBrowser && /(edge)/i.test(navigator.userAgent); |
| /** |
| * Whether the current rendering engine is Microsoft Trident. |
| */ |
| this.TRIDENT = this.isBrowser && /(msie|trident)/i.test(navigator.userAgent); |
| /** |
| * Whether the current rendering engine is Blink. |
| */ |
| // EdgeHTML and Trident mock Blink specific things and need to be excluded from this check. |
| this.BLINK = this.isBrowser && (!!(((/** @type {?} */ (window))).chrome || hasV8BreakIterator) && |
| typeof CSS !== 'undefined' && !this.EDGE && !this.TRIDENT); |
| /** |
| * Whether the current rendering engine is WebKit. |
| */ |
| // 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. |
| this.WEBKIT = this.isBrowser && |
| /AppleWebKit/i.test(navigator.userAgent) && !this.BLINK && !this.EDGE && !this.TRIDENT; |
| /** |
| * Whether the current platform is Apple iOS. |
| */ |
| this.IOS = this.isBrowser && /iPad|iPhone|iPod/.test(navigator.userAgent) && |
| !('MSStream' in window); |
| /** |
| * Whether the current browser is Firefox. |
| */ |
| // 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. |
| this.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. |
| this.ANDROID = this.isBrowser && /android/i.test(navigator.userAgent) && !this.TRIDENT; |
| /** |
| * Whether the current browser is Safari. |
| */ |
| // 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. |
| this.SAFARI = this.isBrowser && /safari/i.test(navigator.userAgent) && this.WEBKIT; |
| } |
| } |
| Platform.decorators = [ |
| { type: Injectable, args: [{ providedIn: 'root' },] }, |
| ]; |
| /** @nocollapse */ |
| Platform.ctorParameters = () => [ |
| { type: Object, decorators: [{ type: Optional }, { type: Inject, args: [PLATFORM_ID,] }] } |
| ]; |
| /** @nocollapse */ Platform.ngInjectableDef = ɵɵdefineInjectable({ factory: function Platform_Factory() { return new Platform(ɵɵinject(PLATFORM_ID, 8)); }, token: Platform, providedIn: "root" }); |
| |
| /** |
| * @fileoverview added by tsickle |
| * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| class PlatformModule { |
| } |
| PlatformModule.decorators = [ |
| { type: NgModule, args: [{},] }, |
| ]; |
| |
| /** |
| * @fileoverview added by tsickle |
| * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| |
| /** |
| * Cached result Set of input types support by the current browser. |
| * @type {?} |
| */ |
| let supportedInputTypes; |
| /** |
| * Types of `<input>` that *might* be supported. |
| * @type {?} |
| */ |
| const candidateInputTypes = [ |
| // `color` must come first. Chrome 56 shows a warning if we change the type to `color` after |
| // first changing it to something else: |
| // The specified value "" does not conform to the required format. |
| // The format is "#rrggbb" where rr, gg, bb are two-digit hexadecimal numbers. |
| 'color', |
| 'button', |
| 'checkbox', |
| 'date', |
| 'datetime-local', |
| 'email', |
| 'file', |
| 'hidden', |
| 'image', |
| 'month', |
| 'number', |
| 'password', |
| 'radio', |
| 'range', |
| 'reset', |
| 'search', |
| 'submit', |
| 'tel', |
| 'text', |
| 'time', |
| 'url', |
| 'week', |
| ]; |
| /** |
| * @return {?} The input types supported by this browser. |
| */ |
| function getSupportedInputTypes() { |
| // Result is cached. |
| if (supportedInputTypes) { |
| return supportedInputTypes; |
| } |
| // We can't check if an input type is not supported until we're on the browser, so say that |
| // everything is supported when not on the browser. We don't use `Platform` here since it's |
| // just a helper function and can't inject it. |
| if (typeof document !== 'object' || !document) { |
| supportedInputTypes = new Set(candidateInputTypes); |
| return supportedInputTypes; |
| } |
| /** @type {?} */ |
| let featureTestInput = document.createElement('input'); |
| supportedInputTypes = new Set(candidateInputTypes.filter((/** |
| * @param {?} value |
| * @return {?} |
| */ |
| value => { |
| featureTestInput.setAttribute('type', value); |
| return featureTestInput.type === value; |
| }))); |
| return supportedInputTypes; |
| } |
| |
| /** |
| * @fileoverview added by tsickle |
| * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| |
| /** |
| * Cached result of whether the user's browser supports passive event listeners. |
| * @type {?} |
| */ |
| let supportsPassiveEvents; |
| /** |
| * Checks whether the user's browser supports passive event listeners. |
| * See: https://github.com/WICG/EventListenerOptions/blob/gh-pages/explainer.md |
| * @return {?} |
| */ |
| function supportsPassiveEventListeners() { |
| if (supportsPassiveEvents == null && typeof window !== 'undefined') { |
| try { |
| window.addEventListener('test', (/** @type {?} */ (null)), Object.defineProperty({}, 'passive', { |
| get: (/** |
| * @return {?} |
| */ |
| () => supportsPassiveEvents = true) |
| })); |
| } |
| finally { |
| supportsPassiveEvents = supportsPassiveEvents || false; |
| } |
| } |
| return supportsPassiveEvents; |
| } |
| /** |
| * Normalizes an `AddEventListener` object to something that can be passed |
| * to `addEventListener` on any browser, no matter whether it supports the |
| * `options` parameter. |
| * @param {?} options Object to be normalized. |
| * @return {?} |
| */ |
| function normalizePassiveListenerOptions(options) { |
| return supportsPassiveEventListeners() ? options : !!options.capture; |
| } |
| |
| /** |
| * @fileoverview added by tsickle |
| * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| |
| /** @enum {number} */ |
| const RtlScrollAxisType = { |
| /** |
| * scrollLeft is 0 when scrolled all the way left and (scrollWidth - clientWidth) when scrolled |
| * all the way right. |
| */ |
| NORMAL: 0, |
| /** |
| * scrollLeft is -(scrollWidth - clientWidth) when scrolled all the way left and 0 when scrolled |
| * all the way right. |
| */ |
| NEGATED: 1, |
| /** |
| * scrollLeft is (scrollWidth - clientWidth) when scrolled all the way left and 0 when scrolled |
| * all the way right. |
| */ |
| INVERTED: 2, |
| }; |
| RtlScrollAxisType[RtlScrollAxisType.NORMAL] = 'NORMAL'; |
| RtlScrollAxisType[RtlScrollAxisType.NEGATED] = 'NEGATED'; |
| RtlScrollAxisType[RtlScrollAxisType.INVERTED] = 'INVERTED'; |
| /** |
| * Cached result of the way the browser handles the horizontal scroll axis in RTL mode. |
| * @type {?} |
| */ |
| let rtlScrollAxisType; |
| /** |
| * Check whether the browser supports scroll behaviors. |
| * @return {?} |
| */ |
| function supportsScrollBehavior() { |
| return !!(typeof document == 'object' && 'scrollBehavior' in (/** @type {?} */ (document.documentElement)).style); |
| } |
| /** |
| * Checks the type of RTL scroll axis used by this browser. As of time of writing, Chrome is NORMAL, |
| * Firefox & Safari are NEGATED, and IE & Edge are INVERTED. |
| * @return {?} |
| */ |
| function getRtlScrollAxisType() { |
| // We can't check unless we're on the browser. Just assume 'normal' if we're not. |
| if (typeof document !== 'object' || !document) { |
| return RtlScrollAxisType.NORMAL; |
| } |
| if (!rtlScrollAxisType) { |
| // Create a 1px wide scrolling container and a 2px wide content element. |
| /** @type {?} */ |
| const scrollContainer = document.createElement('div'); |
| /** @type {?} */ |
| const containerStyle = scrollContainer.style; |
| scrollContainer.dir = 'rtl'; |
| containerStyle.height = '1px'; |
| containerStyle.width = '1px'; |
| containerStyle.overflow = 'auto'; |
| containerStyle.visibility = 'hidden'; |
| containerStyle.pointerEvents = 'none'; |
| containerStyle.position = 'absolute'; |
| /** @type {?} */ |
| const content = document.createElement('div'); |
| /** @type {?} */ |
| const contentStyle = content.style; |
| contentStyle.width = '2px'; |
| contentStyle.height = '1px'; |
| scrollContainer.appendChild(content); |
| document.body.appendChild(scrollContainer); |
| rtlScrollAxisType = RtlScrollAxisType.NORMAL; |
| // The viewport starts scrolled all the way to the right in RTL mode. If we are in a NORMAL |
| // browser this would mean that the scrollLeft should be 1. If it's zero instead we know we're |
| // dealing with one of the other two types of browsers. |
| if (scrollContainer.scrollLeft === 0) { |
| // In a NEGATED browser the scrollLeft is always somewhere in [-maxScrollAmount, 0]. For an |
| // INVERTED browser it is always somewhere in [0, maxScrollAmount]. We can determine which by |
| // setting to the scrollLeft to 1. This is past the max for a NEGATED browser, so it will |
| // return 0 when we read it again. |
| scrollContainer.scrollLeft = 1; |
| rtlScrollAxisType = |
| scrollContainer.scrollLeft === 0 ? RtlScrollAxisType.NEGATED : RtlScrollAxisType.INVERTED; |
| } |
| (/** @type {?} */ (scrollContainer.parentNode)).removeChild(scrollContainer); |
| } |
| return rtlScrollAxisType; |
| } |
| |
| /** |
| * @fileoverview added by tsickle |
| * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| |
| /** |
| * @fileoverview added by tsickle |
| * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| |
| export { Platform, PlatformModule, getSupportedInputTypes, supportsPassiveEventListeners, normalizePassiveListenerOptions, supportsScrollBehavior, getRtlScrollAxisType, RtlScrollAxisType }; |
| //# sourceMappingURL=platform.js.map |
