132 lines
4.3 KiB
TypeScript
132 lines
4.3 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {getDOM} from '../src/dom/dom_adapter';
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import {ListWrapper} from '../src/facade/collection';
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import {RegExp, RegExpWrapper, StringWrapper, global, isPresent, isString} from '../src/facade/lang';
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export class BrowserDetection {
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private _overrideUa: string;
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private get _ua(): string {
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if (isPresent(this._overrideUa)) {
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return this._overrideUa;
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} else {
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return isPresent(getDOM()) ? getDOM().getUserAgent() : '';
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}
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}
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static setup() { browserDetection = new BrowserDetection(null); }
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constructor(ua: string) { this._overrideUa = ua; }
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get isFirefox(): boolean { return this._ua.indexOf('Firefox') > -1; }
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get isAndroid(): boolean {
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return this._ua.indexOf('Mozilla/5.0') > -1 && this._ua.indexOf('Android') > -1 &&
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this._ua.indexOf('AppleWebKit') > -1 && this._ua.indexOf('Chrome') == -1 &&
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this._ua.indexOf('IEMobile') == -1;
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}
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get isEdge(): boolean { return this._ua.indexOf('Edge') > -1; }
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get isIE(): boolean { return this._ua.indexOf('Trident') > -1; }
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get isWebkit(): boolean {
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return this._ua.indexOf('AppleWebKit') > -1 && this._ua.indexOf('Edge') == -1 &&
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this._ua.indexOf('IEMobile') == -1;
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}
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get isIOS7(): boolean {
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return (this._ua.indexOf('iPhone OS 7') > -1 || this._ua.indexOf('iPad OS 7') > -1) &&
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this._ua.indexOf('IEMobile') == -1;
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}
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get isSlow(): boolean { return this.isAndroid || this.isIE || this.isIOS7; }
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// The Intl API is only properly supported in recent Chrome and Opera.
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// Note: Edge is disguised as Chrome 42, so checking the "Edge" part is needed,
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// see https://msdn.microsoft.com/en-us/library/hh869301(v=vs.85).aspx
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get supportsIntlApi(): boolean { return !!(<any>global).Intl; }
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get isChromeDesktop(): boolean {
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return this._ua.indexOf('Chrome') > -1 && this._ua.indexOf('Mobile Safari') == -1 &&
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this._ua.indexOf('Edge') == -1;
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}
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}
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BrowserDetection.setup();
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export function dispatchEvent(
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element: any /** TODO #9100 */, eventType: any /** TODO #9100 */): void {
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getDOM().dispatchEvent(element, getDOM().createEvent(eventType));
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}
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export function el(html: string): HTMLElement {
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return <HTMLElement>getDOM().firstChild(getDOM().content(getDOM().createTemplate(html)));
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}
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export function normalizeCSS(css: string): string {
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css = StringWrapper.replaceAll(css, /\s+/g, ' ');
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css = StringWrapper.replaceAll(css, /:\s/g, ':');
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css = StringWrapper.replaceAll(css, /'/g, '"');
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css = StringWrapper.replaceAll(css, / }/g, '}');
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css = StringWrapper.replaceAllMapped(
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css, /url\((\"|\s)(.+)(\"|\s)\)(\s*)/g,
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(match: any /** TODO #9100 */) => `url("${match[2]}")`);
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css = StringWrapper.replaceAllMapped(
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css, /\[(.+)=([^"\]]+)\]/g, (match: any /** TODO #9100 */) => `[${match[1]}="${match[2]}"]`);
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return css;
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}
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var _singleTagWhitelist = ['br', 'hr', 'input'];
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export function stringifyElement(el: any /** TODO #9100 */): string {
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var result = '';
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if (getDOM().isElementNode(el)) {
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var tagName = getDOM().tagName(el).toLowerCase();
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// Opening tag
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result += `<${tagName}`;
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// Attributes in an ordered way
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var attributeMap = getDOM().attributeMap(el);
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var keys: any[] /** TODO #9100 */ = [];
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attributeMap.forEach((v, k) => keys.push(k));
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ListWrapper.sort(keys);
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for (let i = 0; i < keys.length; i++) {
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var key = keys[i];
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var attValue = attributeMap.get(key);
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if (!isString(attValue)) {
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result += ` ${key}`;
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} else {
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result += ` ${key}="${attValue}"`;
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}
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}
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result += '>';
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// Children
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var childrenRoot = getDOM().templateAwareRoot(el);
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var children = isPresent(childrenRoot) ? getDOM().childNodes(childrenRoot) : [];
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for (let j = 0; j < children.length; j++) {
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result += stringifyElement(children[j]);
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}
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// Closing tag
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if (!ListWrapper.contains(_singleTagWhitelist, tagName)) {
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result += `</${tagName}>`;
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}
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} else if (getDOM().isCommentNode(el)) {
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result += `<!--${getDOM().nodeValue(el)}-->`;
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} else {
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result += getDOM().getText(el);
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}
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return result;
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}
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export var browserDetection: BrowserDetection = new BrowserDetection(null);
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