angular-cn/modules/@angular/platform-browser/testing/browser_util.ts

121 lines
3.9 KiB
TypeScript

import {ListWrapper} from '../src/facade/collection';
import {getDOM} from '../src/dom/dom_adapter';
import {isPresent, isString, RegExpWrapper, StringWrapper, RegExp} from '../src/facade/lang';
export class BrowserDetection {
private _overrideUa: string;
private get _ua(): string {
if (isPresent(this._overrideUa)) {
return this._overrideUa;
} else {
return isPresent(getDOM()) ? getDOM().getUserAgent() : '';
}
}
static setup() { browserDetection = new BrowserDetection(null); }
constructor(ua: string) { this._overrideUa = ua; }
get isFirefox(): boolean { return this._ua.indexOf('Firefox') > -1; }
get isAndroid(): boolean {
return this._ua.indexOf('Mozilla/5.0') > -1 && this._ua.indexOf('Android') > -1 &&
this._ua.indexOf('AppleWebKit') > -1 && this._ua.indexOf('Chrome') == -1;
}
get isEdge(): boolean { return this._ua.indexOf('Edge') > -1; }
get isIE(): boolean { return this._ua.indexOf('Trident') > -1; }
get isWebkit(): boolean {
return this._ua.indexOf('AppleWebKit') > -1 && this._ua.indexOf('Edge') == -1;
}
get isIOS7(): boolean {
return this._ua.indexOf('iPhone OS 7') > -1 || this._ua.indexOf('iPad OS 7') > -1;
}
get isSlow(): boolean { return this.isAndroid || this.isIE || this.isIOS7; }
// The Intl API is only properly supported in recent Chrome and Opera.
// Note: Edge is disguised as Chrome 42, so checking the "Edge" part is needed,
// see https://msdn.microsoft.com/en-us/library/hh869301(v=vs.85).aspx
get supportsIntlApi(): boolean {
return this._ua.indexOf('Chrome/4') > -1 && this._ua.indexOf('Edge') == -1;
}
get isChromeDesktop(): boolean {
return this._ua.indexOf('Chrome') > -1 && this._ua.indexOf('Mobile Safari') == -1 &&
this._ua.indexOf('Edge') == -1;
}
}
BrowserDetection.setup();
export function dispatchEvent(element, eventType): void {
getDOM().dispatchEvent(element, getDOM().createEvent(eventType));
}
export function el(html: string): HTMLElement {
return <HTMLElement>getDOM().firstChild(getDOM().content(getDOM().createTemplate(html)));
}
export function normalizeCSS(css: string): string {
css = StringWrapper.replaceAll(css, /\s+/g, ' ');
css = StringWrapper.replaceAll(css, /:\s/g, ':');
css = StringWrapper.replaceAll(css, /'/g, '"');
css = StringWrapper.replaceAll(css, / }/g, '}');
css = StringWrapper.replaceAllMapped(css, /url\((\"|\s)(.+)(\"|\s)\)(\s*)/g,
(match) => `url("${match[2]}")`);
css = StringWrapper.replaceAllMapped(css, /\[(.+)=([^"\]]+)\]/g,
(match) => `[${match[1]}="${match[2]}"]`);
return css;
}
var _singleTagWhitelist = ['br', 'hr', 'input'];
export function stringifyElement(el): string {
var result = '';
if (getDOM().isElementNode(el)) {
var tagName = getDOM().tagName(el).toLowerCase();
// Opening tag
result += `<${tagName}`;
// Attributes in an ordered way
var attributeMap = getDOM().attributeMap(el);
var keys = [];
attributeMap.forEach((v, k) => keys.push(k));
ListWrapper.sort(keys);
for (let i = 0; i < keys.length; i++) {
var key = keys[i];
var attValue = attributeMap.get(key);
if (!isString(attValue)) {
result += ` ${key}`;
} else {
result += ` ${key}="${attValue}"`;
}
}
result += '>';
// Children
var childrenRoot = getDOM().templateAwareRoot(el);
var children = isPresent(childrenRoot) ? getDOM().childNodes(childrenRoot) : [];
for (let j = 0; j < children.length; j++) {
result += stringifyElement(children[j]);
}
// Closing tag
if (!ListWrapper.contains(_singleTagWhitelist, tagName)) {
result += `</${tagName}>`;
}
} else if (getDOM().isCommentNode(el)) {
result += `<!--${getDOM().nodeValue(el)}-->`;
} else {
result += getDOM().getText(el);
}
return result;
}
export var browserDetection: BrowserDetection = new BrowserDetection(null);