@angular/platform-browser
Version:
Angular - library for using Angular in a web browser
125 lines • 16.1 kB
JavaScript
/**
* @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 { ɵgetDOM as getDOM } from '@angular/common';
import { NgZone } from '@angular/core';
export function dispatchEvent(element, eventType) {
const evt = getDOM().getDefaultDocument().createEvent('Event');
evt.initEvent(eventType, true, true);
getDOM().dispatchEvent(element, evt);
return evt;
}
export function createMouseEvent(eventType) {
const evt = getDOM().getDefaultDocument().createEvent('MouseEvent');
evt.initEvent(eventType, true, true);
return evt;
}
export function el(html) {
return getContent(createTemplate(html)).firstChild;
}
function getAttributeMap(element) {
const res = new Map();
const elAttrs = element.attributes;
for (let i = 0; i < elAttrs.length; i++) {
const attrib = elAttrs.item(i);
res.set(attrib.name, attrib.value);
}
return res;
}
const _selfClosingTags = ['br', 'hr', 'input'];
export function stringifyElement(el) {
let result = '';
if (getDOM().isElementNode(el)) {
const tagName = el.tagName.toLowerCase();
// Opening tag
result += `<${tagName}`;
// Attributes in an ordered way
const attributeMap = getAttributeMap(el);
const sortedKeys = Array.from(attributeMap.keys()).sort();
for (const key of sortedKeys) {
const lowerCaseKey = key.toLowerCase();
let attValue = attributeMap.get(key);
if (typeof attValue !== 'string') {
result += ` ${lowerCaseKey}`;
}
else {
// Browsers order style rules differently. Order them alphabetically for consistency.
if (lowerCaseKey === 'style') {
attValue = attValue.split(/; ?/).filter(s => !!s).sort().map(s => `${s};`).join(' ');
}
result += ` ${lowerCaseKey}="${attValue}"`;
}
}
result += '>';
// Children
const childrenRoot = templateAwareRoot(el);
const children = childrenRoot ? childrenRoot.childNodes : [];
for (let j = 0; j < children.length; j++) {
result += stringifyElement(children[j]);
}
// Closing tag
if (_selfClosingTags.indexOf(tagName) == -1) {
result += `</${tagName}>`;
}
}
else if (isCommentNode(el)) {
result += `<!--${el.nodeValue}-->`;
}
else {
result += el.textContent;
}
return result;
}
export function createNgZone() {
return new NgZone({ enableLongStackTrace: true, shouldCoalesceEventChangeDetection: false });
}
export function isCommentNode(node) {
return node.nodeType === Node.COMMENT_NODE;
}
export function isTextNode(node) {
return node.nodeType === Node.TEXT_NODE;
}
export function getContent(node) {
if ('content' in node) {
return node.content;
}
else {
return node;
}
}
export function templateAwareRoot(el) {
return getDOM().isElementNode(el) && el.nodeName === 'TEMPLATE' ? getContent(el) : el;
}
export function setCookie(name, value) {
// document.cookie is magical, assigning into it assigns/overrides one cookie value, but does
// not clear other cookies.
document.cookie = encodeURIComponent(name) + '=' + encodeURIComponent(value);
}
export function hasStyle(element, styleName, styleValue) {
const value = element.style[styleName] || '';
return styleValue ? value == styleValue : value.length > 0;
}
export function hasClass(element, className) {
return element.classList.contains(className);
}
export function sortedClassList(element) {
return Array.prototype.slice.call(element.classList, 0).sort();
}
export function createTemplate(html) {
const t = getDOM().getDefaultDocument().createElement('template');
t.innerHTML = html;
return t;
}
export function childNodesAsList(el) {
const childNodes = el.childNodes;
const res = [];
for (let i = 0; i < childNodes.length; i++) {
res[i] = childNodes[i];
}
return res;
}
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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {ɵgetDOM as getDOM} from '@angular/common';\nimport {NgZone} from '@angular/core';\n\nexport function dispatchEvent(element: any, eventType: any): Event {\n  const evt: Event = getDOM().getDefaultDocument().createEvent('Event');\n  evt.initEvent(eventType, true, true);\n  getDOM().dispatchEvent(element, evt);\n  return evt;\n}\n\nexport function createMouseEvent(eventType: string): MouseEvent {\n  const evt: MouseEvent = getDOM().getDefaultDocument().createEvent('MouseEvent');\n  evt.initEvent(eventType, true, true);\n  return evt;\n}\n\nexport function el(html: string): HTMLElement {\n  return <HTMLElement>getContent(createTemplate(html)).firstChild;\n}\n\nfunction getAttributeMap(element: any): Map<string, string> {\n  const res = new Map<string, string>();\n  const elAttrs = element.attributes;\n  for (let i = 0; i < elAttrs.length; i++) {\n    const attrib = elAttrs.item(i);\n    res.set(attrib.name, attrib.value);\n  }\n  return res;\n}\n\nconst _selfClosingTags = ['br', 'hr', 'input'];\nexport function stringifyElement(el: Element): string {\n  let result = '';\n  if (getDOM().isElementNode(el)) {\n    const tagName = el.tagName.toLowerCase();\n\n    // Opening tag\n    result += `<${tagName}`;\n\n    // Attributes in an ordered way\n    const attributeMap = getAttributeMap(el);\n    const sortedKeys = Array.from(attributeMap.keys()).sort();\n    for (const key of sortedKeys) {\n      const lowerCaseKey = key.toLowerCase();\n      let attValue = attributeMap.get(key);\n\n      if (typeof attValue !== 'string') {\n        result += ` ${lowerCaseKey}`;\n      } else {\n        // Browsers order style rules differently. Order them alphabetically for consistency.\n        if (lowerCaseKey === 'style') {\n          attValue = attValue.split(/; ?/).filter(s => !!s).sort().map(s => `${s};`).join(' ');\n        }\n\n        result += ` ${lowerCaseKey}=\"${attValue}\"`;\n      }\n    }\n    result += '>';\n\n    // Children\n    const childrenRoot = templateAwareRoot(el);\n    const children = childrenRoot ? childrenRoot.childNodes : [];\n    for (let j = 0; j < children.length; j++) {\n      result += stringifyElement(children[j]);\n    }\n\n    // Closing tag\n    if (_selfClosingTags.indexOf(tagName) == -1) {\n      result += `</${tagName}>`;\n    }\n  } else if (isCommentNode(el)) {\n    result += `<!--${el.nodeValue}-->`;\n  } else {\n    result += el.textContent;\n  }\n\n  return result;\n}\n\nexport function createNgZone(): NgZone {\n  return new NgZone({enableLongStackTrace: true, shouldCoalesceEventChangeDetection: false});\n}\n\nexport function isCommentNode(node: Node): boolean {\n  return node.nodeType === Node.COMMENT_NODE;\n}\n\nexport function isTextNode(node: Node): boolean {\n  return node.nodeType === Node.TEXT_NODE;\n}\n\nexport function getContent(node: Node): Node {\n  if ('content' in node) {\n    return (<any>node).content;\n  } else {\n    return node;\n  }\n}\n\nexport function templateAwareRoot(el: Node): any {\n  return getDOM().isElementNode(el) && el.nodeName === 'TEMPLATE' ? getContent(el) : el;\n}\n\nexport function setCookie(name: string, value: string) {\n  // document.cookie is magical, assigning into it assigns/overrides one cookie value, but does\n  // not clear other cookies.\n  document.cookie = encodeURIComponent(name) + '=' + encodeURIComponent(value);\n}\n\nexport function hasStyle(element: any, styleName: string, styleValue?: string|null): boolean {\n  const value = element.style[styleName] || '';\n  return styleValue ? value == styleValue : value.length > 0;\n}\n\nexport function hasClass(element: any, className: string): boolean {\n  return element.classList.contains(className);\n}\n\nexport function sortedClassList(element: any): any[] {\n  return Array.prototype.slice.call(element.classList, 0).sort();\n}\n\nexport function createTemplate(html: any): HTMLElement {\n  const t = getDOM().getDefaultDocument().createElement('template');\n  t.innerHTML = html;\n  return t;\n}\n\nexport function childNodesAsList(el: Node): any[] {\n  const childNodes = el.childNodes;\n  const res = [];\n  for (let i = 0; i < childNodes.length; i++) {\n    res[i] = childNodes[i];\n  }\n  return res;\n}\n"]}