funcunit/site/node_modules/can-simple-dom/lib/simple-dom/document.js

<!-- @hide title

import Node from './document/node';
import Element from './document/element';
import Text from './document/text';
import Comment from './document/comment';
import DocumentFragment from './document/document-fragment';
import AnchorElement from './document/anchor-element';



function Document() {
  this.nodeConstructor(9, '#document', null, this);
  this.documentElement = new Element('html', this);
  this.body = new Element('body', this);
  this.documentElement.appendChild(this.body);
  this.appendChild(this.documentElement);
  var self = this;
  this.implementation = {
    createHTMLDocument: function(content){
      var document = new Document();
      var frag =  self.__parser.parse(content);

      var body = Element.prototype.getElementsByTagName.call(frag,"body")[0];
      var head = Element.prototype.getElementsByTagName.call(frag,"head")[0];
      
      if(!body && !head) {
        document.body.appendChild(frag);
      } else {
        if(body) {
          document.documentElement.replaceChild(body, document.body);
        }
        if(head) {
          document.documentElement.replaceChild(head, document.head);
        }
        document.documentElement.appendChild(frag);
      }
      document.__addSerializerAndParser(self.__serializer, self.__parser);
      return document;

    }
  };
}

Document.prototype = Object.create(Node.prototype);
Document.prototype.constructor = Document;
Document.prototype.nodeConstructor = Node;

const specialElements = {
  "a": AnchorElement
};

Document.prototype.createElement = function(tagName) {
  var Special = specialElements[tagName.toLowerCase()];
  if(Special) {
    return new Special(tagName, this);
  }

  return new Element(tagName, this);
};

Document.prototype.createTextNode = function(text) {
  return new Text(text, this);
};

Document.prototype.createComment = function(text) {
  return new Comment(text, this);
};

Document.prototype.createDocumentFragment = function() {
  return new DocumentFragment(this);
};

Document.prototype.getElementsByTagName = function(name){
	name = name.toUpperCase();
	var elements = [];
	var cur = this.firstChild;
	while(cur) {
		if(cur.nodeType === Node.ELEMENT_NODE) {
			if(cur.nodeName === name || name === "*") {
				elements.push(cur);
			}
			elements.push.apply(elements, cur.getElementsByTagName(name));
		}
		cur = cur.nextSibling;
	}
	return elements;
};
Document.prototype.getElementById = function(id){
  return Element.prototype.getElementById.apply(this.documentElement, arguments);
};

Document.prototype.__addSerializerAndParser = function(serializer, parser){
  this.__parser = parser;
  this.__serializer = serializer;
}

if(Object.defineProperty) {
  Object.defineProperty(Document.prototype, "currentScript", {
    get: function(){
      var scripts = this.getElementsByTagName("script");
      var first = scripts[scripts.length - 1];
      if(!first) {
        first = this.createElement("script");
      }
      return first;
    }
  });
}

export default Document;