-
Notifications
You must be signed in to change notification settings - Fork 682
/
DOMImplementation-impl.js
executable file
·169 lines (138 loc) · 4.97 KB
/
DOMImplementation-impl.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
"use strict";
const validateNames = require("../helpers/validate-names");
const DocumentType = require("../generated/DocumentType");
const Document = require("../generated/Document");
const { HTML_NS, SVG_NS } = require("../helpers/namespaces");
class DOMImplementationImpl {
constructor(args, privateData) {
this._ownerDocument = privateData.ownerDocument;
this._features = Object.create(null);
}
hasFeature() {
return true;
}
createDocumentType(qualifiedName, publicId, systemId) {
validateNames.qname(qualifiedName);
return DocumentType.createImpl([], {
ownerDocument: this._ownerDocument,
name: qualifiedName,
publicId,
systemId
});
}
createDocument(namespace, qualifiedName, doctype) {
let contentType = "application/xml";
if (namespace === HTML_NS) {
contentType = "application/xhtml+xml";
} else if (namespace === SVG_NS) {
contentType = "image/svg+xml";
}
const document = Document.createImpl([], {
options: { contentType, parsingMode: "xml", encoding: "UTF-8" }
});
let element = null;
if (qualifiedName !== "") {
element = document.createElementNS(namespace, qualifiedName);
}
if (doctype !== null) {
document.appendChild(doctype);
}
if (element !== null) {
document.appendChild(element);
}
document.origin = this._ownerDocument.origin;
return document;
}
createHTMLDocument(title) {
// Let doc be a new document that is an HTML document.
// Set doc's content type to "text/html".
const document = Document.createImpl([], {
options: { parsingMode: "html", encoding: "UTF-8" }
});
// Create a doctype, with "html" as its name and with its node document set
// to doc. Append the newly created node to doc.
const doctype = DocumentType.createImpl([], {
ownerDocument: this,
name: "html",
publicId: "",
systemId: ""
});
document.appendChild(doctype);
// Create an html element in the HTML namespace, and append it to doc.
const htmlElement = document.createElementNS(HTML_NS, "html");
document.appendChild(htmlElement);
// Create a head element in the HTML namespace, and append it to the html
// element created in the previous step.
const headElement = document.createElement("head");
htmlElement.appendChild(headElement);
// If the title argument is not omitted:
if (title !== undefined) {
// Create a title element in the HTML namespace, and append it to the head
// element created in the previous step.
const titleElement = document.createElement("title");
headElement.appendChild(titleElement);
// Create a Text node, set its data to title (which could be the empty
// string), and append it to the title element created in the previous step.
titleElement.appendChild(document.createTextNode(title));
}
// Create a body element in the HTML namespace, and append it to the html
// element created in the earlier step.
htmlElement.appendChild(document.createElement("body"));
// doc's origin is an alias to the origin of the context object's associated
// document, and doc's effective script origin is an alias to the effective
// script origin of the context object's associated document.
return document;
}
_removeFeature(feature, version) {
feature = feature.toLowerCase();
if (this._features[feature]) {
if (version) {
const versions = this._features[feature];
for (let j = 0; j < versions.length; j++) {
if (versions[j] === version) {
versions.splice(j, 1);
return;
}
}
} else {
delete this._features[feature];
}
}
}
_addFeature(feature, version) {
feature = feature.toLowerCase();
if (version) {
if (!this._features[feature]) {
this._features[feature] = [];
}
if (version instanceof Array) {
Array.prototype.push.apply(this._features[feature], version);
} else {
this._features[feature].push(version);
}
} else {
this._features[feature] = [];
}
}
_hasFeature(feature, version) {
feature = feature ? feature.toLowerCase() : "";
const versions = this._features[feature] || false;
if (!version && versions.length && versions.length > 0) {
return true;
} else if (typeof versions === "string") {
return versions === version;
} else if (versions.indexOf && versions.length > 0) {
for (let i = 0; i < versions.length; i++) {
const found = versions[i] instanceof RegExp ? versions[i].test(version) : versions[i] === version;
if (found) {
return true;
}
}
return false;
}
return false;
}
}
module.exports = {
implementation: DOMImplementationImpl
};