dynatrace-cordova-outsystems-plugin/node_modules/parse5/lib/serializer/index.js

This plugin gives you the ability to use the Dynatrace instrumentation in your hybrid application (Cordova, Ionic, ..). It uses the Mobile Agent, the JavaScript Agent and the Javascript Bridge. The Mobile Agent will give you all device specific values con

'use strict';

const defaultTreeAdapter = require('../tree-adapters/default');
const mergeOptions = require('../utils/merge-options');
const doctype = require('../common/doctype');
const HTML = require('../common/html');

//Aliases
const $ = HTML.TAG_NAMES;
const NS = HTML.NAMESPACES;

//Default serializer options
const DEFAULT_OPTIONS = {
    treeAdapter: defaultTreeAdapter
};

//Escaping regexes
const AMP_REGEX = /&/g;
const NBSP_REGEX = /\u00a0/g;
const DOUBLE_QUOTE_REGEX = /"/g;
const LT_REGEX = /</g;
const GT_REGEX = />/g;

//Serializer
class Serializer {
    constructor(node, options) {
        this.options = mergeOptions(DEFAULT_OPTIONS, options);
        this.treeAdapter = this.options.treeAdapter;

        this.html = '';
        this.startNode = node;
    }

    //API
    serialize() {
        this._serializeChildNodes(this.startNode);

        return this.html;
    }

    //Internals
    _serializeChildNodes(parentNode) {
        const childNodes = this.treeAdapter.getChildNodes(parentNode);

        if (childNodes) {
            for (let i = 0, cnLength = childNodes.length; i < cnLength; i++) {
                const currentNode = childNodes[i];

                if (this.treeAdapter.isElementNode(currentNode)) {
                    this._serializeElement(currentNode);
                } else if (this.treeAdapter.isTextNode(currentNode)) {
                    this._serializeTextNode(currentNode);
                } else if (this.treeAdapter.isCommentNode(currentNode)) {
                    this._serializeCommentNode(currentNode);
                } else if (this.treeAdapter.isDocumentTypeNode(currentNode)) {
                    this._serializeDocumentTypeNode(currentNode);
                }
            }
        }
    }

    _serializeElement(node) {
        const tn = this.treeAdapter.getTagName(node);
        const ns = this.treeAdapter.getNamespaceURI(node);

        this.html += '<' + tn;
        this._serializeAttributes(node);
        this.html += '>';

        if (
            tn !== $.AREA &&
            tn !== $.BASE &&
            tn !== $.BASEFONT &&
            tn !== $.BGSOUND &&
            tn !== $.BR &&
            tn !== $.COL &&
            tn !== $.EMBED &&
            tn !== $.FRAME &&
            tn !== $.HR &&
            tn !== $.IMG &&
            tn !== $.INPUT &&
            tn !== $.KEYGEN &&
            tn !== $.LINK &&
            tn !== $.META &&
            tn !== $.PARAM &&
            tn !== $.SOURCE &&
            tn !== $.TRACK &&
            tn !== $.WBR
        ) {
            const childNodesHolder =
                tn === $.TEMPLATE && ns === NS.HTML ? this.treeAdapter.getTemplateContent(node) : node;

            this._serializeChildNodes(childNodesHolder);
            this.html += '</' + tn + '>';
        }
    }

    _serializeAttributes(node) {
        const attrs = this.treeAdapter.getAttrList(node);

        for (let i = 0, attrsLength = attrs.length; i < attrsLength; i++) {
            const attr = attrs[i];
            const value = Serializer.escapeString(attr.value, true);

            this.html += ' ';

            if (!attr.namespace) {
                this.html += attr.name;
            } else if (attr.namespace === NS.XML) {
                this.html += 'xml:' + attr.name;
            } else if (attr.namespace === NS.XMLNS) {
                if (attr.name !== 'xmlns') {
                    this.html += 'xmlns:';
                }

                this.html += attr.name;
            } else if (attr.namespace === NS.XLINK) {
                this.html += 'xlink:' + attr.name;
            } else {
                this.html += attr.namespace + ':' + attr.name;
            }

            this.html += '="' + value + '"';
        }
    }

    _serializeTextNode(node) {
        const content = this.treeAdapter.getTextNodeContent(node);
        const parent = this.treeAdapter.getParentNode(node);
        let parentTn = void 0;

        if (parent && this.treeAdapter.isElementNode(parent)) {
            parentTn = this.treeAdapter.getTagName(parent);
        }

        if (
            parentTn === $.STYLE ||
            parentTn === $.SCRIPT ||
            parentTn === $.XMP ||
            parentTn === $.IFRAME ||
            parentTn === $.NOEMBED ||
            parentTn === $.NOFRAMES ||
            parentTn === $.PLAINTEXT ||
            parentTn === $.NOSCRIPT
        ) {
            this.html += content;
        } else {
            this.html += Serializer.escapeString(content, false);
        }
    }

    _serializeCommentNode(node) {
        this.html += '<!--' + this.treeAdapter.getCommentNodeContent(node) + '-->';
    }

    _serializeDocumentTypeNode(node) {
        const name = this.treeAdapter.getDocumentTypeNodeName(node);

        this.html += '<' + doctype.serializeContent(name, null, null) + '>';
    }
}

// NOTE: used in tests and by rewriting stream
Serializer.escapeString = function(str, attrMode) {
    str = str.replace(AMP_REGEX, '&amp;').replace(NBSP_REGEX, '&nbsp;');

    if (attrMode) {
        str = str.replace(DOUBLE_QUOTE_REGEX, '&quot;');
    } else {
        str = str.replace(LT_REGEX, '&lt;').replace(GT_REGEX, '&gt;');
    }

    return str;
};

module.exports = Serializer;