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"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __exportStar = (this && this.__exportStar) || function(m, exports) {
for (var p in m) if (p !== "default" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.DomHandler = void 0;
var domelementtype_1 = require("domelementtype");
var node_1 = require("./node");
__exportStar(require("./node"), exports);
var reWhitespace = /\s+/g;
// Default options
var defaultOpts = {
normalizeWhitespace: false,
withStartIndices: false,
withEndIndices: false,
xmlMode: false,
};
var DomHandler = /** @class */ (function () {
/**
* @param callback Called once parsing has completed.
* @param options Settings for the handler.
* @param elementCB Callback whenever a tag is closed.
*/
function DomHandler(callback, options, elementCB) {
/** The elements of the DOM */
this.dom = [];
/** The root element for the DOM */
this.root = new node_1.Document(this.dom);
/** Indicated whether parsing has been completed. */
this.done = false;
/** Stack of open tags. */
this.tagStack = [this.root];
/** A data node that is still being written to. */
this.lastNode = null;
/** Reference to the parser instance. Used for location information. */
this.parser = null;
// Make it possible to skip arguments, for backwards-compatibility
if (typeof options === "function") {
elementCB = options;
options = defaultOpts;
}
if (typeof callback === "object") {
options = callback;
callback = undefined;
}
this.callback = callback !== null && callback !== void 0 ? callback : null;
this.options = options !== null && options !== void 0 ? options : defaultOpts;
this.elementCB = elementCB !== null && elementCB !== void 0 ? elementCB : null;
}
DomHandler.prototype.onparserinit = function (parser) {
this.parser = parser;
};
// Resets the handler back to starting state
DomHandler.prototype.onreset = function () {
this.dom = [];
this.root = new node_1.Document(this.dom);
this.done = false;
this.tagStack = [this.root];
this.lastNode = null;
this.parser = null;
};
// Signals the handler that parsing is done
DomHandler.prototype.onend = function () {
if (this.done)
return;
this.done = true;
this.parser = null;
this.handleCallback(null);
};
DomHandler.prototype.onerror = function (error) {
this.handleCallback(error);
};
DomHandler.prototype.onclosetag = function () {
this.lastNode = null;
var elem = this.tagStack.pop();
if (this.options.withEndIndices) {
elem.endIndex = this.parser.endIndex;
}
if (this.elementCB)
this.elementCB(elem);
};
DomHandler.prototype.onopentag = function (name, attribs) {
var type = this.options.xmlMode ? domelementtype_1.ElementType.Tag : undefined;
var element = new node_1.Element(name, attribs, undefined, type);
this.addNode(element);
this.tagStack.push(element);
};
DomHandler.prototype.ontext = function (data) {
var normalizeWhitespace = this.options.normalizeWhitespace;
var lastNode = this.lastNode;
if (lastNode && lastNode.type === domelementtype_1.ElementType.Text) {
if (normalizeWhitespace) {
lastNode.data = (lastNode.data + data).replace(reWhitespace, " ");
}
else {
lastNode.data += data;
}
if (this.options.withEndIndices) {
lastNode.endIndex = this.parser.endIndex;
}
}
else {
if (normalizeWhitespace) {
data = data.replace(reWhitespace, " ");
}
var node = new node_1.Text(data);
this.addNode(node);
this.lastNode = node;
}
};
DomHandler.prototype.oncomment = function (data) {
if (this.lastNode && this.lastNode.type === domelementtype_1.ElementType.Comment) {
this.lastNode.data += data;
return;
}
var node = new node_1.Comment(data);
this.addNode(node);
this.lastNode = node;
};
DomHandler.prototype.oncommentend = function () {
this.lastNode = null;
};
DomHandler.prototype.oncdatastart = function () {
var text = new node_1.Text("");
var node = new node_1.NodeWithChildren(domelementtype_1.ElementType.CDATA, [text]);
this.addNode(node);
text.parent = node;
this.lastNode = text;
};
DomHandler.prototype.oncdataend = function () {
this.lastNode = null;
};
DomHandler.prototype.onprocessinginstruction = function (name, data) {
var node = new node_1.ProcessingInstruction(name, data);
this.addNode(node);
};
DomHandler.prototype.handleCallback = function (error) {
if (typeof this.callback === "function") {
this.callback(error, this.dom);
}
else if (error) {
throw error;
}
};
DomHandler.prototype.addNode = function (node) {
var parent = this.tagStack[this.tagStack.length - 1];
var previousSibling = parent.children[parent.children.length - 1];
if (this.options.withStartIndices) {
node.startIndex = this.parser.startIndex;
}
if (this.options.withEndIndices) {
node.endIndex = this.parser.endIndex;
}
parent.children.push(node);
if (previousSibling) {
node.prev = previousSibling;
previousSibling.next = node;
}
node.parent = parent;
this.lastNode = null;
};
return DomHandler;
}());
exports.DomHandler = DomHandler;
exports.default = DomHandler;