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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var node_1 = require("./node");
exports.Node = node_1.Node;
exports.Element = node_1.Element;
exports.DataNode = node_1.DataNode;
exports.NodeWithChildren = node_1.NodeWithChildren;
var reWhitespace = /\s+/g;
// Default options
var defaultOpts = {
normalizeWhitespace: false,
withStartIndices: false,
withEndIndices: false
};
var DomHandler = /** @class */ (function () {
/**
* Initiate a new DomHandler.
*
* @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 constructed DOM */
this.dom = [];
/** Indicated whether parsing has been completed. */
this._done = false;
/** Stack of open tags. */
this._tagStack = [];
/** 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;
this._options = options || defaultOpts;
this._elementCB = elementCB || null;
}
DomHandler.prototype.onparserinit = function (parser) {
this._parser = parser;
};
// Resets the handler back to starting state
DomHandler.prototype.onreset = function () {
this.dom = [];
this._done = false;
this._tagStack = [];
this._lastNode = null;
this._parser = 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;
// If(this._tagStack.pop().name !== name) this.handleCallback(Error("Tagname didn't match!"));
var elem = this._tagStack.pop();
if (!elem || !this._parser) {
return;
}
if (this._options.withEndIndices) {
elem.endIndex = this._parser.endIndex;
}
if (this._elementCB)
this._elementCB(elem);
};
DomHandler.prototype.onopentag = function (name, attribs) {
var element = new node_1.Element(name, attribs);
this.addNode(element);
this._tagStack.push(element);
};
DomHandler.prototype.ontext = function (data) {
var normalize = this._options.normalizeWhitespace;
var _lastNode = this._lastNode;
if (_lastNode && _lastNode.type === "text" /* Text */) {
if (normalize) {
_lastNode.data = (_lastNode.data + data).replace(reWhitespace, " ");
}
else {
_lastNode.data += data;
}
}
else {
if (normalize) {
data = data.replace(reWhitespace, " ");
}
var node = new node_1.DataNode("text" /* Text */, data);
this.addNode(node);
this._lastNode = node;
}
};
DomHandler.prototype.oncomment = function (data) {
if (this._lastNode && this._lastNode.type === "comment" /* Comment */) {
this._lastNode.data += data;
return;
}
var node = new node_1.DataNode("comment" /* Comment */, data);
this.addNode(node);
this._lastNode = node;
};
DomHandler.prototype.oncommentend = function () {
this._lastNode = null;
};
DomHandler.prototype.oncdatastart = function () {
var text = new node_1.DataNode("text" /* Text */, "");
var node = new node_1.NodeWithChildren("cdata" /* 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 siblings = parent ? parent.children : this.dom;
var previousSibling = siblings[siblings.length - 1];
if (this._parser) {
if (this._options.withStartIndices) {
node.startIndex = this._parser.startIndex;
}
if (this._options.withEndIndices) {
node.endIndex = this._parser.endIndex;
}
}
siblings.push(node);
if (previousSibling) {
node.prev = previousSibling;
previousSibling.next = node;
}
if (parent) {
node.parent = parent;
}
this._lastNode = null;
};
DomHandler.prototype.addDataNode = function (node) {
this.addNode(node);
this._lastNode = node;
};
return DomHandler;
}());
exports.DomHandler = DomHandler;
exports.default = DomHandler;