devsite/node_modules/domhandler/lib/node.js

"use strict";
var __extends = (this && this.__extends) || (function () {
    var extendStatics = function (d, b) {
        extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
        return extendStatics(d, b);
    };
    return function (d, b) {
        if (typeof b !== "function" && b !== null)
            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
var __assign = (this && this.__assign) || function () {
    __assign = Object.assign || function(t) {
        for (var s, i = 1, n = arguments.length; i < n; i++) {
            s = arguments[i];
            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
                t[p] = s[p];
        }
        return t;
    };
    return __assign.apply(this, arguments);
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.cloneNode = exports.hasChildren = exports.isDocument = exports.isDirective = exports.isComment = exports.isText = exports.isCDATA = exports.isTag = exports.Element = exports.Document = exports.NodeWithChildren = exports.ProcessingInstruction = exports.Comment = exports.Text = exports.DataNode = exports.Node = void 0;
var domelementtype_1 = require("domelementtype");
var nodeTypes = new Map([
    [domelementtype_1.ElementType.Tag, 1],
    [domelementtype_1.ElementType.Script, 1],
    [domelementtype_1.ElementType.Style, 1],
    [domelementtype_1.ElementType.Directive, 1],
    [domelementtype_1.ElementType.Text, 3],
    [domelementtype_1.ElementType.CDATA, 4],
    [domelementtype_1.ElementType.Comment, 8],
    [domelementtype_1.ElementType.Root, 9],
]);
/**
 * This object will be used as the prototype for Nodes when creating a
 * DOM-Level-1-compliant structure.
 */
var Node = /** @class */ (function () {
    /**
     *
     * @param type The type of the node.
     */
    function Node(type) {
        this.type = type;
        /** Parent of the node */
        this.parent = null;
        /** Previous sibling */
        this.prev = null;
        /** Next sibling */
        this.next = null;
        /** The start index of the node. Requires `withStartIndices` on the handler to be `true. */
        this.startIndex = null;
        /** The end index of the node. Requires `withEndIndices` on the handler to be `true. */
        this.endIndex = null;
    }
    Object.defineProperty(Node.prototype, "nodeType", {
        // Read-only aliases
        /**
         * [DOM spec](https://dom.spec.whatwg.org/#dom-node-nodetype)-compatible
         * node {@link type}.
         */
        get: function () {
            var _a;
            return (_a = nodeTypes.get(this.type)) !== null && _a !== void 0 ? _a : 1;
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(Node.prototype, "parentNode", {
        // Read-write aliases for properties
        /**
         * Same as {@link parent}.
         * [DOM spec](https://dom.spec.whatwg.org)-compatible alias.
         */
        get: function () {
            return this.parent;
        },
        set: function (parent) {
            this.parent = parent;
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(Node.prototype, "previousSibling", {
        /**
         * Same as {@link prev}.
         * [DOM spec](https://dom.spec.whatwg.org)-compatible alias.
         */
        get: function () {
            return this.prev;
        },
        set: function (prev) {
            this.prev = prev;
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(Node.prototype, "nextSibling", {
        /**
         * Same as {@link next}.
         * [DOM spec](https://dom.spec.whatwg.org)-compatible alias.
         */
        get: function () {
            return this.next;
        },
        set: function (next) {
            this.next = next;
        },
        enumerable: false,
        configurable: true
    });
    /**
     * Clone this node, and optionally its children.
     *
     * @param recursive Clone child nodes as well.
     * @returns A clone of the node.
     */
    Node.prototype.cloneNode = function (recursive) {
        if (recursive === void 0) { recursive = false; }
        return cloneNode(this, recursive);
    };
    return Node;
}());
exports.Node = Node;
/**
 * A node that contains some data.
 */
var DataNode = /** @class */ (function (_super) {
    __extends(DataNode, _super);
    /**
     * @param type The type of the node
     * @param data The content of the data node
     */
    function DataNode(type, data) {
        var _this = _super.call(this, type) || this;
        _this.data = data;
        return _this;
    }
    Object.defineProperty(DataNode.prototype, "nodeValue", {
        /**
         * Same as {@link data}.
         * [DOM spec](https://dom.spec.whatwg.org)-compatible alias.
         */
        get: function () {
            return this.data;
        },
        set: function (data) {
            this.data = data;
        },
        enumerable: false,
        configurable: true
    });
    return DataNode;
}(Node));
exports.DataNode = DataNode;
/**
 * Text within the document.
 */
var Text = /** @class */ (function (_super) {
    __extends(Text, _super);
    function Text(data) {
        return _super.call(this, domelementtype_1.ElementType.Text, data) || this;
    }
    return Text;
}(DataNode));
exports.Text = Text;
/**
 * Comments within the document.
 */
var Comment = /** @class */ (function (_super) {
    __extends(Comment, _super);
    function Comment(data) {
        return _super.call(this, domelementtype_1.ElementType.Comment, data) || this;
    }
    return Comment;
}(DataNode));
exports.Comment = Comment;
/**
 * Processing instructions, including doc types.
 */
var ProcessingInstruction = /** @class */ (function (_super) {
    __extends(ProcessingInstruction, _super);
    function ProcessingInstruction(name, data) {
        var _this = _super.call(this, domelementtype_1.ElementType.Directive, data) || this;
        _this.name = name;
        return _this;
    }
    return ProcessingInstruction;
}(DataNode));
exports.ProcessingInstruction = ProcessingInstruction;
/**
 * A `Node` that can have children.
 */
var NodeWithChildren = /** @class */ (function (_super) {
    __extends(NodeWithChildren, _super);
    /**
     * @param type Type of the node.
     * @param children Children of the node. Only certain node types can have children.
     */
    function NodeWithChildren(type, children) {
        var _this = _super.call(this, type) || this;
        _this.children = children;
        return _this;
    }
    Object.defineProperty(NodeWithChildren.prototype, "firstChild", {
        // Aliases
        /** First child of the node. */
        get: function () {
            var _a;
            return (_a = this.children[0]) !== null && _a !== void 0 ? _a : null;
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(NodeWithChildren.prototype, "lastChild", {
        /** Last child of the node. */
        get: function () {
            return this.children.length > 0
                ? this.children[this.children.length - 1]
                : null;
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(NodeWithChildren.prototype, "childNodes", {
        /**
         * Same as {@link children}.
         * [DOM spec](https://dom.spec.whatwg.org)-compatible alias.
         */
        get: function () {
            return this.children;
        },
        set: function (children) {
            this.children = children;
        },
        enumerable: false,
        configurable: true
    });
    return NodeWithChildren;
}(Node));
exports.NodeWithChildren = NodeWithChildren;
/**
 * The root node of the document.
 */
var Document = /** @class */ (function (_super) {
    __extends(Document, _super);
    function Document(children) {
        return _super.call(this, domelementtype_1.ElementType.Root, children) || this;
    }
    return Document;
}(NodeWithChildren));
exports.Document = Document;
/**
 * An element within the DOM.
 */
var Element = /** @class */ (function (_super) {
    __extends(Element, _super);
    /**
     * @param name Name of the tag, eg. `div`, `span`.
     * @param attribs Object mapping attribute names to attribute values.
     * @param children Children of the node.
     */
    function Element(name, attribs, children, type) {
        if (children === void 0) { children = []; }
        if (type === void 0) { type = name === "script"
            ? domelementtype_1.ElementType.Script
            : name === "style"
                ? domelementtype_1.ElementType.Style
                : domelementtype_1.ElementType.Tag; }
        var _this = _super.call(this, type, children) || this;
        _this.name = name;
        _this.attribs = attribs;
        return _this;
    }
    Object.defineProperty(Element.prototype, "tagName", {
        // DOM Level 1 aliases
        /**
         * Same as {@link name}.
         * [DOM spec](https://dom.spec.whatwg.org)-compatible alias.
         */
        get: function () {
            return this.name;
        },
        set: function (name) {
            this.name = name;
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(Element.prototype, "attributes", {
        get: function () {
            var _this = this;
            return Object.keys(this.attribs).map(function (name) {
                var _a, _b;
                return ({
                    name: name,
                    value: _this.attribs[name],
                    namespace: (_a = _this["x-attribsNamespace"]) === null || _a === void 0 ? void 0 : _a[name],
                    prefix: (_b = _this["x-attribsPrefix"]) === null || _b === void 0 ? void 0 : _b[name],
                });
            });
        },
        enumerable: false,
        configurable: true
    });
    return Element;
}(NodeWithChildren));
exports.Element = Element;
/**
 * @param node Node to check.
 * @returns `true` if the node is a `Element`, `false` otherwise.
 */
function isTag(node) {
    return (0, domelementtype_1.isTag)(node);
}
exports.isTag = isTag;
/**
 * @param node Node to check.
 * @returns `true` if the node has the type `CDATA`, `false` otherwise.
 */
function isCDATA(node) {
    return node.type === domelementtype_1.ElementType.CDATA;
}
exports.isCDATA = isCDATA;
/**
 * @param node Node to check.
 * @returns `true` if the node has the type `Text`, `false` otherwise.
 */
function isText(node) {
    return node.type === domelementtype_1.ElementType.Text;
}
exports.isText = isText;
/**
 * @param node Node to check.
 * @returns `true` if the node has the type `Comment`, `false` otherwise.
 */
function isComment(node) {
    return node.type === domelementtype_1.ElementType.Comment;
}
exports.isComment = isComment;
/**
 * @param node Node to check.
 * @returns `true` if the node has the type `ProcessingInstruction`, `false` otherwise.
 */
function isDirective(node) {
    return node.type === domelementtype_1.ElementType.Directive;
}
exports.isDirective = isDirective;
/**
 * @param node Node to check.
 * @returns `true` if the node has the type `ProcessingInstruction`, `false` otherwise.
 */
function isDocument(node) {
    return node.type === domelementtype_1.ElementType.Root;
}
exports.isDocument = isDocument;
/**
 * @param node Node to check.
 * @returns `true` if the node is a `NodeWithChildren` (has children), `false` otherwise.
 */
function hasChildren(node) {
    return Object.prototype.hasOwnProperty.call(node, "children");
}
exports.hasChildren = hasChildren;
/**
 * Clone a node, and optionally its children.
 *
 * @param recursive Clone child nodes as well.
 * @returns A clone of the node.
 */
function cloneNode(node, recursive) {
    if (recursive === void 0) { recursive = false; }
    var result;
    if (isText(node)) {
        result = new Text(node.data);
    }
    else if (isComment(node)) {
        result = new Comment(node.data);
    }
    else if (isTag(node)) {
        var children = recursive ? cloneChildren(node.children) : [];
        var clone_1 = new Element(node.name, __assign({}, node.attribs), children);
        children.forEach(function (child) { return (child.parent = clone_1); });
        if (node.namespace != null) {
            clone_1.namespace = node.namespace;
        }
        if (node["x-attribsNamespace"]) {
            clone_1["x-attribsNamespace"] = __assign({}, node["x-attribsNamespace"]);
        }
        if (node["x-attribsPrefix"]) {
            clone_1["x-attribsPrefix"] = __assign({}, node["x-attribsPrefix"]);
        }
        result = clone_1;
    }
    else if (isCDATA(node)) {
        var children = recursive ? cloneChildren(node.children) : [];
        var clone_2 = new NodeWithChildren(domelementtype_1.ElementType.CDATA, children);
        children.forEach(function (child) { return (child.parent = clone_2); });
        result = clone_2;
    }
    else if (isDocument(node)) {
        var children = recursive ? cloneChildren(node.children) : [];
        var clone_3 = new Document(children);
        children.forEach(function (child) { return (child.parent = clone_3); });
        if (node["x-mode"]) {
            clone_3["x-mode"] = node["x-mode"];
        }
        result = clone_3;
    }
    else if (isDirective(node)) {
        var instruction = new ProcessingInstruction(node.name, node.data);
        if (node["x-name"] != null) {
            instruction["x-name"] = node["x-name"];
            instruction["x-publicId"] = node["x-publicId"];
            instruction["x-systemId"] = node["x-systemId"];
        }
        result = instruction;
    }
    else {
        throw new Error("Not implemented yet: ".concat(node.type));
    }
    result.startIndex = node.startIndex;
    result.endIndex = node.endIndex;
    if (node.sourceCodeLocation != null) {
        result.sourceCodeLocation = node.sourceCodeLocation;
    }
    return result;
}
exports.cloneNode = cloneNode;
function cloneChildren(childs) {
    var children = childs.map(function (child) { return cloneNode(child, true); });
    for (var i = 1; i < children.length; i++) {
        children[i].prev = children[i - 1];
        children[i - 1].next = children[i];
    }
    return children;
}