happy-dom
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Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. It includes many web standards from WHATWG DOM and HTML.
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JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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var desc = Object.getOwnPropertyDescriptor(m, k);
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Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const DOMException_js_1 = __importDefault(require("../exception/DOMException.cjs"));
const PropertySymbol = __importStar(require("../PropertySymbol.cjs"));
const DOMExceptionNameEnum_js_1 = __importDefault(require("../exception/DOMExceptionNameEnum.cjs"));
const NodeTypeEnum_js_1 = __importDefault(require("../nodes/node/NodeTypeEnum.cjs"));
const NodeUtility_js_1 = __importDefault(require("../nodes/node/NodeUtility.cjs"));
/**
* Range utility.
*
* Based on:
* https://github.com/jsdom/jsdom/blob/master/lib/jsdom/living/range/boundary-point.js.
*/
class RangeUtility {
/**
* Compares boundary points.
*
* Based on logic from:
* https://github.com/jsdom/jsdom/blob/master/lib/jsdom/living/range/boundary-point.js
*
* @see https://dom.spec.whatwg.org/#concept-range-bp-after
* @param pointA Point A.
* @param pointB Point B.
* @returns A number, -1, 0, or 1, indicating whether the corresponding boundary-point of the Range is respectively before, equal to, or after the corresponding boundary-point of sourceRange.
*/
static compareBoundaryPointsPosition(pointA, pointB) {
if (pointA.node === pointB.node) {
if (pointA.offset === pointB.offset) {
return 0;
}
else if (pointA.offset < pointB.offset) {
return -1;
}
return 1;
}
if (NodeUtility_js_1.default.isFollowing(pointA.node, pointB.node)) {
return this.compareBoundaryPointsPosition(pointB, pointA) === -1 ? 1 : -1;
}
if (NodeUtility_js_1.default.isInclusiveAncestor(pointA.node, pointB.node)) {
let child = pointB.node;
while (child[PropertySymbol.parentNode] !== pointA.node) {
child = child[PropertySymbol.parentNode];
}
if (child[PropertySymbol.parentNode][PropertySymbol.childNodes].indexOf(child) <
pointA.offset) {
return 1;
}
}
return -1;
}
/**
* Validates a boundary point.
*
* @throws DOMException
* @param point Boundary point.
*/
static validateBoundaryPoint(point) {
if (point.node[PropertySymbol.nodeType] === NodeTypeEnum_js_1.default.documentTypeNode) {
throw new DOMException_js_1.default(`DocumentType Node can't be used as boundary point.`, DOMExceptionNameEnum_js_1.default.invalidNodeTypeError);
}
if (point.offset > NodeUtility_js_1.default.getNodeLength(point.node)) {
throw new DOMException_js_1.default(`Offset out of bound.`, DOMExceptionNameEnum_js_1.default.indexSizeError);
}
}
/**
* Returns "true" if contained.
*
* @param node Node.
* @param range Range.
* @returns "true" if contained.
*/
static isContained(node, range) {
return (this.compareBoundaryPointsPosition({ node, offset: 0 }, { node: range.startContainer, offset: range.startOffset }) === 1 &&
this.compareBoundaryPointsPosition({ node, offset: NodeUtility_js_1.default.getNodeLength(node) }, { node: range.endContainer, offset: range.endOffset }) === -1);
}
/**
* Returns "true" if partially contained.
*
* @param node Node.
* @param range Range.
* @returns "true" if partially contained.
*/
static isPartiallyContained(node, range) {
return ((NodeUtility_js_1.default.isInclusiveAncestor(node, range.startContainer) &&
!NodeUtility_js_1.default.isInclusiveAncestor(node, range.endContainer)) ||
(!NodeUtility_js_1.default.isInclusiveAncestor(node, range.startContainer) &&
NodeUtility_js_1.default.isInclusiveAncestor(node, range.endContainer)));
}
}
exports.default = RangeUtility;
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