blob: 09689fd6bd9bbfb699c22a21177b17a54a6359c3 [file] [log] [blame]
"use strict";
const conversions = require("webidl-conversions");
const utils = require("./utils.js");
const Node = require("./Node.js");
const MutationObserverInit = require("./MutationObserverInit.js");
const implSymbol = utils.implSymbol;
const ctorRegistrySymbol = utils.ctorRegistrySymbol;
const interfaceName = "MutationObserver";
exports.is = value => {
return utils.isObject(value) && utils.hasOwn(value, implSymbol) && value[implSymbol] instanceof Impl.implementation;
};
exports.isImpl = value => {
return utils.isObject(value) && value instanceof Impl.implementation;
};
exports.convert = (value, { context = "The provided value" } = {}) => {
if (exports.is(value)) {
return utils.implForWrapper(value);
}
throw new TypeError(`${context} is not of type 'MutationObserver'.`);
};
function makeWrapper(globalObject) {
if (globalObject[ctorRegistrySymbol] === undefined) {
throw new Error("Internal error: invalid global object");
}
const ctor = globalObject[ctorRegistrySymbol]["MutationObserver"];
if (ctor === undefined) {
throw new Error("Internal error: constructor MutationObserver is not installed on the passed global object");
}
return Object.create(ctor.prototype);
}
exports.create = (globalObject, constructorArgs, privateData) => {
const wrapper = makeWrapper(globalObject);
return exports.setup(wrapper, globalObject, constructorArgs, privateData);
};
exports.createImpl = (globalObject, constructorArgs, privateData) => {
const wrapper = exports.create(globalObject, constructorArgs, privateData);
return utils.implForWrapper(wrapper);
};
exports._internalSetup = (wrapper, globalObject) => {};
exports.setup = (wrapper, globalObject, constructorArgs = [], privateData = {}) => {
privateData.wrapper = wrapper;
exports._internalSetup(wrapper, globalObject);
Object.defineProperty(wrapper, implSymbol, {
value: new Impl.implementation(globalObject, constructorArgs, privateData),
configurable: true
});
wrapper[implSymbol][utils.wrapperSymbol] = wrapper;
if (Impl.init) {
Impl.init(wrapper[implSymbol]);
}
return wrapper;
};
exports.new = globalObject => {
const wrapper = makeWrapper(globalObject);
exports._internalSetup(wrapper, globalObject);
Object.defineProperty(wrapper, implSymbol, {
value: Object.create(Impl.implementation.prototype),
configurable: true
});
wrapper[implSymbol][utils.wrapperSymbol] = wrapper;
if (Impl.init) {
Impl.init(wrapper[implSymbol]);
}
return wrapper[implSymbol];
};
const exposed = new Set(["Window"]);
exports.install = (globalObject, globalNames) => {
if (!globalNames.some(globalName => exposed.has(globalName))) {
return;
}
class MutationObserver {
constructor(callback) {
if (arguments.length < 1) {
throw new TypeError(
"Failed to construct 'MutationObserver': 1 argument required, but only " + arguments.length + " present."
);
}
const args = [];
{
let curArg = arguments[0];
curArg = utils.tryImplForWrapper(curArg);
args.push(curArg);
}
return exports.setup(Object.create(new.target.prototype), globalObject, args);
}
observe(target) {
const esValue = this !== null && this !== undefined ? this : globalObject;
if (!exports.is(esValue)) {
throw new TypeError("Illegal invocation");
}
if (arguments.length < 1) {
throw new TypeError(
"Failed to execute 'observe' on 'MutationObserver': 1 argument required, but only " +
arguments.length +
" present."
);
}
const args = [];
{
let curArg = arguments[0];
curArg = Node.convert(curArg, { context: "Failed to execute 'observe' on 'MutationObserver': parameter 1" });
args.push(curArg);
}
{
let curArg = arguments[1];
curArg = MutationObserverInit.convert(curArg, {
context: "Failed to execute 'observe' on 'MutationObserver': parameter 2"
});
args.push(curArg);
}
return esValue[implSymbol].observe(...args);
}
disconnect() {
const esValue = this !== null && this !== undefined ? this : globalObject;
if (!exports.is(esValue)) {
throw new TypeError("Illegal invocation");
}
return esValue[implSymbol].disconnect();
}
takeRecords() {
const esValue = this !== null && this !== undefined ? this : globalObject;
if (!exports.is(esValue)) {
throw new TypeError("Illegal invocation");
}
return utils.tryWrapperForImpl(esValue[implSymbol].takeRecords());
}
}
Object.defineProperties(MutationObserver.prototype, {
observe: { enumerable: true },
disconnect: { enumerable: true },
takeRecords: { enumerable: true },
[Symbol.toStringTag]: { value: "MutationObserver", configurable: true }
});
if (globalObject[ctorRegistrySymbol] === undefined) {
globalObject[ctorRegistrySymbol] = Object.create(null);
}
globalObject[ctorRegistrySymbol][interfaceName] = MutationObserver;
Object.defineProperty(globalObject, interfaceName, {
configurable: true,
writable: true,
value: MutationObserver
});
};
const Impl = require("../mutation-observer/MutationObserver-impl.js");