| "use strict"; |
| |
| const conversions = require("webidl-conversions"); |
| const utils = require("./utils.js"); |
| |
| const BlobPropertyBag = require("./BlobPropertyBag.js"); |
| const implSymbol = utils.implSymbol; |
| const ctorRegistrySymbol = utils.ctorRegistrySymbol; |
| |
| const interfaceName = "Blob"; |
| |
| exports.is = function is(obj) { |
| return utils.isObject(obj) && utils.hasOwn(obj, implSymbol) && obj[implSymbol] instanceof Impl.implementation; |
| }; |
| exports.isImpl = function isImpl(obj) { |
| return utils.isObject(obj) && obj instanceof Impl.implementation; |
| }; |
| exports.convert = function convert(obj, { context = "The provided value" } = {}) { |
| if (exports.is(obj)) { |
| return utils.implForWrapper(obj); |
| } |
| throw new TypeError(`${context} is not of type 'Blob'.`); |
| }; |
| |
| exports.create = function create(globalObject, constructorArgs, privateData) { |
| if (globalObject[ctorRegistrySymbol] === undefined) { |
| throw new Error("Internal error: invalid global object"); |
| } |
| |
| const ctor = globalObject[ctorRegistrySymbol]["Blob"]; |
| if (ctor === undefined) { |
| throw new Error("Internal error: constructor Blob is not installed on the passed global object"); |
| } |
| |
| let obj = Object.create(ctor.prototype); |
| obj = exports.setup(obj, globalObject, constructorArgs, privateData); |
| return obj; |
| }; |
| exports.createImpl = function createImpl(globalObject, constructorArgs, privateData) { |
| const obj = exports.create(globalObject, constructorArgs, privateData); |
| return utils.implForWrapper(obj); |
| }; |
| exports._internalSetup = function _internalSetup(obj, globalObject) {}; |
| exports.setup = function setup(obj, globalObject, constructorArgs = [], privateData = {}) { |
| privateData.wrapper = obj; |
| |
| exports._internalSetup(obj, globalObject); |
| Object.defineProperty(obj, implSymbol, { |
| value: new Impl.implementation(globalObject, constructorArgs, privateData), |
| configurable: true |
| }); |
| |
| obj[implSymbol][utils.wrapperSymbol] = obj; |
| if (Impl.init) { |
| Impl.init(obj[implSymbol], privateData); |
| } |
| return obj; |
| }; |
| |
| exports.install = function install(globalObject) { |
| class Blob { |
| constructor() { |
| const args = []; |
| { |
| let curArg = arguments[0]; |
| if (curArg !== undefined) { |
| if (!utils.isObject(curArg)) { |
| throw new TypeError("Failed to construct 'Blob': parameter 1" + " is not an iterable object."); |
| } else { |
| const V = []; |
| const tmp = curArg; |
| for (let nextItem of tmp) { |
| if (exports.is(nextItem)) { |
| nextItem = utils.implForWrapper(nextItem); |
| } else if (utils.isArrayBuffer(nextItem)) { |
| } else if (ArrayBuffer.isView(nextItem)) { |
| } else { |
| nextItem = conversions["USVString"](nextItem, { |
| context: "Failed to construct 'Blob': parameter 1" + "'s element" |
| }); |
| } |
| V.push(nextItem); |
| } |
| curArg = V; |
| } |
| } |
| args.push(curArg); |
| } |
| { |
| let curArg = arguments[1]; |
| curArg = BlobPropertyBag.convert(curArg, { context: "Failed to construct 'Blob': parameter 2" }); |
| args.push(curArg); |
| } |
| return exports.setup(Object.create(new.target.prototype), globalObject, args); |
| } |
| |
| slice() { |
| const esValue = this !== null && this !== undefined ? this : globalObject; |
| if (!exports.is(esValue)) { |
| throw new TypeError("Illegal invocation"); |
| } |
| const args = []; |
| { |
| let curArg = arguments[0]; |
| if (curArg !== undefined) { |
| curArg = conversions["long long"](curArg, { |
| context: "Failed to execute 'slice' on 'Blob': parameter 1", |
| clamp: true |
| }); |
| } |
| args.push(curArg); |
| } |
| { |
| let curArg = arguments[1]; |
| if (curArg !== undefined) { |
| curArg = conversions["long long"](curArg, { |
| context: "Failed to execute 'slice' on 'Blob': parameter 2", |
| clamp: true |
| }); |
| } |
| args.push(curArg); |
| } |
| { |
| let curArg = arguments[2]; |
| if (curArg !== undefined) { |
| curArg = conversions["DOMString"](curArg, { context: "Failed to execute 'slice' on 'Blob': parameter 3" }); |
| } |
| args.push(curArg); |
| } |
| return utils.tryWrapperForImpl(esValue[implSymbol].slice(...args)); |
| } |
| |
| get size() { |
| const esValue = this !== null && this !== undefined ? this : globalObject; |
| |
| if (!exports.is(esValue)) { |
| throw new TypeError("Illegal invocation"); |
| } |
| |
| return esValue[implSymbol]["size"]; |
| } |
| |
| get type() { |
| const esValue = this !== null && this !== undefined ? this : globalObject; |
| |
| if (!exports.is(esValue)) { |
| throw new TypeError("Illegal invocation"); |
| } |
| |
| return esValue[implSymbol]["type"]; |
| } |
| } |
| Object.defineProperties(Blob.prototype, { |
| slice: { enumerable: true }, |
| size: { enumerable: true }, |
| type: { enumerable: true }, |
| [Symbol.toStringTag]: { value: "Blob", configurable: true } |
| }); |
| if (globalObject[ctorRegistrySymbol] === undefined) { |
| globalObject[ctorRegistrySymbol] = Object.create(null); |
| } |
| globalObject[ctorRegistrySymbol][interfaceName] = Blob; |
| |
| Object.defineProperty(globalObject, interfaceName, { |
| configurable: true, |
| writable: true, |
| value: Blob |
| }); |
| }; |
| |
| const Impl = require("../file-api/Blob-impl.js"); |