data-transport
Version:
A simple and responsive transport
125 lines • 15.1 kB
JavaScript
import { __assign, __awaiter, __extends, __generator, __rest } from "tslib";
import { Transport } from '../transport';
var connectEventName = 'worker-connect';
var WorkerMainTransport = /** @class */ (function (_super) {
__extends(WorkerMainTransport, _super);
function WorkerMainTransport(_options) {
var _this = this;
var worker = _options.worker, _a = _options.listener, listener = _a === void 0 ? function (callback) {
var handler = function (_a) {
var data = _a.data;
callback(data);
};
worker.addEventListener('message', handler);
return function () {
worker.removeEventListener('message', handler);
};
} : _a, _b = _options.sender, sender = _b === void 0 ? function (message) {
var _a;
var transfer = (_a = message.transfer) !== null && _a !== void 0 ? _a : [];
delete message.transfer;
worker.postMessage(message, transfer);
} : _b, options = __rest(_options, ["worker", "listener", "sender"]);
_this = _super.call(this, __assign(__assign({}, options), { listener: listener, sender: sender })) || this;
_this._connected = false;
_this._handleConnectCallbacks = function () { return __awaiter(_this, void 0, void 0, function () {
return __generator(this, function (_a) {
if (this._connected) {
return [2 /*return*/];
}
this._connected = true;
this._onConnectCallback.forEach(function (callback) {
callback();
});
this._onConnectCallback.clear();
return [2 /*return*/];
});
}); };
_this._onConnectCallback = new Set();
_this.emit({
// @ts-ignore
name: connectEventName,
respond: true,
silent: true,
}).then(_this._handleConnectCallbacks);
// @ts-ignore
_this.listen(connectEventName, _this._handleConnectCallbacks);
return _this;
}
WorkerMainTransport.prototype.onConnect = function (callback) {
var _this = this;
if (this._connected) {
return callback();
}
this._onConnectCallback.add(callback);
return function () {
_this._onConnectCallback.delete(callback);
};
};
return WorkerMainTransport;
}(Transport));
export { WorkerMainTransport };
var WorkerInternalTransport = /** @class */ (function (_super) {
__extends(WorkerInternalTransport, _super);
function WorkerInternalTransport(_options) {
if (_options === void 0) { _options = {}; }
var _this = this;
var _a = _options.listener, listener = _a === void 0 ? function (callback) {
var handler = (function (_a) {
var data = _a.data;
callback(data);
});
self.addEventListener('message', handler);
return function () {
self.removeEventListener('message', handler);
};
} : _a, _b = _options.sender, sender = _b === void 0 ? function (message) {
var _a;
var transfer = (_a = message.transfer) !== null && _a !== void 0 ? _a : [];
delete message.transfer;
postMessage(message, transfer);
} : _b, options = __rest(_options, ["listener", "sender"]);
_this = _super.call(this, __assign(__assign({}, options), { listener: listener, sender: sender })) || this;
_this._handleConnectCallbacks = function () { return __awaiter(_this, void 0, void 0, function () {
return __generator(this, function (_a) {
if (this._connected) {
return [2 /*return*/];
}
this._connected = true;
this._onConnectCallback.forEach(function (callback) {
callback();
});
this._onConnectCallback.clear();
return [2 /*return*/];
});
}); };
_this._connected = false;
_this._onConnectCallback = new Set();
_this.emit({
// @ts-ignore
name: connectEventName,
respond: true,
silent: true,
}).then(_this._handleConnectCallbacks);
// @ts-ignore
_this.listen(connectEventName, _this._handleConnectCallbacks);
return _this;
}
WorkerInternalTransport.prototype.onConnect = function (callback) {
var _this = this;
if (this._connected) {
return callback();
}
this._onConnectCallback.add(callback);
return function () {
_this._onConnectCallback.delete(callback);
};
};
return WorkerInternalTransport;
}(Transport));
export { WorkerInternalTransport };
export var WorkerTransport = {
Main: WorkerMainTransport,
Worker: WorkerInternalTransport,
};
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[];\n        delete message.transfer;\n        worker.postMessage(message, transfer);\n      },\n      ...options\n    } = _options;\n    super({\n      ...options,\n      listener,\n      sender,\n    });\n\n    this.emit({\n      // @ts-ignore\n      name: connectEventName,\n      respond: true,\n      silent: true,\n    }).then(this._handleConnectCallbacks);\n\n    // @ts-ignore\n    this.listen(connectEventName, this._handleConnectCallbacks);\n  }\n\n  private _connected = false;\n\n  private _handleConnectCallbacks = async () => {\n    if (this._connected) {\n      return;\n    }\n    this._connected = true;\n    this._onConnectCallback.forEach((callback) => {\n      callback();\n    });\n    this._onConnectCallback.clear();\n  };\n\n  private _onConnectCallback = new Set<ClientCallback>();\n\n  onConnect(callback: ClientCallback) {\n    if (this._connected) {\n      return callback();\n    }\n    this._onConnectCallback.add(callback);\n    return () => {\n      this._onConnectCallback.delete(callback);\n    };\n  }\n}\n\nexport abstract class WorkerInternalTransport<\n  T extends BaseInteraction = any\n> extends Transport<T> {\n  constructor(_options: WorkerInternalTransportOptions = {}) {\n    const {\n      listener = (callback) => {\n        const handler = (({ data }: MessageEvent<any>) => {\n          callback(data);\n        }) as EventListenerOrEventListenerObject;\n        self.addEventListener('message', handler);\n        return () => {\n          self.removeEventListener('message', handler);\n        };\n      },\n      sender = (message) => {\n        const transfer = message.transfer ?? [];\n        delete message.transfer;\n        postMessage(message, transfer);\n      },\n      ...options\n    } = _options;\n    super({\n      ...options,\n      listener,\n      sender,\n    });\n\n    this.emit({\n      // @ts-ignore\n      name: connectEventName,\n      respond: true,\n      silent: true,\n    }).then(this._handleConnectCallbacks);\n\n    // @ts-ignore\n    this.listen(connectEventName, this._handleConnectCallbacks);\n  }\n\n  private _handleConnectCallbacks = async () => {\n    if (this._connected) {\n      return;\n    }\n    this._connected = true;\n    this._onConnectCallback.forEach((callback) => {\n      callback();\n    });\n    this._onConnectCallback.clear();\n  };\n\n  private _connected = false;\n\n  private _onConnectCallback = new Set<ClientCallback>();\n\n  onConnect(callback: ClientCallback) {\n    if (this._connected) {\n      return callback();\n    }\n    this._onConnectCallback.add(callback);\n    return () => {\n      this._onConnectCallback.delete(callback);\n    };\n  }\n}\n\nexport const WorkerTransport = {\n  Main: WorkerMainTransport,\n  Worker: WorkerInternalTransport,\n};\n"]}