webbluetooth
Version:
Node.js implementation of the Web Bluetooth Specification
204 lines • 9.64 kB
JavaScript
;
/*
* Node Web Bluetooth
* Copyright (c) 2025 Rob Moran
*
* The MIT License (MIT)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g = Object.create((typeof Iterator === "function" ? Iterator : Object).prototype);
return g.next = verb(0), g["throw"] = verb(1), g["return"] = verb(2), typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (g && (g = 0, op[0] && (_ = 0)), _) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
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if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
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op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.BluetoothRemoteGATTServerImpl = void 0;
var uuid_1 = require("./uuid");
var adapters_1 = require("./adapters");
var service_1 = require("./service");
var events_1 = require("./events");
/**
* Bluetooth Remote GATT Server class
*/
var BluetoothRemoteGATTServerImpl = /** @class */ (function () {
/**
* Server constructor
* @param device Device the gatt server relates to
*/
function BluetoothRemoteGATTServerImpl(device) {
/**
* The device the gatt server is related to
*/
this.device = undefined;
this._connected = false;
/**
* @hidden
*/
this._handle = undefined;
this.services = undefined;
this.device = device;
this._handle = this.device.id;
}
Object.defineProperty(BluetoothRemoteGATTServerImpl.prototype, "connected", {
/**
* Whether the gatt server is connected
*/
get: function () {
return this._connected;
},
enumerable: false,
configurable: true
});
/**
* Connect the gatt server
* @returns Promise containing the gatt server
*/
BluetoothRemoteGATTServerImpl.prototype.connect = function () {
return __awaiter(this, void 0, void 0, function () {
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (this.connected) {
throw new Error('connect error: device already connected');
}
return [4 /*yield*/, adapters_1.adapter.connect(this._handle, function () {
_this.services = undefined;
_this._connected = false;
_this.device.dispatchEvent(new events_1.DOMEvent(_this.device, 'gattserverdisconnected'));
_this.device._bluetooth.dispatchEvent(new events_1.DOMEvent(_this.device, 'gattserverdisconnected'));
})];
case 1:
_a.sent();
this._connected = true;
return [2 /*return*/, this];
}
});
});
};
/**
* Disconnect the gatt server
*/
BluetoothRemoteGATTServerImpl.prototype.disconnect = function () {
adapters_1.adapter.disconnect(this._handle);
this._connected = false;
};
/**
* Gets a single primary service contained in the gatt server
* @param service service UUID
* @returns Promise containing the service
*/
BluetoothRemoteGATTServerImpl.prototype.getPrimaryService = function (service) {
return __awaiter(this, void 0, void 0, function () {
var services;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!this.connected) {
throw new Error('getPrimaryService error: device not connected');
}
if (!service) {
throw new Error('getPrimaryService error: no service specified');
}
return [4 /*yield*/, this.getPrimaryServices(service)];
case 1:
services = _a.sent();
if (services.length !== 1) {
throw new Error('getPrimaryService error: service not found');
}
return [2 /*return*/, services[0]];
}
});
});
};
/**
* Gets a list of primary services contained in the gatt server
* @param service service UUID
* @returns Promise containing an array of services
*/
BluetoothRemoteGATTServerImpl.prototype.getPrimaryServices = function (service) {
return __awaiter(this, void 0, void 0, function () {
var services, filtered;
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!this.connected) {
throw new Error('getPrimaryServices error: device not connected');
}
if (!!this.services) return [3 /*break*/, 2];
return [4 /*yield*/, adapters_1.adapter.discoverServices(this._handle, this.device._allowedServices)];
case 1:
services = _a.sent();
this.services = services.map(function (serviceInfo) {
Object.assign(serviceInfo, {
device: _this.device
});
return new service_1.BluetoothRemoteGATTServiceImpl(serviceInfo);
});
_a.label = 2;
case 2:
if (!service) {
return [2 /*return*/, this.services];
}
filtered = this.services.filter(function (serviceObject) { return serviceObject.uuid === uuid_1.BluetoothUUID.getService(service); });
if (filtered.length !== 1) {
throw new Error('getPrimaryServices error: service not found');
}
return [2 /*return*/, filtered];
}
});
});
};
return BluetoothRemoteGATTServerImpl;
}());
exports.BluetoothRemoteGATTServerImpl = BluetoothRemoteGATTServerImpl;
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