angular-serial/esm2022/lib/ngx-serial.mjs

NgxSerial eases the use of the Serial Web API in Angular.

export class NgxSerial {
    port;
    options = { baudRate: 9600, dataBits: 8, parity: 'none', bufferSize: 256, flowControl: 'none' }; //Default
    writer;
    readFunction;
    controlCharacter = "\n";
    reader;
    readableStreamClosed;
    writableStreamClosed;
    keepReading = true;
    constructor(readFunction, options, controlCharacter) {
        this.readFunction = readFunction;
        if (options)
            this.options = options;
        if (controlCharacter)
            this.controlCharacter = controlCharacter;
    }
    async sendData(data) {
        await this.writer.write(data);
    }
    async readLoop() {
        while (this.port.readable && this.keepReading) {
            const textDecoder = new TextDecoderStream();
            this.readableStreamClosed = this.port.readable.pipeTo(textDecoder.writable);
            this.reader = textDecoder.readable
                .pipeThrough(new TransformStream(new LineBreakTransformer(this.controlCharacter)))
                .getReader();
            try {
                while (true) {
                    const { value, done } = await this.reader.read();
                    if (done) {
                        break;
                    }
                    if (value) {
                        this.readFunction(value);
                    }
                }
            }
            catch (error) {
                console.error("Read Loop error. Have the serial device been disconnected ? ");
            }
        }
    }
    async close(callback) {
        this.keepReading = false;
        this.reader.cancel();
        await this.readableStreamClosed.catch(() => { });
        this.writer.close();
        await this.writableStreamClosed;
        await this.port.close();
        callback(null);
    }
    async connect(callback) {
        this.keepReading = true;
        if ("serial" in navigator) {
            // The Web Serial API is supported by the browser.
            let nav = navigator;
            const ports = await nav.serial.getPorts();
            try {
                this.port = await nav.serial.requestPort();
            }
            catch (error) {
                console.error("Requesting port error: " + error);
                return;
            }
            try {
                await this.port.open(this.options);
            }
            catch (error) {
                console.error("Opening port error: " + error);
                return;
            }
            const textEncoder = new TextEncoderStream();
            this.writableStreamClosed = textEncoder.readable.pipeTo(this.port.writable);
            this.writer = textEncoder.writable.getWriter();
            this.readLoop();
            callback(this.port);
        }
        else {
            console.error("This browser does NOT support the Web Serial API");
        }
    }
}
class LineBreakTransformer {
    container = "";
    controlCharacter;
    constructor(controlCharacter) {
        this.container = '';
        this.controlCharacter = controlCharacter;
    }
    transform(chunk, controller) {
        this.container += chunk;
        const lines = this.container.split(this.controlCharacter);
        this.container = lines.pop();
        lines.forEach((line) => controller.enqueue(line));
    }
    flush(controller) {
        controller.enqueue(this.container);
    }
}
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"ngx-serial.js","sourceRoot":"","sources":["../../../../projects/angular-serial/src/lib/ngx-serial.ts"],"names":[],"mappings":"AAEA,MAAM,OAAO,SAAS;IAEV,IAAI,CAAM;IACV,OAAO,GAAG,EAAE,QAAQ,EAAE,IAAI,EAAE,QAAQ,EAAE,CAAC,EAAE,MAAM,EAAE,MAAM,EAAE,UAAU,EAAE,GAAG,EAAE,WAAW,EAAE,MAAM,EAAE,CAAC,CAAC,SAAS;IAC1G,MAAM,CAAM;IACZ,YAAY,CAAW;IACvB,gBAAgB,GAAW,IAAI,CAAC;IAChC,MAAM,CAAK;IACX,oBAAoB,CAAK;IACzB,oBAAoB,CAAK;IACzB,WAAW,GAAW,IAAI,CAAC;IAEnC,YAAY,YAAsB,EAAE,OAAa,EAAE,gBAAsB;QACvE,IAAI,CAAC,YAAY,GAAG,YAAY,CAAC;QACjC,IAAI,OAAO;YACT,IAAI,CAAC,OAAO,GAAG,OAAO,CAAC;QACzB,IAAI,gBAAgB;YAClB,IAAI,CAAC,gBAAgB,GAAG,gBAAgB,CAAC;IAE7C,CAAC;IACM,KAAK,CAAC,QAAQ,CAAC,IAAY;QAChC,MAAM,IAAI,CAAC,MAAM,CAAC,KAAK,CAAC,IAAI,CAAC,CAAC;IAChC,CAAC;IAEO,KAAK,CAAC,QAAQ;QAGpB,OAAO,IAAI,CAAC,IAAI,CAAC,QAAQ,IAAI,IAAI,CAAC,WAAW,EAAG;YAC9C,MAAM,WAAW,GAAG,IAAI,iBAAiB,EAAE,CAAC;YAC5C,IAAI,CAAC,oBAAoB,GAAG,IAAI,CAAC,IAAI,CAAC,QAAQ,CAAC,MAAM,CAAC,WAAW,CAAC,QAAQ,CAAC,CAAC;YAC5E,IAAI,CAAC,MAAM,GAAG,WAAW,CAAC,QAAQ;iBAC/B,WAAW,CAAC,IAAI,eAAe,CAAC,IAAI,oBAAoB,CAAC,IAAI,CAAC,gBAAgB,CAAC,CAAC,CAAC;iBACjF,SAAS,EAAE,CAAC;YAEf,IAAI;gBACF,OAAO,IAAI,EAAE;oBACX,MAAM,EAAE,KAAK,EAAE,IAAI,EAAE,GAAG,MAAM,IAAI,CAAC,MAAM,CAAC,IAAI,EAAE,CAAC;oBACjD,IAAI,IAAI,EAAE;wBACR,MAAM;qBACP;oBACD,IAAI,KAAK,EAAE;wBACT,IAAI,CAAC,YAAY,CAAC,KAAK,CAAC,CAAC;qBAC1B;iBACF;aACF;YAAC,OAAO,KAAK,EAAE;gBACd,OAAO,CAAC,KAAK,CAAC,8DAA8D,CAAC,CAAC;aAC/E;SACF;IACH,CAAC;IACM,KAAK,CAAC,KAAK,CAAC,QAAiB;QAClC,IAAI,CAAC,WAAW,GAAG,KAAK,CAAC;QACzB,IAAI,CAAC,MAAM,CAAC,MAAM,EAAE,CAAC;QACrB,MAAM,IAAI,CAAC,oBAAoB,CAAC,KAAK,CAAC,GAAG,EAAE,GAAE,CAAC,CAAC,CAAC;QAChD,IAAI,CAAC,MAAM,CAAC,KAAK,EAAE,CAAC;QACpB,MAAM,IAAI,CAAC,oBAAoB,CAAC;QAChC,MAAM,IAAI,CAAC,IAAI,CAAC,KAAK,EAAE,CAAC;QACxB,QAAQ,CAAC,IAAI,CAAC,CAAC;IACjB,CAAC;IAEM,KAAK,CAAC,OAAO,CAAC,QAAiB;QACpC,IAAI,CAAC,WAAW,GAAG,IAAI,CAAC;QACxB,IAAI,QAAQ,IAAI,SAAS,EAAE;YACzB,kDAAkD;YAClD,IAAI,GAAG,GAAQ,SAAS,CAAC;YACzB,MAAM,KAAK,GAAG,MAAM,GAAG,CAAC,MAAM,CAAC,QAAQ,EAAE,CAAC;YAE1C,IAAI;gBACF,IAAI,CAAC,IAAI,GAAG,MAAM,GAAG,CAAC,MAAM,CAAC,WAAW,EAAE,CAAC;aAE5C;YAAC,OAAO,KAAK,EAAE;gBACd,OAAO,CAAC,KAAK,CAAC,yBAAyB,GAAG,KAAK,CAAC,CAAC;gBACjD,OAAO;aACR;YAED,IAAI;gBACH,MAAM,IAAI,CAAC,IAAI,CAAC,IAAI,CAAC,IAAI,CAAC,OAAO,CAAC,CAAC;aAGnC;YAAC,OAAO,KAAK,EAAE;gBACd,OAAO,CAAC,KAAK,CAAC,sBAAsB,GAAG,KAAK,CAAC,CAAC;gBAC9C,OAAO;aACR;YAED,MAAM,WAAW,GAAG,IAAI,iBAAiB,EAAE,CAAC;YAC5C,IAAI,CAAC,oBAAoB,GAAG,WAAW,CAAC,QAAQ,CAAC,MAAM,CAAC,IAAI,CAAC,IAAI,CAAC,QAAQ,CAAC,CAAC;YAC5E,IAAI,CAAC,MAAM,GAAG,WAAW,CAAC,QAAQ,CAAC,SAAS,EAAE,CAAC;YAE/C,IAAI,CAAC,QAAQ,EAAE,CAAC;YAEhB,QAAQ,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC;SAErB;aAAM;YACL,OAAO,CAAC,KAAK,CAAC,kDAAkD,CAAC,CAAC;SACnE;IAEH,CAAC;CACF;AAED,MAAM,oBAAoB;IACxB,SAAS,GAAM,EAAE,CAAC;IACV,gBAAgB,CAAS;IAEjC,YAAY,gBAAwB;QAClC,IAAI,CAAC,SAAS,GAAG,EAAE,CAAC;QACpB,IAAI,CAAC,gBAAgB,GAAG,gBAAgB,CAAA;IAC1C,CAAC;IAED,SAAS,CAAC,KAAS,EAAE,UAAc;QACjC,IAAI,CAAC,SAAS,IAAI,KAAK,CAAC;QACxB,MAAM,KAAK,GAAG,IAAI,CAAC,SAAS,CAAC,KAAK,CAAC,IAAI,CAAC,gBAAgB,CAAC,CAAC;QAC1D,IAAI,CAAC,SAAS,GAAG,KAAK,CAAC,GAAG,EAAE,CAAC;QAC7B,KAAK,CAAC,OAAO,CAAC,CAAC,IAAS,EAAE,EAAE,CAAC,UAAU,CAAC,OAAO,CAAC,IAAI,CAAC,CAAC,CAAC;IACzD,CAAC;IAED,KAAK,CAAC,UAAc;QAClB,UAAU,CAAC,OAAO,CAAC,IAAI,CAAC,SAAS,CAAC,CAAC;IACrC,CAAC;CACF","sourcesContent":["import { NONE_TYPE } from \"@angular/compiler\";\n\nexport class NgxSerial {\n\n    private port: any;\n    private options = { baudRate: 9600, dataBits: 8, parity: 'none', bufferSize: 256, flowControl: 'none' }; //Default\n    private writer: any;\n    private readFunction: Function;\n    private controlCharacter: string = \"\\n\";\n    private reader:any;\n    private readableStreamClosed:any;\n    private writableStreamClosed:any;\n    private keepReading:boolean = true;\n  \n    constructor(readFunction: Function, options?: any, controlCharacter?: any) {\n      this.readFunction = readFunction;\n      if (options)\n        this.options = options;\n      if (controlCharacter)\n        this.controlCharacter = controlCharacter;\n  \n    }\n    public async sendData(data: string) {\n      await this.writer.write(data);\n    }\n  \n    private async readLoop() {\n      \n  \n      while (this.port.readable && this.keepReading ) {\n        const textDecoder = new TextDecoderStream();\n        this.readableStreamClosed = this.port.readable.pipeTo(textDecoder.writable);\n        this.reader = textDecoder.readable\n          .pipeThrough(new TransformStream(new LineBreakTransformer(this.controlCharacter)))\n          .getReader();\n  \n        try {\n          while (true) {\n            const { value, done } = await this.reader.read();\n            if (done) {\n              break;\n            }\n            if (value) {\n              this.readFunction(value);\n            }\n          }\n        } catch (error) {\n          console.error(\"Read Loop error. Have the serial device been disconnected ? \");\n        }\n      }\n    }\n    public async close(callback:Function) {\n      this.keepReading = false;\n      this.reader.cancel();\n      await this.readableStreamClosed.catch(() => {});\n      this.writer.close();\n      await this.writableStreamClosed;\n      await this.port.close();\n      callback(null);\n    }\n  \n    public async connect(callback:Function) {\n      this.keepReading = true;\n      if (\"serial\" in navigator) {\n        // The Web Serial API is supported by the browser.\n        let nav: any = navigator;\n        const ports = await nav.serial.getPorts();\n  \n        try {\n          this.port = await nav.serial.requestPort();\n  \n        } catch (error) {\n          console.error(\"Requesting port error: \" + error);\n          return;\n        }\n  \n        try {\n         await this.port.open(this.options);\n  \n  \n        } catch (error) {\n          console.error(\"Opening port error: \" + error);\n          return;\n        }\n  \n        const textEncoder = new TextEncoderStream();\n        this.writableStreamClosed = textEncoder.readable.pipeTo(this.port.writable);\n        this.writer = textEncoder.writable.getWriter();\n  \n        this.readLoop();\n  \n        callback(this.port);\n  \n      } else {\n        console.error(\"This browser does NOT support the Web Serial API\");\n      }\n  \n    }\n  }\n  \n  class LineBreakTransformer {\n    container: any=\"\";\n    private controlCharacter: string;\n  \n    constructor(controlCharacter: string) {\n      this.container = '';\n      this.controlCharacter = controlCharacter\n    }\n  \n    transform(chunk:any, controller:any) {\n      this.container += chunk;\n      const lines = this.container.split(this.controlCharacter);\n      this.container = lines.pop();\n      lines.forEach((line: any) => controller.enqueue(line));\n    }\n  \n    flush(controller:any) {\n      controller.enqueue(this.container);\n    }\n  }"]}