nebel/node-web-gpio
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Compliant with specification in Web GPIO API

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Nebel 2019-10-18 21:36:49 +09:00
parent 832143b725
commit 23038476a6
1 changed files with 5 additions and 15 deletions
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20
index.ts
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@ -36,13 +36,6 @@ interface GPIOChangeEventHandler {
(event: GPIOChangeEvent): void; (event: GPIOChangeEvent): void;
} }
/**
* Not a specification in Web GPIO API.
*/
interface GPIOPortChangeEventHandler {
(event: GPIOChangeEvent["value"]): void;
}
export class GPIOAccess extends EventEmitter { export class GPIOAccess extends EventEmitter {
private readonly _ports: GPIOPortMap; private readonly _ports: GPIOPortMap;
onchange: GPIOChangeEventHandler | undefined; onchange: GPIOChangeEventHandler | undefined;
@ -52,8 +45,7 @@ export class GPIOAccess extends EventEmitter {
this._ports = ports == null ? new GPIOPortMap() : ports; this._ports = ports == null ? new GPIOPortMap() : ports;
this._ports.forEach(port => this._ports.forEach(port =>
port.on("change", value => { port.on("change", event => {
const event: GPIOChangeEvent = { value, port };
this.emit("change", event); this.emit("change", event);
}) })
); );
@ -91,7 +83,7 @@ export class GPIOPort extends EventEmitter {
private _exported: boolean | OperationError; private _exported: boolean | OperationError;
private _value: GPIOValue | undefined; private _value: GPIOValue | undefined;
private _timeout: ReturnType<typeof setInterval> | undefined; private _timeout: ReturnType<typeof setInterval> | undefined;
onchange: GPIOPortChangeEventHandler | undefined; onchange: GPIOChangeEventHandler | undefined;
constructor(portNumber: PortNumber) { constructor(portNumber: PortNumber) {
super(); super();
@ -101,8 +93,8 @@ export class GPIOPort extends EventEmitter {
this._direction = new OperationError("Unknown direction."); this._direction = new OperationError("Unknown direction.");
this._exported = new OperationError("Unknown export."); this._exported = new OperationError("Unknown export.");
this.on("change", (value: GPIOChangeEvent["value"]): void => { this.on("change", (event: GPIOChangeEvent): void => {
if (this.onchange !== undefined) this.onchange(value); if (this.onchange !== undefined) this.onchange(event);
}); });
} }
@ -198,7 +190,7 @@ export class GPIOPort extends EventEmitter {
if (this._value !== value) { if (this._value !== value) {
this._value = value; this._value = value;
this.emit("change", value); this.emit("change", { value, port: this });
} }
return value; return value;
@ -228,7 +220,6 @@ export class GPIOPort extends EventEmitter {
export class InvalidAccessError extends Error { export class InvalidAccessError extends Error {
constructor(message: string) { constructor(message: string) {
super(message); super(message);
this.name = this.constructor.name; this.name = this.constructor.name;
} }
} }
@ -236,7 +227,6 @@ export class InvalidAccessError extends Error {
export class OperationError extends Error { export class OperationError extends Error {
constructor(message: string) { constructor(message: string) {
super(message); super(message);
this.name = this.constructor.name; this.name = this.constructor.name;
} }
} }