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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| import { DataEditorResponseEvents } from './messages' | ||
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| type DefaultEventResponses = { | ||
| [R in keyof DataEditorResponseEvents]: ( | ||
| request: DataEditorResponseEvents[R] | ||
| ) => void | ||
| } | ||
| export const DefaultInputListeners: DefaultEventResponses = { | ||
| requestEditedData: function ( | ||
| request: [response: { bytes: Uint8Array; str: string }] | ||
| ): void { | ||
| throw new Error('Function not implemented.') | ||
| }, | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| import assert from 'assert' | ||
| import { describe } from 'mocha' | ||
| import { EventEmitter } from 'stream' | ||
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|
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| interface RequestEmitter<RequestTypes> { | ||
| on<R extends keyof RequestTypes>( | ||
| event: R, | ||
| listener: (...args: ) => any | ||
| ): any | ||
| } | ||
| interface ResponseEmitter<ResponseTypes> { | ||
| on(event: string, listener: (...args: any[]) => any): any | ||
| } | ||
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|
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| /// The extension handles all data anyways so it should define both request and response types, or the requester could send any arbitrary request event | ||
| class EventChannel<RequestTypes, ResponseTypes> { | ||
| __req: RequestEmitter<RequestTypes> | undefined = undefined | ||
| __res: ResponseEmitter<ResponseTypes> | undefined = undefined | ||
| constructor() {} | ||
| setRequester(req: RequestEmitter<RequestTypes>) { | ||
| if (this.__req) throw 'A Requester already exists on this channel' | ||
| this.__req = req | ||
| } | ||
| setResponder(res: ResponseEmitter<ResponseTypes>) { | ||
| if (this.__res) throw 'A Responder already exists on this channel' | ||
| this.__res = res | ||
| } | ||
|
|
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| } | ||
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| const EventChannelMap: Map<string, EventChannel<any, any>> = new Map() | ||
| class EventManager { | ||
| static CreateChannel<Req, Res>(id: string): EventChannel<Req, Res> { | ||
| const channel = new EventChannel<Req, Res>() | ||
| EventChannelMap.set(id, channel) | ||
| return channel | ||
| } | ||
| static GetChannel<ID extends string>(id: string): EventChannel<EventChannelMap[ID],Res> { | ||
| if (!EventChannelMap.get(id)) throw `No Channel with ID = ${id}` | ||
| return EventChannelMap.get(id)! | ||
| } | ||
| } | ||
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| interface UIEvents { | ||
| e1: [] | ||
| save: [data: { filename: string }] | ||
| shutdown: [data: { filename: string; time: number }] | ||
| } | ||
| class UIEventEmitter implements RequestEmitter<UIEvents> { | ||
| constructor(private __emitter: EventEmitter<UIEvents>) {} | ||
| // __emitter = new EventEmitter<UIEvents>() | ||
| on = this.__emitter.on | ||
| } | ||
| class UI { | ||
| readonly __docID = 'session-id' | ||
| __emitter = new EventEmitter<UIEvents>() | ||
| requester: RequestEmitter<UIEvents> = new UIEventEmitter(this.__emitter) | ||
| constructor() { | ||
| EventManager.GetChannel(this.__docID).__req = this.requester | ||
| } | ||
| simulateResponseListenerAdd() {} | ||
| simulateInputReceived() { | ||
| this.__emitter.emit('shutdown', { filename: 'testfile/name.bin', time: 0 }) | ||
| } | ||
| } | ||
| interface ExtResponses { | ||
| 'data-refresh': [data: { encoding: string; offset: number; data: Uint8Array }] | ||
| 'file-info': [data: { filename: string; filesize: number }] | ||
| } | ||
| class ExtResponder implements ResponseEmitter<ExtResponses> { | ||
| __emitter = new EventEmitter<ExtResponses>() | ||
| on = this.__emitter.on | ||
| } | ||
| class Ext { | ||
| readonly __sessionId = 'session-id' | ||
| responder: ResponseEmitter<ExtResponses> = new ExtResponder() | ||
| constructor() { | ||
| const channel = EventManager.CreateChannel<UIEvents, ExtResponses>(this.__sessionId) | ||
| } | ||
| } | ||
| const ui = new UI() | ||
| describe('Event Channel Behavior', () => { | ||
| describe('Manager', () => { | ||
| it('Should create a channel if one does not already exist', () => { | ||
| const channel = EventManager.GetChannel(ui.__docID) | ||
| assert.equal(EventChannelMap.size, 1) | ||
| assert(EventChannelMap.get(ui.__docID)) | ||
| assert(channel) | ||
| EventChannelMap.clear() | ||
| }) | ||
| }) | ||
| it('Should allow a requester to add listeners to events that the responder emits', () => {}) | ||
| it('Should allow a responder to add listeners to events that the requester emits', () => {}) | ||
| it('Should contain requester and responder abstractions', () => {}) | ||
| }) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| import assert from 'assert' | ||
| import EventEmitter from 'events' | ||
| import { describe } from 'mocha' | ||
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| interface RequestEvents { | ||
| ping: [] | ||
| scroll: [data: { offset: number }] | ||
| multidata: [data: { str: string; bin: Uint8Array; num: number }] | ||
| } | ||
| interface ResponseEvents { | ||
| pong: [] | ||
| 'file-info': [data: { filename: string; size: number }] | ||
| } | ||
| type EventMap = { [K: string]: [any] } | ||
| type RequestListener<E> = { | ||
| on<Key extends string & keyof E>( | ||
| event: Key, | ||
| listener: (content: E[Key]) => void | ||
| ): void | ||
| } | ||
| class RequestEmitter extends EventEmitter {} | ||
| class Requester<EventTypes> { | ||
| constructor( | ||
| public __channelNotify: <R extends keyof EventTypes>( | ||
| type: R, | ||
| data: EventTypes[R] | ||
| ) => void | ||
| ) {} | ||
| request<R extends keyof EventTypes>(type: R, data: EventTypes[R]) {} | ||
| } | ||
| class Responder<EventTypes> { | ||
| constructor( | ||
| public __channelNotify: <R extends keyof EventTypes>( | ||
| type: R, | ||
| data: EventTypes[R] | ||
| ) => void | ||
| ) {} | ||
| respond<R extends keyof EventTypes>(type: R, data: EventTypes[R]) {} | ||
| } | ||
| class ChannelMember<OutEvents, InEvents> { | ||
| constructor( | ||
| readonly send: <R extends keyof OutEvents>( | ||
| type: R, | ||
| data: OutEvents[R] | ||
| ) => void, | ||
| readonly on: <R extends keyof InEvents>( | ||
| type: R, | ||
| listener: (data: InEvents[R]) => void | ||
| ) => void | ||
| ) {} | ||
| } | ||
| class EventChannel<Req, Res> { | ||
| __requester: ChannelMember<Req, Res> | undefined | ||
| __requestMap: { [K in keyof Res]: (request: Res[K]) => void } | ||
| __responder: ChannelMember<Res, Req> | undefined | ||
| __responseMap: { [K in keyof Req]: (request: Req[K]) => void } | ||
| constructor() {} | ||
| createRequester() { | ||
| this.__requester = new ChannelMember<Req, Res>( | ||
| (type, data) => { | ||
| this.__responseMap | ||
| }, | ||
| (type, listener) => { | ||
| this.__requestMap![type] = listener | ||
| } | ||
| ) | ||
| return this.__requester | ||
| } | ||
| createResponder() { | ||
| this.__responder = new ChannelMember<Res, Req>((type, data) => { | ||
| this.__requestMap | ||
| }) | ||
| return this.__responder | ||
| } | ||
| } | ||
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| // class EventChannelManager { | ||
| // static CreateChannel<Req, Res>(): EventChannel | ||
| // } | ||
| describe('', () => { | ||
| const ec = new EventChannel<RequestEvents, ResponseEvents>() | ||
| const req = ec.createRequester().send('ping', []) | ||
| }) |
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