mirror of
https://github.com/hensm/fx_cast.git
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Convert shim to Typescript (#32)
This commit is contained in:
Matt Hensman
288
ext/src/shim/cast/index.ts
Executable file
288
ext/src/shim/cast/index.ts
Executable file
@@ -0,0 +1,288 @@
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"use strict";
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import ApiConfig from "./classes/ApiConfig";
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import DialRequest from "./classes/DialRequest";
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import Error_ from "./classes/Error";
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import Image_ from "./classes/Image";
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import Receiver from "./classes/Receiver";
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import ReceiverDisplayStatus from "./classes/ReceiverDisplayStatus";
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import SenderApplication from "./classes/SenderApplication";
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import Session from "./classes/Session";
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import SessionRequest from "./classes/SessionRequest";
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import Timeout from "./classes/Timeout";
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import Volume from "./classes/Volume";
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import { AutoJoinPolicy
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, Capability
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, DefaultActionPolicy
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, DialAppState
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, ErrorCode
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, ReceiverAction
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, ReceiverAvailability
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, ReceiverType
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, SenderPlatform
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, SessionStatus
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, VolumeControlType } from "./enums";
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import { requestSession as requestSessionTimeout } from "../timeout";
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import { onMessage, sendMessageResponse } from "../messageBridge";
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type ReceiverActionListener = (
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receiver: Receiver
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, receiverAction: typeof ReceiverAction) => void;
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type RequestSessionSuccessCallback = (session: Session, selectedMedia: string) => void;
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type SuccessCallback = () => void;
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type ErrorCallback = (err: Error_) => void;
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let apiConfig: ApiConfig;
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let receiverList: any[] = [];
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let sessionList: Session[] = [];
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let sessionRequestInProgress = false;
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let receiverListeners = new Set<ReceiverActionListener>();
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let sessionSuccessCallback: RequestSessionSuccessCallback;
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let sessionErrorCallback: ErrorCallback;
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export default {
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// Enums
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AutoJoinPolicy, Capability, DefaultActionPolicy, DialAppState
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, ErrorCode, ReceiverAction, ReceiverAvailability, ReceiverType
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, SenderPlatform, SessionStatus, VolumeControlType
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// Classes
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, ApiConfig, DialRequest, Error: Error_, Image: Image_
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, Receiver, ReceiverDisplayStatus, SenderApplication, Session
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, SessionRequest, Timeout, Volume
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, VERSION: [1, 2]
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, isAvailable: false
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, timeout: new Timeout()
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, addReceiverActionListener: (
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listener: ReceiverActionListener): void => {
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console.info("fx_cast (Debug): cast.addReceiverActionListener");
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receiverListeners.add(listener);
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}
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, initialize: (
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newApiConfig: ApiConfig
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, successCallback: SuccessCallback
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, errorCallback: ErrorCallback): void => {
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console.info("fx_cast (Debug): cast.initialize");
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// Already initialized
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if (apiConfig) {
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errorCallback(new Error_(ErrorCode.RECEIVER_UNAVAILABLE));
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return;
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}
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apiConfig = newApiConfig;
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sendMessageResponse({
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subject: "bridge:/startDiscovery"
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});
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console.log(receiverList.length)
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apiConfig.receiverListener(receiverList.length
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? ReceiverAvailability.AVAILABLE
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: ReceiverAvailability.UNAVAILABLE);
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successCallback();
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}
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, logMessage: (message: string): void => {
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console.log("CAST MSG:", message);
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}
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, precache: (data: string): void => {
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console.info("STUB :: cast.precache");
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}
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, removeReceiverActionListener: (
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listener: ReceiverActionListener): void => {
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receiverListeners.delete(listener);
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}
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, requestSession: (
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successCallback: RequestSessionSuccessCallback
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, errorCallback: ErrorCallback
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, sessionRequest: SessionRequest = apiConfig.sessionRequest): void => {
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console.info("fx_cast (Debug): cast.requestSession");
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// Called before initialization
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if (!apiConfig) {
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errorCallback(new Error_(ErrorCode.API_NOT_INITIALIZED));
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return;
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}
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// Already requesting session
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if (sessionRequestInProgress) {
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errorCallback(new Error_(ErrorCode.INVALID_PARAMETER
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, "Session request already in progress."));
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return;
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}
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// No available receivers
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if (!receiverList.length) {
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errorCallback(new Error_(ErrorCode.RECEIVER_UNAVAILABLE));
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return;
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}
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sessionRequestInProgress = true;
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sessionSuccessCallback = successCallback;
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sessionErrorCallback = errorCallback;
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// Open destination chooser
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sendMessageResponse({
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subject: "main:/openPopup"
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});
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}
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, requestSessionById: (sessionId: string): void => {
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console.info("STUB :: cast.requestSessionById");
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}
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, setCustomReceivers: (
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receivers: Receiver[]
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, successCallback: SuccessCallback
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, errorCallback: ErrorCallback): void => {
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console.info("STUB :: cast.setCustomReceivers");
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}
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, setPageContext: (win: Window): void => {
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console.info("STUB :: cast.setPageContext");
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}
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, setReceiverDisplayStatus: (sessionId: string): void => {
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console.info("STUB :: cast.setReceiverDisplayStatus");
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}
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, unescape: (escaped: string): string => {
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return unescape(escaped);
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}
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}
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onMessage(message => {
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switch (message.subject) {
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/**
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* Cast destination found (serviceUp). Set the API availability
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* property and call the page event function (__onGCastApiAvailable).
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*/
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case "shim:/serviceUp": {
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const receiver = message.data;
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if (receiverList.find(r => r.id === receiver.id)) {
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break;
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}
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receiverList.push(receiver);
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// Notify listeners of new cast destination
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apiConfig.receiverListener(ReceiverAvailability.AVAILABLE);
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break;
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};
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/**
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* Cast destination lost (serviceDown). Remove from the receiver list
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* and update availability state.
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*/
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case "shim:/serviceDown": {
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receiverList = receiverList.filter(
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receiver => receiver.id !== message.data.id);
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if (receiverList.length === 0) {
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apiConfig.receiverListener(
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ReceiverAvailability.UNAVAILABLE);
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}
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break;
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};
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case "shim:/selectReceiver": {
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console.info("fx_cast (Debug): Selected receiver");
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const selectedReceiver = new Receiver(
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message.data.receiver.id
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, message.data.receiver.friendlyName);
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(selectedReceiver as any)._address = message.data.receiver.address;
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(selectedReceiver as any)._port = message.data.receiver.port;
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function createSession () {
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sessionList.push(new Session(
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sessionList.length.toString() // sessionId
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, apiConfig.sessionRequest.appId // appId
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, selectedReceiver.friendlyName // displayName
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, [] // appImages
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, selectedReceiver // receiver
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, (session: Session) => {
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sendMessageResponse({
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subject: "popup:/close"
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});
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apiConfig.sessionListener(session);
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sessionRequestInProgress = false;
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sessionSuccessCallback(session, message.data.selectedMedia);
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}));
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}
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// If an existing session is active, stop it and start new one
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if (sessionList.length) {
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const lastSession = sessionList[sessionList.length - 1];
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if (lastSession.status !== SessionStatus.STOPPED) {
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lastSession.stop(createSession, null);
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}
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} else {
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createSession();
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}
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break;
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};
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/**
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* Popup is ready to receive data to populate the cast destination
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* chooser.
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*/
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case "shim:/popupReady": {
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sendMessageResponse({
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subject: "popup:/populateReceiverList"
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, data: {
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receivers: receiverList
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, selectedMedia: apiConfig._selectedMedia
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}
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});
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break;
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};
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/**
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* Popup closed before session established.
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*/
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case "shim:/popupClosed": {
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if (sessionRequestInProgress) {
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sessionRequestInProgress = false;
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sessionErrorCallback(new Error_(ErrorCode.CANCEL));
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}
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break;
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}
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}
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});
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