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hensm
319
ext/src/shim/cast/classes/Session.js
Executable file
319
ext/src/shim/cast/classes/Session.js
Executable file
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"use strict";
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import _Error from "./Error";
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import Volume from "./Volume";
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import Media from "../../media/classes/Media";
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import { SessionStatus
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, ErrorCode
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, VolumeControlType } from "../enums";
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import { onMessage, sendMessage } from "../../messageBridge";
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import uuid from "uuid/v1";
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export default class Session {
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constructor (
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sessionId
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, appId
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, displayName
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, appImages
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, receiver
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, successCallback) {
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this._id = uuid();
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this._messageListeners = new Map();
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this._updateListeners = new Set();
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this._sendMessageCallbacks = new Map();
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this._setReceiverMutedCallbacks = new Map();
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this._setReceiverVolumeLevelCallbacks = new Map();
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this._stopCallbacks = new Map();
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this.sessionId = sessionId;
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this.appId = appId;
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this.appImages = appImages;
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this.displayName = displayName;
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this.receiver = receiver;
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this.media = [];
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this.namespaces = [];
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this.senderApps = [];
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this.status = SessionStatus.DISCONNECTED;
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this.statusText = null;
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this._sendMessage("bridge:bridgesession/initialize", {
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address: receiver._address
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, port: receiver._port
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, appId
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, sessionId
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});
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onMessage(message => {
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// Filter other session messages
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if (message._id && message._id !== this._id) {
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return;
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}
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switch (message.subject) {
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case "shim:session/stopped":
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this.status = SessionStatus.STOPPED;
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this._updateListeners.forEach(listener => listener());
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break;
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case "shim:session/connected":
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this.status = SessionStatus.CONNECTED;
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this.sessionId = message.data.sessionId;
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this.namespaces = message.data.namespaces;
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this.displayName = message.data.displayName;
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this.statusText = message.data.statusText;
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if (successCallback) {
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successCallback(this);
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}
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break;
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case "shim:session/updateStatus":
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if (message.data.volume) {
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if (!this.receiver.volume) {
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const receiverVolume = new Volume(
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message.data.volume.level
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, message.data.volume.muted);
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receiverVolume.controlType = message.data.volume.controlType;
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receiverVolume.stepInterval = message.data.volume.stepInterval;
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this.receiver.volume = receiverVolume;
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} else {
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this.receiver.volume.level = message.data.volume.level;
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this.receiver.volume.muted = message.data.volume.muted;
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}
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}
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break;
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case "shim:session/impl_addMessageListener": {
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const { namespace, data } = message.data;
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this._messageListeners.get(namespace).forEach(
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listener => listener(namespace, data));
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break;
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}
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case "shim:session/impl_sendMessage": {
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const { messageId, error } = message.data;
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const [ successCallback, errorCallback ]
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= this._sendMessageCallbacks.get(messageId)
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if (error && errorCallback) {
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errorCallback(new _Error(ErrorCode.SESSION_ERROR));
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} else if (successCallback) {
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successCallback();
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}
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this._sendMessageCallbacks.delete(messageId);
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break;
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}
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case "shim:session/impl_setReceiverMuted": {
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const { volumeId, error } = message.data;
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const [ successCallback, errorCallback ]
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= this._setReceiverMutedCallbacks.get(volumeId);
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if (error && errorCallback) {
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errorCallback(new _Error(ErrorCode.SESSION_ERROR));
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} else if (successCallback) {
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successCallback();
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}
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break;
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this._setReceiverMutedCallbacks.delete(volumeId);
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}
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case "shim:session/impl_setReceiverVolumeLevel": {
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const { volumeId, error } = message.data;
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const [ successCallback, errorCallback ]
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= this._setReceiverVolumeLevelCallbacks.get(volumeId);
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if (error && errorCallback) {
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errorCallback(new _Error(ErrorCode.SESSION_ERROR));
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} else if (successCallback) {
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successCallback();
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}
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this._setReceiverVolumeLevelCallbacks.delete(volumeId);
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break;
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}
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case "shim:session/impl_stop": {
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const { stopId, error } = message.data;
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const [ successCallback, errorCallback ]
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= this._stopCallbacks.get(stopId);
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if (error && errorCallback) {
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errorCallback(new _Error(ErrorCode.SESSION_ERROR));
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} else {
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this.status = SessionStatus.STOPPED;
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this._updateListeners.forEach(listener => listener());
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if (successCallback) {
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successCallback();
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}
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}
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this._stopCallbacks.delete(stopId);
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break;
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}
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}
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});
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}
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_sendMessage (subject, data = {}) {
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sendMessage({
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subject
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, data
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, _id: this._id
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});
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}
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addMediaListener (listener) {
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console.info("STUB :: Session#addMediaListener")
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}
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addMessageListener (namespace, listener) {
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if (!this._messageListeners.has(namespace)) {
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this._messageListeners.set(namespace, new Set());
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}
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this._messageListeners.get(namespace).add(listener);
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this._sendMessage("bridge:bridgesession/impl_addMessageListener", {
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namespace
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});
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}
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addUpdateListener (listener) {
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this._updateListeners.add(listener);
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}
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leave (successCallback, errorCallback) {
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const id = uuid();
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this._sendMessage("bridge:bridgesession/impl_leave", { id });
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this._leaveCallbacks.set(id, [
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successCallback
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, errorCallback
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]);
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}
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loadMedia (loadRequest, successCallback, errorCallback) {
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this.sendMediaMessage({
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type: "LOAD"
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, requestId: 0
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, media: loadRequest.media
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, activeTrackIds: loadRequest.activeTrackIds || []
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, autoplay: loadRequest.autoplay || false
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, currentTime: loadRequest.currentTime || 0
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, customData: loadRequest.customData || {}
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, repeatMode: "REPEAT_OFF"
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});
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let hasResponded = false;
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this.addMessageListener("urn:x-cast:com.google.cast.media"
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, (namespace, data) => {
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if (hasResponded) return;
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const mediaObject = JSON.parse(data);
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if (mediaObject.status && mediaObject.status.length > 0) {
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hasResponded = true;
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const media = new Media(
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this.sessionId
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, mediaObject.status[0].mediaSessionId
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, this._id);
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media.media = loadRequest.media;
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this.media = [ media ];
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media.play();
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successCallback(media);
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} else {
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errorCallback(new _Error(ErrorCode.SESSION_ERROR));
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}
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})
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}
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queueLoad () {
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console.info("STUB :: Session#queueLoad");
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}
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removeMediaListener (listener) {
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console.info("STUB :: Session#removeMediaListener");
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}
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removeMessageListener (namespace, listener) {
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this._messageListeners.get(namespace).delete(listener);
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}
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removeUpdateListener (namespace, listener) {
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this._updateListeners.delete(listener);
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}
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sendMediaMessage (message) {
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this.sendMessage(
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"urn:x-cast:com.google.cast.media"
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, message
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, () => {}
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, () => {});
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}
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sendMessage (namespace, message, successCallback, errorCallback) {
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const messageId = uuid();
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this._sendMessage("bridge:bridgesession/impl_sendMessage", {
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namespace
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, message
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, messageId
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});
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this._sendMessageCallbacks.set(messageId, [
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successCallback
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, errorCallback
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]);
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}
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setReceiverMuted (muted, successCallback, errorCallback) {
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const volumeId = uuid();
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this._sendMessage("bridge:bridgesession/impl_setReceiverMuted", {
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muted
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, volumeId
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});
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this._setReceiverMutedCallbacks.set(volumeId, [
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successCallback
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, errorCallback
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]);
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}
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setReceiverVolumeLevel (newLevel, successCallback, errorCallback) {
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const volumeId = uuid();
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this._sendMessage("bridge:bridgesession/impl_setReceiverVolumeLevel", {
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newLevel
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, volumeId
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});
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this._setReceiverVolumeLevelCallbacks.set(volumeId, [
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successCallback
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, errorCallback
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]);
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}
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stop (successCallback, errorCallback) {
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const stopId = uuid();
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this._sendMessage("bridge:bridgesession/impl_stop", { stopId });
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this._stopCallbacks.set(stopId, [
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successCallback
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, errorCallback
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]);
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}
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}
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