Cleanup
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211b41680b
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19ff216714
1 changed files with 18 additions and 22 deletions
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@ -116,8 +116,6 @@ const advertiseCode = (cast: Cast) => {
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const namespace = "urn:x-cast:pair-request";
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const options = new cast.framework.CastReceiverOptions();
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// Do not automatically close the connection when the sender disconnects.
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options.maxInactivity = 3600; /* 1 hour */
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// We don't use the media features of the Cast SDK.
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options.skipPlayersLoad = true;
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// Do not stop the casting if the receiver is unreachable. A user should be
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@ -132,23 +130,10 @@ const advertiseCode = (cast: Cast) => {
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// Reply with the code that we have if anyone asks over Chromecast.
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const incomingMessageListener = ({ senderId, data }: ListenerProps) => {
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// TODO (MR): shutdown
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const restart = (reason: string) => {
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log.error(`Restarting app: ${reason}`);
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// context.stop will close the tab but it'll get reopened again
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// immediately since the client app will reconnect in the scenarios
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// where we're calling this function.
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context.stop();
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};
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// The collection ID with which we paired. If we get another connection
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// request for a different collection ID, restart the app to allow them
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// to reconnect using a freshly generated pairing code.
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//
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// If the request does not have a collectionID, forego this check.
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// The collection ID with is currently paired (if any).
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const pairedCollectionID = castReceiver.collectionID?.();
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// The collection ID in the request (if any).
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const collectionID =
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data &&
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typeof data == "object" &&
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@ -156,18 +141,28 @@ const advertiseCode = (cast: Cast) => {
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? data["collectionID"]
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: undefined;
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// If the request does not have a collectionID (or if we're not showing
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// anything currently), forego this check.
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if (collectionID && pairedCollectionID) {
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// If we get another connection request for a _different_ collection
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// ID, stop the app to allow the second device to reconnect using a
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// freshly generated pairing code.
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if (pairedCollectionID != collectionID) {
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restart(
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`incoming request for a new collection ${collectionID}`,
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);
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log.info(`request for a new collection ${collectionID}`);
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context.stop();
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} else {
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// Duplicate request for same collection that we're already
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// showing. Ignore.
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}
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return;
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}
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const code = castReceiver.pairingCode?.();
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if (!code) {
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// No code, but if we're already showing a collection, then ignore.
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if (pairedCollectionID) return;
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// Our caller waits until it has a pairing code before it calls
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// `advertiseCode`, but there is still an edge case where we can
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// find ourselves without a pairing code:
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@ -178,8 +173,9 @@ const advertiseCode = (cast: Cast) => {
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// 2. But before that happens, someone connects.
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//
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// The window where this can happen is short, so if we do find
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// ourselves in this scenario,
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restart("we got a pairing request when refreshing pairing codes");
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// ourselves in this scenario, just shutdown.
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log.error("got pairing request when refreshing pairing codes");
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context.stop();
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return;
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}
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