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support async callback in iterateResponseStateEvents

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This commit is contained in:
Bruno Windels 2022-07-22 14:15:26 +02:00
parent c8a8eb10b5
commit 22831e710c
1 changed files with 14 additions and 3 deletions
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17
src/matrix/room/common.ts
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@ -53,12 +53,20 @@ type RoomResponse = {
} }
/** iterates over any state events in a sync room response, in the order that they should be applied (from older to younger events) */ /** iterates over any state events in a sync room response, in the order that they should be applied (from older to younger events) */
export function iterateResponseStateEvents(roomResponse: RoomResponse, callback: (StateEvent) => void) { export function iterateResponseStateEvents(roomResponse: RoomResponse, callback: (StateEvent) => Promise<void> | void): Promise<void> | void {
let promises: Promise<void>[] | undefined = undefined;
const callCallback = stateEvent => {
const result = callback(stateEvent);
if (result instanceof Promise) {
promises = promises ?? [];
promises.push(result);
}
};
// first iterate over state events, they precede the timeline // first iterate over state events, they precede the timeline
const stateEvents = roomResponse.state?.events; const stateEvents = roomResponse.state?.events;
if (stateEvents) { if (stateEvents) {
for (let i = 0; i < stateEvents.length; i++) { for (let i = 0; i < stateEvents.length; i++) {
callback(stateEvents[i]); callCallback(stateEvents[i]);
} }
} }
// now see if there are any state events within the timeline // now see if there are any state events within the timeline
@ -67,10 +75,13 @@ export function iterateResponseStateEvents(roomResponse: RoomResponse, callback:
for (let i = 0; i < timelineEvents.length; i++) { for (let i = 0; i < timelineEvents.length; i++) {
const event = timelineEvents[i]; const event = timelineEvents[i];
if (typeof event.state_key === "string") { if (typeof event.state_key === "string") {
callback(event); callCallback(event);
} }
} }
} }
if (promises) {
return Promise.all(promises);
}
} }
export function tests() { export function tests() {