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Syncing ephemeral element updates

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Marcel Mraz 2025-01-20 15:07:37 +01:00
parent c57249481e
commit 310a9ae4e0
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GPG key ID: 4EBD6E62DC830CD2
60 changed files with 1104 additions and 906 deletions
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24
packages/excalidraw/sync/protocol.ts
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@ -1,11 +1,12 @@
import type { StoreIncrement } from "../store";
import type { StoreChange, StoreDelta } from "../store";
import type { DTO } from "../utility-types";
export type CLIENT_INCREMENT = DTO<StoreIncrement>;
export type DELTA = DTO<StoreDelta>;
export type CHANGE = DTO<StoreChange>;
export type RELAY_PAYLOAD = { buffer: ArrayBuffer };
export type RELAY_PAYLOAD = CHANGE;
export type PUSH_PAYLOAD = DELTA;
export type PULL_PAYLOAD = { lastAcknowledgedVersion: number };
export type PUSH_PAYLOAD = CLIENT_INCREMENT;
export type CHUNK_INFO = {
id: string;
@ -25,22 +26,21 @@ export type CLIENT_MESSAGE = { chunkInfo: CHUNK_INFO } & (
| { type: "push"; payload: PUSH_PAYLOAD }
);
export type SERVER_INCREMENT = { id: string; version: number; payload: string };
export type SERVER_DELTA = { id: string; version: number; payload: string };
export type SERVER_MESSAGE =
| {
type: "relayed";
// CFDO: should likely be just elements
// payload: { increments: Array<CLIENT_INCREMENT> } | RELAY_PAYLOAD;
payload: RELAY_PAYLOAD;
}
| { type: "acknowledged"; payload: { increments: Array<SERVER_INCREMENT> } }
| { type: "acknowledged"; payload: { deltas: Array<SERVER_DELTA> } }
| {
type: "rejected";
payload: { increments: Array<CLIENT_INCREMENT>; message: string };
payload: { deltas: Array<DELTA>; message: string };
};
export interface IncrementsRepository {
save(increment: CLIENT_INCREMENT): SERVER_INCREMENT | null;
getAllSinceVersion(version: number): Array<SERVER_INCREMENT>;
export interface DeltasRepository {
save(delta: DELTA): SERVER_DELTA | null;
getAllSinceVersion(version: number): Array<SERVER_DELTA>;
getLastVersion(): number;
}