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Offline support with increments peristed and restored to / from indexedb

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Marcel Mraz 2024-12-12 14:41:20 +01:00
parent 15d2942aaa
commit 040a57f56a
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GPG key ID: 4EBD6E62DC830CD2
19 changed files with 1827 additions and 1104 deletions
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20
packages/excalidraw/sync/protocol.ts
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@ -1,34 +1,34 @@
import type { ElementsChange } from "../change";
import type { StoreIncrement } from "../store";
export type RELAY_PAYLOAD = { buffer: ArrayBuffer };
export type PULL_PAYLOAD = { lastAcknowledgedVersion: number };
export type PUSH_PAYLOAD = {
type: "durable" | "ephemeral";
changes: Array<CLIENT_CHANGE>;
increments: Array<CLIENT_INCREMENT>;
};
export type CLIENT_CHANGE = ElementsChange;
export type CLIENT_INCREMENT = StoreIncrement;
export type CLIENT_MESSAGE =
| { type: "relay"; payload: RELAY_PAYLOAD }
| { type: "pull"; payload: PULL_PAYLOAD }
| { type: "push"; payload: PUSH_PAYLOAD };
export type SERVER_CHANGE = { id: string; version: number; payload: string };
export type SERVER_INCREMENT = { id: string; version: number; payload: string };
export type SERVER_MESSAGE =
| {
type: "relayed";
payload: { changes: Array<CLIENT_CHANGE> } | RELAY_PAYLOAD;
payload: { increments: Array<CLIENT_INCREMENT> } | RELAY_PAYLOAD;
}
| { type: "acknowledged"; payload: { changes: Array<SERVER_CHANGE> } }
| { type: "acknowledged"; payload: { increments: Array<SERVER_INCREMENT> } }
| {
type: "rejected";
payload: { changes: Array<CLIENT_CHANGE>; message: string };
payload: { increments: Array<CLIENT_INCREMENT>; message: string };
};
export interface ChangesRepository {
saveAll(changes: Array<CLIENT_CHANGE>): Array<SERVER_CHANGE>;
getSinceVersion(version: number): Array<SERVER_CHANGE>;
export interface IncrementsRepository {
saveAll(increments: Array<CLIENT_INCREMENT>): Array<SERVER_INCREMENT>;
getSinceVersion(version: number): Array<SERVER_INCREMENT>;
getLastVersion(): number;
}