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ENG-747 - Enhance Tldraw component to track last actions in history #383

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merged 1 commit into from
Aug 27, 2025
Merged

ENG-747 - Enhance Tldraw component to track last actions in history #383

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14 changes: 14 additions & 0 deletions apps/roam/src/components/canvas/Tldraw.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -88,6 +88,8 @@ import { TLDRAW_DATA_ATTRIBUTE } from "./tldrawStyles";
import { AUTO_CANVAS_RELATIONS_KEY } from "~/data/userSettings";
import { getSetting } from "~/utils/extensionSettings";
import { isPluginTimerReady, waitForPluginTimer } from "~/utils/pluginTimer";
import { HistoryEntry } from "@tldraw/store";
import { TLRecord } from "@tldraw/tlschema";

declare global {
interface Window {
Expand All @@ -100,12 +102,14 @@ export type DiscourseContextType = {
// { [Relation.Label] => DiscourseRelation[] }
relations: Record<string, DiscourseRelation[]>;
lastAppEvent: string;
lastActions: HistoryEntry<TLRecord>[];
};

export const discourseContext: DiscourseContextType = {
nodes: {},
relations: {},
lastAppEvent: "",
lastActions: [],
};

const DEFAULT_WIDTH = 160;
Expand All @@ -121,6 +125,9 @@ const TldrawCanvas = ({ title }: { title: string }) => {
const appRef = useRef<TldrawApp | null>(null);
const lastInsertRef = useRef<VecModel>();
const containerRef = useRef<HTMLDivElement>(null);
const lastActionsRef = useRef<HistoryEntry<TLRecord>[]>(
discourseContext.lastActions,
);

const [maximized, setMaximized] = useState(false);
const [isConvertToDialogOpen, setConvertToDialogOpen] = useState(false);
Expand Down Expand Up @@ -499,6 +506,7 @@ const TldrawCanvas = ({ title }: { title: string }) => {
type: "Tldraw Error",
context: {
title: title,
lastActions: lastActionsRef.current,
},
}).catch(() => {});

Expand Down Expand Up @@ -600,6 +608,12 @@ const TldrawCanvas = ({ title }: { title: string }) => {

appRef.current = app;

app.on("change", (entry) => {
lastActionsRef.current.push(entry);
if (lastActionsRef.current.length > 10)
lastActionsRef.current.shift();
});

app.on("event", (event) => {
const e = event as TLPointerEventInfo;

Expand Down