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Implement undo/redo example with tldraw #695

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Implement undo/redo example with tldraw #695

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2 changes: 1 addition & 1 deletion examples/react-tldraw/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,7 @@
"react": "^18.2.0",
"react-dom": "^18.2.0",
"unique-names-generator": "^4.7.1",
"yorkie-js-sdk": "^0.4.7"
"yorkie-js-sdk": "^0.4.9"
},
"devDependencies": {
"@types/lodash": "^4.14.198",
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21 changes: 18 additions & 3 deletions examples/react-tldraw/src/hooks/useMultiplayerState.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -153,6 +153,18 @@ export function useMultiplayerState(roomId: string) {
false,
);

const onUndo = () => {
if (doc.history.canUndo()) {
doc.history.undo();
}
}

const onRedo = () => {
if (doc.history.canRedo()) {
doc.history.redo();
}
}

// Document Changes --------

useEffect(() => {
Expand Down Expand Up @@ -253,7 +265,8 @@ export function useMultiplayerState(roomId: string) {

// 04. Subscribe document event and handle changes.
doc.subscribe((event) => {
if (event.type === 'remote-change') {
const acceptTypeList = ['remote-change', 'local-change']
if (acceptTypeList.includes(event.type)) {
handleChanges();
}
});
Expand Down Expand Up @@ -292,7 +305,9 @@ export function useMultiplayerState(roomId: string) {
return {
onMount,
onChangePage,
loading,
onChangePresence,
onUndo,
onRedo,
loading,
};
}
}
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As always, file newline here.

12 changes: 6 additions & 6 deletions package-lock.json
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