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make clearing state for storage more type-safe (#1884)

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This commit is contained in:
David Luzar
2020-07-11 13:09:40 +02:00
committed by GitHub
parent 6428b59ccb
commit 0ee2c15929
4 changed files with 107 additions and 36 deletions
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20
src/data/localStorage.ts
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@@ -1,6 +1,6 @@
import { ExcalidrawElement } from "../element/types";
import { AppState, LibraryItems } from "../types";
import { clearAppStateForLocalStorage } from "../appState";
import { clearAppStateForLocalStorage, getDefaultAppState } from "../appState";
import { restore } from "./restore";
const LOCAL_STORAGE_KEY = "excalidraw";
@@ -111,7 +111,8 @@ export const restoreFromLocalStorage = () => {
if (savedElements) {
try {
elements = JSON.parse(savedElements);
} catch {
} catch (error) {
console.error(error);
// Do nothing because elements array is already empty
}
}
@@ -119,13 +120,14 @@ export const restoreFromLocalStorage = () => {
let appState = null;
if (savedState) {
try {
appState = JSON.parse(savedState) as AppState;
// If we're retrieving from local storage, we should not be collaborating
appState.isCollaborating = false;
appState.collaborators = new Map();
delete appState.width;
delete appState.height;
} catch {
appState = {
...getDefaultAppState(),
...clearAppStateForLocalStorage(
JSON.parse(savedState) as Partial<AppState>,
),
};
} catch (error) {
console.error(error);
// Do nothing because appState is already null
}
}