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feat: support importing scene from url (#2726)

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David Luzar 2021-03-08 16:37:26 +01:00 • committed by GitHub
parent 9b58efd363
commit beffc290fd
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4 changed files with 50 additions and 7 deletions
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7
src/data/blob.ts
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@ -5,8 +5,9 @@ import { CanvasError } from "../errors";
import { t } from "../i18n";
import { calculateScrollCenter } from "../scene";
import { AppState } from "../types";
import { isValidExcalidrawData } from "./json";
import { restore } from "./restore";
import { ImportedDataState, LibraryData } from "./types";
import { LibraryData } from "./types";
const parseFileContents = async (blob: Blob | File) => {
let contents: string;
@ -85,8 +86,8 @@ export const loadFromBlob = async (
) => {
const contents = await parseFileContents(blob);
try {
const data: ImportedDataState = JSON.parse(contents);
if (data.type !== "excalidraw") {
const data = JSON.parse(contents);
if (!isValidExcalidrawData(data)) {
throw new Error(t("alerts.couldNotLoadInvalidFile"));
}
const result = restore(

14
src/data/json.ts
View file

@ -6,6 +6,7 @@ import { ExcalidrawElement } from "../element/types";
import { AppState } from "../types";
import { loadFromBlob } from "./blob";
import { Library } from "./library";
import { ImportedDataState } from "./types";
export const serializeAsJSON = (
elements: readonly ExcalidrawElement[],
@ -53,6 +54,19 @@ export const loadFromJSON = async (localAppState: AppState) => {
return loadFromBlob(blob, localAppState);
};
export const isValidExcalidrawData = (data?: {
type?: any;
elements?: any;
appState?: any;
}): data is ImportedDataState => {
return (
data?.type === "excalidraw" &&
(!data.elements ||
(Array.isArray(data.elements) &&
(!data.appState || typeof data.appState === "object")))
);
};
export const isValidLibrary = (json: any) => {
return (
typeof json === "object" &&