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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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35
src/excalidraw-app/index.tsx
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@ -13,6 +13,7 @@ import { ExcalidrawImperativeAPI } from "../components/App";
import { ErrorDialog } from "../components/ErrorDialog";
import { TopErrorBoundary } from "../components/TopErrorBoundary";
import { APP_NAME, EVENT, TITLE_TIMEOUT, VERSION_TIMEOUT } from "../constants";
import { loadFromBlob } from "../data/blob";
import { DataState, ImportedDataState } from "../data/types";
import {
ExcalidrawElement,
@ -69,9 +70,10 @@ const initializeScene = async (opts: {
}): Promise<ImportedDataState | null> => {
const searchParams = new URLSearchParams(window.location.search);
const id = searchParams.get("id");
const jsonMatch = window.location.hash.match(
const jsonBackendMatch = window.location.hash.match(
/^#json=([0-9]+),([a-zA-Z0-9_-]+)$/,
);
const externalUrlMatch = window.location.hash.match(/^#url=(.*)$/);
const initialData = importFromLocalStorage();
@ -82,7 +84,7 @@ const initializeScene = async (opts: {
);
let roomLinkData = getCollaborationLinkData(window.location.href);
const isExternalScene = !!(id || jsonMatch || roomLinkData);
const isExternalScene = !!(id || jsonBackendMatch || roomLinkData);
if (isExternalScene) {
if (
// don't prompt if scene is empty
@ -95,8 +97,12 @@ const initializeScene = async (opts: {
// Backwards compatibility with legacy url format
if (id) {
scene = await loadScene(id, null, initialData);
} else if (jsonMatch) {
scene = await loadScene(jsonMatch[1], jsonMatch[2], initialData);
} else if (jsonBackendMatch) {
scene = await loadScene(
jsonBackendMatch[1],
jsonBackendMatch[2],
initialData,
);
}
scene.scrollToCenter = true;
if (!roomLinkData) {
@ -119,7 +125,28 @@ const initializeScene = async (opts: {
roomLinkData = null;
window.history.replaceState({}, APP_NAME, window.location.origin);
}
} else if (externalUrlMatch) {
window.history.replaceState({}, APP_NAME, window.location.origin);
const url = externalUrlMatch[1];
try {
const request = await fetch(window.decodeURIComponent(url));
const data = await loadFromBlob(await request.blob(), null);
if (
!scene.elements.length ||
window.confirm(t("alerts.loadSceneOverridePrompt"))
) {
return data;
}
} catch (error) {
return {
appState: {
errorMessage: t("alerts.invalidSceneUrl"),
},
};
}
}
if (roomLinkData) {
return opts.collabAPI.initializeSocketClient(roomLinkData);
} else if (scene) {