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feat: fractional indexing (#7359)

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* Introducing fractional indices as part of `element.index`

* Ensuring invalid fractional indices are always synchronized with the array order

* Simplifying reconciliation based on the fractional indices

* Moving reconciliation inside the `@excalidraw/excalidraw` package

---------

Co-authored-by: Marcel Mraz <marcel@excalidraw.com>
Co-authored-by: dwelle <5153846+dwelle@users.noreply.github.com>
This commit is contained in:
Ryan Di 2024-04-04 20:51:11 +08:00 • committed by GitHub
parent bbdcd30a73
commit 32df5502ae
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50 changed files with 3640 additions and 2047 deletions
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11
excalidraw-app/App.tsx
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@ -14,9 +14,9 @@ import {
} from "../packages/excalidraw/constants";
import { loadFromBlob } from "../packages/excalidraw/data/blob";
import {
ExcalidrawElement,
FileId,
NonDeletedExcalidrawElement,
OrderedExcalidrawElement,
Theme,
} from "../packages/excalidraw/element/types";
import { useCallbackRefState } from "../packages/excalidraw/hooks/useCallbackRefState";
@ -88,7 +88,6 @@ import {
} from "./data/LocalData";
import { isBrowserStorageStateNewer } from "./data/tabSync";
import clsx from "clsx";
import { reconcileElements } from "./collab/reconciliation";
import {
parseLibraryTokensFromUrl,
useHandleLibrary,
@ -108,6 +107,10 @@ import { OverwriteConfirmDialog } from "../packages/excalidraw/components/Overwr
import Trans from "../packages/excalidraw/components/Trans";
import { ShareDialog, shareDialogStateAtom } from "./share/ShareDialog";
import CollabError, { collabErrorIndicatorAtom } from "./collab/CollabError";
import {
RemoteExcalidrawElement,
reconcileElements,
} from "../packages/excalidraw/data/reconcile";
import {
CommandPalette,
DEFAULT_CATEGORIES,
@ -269,7 +272,7 @@ const initializeScene = async (opts: {
},
elements: reconcileElements(
scene?.elements || [],
excalidrawAPI.getSceneElementsIncludingDeleted(),
excalidrawAPI.getSceneElementsIncludingDeleted() as RemoteExcalidrawElement[],
excalidrawAPI.getAppState(),
),
},
@ -581,7 +584,7 @@ const ExcalidrawWrapper = () => {
}, [theme]);
const onChange = (
elements: readonly ExcalidrawElement[],
elements: readonly OrderedExcalidrawElement[],
appState: AppState,
files: BinaryFiles,
) => {