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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>
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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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16
packages/excalidraw/data/transform.ts
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@ -44,9 +44,16 @@ import {
VerticalAlign,
} from "../element/types";
import { MarkOptional } from "../utility-types";
import { assertNever, cloneJSON, getFontString, toBrandedType } from "../utils";
import {
arrayToMap,
assertNever,
cloneJSON,
getFontString,
toBrandedType,
} from "../utils";
import { getSizeFromPoints } from "../points";
import { randomId } from "../random";
import { syncInvalidIndices } from "../fractionalIndex";
export type ValidLinearElement = {
type: "arrow" | "line";
@ -457,12 +464,15 @@ class ElementStore {
this.excalidrawElements.set(ele.id, ele);
};
getElements = () => {
return Array.from(this.excalidrawElements.values());
return syncInvalidIndices(Array.from(this.excalidrawElements.values()));
};
getElementsMap = () => {
return toBrandedType<NonDeletedSceneElementsMap>(this.excalidrawElements);
return toBrandedType<NonDeletedSceneElementsMap>(
arrayToMap(this.getElements()),
);
};
getElement = (id: string) => {