feat: fractional indexing (#7359)

* 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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@ -55,6 +55,7 @@ export type ElementConstructorOpts = MarkOptional<
| "angle"
| "groupIds"
| "frameId"
| "index"
| "boundElements"
| "seed"
| "version"
@ -89,6 +90,7 @@ const _newElementBase = <T extends ExcalidrawElement>(
angle = 0,
groupIds = [],
frameId = null,
index = null,
roundness = null,
boundElements = null,
link = null,
@ -114,6 +116,7 @@ const _newElementBase = <T extends ExcalidrawElement>(
opacity,
groupIds,
frameId,
index,
roundness,
seed: rest.seed ?? randomInteger(),
version: rest.version || 1,