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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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6
packages/excalidraw/actions/actionDuplicateSelection.tsx
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@ -31,6 +31,7 @@ import {
excludeElementsInFramesFromSelection,
getSelectedElements,
} from "../scene/selection";
import { syncMovedIndices } from "../fractionalIndex";
export const actionDuplicateSelection = register({
name: "duplicateSelection",
@ -90,6 +91,7 @@ const duplicateElements = (
const newElements: ExcalidrawElement[] = [];
const oldElements: ExcalidrawElement[] = [];
const oldIdToDuplicatedId = new Map();
const duplicatedElementsMap = new Map<string, ExcalidrawElement>();
const duplicateAndOffsetElement = (element: ExcalidrawElement) => {
const newElement = duplicateElement(
@ -101,6 +103,7 @@ const duplicateElements = (
y: element.y + GRID_SIZE / 2,
},
);
duplicatedElementsMap.set(newElement.id, newElement);
oldIdToDuplicatedId.set(element.id, newElement.id);
oldElements.push(element);
newElements.push(newElement);
@ -238,9 +241,10 @@ const duplicateElements = (
}
// step (3)
const finalElements = finalElementsReversed.reverse();
syncMovedIndices(finalElements, arrayToMap([...oldElements, ...newElements]));
// ---------------------------------------------------------------------------
bindTextToShapeAfterDuplication(