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Lock drag direction using Shift (#1858)

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Co-authored-by: dwelle <luzar.david@gmail.com>
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Robert van Hoesel 2020-09-11 17:22:40 +02:00 • committed by GitHub
parent d07099aadd
commit c6736fa14e
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5 changed files with 84 additions and 75 deletions
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26
src/element/dragElements.ts
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@ -5,21 +5,41 @@ import { mutateElement } from "./mutateElement";
import { getPerfectElementSize } from "./sizeHelpers";
import Scene from "../scene/Scene";
import { NonDeletedExcalidrawElement } from "./types";
import { PointerDownState } from "../components/App";
export const dragSelectedElements = (
pointerDownState: PointerDownState,
selectedElements: NonDeletedExcalidrawElement[],
pointerX: number,
pointerY: number,
scene: Scene,
lockDirection: boolean = false,
distanceX: number = 0,
distanceY: number = 0,
) => {
const [x1, y1] = getCommonBounds(selectedElements);
const offset = { x: pointerX - x1, y: pointerY - y1 };
selectedElements.forEach((element) => {
let x, y;
if (lockDirection) {
const lockX = lockDirection && distanceX < distanceY;
const lockY = lockDirection && distanceX > distanceY;
const original = pointerDownState.originalElements.get(element.id);
x = lockX && original ? original.x : element.x + offset.x;
y = lockY && original ? original.y : element.y + offset.y;
} else {
x = element.x + offset.x;
y = element.y + offset.y;
}
mutateElement(element, {
x: element.x + offset.x,
y: element.y + offset.y,
x,
y,
});
updateBoundElements(element, {
simultaneouslyUpdated: selectedElements,
});
updateBoundElements(element, { simultaneouslyUpdated: selectedElements });
});
};