excalidraw/src/actions/actionFinalize.tsx
2020-05-12 21:10:11 +02:00

112 lines
3.4 KiB
TypeScript

import { KEYS } from "../keys";
import { isInvisiblySmallElement } from "../element";
import { resetCursor } from "../utils";
import React from "react";
import { ToolButton } from "../components/ToolButton";
import { done } from "../components/icons";
import { t } from "../i18n";
import { register } from "./register";
import { mutateElement } from "../element/mutateElement";
import { isPathALoop } from "../math";
export const actionFinalize = register({
name: "finalize",
perform: (elements, appState) => {
let newElements = elements;
if (window.document.activeElement instanceof HTMLElement) {
window.document.activeElement.blur();
}
const multiPointElement = appState.multiElement
? appState.multiElement
: appState.editingElement?.type === "draw"
? appState.editingElement
: null;
if (multiPointElement) {
// pen and mouse have hover
if (
multiPointElement.type !== "draw" &&
appState.lastPointerDownWith !== "touch"
) {
const { points, lastCommittedPoint } = multiPointElement;
if (
!lastCommittedPoint ||
points[points.length - 1] !== lastCommittedPoint
) {
mutateElement(multiPointElement, {
points: multiPointElement.points.slice(0, -1),
});
}
}
if (isInvisiblySmallElement(multiPointElement)) {
newElements = newElements.slice(0, -1);
}
// If the multi point line closes the loop,
// set the last point to first point.
// This ensures that loop remains closed at different scales.
if (
multiPointElement.type === "line" ||
multiPointElement.type === "draw"
) {
if (isPathALoop(multiPointElement.points)) {
const linePoints = multiPointElement.points;
const firstPoint = linePoints[0];
mutateElement(multiPointElement, {
points: linePoints.map((point, i) =>
i === linePoints.length - 1
? ([firstPoint[0], firstPoint[1]] as const)
: point,
),
});
}
}
if (!appState.elementLocked) {
appState.selectedElementIds[multiPointElement.id] = true;
}
}
if (!appState.elementLocked || !multiPointElement) {
resetCursor();
}
return {
elements: newElements,
appState: {
...appState,
elementType:
appState.elementLocked && multiPointElement
? appState.elementType
: "selection",
draggingElement: null,
multiElement: null,
editingElement: null,
selectedElementIds:
multiPointElement && !appState.elementLocked
? {
...appState.selectedElementIds,
[multiPointElement.id]: true,
}
: appState.selectedElementIds,
},
commitToHistory: false,
};
},
keyTest: (event, appState) =>
(event.key === KEYS.ESCAPE &&
!appState.draggingElement &&
appState.multiElement === null) ||
((event.key === KEYS.ESCAPE || event.key === KEYS.ENTER) &&
appState.multiElement !== null),
PanelComponent: ({ appState, updateData }) => (
<ToolButton
type="button"
icon={done}
title={t("buttons.done")}
aria-label={t("buttons.done")}
onClick={updateData}
visible={appState.multiElement != null}
/>
),
});