excalidraw/packages/excalidraw/actions/actionTextAutoResize.ts

54 lines
1.6 KiB
TypeScript

import { getFontString } from "@excalidraw/common";
import { newElementWith } from "@excalidraw/element/mutateElement";
import { measureText } from "@excalidraw/element/textMeasurements";
import { isTextElement } from "@excalidraw/element/typeChecks";
import { getSelectedElements } from "../scene";
import { CaptureUpdateAction } from "../store";
import { register } from "./register";
import type { AppClassProperties } from "../types";
export const actionTextAutoResize = register({
name: "autoResize",
label: "labels.autoResize",
icon: null,
trackEvent: { category: "element" },
predicate: (elements, appState, _: unknown, app: AppClassProperties) => {
const selectedElements = getSelectedElements(elements, appState);
return (
selectedElements.length === 1 &&
isTextElement(selectedElements[0]) &&
!selectedElements[0].autoResize
);
},
perform: (elements, appState, _, app) => {
const selectedElements = getSelectedElements(elements, appState);
return {
appState,
elements: elements.map((element) => {
if (element.id === selectedElements[0].id && isTextElement(element)) {
const metrics = measureText(
element.originalText,
getFontString(element),
element.lineHeight,
);
return newElementWith(element, {
autoResize: true,
width: metrics.width,
height: metrics.height,
text: element.originalText,
});
}
return element;
}),
captureUpdate: CaptureUpdateAction.IMMEDIATELY,
};
},
});