@navikt/ds-react
Version:
React components from the Norwegian Labour and Welfare Administration.
183 lines • 8.99 kB
JavaScript
var __rest = (this && this.__rest) || function (s, e) {
var t = {};
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
t[p] = s[p];
if (s != null && typeof Object.getOwnPropertySymbols === "function")
for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))
t[p[i]] = s[p[i]];
}
return t;
};
/* https://github.com/mui/material-ui/blob/master/packages/mui-base/src/TextareaAutosize/TextareaAutosize.tsx */
import React, { forwardRef, useEffect, useRef, useState } from "react";
import ReactDOM from "react-dom";
import { useClientLayoutEffect } from "../util/hooks/index.js";
import debounce from "./debounce.js";
import { useMergeRefs } from "./hooks/useMergeRefs.js";
import { ownerWindow } from "./owner.js";
const checkState = (prevState, newState, renders) => {
const { outerHeightStyle, overflow } = newState;
// Need a large enough difference to update the height.
// This prevents infinite rendering loop.
if (renders.current < 20 &&
((outerHeightStyle > 0 &&
Math.abs((prevState.outerHeightStyle || 0) - outerHeightStyle) > 1) ||
prevState.overflow !== overflow)) {
renders.current += 1;
return newState;
}
if (process.env.NODE_ENV !== "production" && renders.current === 20) {
console.error("Textarea: Too many re-renders. The layout is unstable. TextareaAutosize limits the number of renders to prevent an infinite loop.");
}
return prevState;
};
function getStyleValue(value) {
return parseInt(value, 10) || 0;
}
const TextareaAutosize = forwardRef((_a, ref) => {
var _b, _c;
var { className, onChange, maxRows, minRows = 1, autoScrollbar, style, value } = _a, other = __rest(_a, ["className", "onChange", "maxRows", "minRows", "autoScrollbar", "style", "value"]);
const { current: isControlled } = useRef(value != null);
const inputRef = useRef(null);
const handleRef = useMergeRefs(inputRef, ref);
const shadowRef = useRef(null);
const renders = useRef(0);
const [state, setState] = useState({ outerHeightStyle: 0 });
const getUpdatedState = React.useCallback(() => {
const input = inputRef.current;
const containerWindow = ownerWindow(input);
const computedStyle = containerWindow.getComputedStyle(input);
// If input's width is shrunk and it's not visible, don't sync height.
if (computedStyle.width === "0px") {
return { outerHeightStyle: 0 };
}
const inputShallow = shadowRef.current;
inputShallow.style.width = computedStyle.width;
inputShallow.value = input.value || other.placeholder || "x";
if (inputShallow.value.slice(-1) === "\n") {
// Certain fonts which overflow the line height will cause the textarea
// to report a different scrollHeight depending on whether the last line
// is empty. Make it non-empty to avoid this issue.
inputShallow.value += " ";
}
const boxSizing = computedStyle.boxSizing;
const padding = getStyleValue(computedStyle.paddingBottom) +
getStyleValue(computedStyle.paddingTop);
const border = getStyleValue(computedStyle.borderBottomWidth) +
getStyleValue(computedStyle.borderTopWidth);
// The height of the inner content
const innerHeight = inputShallow.scrollHeight - padding;
// Measure height of a textarea with a single row
inputShallow.value = "x";
const singleRowHeight = inputShallow.scrollHeight - padding;
// The height of the outer content
let outerHeight = innerHeight;
if (minRows) {
outerHeight = Math.max(Number(minRows) * singleRowHeight, outerHeight);
}
if (maxRows) {
outerHeight = Math.min(Number(maxRows) * singleRowHeight, outerHeight);
}
outerHeight = Math.max(outerHeight, singleRowHeight);
// Take the box sizing into account for applying this value as a style.
const outerHeightStyle = outerHeight + (boxSizing === "border-box" ? padding + border : 0);
const overflow = Math.abs(outerHeight - innerHeight) <= 1;
return { outerHeightStyle, overflow };
}, [maxRows, minRows, other.placeholder]);
const syncHeight = () => {
const newState = getUpdatedState();
if (isEmpty(newState)) {
return;
}
setState((prevState) => checkState(prevState, newState, renders));
};
useClientLayoutEffect(() => {
const syncHeightWithFlushSync = () => {
const newState = getUpdatedState();
if (isEmpty(newState)) {
return;
}
// In React 18, state updates in a ResizeObserver's callback are happening after
// the paint, this leads to an infinite rendering.
// Using flushSync ensures that the state is updated before the next paint.
// Related issue - https://github.com/facebook/react/issues/24331
ReactDOM.flushSync(() => {
setState((prevState) => checkState(prevState, newState, renders));
});
};
const handleResize = debounce(() => {
var _a, _b, _c;
renders.current = 0;
if (((_a = inputRef.current) === null || _a === void 0 ? void 0 : _a.style.height) || ((_b = inputRef.current) === null || _b === void 0 ? void 0 : _b.style.width)) {
// User has resized manually
if (((_c = inputRef.current) === null || _c === void 0 ? void 0 : _c.style.overflow) === "hidden") {
setState((oldState) => (Object.assign(Object.assign({}, oldState), { overflow: false }))); // The state update isn't important, we just need to trigger a rerender
}
return;
}
syncHeightWithFlushSync();
}, 166, true);
const input = inputRef.current;
const containerWindow = ownerWindow(input);
containerWindow.addEventListener("resize", handleResize);
let resizeObserver;
if (typeof ResizeObserver !== "undefined") {
resizeObserver = new ResizeObserver(handleResize);
resizeObserver.observe(input);
}
return () => {
handleResize.clear();
containerWindow.removeEventListener("resize", handleResize);
if (resizeObserver) {
resizeObserver.disconnect();
}
};
}, [getUpdatedState]);
useClientLayoutEffect(() => {
syncHeight();
});
// biome-ignore lint/correctness/useExhaustiveDependencies: Since value is an external prop, we want to reset the renders on every time it changes, even when it is undefined or empty.
useEffect(() => {
renders.current = 0;
}, [value]);
const handleChange = (event) => {
renders.current = 0;
if (!isControlled) {
syncHeight();
}
if (onChange) {
onChange(event);
}
};
const mainStyle = Object.assign({ "--__ac-textarea-height": state.outerHeightStyle + "px", "--__axc-textarea-height": state.outerHeightStyle + "px",
// Need a large enough difference to allow scrolling.
// This prevents infinite rendering loop.
overflow: state.overflow &&
!autoScrollbar &&
!((_b = inputRef.current) === null || _b === void 0 ? void 0 : _b.style.height) &&
!((_c = inputRef.current) === null || _c === void 0 ? void 0 : _c.style.width)
? "hidden"
: undefined }, style);
return (React.createElement(React.Fragment, null,
React.createElement("textarea", Object.assign({ value: value, onChange: handleChange, ref: handleRef,
// Apply the rows prop to get a "correct" first SSR paint
rows: minRows, style: mainStyle }, other, { className: className })),
React.createElement("textarea", { "aria-hidden": true, className: className, readOnly: true, ref: shadowRef, tabIndex: -1, style: Object.assign({
// Visibility needed to hide the extra text area on iPads
visibility: "hidden",
// Remove from the content flow
position: "absolute",
// Ignore the scrollbar width
overflow: "hidden", height: 0, top: 0, left: 0,
// Create a new layer, increase the isolation of the computed values
transform: "translateZ(0)" }, style) })));
});
function isEmpty(obj) {
return (obj === undefined ||
obj === null ||
Object.keys(obj).length === 0 ||
(obj.outerHeightStyle === 0 && !obj.overflow));
}
export default TextareaAutosize;
//# sourceMappingURL=TextareaAutoSize.js.map