| 1 |
- {"ast":null,"code":"import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport debounce from '../utils/debounce';\nimport useForkRef from '../utils/useForkRef';\n\nfunction getStyleValue(computedStyle, property) {\n return parseInt(computedStyle[property], 10) || 0;\n}\n\nvar useEnhancedEffect = typeof window !== 'undefined' ? 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The layout is unstable.', 'TextareaAutosize limits the number of renders to prevent an infinite loop.'].join('\\n'));\n }\n }\n\n return prevState;\n });\n }, [rowsMax, rowsMin, props.placeholder]);\n React.useEffect(function () {\n var handleResize = debounce(function () {\n renders.current = 0;\n syncHeight();\n });\n window.addEventListener('resize', handleResize);\n return function () {\n handleResize.clear();\n window.removeEventListener('resize', handleResize);\n };\n }, [syncHeight]);\n useEnhancedEffect(function () {\n syncHeight();\n });\n React.useEffect(function () {\n renders.current = 0;\n }, [value]);\n\n var handleChange = function handleChange(event) {\n renders.current = 0;\n\n if (!isControlled) {\n syncHeight();\n }\n\n if (onChange) {\n onChange(event);\n }\n };\n\n return /*#__PURE__*/React.createElement(React.Fragment, null, /*#__PURE__*/React.createElement(\"textarea\", _extends({\n value: value,\n onChange: handleChange,\n ref: handleRef // Apply the rows prop to get a \"correct\" first SSR paint\n ,\n rows: rowsMin,\n style: _extends({\n height: state.outerHeightStyle,\n // Need a large enough difference to allow scrolling.\n // This prevents infinite rendering loop.\n overflow: state.overflow ? 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React.useLayoutEffect : React.useEffect;\nvar styles = {\n /* Styles applied to the shadow textarea element. */\n shadow: {\n // Visibility needed to hide the extra text area on iPads\n visibility: 'hidden',\n // Remove from the content flow\n position: 'absolute',\n // Ignore the scrollbar width\n overflow: 'hidden',\n height: 0,\n top: 0,\n left: 0,\n // Create a new layer, increase the isolation of the computed values\n transform: 'translateZ(0)'\n }\n};\nvar TextareaAutosize = /*#__PURE__*/React.forwardRef(function TextareaAutosize(props, ref) {\n var onChange = props.onChange,\n rows = props.rows,\n rowsMax = props.rowsMax,\n _props$rowsMin = props.rowsMin,\n rowsMinProp = _props$rowsMin === void 0 ? 1 : _props$rowsMin,\n style = props.style,\n value = props.value,\n other = _objectWithoutProperties(props, [\"onChange\", \"rows\", \"rowsMax\", \"rowsMin\", \"style\", \"value\"]);\n\n var rowsMin = rows || rowsMinProp;\n\n var _React$useRef = React.useRef(value != null),\n isControlled = _React$useRef.current;\n\n var inputRef = React.useRef(null);\n var handleRef = useForkRef(ref, inputRef);\n var shadowRef = React.useRef(null);\n var renders = React.useRef(0);\n\n var _React$useState = React.useState({}),\n state = _React$useState[0],\n setState = _React$useState[1];\n\n var syncHeight = React.useCallback(function () {\n var input = inputRef.current;\n var computedStyle = window.getComputedStyle(input);\n var inputShallow = shadowRef.current;\n inputShallow.style.width = computedStyle.width;\n inputShallow.value = input.value || props.placeholder || 'x';\n\n if (inputShallow.value.slice(-1) === '\\n') {\n // Certain fonts which overflow the line height will cause the textarea\n // to report a different scrollHeight depending on whether the last line\n // is empty. Make it non-empty to avoid this issue.\n inputShallow.value += ' ';\n }\n\n var boxSizing = computedStyle['box-sizing'];\n var padding = getStyleValue(computedStyle, 'padding-bottom') + getStyleValue(computedStyle, 'padding-top');\n var border = getStyleValue(computedStyle, 'border-bottom-width') + getStyleValue(computedStyle, 'border-top-width'); // The height of the inner content\n\n var innerHeight = inputShallow.scrollHeight - padding; // Measure height of a textarea with a single row\n\n inputShallow.value = 'x';\n var singleRowHeight = inputShallow.scrollHeight - padding; // The height of the outer content\n\n var outerHeight = innerHeight;\n\n if (rowsMin) {\n outerHeight = Math.max(Number(rowsMin) * singleRowHeight, outerHeight);\n }\n\n if (rowsMax) {\n outerHeight = Math.min(Number(rowsMax) * singleRowHeight, outerHeight);\n }\n\n outerHeight = Math.max(outerHeight, singleRowHeight); // Take the box sizing into account for applying this value as a style.\n\n var outerHeightStyle = outerHeight + (boxSizing === 'border-box' ? padding + border : 0);\n var overflow = Math.abs(outerHeight - innerHeight) <= 1;\n setState(function (prevState) {\n // Need a large enough difference to update the height.\n // This prevents infinite rendering loop.\n if (renders.current < 20 && (outerHeightStyle > 0 && Math.abs((prevState.outerHeightStyle || 0) - outerHeightStyle) > 1 || prevState.overflow !== overflow)) {\n renders.current += 1;\n return {\n overflow: overflow,\n outerHeightStyle: outerHeightStyle\n };\n }\n\n if (process.env.NODE_ENV !== 'production') {\n if (renders.current === 20) {\n console.error(['Material-UI: Too many re-renders. The layout is unstable.', 'TextareaAutosize limits the number of renders to prevent an infinite loop.'].join('\\n'));\n }\n }\n\n return prevState;\n });\n }, [rowsMax, rowsMin, props.placeholder]);\n React.useEffect(function () {\n var handleResize = debounce(function () {\n renders.current = 0;\n syncHeight();\n });\n window.addEventListener('resize', handleResize);\n return function () {\n handleResize.clear();\n window.removeEventListener('resize', handleResize);\n };\n }, [syncHeight]);\n useEnhancedEffect(function () {\n syncHeight();\n });\n React.useEffect(function () {\n renders.current = 0;\n }, [value]);\n\n var handleChange = function handleChange(event) {\n renders.current = 0;\n\n if (!isControlled) {\n syncHeight();\n }\n\n if (onChange) {\n onChange(event);\n }\n };\n\n return /*#__PURE__*/React.createElement(React.Fragment, null, /*#__PURE__*/React.createElement(\"textarea\", _extends({\n value: value,\n onChange: handleChange,\n ref: handleRef // Apply the rows prop to get a \"correct\" first SSR paint\n ,\n rows: rowsMin,\n style: _extends({\n height: state.outerHeightStyle,\n // Need a large enough difference to allow scrolling.\n // This prevents infinite rendering loop.\n overflow: state.overflow ? 'hidden' : null\n }, style)\n }, other)), /*#__PURE__*/React.createElement(\"textarea\", {\n \"aria-hidden\": true,\n className: props.className,\n readOnly: true,\n ref: shadowRef,\n tabIndex: -1,\n style: _extends({}, styles.shadow, style)\n }));\n});\nprocess.env.NODE_ENV !== \"production\" ? TextareaAutosize.propTypes = {\n // ----------------------------- Warning --------------------------------\n // | These PropTypes are generated from the TypeScript type definitions |\n // | To update them edit the d.ts file and run \"yarn proptypes\" |\n // ----------------------------------------------------------------------\n\n /**\n * @ignore\n */\n className: PropTypes.string,\n\n /**\n * @ignore\n */\n onChange: PropTypes.func,\n\n /**\n * @ignore\n */\n placeholder: PropTypes.string,\n\n /**\n * Use `rowsMin` instead. The prop will be removed in v5.\n *\n * @deprecated\n */\n rows: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),\n\n /**\n * Maximum number of rows to display.\n */\n rowsMax: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),\n\n /**\n * Minimum number of rows to display.\n */\n rowsMin: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),\n\n /**\n * @ignore\n */\n style: PropTypes.object,\n\n /**\n * @ignore\n */\n value: PropTypes.oneOfType([PropTypes.arrayOf(PropTypes.string), PropTypes.number, PropTypes.string])\n} : void 0;\nexport default TextareaAutosize;"]},"metadata":{},"sourceType":"module"}
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