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konardkonard
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First working prototype of fit to content height adjustment
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‎example/components/chakra-markdown.tsx‎

Lines changed: 107 additions & 77 deletions
Original file line numberDiff line numberDiff line change
@@ -1,14 +1,19 @@
1-
import React, { useState, useEffect, useRef } from 'react';
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import React, { useState, useEffect, useRef, useCallback } from 'react';
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import { Box, Text, Link as ChakraLink, Heading, useColorModeValue, useColorMode } from '@chakra-ui/react';
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import MonacoEditor from '@monaco-editor/react';
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import ReactMarkdown from 'react-markdown';
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import debounce from 'lodash/debounce';
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function calculateChildrenHeight(parentDiv) {
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let childrenHeight = 0;
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const children = parentDiv.children;
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for (let i = 0; i < children.length; i++) {
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childrenHeight += children[i].offsetHeight;
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}
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return childrenHeight;
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}
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const ChakraMarkdown = React.memo<any>(({ content }) => {
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const { colorMode } = useColorMode();
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const editorRef = useRef();
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const monacoTheme = colorMode === 'dark' ? 'vs-dark' : 'vs-light';
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const [editorHeight, setEditorHeight] = useState(0);
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const renderers = {
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h1: ({ children }) => <Heading as="h1" size="xl" mb={2}>{children}</Heading>,
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h2: ({ children }) => <Heading as="h2" size="lg" mb={2}>{children}</Heading>,
@@ -19,32 +24,88 @@ const ChakraMarkdown = React.memo<any>(({ content }) => {
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</ChakraLink>
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),
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code: ({ inline, children, className }) => {
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const { colorMode } = useColorMode();
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const monacoTheme = colorMode === 'dark' ? 'vs-dark' : 'vs-light';
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const codeContainerRef = useRef(null);
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const language = className ? className.replace('language-', '') : 'plaintext';
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const code = String(children).trim();
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const lines = code.split('\n').length;
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const lineHeight = 18; // Approximate height of each line in pixels
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// const horizonalScrollBarHeight = 12;
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// const totalHeight = lines * lineHeight + horizonalScrollBarHeight;
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const defaultHeight = lines * lineHeight;
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// setEditorHeight(`${totalHeight}px`);
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const heightRef = useRef(defaultHeight);
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const [editorHeight, setEditorHeight] = useState(defaultHeight);
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heightRef.current = editorHeight;
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if (inline) {
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return <Text as="code" bg={useColorModeValue("gray.100", "gray.700")} p="1" borderRadius="md">{code}</Text>;
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}
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const updateHeight = useCallback(() => {
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// setEditorHeight(defaultHeight);
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// setTimeout(() => {
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const childrenHeight = calculateChildrenHeight(codeContainerRef.current);
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const scrollHeight = codeContainerRef.current?.scrollHeight;
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const offsetHeight = codeContainerRef.current?.offsetHeight;
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// const newHeight = Math.max(childrenHeight);
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console.log('resize', 'childrenHeight', childrenHeight);
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console.log('resize', 'scrollHeight', scrollHeight);
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console.log('resize', 'clientHeight', codeContainerRef.current.clientHeight);
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console.log('resize', 'offsetHeight', codeContainerRef.current.offsetHeight);
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console.log('resize', 'editorHeight', heightRef.current);
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// if (editorHeight < childrenHeight) {
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// setEditorHeight(childrenHeight);
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// } else {
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// const scrollHeight = codeContainerRef.current?.scrollHeight;
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// const offsetHeight = codeContainerRef.current?.offsetHeight;
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// const newHeight = Math.max(childrenHeight, scrollHeight, offsetHeight);
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// setEditorHeight(newHeight);
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// }
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// if (newHeight > defaultHeight && editorHeight !== newHeight) {
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// }
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if (heightRef.current <= childrenHeight) {
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const newHeight = Math.max(childrenHeight, scrollHeight);
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setEditorHeight(newHeight);
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} else {
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const newHeight = Math.min(childrenHeight, scrollHeight);
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setEditorHeight(newHeight);
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}
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// const scrollHeight = codeContainerRef.current?.scrollHeight;
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// console.log('resize', 'scrollHeight', scrollHeight);
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// setEditorHeight(scrollHeight);
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// }, 0);
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}, [editorHeight]);
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useEffect(() => {
28-
const lines = code.split('\n').length;
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const lineHeight = 18; // Approximate height of each line in pixels
30-
// const horizonalScrollBarHeight = 12;
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// const totalHeight = lines * lineHeight + horizonalScrollBarHeight;
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const totalHeight = lines * lineHeight;
33-
// setEditorHeight(`${totalHeight}px`);
34-
}, [children]);
94+
return () => {
95+
window.removeEventListener('resize', updateHeight);
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console.log('unmount');
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// updateHeight.cancel(); // Cancels the debounced function
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};
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}, []);
35100
return (
36101
<Box
37102
border="1px solid"
38103
borderColor={useColorModeValue("gray.200", "gray.600")}
39104
borderRadius="0"
40105
overflow="visible"
41-
onResize={() => {
42-
console.log('resize');
43-
setEditorHeight(0);
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}}
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my={2}>
106+
my={2}
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>
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<MonacoEditor
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48109
height={editorHeight}
49110
language={language}
50111
theme={monacoTheme}
@@ -55,16 +116,15 @@ const ChakraMarkdown = React.memo<any>(({ content }) => {
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scrollBeyondLastLine: false,
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lineNumbers: "off",
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scrollbar: { vertical: 'hidden' },
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overviewRulerLanes: 0, // Disable the overview ruler
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hideCursorInOverviewRuler: true, // Hide cursor in the ruler
60-
folding: false, // Disable code folding
61-
glyphMargin: false, // Hide the glyph margin (left margin with icons)
62-
renderLineHighlight: 'none', // Disable the current line highlight
119+
overviewRulerLanes: 0,
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hideCursorInOverviewRuler: true,
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folding: false,
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glyphMargin: false,
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renderLineHighlight: 'none',
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cursorWidth: 1,
64125
wordWrap: 'on',
65126
}}
66-
onMount={(editor, monaco) => {
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console.log('mount');
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onMount={(editor) => {
68128
const keepIds = ["editor.action.clipboardCopyAction"];
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const contextmenu = editor.getContribution('editor.contrib.contextmenu');
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const realMethod = contextmenu._getMenuActions;
@@ -75,65 +135,35 @@ const ChakraMarkdown = React.memo<any>(({ content }) => {
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});
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};
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78-
console.log('editor', editor);
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const el = editor._domElement;
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console.log('el', el);
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const codeContainer = el?.querySelector?.('.view-lines');
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console.log('codeContainer', codeContainer);
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84-
85-
let prevLineCount = 0;
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87-
const LINE_HEIGHT = 18;
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const CONTAINER_GUTTER = 10;
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90-
window.addEventListener('resize', debounce(function (event) {
91-
// Your code here
92-
// console.log('Window resized to: ', window.innerWidth, window.innerHeight);
93-
// const lines = code.split('\n').length;
94-
// const lineHeight = 18; // Approximate height of each line in pixels
95-
// // const horizonalScrollBarHeight = 12;
96-
// // const totalHeight = lines * lineHeight + horizonalScrollBarHeight;
97-
// const totalHeight = lines * lineHeight;
98-
// if (editorHeight === totalHeight) {
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// setEditorHeight(totalHeight-lineHeight); // Force change
100-
// } else {
101-
// setEditorHeight(totalHeight);
102-
// }
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104-
if (codeContainer.offsetHeight > 0) {
105-
// el.style.height = codeContainer.offsetHeight + 'px';
106-
const newHeight = codeContainer.offsetHeight;
107-
if (editorHeight !== newHeight) {
108-
setEditorHeight(newHeight);
109-
}
110-
// editor.layout();
111-
}
112-
}, 200));
113-
114-
editor.onDidChangeModelDecorations(() => {
115-
// wait until dom rendered
116-
setTimeout(() => {
117-
console.log('codeContainer.offsetHeight', codeContainer?.offsetHeight);
118-
if (codeContainer.offsetHeight > 0) {
119-
// el.style.height = codeContainer.offsetHeight + 'px';
120-
const newHeight = codeContainer.offsetHeight;
121-
setEditorHeight(newHeight);
122-
// editor.layout();
123-
}
124-
// const height =
125-
// codeContainer.childElementCount > prevLineCount
126-
// ? codeContainer.offsetHeight // unfold
127-
// : codeContainer.childElementCount * LINE_HEIGHT + CONTAINER_GUTTER; // fold
128-
// prevLineCount = codeContainer.childElementCount;
129-
}, 10);
138+
const codeContainer = editor._domElement?.querySelector('.view-lines');
139+
codeContainerRef.current = codeContainer; // Assign the ref
140+
// if (codeContainer?.offsetHeight > 0) {
141+
// setEditorHeight(codeContainer.offsetHeight);
142+
// }
143+
144+
console.log(editor);
145+
146+
window.addEventListener('resize', updateHeight);
147+
148+
const eventHandler = editor.onDidChangeModelDecorations(() => {
149+
const childrenHeight = calculateChildrenHeight(codeContainerRef.current);
150+
const scrollHeight = codeContainerRef.current?.scrollHeight;
151+
const offsetHeight = codeContainerRef.current?.offsetHeight;
152+
const newHeight = Math.max(childrenHeight, scrollHeight, offsetHeight);
153+
console.log('onmount', 'childrenHeight', childrenHeight);
154+
console.log('onmount', 'scrollHeight', scrollHeight);
155+
console.log('onmount', 'clientHeight', codeContainerRef.current.clientHeight);
156+
console.log('onmount', 'offsetHeight', codeContainerRef.current.offsetHeight);
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setEditorHeight(newHeight);
158+
eventHandler.dispose();
130159
});
131160
}}
132161
/>
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</Box>
134163
);
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},
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};
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return <ReactMarkdown components={renderers} children={content} />;
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});
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