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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 | 1x 1x 31x 31x 31x 31x 31x 31x 11x 2x 1x 1x 1x 11x 31x 31x 31x 4x 31x 31x 29x 6x 6x 6x 6x 6x 6x 6x 29x 26x 6x 6x 31x 31x 15x 12x 6x 6x 31x 15x 2x 31x 30x 7x 31x 16x 16x 16x 1x 31x | import { useEffect, useState } from 'react';
import { Annotation, EditorState, StateEffect, type Extension } from '@codemirror/state';
import { EditorView, type ViewUpdate } from '@codemirror/view';
import { getDefaultExtensions } from './getDefaultExtensions';
import { getStatistics } from './utils';
import { type ReactCodeMirrorProps } from '.';
const External = Annotation.define<boolean>();
export interface UseCodeMirror extends ReactCodeMirrorProps {
container?: HTMLDivElement | null;
}
const emptyExtensions: Extension[] = [];
export function useCodeMirror(props: UseCodeMirror) {
const {
value,
selection,
onChange,
onStatistics,
onCreateEditor,
onUpdate,
extensions = emptyExtensions,
autoFocus,
theme = 'light',
height = null,
minHeight = null,
maxHeight = null,
width = null,
minWidth = null,
maxWidth = null,
placeholder: placeholderStr = '',
editable = true,
readOnly = false,
indentWithTab: defaultIndentWithTab = true,
basicSetup: defaultBasicSetup = true,
root,
initialState,
} = props;
const [container, setContainer] = useState<HTMLDivElement | null>();
const [view, setView] = useState<EditorView>();
const [state, setState] = useState<EditorState>();
const defaultThemeOption = EditorView.theme({
'&': {
height,
minHeight,
maxHeight,
width,
minWidth,
maxWidth,
},
'& .cm-scroller': {
height: '100% !important',
},
});
const updateListener = EditorView.updateListener.of((vu: ViewUpdate) => {
if (
vu.docChanged &&
typeof onChange === 'function' &&
// Fix echoing of the remote changes:
// If transaction is market as remote we don't have to call `onChange` handler again
!vu.transactions.some((tr) => tr.annotation(External))
) {
const doc = vu.state.doc;
const value = doc.toString();
onChange(value, vu);
}
onStatistics && onStatistics(getStatistics(vu));
});
const defaultExtensions = getDefaultExtensions({
theme,
editable,
readOnly,
placeholder: placeholderStr,
indentWithTab: defaultIndentWithTab,
basicSetup: defaultBasicSetup,
});
let getExtensions = [updateListener, defaultThemeOption, ...defaultExtensions];
if (onUpdate && typeof onUpdate === 'function') {
getExtensions.push(EditorView.updateListener.of(onUpdate));
}
getExtensions = getExtensions.concat(extensions);
useEffect(() => {
if (container && !state) {
const config = {
doc: value,
selection,
extensions: getExtensions,
};
const stateCurrent = initialState
? EditorState.fromJSON(initialState.json, config, initialState.fields)
: EditorState.create(config);
setState(stateCurrent);
Eif (!view) {
const viewCurrent = new EditorView({
state: stateCurrent,
parent: container,
root,
});
setView(viewCurrent);
onCreateEditor && onCreateEditor(viewCurrent, stateCurrent);
}
}
return () => {
if (view) {
setState(undefined);
setView(undefined);
}
};
}, [container, state]);
useEffect(() => setContainer(props.container), [props.container]);
useEffect(
() => () => {
if (view) {
view.destroy();
setView(undefined);
}
},
[view],
);
useEffect(() => {
if (autoFocus && view) {
view.focus();
}
}, [autoFocus, view]);
useEffect(() => {
if (view) {
view.dispatch({ effects: StateEffect.reconfigure.of(getExtensions) });
}
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [
theme,
extensions,
height,
minHeight,
maxHeight,
width,
minWidth,
maxWidth,
placeholderStr,
editable,
readOnly,
defaultIndentWithTab,
defaultBasicSetup,
onChange,
onUpdate,
]);
useEffect(() => {
Iif (value === undefined) {
return;
}
const currentValue = view ? view.state.doc.toString() : '';
if (view && value !== currentValue) {
view.dispatch({
changes: { from: 0, to: currentValue.length, insert: value || '' },
annotations: [External.of(true)],
});
}
}, [value, view]);
return { state, setState, view, setView, container, setContainer };
}
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