pgadmin4/web/pgadmin/static/js/components/CodeMirror.jsx

396 lines
12 KiB
JavaScript

/////////////////////////////////////////////////////////////
//
// pgAdmin 4 - PostgreSQL Tools
//
// Copyright (C) 2013 - 2022, The pgAdmin Development Team
// This software is released under the PostgreSQL Licence
//
//////////////////////////////////////////////////////////////
import React, { useEffect, useMemo, useRef, useState } from 'react';
import {default as OrigCodeMirror} from 'bundled_codemirror';
import {useOnScreen} from 'sources/custom_hooks';
import PropTypes from 'prop-types';
import CustomPropTypes from '../custom_prop_types';
import pgAdmin from 'sources/pgadmin';
import gettext from 'sources/gettext';
import { Box, InputAdornment, makeStyles } from '@material-ui/core';
import clsx from 'clsx';
import { InputText } from './FormComponents';
import { PgIconButton } from './Buttons';
import CloseIcon from '@material-ui/icons/CloseRounded';
import ArrowDownwardRoundedIcon from '@material-ui/icons/ArrowDownwardRounded';
import ArrowUpwardRoundedIcon from '@material-ui/icons/ArrowUpwardRounded';
import SwapHorizRoundedIcon from '@material-ui/icons/SwapHorizRounded';
import SwapCallsRoundedIcon from '@material-ui/icons/SwapCallsRounded';
import _ from 'lodash';
import { RegexIcon, FormatCaseIcon } from './ExternalIcon';
import { isMac } from '../keyboard_shortcuts';
const useStyles = makeStyles((theme)=>({
root: {
position: 'relative',
},
findDialog: {
position: 'absolute',
zIndex: 99,
right: '4px',
...theme.mixins.panelBorder.all,
borderTop: 'none',
padding: '2px 4px',
width: '250px',
backgroundColor: theme.palette.background.default,
},
marginTop: {
marginTop: '0.25rem',
}
}));
function parseString(string) {
return string.replace(/\\([nrt\\])/g, function(match, ch) {
if (ch == 'n') return '\n';
if (ch == 'r') return '\r';
if (ch == 't') return '\t';
if (ch == '\\') return '\\';
return match;
});
}
function parseQuery(query, useRegex=false, matchCase=false) {
if (useRegex) {
query = new RegExp(query, matchCase ? 'g': 'gi');
} else {
query = parseString(query);
if(!matchCase) {
query = query.toLowerCase();
}
}
if (typeof query == 'string' ? query == '' : query.test(''))
query = /x^/;
return query;
}
function searchOverlay(query, matchCase) {
return {
token: typeof query == 'string' ?
(stream) =>{
var matchIndex = (matchCase ? stream.string : stream.string.toLowerCase()).indexOf(query, stream.pos);
if(matchIndex == -1) {
stream.skipToEnd();
} else if(matchIndex == stream.pos) {
stream.pos += query.length;
return 'searching';
} else {
stream.pos = matchIndex;
}
} : (stream) => {
query.lastIndex = stream.pos;
var match = query.exec(stream.string);
if (match && match.index == stream.pos) {
stream.pos += match[0].length || 1;
return 'searching';
} else if (match) {
stream.pos = match.index;
} else {
stream.skipToEnd();
}
}
};
}
export const CodeMirrorInstancType = PropTypes.shape({
getCursor: PropTypes.func,
getSearchCursor: PropTypes.func,
removeOverlay: PropTypes.func,
addOverlay: PropTypes.func,
setSelection: PropTypes.func,
scrollIntoView: PropTypes.func,
});
export function FindDialog({editor, show, replace, onClose}) {
const [findVal, setFindVal] = useState('');
const [replaceVal, setReplaceVal] = useState('');
const [useRegex, setUseRegex] = useState(false);
const [matchCase, setMatchCase] = useState(false);
const findInputRef = useRef();
const highlightsearch = useRef();
const searchCursor = useRef();
const classes = useStyles();
const search = ()=>{
if(editor) {
let query = parseQuery(findVal, useRegex, matchCase);
searchCursor.current = editor.getSearchCursor(query, editor.getCursor(true), !matchCase);
if(findVal != '') {
editor.removeOverlay(highlightsearch.current);
highlightsearch.current = searchOverlay(query, matchCase);
editor.addOverlay(highlightsearch.current);
onFindNext();
} else {
editor.removeOverlay(highlightsearch.current);
}
}
};
useEffect(()=>{
if(show) {
findInputRef.current && findInputRef.current.select();
search();
}
}, [show]);
useEffect(()=>{
search();
}, [findVal, useRegex, matchCase]);
const clearAndClose = ()=>{
editor.removeOverlay(highlightsearch.current);
onClose();
};
const toggle = (name)=>{
if(name == 'regex') {
setUseRegex((prev)=>!prev);
} else if(name == 'case') {
setMatchCase((prev)=>!prev);
}
};
const onFindEnter = (e) => {
if (e.key === 'Enter') {
e.preventDefault();
if(e.shiftKey) {
onFindPrev();
} else {
onFindNext();
}
}
};
const onReplaceEnter = (e) => {
if (e.key === 'Enter') {
e.preventDefault();
onReplace();
}
};
const onEscape = (e)=>{
if (e.key === 'Escape') {
e.preventDefault();
clearAndClose();
}
};
const onFindNext = ()=>{
if(searchCursor.current && searchCursor.current.find()) {
editor.setSelection(searchCursor.current.from(), searchCursor.current.to());
editor.scrollIntoView({
from: searchCursor.current.from(),
to: searchCursor.current.to()
}, 20);
}
};
const onFindPrev = ()=>{
if(searchCursor.current && searchCursor.current.find(true)) {
editor.setSelection(searchCursor.current.from(), searchCursor.current.to());
editor.scrollIntoView({
from: searchCursor.current.from(),
to: searchCursor.current.to()
}, 20);
}
};
const onReplace = ()=>{
searchCursor.current.replace(replaceVal);
onFindNext();
};
const onReplaceAll = ()=>{
while(searchCursor.current.from()) {
onReplace();
}
};
if(!editor) {
return <></>;
}
return (
<Box className={classes.findDialog} visibility={show ? 'visible' : 'hidden'} tabIndex="0" onKeyDown={onEscape}>
<InputText value={findVal}
inputRef={(ele)=>{findInputRef.current = ele;}}
onChange={(value)=>setFindVal(value)}
onKeyPress={onFindEnter}
endAdornment={
<InputAdornment position="end">
<PgIconButton data-test="case" title="Match case" icon={<FormatCaseIcon />} size="xs" noBorder
onClick={()=>toggle('case')} color={matchCase ? 'primary' : 'default'} style={{marginRight: '2px'}}/>
<PgIconButton data-test="regex" title="Use regex" icon={<RegexIcon />} size="xs" noBorder
onClick={()=>toggle('regex')} color={useRegex ? 'primary' : 'default'}/>
</InputAdornment>
}
/>
{replace &&
<InputText value={replaceVal}
className={classes.marginTop}
onChange={(value)=>setReplaceVal(value)}
onKeyPress={onReplaceEnter}
/>}
<Box display="flex" className={classes.marginTop}>
<PgIconButton title={gettext('Previous')} icon={<ArrowUpwardRoundedIcon />} size="xs" noBorder onClick={onFindPrev} />
<PgIconButton title={gettext('Next')} icon={<ArrowDownwardRoundedIcon />} size="xs" noBorder onClick={onFindNext}/>
{replace && <>
<PgIconButton title={gettext('Replace')} icon={<SwapHorizRoundedIcon style={{height: 'unset'}}/>} size="xs" noBorder onClick={onReplace} />
<PgIconButton title={gettext('Replace All')} icon={<SwapCallsRoundedIcon />} size="xs" noBorder onClick={onReplaceAll}/>
</>}
<Box marginLeft="auto">
<PgIconButton title={gettext('Close')} icon={<CloseIcon />} size="xs" noBorder onClick={clearAndClose}/>
</Box>
</Box>
</Box>
);
}
FindDialog.propTypes = {
editor: CodeMirrorInstancType,
show: PropTypes.bool,
replace: PropTypes.bool,
onClose: PropTypes.func,
};
/* React wrapper for CodeMirror */
export default function CodeMirror({currEditor, name, value, options, events, readonly, disabled, className}) {
const taRef = useRef();
const editor = useRef();
const cmWrapper = useRef();
const isVisibleTrack = useRef();
const classes = useStyles();
const [[showFind, isReplace], setShowFind] = useState([false, false]);
const defaultOptions = {
tabindex: '0',
lineNumbers: true,
styleSelectedText: true,
mode: 'text/x-pgsql',
foldOptions: {
widget: '\u2026',
},
foldGutter: true,
gutters: ['CodeMirror-linenumbers', 'CodeMirror-foldgutter'],
extraKeys: pgAdmin.Browser.editor_shortcut_keys,
dragDrop: false,
screenReaderLabel: gettext('SQL editor'),
};
useEffect(()=>{
const finalOptions = {...defaultOptions, ...options};
/* Create the object only once on mount */
editor.current = new OrigCodeMirror.fromTextArea(
taRef.current, finalOptions);
if(!_.isEmpty(value)) {
editor.current.setValue(value);
} else {
editor.current.setValue('');
}
currEditor && currEditor(editor.current);
if(editor.current) {
try {
cmWrapper.current = editor.current.getWrapperElement();
} catch(e) {
cmWrapper.current = null;
}
let findKey = 'Ctrl-F', replaceKey = 'Shift-Ctrl-F';
if(isMac()) {
findKey = 'Cmd-F';
replaceKey = 'Cmd-Alt-F';
}
editor.current.addKeyMap({
[findKey]: ()=>{
setShowFind([false, false]);
setShowFind([true, false]);
},
[replaceKey]: ()=>{
if(!finalOptions.readOnly) {
setShowFind([false, false]);
setShowFind([true, true]);
}
}
});
}
Object.keys(events||{}).forEach((eventName)=>{
editor.current.on(eventName, events[eventName]);
});
return ()=>{
editor.current?.toTextArea();
};
}, []);
useEffect(()=>{
if(editor.current) {
if(disabled) {
cmWrapper.current.classList.add('cm_disabled');
editor.current.setOption('readOnly', 'nocursor');
} else if(readonly) {
cmWrapper.current.classList.add('cm_disabled');
editor.current.setOption('readOnly', true);
editor.current.addKeyMap({'Tab': false});
editor.current.addKeyMap({'Shift-Tab': false});
} else {
cmWrapper.current.classList.remove('cm_disabled');
editor.current.setOption('readOnly', false);
editor.current.removeKeyMap('Tab');
editor.current.removeKeyMap('Shift-Tab');
}
}
}, [readonly, disabled]);
useMemo(() => {
if(editor.current) {
if(value != editor.current.getValue()) {
if(!_.isEmpty(value)) {
editor.current.setValue(value);
} else {
editor.current.setValue('');
}
}
}
}, [value]);
const onScreenVisible = useOnScreen(cmWrapper);
if(!isVisibleTrack.current && onScreenVisible) {
isVisibleTrack.current = true;
editor.current?.refresh();
} else if(!onScreenVisible) {
isVisibleTrack.current = false;
}
const closeFind = ()=>{
setShowFind([false, false]);
editor.current?.focus();
};
return (
<div className={clsx(className, classes.root)}>
<FindDialog editor={editor.current} show={showFind} replace={isReplace} onClose={closeFind}/>
<textarea ref={taRef} name={name} />
</div>
);
}
CodeMirror.propTypes = {
currEditor: PropTypes.func,
name: PropTypes.string,
value: PropTypes.string,
options: PropTypes.object,
change: PropTypes.func,
events: PropTypes.object,
readonly: PropTypes.bool,
disabled: PropTypes.bool,
className: CustomPropTypes.className,
};