mirror of
https://github.com/laurent22/joplin.git
synced 2024-12-18 09:35:20 +02:00
427 lines
14 KiB
TypeScript
427 lines
14 KiB
TypeScript
import * as React from 'react';
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import { useState, useEffect, useRef, forwardRef, useCallback, useImperativeHandle, useMemo } from 'react';
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// eslint-disable-next-line no-unused-vars
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import { EditorCommand, NoteBodyEditorProps } from '../../utils/types';
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import { commandAttachFileToBody, handlePasteEvent } from '../../utils/resourceHandling';
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import { ScrollOptions, ScrollOptionTypes } from '../../utils/types';
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import { useScrollHandler, usePrevious, cursorPositionToTextOffset } from './utils';
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import Toolbar from './Toolbar';
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import styles_ from './styles';
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import { RenderedBody, defaultRenderedBody } from './utils/types';
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import Editor from './Editor';
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// @ts-ignore
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const { bridge } = require('electron').remote.require('./bridge');
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// @ts-ignore
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const Note = require('lib/models/Note.js');
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const { clipboard } = require('electron');
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const Setting = require('lib/models/Setting.js');
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const NoteTextViewer = require('../../../NoteTextViewer.min');
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const shared = require('lib/components/shared/note-screen-shared.js');
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const Menu = bridge().Menu;
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const MenuItem = bridge().MenuItem;
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const markdownUtils = require('lib/markdownUtils');
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const { _ } = require('lib/locale');
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const { reg } = require('lib/registry.js');
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const dialogs = require('../../../dialogs');
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function markupRenderOptions(override: any = null) {
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return { ...override };
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}
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function CodeMirror(props: NoteBodyEditorProps, ref: any) {
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const styles = styles_(props);
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const [renderedBody, setRenderedBody] = useState<RenderedBody>(defaultRenderedBody()); // Viewer content
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const [webviewReady, setWebviewReady] = useState(false);
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const previousRenderedBody = usePrevious(renderedBody);
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const previousSearchMarkers = usePrevious(props.searchMarkers);
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const previousContentKey = usePrevious(props.contentKey);
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const editorRef = useRef(null);
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const rootRef = useRef(null);
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const webviewRef = useRef(null);
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const props_onChangeRef = useRef<Function>(null);
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props_onChangeRef.current = props.onChange;
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const contentKeyHasChangedRef = useRef(false);
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contentKeyHasChangedRef.current = previousContentKey !== props.contentKey;
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const { resetScroll, editor_scroll, setEditorPercentScroll, setViewerPercentScroll } = useScrollHandler(editorRef, webviewRef, props.onScroll);
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const cancelledKeys: {mac: string[], default: string[]} = { mac: [], default: [] };
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// Remove Joplin reserved key bindings from the editor
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const letters = ['F', 'T', 'P', 'Q', 'L', ',', 'G', 'K'];
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for (let i = 0; i < letters.length; i++) {
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const l = letters[i];
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cancelledKeys.default.push(`Ctrl-${l}`);
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cancelledKeys.mac.push(`Cmd-${l}`);
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}
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cancelledKeys.default.push('Alt-E');
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cancelledKeys.mac.push('Alt-E');
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const codeMirror_change = useCallback((newBody: string) => {
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props_onChangeRef.current({ changeId: null, content: newBody });
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}, []);
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const wrapSelectionWithStrings = useCallback((string1: string, string2 = '', defaultText = '') => {
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if (!editorRef.current) return;
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if (editorRef.current.somethingSelected()) {
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editorRef.current.wrapSelections(string1, string2);
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} else {
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editorRef.current.wrapSelections(string1 + defaultText, string2);
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// Now select the default text so the user can replace it
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const selections = editorRef.current.listSelections();
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const newSelections = [];
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for (let i = 0; i < selections.length; i++) {
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const s = selections[i];
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const anchor = { line: s.anchor.line, ch: s.anchor.ch + string1.length };
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const head = { line: s.head.line, ch: s.head.ch - string2.length };
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newSelections.push({ anchor: anchor, head: head });
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}
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editorRef.current.setSelections(newSelections);
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}
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editorRef.current.focus();
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}, []);
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const addListItem = useCallback((string1, defaultText = '') => {
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if (editorRef.current) {
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if (editorRef.current.somethingSelected()) {
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editorRef.current.wrapSelectionsByLine(string1);
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} else if (editorRef.current.getCursor('anchor').ch !== 0) {
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editorRef.current.insertAtCursor(`\n${string1}`);
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} else {
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wrapSelectionWithStrings(string1, '', defaultText);
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}
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editorRef.current.focus();
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}
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}, [wrapSelectionWithStrings]);
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useImperativeHandle(ref, () => {
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return {
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content: () => props.content,
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resetScroll: () => {
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resetScroll();
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},
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scrollTo: (options:ScrollOptions) => {
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if (options.type === ScrollOptionTypes.Hash) {
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if (!webviewRef.current) return;
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webviewRef.current.wrappedInstance.send('scrollToHash', options.value as string);
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} else if (options.type === ScrollOptionTypes.Percent) {
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const p = options.value as number;
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setEditorPercentScroll(p);
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setViewerPercentScroll(p);
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} else {
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throw new Error(`Unsupported scroll options: ${options.type}`);
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}
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},
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supportsCommand: (/* name:string*/) => {
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// TODO: not implemented, currently only used for "search" command
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// which is not directly supported by Ace Editor.
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return false;
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},
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execCommand: async (cmd: EditorCommand) => {
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if (!editorRef.current) return false;
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reg.logger().debug('CodeMirror: execCommand', cmd);
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let commandProcessed = true;
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if (cmd.name === 'dropItems') {
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if (cmd.value.type === 'notes') {
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editorRef.current.insertAtCursor(cmd.value.markdownTags.join('\n'));
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} else if (cmd.value.type === 'files') {
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const pos = cursorPositionToTextOffset(editorRef.current.getCursor(), props.content);
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const newBody = await commandAttachFileToBody(props.content, cmd.value.paths, { createFileURL: !!cmd.value.createFileURL, position: pos });
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editorRef.current.updateBody(newBody);
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} else {
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reg.logger().warn('CodeMirror: unsupported drop item: ', cmd);
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}
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} else if (cmd.name === 'focus') {
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editorRef.current.focus();
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} else {
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commandProcessed = false;
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}
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if (!commandProcessed) {
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const commands: any = {
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textBold: () => wrapSelectionWithStrings('**', '**', _('strong text')),
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textItalic: () => wrapSelectionWithStrings('*', '*', _('emphasised text')),
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textLink: async () => {
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const url = await dialogs.prompt(_('Insert Hyperlink'));
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if (url) wrapSelectionWithStrings('[', `](${url})`);
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},
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textCode: () => {
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const selections = editorRef.current.getSelections();
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// This bases the selection wrapping only around the first element
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if (selections.length > 0) {
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const string = selections[0];
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// Look for newlines
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const match = string.match(/\r?\n/);
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if (match && match.length > 0) {
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wrapSelectionWithStrings(`\`\`\`${match[0]}`, `${match[0]}\`\`\``);
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} else {
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wrapSelectionWithStrings('`', '`', '');
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}
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}
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},
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insertText: (value: any) => editorRef.current.insertAtCursor(value),
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attachFile: async () => {
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const cursor = editorRef.current.getCursor();
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const pos = cursorPositionToTextOffset(cursor, props.content);
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const newBody = await commandAttachFileToBody(props.content, null, { position: pos });
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if (newBody) editorRef.current.updateBody(newBody);
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},
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textNumberedList: () => {
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let bulletNumber = markdownUtils.olLineNumber(editorRef.current.getCurrentLine());
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if (!bulletNumber) bulletNumber = markdownUtils.olLineNumber(editorRef.current.getPreviousLine());
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if (!bulletNumber) bulletNumber = 0;
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addListItem(`${bulletNumber + 1}. `, _('List item'));
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},
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textBulletedList: () => addListItem('- ', _('List item')),
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textCheckbox: () => addListItem('- [ ] ', _('List item')),
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textHeading: () => addListItem('## ', ''),
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textHorizontalRule: () => addListItem('* * *'),
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};
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if (commands[cmd.name]) {
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commands[cmd.name](cmd.value);
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} else {
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reg.logger().warn('CodeMirror: unsupported Joplin command: ', cmd);
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return false;
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}
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}
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return true;
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},
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};
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}, [props.content, addListItem, wrapSelectionWithStrings, setEditorPercentScroll, setViewerPercentScroll, resetScroll, renderedBody]);
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const onEditorPaste = useCallback(async (event: any = null) => {
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const resourceMds = await handlePasteEvent(event);
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if (!resourceMds.length) return;
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if (editorRef.current) {
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editorRef.current.replaceSelection(resourceMds.join('\n'));
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}
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}, []);
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const editorCutText = useCallback(() => {
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if (editorRef.current) {
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const selections = editorRef.current.getSelections();
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if (selections.length > 0) {
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clipboard.writeText(selections[0]);
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// Easy way to wipe out just the first selection
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selections[0] = '';
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editorRef.current.replaceSelections(selections);
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}
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}
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}, []);
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const editorCopyText = useCallback(() => {
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if (editorRef.current) {
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const selections = editorRef.current.getSelections();
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if (selections.length > 0) {
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clipboard.writeText(selections[0]);
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}
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}
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}, []);
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const editorPasteText = useCallback(() => {
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if (editorRef.current) {
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editorRef.current.replaceSelection(clipboard.readText());
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}
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}, []);
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const onEditorContextMenu = useCallback(() => {
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const menu = new Menu();
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const hasSelectedText = editorRef.current && !!editorRef.current.getSelection() ;
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const clipboardText = clipboard.readText();
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menu.append(
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new MenuItem({
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label: _('Cut'),
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enabled: hasSelectedText,
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click: async () => {
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editorCutText();
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},
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})
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);
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menu.append(
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new MenuItem({
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label: _('Copy'),
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enabled: hasSelectedText,
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click: async () => {
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editorCopyText();
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},
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})
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);
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menu.append(
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new MenuItem({
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label: _('Paste'),
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enabled: true,
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click: async () => {
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if (clipboardText) {
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editorPasteText();
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} else {
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// To handle pasting images
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onEditorPaste();
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}
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},
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})
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);
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menu.popup(bridge().window());
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}, [props.content, editorCutText, editorPasteText, editorCopyText, onEditorPaste]);
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const webview_domReady = useCallback(() => {
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setWebviewReady(true);
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}, []);
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const webview_ipcMessage = useCallback((event: any) => {
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const msg = event.channel ? event.channel : '';
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const args = event.args;
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const arg0 = args && args.length >= 1 ? args[0] : null;
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if (msg.indexOf('checkboxclick:') === 0) {
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const newBody = shared.toggleCheckbox(msg, props.content);
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if (editorRef.current) {
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editorRef.current.updateBody(newBody);
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}
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} else if (msg === 'percentScroll') {
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setEditorPercentScroll(arg0);
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} else {
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props.onMessage(event);
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}
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}, [props.onMessage, props.content, setEditorPercentScroll]);
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useEffect(() => {
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let cancelled = false;
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const interval = contentKeyHasChangedRef.current ? 0 : 500;
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const timeoutId = setTimeout(async () => {
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let bodyToRender = props.content;
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if (!bodyToRender.trim() && props.visiblePanes.indexOf('viewer') >= 0 && props.visiblePanes.indexOf('editor') < 0) {
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// Fixes https://github.com/laurent22/joplin/issues/217
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bodyToRender = `<i>${_('This note has no content. Click on "%s" to toggle the editor and edit the note.', _('Layout'))}</i>`;
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}
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const result = await props.markupToHtml(props.contentMarkupLanguage, bodyToRender, markupRenderOptions({ resourceInfos: props.resourceInfos }));
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if (cancelled) return;
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setRenderedBody(result);
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}, interval);
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return () => {
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cancelled = true;
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clearTimeout(timeoutId);
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};
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}, [props.content, props.contentMarkupLanguage, props.visiblePanes, props.resourceInfos, props.markupToHtml]);
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useEffect(() => {
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if (!webviewReady) return;
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const options: any = {
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pluginAssets: renderedBody.pluginAssets,
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downloadResources: Setting.value('sync.resourceDownloadMode'),
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};
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webviewRef.current.wrappedInstance.send('setHtml', renderedBody.html, options);
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}, [renderedBody, webviewReady]);
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useEffect(() => {
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if (props.searchMarkers !== previousSearchMarkers || renderedBody !== previousRenderedBody) {
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webviewRef.current.wrappedInstance.send('setMarkers', props.searchMarkers.keywords, props.searchMarkers.options);
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}
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}, [props.searchMarkers, renderedBody]);
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const cellEditorStyle = useMemo(() => {
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const output = { ...styles.cellEditor };
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if (!props.visiblePanes.includes('editor')) {
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output.display = 'none'; // Seems to work fine since the refactoring
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}
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return output;
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}, [styles.cellEditor, props.visiblePanes]);
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const cellViewerStyle = useMemo(() => {
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const output = { ...styles.cellViewer };
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if (!props.visiblePanes.includes('viewer')) {
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// Note: setting webview.display to "none" is currently not supported due
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// to this bug: https://github.com/electron/electron/issues/8277
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// So instead setting the width 0.
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output.width = 1;
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output.maxWidth = 1;
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} else if (!props.visiblePanes.includes('editor')) {
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output.borderLeftStyle = 'none';
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}
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return output;
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}, [styles.cellViewer, props.visiblePanes]);
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const editorReadOnly = props.visiblePanes.indexOf('editor') < 0;
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function renderEditor() {
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return (
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<div style={cellEditorStyle}>
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<Editor
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value={props.content}
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ref={editorRef}
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mode={props.contentMarkupLanguage === Note.MARKUP_LANGUAGE_HTML ? 'xml' : 'gfm'}
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theme={styles.editor.codeMirrorTheme}
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style={styles.editor}
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readOnly={props.visiblePanes.indexOf('editor') < 0}
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autoMatchBraces={Setting.value('editor.autoMatchingBraces')}
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keyMap={props.keyboardMode}
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cancelledKeys={cancelledKeys}
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onChange={codeMirror_change}
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onScroll={editor_scroll}
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onEditorContextMenu={onEditorContextMenu}
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onEditorPaste={onEditorPaste}
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/>
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</div>
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);
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}
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function renderViewer() {
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return (
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<div style={cellViewerStyle}>
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<NoteTextViewer
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ref={webviewRef}
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viewerStyle={styles.viewer}
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onIpcMessage={webview_ipcMessage}
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onDomReady={webview_domReady}
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/>
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</div>
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);
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}
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return (
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<div style={styles.root} ref={rootRef}>
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<div style={styles.rowToolbar}>
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<Toolbar
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theme={props.theme}
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dispatch={props.dispatch}
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disabled={editorReadOnly}
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/>
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{props.noteToolbar}
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</div>
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<div style={styles.rowEditorViewer}>
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{renderEditor()}
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{renderViewer()}
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</div>
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</div>
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);
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}
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export default forwardRef(CodeMirror);
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