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fixes #2 Signed-off-by: Colton Wolkins (Laptop) <colton@indicio.tech>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,160 @@ | ||
| import React, { useState, useCallback, useMemo } from 'react' | ||
| import { Node as SNode, Transforms, Text, createEditor, Descendant } from 'slate' | ||
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| import { Slate, Editable, withReact } from 'slate-react' | ||
| import { withHistory } from 'slate-history' | ||
| import { css } from '@emotion/css' | ||
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| import Prism from 'prismjs' | ||
| import 'prismjs/components/prism-markdown' | ||
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| const Editor = ({ onSubmit }) => { | ||
| const [value, setValue] = useState(initialValue); | ||
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| const renderLeaf = useCallback(props => <Leaf {...props} />, []) | ||
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| const editor = useMemo(() => withHistory(withReact(createEditor())), []); | ||
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| const decorate = useCallback(([node, path]) => { | ||
| const ranges = []; | ||
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| if(!Text.isText(node)) { | ||
| return ranges; | ||
| } | ||
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| const getLength = token => { | ||
| if(typeof token === 'string') | ||
| return token.length; | ||
| else if(typeof token.content == 'string') | ||
| return token.content.length; | ||
| else | ||
| return token.content.reduce((l, t) => l + getLength(t), 0); | ||
| } | ||
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| const tokens = Prism.tokenize(node.text, Prism.languages.markdown); | ||
| let start = 0; | ||
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| for(const token of tokens) { | ||
| const length = getLength(token); | ||
| const end = start + length; | ||
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| if(typeof token !== 'string') { | ||
| ranges.push({ | ||
| [token.type]: true, | ||
| anchor: {path, offset: start}, | ||
| focus: {path, offset: end}, | ||
| }); | ||
| } | ||
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| start = end; | ||
| } | ||
| return ranges; | ||
| }, []); | ||
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| return ( | ||
| <div className="grow"> | ||
| <Slate | ||
| editor={editor} | ||
| initialValue={value} | ||
| onChange={(value) => { | ||
| setValue(value); | ||
| }} | ||
| > | ||
| <Editable | ||
| decorate={decorate} | ||
| renderLeaf={renderLeaf} | ||
| placeholder="Message for friends" | ||
| className="py-2 px-4 bg-slate-200 dark:bg-slate-600" | ||
| onKeyDown={event => { | ||
| if(!event.ctrlKey) { | ||
| return; | ||
| } | ||
| if(event.key === 'Enter' && !event.shiftKey) { | ||
| event.preventDefault(); | ||
| onSubmit(value.map(n => SNode.string(n)).join('\n')); | ||
| const newValue = [{type: 'paragraph', children: [{text: ""}]}]; | ||
| //const point = { path: [0, 0], offset: 0 } | ||
| //editor.selection = { anchor: point, focus: point }; | ||
| //editor.history = { redos: [], undos: [] }; | ||
| //editor.children = newValue; | ||
| Transforms.select(editor, { offset: 0, path: [0, 0] }); | ||
| editor.children.map(item => Transforms.delete(editor, { at: [0] })); | ||
| editor.children = newValue; | ||
| editor.onChange(); | ||
| //setValue(newValue); | ||
| } | ||
| }} | ||
| /> | ||
| </Slate> | ||
| </div> | ||
| ); | ||
| }; | ||
|
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| const Leaf = ({ attributes, children, leaf }) => { | ||
| return ( | ||
| <span | ||
| {...attributes} | ||
| className={css` | ||
| font-weight: ${leaf.bold && 'bold'}; | ||
| font-style: ${leaf.italic && 'italic'}; | ||
| text-decoration: ${leaf.underlined && 'underline'}; | ||
| ${leaf.title && | ||
| css` | ||
| display: inline-block; | ||
| font-weight: bold; | ||
| font-size: 20px; | ||
| margin: 20px 0 10px 0; | ||
| `} | ||
| ${leaf.list && | ||
| css` | ||
| padding-left: 10px; | ||
| font-size: 20px; | ||
| line-height: 10px; | ||
| `} | ||
| ${leaf.hr && | ||
| css` | ||
| display: block; | ||
| text-align: center; | ||
| border-bottom: 2px solid #ddd; | ||
| `} | ||
| ${leaf.blockquote && | ||
| css` | ||
| display: inline-block; | ||
| border-left: 2px solid #ddd; | ||
| padding-left: 10px; | ||
| color: #aaa; | ||
| font-style: italic; | ||
| `} | ||
| ${leaf.code && | ||
| css` | ||
| font-family: monospace; | ||
| background-color: #eee; | ||
| padding: 3px; | ||
| `} | ||
| `} | ||
| > | ||
| {children} | ||
| </span> | ||
| ); | ||
| }; | ||
|
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| const initialValue: Descendant[] = [ | ||
| { | ||
| type: 'paragraph', | ||
| children: [ | ||
| { | ||
| text: 'Slate is flexible enough to add **decorations** that can format text based on its content. For example, this editor has **Markdown** preview decorations on it, to make it _dead_ simple to make an editor with built-in Markdown previewing.', | ||
| }, | ||
| ], | ||
| }, | ||
| { | ||
| type: 'paragraph', | ||
| children: [{ text: '## Try it out!' }], | ||
| }, | ||
| { | ||
| type: 'paragraph', | ||
| children: [{ text: 'Try it out for yourself!' }], | ||
| }, | ||
| ] | ||
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| export default Editor; |
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