Displaying Selected Blocks
In this example, the JSON representation of blocks spanned by the user's selection, is displayed below the editor.
Try it out: Select different blocks in the editor and see the JSON update!
Relevant Docs:
import { Block } from "@blocknote/core";
import "@blocknote/core/fonts/inter.css";
import { BlockNoteView, useCreateBlockNote } from "@blocknote/react";
import "@blocknote/react/style.css";
import { useState } from "react";
import "./styles.css";
export default function App() {
// Stores the selected blocks as an array of Block objects.
const [blocks, setBlocks] = useState<Block[]>([]);
// Creates a new editor instance.
const editor = useCreateBlockNote({
initialContent: [
{
type: "paragraph",
content: "Welcome to this demo!",
},
{
type: "paragraph",
content: "Select different blocks to see the JSON change below",
},
{
type: "paragraph",
},
],
});
// Renders the editor instance.
return (
<div className={"wrapper"}>
<div>BlockNote Editor:</div>
<div className={"item"}>
<BlockNoteView
editor={editor}
onSelectionChange={() => {
const selection = editor.getSelection();
// Get the blocks in the current selection and store on the state. If
// the selection is empty, store the block containing the text cursor
// instead.
if (selection !== undefined) {
setBlocks(selection.blocks);
} else {
setBlocks([editor.getTextCursorPosition().block]);
}
}}
/>
</div>
<div>Selection JSON:</div>
<div className={"item bordered"}>
<pre>
<code>{JSON.stringify(blocks, null, 2)}</code>
</pre>
</div>
</div>
);
}