33 lines
878 B
TypeScript
33 lines
878 B
TypeScript
import { NodeType } from "prosemirror-model";
|
|
import { EditorState, Transaction } from "prosemirror-state";
|
|
|
|
export default function backspaceToParagraph(type: NodeType) {
|
|
return (state: EditorState, dispatch: (tr: Transaction) => void) => {
|
|
const { $from, from, to, empty } = state.selection;
|
|
|
|
// if the selection has anything in it then use standard delete behavior
|
|
if (!empty) {
|
|
return null;
|
|
}
|
|
|
|
// check we're in a matching node
|
|
if ($from.parent.type !== type) {
|
|
return null;
|
|
}
|
|
|
|
// check if we're at the beginning of the heading
|
|
const $pos = state.doc.resolve(from - 1);
|
|
if ($pos.parent === $from.parent) {
|
|
return null;
|
|
}
|
|
|
|
// okay, replace it with a paragraph
|
|
dispatch(
|
|
state.tr
|
|
.setBlockType(from, to, type.schema.nodes.paragraph)
|
|
.scrollIntoView()
|
|
);
|
|
return true;
|
|
};
|
|
}
|