@milkdown/plugin-trailing/lib/index.js

import { Plugin, PluginKey } from "@milkdown/prose/state";
import { $ctx, $prose } from "@milkdown/utils";
//#region src/index.ts
var trailingConfig = $ctx({
	shouldAppend: (lastNode) => {
		if (!lastNode) return false;
		if (["heading", "paragraph"].includes(lastNode.type.name)) return false;
		return true;
	},
	getNode: (state) => state.schema.nodes.paragraph.create()
}, "trailingConfig");
trailingConfig.meta = {
	package: "@milkdown/plugin-trailing",
	displayName: "Ctx<trailingConfig>"
};
var trailingPlugin = $prose((ctx) => {
	const trailingPluginKey = new PluginKey("MILKDOWN_TRAILING");
	const { shouldAppend, getNode } = ctx.get(trailingConfig.key);
	const plugin = new Plugin({
		key: trailingPluginKey,
		state: {
			init: (_, state) => {
				const lastNode = state.tr.doc.lastChild;
				return shouldAppend(lastNode, state);
			},
			apply: (tr, value, _, state) => {
				if (!tr.docChanged) return value;
				const lastNode = tr.doc.lastChild;
				return shouldAppend(lastNode, state);
			}
		},
		appendTransaction: (_, __, state) => {
			const { doc, tr } = state;
			const nodeType = getNode?.(state);
			const shouldInsertNodeAtEnd = plugin.getState(state);
			const endPosition = doc.content.size;
			if (!shouldInsertNodeAtEnd || !nodeType) return;
			return tr.insert(endPosition, nodeType);
		}
	});
	return plugin;
});
trailingPlugin.meta = {
	package: "@milkdown/plugin-trailing",
	displayName: "Prose<trailing>"
};
var trailing = [trailingConfig, trailingPlugin];
//#endregion
export { trailing, trailingConfig, trailingPlugin };

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