WIP: denops_app

UI module for denops.vim.

import { Denops } from "https://deno.land/x/[email protected]/mod.ts";
import {
  Buffer,
  DenopsApp,
  ListWidget,
  PathParams,
  Route,
  TextWidget,
} from "https://deno.land/x/[email protected]/mod.ts";

const items = [
  { id: 1, hoge: "hoge" },
  { id: 2, hoge: "hogehoge" },
  { id: 3, hoge: "hogehogehoge" },
];

const listHoge = (_params: PathParams): Promise<Buffer> => {
  const list = new ListWidget<{ id: number; hoge: string }>();
  items.forEach((item) => {
    list.setItem(
      item,
      (item: { id: number; hoge: string }): string => item.hoge,
    );
  });

  list.handleKey(
    "<CR>",
    async (denops: Denops, item: { id: number; hoge: string }) => {
      await denops.cmd(`bd! | new denopsapp://${denops.name}/hoge/${item.id}`);
    },
  );

  return Promise.resolve(list);
};

const detailHoge = (params: PathParams): Promise<Buffer> => {
  const text = new TextWidget();

  text.setContent(`Hoge: ${items[Number(params.id) - 1].hoge}`);

  return Promise.resolve(text);
};

export async function main(denops: Denops): Promise<void> {
  const app = new DenopsApp(denops);

  const routes: Route[] = [
    { path: "/hoge", component: listHoge },
    { path: "/hoge/:id", component: detailHoge },
  ];

  app.setRoutes(routes);
  app.addCommand("DenopsAppAwesomeListHoge", "/hoge");

  await app.initialize();
}