Add g:guise_edit_opener and use 'tab drop'

Author: lambdalisue

denops/guise/editor.ts

@@ -3,6 +3,7 @@ import * as autocmd from "https://deno.land/x/denops_std@v2.1.3/autocmd/mod.ts";
 import * as anonymous from "https://deno.land/x/denops_std@v2.1.3/anonymous/mod.ts";
 import * as batch from "https://deno.land/x/denops_std@v2.1.3/batch/mod.ts";
 import * as fn from "https://deno.land/x/denops_std@v2.1.3/function/mod.ts";
+import * as vars from "https://deno.land/x/denops_std@v2.1.3/variable/mod.ts";
 import * as option from "https://deno.land/x/denops_std@v2.1.3/option/mod.ts";
 import { deferred } from "https://deno.land/std@0.111.0/async/mod.ts";
 
@@ -17,7 +18,8 @@ export async function open(denops: Denops): Promise<void> {
  * Open a `filename` buffer in a new tab page and wait the buffer is closed.
  */
 export async function edit(denops: Denops, filename: string): Promise<void> {
-  await denops.cmd("silent noswapfile tabedit `=filename`", { filename });
+  let opener = await vars.g.get(denops, "guise_edit_opener", "tab drop");
+  await denops.cmd(`silent noswapfile ${opener} \`=filename\` | edit`, { filename });
   const [winid, bufnr] = await batch.gather(denops, async (denops) => {
     await fn.win_getid(denops);
     await fn.bufnr(denops);

doc/guise.txt

@@ -25,6 +25,11 @@ INTERFACE						*guise-interface*
 -----------------------------------------------------------------------------
 VARIABLE						*guise-variable*
 
+*g:guise_edit_opener*
+	Opener expression used to edit file
+
+	Default: "tab drop"
+
 *g:guise#disable_vim*
 	Do NOT start channel server for Vim.