From fc328089d08af61b85e3e8c6c170491151f78d20 Mon Sep 17 00:00:00 2001
From: mityu <mityu.mail@gmail.com>
Date: Sun, 19 Oct 2025 20:16:03 +0900
Subject: [PATCH] feat: Add source/action to select and execute vim-gin's
 actions

---
 action/gin_action_execute.ts | 30 ++++++++++++++++++++++++
 action/mod.ts                |  1 +
 deno.jsonc                   |  3 +++
 source/gin_action.ts         | 45 ++++++++++++++++++++++++++++++++++++
 source/mod.ts                |  1 +
 5 files changed, 80 insertions(+)
 create mode 100644 action/gin_action_execute.ts
 create mode 100644 source/gin_action.ts

diff --git a/action/gin_action_execute.ts b/action/gin_action_execute.ts
new file mode 100644
index 0000000..0e5813a
--- /dev/null
+++ b/action/gin_action_execute.ts
@@ -0,0 +1,30 @@
+import { useEval } from "@denops/std/eval/use-eval";
+import { feedkeys } from "@denops/std/function";
+import { type Action, defineAction } from "@vim-fall/std/action";
+import type { Detail } from "@vim-fall/extra/source/gin-action";
+
+/**
+ * Execute a gin action on the current vim-gin's buffer.
+ *
+ * @param denops - The Denops instance for executing Vim commands.
+ * @param item - The item containing the <Plug>-mapping to invoke a gin action.
+ */
+export function ginActionExecute(): Action<Detail> {
+  return defineAction<Detail>(
+    async (denops, { item }, { signal }) => {
+      if (item) {
+        const key = item.detail.gin.actionKey;
+        signal?.throwIfAborted();
+        await useEval(denops, async (denops) => {
+          await feedkeys(denops, key, "i");
+        });
+      }
+    },
+  );
+}
+
+export const defaultGinActionExecuteActions: {
+  "gin-action-execute": Action<Detail>;
+} = {
+  "gin-action-execute": ginActionExecute(),
+};
diff --git a/action/mod.ts b/action/mod.ts
index 7aed2d1..25026fd 100644
--- a/action/mod.ts
+++ b/action/mod.ts
@@ -1,2 +1,3 @@
 // This file is generated by gen-mod.ts
+export * from "./gin_action_execute.ts";
 export * from "./mr_delete.ts";
diff --git a/deno.jsonc b/deno.jsonc
index 8fd4ea7..4122de3 100644
--- a/deno.jsonc
+++ b/deno.jsonc
@@ -4,6 +4,7 @@
   "exports": {
     ".": "./mod.ts",
     "./action": "./action/mod.ts",
+    "./action/gin-action-execute": "./action/gin_action_execute.ts",
     "./action/mr-delete": "./action/mr_delete.ts",
     "./matcher": "./matcher/mod.ts",
     "./matcher/kensaku": "./matcher/kensaku.ts",
@@ -12,6 +13,7 @@
     "./renderer/nerdfont": "./renderer/nerdfont.ts",
     "./renderer/nvim-web-devicons": "./renderer/nvim_web_devicons.ts",
     "./source": "./source/mod.ts",
+    "./source/gin-action": "./source/gin_action.ts",
     "./source/mr": "./source/mr.ts"
   },
   "publish": {
@@ -42,6 +44,7 @@
     "update:commit": "deno task -q update --commit --prefix :package: --pre-commit=fmt,lint"
   },
   "imports": {
+    "@core/iterutil": "jsr:@core/iterutil@^0.9.0",
     "@denops/std": "jsr:@denops/std@^7.3.0",
     "@std/assert": "jsr:@std/assert@^1.0.7",
     "@std/collections": "jsr:@std/collections@^1.0.9",
diff --git a/source/gin_action.ts b/source/gin_action.ts
new file mode 100644
index 0000000..885b189
--- /dev/null
+++ b/source/gin_action.ts
@@ -0,0 +1,45 @@
+import type { Denops } from "@denops/std";
+import { type RawString, rawString as r } from "@denops/std/eval/string";
+import { enumerate } from "@core/iterutil/enumerate";
+import { defineSource, type Source } from "@vim-fall/std/source";
+
+export type Detail = {
+  gin: { actionKey: RawString };
+};
+
+// This function returns all of the <Plug>-mappings of gin's actions.
+async function listGinMaps(denops: Denops) {
+  return await denops.eval(
+    "maplist()->filter({_, v -> stridx(v.lhs, '<Plug>(gin-action-') == 0})->map({_, v -> v.lhs})",
+  ) as string[];
+}
+
+// This function defines a source for gin's actions mainly provided by vim-gin
+// plugin.
+export function ginAction(): Source<Detail> {
+  return defineSource(async function* (denops, _params, { signal }) {
+    const maps = await listGinMaps(denops);
+    signal?.throwIfAborted();
+
+    const allActions = maps.map((v) =>
+      v.match(/^<Plug>\(gin-action-(.*)\)/)![1]
+    );
+    const actions = new Set(allActions);
+
+    signal?.throwIfAborted();
+    allActions.filter((v) => v.endsWith("=")).forEach((v) => {
+      if (actions.has(v.substring(0, v.length - 1))) {
+        actions.delete(v);
+      }
+    });
+
+    for (const [id, action] of enumerate(actions)) {
+      signal?.throwIfAborted();
+      yield {
+        id,
+        value: action,
+        detail: { gin: { actionKey: r`\<Plug>(gin-action-${action})` } },
+      };
+    }
+  });
+}
diff --git a/source/mod.ts b/source/mod.ts
index 6d6b722..4c69b37 100644
--- a/source/mod.ts
+++ b/source/mod.ts
@@ -1,2 +1,3 @@
 // This file is generated by gen-mod.ts
+export * from "./gin_action.ts";
 export * from "./mr.ts";