From 29bdd147e0241e0b1f11fc51c990d6302f19155d Mon Sep 17 00:00:00 2001
From: Shougo Matsushita <Shougo.Matsu@gmail.com>
Date: Wed, 25 Sep 2024 20:36:22 +0900
Subject: [PATCH] Add getFilter()

---
 denops/ddc/app.ts         | 24 +++++++++++++++++++++++-
 denops/ddc/base/filter.ts |  1 +
 denops/ddc/base/source.ts |  1 +
 denops/ddc/base/ui.ts     |  1 +
 denops/ddc/loader.ts      |  3 +++
 5 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/denops/ddc/app.ts b/denops/ddc/app.ts
index 0c22fc4..bf9b23e 100644
--- a/denops/ddc/app.ts
+++ b/denops/ddc/app.ts
@@ -1,11 +1,13 @@
 import { Ddc } from "./ddc.ts";
 import { ContextBuilderImpl } from "./context.ts";
 import type {
+  BaseParams,
   ContextCallbacks,
   DdcEvent,
   DdcExtType,
   DdcItem,
   DdcOptions,
+  FilterOptions,
   Item,
   PreviewContext,
   Previewer,
@@ -14,7 +16,7 @@ import type {
 import { Loader } from "./loader.ts";
 import { isDenoCacheIssueError } from "./utils.ts";
 import { createCallbackContext } from "./callback.ts";
-import { getPreviewer, onCompleteDone, onEvent } from "./ext.ts";
+import { getFilter, getPreviewer, onCompleteDone, onEvent } from "./ext.ts";
 
 import type { Denops, Entrypoint } from "jsr:@denops/std@~7.1.0";
 import * as vars from "jsr:@denops/std@~7.1.0/variable";
@@ -294,6 +296,26 @@ export const main: Entrypoint = (denops: Denops) => {
       );
       return await ddc.visible(denops, context, options);
     },
+    async getFilter(arg1: unknown): Promise<
+      [
+        string,
+        FilterOptions,
+        BaseParams,
+      ]
+    > {
+      const filterName = ensure(arg1, is.String) as string;
+      const [_, _context, options] = await contextBuilder.createContext(
+        denops,
+        "Manual",
+      );
+      const [filter, filterOptions, filterParams] = await getFilter(
+        denops,
+        loader,
+        options,
+        filterName,
+      );
+      return [filter?.path ?? "", filterOptions, filterParams];
+    },
   };
 
   async function _onEvent(event: DdcEvent): Promise<void> {
diff --git a/denops/ddc/base/filter.ts b/denops/ddc/base/filter.ts
index e1c998d..7c251b9 100644
--- a/denops/ddc/base/filter.ts
+++ b/denops/ddc/base/filter.ts
@@ -40,6 +40,7 @@ export type FilterArguments<Params extends BaseParams> = {
 
 export abstract class BaseFilter<Params extends BaseParams> {
   name = "";
+  path = "";
   isInitialized = false;
   apiVersion = 4;
 
diff --git a/denops/ddc/base/source.ts b/denops/ddc/base/source.ts
index 0757c75..2c25a1c 100644
--- a/denops/ddc/base/source.ts
+++ b/denops/ddc/base/source.ts
@@ -82,6 +82,7 @@ export abstract class BaseSource<
   UserData extends unknown = unknown,
 > {
   name = "";
+  path = "";
   isInitialized = false;
   apiVersion = 6;
 
diff --git a/denops/ddc/base/ui.ts b/denops/ddc/base/ui.ts
index 148a8f4..3c54b72 100644
--- a/denops/ddc/base/ui.ts
+++ b/denops/ddc/base/ui.ts
@@ -50,6 +50,7 @@ export type VisibleArguments<Params extends BaseParams> = {
 
 export abstract class BaseUi<Params extends BaseParams> {
   name = "";
+  path = "";
   isInitialized = false;
   apiVersion = 2;
 
diff --git a/denops/ddc/loader.ts b/denops/ddc/loader.ts
index f64f896..d531873 100644
--- a/denops/ddc/loader.ts
+++ b/denops/ddc/loader.ts
@@ -158,6 +158,7 @@ export class Loader {
         add = (name: string) => {
           const ui = new mod.Ui();
           ui.name = name;
+          ui.path = path;
           this.#uis[ui.name] = ui;
         };
         break;
@@ -165,6 +166,7 @@ export class Loader {
         add = (name: string) => {
           const source = new mod.Source();
           source.name = name;
+          source.path = path;
           this.#sources[source.name] = source;
         };
         break;
@@ -172,6 +174,7 @@ export class Loader {
         add = (name: string) => {
           const filter = new mod.Filter();
           filter.name = name;
+          filter.path = path;
           this.#filters[filter.name] = filter;
         };
         break;