From 4d126eb84d00de8f5cac7d8c5632bad71144067c Mon Sep 17 00:00:00 2001
From: Qijia Liu <liumeo@pku.edu.cn>
Date: Wed, 2 Apr 2025 22:17:52 -0400
Subject: [PATCH] fake async event for dispatcher schedule

---
 package.json     | 12 ++++++------
 src/event_js.cpp | 18 ++++++++++++++++++
 src/event_js.h   |  4 +++-
 3 files changed, 27 insertions(+), 7 deletions(-)

diff --git a/package.json b/package.json
index 23c5cf8..34fa1da 100644
--- a/package.json
+++ b/package.json
@@ -23,16 +23,16 @@
   },
   "license": "AGPL-3.0-or-later",
   "devDependencies": {
-    "@antfu/eslint-config": "^3.12.1",
-    "@playwright/test": "^1.50.1",
-    "@types/node": "^22.13.5",
+    "@antfu/eslint-config": "^4.11.0",
+    "@playwright/test": "^1.51.1",
+    "@types/node": "^22.13.17",
     "@types/uzip": "^0.20201231.2",
     "error-stack-parser": "^2.1.4",
-    "esbuild": "^0.24.2",
-    "eslint": "^9.17.0",
+    "esbuild": "^0.25.2",
+    "eslint": "^9.23.0",
     "serve": "^14.2.4",
     "textarea-caret": "^3.1.0",
-    "typescript": "^5.7.2",
+    "typescript": "^5.8.2",
     "uzip": "^0.20201231.0"
   }
 }
diff --git a/src/event_js.cpp b/src/event_js.cpp
index 3943a41..6dac9e9 100644
--- a/src/event_js.cpp
+++ b/src/event_js.cpp
@@ -29,6 +29,18 @@ struct JSEventSource : public JSEventSourceBase<EventSource> {
     std::shared_ptr<EventCallback> callback_;
 };
 
+struct JSEventSourceAsync : public JSEventSourceBase<EventSourceAsync> {
+    JSEventSourceAsync(EventCallback _callback)
+        : callback_(std::make_shared<EventCallback>(std::move(_callback))) {}
+
+    void send() override {
+        // This is synchronous but probably not a big deal for JS.
+        (*callback_)(nullptr);
+    }
+
+    std::shared_ptr<EventCallback> callback_;
+};
+
 struct JSEventSourceIO : public JSEventSourceBase<EventSourceIO> {
     JSEventSourceIO(IOCallback _callback) {}
 
@@ -151,4 +163,10 @@ std::unique_ptr<EventSource> JSEventLoop::addPostEvent(EventCallback callback) {
     return nullptr;
 }
 
+std::unique_ptr<EventSourceAsync>
+JSEventLoop::addAsyncEvent(EventCallback callback) {
+    auto source = std::make_unique<JSEventSourceAsync>(std::move(callback));
+    return source;
+}
+
 } // namespace fcitx
diff --git a/src/event_js.h b/src/event_js.h
index 11d0007..76ccb48 100644
--- a/src/event_js.h
+++ b/src/event_js.h
@@ -3,7 +3,7 @@
 #include <fcitx-utils/eventloopinterface.h>
 
 namespace fcitx {
-class JSEventLoop : public EventLoopInterface {
+class JSEventLoop : public EventLoopInterfaceV2 {
   public:
     JSEventLoop() = default;
     ~JSEventLoop() override = default;
@@ -20,5 +20,7 @@ class JSEventLoop : public EventLoopInterface {
     std::unique_ptr<EventSource> addExitEvent(EventCallback callback) override;
     std::unique_ptr<EventSource> addDeferEvent(EventCallback callback) override;
     std::unique_ptr<EventSource> addPostEvent(EventCallback callback) override;
+    std::unique_ptr<EventSourceAsync>
+    addAsyncEvent(EventCallback callback) override;
 };
 } // namespace fcitx