3 files changed, 54 insertions, 6 deletions

diff --git a/src/win/native/input_method.cpp b/src/win/native/input_method.cpp
index 73831bd5..091abedd 100644
--- a/src/win/native/input_method.cpp
+++ b/src/win/native/input_method.cpp
@@ -84,8 +84,8 @@ CompositionClauses GetCompositionClauses(HIMC imm_context, int target_start,
   int clause_size =
       ::ImmGetCompositionString(imm_context, GCS_COMPCLAUSE, NULL, 0);
   int clause_length = clause_size / sizeof(std::uint32_t);
-  result.reserve(clause_length - 1);
   if (clause_length) {
+    result.reserve(clause_length - 1);
     std::vector<std::uint32_t> clause_data(clause_length);
     ::ImmGetCompositionString(imm_context, GCS_COMPCLAUSE, clause_data.data(),
                               clause_size);
@@ -107,12 +107,21 @@ CompositionClauses GetCompositionClauses(HIMC imm_context, int target_start,
 std::wstring GetString(HIMC imm_context) {
   LONG string_size =
       ::ImmGetCompositionString(imm_context, GCS_COMPSTR, NULL, 0);
-  std::wstring result((string_size / sizeof(wchar_t)) + 1, 0);
+  std::wstring result((string_size / sizeof(wchar_t)), 0);
   ::ImmGetCompositionString(imm_context, GCS_COMPSTR, result.data(),
                             string_size);
   return result;
 }
 
+std::wstring GetResultString(HIMC imm_context) {
+  LONG string_size =
+      ::ImmGetCompositionString(imm_context, GCS_RESULTSTR, NULL, 0);
+  std::wstring result((string_size / sizeof(wchar_t)), 0);
+  ::ImmGetCompositionString(imm_context, GCS_RESULTSTR, result.data(),
+                            string_size);
+  return result;
+}
+
 CompositionText GetCompositionInfo(HIMC imm_context) {
   // We only care about GCS_COMPATTR, GCS_COMPCLAUSE and GCS_CURSORPOS, and
   // convert them into underlines and selection range respectively.
@@ -244,6 +253,16 @@ void WinInputMethodContext::OnWindowNativeMessage(
   switch (message.msg) {
     case WM_IME_COMPOSITION: {
       composition_event_.Raise(nullptr);
+      auto composition_text = GetCompositionText();
+      log::Debug(
+          "WinInputMethodContext: WM_IME_COMPOSITION composition text:\n{}",
+          composition_text);
+      if (message.l_param & GCS_RESULTSTR) {
+        auto result_string = GetResultString();
+        log::Debug(
+            "WinInputMethodContext: WM_IME_COMPOSITION result string: {}",
+            result_string);
+      }
       break;
     }
     case WM_IME_STARTCOMPOSITION: {
@@ -257,6 +276,15 @@ void WinInputMethodContext::OnWindowNativeMessage(
   }
 }
 
+std::string WinInputMethodContext::GetResultString() {
+  auto optional_himc = TryGetHIMC();
+  if (!optional_himc.has_value()) return "";
+  auto himc = *std::move(optional_himc);
+
+  auto w_result = win::GetResultString(himc.Get());
+  return platform::win::ToUtf8String(w_result);
+}
+
 std::optional<AutoHIMC> WinInputMethodContext::TryGetHIMC() {
   const auto native_window = Resolve(native_window_resolver_.get());
   if (native_window == nullptr) return std::nullopt;
diff --git a/src/win/native/ui_application.cpp b/src/win/native/ui_application.cpp
index 7fba6805..9aa3ebcd 100644
--- a/src/win/native/ui_application.cpp
+++ b/src/win/native/ui_application.cpp
@@ -13,6 +13,12 @@
 #include "timer.hpp"
 #include "window_manager.hpp"
 
+namespace cru::platform::native {
+std::unique_ptr<IUiApplication> CreateUiApplication() {
+  return std::make_unique<win::WinUiApplication>();
+}
+}  // namespace cru::platform::native
+
 namespace cru::platform::native::win {
 WinUiApplication* WinUiApplication::instance = nullptr;
 
diff --git a/src/win/native/window.cpp b/src/win/native/window.cpp
index 7ad63769..30c77659 100644
--- a/src/win/native/window.cpp
+++ b/src/win/native/window.cpp
@@ -290,6 +290,20 @@ bool WinNativeWindow::HandleNativeWindowMessage(HWND hwnd, UINT msg,
       OnKeyUpInternal(static_cast<int>(w_param));
       *result = 0;
       return true;
+    case WM_SYSKEYDOWN:
+      if (l_param & (1 << 29)) {
+        OnKeyDownInternal(static_cast<int>(w_param));
+        *result = 0;
+        return true;
+      }
+      return false;
+    case WM_SYSKEYUP:
+      if (l_param & (1 << 29)) {
+        OnKeyUpInternal(static_cast<int>(w_param));
+        *result = 0;
+        return true;
+      }
+      return false;
     case WM_CHAR:
       OnCharInternal(static_cast<wchar_t>(w_param));
       *result = 0;
@@ -419,13 +433,13 @@ void WinNativeWindow::OnCharInternal(wchar_t c) {
     last_wm_char_event_wparam_ = c;
     return;
   } else if (platform::win::IsSurrogatePairTrailing(c)) {
-    wchar_t s[3] = {last_wm_char_event_wparam_, c, 0};
-    auto str = platform::win::ToUtf8String(s);
+    wchar_t s[2] = {last_wm_char_event_wparam_, c};
+    auto str = platform::win::ToUtf8String({s, 2});
     char_event_.Raise(str);
     log::Debug("WinNativeWindow: char event, charactor is {}", str);
   } else {
-    wchar_t s[2] = {c, 0};
-    auto str = platform::win::ToUtf8String(s);
+    wchar_t s[1] = {c};
+    auto str = platform::win::ToUtf8String({s, 1});
     char_event_.Raise(str);
     log::Debug("WinNativeWindow: char event, charactor is {}", str);
   }