1 files changed, 66 insertions, 0 deletions
diff --git a/src/platform/gui/sdl/InputMethod.cpp b/src/platform/gui/sdl/InputMethod.cpp
new file mode 100644
index 00000000..0cd22544
--- /dev/null
+++ b/src/platform/gui/sdl/InputMethod.cpp
@@ -0,0 +1,66 @@
+#include "cru/platform/gui/sdl/InputMethod.h"
+#include "SDL3/SDL_events.h"
+#include "cru/platform/gui/sdl/Base.h"
+#include "cru/platform/gui/sdl/Window.h"
+
+#include <SDL3/SDL_keyboard.h>
+
+namespace cru::platform::gui::sdl {
+SdlInputMethodContext::SdlInputMethodContext(SdlWindow* window)
+    : window_(window) {}
+
+bool SdlInputMethodContext::ShouldManuallyDrawCompositionText() {
+  return false;
+}
+
+void SdlInputMethodContext::EnableIME() {
+  if (auto sdl_window = window_->GetSdlWindow()) {
+    CheckSdlReturn(SDL_StartTextInput(sdl_window));
+  }
+}
+void SdlInputMethodContext::DisableIME() {
+  if (auto sdl_window = window_->GetSdlWindow()) {
+    CheckSdlReturn(SDL_StopTextInput(sdl_window));
+  }
+}
+
+void SdlInputMethodContext::CompleteComposition() { CancelComposition(); }
+
+void SdlInputMethodContext::CancelComposition() {
+  if (auto sdl_window = window_->GetSdlWindow()) {
+    CheckSdlReturn(SDL_ClearComposition(sdl_window));
+  }
+}
+
+CompositionText SdlInputMethodContext::GetCompositionText() { return {}; }
+
+void SdlInputMethodContext::SetCandidateWindowPosition(const Point& point) {
+  if (auto sdl_window = window_->GetSdlWindow()) {
+    SDL_Rect rect{static_cast<int>(point.x), static_cast<int>(point.y), 1, 1};
+    CheckSdlReturn(SDL_SetTextInputArea(sdl_window, &rect, 0));
+  }
+}
+
+namespace {
+std::optional<SDL_WindowID> GetEventWindowId(const SDL_Event& event) {
+  switch (event.type) {
+    case SDL_EVENT_TEXT_INPUT:
+      return event.text.windowID;
+    default:
+      return std::nullopt;
+  }
+}
+}  // namespace
+
+bool SdlInputMethodContext::HandleEvent(const SDL_Event* event) {
+  if (window_->GetSdlWindowId() != GetEventWindowId(*event)) return false;
+
+  if (event->type == SDL_EVENT_TEXT_INPUT) {
+    std::string text(event->text.text);
+    TextEvent_.Raise(text);
+    return true;
+  }
+  return false;
+}
+
+}  // namespace cru::platform::gui::sdl