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1 files changed, 84 insertions, 0 deletions

diff --git a/src/platform/gui/osx/InputMethod.mm b/src/platform/gui/osx/InputMethod.mm
new file mode 100644
index 00000000..50ff80de
--- /dev/null
+++ b/src/platform/gui/osx/InputMethod.mm
@@ -0,0 +1,84 @@
+#include "cru/platform/gui/osx/InputMethod.h"
+
+#import <AppKit/AppKit.h>
+#include "InputMethodPrivate.h"
+#include "WindowPrivate.h"
+#include "cru/common/log/Logger.h"
+#include "cru/platform/osx/Convert.h"
+#include "cru/platform/gui/osx/Window.h"
+
+namespace cru::platform::gui::osx {
+namespace details {
+OsxInputMethodContextPrivate::OsxInputMethodContextPrivate(
+    OsxInputMethodContext* input_method_context, OsxWindow* window) {
+  input_method_context_ = input_method_context;
+  window_ = window;
+}
+
+OsxInputMethodContextPrivate::~OsxInputMethodContextPrivate() {}
+
+void OsxInputMethodContextPrivate::RaiseCompositionStartEvent() {
+  composition_start_event_.Raise(nullptr);
+}
+void OsxInputMethodContextPrivate::RaiseCompositionEndEvent() {
+  composition_end_event_.Raise(nullptr);
+}
+void OsxInputMethodContextPrivate::RaiseCompositionEvent() { composition_event_.Raise(nullptr); }
+
+void OsxInputMethodContextPrivate::RaiseTextEvent(StringView text) { text_event_.Raise(text); }
+
+void OsxInputMethodContextPrivate::PerformSel(SEL sel) {
+  // [window_->p_->GetNSWindow() performSelector:sel];
+}
+
+void OsxInputMethodContextPrivate::Activate() { is_enabled_ = true; }
+
+void OsxInputMethodContextPrivate::Deactivate() {
+  input_method_context_->CompleteComposition();
+  is_enabled_ = false;
+}
+}
+
+OsxInputMethodContext::OsxInputMethodContext(OsxWindow* window)
+    : OsxGuiResource(window->GetUiApplication()) {
+  p_ = std::make_unique<details::OsxInputMethodContextPrivate>(this, window);
+}
+
+OsxInputMethodContext::~OsxInputMethodContext() {}
+
+void OsxInputMethodContext::EnableIME() { p_->Activate(); }
+
+void OsxInputMethodContext::DisableIME() { p_->Deactivate(); }
+
+bool OsxInputMethodContext::ShouldManuallyDrawCompositionText() { return true; }
+
+void OsxInputMethodContext::CompleteComposition() {
+  // TODO: Implement this.
+}
+
+void OsxInputMethodContext::CancelComposition() {
+  [[NSTextInputContext currentInputContext] discardMarkedText];
+}
+
+CompositionText OsxInputMethodContext::GetCompositionText() { return p_->composition_text_; }
+
+void OsxInputMethodContext::SetCandidateWindowPosition(const Point& point) {
+  p_->SetCandidateWindowPosition(point);
+}
+
+IEvent<std::nullptr_t>* OsxInputMethodContext::CompositionStartEvent() {
+  return &p_->composition_start_event_;
+}
+
+IEvent<std::nullptr_t>* OsxInputMethodContext::CompositionEndEvent() {
+  return &p_->composition_end_event_;
+}
+
+IEvent<std::nullptr_t>* OsxInputMethodContext::CompositionEvent() {
+  return &p_->composition_event_;
+}
+
+IEvent<StringView>* OsxInputMethodContext::TextEvent() { return &p_->text_event_; }
+
+bool OsxInputMethodContext::IsEnabled() { return p_->is_enabled_; }
+}