From 2898b68fc4f7ff40844ddf5a1d0b59f76b06290f Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Tue, 21 Apr 2020 17:08:43 +0800
Subject: ...

---
 include/cru/platform/native/input_method.hpp | 2 ++
 include/cru/platform/native/window.hpp       | 1 -
 include/cru/win/native/input_method.hpp      | 3 +++
 include/cru/win/native/window.hpp            | 8 --------
 include/cru/win/string.hpp                   | 2 ++
 5 files changed, 7 insertions(+), 9 deletions(-)

(limited to 'include')

diff --git a/include/cru/platform/native/input_method.hpp b/include/cru/platform/native/input_method.hpp
index 4034be4e..c6413a7e 100644
--- a/include/cru/platform/native/input_method.hpp
+++ b/include/cru/platform/native/input_method.hpp
@@ -66,6 +66,8 @@ struct IInputMethodContext : virtual INativeResource {
 
   // Triggered every time composition text changes.
   virtual IEvent<std::nullptr_t>* CompositionEvent() = 0;
+
+  virtual IEvent<std::string_view>* TextEvent() = 0;
 };
 
 struct IInputMethodManager : virtual INativeResource {
diff --git a/include/cru/platform/native/window.hpp b/include/cru/platform/native/window.hpp
index 49b00023..57363a3b 100644
--- a/include/cru/platform/native/window.hpp
+++ b/include/cru/platform/native/window.hpp
@@ -57,7 +57,6 @@ struct INativeWindow : virtual INativeResource {
   virtual IEvent<NativeMouseButtonEventArgs>* MouseUpEvent() = 0;
   virtual IEvent<NativeKeyEventArgs>* KeyDownEvent() = 0;
   virtual IEvent<NativeKeyEventArgs>* KeyUpEvent() = 0;
-  virtual IEvent<std::string_view>* CharEvent() = 0;
 };
 
 // See INativeWindow for more info.
diff --git a/include/cru/win/native/input_method.hpp b/include/cru/win/native/input_method.hpp
index 8e17abd5..ff867f3f 100644
--- a/include/cru/win/native/input_method.hpp
+++ b/include/cru/win/native/input_method.hpp
@@ -61,6 +61,8 @@ class WinInputMethodContext : public WinNativeResource,
 
   IEvent<std::nullptr_t>* CompositionEvent() override;
 
+  IEvent<std::string_view>* TextEvent() override;
+
  private:
   void OnWindowNativeMessage(WindowNativeMessageEventArgs& args);
 
@@ -76,6 +78,7 @@ class WinInputMethodContext : public WinNativeResource,
   Event<std::nullptr_t> composition_start_event_;
   Event<std::nullptr_t> composition_end_event_;
   Event<std::nullptr_t> composition_event_;
+  Event<std::string_view> text_event_;
 };
 
 class WinInputMethodManager : public WinNativeResource,
diff --git a/include/cru/win/native/window.hpp b/include/cru/win/native/window.hpp
index 83497fa6..59b38ab5 100644
--- a/include/cru/win/native/window.hpp
+++ b/include/cru/win/native/window.hpp
@@ -72,7 +72,6 @@ class WinNativeWindow : public WinNativeResource, public virtual INativeWindow {
   IEvent<platform::native::NativeKeyEventArgs>* KeyUpEvent() override {
     return &key_up_event_;
   }
-  IEvent<std::string_view>* CharEvent() override { return &char_event_; };
 
   IEvent<WindowNativeMessageEventArgs&>* NativeMessageEvent() {
     return &native_message_event_;
@@ -109,7 +108,6 @@ class WinNativeWindow : public WinNativeResource, public virtual INativeWindow {
   void OnMouseWheelInternal(short delta, POINT point);
   void OnKeyDownInternal(int virtual_code);
   void OnKeyUpInternal(int virtual_code);
-  void OnCharInternal(wchar_t c);
 
   void OnActivatedInternal();
   void OnDeactivatedInternal();
@@ -146,14 +144,8 @@ class WinNativeWindow : public WinNativeResource, public virtual INativeWindow {
   Event<platform::native::NativeMouseButtonEventArgs> mouse_up_event_;
   Event<platform::native::NativeKeyEventArgs> key_down_event_;
   Event<platform::native::NativeKeyEventArgs> key_up_event_;
-  Event<std::string_view> char_event_;
 
   Event<WindowNativeMessageEventArgs&> native_message_event_;
-
-  // WM_CHAR may be sent twice successively with two utf-16 code units of
-  // surrogate pair when character is from supplementary planes. This field is
-  // used to save the previous one.
-  wchar_t last_wm_char_event_wparam_;
 };
 
 class WinNativeWindowResolver : public WinNativeResource,
diff --git a/include/cru/win/string.hpp b/include/cru/win/string.hpp
index b2bfd245..aec0e3d9 100644
--- a/include/cru/win/string.hpp
+++ b/include/cru/win/string.hpp
@@ -27,6 +27,8 @@ namespace cru::platform::win {
 std::string ToUtf8String(const std::wstring_view& string);
 std::wstring ToUtf16String(const std::string_view& string);
 
+inline bool IsSurrogatePair(wchar_t c) { return c >= 0xD800 && c <= 0xDFFF; }
+
 inline bool IsSurrogatePairLeading(wchar_t c) {
   return c >= 0xD800 && c <= 0xDBFF;
 }
-- 
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