1 files changed, 0 insertions, 324 deletions
diff --git a/src/win/native/input_method.cpp b/src/win/native/input_method.cpp
deleted file mode 100644
index dba2b1eb..00000000
--- a/src/win/native/input_method.cpp
+++ /dev/null
@@ -1,324 +0,0 @@
-#include "cru/win/native/input_method.hpp"
-
-#include "cru/common/logger.hpp"
-#include "cru/platform/check.hpp"
-#include "cru/win/exception.hpp"
-#include "cru/win/native/window.hpp"
-#include "cru/win/string.hpp"
-#include "dpi_util.hpp"
-
-#include <vector>
-
-namespace cru::platform::native::win {
-AutoHIMC::AutoHIMC(HWND hwnd) : hwnd_(hwnd) {
-  Expects(hwnd);
-  handle_ = ::ImmGetContext(hwnd);
-}
-
-AutoHIMC::AutoHIMC(AutoHIMC&& other)
-    : hwnd_(other.hwnd_), handle_(other.handle_) {
-  other.hwnd_ = nullptr;
-  other.handle_ = nullptr;
-}
-
-AutoHIMC& AutoHIMC::operator=(AutoHIMC&& other) {
-  if (this != &other) {
-    Object::operator=(std::move(other));
-    this->hwnd_ = other.hwnd_;
-    this->handle_ = other.handle_;
-    other.hwnd_ = nullptr;
-    other.handle_ = nullptr;
-  }
-  return *this;
-}
-
-AutoHIMC::~AutoHIMC() {
-  if (handle_) {
-    if (!::ImmReleaseContext(hwnd_, handle_))
-      log::Warn("AutoHIMC: Failed to release HIMC.");
-  }
-}
-
-// copied from chromium
-namespace {
-// Determines whether or not the given attribute represents a target
-// (a.k.a. a selection).
-bool IsTargetAttribute(char attribute) {
-  return (attribute == ATTR_TARGET_CONVERTED ||
-          attribute == ATTR_TARGET_NOTCONVERTED);
-}
-// Helper function for ImeInput::GetCompositionInfo() method, to get the target
-// range that's selected by the user in the current composition string.
-void GetCompositionTargetRange(HIMC imm_context, int* target_start,
-                               int* target_end) {
-  int attribute_size =
-      ::ImmGetCompositionString(imm_context, GCS_COMPATTR, NULL, 0);
-  if (attribute_size > 0) {
-    int start = 0;
-    int end = 0;
-    std::vector<char> attribute_data(attribute_size);
-    ::ImmGetCompositionString(imm_context, GCS_COMPATTR, attribute_data.data(),
-                              attribute_size);
-    for (start = 0; start < attribute_size; ++start) {
-      if (IsTargetAttribute(attribute_data[start])) break;
-    }
-    for (end = start; end < attribute_size; ++end) {
-      if (!IsTargetAttribute(attribute_data[end])) break;
-    }
-    if (start == attribute_size) {
-      // This composition clause does not contain any target clauses,
-      // i.e. this clauses is an input clause.
-      // We treat the whole composition as a target clause.
-      start = 0;
-      end = attribute_size;
-    }
-    *target_start = start;
-    *target_end = end;
-  }
-}
-// Helper function for ImeInput::GetCompositionInfo() method, to get underlines
-// information of the current composition string.
-CompositionClauses GetCompositionClauses(HIMC imm_context, int target_start,
-                                         int target_end) {
-  CompositionClauses result;
-  int clause_size =
-      ::ImmGetCompositionString(imm_context, GCS_COMPCLAUSE, NULL, 0);
-  int clause_length = clause_size / sizeof(std::uint32_t);
-  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);
-    for (int i = 0; i < clause_length - 1; ++i) {
-      CompositionClause clause;
-      clause.start = clause_data[i];
-      clause.end = clause_data[i + 1];
-      clause.target = false;
-      // Use thick underline for the target clause.
-      if (clause.start >= target_start && clause.end <= target_end) {
-        clause.target = true;
-      }
-      result.push_back(clause);
-    }
-  }
-  return result;
-}
-
-std::wstring GetString(HIMC imm_context) {
-  LONG string_size =
-      ::ImmGetCompositionString(imm_context, GCS_COMPSTR, NULL, 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.
-
-  auto w_text = GetString(imm_context);
-
-  int w_length = static_cast<int>(w_text.length());
-  // Find out the range selected by the user.
-  int w_target_start = w_length;
-  int w_target_end = w_length;
-  GetCompositionTargetRange(imm_context, &w_target_start, &w_target_end);
-
-  auto clauses =
-      GetCompositionClauses(imm_context, w_target_start, w_target_end);
-
-  int w_cursor = ::ImmGetCompositionString(imm_context, GCS_CURSORPOS, NULL, 0);
-
-  auto text = platform::win::ToUtf8String(w_text);
-  for (auto& clause : clauses) {
-    clause.start = platform::win::IndexUtf16ToUtf8(w_text, clause.start, text);
-    clause.end = platform::win::IndexUtf16ToUtf8(w_text, clause.end, text);
-  }
-  int cursor = platform::win::IndexUtf16ToUtf8(w_text, w_cursor, text);
-
-  return CompositionText{std::move(text), std::move(clauses),
-                         TextRange{cursor}};
-}
-
-}  // namespace
-
-WinInputMethodContext::WinInputMethodContext(
-    gsl::not_null<WinNativeWindow*> window)
-    : native_window_resolver_(window->GetResolver()) {
-  event_revoker_guards_.push_back(
-      EventRevokerGuard(window->NativeMessageEvent()->AddHandler(
-          std::bind(&WinInputMethodContext::OnWindowNativeMessage, this,
-                    std::placeholders::_1))));
-}
-
-WinInputMethodContext::~WinInputMethodContext() {}
-
-void WinInputMethodContext::EnableIME() {
-  const auto native_window = Resolve(native_window_resolver_.get());
-  if (native_window == nullptr) return;
-  const auto hwnd = native_window->GetWindowHandle();
-
-  if (::ImmAssociateContextEx(hwnd, nullptr, IACE_DEFAULT) == FALSE) {
-    log::Warn("WinInputMethodContext: Failed to enable ime.");
-  }
-}
-
-void WinInputMethodContext::DisableIME() {
-  const auto native_window = Resolve(native_window_resolver_.get());
-  if (native_window == nullptr) return;
-  const auto hwnd = native_window->GetWindowHandle();
-
-  AutoHIMC himc{hwnd};
-
-  if (!::ImmNotifyIME(himc.Get(), NI_COMPOSITIONSTR, CPS_COMPLETE, 0)) {
-    log::Warn(
-        "WinInputMethodContext: Failed to complete composition before disable "
-        "ime.");
-  }
-
-  if (::ImmAssociateContextEx(hwnd, nullptr, 0) == FALSE) {
-    log::Warn("WinInputMethodContext: Failed to disable ime.");
-  }
-}
-
-void WinInputMethodContext::CompleteComposition() {
-  auto optional_himc = TryGetHIMC();
-  if (!optional_himc.has_value()) return;
-  auto himc = *std::move(optional_himc);
-
-  if (!::ImmNotifyIME(himc.Get(), NI_COMPOSITIONSTR, CPS_COMPLETE, 0)) {
-    log::Warn("WinInputMethodContext: Failed to complete composition.");
-  }
-}
-
-void WinInputMethodContext::CancelComposition() {
-  auto optional_himc = TryGetHIMC();
-  if (!optional_himc.has_value()) return;
-  auto himc = *std::move(optional_himc);
-
-  if (!::ImmNotifyIME(himc.Get(), NI_COMPOSITIONSTR, CPS_CANCEL, 0)) {
-    log::Warn("WinInputMethodContext: Failed to complete composition.");
-  }
-}
-
-CompositionText WinInputMethodContext::GetCompositionText() {
-  auto optional_himc = TryGetHIMC();
-  if (!optional_himc.has_value()) return CompositionText{};
-  auto himc = *std::move(optional_himc);
-
-  return GetCompositionInfo(himc.Get());
-}
-
-void WinInputMethodContext::SetCandidateWindowPosition(const Point& point) {
-  auto optional_himc = TryGetHIMC();
-  if (!optional_himc.has_value()) return;
-  auto himc = *std::move(optional_himc);
-
-  ::CANDIDATEFORM form;
-  form.dwIndex = 1;
-  form.dwStyle = CFS_CANDIDATEPOS;
-  form.ptCurrentPos = DipToPi(point);
-
-  if (!::ImmSetCandidateWindow(himc.Get(), &form))
-    log::Debug(
-        "WinInputMethodContext: Failed to set input method candidate window "
-        "position.");
-}
-
-IEvent<std::nullptr_t>* WinInputMethodContext::CompositionStartEvent() {
-  return &composition_start_event_;
-}
-
-IEvent<std::nullptr_t>* WinInputMethodContext::CompositionEndEvent() {
-  return &composition_end_event_;
-};
-
-IEvent<std::nullptr_t>* WinInputMethodContext::CompositionEvent() {
-  return &composition_event_;
-}
-
-IEvent<std::string_view>* WinInputMethodContext::TextEvent() {
-  return &text_event_;
-}
-
-void WinInputMethodContext::OnWindowNativeMessage(
-    WindowNativeMessageEventArgs& args) {
-  const auto& message = args.GetWindowMessage();
-  switch (message.msg) {
-    case WM_CHAR: {
-      const auto c = static_cast<wchar_t>(message.w_param);
-      if (platform::win::IsSurrogatePair(c)) {
-        // I don't think this will happen because normal key strike without ime
-        // should only trigger ascci character. If it is a charater from
-        // supplementary planes, it should be handled with ime messages.
-        log::Warn(
-            "WinInputMethodContext: A WM_CHAR message for character from "
-            "supplementary planes is ignored.");
-      } else {
-        wchar_t s[1] = {c};
-        auto str = platform::win::ToUtf8String({s, 1});
-        text_event_.Raise(str);
-      }
-      args.HandleWithResult(0);
-      break;
-    }
-    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();
-        text_event_.Raise(result_string);
-      }
-      break;
-    }
-    case WM_IME_STARTCOMPOSITION: {
-      composition_start_event_.Raise(nullptr);
-      break;
-    }
-    case WM_IME_ENDCOMPOSITION: {
-      composition_end_event_.Raise(nullptr);
-      break;
-    }
-  }
-}
-
-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;
-  const auto hwnd = native_window->GetWindowHandle();
-  return AutoHIMC{hwnd};
-}
-
-WinInputMethodManager::WinInputMethodManager(WinUiApplication*) {}
-
-WinInputMethodManager::~WinInputMethodManager() {}
-
-std::unique_ptr<IInputMethodContext> WinInputMethodManager::GetContext(
-    INativeWindow* window) {
-  Expects(window);
-  const auto w = CheckPlatform<WinNativeWindow>(window, GetPlatformId());
-  return std::make_unique<WinInputMethodContext>(w);
-}
-}  // namespace cru::platform::native::win