Foundation for hangeul <-> alphabet switch feature

Author: yeshjho

Typoon/Typoon.vcxproj

@@ -31,6 +31,7 @@
     <ClCompile Include="platform\windows\main.cpp" />
     <ClCompile Include="platform\windows\window_focus.cpp" />
     <ClCompile Include="platform\windows\wnd_proc.cpp" />
+    <ClCompile Include="switch\switch_hangeul_alphabet.cpp" />
     <ClCompile Include="utils\config.cpp" />
     <ClCompile Include="utils\logger.cpp" />
     <ClCompile Include="utils\string.cpp" />
@@ -57,6 +58,7 @@
     <ClInclude Include="platform\windows\log.h" />
     <ClInclude Include="platform\windows\wnd_proc.h" />
     <ClInclude Include="resource.h" />
+    <ClInclude Include="switch\switch_hangeul_alphabet.h" />
     <ClInclude Include="utils\config.h" />
     <ClInclude Include="utils\json5_util.h" />
     <ClInclude Include="utils\logger.h" />

Typoon/Typoon.vcxproj.filters

@@ -84,6 +84,9 @@
     <ClCompile Include="platform\windows\crash_handler.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="switch\switch_hangeul_alphabet.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="utils\logger.h">
@@ -161,6 +164,9 @@
     <ClInclude Include="low_level\crash_handler.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="switch\switch_hangeul_alphabet.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="Typoon.rc">

Typoon/platform/windows/main.cpp

@@ -11,6 +11,7 @@
 #include "../../common/common.h"
 #include "../../match/trigger_trees_per_program.h"
 #include "../../parse/parse_match.h"
+#include "../../switch/switch_hangeul_alphabet.h"
 #include "../../utils/config.h"
 
 #include "log.h"
@@ -74,7 +75,9 @@ int wWinMain(HINSTANCE hInstance, [[maybe_unused]] HINSTANCE hPrevInstance, [[ma
     setup_trigger_trees(get_config().matchFilePath);
     update_trigger_tree_program_overrides(get_config().programOverrides);
     start_hot_key_watcher(window);
+    setup_switcher();
 
+    // TODO: Factor out non-platform-dependent code.
     FileChangeWatcher matchChangeWatcher;
     const auto lambdaAfterTreeReconstruct = [&matchChangeWatcher]()
         {
@@ -192,6 +195,7 @@ int wWinMain(HINSTANCE hInstance, [[maybe_unused]] HINSTANCE hPrevInstance, [[ma
     teardown_trigger_trees();
     end_hot_key_watcher();
     remove_tray_icon();
+    teardown_switcher();
 
 #ifdef _DEBUG
     fclose(fDummy);

Typoon/switch/switch_hangeul_alphabet.cpp

@@ -0,0 +1,53 @@
+#include "switch_hangeul_alphabet.h"
+
+#include <algorithm>
+
+#include "../input_multicast/input_multicast.h"
+#include "../utils/config.h"
+
+// TODO: listen for config change and resize - make a config change event
+std::wstring stroke;
+wchar_t letter_being_composed = 0;
+
+
+void on_input(const InputMessage(&inputs)[MAX_INPUT_COUNT], int length, bool clearAllAgents)
+{
+    if (clearAllAgents)
+    {
+        std::ranges::fill(stroke, L'\0');
+    }
+
+    for (int i = 0; i < length; i++)
+    {
+        const auto [inputLetter, isBeingComposed] = inputs[i];
+
+        if (isBeingComposed)
+        {
+            letter_being_composed = inputLetter;
+        }
+        else
+        {
+            std::ranges::shift_left(stroke, 1);
+            stroke.back() = inputLetter;
+        }
+    }
+}
+
+
+void setup_switcher()
+{
+    input_listeners.emplace_back("switch_hangeul_alphabet", on_input);
+    stroke.resize(get_config().strokeBuffer, 0);
+}
+
+
+void teardown_switcher()
+{
+    std::erase_if(input_listeners, [](const std::pair<std::string, InputListener>& pair) { return pair.first == "switch_hangeul_alphabet"; });
+}
+
+
+void switch_hangeul_alphabet()
+{
+    
+}

Typoon/switch/switch_hangeul_alphabet.h

@@ -0,0 +1,7 @@
+#pragma once
+
+
+void setup_switcher();
+void teardown_switcher();
+
+void switch_hangeul_alphabet();

Typoon/utils/config.cpp

@@ -66,6 +66,7 @@ struct ConfigForParse
     std::filesystem::path match_file_path = "match/matches.json5";
     int max_backspace_count = 5;
     std::string cursor_placeholder = "|_|";
+    int stroke_buffer = 15;
 
     bool notify_config_load = true;
     bool notify_match_load = true;
@@ -82,6 +83,7 @@ struct ConfigForParse
             std::move(match_file_path),
             max_backspace_count,
             { cursor_placeholder.begin(), cursor_placeholder.end() },
+            stroke_buffer,
             notify_config_load,
             notify_match_load,
             notify_on_off,
@@ -100,7 +102,8 @@ struct ConfigForParse
 };
 
 
-JSON5_CLASS(ConfigForParse, match_file_path, max_backspace_count, cursor_placeholder, notify_config_load, notify_match_load, notify_on_off, hotkey_toggle_on_off, hotkey_get_program_name, program_overrides)
+JSON5_CLASS(ConfigForParse, match_file_path, max_backspace_count, cursor_placeholder, stroke_buffer, 
+    notify_config_load, notify_match_load, notify_on_off, hotkey_toggle_on_off, hotkey_get_program_name, program_overrides)
 
 Config config;
 

Typoon/utils/config.h

@@ -21,6 +21,7 @@ struct Config
     std::filesystem::path matchFilePath;
     int maxBackspaceCount;
     std::wstring cursorPlaceholder;
+    int strokeBuffer;
 
     bool notifyConfigLoad;
     bool notifyMatchLoad;