hyprctl: add submap request

fixes #7898

src/debug/HyprCtl.cpp

@@ -1627,6 +1627,14 @@ std::string getDescriptions(eHyprCtlOutputFormat format, std::string request) {
     return json;
 }
 
+std::string submapRequest(eHyprCtlOutputFormat format, std::string request) {
+    std::string submap = g_pKeybindManager->getCurrentSubmap();
+    if (submap.empty())
+        submap = "default";
+
+    return format == FORMAT_JSON ? std::format("{{\"{}\"}}\n", escapeJSONStrings(submap)) : (submap + "\n");
+}
+
 CHyprCtl::CHyprCtl() {
     registerCommand(SHyprCtlCommand{"workspaces", true, workspacesRequest});
     registerCommand(SHyprCtlCommand{"workspacerules", true, workspaceRulesRequest});
@@ -1648,6 +1656,7 @@ CHyprCtl::CHyprCtl() {
     registerCommand(SHyprCtlCommand{"configerrors", true, configErrorsRequest});
     registerCommand(SHyprCtlCommand{"locked", true, getIsLocked});
     registerCommand(SHyprCtlCommand{"descriptions", true, getDescriptions});
+    registerCommand(SHyprCtlCommand{"submap", true, submapRequest});
 
     registerCommand(SHyprCtlCommand{"monitors", false, monitorsRequest});
     registerCommand(SHyprCtlCommand{"reload", false, reloadRequest});

src/managers/KeybindManager.cpp

@@ -594,6 +594,10 @@ eMultiKeyCase CKeybindManager::mkBindMatches(const SKeybind keybind) {
     return mkKeysymSetMatches(keybind.sMkKeys, m_sMkKeys);
 }
 
+std::string CKeybindManager::getCurrentSubmap() {
+    return m_szCurrentSelectedSubmap;
+}
+
 SDispatchResult CKeybindManager::handleKeybinds(const uint32_t modmask, const SPressedKeyWithMods& key, bool pressed) {
     static auto     PDISABLEINHIBIT = CConfigValue<Hyprlang::INT>("binds:disable_keybind_grabbing");
     bool            found           = false;

src/managers/KeybindManager.hpp

@@ -96,6 +96,7 @@ class CKeybindManager {
     uint32_t                                                                     keycodeToModifier(xkb_keycode_t);
     void                                                                         clearKeybinds();
     void                                                                         shadowKeybinds(const xkb_keysym_t& doesntHave = 0, const uint32_t doesntHaveCode = 0);
+    std::string                                                                  getCurrentSubmap();
 
     std::unordered_map<std::string, std::function<SDispatchResult(std::string)>> m_mDispatchers;