From 24a95621e5118e39e1a6e05b17ef89f4ec2c8c01 Mon Sep 17 00:00:00 2001
From: ArchSav <96357545+ArchSav@users.noreply.github.com>
Date: Sat, 14 Mar 2026 00:48:01 +1100
Subject: input: add device specific binds (#13073)

Adds support for device-specific binds
---
 src/config/ConfigManager.cpp | 29 ++++++++++++++++++++++-------
 1 file changed, 22 insertions(+), 7 deletions(-)

(limited to 'src/config/ConfigManager.cpp')

diff --git a/src/config/ConfigManager.cpp b/src/config/ConfigManager.cpp
index 3e0a9957..e4632bb9 100644
--- a/src/config/ConfigManager.cpp
+++ b/src/config/ConfigManager.cpp
@@ -2542,6 +2542,7 @@ std::optional<std::string> CConfigManager::handleBind(const std::string& command
     bool       click           = false;
     bool       drag            = false;
     bool       submapUniversal = false;
+    bool       isPerDevice     = false;
     const auto BINDARGS        = command.substr(4);
 
     for (auto const& arg : BINDARGS) {
@@ -2566,6 +2567,7 @@ std::optional<std::string> CConfigManager::handleBind(const std::string& command
                 release = true;
                 break;
             case 'u': submapUniversal = true; break;
+            case 'k': isPerDevice = true; break;
             default: return "bind: invalid flag";
         }
     }
@@ -2579,13 +2581,14 @@ std::optional<std::string> CConfigManager::handleBind(const std::string& command
     if (click && drag)
         return "flags c and g are mutually exclusive";
 
-    const int  numbArgs = hasDescription ? 5 : 4;
+    const int  numbArgs = (hasDescription ? 5 : 4) + sc<int>(isPerDevice);
     const auto ARGS     = CVarList(value, numbArgs);
 
-    const int  DESCR_OFFSET = hasDescription ? 1 : 0;
+    const int  DESCR_OFFSET  = hasDescription ? 1 : 0;
+    const int  DEVICE_OFFSET = sc<int>(isPerDevice);
     if ((ARGS.size() < 3 && !mouse) || (ARGS.size() < 3 && mouse))
         return "bind: too few args";
-    else if ((ARGS.size() > sc<size_t>(4) + DESCR_OFFSET && !mouse) || (ARGS.size() > sc<size_t>(3) + DESCR_OFFSET && mouse))
+    else if ((ARGS.size() > sc<size_t>(4) + DESCR_OFFSET + DEVICE_OFFSET && !mouse) || (ARGS.size() > sc<size_t>(3) + DESCR_OFFSET + DEVICE_OFFSET && mouse))
         return "bind: too many args";
 
     std::set<xkb_keysym_t> KEYSYMS;
@@ -2604,11 +2607,13 @@ std::optional<std::string> CConfigManager::handleBind(const std::string& command
 
     const auto KEY = multiKey ? "" : ARGS[1];
 
-    const auto DESCRIPTION = hasDescription ? ARGS[2] : "";
+    const auto DEVICEARGS = isPerDevice ? ARGS[2] : "";
 
-    auto       HANDLER = ARGS[2 + DESCR_OFFSET];
+    const auto DESCRIPTION = hasDescription ? ARGS[2 + DEVICE_OFFSET] : "";
 
-    const auto COMMAND = mouse ? HANDLER : ARGS[3 + DESCR_OFFSET];
+    auto       HANDLER = ARGS[2 + DESCR_OFFSET + DEVICE_OFFSET];
+
+    const auto COMMAND = mouse ? HANDLER : ARGS[3 + DESCR_OFFSET + DEVICE_OFFSET];
 
     if (mouse)
         HANDLER = "mouse";
@@ -2628,6 +2633,16 @@ std::optional<std::string> CConfigManager::handleBind(const std::string& command
         return "Invalid mod, requested mod \"" + MODSTR + "\" is not a valid mod.";
     }
 
+    //[!]keyboard1 keyboard2 ...
+    bool                            deviceInclusive = false;
+    std::unordered_set<std::string> devices         = {};
+    if (!DEVICEARGS.empty()) {
+        deviceInclusive = DEVICEARGS[0] != '!';
+        for (const auto deviceString : std::ranges::views::split(DEVICEARGS.substr(deviceInclusive ? 0 : 1), ' ')) {
+            devices.emplace(std::string_view(deviceString));
+        }
+    }
+
     if ((!KEY.empty()) || multiKey) {
         SParsedKey parsedKey = parseKey(KEY);
 
@@ -2639,7 +2654,7 @@ std::optional<std::string> CConfigManager::handleBind(const std::string& command
         g_pKeybindManager->addKeybind(SKeybind{parsedKey.key, KEYSYMS,      parsedKey.keycode, parsedKey.catchAll, MOD,      MODS,           HANDLER,
                                                COMMAND,       locked,       m_currentSubmap,   DESCRIPTION,        release,  repeat,         longPress,
                                                mouse,         nonConsuming, transparent,       ignoreMods,         multiKey, hasDescription, dontInhibit,
-                                               click,         drag,         submapUniversal});
+                                               click,         drag,         submapUniversal,   deviceInclusive,    devices});
     }
 
     return {};
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