Automatically add missing hotkeys to the global input config (#4003)

src/common/config.cpp

@@ -1,7 +1,8 @@
-// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-FileCopyrightText: Copyright 2025-2026 shadPS4 Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <fstream>
+#include <map>
 #include <optional>
 #include <string>
 #include <fmt/core.h>
@@ -14,6 +15,8 @@
 #include "common/path_util.h"
 #include "common/scm_rev.h"
 
+#include "input/input_handler.h"
+
 using std::nullopt;
 using std::optional;
 using std::string;
@@ -1289,19 +1292,6 @@ void setDefaultValues(bool is_game_specific) {
 constexpr std::string_view GetDefaultGlobalConfig() {
     return R"(# Anything put here will be loaded for all games,
 # alongside the game's config or default.ini depending on your preference.
-
-hotkey_renderdoc_capture = f12
-hotkey_fullscreen = f11
-hotkey_show_fps = f10
-hotkey_pause = f9
-hotkey_reload_inputs = f8
-hotkey_toggle_mouse_to_joystick = f7
-hotkey_toggle_mouse_to_gyro = f6
-hotkey_toggle_mouse_to_touchpad = delete
-hotkey_quit = lctrl, lshift, end
-
-hotkey_volume_up = kpplus
-hotkey_volume_down = kpminus
 )";
 }
 
@@ -1379,7 +1369,7 @@ analog_deadzone = rightjoystick, 2, 127
 override_controller_color = false, 0, 0, 255
 )";
 }
-std::filesystem::path GetFoolproofInputConfigFile(const string& game_id) {
+std::filesystem::path GetInputConfigFile(const string& game_id) {
     // Read configuration file of the game, and if it doesn't exist, generate it from default
     // If that doesn't exist either, generate that from getDefaultConfig() and try again
     // If even the folder is missing, we start with that.
@@ -1418,6 +1408,39 @@ std::filesystem::path GetFoolproofInputConfigFile(const string& game_id) {
             }
         }
     }
+    if (game_id == "global") {
+        std::map<string, string> default_bindings_to_add = {
+            {"hotkey_renderdoc_capture", "f12"},
+            {"hotkey_fullscreen", "f11"},
+            {"hotkey_show_fps", "f10"},
+            {"hotkey_pause", "f9"},
+            {"hotkey_reload_inputs", "f8"},
+            {"hotkey_toggle_mouse_to_joystick", "f7"},
+            {"hotkey_toggle_mouse_to_gyro", "f6"},
+            {"hotkey_toggle_mouse_to_touchpad", "delete"},
+            {"hotkey_quit", "lctrl, lshift, end"},
+            {"hotkey_volume_up", "kpplus"},
+            {"hotkey_volume_down", "kpminus"},
+        };
+        std::ifstream global_in(config_file);
+        string line;
+        while (std::getline(global_in, line)) {
+            line.erase(std::remove_if(line.begin(), line.end(),
+                                      [](unsigned char c) { return std::isspace(c); }),
+                       line.end());
+            std::size_t equal_pos = line.find('=');
+            if (equal_pos == std::string::npos) {
+                continue;
+            }
+            std::string output_string = line.substr(0, equal_pos);
+            default_bindings_to_add.erase(output_string);
+        }
+        global_in.close();
+        std::ofstream global_out(config_file, std::ios::app);
+        for (auto const& b : default_bindings_to_add) {
+            global_out << b.first << " = " << b.second << "\n";
+        }
+    }
 
     // If game-specific config doesn't exist, create it from the default config
     if (!std::filesystem::exists(config_file)) {

src/common/config.h

@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-FileCopyrightText: Copyright 2025-2026 shadPS4 Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
@@ -183,6 +183,6 @@ std::filesystem::path getAddonInstallDir();
 void setDefaultValues(bool is_game_specific = false);
 
 constexpr std::string_view GetDefaultGlobalConfig();
-std::filesystem::path GetFoolproofInputConfigFile(const std::string& game_id = "");
+std::filesystem::path GetInputConfigFile(const std::string& game_id = "");
 
 }; // namespace Config

src/input/input_handler.cpp

@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
+// SPDX-FileCopyrightText: Copyright 2024-2026 shadPS4 Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "input_handler.h"
@@ -200,6 +200,8 @@ InputBinding GetBindingFromString(std::string& line) {
             input = InputID(InputType::Axis, string_to_axis_map.at(t).axis);
         } else if (string_to_cbutton_map.find(t) != string_to_cbutton_map.end()) {
             input = InputID(InputType::Controller, string_to_cbutton_map.at(t));
+        } else if (string_to_hotkey_map.find(t) != string_to_hotkey_map.end()) {
+            input = InputID(InputType::Controller, string_to_hotkey_map.at(t));
         } else {
             // Invalid token found; return default binding
             LOG_DEBUG(Input, "Invalid token found: {}", t);
@@ -220,8 +222,8 @@ InputBinding GetBindingFromString(std::string& line) {
 
 void ParseInputConfig(const std::string game_id = "") {
     std::string game_id_or_default = Config::GetUseUnifiedInputConfig() ? "default" : game_id;
-    const auto config_file = Config::GetFoolproofInputConfigFile(game_id_or_default);
-    const auto global_config_file = Config::GetFoolproofInputConfigFile("global");
+    const auto config_file = Config::GetInputConfigFile(game_id_or_default);
+    const auto global_config_file = Config::GetInputConfigFile("global");
 
     // we reset these here so in case the user fucks up or doesn't include some of these,
     // we can fall back to default
@@ -396,13 +398,16 @@ void ParseInputConfig(const std::string game_id = "") {
         InputBinding binding = GetBindingFromString(input_string);
         BindingConnection connection(InputID(), nullptr);
         auto button_it = string_to_cbutton_map.find(output_string);
+        if (button_it == string_to_cbutton_map.end()) {
+            button_it = string_to_hotkey_map.find(output_string);
+        }
         auto axis_it = string_to_axis_map.find(output_string);
         if (binding.IsEmpty()) {
             LOG_WARNING(Input, "Invalid format at line: {}, data: \"{}\", skipping line.",
                         lineCount, line);
             return;
         }
-        if (button_it != string_to_cbutton_map.end()) {
+        if (button_it != string_to_hotkey_map.end()) {
             connection = BindingConnection(
                 binding, &*std::ranges::find(output_array, ControllerOutput(button_it->second)));
             connections.insert(connections.end(), connection);

src/input/input_handler.h

@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
+// SPDX-FileCopyrightText: Copyright 2024-2026 shadPS4 Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
@@ -138,6 +138,8 @@ const std::map<std::string, u32> string_to_cbutton_map = {
     {"rpaddle_high", SDL_GAMEPAD_BUTTON_RIGHT_PADDLE1},
     {"rpaddle_low", SDL_GAMEPAD_BUTTON_RIGHT_PADDLE2},
     {"mouse_gyro_roll_mode", MOUSE_GYRO_ROLL_MODE},
+};
+const std::map<std::string, u32> string_to_hotkey_map = {
     {"hotkey_pause", HOTKEY_PAUSE},
     {"hotkey_fullscreen", HOTKEY_FULLSCREEN},
     {"hotkey_show_fps", HOTKEY_SIMPLE_FPS},