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Utilities: Add a simple utility for debugging input events

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This helps debugging whether input device drivers work correctly.
This commit is contained in:
Sönke Holz
2026-01-03 13:05:36 +01:00
committed by Sönke Holz
parent 4c5bb357b2
commit 839fd64912
2 changed files with 65 additions and 0 deletions
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2
Userland/Utilities/CMakeLists.txt
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@@ -78,6 +78,7 @@ set(CMD_SOURCES_CPP
imgcmp.cpp
ini.cpp
init.cpp
inputdbg.cpp
install.cpp
isobmff.cpp
jbig2-from-json.cpp
@@ -335,6 +336,7 @@ target_link_libraries(image PRIVATE LibGfx)
target_link_libraries(image2bin PRIVATE LibGfx)
target_link_libraries(imgcmp PRIVATE LibGfx)
target_link_libraries(ini PRIVATE LibFileSystem)
target_link_libraries(inputdbg PRIVATE LibGUI)
target_link_libraries(install-bin PRIVATE LibFileSystem)
target_link_libraries(isobmff PRIVATE LibGfx)
target_link_libraries(jbig2-from-json PRIVATE LibGfx)

63
Userland/Utilities/inputdbg.cpp Normal file
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@@ -0,0 +1,63 @@
/*
* Copyright (c) 2026, Sönke Holz <soenke.holz@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibGUI/Application.h>
#include <LibGUI/Window.h>
#include <LibMain/Main.h>
class InputDebugWidget final : public GUI::Widget {
C_OBJECT(InputDebugWidget);
private:
virtual void keydown_event(GUI::KeyEvent& event) override
{
bool is_keypad = (event.modifiers() & Mod_Keypad) != 0;
outln("KeyDown: key={}, code point={:#x}, is keypad?={}, scancode={:#x}, map entry index={:#x}",
key_code_to_string(event.key()), event.code_point(), is_keypad, event.scancode(), event.map_entry_index());
}
virtual void keyup_event(GUI::KeyEvent& event) override
{
bool is_keypad = (event.modifiers() & Mod_Keypad) != 0;
outln("KeyUp: key={}, code point={:#x}, is keypad?={}, scancode={:#x}, map entry index={:#x}",
key_code_to_string(event.key()), event.code_point(), is_keypad, event.scancode(), event.map_entry_index());
}
virtual void mousemove_event(GUI::MouseEvent& event) override
{
outln("MouseMove: x={}, y={}", event.x(), event.y());
}
virtual void mousedown_event(GUI::MouseEvent& event) override
{
outln("MouseDown: button={}", GUI::mouse_button_to_string(event.button()));
}
virtual void mouseup_event(GUI::MouseEvent& event) override
{
outln("MouseUp: button={}", GUI::mouse_button_to_string(event.button()));
}
virtual void mousewheel_event(GUI::MouseEvent& event) override
{
outln("MouseWheel: dx={}, dy={}, raw dx={}, raw dy={}",
event.wheel_delta_x(), event.wheel_delta_y(), event.wheel_raw_delta_x(), event.wheel_raw_delta_y());
}
};
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
auto app = TRY(GUI::Application::create(arguments));
auto window = TRY(GUI::Window::try_create());
window->set_title("inputdbg");
window->resize(200, 200);
window->show();
auto input_debug_widget = window->set_main_widget<InputDebugWidget>();
return app->exec();
}