PowerToys/src/modules/MouseUtils/FindMyMouse/dllmain.cpp

#include "pch.h"
#include <interface/powertoy_module_interface.h>
#include <common/SettingsAPI/settings_objects.h>
#include "trace.h"
#include "FindMyMouse.h"
#include <thread>
#include <common/utils/logger_helper.h>

extern "C" IMAGE_DOS_HEADER __ImageBase;

HMODULE m_hModule;

BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved)
{
    m_hModule = hModule;
    switch (ul_reason_for_call)
    {
    case DLL_PROCESS_ATTACH:
        Trace::RegisterProvider();
        break;
    case DLL_THREAD_ATTACH:
    case DLL_THREAD_DETACH:
        break;
    case DLL_PROCESS_DETACH:
        Trace::UnregisterProvider();
        break;
    }
    return TRUE;
}

// The PowerToy name that will be shown in the settings.
const static wchar_t* MODULE_NAME = L"FindMyMouse";
// Add a description that will we shown in the module settings page.
const static wchar_t* MODULE_DESC = L"Focus the mouse pointer";

// Implement the PowerToy Module Interface and all the required methods.
class FindMyMouse : public PowertoyModuleIface
{
private:
    // The PowerToy state.
    bool m_enabled = false;

    // Load initial settings from the persisted values.
    void init_settings();

public:
    // Constructor
    FindMyMouse()
    {
        LoggerHelpers::init_logger(MODULE_NAME, L"ModuleInterface", LogSettings::findMyMouseLoggerName);
        init_settings();
    };

    // Destroy the powertoy and free memory
    virtual void destroy() override
    {
        delete this;
    }

    // Return the localized display name of the powertoy
    virtual const wchar_t* get_name() override
    {
        return MODULE_NAME;
    }

    // Return the non localized key of the powertoy, this will be cached by the runner
    virtual const wchar_t* get_key() override
    {
        return MODULE_NAME;
    }

    // Return JSON with the configuration options.
    virtual bool get_config(wchar_t* buffer, int* buffer_size) override
    {
        HINSTANCE hinstance = reinterpret_cast<HINSTANCE>(&__ImageBase);

        // Create a Settings object.
        PowerToysSettings::Settings settings(hinstance, get_name());
        settings.set_description(MODULE_DESC);

        return settings.serialize_to_buffer(buffer, buffer_size);
    }

    // Signal from the Settings editor to call a custom action.
    // This can be used to spawn more complex editors.
    virtual void call_custom_action(const wchar_t* action) override
    {
    }

    // Called by the runner to pass the updated settings values as a serialized JSON.
    virtual void set_config(const wchar_t* config) override
    {
        try
        {
            // Parse the input JSON string.
            PowerToysSettings::PowerToyValues values =
                PowerToysSettings::PowerToyValues::from_json_string(config, get_key());

            values.save_to_settings_file();
        }
        catch (std::exception&)
        {
            // Improper JSON.
        }
    }

    // Enable the powertoy
    virtual void enable()
    {
        m_enabled = true;
        Trace::EnableFindMyMouse(true);
        std::thread([]() { FindMyMouseMain(m_hModule); }).detach();
    }

    // Disable the powertoy
    virtual void disable()
    {
        m_enabled = false;
        Trace::EnableFindMyMouse(false);
        FindMyMouseDisable();
    }

    // Returns if the powertoys is enabled
    virtual bool is_enabled() override
    {
        return m_enabled;
    }
};

// Load the settings file.
void FindMyMouse::init_settings()
{
    try
    {
        // Load and parse the settings file for this PowerToy.
        PowerToysSettings::PowerToyValues settings =
            PowerToysSettings::PowerToyValues::load_from_settings_file(FindMyMouse::get_key());
    }
    catch (std::exception&)
    {
        // Error while loading from the settings file. Let default values stay as they are.
    }
}

extern "C" __declspec(dllexport) PowertoyModuleIface* __cdecl powertoy_create()
{
    return new FindMyMouse();
}