LRESULT Toolbar::WindowProcessMessages()

in src/modules/videoconference/VideoConferenceModule/Toolbar.cpp [46:189]
129 lines of code
25 McCabe index (conditional complexity)

LRESULT Toolbar::WindowProcessMessages(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
{
    switch (msg)
    {
    case WM_DESTROY:
        return 0;
    case WM_LBUTTONDOWN:
    {
        int x = GET_X_LPARAM(lparam);
        int y = GET_Y_LPARAM(lparam);

        if (x < 322 / 2)
        {
            VideoConferenceModule::reverseMicrophoneMute();
        }
        else
        {
            VideoConferenceModule::reverseVirtualCameraMuteState();
        }

        return DefWindowProcW(hwnd, msg, wparam, lparam);
    }
    case WM_CREATE:
    case WM_PAINT:
    {
        PAINTSTRUCT ps;
        HDC hdc;

        hdc = BeginPaint(hwnd, &ps);

        Gdiplus::Graphics graphic(hdc);

        ToolbarImages* themeImages = &toolbar->darkImages;

        if (toolbar->theme == L"light" || (toolbar->theme == L"system" && !WindowsColors::is_dark_mode()))
        {
            themeImages = &toolbar->lightImages;
        }
        else
        {
            themeImages = &toolbar->darkImages;
        }
        Gdiplus::Image* toolbarImage = nullptr;
        if (!toolbar->cameraInUse)
        {
            if (toolbar->microphoneMuted)
            {
                toolbarImage = themeImages->camUnusedMicOff;
            }
            else
            {
                toolbarImage = themeImages->camUnusedMicOn;
            }
        }
        else if (toolbar->microphoneMuted)
        {
            if (toolbar->cameraMuted)
            {
                toolbarImage = themeImages->camOffMicOff;
            }
            else
            {
                toolbarImage = themeImages->camOnMicOff;
            }
        }
        else
        {
            if (toolbar->cameraMuted)
            {
                toolbarImage = themeImages->camOffMicOn;
            }
            else
            {
                toolbarImage = themeImages->camOnMicOn;
            }
        }
        graphic.DrawImage(toolbarImage, 0, 0, toolbarImage->GetWidth(), toolbarImage->GetHeight());

        EndPaint(hwnd, &ps);
        break;
    }
    case WM_TIMER:
    {
        if (toolbar->generalSettingsUpdateScheduled)
        {
            instance->onGeneralSettingsChanged();
            toolbar->generalSettingsUpdateScheduled = false;
        }
        if (toolbar->moduleSettingsUpdateScheduled)
        {
            instance->onModuleSettingsChanged();
            toolbar->moduleSettingsUpdateScheduled = false;
        }

        toolbar->cameraInUse = VideoConferenceModule::getVirtualCameraInUse();

        InvalidateRect(hwnd, NULL, NULL);

        using namespace std::chrono;
        const auto nowMillis = duration_cast<milliseconds>(system_clock::now().time_since_epoch()).count();
        const bool showOverlayTimeout = nowMillis - toolbar->lastTimeCamOrMicMuteStateChanged > OVERLAY_SHOW_TIME;

        static bool previousShow = false;
        bool show = false;

        if (toolbar->cameraInUse)
        {
            show = toolbar->HideToolbarWhenUnmuted ? toolbar->microphoneMuted || toolbar->cameraMuted : true;
        }
        else if (toolbar->previouscameraInUse)
        {
            VideoConferenceModule::unmuteAll();
        }
        else
        {
            show = toolbar->microphoneMuted;
        }
        show = show || !showOverlayTimeout;
        if (show)
        {
            ShowWindow(hwnd, SW_SHOW);
        }
        else
        {
            ShowWindow(hwnd, SW_HIDE);
        }
        if (previousShow != show)
        {
            previousShow = show;
            LOG(show ? "Toolbar visibility changed to shown" : "Toolbar visibility changed to hidden");
        }

        KillTimer(hwnd, toolbar->nTimerId);
        toolbar->previouscameraInUse = toolbar->cameraInUse;
        break;
    }
    default:
        return DefWindowProcW(hwnd, msg, wparam, lparam);
    }

    toolbar->nTimerId = SetTimer(hwnd, 101, REFRESH_RATE, nullptr);

    return DefWindowProcW(hwnd, msg, wparam, lparam);
}