Platform::Web::Dialog::OpenFile の挙動の確認

siv_web_dialog.cpp

# include <Siv3D.hpp> // OpenSiv3D v0.6

# if defined(SIV3D_WEBGPU_BACKEND)
SIV3D_SET(EngineOption::Renderer::WebGPU)
# endif

void Main()
{
    Scene::SetBackground(ColorF{ 0 });

    // OpenFile の結果
    AsyncTask<Optional<String>> filePathTask;

    // OpenFiles の結果
    AsyncTask<Array<String>> filePathsTask;

    while (System::Update())
    { 
        if (SimpleGUI::ButtonAt(U"OpenFile", Scene::CenterF().movedBy(0, -24)))
        {
            filePathTask = Platform::Web::Dialog::OpenFile();
        }

        if (SimpleGUI::ButtonAt(U"OpenFiles", Scene::CenterF().movedBy(0, 24)))
        {
            filePathsTask = Platform::Web::Dialog::OpenFiles();
        }

        if (filePathTask.isReady())
        {
            Print << U"OpenFile ==> Task is ready";

            const auto filePath = filePathTask.get();

            if (filePath)
            {
                Print << U"path=" + (*filePath);
            }
            else
            {
                Print << U"no file";
            }
        }

        if (filePathsTask.isReady())
        {
            Print << U"OpenFiles ==> Task is ready";

            const auto filePaths = filePathsTask.get();

            if (not filePaths.isEmpty())
            {
                for (auto& path : filePaths)
                {
                    Print << path;
                }
            }
            else
            {
                Print << U"no file";
            }
        }
    }
}