为 WebAssembly 加载 Qt 中的多个文件

Question

I need to use a file dialog in order to upload several files from client to server. I am aware about QFileDialog::getOpenFileContent() , but what about multiple files uploading (multiselect using file dialog in some directory) in Qt for WebAssembly? I don't mind against workaround.

I have tried

void QFileDialog::getOpenFileContent(const QString &nameFilter, const std::function<void (const QString &, const QByteArray &)> &fileOpenCompleted)

the signature says that I've got only one pair <name, content>. But I'd like to have multiple files selected and loaded using single dialog execution.

Answer 1

If you need multiple file support, use the HTML input tag, then you need to feed the files to the Qt app by using emscripten bindings, you can export a function to javascript, that way you can call it once the user has selected the files

<input type="file" id="files" multiple>

The details are quite complicated, but this is just an idea.