Drag & drop file into webview

[EmberLightVFX]

I really need to be able to drag and drop files and folders into the webview and get the objects full path.
It's impossible to get the objects path using javascript. It's a safety mechanism.

But it is possible to get the path using pywebview's dom https://pywebview.flowrl.com/examples/drag_drop.html !

I have tried adding the above code into native_module.py and it works as wanted!

The problem now is how to make the pywebview instance and NiceGUI communicate with each other.
app.native.main_window.dom always returns None for me...

The best would be if there is some way to fire events to get the data, like ui.on("drop", my_func).

Thoughts?

[rodja]

Hello @EmberLightVFX. That sounds interesting. The communication between pywebview and NiceGUI is tricky because they must run in separate processes. We use multiprocessing.Queue for this:

nicegui/nicegui/server.py

Lines 15 to 16 in 874b5ab

	method_queue: Optional[multiprocessing.Queue] = None
	response_queue: Optional[multiprocessing.Queue] = None

But firing an event from JavaScript may be a smart work around. @polaar had some experiment going in this regard: #283 (reply in thread).

[EmberLightVFX]

I created a working PR here: #3378
I got the information out from the mutliprocessing thread but I'm stuck trying to get it into the current running ui-instance so I could run something like ui.notify(item)