Keep reference to an arbitrary vanilla window for later use

bahman

Hi,

I'm trying to find a window by assigning a __name__ attribute to it. This used to work in RF1. Could you please direct me on how to get the window using the below example in RF3?

from mojo.roboFont import OpenWindow
from vanilla import *

WIN_KEY = 'test'

class WindowDemo(object):
    __name__ = WIN_KEY
    def __init__(self):
        self.w = Window((200, 70), "Window Demo")
        self.w.open()

def GetWindow(key):
	from AppKit import NSApp
	for w in NSApp().orderedWindows():
		delegate = w.delegate()
		if delegate:
			if not hasattr(delegate, "vanillaWrapper"):
				continue
			vanillaWrapper = delegate.vanillaWrapper()
			if hasattr(vanillaWrapper, "__name__") and vanillaWrapper.__name__ == key:
				return vanillaWrapper.w

OpenWindow(WindowDemo)
print(GetWindow(WIN_KEY))

okaytype

Well that doesn't surprise me since I have no idea what I'm doing. I'll read up on notifications. It would be helpful to know why this is bad though.

frederik

wait ... a ... second! this is bad coding :)

if two views needs to know something from each other much better to send a notification and retrieve data from there.

okaytype

Great question, I've been wanting to figure how to do this for a while. I made a pair of scripts to test how it would work to get input from one window into another. It works, but things break if I remove the Button from the Set window.

from vanilla import Window, EditText, Button
import weakref

WIN_KEY = 'VanillaObjectWindow'

class setVanillaObject(object):

    __name__ = WIN_KEY  
    def __init__(self):
        self.windowname = 'Set'
        self.w = Window((333, 80), self.windowname)
        self.w.vanillaWrapper = weakref.ref(self)
        self.w.zzzzzzzz = EditText((12, 10, -12, 22), 'Placeholder Placeholder Placeholder')
        self.w.b = Button((12, 34, -12, 22), 'Button', callback=self.do) # doesn't work without this ??
        self.w.open()

    def do(self, sender):
        print(self.w)

setVanillaObject()

from vanilla import Window, Button, EditText
from AppKit import NSApp

WIN_KEY = 'VanillaObjectWindow'

class getVanillaObject(object):

    def __init__(self):
        self.windowname = 'Get'
        self.w = Window((333, 70), self.windowname)
        self.w.t = EditText((12, 10, -12, 22), '...')
        self.w.b =   Button((12, 34, -12, 22), 'Get Placeholder from Set', callback=self.do)
        self.w.open()

    def do(self, sender):
        w = GetWindow(WIN_KEY)
        x = w.zzzzzzzz.get()
        self.w.t.set(x)

def GetWindow(key):
    from AppKit import NSApp
    for w in NSApp().orderedWindows():
        delegate = w.delegate()
        if delegate:
            if not hasattr(delegate, "vanillaWrapper"):
                continue
            vanillaWrapper = delegate.vanillaWrapper()
            if hasattr(vanillaWrapper, "__name__") and vanillaWrapper.__name__ == key:
                return vanillaWrapper.w

getVanillaObject()

gferreira

hello @bahman,

you have to set the vanillaWrapper yourself while creating the window controller, and connect it with a weakref:

self.w.vanillaWrapper = weakref.ref(self)

thanks @frederik for answering it :)

cheers!

SOLVED Keep reference to an arbitrary vanilla window for later use