form_text_input doesn't respond after 2 lines

Noamwe

Hi all,

I added to an experiment a form_text_input (from the plugin) and for some reason after typing two lines, the text box stops responding (see attached photo where it stopped responding). Any idea what seems to be the problem?

sebastiaan

Hi Noam,

Thanks for pointing this out! It's certainly a bug, and I've filed an issue for it. For now I'm not sure what causes it. But as a workaround you can use a different backend, because the issue only affects the xpyriment backend.

Cheers!
Sebastiaan

Noamwe

Thanks Sebastian, I switched to psycho backend as you suggested and now it works fine.

Noamwe

Hi again, I think I may have found another bug. When using psycho backend, you can't use CAPS or any punctuation marks in the text_input form.
When using Legacy everything seems to be fine but I'm hesitant about using it because I have read that timing is not ideal.

sebastiaan

HI Noam,

Thanks again for pointing this out.

The issue with the xpyriment backend will be fixed in the next maintenance release (3.2.7). For now, you can implement the fix by replacing the get_key() function with a fixed version, using the code below, which should go into the Prepare phase of an inline_script at the very start of the experiment.

The issue with the psycho backend is a bit trickier and I have to think about the best way to fix it. For now I filed another issue for it.

Cheers!
Sebastiaan

from openexp.backend import configurable
from openexp._mouse import xpyriment
import pygame
from pygame import *


@configurable
def get_click(self):

    buttonlist = self.buttonlist
    timeout = self.timeout
    pygame.mouse.set_visible(self.visible)
    start_time = pygame.time.get_ticks()
    time = start_time
    while True:
        time = pygame.time.get_ticks()
        # Process the input
        for event in pygame.event.get():
            if event.type == KEYDOWN:
                if event.key == pygame.K_ESCAPE:
                    self.experiment.pause()
                    continue
                pygame.event.post(event)
            if event.type == MOUSEBUTTONDOWN:
                if buttonlist is None or event.button in buttonlist:
                    pygame.mouse.set_visible(self._cursor_shown)
                    return event.button, self.from_xy(event.pos), time
        if timeout is not None and time - start_time >= timeout:
            break
    pygame.mouse.set_visible(self._cursor_shown)
    return None, None, time


xpyriment.xpyriment.get_click = get_click

Noamwe

Thanks Sebastian, the fix works and I will carry on with the xpyriment backend using the fix you offered.

Best,

Noam