Signal autoconnect does not work with signal names which contain hypens

Bug #890318 reported by David Planella on 2011-11-14
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
quickly (Ubuntu)
Undecided
Unassigned

Bug Description

While writing a small test app using the ubuntu-application template, I was trying to get the signal autoconnect feature to work, to no avail.

I then noticed that my "on_filechooserbutton1_file_set" handler in the code was ignored because the signal name is "file-set" (from GtkFileChooserButton), and the code quickly generates was trying to connect "on_filechooserbutton1_file-set" instead, which is not a valid Python identifier.

So when doing the autoconnects, the hyphens in signal names should be replaced by underscores while building the on_{widget}_{signal} handler names.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: quickly 11.10-0ubuntu4
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Mon Nov 14 18:05:37 2011
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=ca_ES:en
 PATH=(custom, no user)
 LANG=ca_ES.UTF-8
 LC_MESSAGES=ca_ES.UTF-8
 SHELL=/bin/bash
QuicklyDataPath: /usr/share/quickly
QuicklyTemplates:
 /usr/share/quickly/templates/ubuntu-pygame
 /usr/share/quickly/templates/ubuntu-cli
 /usr/share/quickly/templates/ubuntu-application
 /usr/share/quickly/templates/ubuntu-flash-game
QuicklyTemplatesDirectories: /usr/share/quickly/templates/
SourcePackage: quickly
UpgradeStatus: Upgraded to oneiric on 2011-09-06 (69 days ago)

Related branches

David Planella (dpm) wrote :
description: updated
Tony Byrne (tony-badwolf) wrote :

Hi David
 The underlying difficulty, widget names are any string: python names are restricted, was originally covered by some tools

logging of methods like "on_widget_signal" that were not automatically connected
an alias decorator that accepted any string and could be a target for automatic connection

However a later change to quickly hid the logging messages from the project_lib/Builder.py module.
If you want to see them you can use quickly run -vv

There was much discussion at the time between two approaches
automatically mangle glade names like ( "filechooserbutton1", "file-set" ) into python names like "on_filechooserbutton1_file_set"
inform quickly user (you) of the discrepancy using logging, if you turn on logging.

A choice was made to use logging because otherwise the user (you) would need to hold the mangling algorithm in your head
e.g. replace any of [".", ",", ", "-", "á", "é"] etc. by "_"

The blacklist approach (don't use "-") you suggest would be better as a whitelist (if the character is not allowed in a python name change it)

A counter proposal for a bug fix is
Default to have logging turned on for quickly run
turn on logging for quickly supplied boilerplate modules as well as user supplied modules

dino99 (9d9) wrote :

This version has expired, and quickly is no more maintained

Changed in quickly (Ubuntu):
status: New → Invalid
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