pidgin/pidgin

Fix the infinite resizing freeze
release-2.x.y
2022-04-15, Belgin Știrbu
0079467afee4
Fix the infinite resizing freeze

This appears related to libpango somehow, as in Debian
Bullseye, libpango splits URLs with dashes at the end,
but in Debian Bookworm, the URLs are not split with dashes
at the end, and the bug does not appear to be triggered
in Bookworm.

This patch makes the assumption that the gtkimhtml widgets
stored in a PidginConversation normally resize in an
alternating manner. However, when the bug is triggered,
only the "entry" gtkimhtml member of PidginConversation
resizes, so we allow "entry" to resize only up to 3 times
in a row.

Testing Done:
Compiled and tested on several desktop environments on a few
GNU/Linux distros by pasting the link mentioned
here https://issues.imfreedom.org/issue/PIDGIN-17413 moving
the cursor at the beginning of the buffer, and holding
the spacebar pressed.

Bugs closed: PIDGIN-16753, PIDGIN-16999, PIDGIN-17287, PIDGIN-17413, PIDGIN-17430, PIDGIN-17568, PIDGIN-17602

Reviewed at https://reviews.imfreedom.org/r/1342/
# This program takes a C source as the input and produces the list of
# all signals registered.
#
# Output is:
# <signal name="Changed">
# <arg name="new_value" type="b"/>
# </signal>
from __future__ import absolute_import, division, print_function
import re
import sys
# List "excluded" contains signals that shouldn't be exported via
# DBus. If you remove a signal from this list, please make sure
# that it does not break "make" with the configure option
# "--enable-dbus" turned on.
excluded = [\
# purple_dbus_signal_emit_purple prevents our "dbus-method-called"
# signal from being propagated to dbus.
"dbus-method-called",
]
registerregex = re.compile("purple_signal_register[^;]+\"([\w\-]+)\"[^;]+(purple_marshal_\w+)[^;]+;")
nameregex = re.compile('[-_][a-z]')
print("/* Generated by %s. Do not edit! */" % sys.argv[0])
print("const char *dbus_signals = ")
for match in registerregex.finditer(sys.stdin.read()):
signal = match.group(1)
marshal = match.group(2)
if signal in excluded:
continue
signal = nameregex.sub(lambda x:x.group()[1].upper(), '-'+signal)
print("\" <signal name='%s'>\\n\"" % signal)
args = marshal.split('_')
# ['purple', 'marshal', <return type>, '', args...]
if len(args) > 4:
for arg in args[4:]:
if arg == "POINTER":
type = 'p'
elif arg == "ENUM":
type = 'i'
elif arg == "INT":
type = 'i'
elif arg == "UINT":
type = 'u'
elif arg == "INT64":
type = 'x'
elif arg == "UINT64":
type = 't'
elif arg == "BOOLEAN":
type = 'b'
print("\" <arg type='%s'/>\\n\"" % type)
print("\" </signal>\\n\"")
print(";")