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/
/**
* @file glibcompat.h Compatibility for many glib versions.
* @ingroup core
*/
/* purple
*
* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
#ifndef PURPLE_GLIBCOMPAT_H
#define PURPLE_GLIBCOMPAT_H
#include <string.h>
#include <glib.h>
#if !GLIB_CHECK_VERSION(2,28,0)
static inline void
g_list_free_full(GList *l, GDestroyNotify free_func) {
GList *ll = NULL;
for(ll = l; ll != NULL; ll = ll->next) {
free_func(ll->data);
}
g_list_free(l);
}
static inline void
g_slist_free_full(GSList *l, GDestroyNotify free_func) {
GSList *ll = NULL;
for(ll = l; ll != NULL; ll = ll->next) {
free_func(ll->data);
}
g_slist_free(l);
}
#endif /* !GLIB_CHECK_VERSION(2,23,0) */
#if !GLIB_CHECK_VERSION(2,32,0)
# define G_GNUC_BEGIN_IGNORE_DEPRECATIONS
# define G_GNUC_END_IGNORE_DEPRECATIONS
static inline void
g_queue_free_full(GQueue *queue, GDestroyNotify free_func) {
GList *l = NULL;
for(l = queue->head; l != NULL; l = l->next) {
free_func(l->data);
}
g_queue_free(queue);
}
static inline gboolean
g_hash_table_contains(GHashTable *hash_table, gconstpointer key) {
return g_hash_table_lookup_extended(hash_table, key, NULL, NULL);
}
#endif /* !GLIB_CHECK_VERSION(2,32,0) */
#ifdef __clang__
#undef G_GNUC_BEGIN_IGNORE_DEPRECATIONS
#define G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
_Pragma ("clang diagnostic push") \
_Pragma ("clang diagnostic ignored \"-Wdeprecated-declarations\"")
#undef G_GNUC_END_IGNORE_DEPRECATIONS
#define G_GNUC_END_IGNORE_DEPRECATIONS \
_Pragma ("clang diagnostic pop")
#endif /* __clang__ */
/* Backport the static inline version of g_memdup2 if we don't have g_memdup2.
* see https://mail.gnome.org/archives/desktop-devel-list/2021-February/msg00000.html
* for more information.
*/
#if !GLIB_CHECK_VERSION(2, 67, 3)
static inline gpointer
g_memdup2(gconstpointer mem, gsize byte_size) {
gpointer new_mem = NULL;
if(mem && byte_size != 0) {
new_mem = g_malloc (byte_size);
memcpy (new_mem, mem, byte_size);
}
return new_mem;
}
#endif /* !GLIB_CHECK_VERSION(2, 67, 3) */
#endif /* PURPLE_GLIBCOMPAT_H */