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authorJon Trowbridge <trow@ximian.com>2001-06-07 05:09:20 +0800
committerJon Trowbridge <trow@src.gnome.org>2001-06-07 05:09:20 +0800
commitf15bb6a3ebcadfc4dbe8e9d2a2c82c98ac2da35a (patch)
tree24e03835f0e3216ded55b1b248efbb530367f75a
parentc77b7e30202573c1c4ab54086388202d93181b45 (diff)
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Check that the chain of deferences in gui->account->source->url is safe.
2001-06-06 Jon Trowbridge <trow@ximian.com> * mail-account-gui.c (source_type_changed): Check that the chain of deferences in gui->account->source->url is safe. This was causing a segfault when adding a new account if any of the existing accounts had their sources set to "None". (i.e. gui->account->source == NULL) * mail-accounts.c (load_accounts): Check that account->source != NULL before dereferencing it. (load_accounts): The selection is cleared when the account clist is rebuilt (say after a call to add), but no unselect event is emitted. Yes, the clist is evil. We work around this by explictly calling mail_unselect, our unselect signal handler. (Otherwise, the edit and delete buttons remain sensitive and accounts_row != 0, but the user can't see which row the dialog thinks is selected.) (load_news): Check the account->source != NULL before dereferencing it. (mail_unselect): If an insensitive button in a button box has the focus, and if you hit tab, there is a segfault deep inside of gtk. This is probably a gtk bug. We work around it by having the add button (which is always sensitive) grab the focus on an unselect. svn path=/trunk/; revision=10136
-rw-r--r--mail/ChangeLog24
-rw-r--r--mail/mail-account-gui.c9
-rw-r--r--mail/mail-accounts.c20
3 files changed, 48 insertions, 5 deletions
diff --git a/mail/ChangeLog b/mail/ChangeLog
index cc5a2008ce..5cf9910a36 100644
--- a/mail/ChangeLog
+++ b/mail/ChangeLog
@@ -1,3 +1,27 @@
+2001-06-06 Jon Trowbridge <trow@ximian.com>
+
+ * mail-account-gui.c (source_type_changed): Check that the chain
+ of deferences in gui->account->source->url is safe. This was
+ causing a segfault when adding a new account if any of the
+ existing accounts had their sources set to "None".
+ (i.e. gui->account->source == NULL)
+
+ * mail-accounts.c (load_accounts): Check that account->source !=
+ NULL before dereferencing it.
+ (load_accounts): The selection is cleared when the account clist
+ is rebuilt (say after a call to add), but no unselect event is
+ emitted. Yes, the clist is evil. We work around this by
+ explictly calling mail_unselect, our unselect signal handler.
+ (Otherwise, the edit and delete buttons remain sensitive and
+ accounts_row != 0, but the user can't see which row the dialog
+ thinks is selected.)
+ (load_news): Check the account->source != NULL before
+ dereferencing it.
+ (mail_unselect): If an insensitive button in a button box has the
+ focus, and if you hit tab, there is a segfault deep inside of gtk.
+ This is probably a gtk bug. We work around it by having the add
+ button (which is always sensitive) grab the focus on an unselect.
+
2001-06-05 Jason Leach <jleach@ximian.com>
(Fix bug #3211: Should undelete when flagging a delete message as
diff --git a/mail/mail-account-gui.c b/mail/mail-account-gui.c
index 74150adace..557bc49817 100644
--- a/mail/mail-account-gui.c
+++ b/mail/mail-account-gui.c
@@ -184,7 +184,7 @@ source_type_changed (GtkWidget *widget, gpointer user_data)
MailAccountGui *gui = user_data;
GtkWidget *label, *frame, *dwidget = NULL;
CamelProvider *provider;
-
+
provider = gtk_object_get_data (GTK_OBJECT (widget), "provider");
gui->source.provider = provider;
@@ -195,6 +195,7 @@ source_type_changed (GtkWidget *widget, gpointer user_data)
/* hostname */
label = glade_xml_get_widget (gui->xml, "source_host_label");
+
if (CAMEL_PROVIDER_ALLOWS (provider, CAMEL_URL_PART_HOST)) {
dwidget = GTK_WIDGET (gui->source.hostname);
gtk_widget_show (GTK_WIDGET (gui->source.hostname));
@@ -206,6 +207,7 @@ source_type_changed (GtkWidget *widget, gpointer user_data)
/* username */
label = glade_xml_get_widget (gui->xml, "source_user_label");
+
if (CAMEL_PROVIDER_ALLOWS (provider, CAMEL_URL_PART_USER)) {
if (!dwidget)
dwidget = GTK_WIDGET (gui->source.username);
@@ -218,6 +220,7 @@ source_type_changed (GtkWidget *widget, gpointer user_data)
/* path */
label = glade_xml_get_widget (gui->xml, "source_path_label");
+
if (CAMEL_PROVIDER_ALLOWS (provider, CAMEL_URL_PART_PATH)) {
if (!dwidget)
dwidget = GTK_WIDGET (gui->source.path);
@@ -271,8 +274,8 @@ source_type_changed (GtkWidget *widget, gpointer user_data)
if (dwidget)
gtk_widget_grab_focus (dwidget);
-
- mail_account_gui_build_extra_conf (gui, gui->account->source->url);
+
+ mail_account_gui_build_extra_conf (gui, gui && gui->account && gui->account->source ? gui->account->source->url : NULL);
}
diff --git a/mail/mail-accounts.c b/mail/mail-accounts.c
index 78317336cd..47dc311107 100644
--- a/mail/mail-accounts.c
+++ b/mail/mail-accounts.c
@@ -40,6 +40,8 @@
static void mail_accounts_dialog_class_init (MailAccountsDialogClass *class);
static void mail_accounts_dialog_init (MailAccountsDialog *dialog);
static void mail_accounts_dialog_finalise (GtkObject *obj);
+static void mail_unselect (GtkCList *clist, gint row, gint column, GdkEventButton *event, gpointer data);
+
static GnomeDialogClass *parent_class;
@@ -111,7 +113,7 @@ load_accounts (MailAccountsDialog *dialog)
account = node->data;
- if (account->source->url)
+ if (account->source && account->source->url)
url = camel_url_new (account->source->url, NULL);
else
url = NULL;
@@ -135,6 +137,13 @@ load_accounts (MailAccountsDialog *dialog)
}
gtk_clist_thaw (dialog->mail_accounts);
+
+ /*
+ * The selection gets cleared when we rebuild the clist, but no
+ * unselect event is emitted. So we simulate it here.
+ * I hate the clist.
+ */
+ mail_unselect (dialog->mail_accounts, 0, 0, NULL, dialog);
}
#ifdef ENABLE_NNTP
@@ -155,7 +164,7 @@ load_news (MailAccountsDialog *dialog)
account = node->data;
- if (account->source->url)
+ if (account->source && account->source->url)
url = camel_url_new (account->source->url, NULL);
else
url = NULL;
@@ -210,6 +219,13 @@ mail_unselect (GtkCList *clist, gint row, gint column, GdkEventButton *event, gp
gtk_widget_set_sensitive (GTK_WIDGET (dialog->mail_delete), FALSE);
gtk_widget_set_sensitive (GTK_WIDGET (dialog->mail_default), FALSE);
gtk_widget_set_sensitive (GTK_WIDGET (dialog->mail_able), FALSE);
+
+ /*
+ * If an insensitive button in a button box has the focus, and if you hit tab,
+ * there is a segfault. I think that this might be a gtk bug. Anyway, this
+ * is a workaround.
+ */
+ gtk_widget_grab_focus (GTK_WIDGET (dialog->mail_add));
}
static void