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Issue #3275 - Crash when opening an image after closing existing image

Browse source 
In gimp_open_dialog_set_image(), use a weak pointer for storing the
current image, to avoid a segfault in file_open_dialog_response()
if the active image at the time of the open action has been closed
before confirming the dialog.
This commit is contained in:
Ell 2019-04-20 14:30:43 -04:00
parent eda8b717d5
commit b01113741e
2 changed files with 43 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

7
app/dialogs/file-open-dialog.c
View file

@ -139,10 +139,13 @@ file_open_dialog_response (GtkWidget *dialog,
{
if (! file_dialog->image)
{
file_dialog->image = file_open_dialog_open_image (dialog,
gimp_open_dialog_set_image (
open_dialog,
file_open_dialog_open_image (dialog,
gimp,
file,
file_dialog->file_proc);
file_dialog->file_proc),
TRUE);
if (file_dialog->image)
{

38
app/widgets/gimpopendialog.c
View file

@ -37,15 +37,25 @@
#include "gimp-intl.h"
/* local function prototypes */
static void gimp_open_dialog_dispose (GObject *object);
G_DEFINE_TYPE (GimpOpenDialog, gimp_open_dialog,
GIMP_TYPE_FILE_DIALOG)
#define parent_class gimp_open_dialog_parent_class
/* private functions */
static void
gimp_open_dialog_class_init (GimpOpenDialogClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->dispose = gimp_open_dialog_dispose;
}
static void
@ -53,6 +63,14 @@ gimp_open_dialog_init (GimpOpenDialog *dialog)
{
}
static void
gimp_open_dialog_dispose (GObject *object)
{
gimp_open_dialog_set_image (GIMP_OPEN_DIALOG (object), NULL, FALSE);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
/* public functions */
@ -83,9 +101,25 @@ gimp_open_dialog_set_image (GimpOpenDialog *dialog,
GimpImage *image,
gboolean open_as_layers)
{
GimpFileDialog *file_dialog;
g_return_if_fail (GIMP_IS_OPEN_DIALOG (dialog));
g_return_if_fail (image == NULL || GIMP_IS_IMAGE (image));
GIMP_FILE_DIALOG (dialog)->image = image;
dialog->open_as_layers = open_as_layers;
file_dialog = GIMP_FILE_DIALOG (dialog);
if (file_dialog->image)
{
g_object_remove_weak_pointer (G_OBJECT (file_dialog->image),
(gpointer *) &file_dialog->image);
}
file_dialog->image = image;
dialog->open_as_layers = open_as_layers;
if (file_dialog->image)
{
g_object_add_weak_pointer (G_OBJECT (file_dialog->image),
(gpointer *) &file_dialog->image);
}
}