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GtkRecentManager: Survive without a filename

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We were asserting priv->filename != NULL in various places,
which leads to apps refusing to work when HOME is set to a
nonexisting or nonwritable value. Since it isn't hard, just
make GtkRecentManager survive without a filename. We won't
save or read any recently used files in this state, but
thats ok.
https://bugzilla.gnome.org/show_bug.cgi?id=739038
This commit is contained in:
Matthias Clasen 2014-12-22 08:21:50 -05:00
parent 84b0b45465
commit ea36b7bfb0
1 changed files with 71 additions and 70 deletions
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141
gtk/gtkrecentmanager.c
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@ -455,12 +455,10 @@ gtk_recent_manager_real_changed (GtkRecentManager *manager)
if (priv->is_dirty)
{
GError *write_error;
/* we are marked as dirty, so we dump the content of our
* recently used items list
*/
g_assert (priv->filename != NULL);
if (!priv->recent_items)
{
/* if no container object has been defined, we create a new
@ -496,23 +494,24 @@ gtk_recent_manager_real_changed (GtkRecentManager *manager)
gtk_recent_manager_clamp_to_age (manager, age);
}
write_error = NULL;
g_bookmark_file_to_file (priv->recent_items, priv->filename, &write_error);
if (write_error)
if (priv->filename != NULL)
{
filename_warning ("Attempting to store changes into `%s', "
"but failed: %s",
priv->filename,
write_error->message);
g_error_free (write_error);
}
write_error = NULL;
g_bookmark_file_to_file (priv->recent_items, priv->filename, &write_error);
if (write_error)
{
filename_warning ("Attempting to store changes into `%s', but failed: %s",
priv->filename,
write_error->message);
g_error_free (write_error);
}
if (g_chmod (priv->filename, 0600) < 0)
{
filename_warning ("Attempting to set the permissions of `%s', "
"but failed: %s",
priv->filename,
g_strerror (errno));
if (g_chmod (priv->filename, 0600) < 0)
{
filename_warning ("Attempting to set the permissions of `%s', but failed: %s",
priv->filename,
g_strerror (errno));
}
}
/* mark us as clean */
@ -621,28 +620,29 @@ gtk_recent_manager_set_filename (GtkRecentManager *manager,
priv->filename = g_strdup (filename);
}
g_assert (priv->filename != NULL);
file = g_file_new_for_path (priv->filename);
error = NULL;
priv->monitor = g_file_monitor_file (file, G_FILE_MONITOR_NONE, NULL, &error);
if (error)
if (priv->filename != NULL)
{
filename_warning ("Unable to monitor `%s': %s\n"
"The GtkRecentManager will not update its contents "
"if the file is changed from other instances",
priv->filename,
error->message);
g_error_free (error);
file = g_file_new_for_path (priv->filename);
error = NULL;
priv->monitor = g_file_monitor_file (file, G_FILE_MONITOR_NONE, NULL, &error);
if (error)
{
filename_warning ("Unable to monitor `%s': %s\n"
"The GtkRecentManager will not update its contents "
"if the file is changed from other instances",
priv->filename,
error->message);
g_error_free (error);
}
else
g_signal_connect (priv->monitor, "changed",
G_CALLBACK (gtk_recent_manager_monitor_changed),
manager);
g_object_unref (file);
}
else
g_signal_connect (priv->monitor, "changed",
G_CALLBACK (gtk_recent_manager_monitor_changed),
manager);
g_object_unref (file);
priv->is_dirty = FALSE;
build_recent_items_list (manager);
}
@ -658,46 +658,47 @@ build_recent_items_list (GtkRecentManager *manager)
GError *read_error;
gint size;
g_assert (priv->filename != NULL);
if (!priv->recent_items)
{
priv->recent_items = g_bookmark_file_new ();
priv->size = 0;
}
/* the file exists, and it's valid (we hope); if not, destroy the container
* object and hope for a better result when the next "changed" signal is
* fired. */
read_error = NULL;
g_bookmark_file_load_from_file (priv->recent_items, priv->filename, &read_error);
if (read_error)
if (priv->filename != NULL)
{
/* if the file does not exist we just wait for the first write
* operation on this recent manager instance, to avoid creating
* empty files and leading to spurious file system events (Sabayon
* will not be happy about those)
*/
if (read_error->domain == G_FILE_ERROR &&
read_error->code != G_FILE_ERROR_NOENT)
filename_warning ("Attempting to read the recently used resources "
"file at `%s', but the parser failed: %s.",
priv->filename,
read_error->message);
g_bookmark_file_free (priv->recent_items);
priv->recent_items = NULL;
g_error_free (read_error);
}
else
{
size = g_bookmark_file_get_size (priv->recent_items);
if (priv->size != size)
/* the file exists, and it's valid (we hope); if not, destroy the container
* object and hope for a better result when the next "changed" signal is
* fired. */
read_error = NULL;
g_bookmark_file_load_from_file (priv->recent_items, priv->filename, &read_error);
if (read_error)
{
priv->size = size;
/* if the file does not exist we just wait for the first write
* operation on this recent manager instance, to avoid creating
* empty files and leading to spurious file system events (Sabayon
* will not be happy about those)
*/
if (read_error->domain == G_FILE_ERROR &&
read_error->code != G_FILE_ERROR_NOENT)
filename_warning ("Attempting to read the recently used resources "
"file at `%s', but the parser failed: %s.",
priv->filename,
read_error->message);
g_object_notify (G_OBJECT (manager), "size");
g_bookmark_file_free (priv->recent_items);
priv->recent_items = NULL;
g_error_free (read_error);
}
else
{
size = g_bookmark_file_get_size (priv->recent_items);
if (priv->size != size)
{
priv->size = size;
g_object_notify (G_OBJECT (manager), "size");
}
}
}
@ -712,7 +713,7 @@ build_recent_items_list (GtkRecentManager *manager)
/**
* gtk_recent_manager_new:
*
*
* Creates a new recent manager object. Recent manager objects are used to
* handle the list of recently used resources. A #GtkRecentManager object
* monitors the recently used resources list, and emits the “changed” signal
@ -825,7 +826,7 @@ gtk_recent_manager_add_item_query_info (GObject *source_object,
* This function automatically retrieves some of the needed
* metadata and setting other metadata to common default values; it
* then feeds the data to gtk_recent_manager_add_full().
*
*
* See gtk_recent_manager_add_full() if you want to explicitly
* define the metadata for the resource pointed by @uri.
*