fixed a good amount of memory leaks

extensions/bookmarks/callbacks.c

@@ -138,8 +138,10 @@ update_system_bookmark_list_from_content (GthBrowser *browser,
 
 		line = g_strsplit (lines[i], " ", 2);
 		uri = line[0];
-		if (uri == NULL)
+		if (uri == NULL) {
+			g_strfreev (line);
 			continue;
+		}
 
 		file = g_file_new_for_uri (uri);
 		icon = _g_file_get_icon (file);
@@ -159,7 +161,7 @@ update_system_bookmark_list_from_content (GthBrowser *browser,
 						      -1);
 
 		g_free (name);
-		g_object_unref (icon);
+		_g_object_unref (icon);
 		g_object_unref (file);
 		g_strfreev (line);
 	}

extensions/cairo_io/cairo-io-png.c

@@ -245,6 +245,7 @@ _cairo_image_surface_create_from_png (GthFileData   *file_data,
 	if (cairo_surface_status (cairo_png_data->surface) == CAIRO_STATUS_SUCCESS)
 		gth_image_set_cairo_surface (image, cairo_png_data->surface);
 
+	g_free (row_pointers);
 	_cairo_png_data_destroy (cairo_png_data);
 
 	return image;

extensions/catalogs/gth-catalog.c

@@ -642,6 +642,8 @@ get_display_name (GFile       *file,
 		}
 	}
 
+	g_free (basename);
+
 	return g_string_free (display_name, FALSE);
 }
 
@@ -675,6 +677,8 @@ get_edit_name (GFile       *file,
 			g_string_append (display_name, name);
 	}
 
+	g_free (basename);
+
 	return g_string_free (display_name, FALSE);
 }
 
@@ -695,6 +699,8 @@ update_standard_attributes (GFile       *file,
 		sort_order_s = gth_datetime_strftime (date_time, "%Y%m%d");
 		sort_order = atoi (sort_order_s);
 		g_file_info_set_sort_order (info, sort_order);
+
+		g_free (sort_order_s);
 	}
 	else if (g_file_info_get_attribute_boolean (info, "gthumb::no-child"))
 		g_file_info_set_sort_order (info, 99999999);
@@ -822,6 +828,7 @@ gth_catalog_file_to_gio_file (GFile *file)
 			full_uri = g_strconcat (base_uri, part ? "/" : NULL, part, NULL);
 			gio_file = g_file_new_for_uri (full_uri);
 
+			g_free (full_uri);
 			g_free (base_uri);
 			g_object_unref (base);
 		}
@@ -1158,7 +1165,8 @@ gth_catalog_save (GthCatalog *catalog)
 	gio_file = gth_catalog_file_to_gio_file (file);
 
 	gio_parent = g_file_get_parent (gio_file);
-	g_file_make_directory_with_parents (gio_parent, NULL, NULL);
+	if (gio_parent != NULL)
+		g_file_make_directory_with_parents (gio_parent, NULL, NULL);
 	data = gth_catalog_to_data (catalog, &size);
 	if (! g_write_file (gio_file,
 			    FALSE,
@@ -1198,6 +1206,6 @@ gth_catalog_save (GthCatalog *catalog)
 	}
 
 	g_free (data);
-	g_object_unref (gio_parent);
+	_g_object_unref (gio_parent);
 	g_object_unref (gio_file);
 }

extensions/catalogs/gth-file-source-catalogs.c

@@ -71,14 +71,16 @@ update_file_info (GthFileSource *file_source,
 		  GFile         *catalog_file,
 		  GFileInfo     *info)
 {
-	char *uri;
+	char  *uri;
+	GIcon *icon = NULL;
 
 	uri = g_file_get_uri (catalog_file);
 
 	if (g_str_has_suffix (uri, ".gqv") || g_str_has_suffix (uri, ".catalog")) {
 		g_file_info_set_file_type (info, G_FILE_TYPE_DIRECTORY);
 		g_file_info_set_content_type (info, "gthumb/catalog");
-		g_file_info_set_icon (info, g_themed_icon_new ("file-catalog"));
+		icon = g_themed_icon_new ("file-catalog");
+		g_file_info_set_icon (info, icon);
 		g_file_info_set_sort_order (info, 1);
 		g_file_info_set_attribute_boolean (info, "gthumb::no-child", TRUE);
 		gth_catalog_update_standard_attributes (catalog_file, info);
@@ -86,7 +88,8 @@ update_file_info (GthFileSource *file_source,
 	else if (g_str_has_suffix (uri, ".search")) {
 		g_file_info_set_file_type (info, G_FILE_TYPE_DIRECTORY);
 		g_file_info_set_content_type (info, "gthumb/search");
-		g_file_info_set_icon (info, g_themed_icon_new ("file-search"));
+		icon = g_themed_icon_new ("file-search");
+		g_file_info_set_icon (info, icon);
 		g_file_info_set_sort_order (info, 1);
 		g_file_info_set_attribute_boolean (info, "gthumb::no-child", TRUE);
 		gth_catalog_update_standard_attributes (catalog_file, info);
@@ -94,12 +97,14 @@ update_file_info (GthFileSource *file_source,
 	else {
 		g_file_info_set_file_type (info, G_FILE_TYPE_DIRECTORY);
 		g_file_info_set_content_type (info, "gthumb/library");
-		g_file_info_set_icon (info, g_themed_icon_new ("file-library"));
+		icon = g_themed_icon_new ("file-library");
+		g_file_info_set_icon (info, icon);
 		g_file_info_set_sort_order (info, 0);
 		g_file_info_set_attribute_boolean (info, "gthumb::no-child", FALSE);
 		gth_catalog_update_standard_attributes (catalog_file, info);
 	}
 
+	_g_object_unref (icon);
 	g_free (uri);
 }
 

extensions/comments/gth-comment.c

@@ -317,6 +317,7 @@ gth_comment_new_for_file (GFile         *file,
 		comment = NULL;
 	}
 
+	g_object_unref (doc);
 	g_free (buffer);
 	g_free (zipped_buffer);
 

extensions/exiv2_tools/exiv2-utils.cpp

@@ -392,7 +392,6 @@ set_attribute_from_metadata (GFileInfo  *info,
 			     const char *attribute,
 			     GObject    *metadata)
 {
-	char *key;
 	char *description;
 	char *formatted_value;
 	char *raw_value;
@@ -402,7 +401,6 @@ set_attribute_from_metadata (GFileInfo  *info,
 		return;
 
 	g_object_get (metadata,
-		      "id", &key,
 		      "description", &description,
 		      "formatted", &formatted_value,
 		      "raw", &raw_value,
@@ -416,6 +414,11 @@ set_attribute_from_metadata (GFileInfo  *info,
 		       raw_value,
 		       NULL,
 		       type_name);
+
+	g_free (description);
+	g_free (formatted_value);
+	g_free (raw_value);
+	g_free (type_name);
 }
 
 

extensions/file_manager/callbacks.c

@@ -1105,7 +1105,7 @@ _gth_browser_update_open_menu (GthBrowser *browser,
 	gtk_widget_show (openwith_item);
 
 	g_hash_table_destroy (used_apps);
-	g_list_free (appinfo_list);
+	_g_object_list_unref (appinfo_list);
 	_g_object_list_unref (file_list);
 	_gtk_tree_path_list_free (items);
 }

extensions/selections/gth-selections-manager.c

@@ -228,12 +228,20 @@ gth_selections_manager_update_file_info (GFile     *file,
 	/* icon */
 
 	if (n_selection > 0) {
+		GIcon *icon;
+
 		name = g_strdup_printf ("selection%d", n_selection);
-		g_file_info_set_icon (info, g_themed_icon_new (name));
+		icon = g_themed_icon_new (name);
+		g_file_info_set_icon (info, icon);
+
+		g_object_unref (icon);
 		g_free (name);
 	}
-	else
-		g_file_info_set_icon (info, g_themed_icon_new ("selection"));
+	else {
+		GIcon *icon = g_themed_icon_new ("selection");
+		g_file_info_set_icon (info, icon);
+		g_object_unref (icon);
+	}
 
 	/* display name */
 

gthumb/gio-utils.c

@@ -201,9 +201,10 @@ for_each_child_data_free (ForEachChildData *fec)
 		return;
 
 	g_object_unref (fec->base_directory);
-	if (fec->already_visited)
+	if (fec->already_visited != NULL)
 		g_hash_table_destroy (fec->already_visited);
 	clear_child_data (&(fec->current));
+	g_free (fec->attributes);
 	if (fec->to_visit != NULL) {
 		g_list_foreach (fec->to_visit, (GFunc) child_data_free, NULL);
 		g_list_free (fec->to_visit);

gthumb/glib-utils.c

@@ -1923,8 +1923,10 @@ _g_file_get_display_name (GFile *file)
 				       G_FILE_QUERY_INFO_NONE,
 				       NULL,
 				       NULL);
-	if (file_info != NULL)
+	if (file_info != NULL) {
 		name = g_strdup (g_file_info_get_attribute_string (file_info, G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME));
+		g_object_unref (file_info);
+	}
 	else
 		name = g_file_get_parse_name (file);
 
@@ -2073,8 +2075,10 @@ _g_file_get_icon (GFile *file)
 				       G_FILE_QUERY_INFO_NONE,
 				       NULL,
 				       NULL);
-	if (file_info != NULL)
-		icon = (GIcon*) g_file_info_get_attribute_object (file_info, G_FILE_ATTRIBUTE_STANDARD_ICON);
+	if (file_info != NULL) {
+		icon = (GIcon*) g_object_ref (g_file_info_get_attribute_object (file_info, G_FILE_ATTRIBUTE_STANDARD_ICON));
+		g_object_unref (file_info);
+	}
 
 	if (icon == NULL)
 		icon = g_themed_icon_new ("file");

gthumb/gnome-desktop-thumbnail.c

@@ -1573,7 +1573,7 @@ read_png_options (const char *thumbnail_filename)
 
 	f = fopen (thumbnail_filename, "r");
 	if (f == NULL) {
-		png_destroy_read_struct (&png_ptr, NULL, NULL);
+		png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
 		return options;
 	}
 

gthumb/gth-browser.c

@@ -3330,6 +3330,7 @@ pref_general_filter_changed (GSettings  *settings,
 	filter = _gth_browser_get_file_filter (browser);
 	gth_file_list_set_filter (GTH_FILE_LIST (browser->priv->file_list), filter);
 	gth_file_list_set_filter (GTH_FILE_LIST (browser->priv->thumbnail_list), filter);
+
 	g_object_unref (filter);
 }
 
@@ -4033,6 +4034,7 @@ gth_browser_init (GthBrowser *browser)
 	GtkWidget      *menubar;
 	GtkOrientation  viewer_thumbnails_orientation;
 	char           *general_filter;
+	char           *sort_type;
 	char           *caption;
 	int             i;
 
@@ -4410,8 +4412,9 @@ gth_browser_init (GthBrowser *browser)
 	/* the file list */
 
 	browser->priv->file_list = gth_file_list_new (gth_grid_view_new (), GTH_FILE_LIST_TYPE_NORMAL, TRUE);
+	sort_type = g_settings_get_string (browser->priv->browser_settings, PREF_BROWSER_SORT_TYPE);
 	gth_browser_set_sort_order (browser,
-				    gth_main_get_sort_type (g_settings_get_string (browser->priv->browser_settings, PREF_BROWSER_SORT_TYPE)),
+				    gth_main_get_sort_type (sort_type),
 				    g_settings_get_boolean (browser->priv->browser_settings, PREF_BROWSER_SORT_INVERSE));
 	gth_browser_enable_thumbnails (browser, g_settings_get_boolean (browser->priv->browser_settings, PREF_BROWSER_SHOW_THUMBNAILS));
 	gth_file_list_set_thumb_size (GTH_FILE_LIST (browser->priv->file_list),
@@ -4420,6 +4423,7 @@ gth_browser_init (GthBrowser *browser)
 	gth_file_list_set_caption (GTH_FILE_LIST (browser->priv->file_list), caption);
 
 	g_free (caption);
+	g_free (sort_type);
 
 	gtk_widget_show (browser->priv->file_list);
 	gtk_box_pack_start (GTK_BOX (vbox), browser->priv->file_list, TRUE, TRUE, 0);

gthumb/gth-extensions.c

@@ -452,8 +452,11 @@ gth_extension_description_load_from_file (GthExtensionDescription *desc,
 
 	key_file = g_key_file_new ();
 	file_path = g_file_get_path (file);
-	if (! g_key_file_load_from_file (key_file, file_path, G_KEY_FILE_NONE, NULL))
+	if (! g_key_file_load_from_file (key_file, file_path, G_KEY_FILE_NONE, NULL)) {
+		g_free (file_path);
+		g_key_file_free (key_file);
 		return FALSE;
+	}
 
 	basename = g_file_get_basename (file);
 	desc->id = _g_uri_remove_extension (basename);
@@ -849,6 +852,7 @@ gth_extension_manager_order_extensions (GthExtensionManager  *manager,
 				ordered_by_dependency = _g_list_prepend_link (ordered_by_dependency, link);
 			}
 		}
+		g_list_free (dependencies);
 
 		/* prepend the extension to the ordered list */
 		extension_list = g_list_remove_link (extension_list, scan);

gthumb/gth-file-data.c

@@ -548,6 +548,8 @@ gth_file_data_list_get_common_info (GList      *file_data_list,
 
 		if (first_value == NULL)
 			g_file_info_remove_attribute (info, attribute);
+
+		g_free (first_value);
 	}
 
 	g_strfreev (attributes_v);

gthumb/gth-file-list.c

@@ -1436,6 +1436,7 @@ thumbnail_job_ready_cb (GObject      *source_object,
 	if ((! success && g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
 	    || file_list->priv->cancelling)
 	{
+		_g_object_unref (pixbuf);
 		thumbnail_job_free (job);
 		return;
 	}

gthumb/gth-file-store.c

@@ -144,11 +144,11 @@ _gth_file_row_copy (GthFileRow *row)
 }
 
 
-G_GNUC_UNUSED
-static void
+static GthFileRow *
 _gth_file_row_ref (GthFileRow *row)
 {
 	row->ref_count++;
+	return row;
 }
 
 
@@ -169,6 +169,7 @@ _gth_file_row_unref (GthFileRow *row)
 static void
 _gth_file_store_clear_queue (GthFileStore *file_store)
 {
+	g_list_foreach (file_store->priv->queue, (GFunc) _gth_file_row_unref, NULL);
 	g_list_free (file_store->priv->queue);
 	file_store->priv->queue = NULL;
 }
@@ -803,7 +804,7 @@ g_print ("UPDATE VISIBILITY\n");
 	for (i = 0; i < position; i++)
 		all_rows[j++] = _gth_file_row_copy (file_store->priv->all_rows[i]);
 	for (scan = add_queue; scan; scan = scan->next)
-		all_rows[j++] = (GthFileRow *) scan->data;
+		all_rows[j++] = _gth_file_row_ref ((GthFileRow *) scan->data);
 	for (i = position; i < file_store->priv->tot_rows; i++)
 		all_rows[j++] = _gth_file_row_copy (file_store->priv->all_rows[i]);
 
@@ -1565,7 +1566,7 @@ gth_file_store_queue_remove (GthFileStore *file_store,
 
   	row = (GthFileRow*) iter->user_data;
 
-	file_store->priv->queue = g_list_prepend (file_store->priv->queue, file_store->priv->all_rows[row->abs_pos]);
+	file_store->priv->queue = g_list_prepend (file_store->priv->queue, _gth_file_row_ref (file_store->priv->all_rows[row->abs_pos]));
 }
 
 

gthumb/gth-filter-file.c

@@ -53,6 +53,8 @@ gth_filter_file_new (void)
 void
 gth_filter_file_free (GthFilterFile *filters)
 {
+	if (filters == NULL)
+		return;
 	_g_object_list_unref (filters->items);
 	g_free (filters);
 }

gthumb/gth-filter.c

@@ -137,6 +137,8 @@ gth_filter_real_load_from_element (DomDomizable *base,
 			test = gth_test_chain_new (GTH_MATCH_TYPE_NONE, NULL);
 			dom_domizable_load_from_element (DOM_DOMIZABLE (test), node);
 			gth_filter_set_test (self, GTH_TEST_CHAIN (test));
+
+			g_object_unref (test);
 		}
 		else if (g_strcmp0 (node->tag_name, "limit") == 0) {
 			gth_filter_set_limit (self,

gthumb/gth-image-loader.c

@@ -204,17 +204,18 @@ load_pixbuf_thread (GSimpleAsyncResult *result,
 			error = g_error_new_literal (G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, _("No suitable loader available for this file type"));
 	}
 
-	load_result = g_new0 (LoadResult, 1);
-	load_result->image = image;
-	load_result->original_width = original_width;
-	load_result->original_height = original_height;
-
 	if (error != NULL) {
+		_g_object_unref (image);
 		g_simple_async_result_set_from_error (result, error);
 		g_error_free (error);
+		return;
 	}
-	else
-		g_simple_async_result_set_op_res_gpointer (result, load_result, (GDestroyNotify) load_result_unref);
+
+	load_result = g_new0 (LoadResult, 1);
+	load_result->image = image;
+	load_result->original_width = original_width;
+	load_result->original_height = original_height;
+	g_simple_async_result_set_op_res_gpointer (result, load_result, (GDestroyNotify) load_result_unref);
 }
 
 

gthumb/gth-image-viewer.c

@@ -169,6 +169,7 @@ gth_image_viewer_finalize (GObject *object)
 	}
 
 	g_list_foreach (self->priv->painters, (GFunc) painter_data_free, NULL);
+	_g_object_unref (self->priv->tool);
 
 	_g_clear_object (&self->priv->image);
 	_g_clear_object (&self->priv->animation);