[evolution] ExternalEditor - Fix leaks of WebKit objects

[Tomas Popela <tpopela src gnome org>]

commit a59ef2ce97fbb536ed67f2b996b8876edcaa8477
Author: Tomas Popela <tpopela redhat com>
Date:   Wed May 13 13:25:42 2015 +0200

    ExternalEditor - Fix leaks of WebKit objects

 plugins/external-editor/external-editor.c |   30 ++++++++++++++++++----------
 1 files changed, 19 insertions(+), 11 deletions(-)
---
diff --git a/plugins/external-editor/external-editor.c b/plugins/external-editor/external-editor.c
index d41ae29..31ad139 100644
--- a/plugins/external-editor/external-editor.c
+++ b/plugins/external-editor/external-editor.c
@@ -258,33 +258,36 @@ static gint
 get_caret_position (EHTMLEditorView *view)
 {
        WebKitDOMDocument *document;
-       WebKitDOMDOMWindow *window;
-       WebKitDOMDOMSelection *selection;
+       WebKitDOMDOMWindow *dom_window;
+       WebKitDOMDOMSelection *dom_selection;
        WebKitDOMRange *range;
-       gint range_count;
+       gint range_count, ret_val;
        WebKitDOMNodeList *nodes;
        gulong ii, length;
 
        document = webkit_web_view_get_dom_document (WEBKIT_WEB_VIEW (view));
-       window = webkit_dom_document_get_default_view (document);
-       selection = webkit_dom_dom_window_get_selection (window);
+       dom_window = webkit_dom_document_get_default_view (document);
+       dom_selection = webkit_dom_dom_window_get_selection (dom_window);
+       g_object_unref (dom_window);
 
-       if (webkit_dom_dom_selection_get_range_count (selection) < 1)
+       if (webkit_dom_dom_selection_get_range_count (dom_selection) < 1) {
+               g_object_unref (dom_selection);
                return 0;
+       }
 
-       range = webkit_dom_dom_selection_get_range_at (selection, 0, NULL);
+       range = webkit_dom_dom_selection_get_range_at (dom_selection, 0, NULL);
        range_count = 0;
        nodes = webkit_dom_node_get_child_nodes (
                webkit_dom_node_get_parent_node (
                        webkit_dom_dom_selection_get_anchor_node (
-                               selection)));
+                               dom_selection)));
        length = webkit_dom_node_list_get_length (nodes);
        for (ii = 0; ii < length; ii++) {
                WebKitDOMNode *node;
 
                node = webkit_dom_node_list_item (nodes, ii);
                if (webkit_dom_node_is_same_node (
-                       node, webkit_dom_dom_selection_get_anchor_node (selection))) {
+                       node, webkit_dom_dom_selection_get_anchor_node (dom_selection))) {
 
                        g_object_unref (node);
                        break;
@@ -295,9 +298,14 @@ get_caret_position (EHTMLEditorView *view)
                }
                g_object_unref (node);
        }
-
        g_object_unref (nodes);
-       return webkit_dom_range_get_start_offset (range, NULL) + range_count;
+
+       ret_val = webkit_dom_range_get_start_offset (range, NULL) + range_count;
+
+       g_object_unref (range);
+       g_object_unref (dom_selection);
+
+       return ret_val;
 }
 
 static gboolean external_editor_running = FALSE;