[epiphany] Add spelling suggestion to the context menu in WebKit2

[Carlos Garcia Campos <carlosgc src gnome org>]

commit 26435511e0a9579257ff97abc9af2e08a14c8103
Author: Carlos Garcia Campos <cgarcia igalia com>
Date:   Sat Mar 16 11:50:59 2013 +0100

    Add spelling suggestion to the context menu in WebKit2
    
    https://bugzilla.gnome.org/show_bug.cgi?id=695904

 src/ephy-window.c    |   60 ++++++++++++++++++++++++++++++++++++++++++++++---
 src/popup-commands.c |    4 +--
 2 files changed, 57 insertions(+), 7 deletions(-)
---
diff --git a/src/ephy-window.c b/src/ephy-window.c
index 26b9027..ef3a748 100644
--- a/src/ephy-window.c
+++ b/src/ephy-window.c
@@ -1844,6 +1844,35 @@ find_item_in_context_menu (WebKitContextMenu *context_menu,
        return NULL;
 }
 
+static GList *
+find_spelling_guess_context_menu_items (WebKitContextMenu *context_menu)
+{
+       GList *items, *iter;
+       guint i;
+       GList *retval = NULL;
+
+       items = webkit_context_menu_get_items (context_menu);
+       for (iter = items, i = 0; iter && i < MAX_SPELL_CHECK_GUESSES; iter = g_list_next (iter), i++)
+       {
+               WebKitContextMenuItem *item = (WebKitContextMenuItem *)iter->data;
+
+               if (webkit_context_menu_item_get_stock_action (item) == 
WEBKIT_CONTEXT_MENU_ACTION_SPELLING_GUESS)
+               {
+                       retval = g_list_prepend (retval, g_object_ref (item));
+               }
+               else
+               {
+                       /* Spelling guesses are always at the beginning of the context menu, so
+                        * we can break the loop as soon as we find the first item that is not
+                        * spelling guess.
+                        */
+                       break;
+               }
+       }
+
+       return g_list_reverse (retval);
+}
+
 static gboolean
 populate_context_menu (WebKitWebView *web_view,
                       WebKitContextMenu *context_menu,
@@ -1852,14 +1881,18 @@ populate_context_menu (WebKitWebView *web_view,
                       EphyWindow *window)
 {
        EphyWindowPrivate *priv = window->priv;
-       WebKitContextMenuItem *input_methods_item;
-       WebKitContextMenuItem *unicode_item;
+       WebKitContextMenuItem *input_methods_item = NULL;
+       WebKitContextMenuItem *unicode_item = NULL;
+       GList *spelling_guess_items = NULL;
        EphyEmbedEvent *embed_event;
        gboolean is_document = FALSE;
        gboolean app_mode;
 
-       input_methods_item = find_item_in_context_menu (context_menu, 
WEBKIT_CONTEXT_MENU_ACTION_INPUT_METHODS);
-       unicode_item = find_item_in_context_menu (context_menu, WEBKIT_CONTEXT_MENU_ACTION_UNICODE);
+       if (webkit_hit_test_result_context_is_editable (hit_test_result)) {
+               input_methods_item = find_item_in_context_menu (context_menu, 
WEBKIT_CONTEXT_MENU_ACTION_INPUT_METHODS);
+               unicode_item = find_item_in_context_menu (context_menu, WEBKIT_CONTEXT_MENU_ACTION_UNICODE);
+               spelling_guess_items = find_spelling_guess_context_menu_items (context_menu);
+       }
 
        webkit_context_menu_remove_all (context_menu);
 
@@ -1920,6 +1953,25 @@ populate_context_menu (WebKitWebView *web_view,
        }
        else if (webkit_hit_test_result_context_is_editable (hit_test_result))
        {
+               GList *l;
+               gboolean has_guesses = FALSE;
+
+               for (l = spelling_guess_items; l; l = g_list_next (l))
+               {
+                       WebKitContextMenuItem *item = WEBKIT_CONTEXT_MENU_ITEM (l->data);
+
+                       webkit_context_menu_append (context_menu, item);
+                       g_object_unref (item);
+                       has_guesses = TRUE;
+               }
+               g_list_free (spelling_guess_items);
+
+               if (has_guesses)
+               {
+                       webkit_context_menu_append (context_menu,
+                                                   webkit_context_menu_item_new_separator ());
+               }
+
                update_edit_actions_sensitivity (window, FALSE);
 
                add_action_to_context_menu (context_menu,
diff --git a/src/popup-commands.c b/src/popup-commands.c
index 1a1d973..2896fb2 100644
--- a/src/popup-commands.c
+++ b/src/popup-commands.c
@@ -491,9 +491,7 @@ void
 popup_replace_spelling (GtkAction *action,
                        EphyWindow *window)
 {
-#ifdef HAVE_WEBKIT2
-       /* TODO: Context Menu, Spellchecker */
-#else
+#ifndef HAVE_WEBKIT2
        EphyEmbed *embed;
        WebKitWebView *view;
        WebKitWebFrame *frame;