[epiphany] Add Duplicate Tab window command

[Michael Catanzaro <mcatanzaro src gnome org>]

commit b46bb84c6ce3125947a6d54088633c23f17e81fc
Author: Gabriel Ivascu <ivascu gabriel59 gmail com>
Date:   Mon Mar 7 13:49:52 2016 +0200

    Add Duplicate Tab window command
    
    https://bugzilla.gnome.org/show_bug.cgi?id=763221

 src/ephy-window.c             |    2 ++
 src/resources/epiphany-ui.xml |    1 +
 src/window-commands.c         |   24 ++++++++++++++++++++++++
 src/window-commands.h         |    2 ++
 4 files changed, 29 insertions(+), 0 deletions(-)
---
diff --git a/src/ephy-window.c b/src/ephy-window.c
index 4c42a5d..b8cb631 100644
--- a/src/ephy-window.c
+++ b/src/ephy-window.c
@@ -177,6 +177,8 @@ static const GtkActionEntry ephy_menu_entries [] = {
     G_CALLBACK (window_cmd_tabs_move_left) },
   { "TabsMoveRight", NULL, N_("Move Tab _Right"), "<shift><control>Page_Down", NULL,
     G_CALLBACK (window_cmd_tabs_move_right) },
+  { "TabsDuplicate", NULL, N_("Du_plicate"), "<shift><control>D", NULL,
+    G_CALLBACK (window_cmd_tabs_duplicate) },
   { "TabsDetach", NULL, N_("_Detach Tab"), NULL, NULL,
     G_CALLBACK (window_cmd_tabs_detach) },
 
diff --git a/src/resources/epiphany-ui.xml b/src/resources/epiphany-ui.xml
index 26e47ac..efe51a4 100644
--- a/src/resources/epiphany-ui.xml
+++ b/src/resources/epiphany-ui.xml
@@ -4,6 +4,7 @@
                        <menuitem name="TabMoveLeftENP" action="TabsMoveLeft"/>
                        <menuitem name="TabMoveRightENP" action="TabsMoveRight"/>
                </placeholder>
+               <menuitem name="TabDuplicateENP" action="TabsDuplicate"/>
                <menuitem name="TabCloseENP" action="FileCloseTab"/>
                <!-- <menuitem name="TabDetachENP" action="TabsDetach"/> -->
        </popup>
diff --git a/src/window-commands.c b/src/window-commands.c
index c83fdd5..be9744c 100644
--- a/src/window-commands.c
+++ b/src/window-commands.c
@@ -1534,6 +1534,30 @@ void window_cmd_tabs_move_right (GtkAction  *action,
 }
 
 void
+window_cmd_tabs_duplicate (GtkAction  *action,
+                           EphyWindow *window)
+{
+  EphyEmbed *embed, *new_embed;
+  EphyWebView *view, *new_view;
+  WebKitWebViewSessionState *session_state;
+
+  embed = ephy_embed_container_get_active_child (EPHY_EMBED_CONTAINER (window));
+  view = ephy_embed_get_web_view (embed);
+  session_state = webkit_web_view_get_session_state (WEBKIT_WEB_VIEW (view));
+
+  new_embed = ephy_shell_new_tab (ephy_shell_get_default (),
+                                  window,
+                                  embed,
+                                  EPHY_NEW_TAB_APPEND_AFTER | EPHY_NEW_TAB_JUMP);
+
+  new_view = ephy_embed_get_web_view (new_embed);
+
+  webkit_web_view_restore_session_state (WEBKIT_WEB_VIEW (new_view), session_state);
+  webkit_web_view_session_state_unref (session_state);
+  ephy_web_view_load_url (new_view, webkit_web_view_get_uri (WEBKIT_WEB_VIEW (view)));
+}
+
+void
 window_cmd_tabs_detach (GtkAction  *action,
                         EphyWindow *window)
 {
diff --git a/src/window-commands.h b/src/window-commands.h
index 29b6025..1db5a47 100644
--- a/src/window-commands.h
+++ b/src/window-commands.h
@@ -90,6 +90,8 @@ void window_cmd_tabs_move_left            (GtkAction  *action,
                                            EphyWindow *window);
 void window_cmd_tabs_move_right           (GtkAction  *action,
                                            EphyWindow *window);
+void window_cmd_tabs_duplicate            (GtkAction  *action,
+                                           EphyWindow *window);
 void window_cmd_tabs_detach               (GtkAction  *action,
                                            EphyWindow *window);
 void window_cmd_load_location             (GtkAction  *action,