[epiphany/gnome-3-34] Hide view page source context menu items when required

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 7e4cf2d961f8a01fc1fed1df16df89895bd659de
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Sat Jan 11 20:53:33 2020 +0000

    Hide view page source context menu items when required
    
    Doesn't make sense to allow view page source when we are already on a
    view source page.
    
    Fixes #1046
    
    
    (cherry picked from commit 8bf31b06dc95d4d44e116bf74c0085b4887d0411)

 src/ephy-window.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/src/ephy-window.c b/src/ephy-window.c
index c3a4e6c1b..f3557a954 100644
--- a/src/ephy-window.c
+++ b/src/ephy-window.c
@@ -53,6 +53,7 @@
 #include "ephy-title-box.h"
 #include "ephy-title-widget.h"
 #include "ephy-type-builtins.h"
+#include "ephy-view-source-handler.h"
 #include "ephy-web-app-utils.h"
 #include "ephy-web-view.h"
 #include "ephy-zoom.h"
@@ -1509,6 +1510,7 @@ populate_context_menu (WebKitWebView       *web_view,
   gboolean can_search_selection = FALSE;
   char *search_selection_action_name = NULL;
   const char *selected_text = NULL;
+  const char *uri = NULL;
 
   window_action_group = gtk_widget_get_action_group (GTK_WIDGET (window),
                                                      "win");
@@ -1767,8 +1769,12 @@ populate_context_menu (WebKitWebView       *web_view,
 
     webkit_context_menu_append (context_menu,
                                 webkit_context_menu_item_new_separator ());
-    add_action_to_context_menu (context_menu, window_action_group,
-                                "page-source", window);
+    uri = webkit_web_view_get_uri (web_view);
+    if (uri && !strstr (uri, EPHY_VIEW_SOURCE_SCHEME)) {
+      add_action_to_context_menu (context_menu, window_action_group,
+                                  "page-source", window);
+    }
+
     webkit_context_menu_append (context_menu,
                                 webkit_context_menu_item_new_from_stock_action 
(WEBKIT_CONTEXT_MENU_ACTION_INSPECT_ELEMENT));
   }