[geary/wip/warn-delete-713875: 1/2] Prompt before deleting messages

[Charles Lindsay <clindsay src gnome org>]

commit 878b984119df35bff3b7f21e47f5cc3d89d779a5
Author: Charles Lindsay <chaz yorba org>
Date:   Mon Feb 10 13:54:08 2014 -0800

    Prompt before deleting messages

 src/client/application/geary-controller.vala |   20 +++++++++++++++++---
 1 files changed, 17 insertions(+), 3 deletions(-)
---
diff --git a/src/client/application/geary-controller.vala b/src/client/application/geary-controller.vala
index 13562cf..52f2256 100644
--- a/src/client/application/geary-controller.vala
+++ b/src/client/application/geary-controller.vala
@@ -1921,6 +1921,16 @@ public class GearyController : Geary.BaseObject {
         return false;
     }
     
+    public bool confirm_delete(int num_messages) {
+        main_window.present();
+        AlertDialog dialog = new ConfirmationDialog(main_window, ngettext(
+            "Do you want to permanently delete this message?",
+            "Do you want to permanently delete these messages?", num_messages),
+            null, _("Delete"));
+        
+        return (dialog.run() == Gtk.ResponseType.OK);
+    }
+    
     private async void archive_or_delete_selection_async(bool archive, bool trash,
         Cancellable? cancellable) throws Error {
         if (main_window.conversation_viewer.current_conversation != null
@@ -1963,10 +1973,14 @@ public class GearyController : Geary.BaseObject {
         debug("Deleting selected messages");
         
         Geary.FolderSupport.Remove? supports_remove = current_folder as Geary.FolderSupport.Remove;
-        if (supports_remove == null)
+        if (supports_remove == null) {
             debug("Folder %s doesn't support remove", current_folder.to_string());
-        else
-            yield supports_remove.remove_email_async(ids, cancellable);
+        } else {
+            if (confirm_delete(ids.size))
+                yield supports_remove.remove_email_async(ids, cancellable);
+            else
+                last_deleted_conversation = null;
+        }
     }
     
     private void on_archive_or_delete_selection_finished(Object? source, AsyncResult result) {