# HG changeset patch
# User John Donoghue <john.donoghue@ieee.org>
# Date 1374172231 14400
# Node ID adf06e03fbdd0b7a58e6c3d8a66fec0729e0c454
# Parent  21ed3e2c3be619ee1f67bf7eb9c1c4ce7a69ddda
Enable/disable editor actions based on available editor windows

* libgui/src/m-editor/file-editor.h, libgui/src/m-editor/file-editor.cc
  (class file_editor): Added remove_bookmark, close_all and close_others actions as class variables.
  (file_editor::check_actions): New functions.
  (file_editor::add_file_editor_tab): call check_actions.
  (file_editor::construct): call check_actions, use new class vars where added.
  (file_editor::handle_tab_remove_request): call check_actions.

diff --git a/libgui/src/m-editor/file-editor.cc b/libgui/src/m-editor/file-editor.cc
--- a/libgui/src/m-editor/file-editor.cc
+++ b/libgui/src/m-editor/file-editor.cc
@@ -674,6 +674,7 @@
             }
         }
     }
+    check_actions ();
 }
 
 void
@@ -775,7 +776,7 @@
 
   _toggle_bookmark_action = new QAction (tr ("Toggle &Bookmark"), _tool_bar);
 
-  QAction *remove_bookmark_action
+  _remove_bookmark_action
     = new QAction (tr ("&Remove All Bookmarks"), _tool_bar);
 
   QAction *next_breakpoint_action
@@ -875,10 +876,12 @@
       fileMenu->addAction (QIcon::fromTheme("window-close",
                                   QIcon (":/actions/icons/fileclose.png")),
                        tr ("&Close"), this, SLOT (request_close_file (bool)));
-  fileMenu->addAction (QIcon::fromTheme("window-close",
+  _close_all_action =
+      fileMenu->addAction (QIcon::fromTheme("window-close",
                                       QIcon (":/actions/icons/fileclose.png")),
                        tr ("Close All"),
                        this, SLOT (request_close_all_files (bool)));
+  _close_others_action = 
   fileMenu->addAction (QIcon::fromTheme("window-close",
                                       QIcon (":/actions/icons/fileclose.png")),
                        tr ("Close Other Files"),
@@ -906,7 +909,7 @@
   editMenu->addAction (_toggle_bookmark_action);
   editMenu->addAction (_next_bookmark_action);
   editMenu->addAction (_previous_bookmark_action);
-  editMenu->addAction (remove_bookmark_action);
+  editMenu->addAction (_remove_bookmark_action);
   editMenu->addSeparator ();
   editMenu->addAction (_goto_line_action);
   _menu_bar->addMenu (editMenu);
@@ -985,7 +988,7 @@
   connect (_previous_bookmark_action, SIGNAL (triggered ()),
            this, SLOT (request_previous_bookmark ()));
 
-  connect (remove_bookmark_action, SIGNAL (triggered ()),
+  connect (_remove_bookmark_action, SIGNAL (triggered ()),
            this, SLOT (request_remove_bookmark ()));
 
   connect (toggle_breakpoint_action, SIGNAL (triggered ()),
@@ -1036,6 +1039,8 @@
       for (int n = 0; n < sessionFileNames.count (); ++n)
         request_open_file (sessionFileNames.at (n));
     }
+
+    check_actions ();
 }
 
 void
@@ -1164,6 +1169,8 @@
            f, SLOT (do_breakpoint_marker (bool, const QWidget*, int)));
 
   _tab_widget->setCurrentWidget (f);
+
+  check_actions ();
 }
 
 void
@@ -1246,5 +1253,37 @@
     }
 }
 
+void
+file_editor::check_actions ()
+{
+  bool  have_tabs = _tab_widget->count () > 0;
+
+  _comment_selection_action->setEnabled (have_tabs);
+  _uncomment_selection_action->setEnabled (have_tabs);
+
+  _copy_action->setEnabled (have_tabs);
+  _cut_action->setEnabled (have_tabs);
+  _paste_action->setEnabled (have_tabs);
+
+  _find_action->setEnabled (have_tabs);
+  _goto_line_action->setEnabled (have_tabs);
+
+  _next_bookmark_action->setEnabled (have_tabs);
+  _previous_bookmark_action->setEnabled (have_tabs);
+  _toggle_bookmark_action->setEnabled (have_tabs);
+
+  _print_action->setEnabled (have_tabs);
+  _run_action->setEnabled (have_tabs);
+
+  _save_action->setEnabled (have_tabs);
+  _save_as_action->setEnabled (have_tabs);
+  _close_action->setEnabled (have_tabs);
+  _close_all_action->setEnabled (have_tabs);
+  _close_others_action->setEnabled (have_tabs && _tab_widget->count () > 1);
+
+  _undo_action->setEnabled (have_tabs);
+  _redo_action->setEnabled (have_tabs);
+}
+
 
 #endif
diff --git a/libgui/src/m-editor/file-editor.h b/libgui/src/m-editor/file-editor.h
--- a/libgui/src/m-editor/file-editor.h
+++ b/libgui/src/m-editor/file-editor.h
@@ -57,6 +57,7 @@
   void handle_enter_debug_mode (void);
   void handle_exit_debug_mode (void);
 
+  void check_actions (void);
 signals:
 
   void fetab_settings_changed (const QSettings *settings);
@@ -196,6 +197,7 @@
   QAction *_next_bookmark_action;
   QAction *_previous_bookmark_action;
   QAction *_toggle_bookmark_action;
+  QAction * _remove_bookmark_action;
 
   QAction *_print_action;
   QAction *_run_action;
@@ -203,6 +205,8 @@
   QAction *_save_action;
   QAction *_save_as_action;
   QAction *_close_action;
+  QAction *_close_all_action;
+  QAction *_close_others_action;
 
   QAction *_redo_action;
   QAction *_undo_action;