[glom] Button scripts and Field Calculations: Test button: Check for pygtk2.

[Murray Cumming <murrayc src gnome org>]

commit 42ab98987c3ef79b2dbaa9b7c94f78d07e5eed6a
Author: Murray Cumming <murrayc murrayc com>
Date:   Sun Feb 5 21:53:10 2012 +0100

    Button scripts and Field Calculations: Test button: Check for pygtk2.
    
    * glom/mode_data/box_data.cc: :execute_button_script(): Move the
    warning UI into
    * glom/utils_ui.[h|cc]: a new script_check_for_pygtk2_with_warning()
    method.
    * glom/mode_design/fields/dialog_fieldcalculation.cc: on_button_test():
    * glom/mode_design/layout/layout_item_dialogs/dialog_buttonscript.cc:
    on_button_test_script(): Use the new function here.

 ChangeLog                                          |   12 ++++++++++++
 glom/mode_data/box_data.cc                         |    6 +-----
 glom/mode_design/fields/dialog_fieldcalculation.cc |    3 +++
 .../layout_item_dialogs/dialog_buttonscript.cc     |    2 ++
 glom/utils_ui.cc                                   |   12 ++++++++++++
 glom/utils_ui.h                                    |    5 +++++
 6 files changed, 35 insertions(+), 5 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 650bcc2..b00b0ca 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,15 @@
+2012-02-05  Murray Cumming  <murrayc murrayc com>
+
+	Button scripts and Field Calculations: Test button: Check for pygtk2.
+
+	* glom/mode_data/box_data.cc: :execute_button_script(): Move the 
+	warning UI into 
+	* glom/utils_ui.[h|cc]: a new script_check_for_pygtk2_with_warning()
+	method.
+	* glom/mode_design/fields/dialog_fieldcalculation.cc: on_button_test():
+	* glom/mode_design/layout/layout_item_dialogs/dialog_buttonscript.cc:
+	on_button_test_script(): Use the new function here.
+
 2012-02-03  Murray Cumming  <murrayc murrayc com>
 
 	Button scripts: Check and warn about pygtk2 instead of crashing.
diff --git a/glom/mode_data/box_data.cc b/glom/mode_data/box_data.cc
index c3c701b..ca00dd7 100644
--- a/glom/mode_data/box_data.cc
+++ b/glom/mode_data/box_data.cc
@@ -353,12 +353,8 @@ Glib::ustring Box_Data::get_layout_name() const
 void Box_Data::execute_button_script(const sharedptr<const LayoutItem_Button>& layout_item, const Gnome::Gda::Value& primary_key_value)
 {
   const Glib::ustring script = layout_item->get_script();
-  if(!Utils::script_check_for_pygtk2(script))
-  {
-    Utils::show_ok_dialog(_("Script Uses PyGTK 2"),
-      _("Glom cannot run this script because it uses pygtk 2, but Glom uses GTK+ 3, and attempting to use pygtk 2 would cause Glom to crash."), *get_app_window(), Gtk::MESSAGE_ERROR);
+  if(!Utils::script_check_for_pygtk2_with_warning(script, get_app_window()))
     return;
-  }
 
   const sharedptr<Field> field_primary_key = get_field_primary_key();
   const type_map_fields field_values = get_record_field_values_for_calculation(m_table_name, field_primary_key, primary_key_value);
diff --git a/glom/mode_design/fields/dialog_fieldcalculation.cc b/glom/mode_design/fields/dialog_fieldcalculation.cc
index a882b34..ce2e1a1 100644
--- a/glom/mode_design/fields/dialog_fieldcalculation.cc
+++ b/glom/mode_design/fields/dialog_fieldcalculation.cc
@@ -113,6 +113,9 @@ void Dialog_FieldCalculation::on_button_test()
   if(!check_for_return_statement(calculation))
     return;
 
+  if(!Utils::script_check_for_pygtk2_with_warning(calculation, this))
+    return;
+
   type_map_fields field_values;
 
   Document* document = get_document();
diff --git a/glom/mode_design/layout/layout_item_dialogs/dialog_buttonscript.cc b/glom/mode_design/layout/layout_item_dialogs/dialog_buttonscript.cc
index 92bc4a4..3164a59 100644
--- a/glom/mode_design/layout/layout_item_dialogs/dialog_buttonscript.cc
+++ b/glom/mode_design/layout/layout_item_dialogs/dialog_buttonscript.cc
@@ -105,6 +105,8 @@ void Dialog_ButtonScript::get_script(const sharedptr<LayoutItem_Button>& script)
 void Dialog_ButtonScript::on_button_test_script()
 {
   const Glib::ustring calculation = m_text_view_script->get_buffer()->get_text();
+  if(!Utils::script_check_for_pygtk2_with_warning(calculation, this))
+    return;
 
   type_map_fields field_values;
 
diff --git a/glom/utils_ui.cc b/glom/utils_ui.cc
index ed6adfd..25e8d39 100644
--- a/glom/utils_ui.cc
+++ b/glom/utils_ui.cc
@@ -534,4 +534,16 @@ std::string Utils::get_icon_path(const Glib::ustring& filename)
 #endif
 }
 
+bool Utils::script_check_for_pygtk2_with_warning(const Glib::ustring& script, Gtk::Window* parent_window)
+{
+  if(!Utils::script_check_for_pygtk2(script))
+  {
+    Utils::show_ok_dialog(_("Script Uses PyGTK 2"),
+      _("Glom cannot run this script because it uses pygtk 2, but Glom uses GTK+ 3, and attempting to use pygtk 2 would cause Glom to crash."), parent_window, Gtk::MESSAGE_ERROR);
+    return false;
+  }
+
+  return true;
+}
+
 } //namespace Glom
diff --git a/glom/utils_ui.h b/glom/utils_ui.h
index 5febc5e..d37da5b 100644
--- a/glom/utils_ui.h
+++ b/glom/utils_ui.h
@@ -98,6 +98,11 @@ void show_report_in_browser(const std::string& filepath, Gtk::Window* parent_win
 
 std::string get_icon_path(const Glib::ustring& filename);
 
+/** Runs libglom's Utils::script_check_for_pygtk2() and shows
+ * a warning dialog if necessary.
+ */
+bool script_check_for_pygtk2_with_warning(const Glib::ustring& script, Gtk::Window* parent_window);
+
 } //namespace Utils
 
 } //namespace Glom