[gedit] Bug 698592 - Add an "Always available" applicability to external tools

[Garrett Regier <gregier src gnome org>]

commit b900092052d47ac2190b099c4877660963a87e9d
Author: Garrett Regier <garrettregier gmail com>
Date:   Sat Jun 29 12:35:16 2013 -0700

    Bug 698592 - Add an "Always available" applicability to external tools
    
    This also fixes the tools menu so it does not display tools which are
    inapplicabile when all documents are closed.

 plugins/externaltools/tools/manager.py           |   13 +++++++++++++
 plugins/externaltools/tools/tools.ui             |    5 +++++
 plugins/externaltools/tools/windowactivatable.py |   16 +++++++++-------
 3 files changed, 27 insertions(+), 7 deletions(-)
---
diff --git a/plugins/externaltools/tools/manager.py b/plugins/externaltools/tools/manager.py
index dafbd25..a654172 100644
--- a/plugins/externaltools/tools/manager.py
+++ b/plugins/externaltools/tools/manager.py
@@ -308,6 +308,7 @@ class Manager(GObject.Object):
             'on_accelerator_focus_in'         : self.on_accelerator_focus_in,
             'on_accelerator_focus_out'        : self.on_accelerator_focus_out,
             'on_accelerator_backspace'        : self.on_accelerator_backspace,
+            'on_applicability_changed'        : self.on_applicability_changed,
             'on_languages_button_clicked'     : self.on_languages_button_clicked
         }
 
@@ -892,6 +893,18 @@ class Manager(GObject.Object):
             alloc = dialog.get_allocation()
             self._size = (alloc.width, alloc.height)
 
+    def on_applicability_changed(self, combo):
+        applicability = combo.get_model().get_value(combo.get_active_iter(),
+                                                    self.NAME_COLUMN)
+
+        if applicability == 'always':
+            if self.current_node is not None:
+                self.current_node.languages = []
+
+            self.fill_languages_button()
+
+        self['languages_button'].set_sensitive(applicability != 'always')
+
     def get_cell_data_cb(self, column, cell, model, piter, user_data=None):
         tool = model.get_value(piter, self.TOOL_COLUMN)
 
diff --git a/plugins/externaltools/tools/tools.ui b/plugins/externaltools/tools/tools.ui
index fd1ab56..8f6d57b 100644
--- a/plugins/externaltools/tools/tools.ui
+++ b/plugins/externaltools/tools/tools.ui
@@ -13,6 +13,10 @@
     </columns>
     <data>
       <row>
+        <col id="0" translatable="yes">Always available</col>
+        <col id="1">always</col>
+      </row>
+      <row>
         <col id="0" translatable="yes">All documents</col>
         <col id="1">all</col>
       </row>
@@ -407,6 +411,7 @@
                                 <property name="visible">True</property>
                                 <property name="can_focus">False</property>
                                 <property name="model">model_applicability</property>
+                                <signal name="changed" handler="on_applicability_changed" swapped="no"/>
                                 <child>
                                   <object class="GtkCellRendererText" id="applicability_renderer"/>
                                   <attributes>
diff --git a/plugins/externaltools/tools/windowactivatable.py 
b/plugins/externaltools/tools/windowactivatable.py
index 368cfd7..7795008 100644
--- a/plugins/externaltools/tools/windowactivatable.py
+++ b/plugins/externaltools/tools/windowactivatable.py
@@ -128,20 +128,22 @@ class ToolMenu(object):
 
     def filter(self, document):
         if document is None:
-            return
-
-        titled = document.get_location() is not None
-        remote = not document.is_local()
+            titled = False
+            remote = False
+            language = None
+        else:
+            titled = document.get_location() is not None
+            remote = not document.is_local()
+            language = document.get_language()
 
         states = {
-            'all' : True,
+            'always': True,
+            'all' : document is not None,
             'local': titled and not remote,
             'remote': titled and remote,
             'titled': titled,
             'untitled': not titled,
         }
-        
-        language = document.get_language()
 
         for action in self._action_group.list_actions():
             if action._tool_item is not None: