[gedit/gnome-3-2] Clear the tools accel entry on backspace

[Paolo Borelli <pborelli src gnome org>]

commit 530dd13f593a8525fb832a71628fbe0c6d6748bb
Author: Paolo Borelli <pborelli gnome org>
Date:   Sat Dec 3 11:27:18 2011 +0100

    Clear the tools accel entry on backspace
    
    To intercept backspace we need to connect to the backspace signal.
    Fixes bug #659656

 plugins/externaltools/tools/manager.py |   14 +++++++-------
 plugins/externaltools/tools/tools.ui   |    1 +
 2 files changed, 8 insertions(+), 7 deletions(-)
---
diff --git a/plugins/externaltools/tools/manager.py b/plugins/externaltools/tools/manager.py
index d94f5f5..bead7ba 100644
--- a/plugins/externaltools/tools/manager.py
+++ b/plugins/externaltools/tools/manager.py
@@ -287,6 +287,7 @@ class Manager:
             'on_accelerator_key_press'        : self.on_accelerator_key_press,
             '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_languages_button_clicked'     : self.on_languages_button_clicked
         }
 
@@ -801,13 +802,6 @@ class Manager:
             entry.set_text(default(self.current_node.shortcut, ''))
             self['commands'].grab_focus()
             return True
-        elif event.keyval == Gdk.KEY_Delete \
-          or event.keyval == Gdk.KEY_BackSpace:
-            entry.set_text('')
-            self.remove_accelerator(self.current_node)
-            self.current_node.shortcut = None
-            self['commands'].grab_focus()
-            return True
         elif event.keyval in range(Gdk.KEY_F1, Gdk.KEY_F12 + 1):
             # New accelerator
             if self.set_accelerator(event.keyval, mask):
@@ -840,6 +834,12 @@ class Manager:
             entry.set_text(default(self.current_node.shortcut, ''))
             self.tool_changed(self.current_node)
 
+    def on_accelerator_backspace(self, entry):
+        entry.set_text('')
+        self.remove_accelerator(self.current_node)
+        self.current_node.shortcut = None
+        self['commands'].grab_focus()
+
     def on_tool_manager_dialog_response(self, dialog, response):
         if response == Gtk.ResponseType.HELP:
             Gedit.App.get_default().show_help(self.dialog, 'gedit', 'gedit-plugins-external-tools')
diff --git a/plugins/externaltools/tools/tools.ui b/plugins/externaltools/tools/tools.ui
index c6aad43..8b6e072 100644
--- a/plugins/externaltools/tools/tools.ui
+++ b/plugins/externaltools/tools/tools.ui
@@ -384,6 +384,7 @@
                             <signal name="key-press-event" handler="on_accelerator_key_press" swapped="no"/>
                             <signal name="focus-out-event" handler="on_accelerator_focus_out" swapped="no"/>
                             <signal name="focus-in-event" handler="on_accelerator_focus_in" swapped="no"/>
+                            <signal name="backspace" handler="on_accelerator_backspace" swapped="no"/>
                           </object>
                           <packing>
                             <property name="left_attach">1</property>