[hamster-applet] Add clear icon and change behavior of search entry. Fixes bug 617838.

[Toms Baugis <tbaugis src gnome org>]

commit 7838fea29fcb83eb5757f524f15cad20981464b3
Author: Rodolphe Pelloux-Prayer <rodolphe damsy net>
Date:   Sat May 8 10:59:57 2010 +0200

    Add clear icon and change behavior of search entry. Fixes bug 617838.

 data/overview.ui        |   10 ++++++----
 src/hamster/overview.py |    8 +++++++-
 2 files changed, 13 insertions(+), 5 deletions(-)
---
diff --git a/data/overview.ui b/data/overview.ui
index dc93e27..89e209f 100644
--- a/data/overview.ui
+++ b/data/overview.ui
@@ -4,7 +4,7 @@
   <!-- interface-naming-policy project-wide -->
   <!-- interface-local-resource-path /home/toms/cvs/hamster/data/art -->
   <object class="GtkWindow" id="tabs_window">
-    <property name="title" translatable="yes">Overview â?? Hamster</property>
+    <property name="title" translatable="yes">Overview &#x2014; Hamster</property>
     <property name="default_width">800</property>
     <property name="default_height">600</property>
     <signal name="configure_event" handler="on_tabs_window_configure_event"/>
@@ -238,10 +238,12 @@
                         <property name="visible">True</property>
                         <property name="can_focus">True</property>
                         <property name="invisible_char">&#x2022;</property>
-                        <property name="secondary_icon_stock">gtk-find</property>
+                        <property name="primary_icon_stock">gtk-find</property>
+                        <property name="secondary_icon_stock">gtk-clear</property>
+                        <property name="secondary_icon_activatable">True</property>
                         <property name="primary_icon_sensitive">True</property>
-                        <property name="secondary_icon_sensitive">True</property>
-                        <signal name="activate" handler="on_search_activate"/>
+                        <signal name="changed" handler="on_search_changed"/>
+                        <signal name="icon_press" handler="on_search_icon_press"/>
                       </object>
                     </child>
                   </object>
diff --git a/src/hamster/overview.py b/src/hamster/overview.py
index 9e8b6c2..ede1847 100644
--- a/src/hamster/overview.py
+++ b/src/hamster/overview.py
@@ -200,7 +200,13 @@ class Overview(object):
     def after_activity_update(self, widget):
         self.search()
 
-    def on_search_activate(self, widget):
+    def on_search_icon_press(self, widget, position, data):
+        if position == gtk.ENTRY_ICON_SECONDARY:
+            widget.set_text('')
+
+    def on_search_changed(self, widget):
+        has_text = widget.get_text_length() > 0
+        widget.set_icon_sensitive(gtk.ENTRY_ICON_SECONDARY, has_text)
         self.search()
 
     def on_report_button_clicked(self, widget):