From 51aaa045ff56883653ff2a898613564d618e5f9c Mon Sep 17 00:00:00 2001
From: dave <drykod@gmail.com>
Date: Thu, 05 Nov 2009 21:13:07 +0000
Subject: update change color action

---
diff --git a/addons/changecolor.py b/addons/changecolor.py
index 27ae284..460da32 100644
--- a/addons/changecolor.py
+++ b/addons/changecolor.py
@@ -34,8 +34,12 @@ class ChangeColor(Action):
     """
     ChangeColorEvent
     """
+    # widget address property
     widaddr = TUAMProperty("0")
 
+    # set timeout
+    timeout = 500
+    
     def __init__(self, widaddr=None):
         """Constructor - Change a widget color
         @param widaddr: the widget for which you want to change the color (UAM)
@@ -44,9 +48,8 @@ class ChangeColor(Action):
 
         if widaddr: self.widaddr = widaddr
 
-        self._old_color = None
+        self.init_style = None
         self._new_color = None
-        self.tmp_color = None
 
         self.wid = None        
 
@@ -62,27 +65,23 @@ class ChangeColor(Action):
             raise TypeError("activity argument is Mandatory")
         
         # get widget instance
-        self.wid = find_widget(kwargs["activity"], self.widaddr)
+        self.wid = find_widget(kwargs["activity"], self.widaddr, ignore_errors=False)
     
         if not self.wid:
-            # TODO: error
-            raise TypeError("widget not found")
+            raise NameError("widget not found")
         
         # we have to get the initial color in the sugar rc theme
-        current_style = self.wid.rc_get_style()
-        self._old_color = current_style.bg[gtk.STATE_NORMAL]
+        self.init_style = self.wid.rc_get_style()
 
         # define new color
         self._new_color = gtk.gdk.color_parse(xo_fill_color) 
 
         # set change color timeout (flash)
-        self.timeout = 500
-        self.tmp_color = self._old_color
-        self._handler_id = gobject.timeout_add(self.timeout, self._timeout_cb)
+        self._handler_id = gobject.timeout_add(ChangeColor.timeout, self._timeout_cb)
 
     def undo(self):
         """
-        Go back to the original color
+        Remove timer and go back to the original color
         """
 
         if self._handler_id:
@@ -93,34 +92,31 @@ class ChangeColor(Action):
                 pass
 
         # modify bg color (go back to original color)
-        self.wid.modify_bg(gtk.STATE_NORMAL, self._old_color)
+        self.wid.modify_bg(gtk.STATE_NORMAL, self.init_style.bg[gtk.STATE_NORMAL])
+        self.wid.modify_bg(gtk.STATE_PRELIGHT, self.init_style.bg[gtk.STATE_PRELIGHT])
+        self.wid.modify_bg(gtk.STATE_ACTIVE, self.init_style.bg[gtk.STATE_ACTIVE])
+        self.wid.modify_bg(gtk.STATE_INSENSITIVE, self.init_style.bg[gtk.STATE_INSENSITIVE])
 
     def _timeout_cb(self):
         """
         _timeout_cb triggers the eventfilter callback.
-
-        It is necessary because gobject timers only stop if the callback they
-        trigger returns False
         """
 
-        if self.tmp_color == self._old_color:
-            self.tmp_color = self._new_color
+        if self.wid.rc_get_style().bg[gtk.STATE_NORMAL] == self._new_color:
+            # modify bg color (go back to original color)
+            self.wid.modify_bg(gtk.STATE_NORMAL, self.init_style.bg[gtk.STATE_NORMAL])
+            self.wid.modify_bg(gtk.STATE_PRELIGHT, self.init_style.bg[gtk.STATE_PRELIGHT])
+            self.wid.modify_bg(gtk.STATE_ACTIVE, self.init_style.bg[gtk.STATE_ACTIVE])
+            self.wid.modify_bg(gtk.STATE_INSENSITIVE, self.init_style.bg[gtk.STATE_INSENSITIVE])
         else:
-            self.tmp_color = self._old_color
-
-        # modify bg color
-        self.wid.modify_bg(gtk.STATE_NORMAL, self.tmp_color)
-
-        if self._handler_id:
-            try:
-                #remove the timer
-                gobject.source_remove(self._handler_id)
-            except:
-                pass
-
-        # TODO: reset        
-        self._handler_id = gobject.timeout_add(self.timeout, self._timeout_cb)
+            # modify bg color (to new color)
+            self.wid.modify_bg(gtk.STATE_NORMAL, self._new_color)
+            self.wid.modify_bg(gtk.STATE_PRELIGHT, self._new_color)
+            self.wid.modify_bg(gtk.STATE_ACTIVE, self._new_color)
+            self.wid.modify_bg(gtk.STATE_INSENSITIVE, self._new_color)
         
+        return True
+
 __action__ = {
     "name" : "ChangeColor",
     "display_name" : "Change widget color",
diff --git a/tutorius/gtkutils.py b/tutorius/gtkutils.py
index 1a9cb0f..c96a73f 100644
--- a/tutorius/gtkutils.py
+++ b/tutorius/gtkutils.py
@@ -33,7 +33,7 @@ def raddr_lookup(widget):
     return ".".join(name)
 
 
-def find_widget(base, target_fqdn):
+def find_widget(base, target_fqdn, ignore_errors=True):
     """Find a widget by digging into a parent widget's children tree
     @param base the parent widget
     @param target_fqdn fqdn-style target object name
@@ -57,7 +57,9 @@ def find_widget(base, target_fqdn):
         try:
             obj = get_children(obj)[int(path.pop(0))]
         except:
-            break
+            if ignore_errors:
+                break
+            return None
 
     return obj
 
--
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