*.GtkFrame.GtkEventBox.* style for discon

banner (#1731)

src/disco.py

@@ -441,6 +441,8 @@ _('Without a connection, you can not browse available services')).get_response()
 		self.banner = self.xml.get_widget('banner_agent_label')
 		self.banner_icon = self.xml.get_widget('banner_agent_icon')
 		self.banner_eventbox = self.xml.get_widget('banner_agent_eventbox')
+		self.style_event_id = 0
+		self.banner.ensure_style()
 		self.paint_banner()
 		self.filter_hbox = self.xml.get_widget('filter_hbox')
 		self.filter_hbox.set_no_show_all(True)
@@ -534,20 +536,50 @@ _('Without a connection, you can not browse available services')).get_response()
 		theme = gajim.config.get('roster_theme')
 		bgcolor = gajim.config.get_per('themes', theme, 'bannerbgcolor')
 		textcolor = gajim.config.get_per('themes', theme, 'bannertextcolor')
+		self.disconnect_style_event()
 		if bgcolor:
 			color = gtk.gdk.color_parse(bgcolor)
-		else:
-			color = None
 			self.banner_eventbox.modify_bg(gtk.STATE_NORMAL, color)
+			default_bg = False
+		else:
+			default_bg = True
 		
 		if textcolor:
 			color = gtk.gdk.color_parse(textcolor)
-		else:
-			color = None
 			self.banner.modify_fg(gtk.STATE_NORMAL, color)
+			default_fg = False
+		else:
+			default_fg = True
+		if default_fg or default_bg:
+			self._on_style_set_event(self.banner, None, default_fg, default_bg)
 		if self.browser:
 			self.browser.update_theme()
 	
+	def disconnect_style_event(self):
+		if self.style_event_id:
+			self.banner.disconnect(self.style_event_id)
+			self.style_event_id = 0
+	
+	def connect_style_event(self, set_fg = False, set_bg = False):
+		self.disconnect_style_event()
+		self.style_event_id = self.banner.connect('style-set', 
+					self._on_style_set_event, set_fg, set_bg)
+	
+	def _on_style_set_event(self, widget, style, *opts):
+		''' set style of widget from style class *.Frame.Eventbox 
+			opts[0] == True -> set fg color
+			opts[1] == True -> set bg color	'''
+		
+		self.disconnect_style_event()
+		if opts[1]:
+			bg_color = widget.style.bg[gtk.STATE_SELECTED]
+			self.banner_eventbox.modify_bg(gtk.STATE_NORMAL, bg_color)
+		if opts[0]:
+			fg_color = widget.style.fg[gtk.STATE_SELECTED]
+			self.banner.modify_fg(gtk.STATE_NORMAL, fg_color)
+		self.banner.ensure_style()
+		self.connect_style_event(opts[0], opts[1])
+	
 	def destroy(self, chain = False):
 		'''Close the browser. This can optionally close it's children and
 		propagate to the parent. This should happen on actions like register,