[kupfer] ui: Implement double-click on icons to activate

[Ulrik Sverdrup <usverdrup src gnome org>]

commit 519852d9cfcb6a3fa0a8acdfa5b8a7ff539cd1c5
Author: Ulrik Sverdrup <ulrik sverdrup gmail com>
Date:   Mon Mar 21 15:22:39 2011 +0100

    ui: Implement double-click on icons to activate
    
    Launchpad-bug: https://bugs.launchpad.net/kupfer/+bug/700948

 kupfer/ui/browser.py |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/kupfer/ui/browser.py b/kupfer/ui/browser.py
index 0054dfa..68e7d67 100644
--- a/kupfer/ui/browser.py
+++ b/kupfer/ui/browser.py
@@ -935,6 +935,7 @@ class Interface (gobject.GObject):
 		# as well as window => panewidgets
 		for widget in (self.search, self.action, self.third):
 			widget.connect("activate", self._activate)
+			widget.connect("button-press-event", self._panewidget_button_press)
 			widget.connect("cursor-changed", self._selection_changed)
 			# window signals
 			window.connect("configure-event", widget._window_config)
@@ -1474,6 +1475,13 @@ class Interface (gobject.GObject):
 		wid = self._widget_for_pane(pane)
 		wid.set_object_stack(controller.get_object_stack(pane))
 
+	def _panewidget_button_press(self, widget, event):
+		" mouse clicked on a pane widget "
+		# activate on double-click
+		if event.type == gtk.gdk._2BUTTON_PRESS:
+			self.activate()
+			return True
+
 	def _selection_changed(self, widget, match):
 		pane = self._pane_for_widget(widget)
 		self.data_controller.select(pane, match)