def __init__(self, notebook_view, options=None):
GObject.GObject.__init__(self)
self.notebook_view = notebook_view
self.search_entry = SearchEntry()
self.search_entry.connect("terms-changed",
self.on_search_terms_changed)
self.back_forward = BackForwardButton()
self.back_forward.connect("left-clicked", self.on_nav_back_clicked)
self.back_forward.connect("right-clicked", self.on_nav_forward_clicked)
self.navhistory = NavigationHistory(self.back_forward, options)
self.all_views = {}
self.view_to_pane = {}
self._globalise_instance()
