[gnome-music/wip/gbsneto/flowbox: 6/11] toolbar: remove exquisite code

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 3dbd1733506595669a12be154b9b25a020b111ca
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Tue Aug 9 03:29:10 2016 -0300

    toolbar: remove exquisite code
    
    Toolbar is managing the view's selection mode signal
    handling. This is a very bad idea, and makes it impossible
    to move to the flowbox.
    
    Fix this by properly letting the views manage their
    own business.

 gnomemusic/toolbar.py |    8 --------
 gnomemusic/view.py    |    6 ++++++
 2 files changed, 6 insertions(+), 8 deletions(-)
---
diff --git a/gnomemusic/toolbar.py b/gnomemusic/toolbar.py
index 94fa13e..85eb999 100644
--- a/gnomemusic/toolbar.py
+++ b/gnomemusic/toolbar.py
@@ -108,25 +108,17 @@ class Toolbar(GObject.GObject):
 
     @log
     def set_selection_mode(self, selectionMode):
-        self._selection_handler = None
         self._selectionMode = selectionMode
         if selectionMode:
             self._select_button.hide()
             self._cancel_button.show()
             self.header_bar.get_style_context().add_class('selection-mode')
             self._cancel_button.get_style_context().remove_class('selection-mode')
-            view = self._stack_switcher.get_stack().get_visible_child()
-            self._selection_handler = view.view.connect(
-                'view-selection-changed', view._on_view_selection_changed)
         else:
             self.header_bar.get_style_context().remove_class('selection-mode')
             self._select_button.set_active(False)
             self._select_button.show()
             self._cancel_button.hide()
-            view = self._stack_switcher.get_stack().get_visible_child()
-            if self._selection_handler:
-                view.view.disconnect(self._selection_handler)
-            self._selection_handler = None
         self.emit('selection-mode-changed')
         self._update()
 
diff --git a/gnomemusic/view.py b/gnomemusic/view.py
index e6cc260..1022856 100644
--- a/gnomemusic/view.py
+++ b/gnomemusic/view.py
@@ -156,6 +156,8 @@ class ViewContainer(Gtk.Stack):
         self.view.bind_property('selection-mode', self, 'selection_mode',
                                 GObject.BindingFlags.BIDIRECTIONAL)
 
+        self.view.connect('view-selection-changed', self._on_view_selection_changed)
+
         self._box.pack_start(self.view, True, True, 0)
 
     @log
@@ -192,6 +194,10 @@ class ViewContainer(Gtk.Stack):
 
     @log
     def _on_view_selection_changed(self, widget):
+
+        if not self.selection_mode:
+            return
+
         items = self.view.get_selection()
         self.selection_toolbar._add_to_playlist_button.\
             set_sensitive(len(items) > 0)