playlist: Add a Filter to the controls

And respond when text is typed in the search bar

Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>

playlist/controls.py

@@ -1,4 +1,5 @@
 # Copyright 2021 (c) Anna Schumaker.
+from . import filter
 from gi.repository import Gtk
 import trackdb
 
@@ -6,9 +7,11 @@ class Controls(Gtk.Box):
     def __init__(self):
         Gtk.Box.__init__(self)
         self.tag = None
+        self.filter = filter.Filter()
 
         self.search = Gtk.SearchEntry()
         self.search.set_property("placeholder-text", "Type to filter tracks")
+        self.search.connect("search-changed", self.search_changed)
         self.search.set_hexpand(True)
         self.append(self.search)
 
@@ -42,3 +45,10 @@ class Controls(Gtk.Box):
     def loop_toggled(self, toggle):
         self.tag.loop = toggle.get_active()
         trackdb.save()
+
+    def search_changed(self, search):
+        try:
+            self.filter.set_search_text(search.get_text())
+            self.search.remove_css_class("warning")
+        except:
+            self.search.add_css_class("warning")

playlist/test_controls.py

@@ -1,5 +1,6 @@
 # Copyright 2021 (c) Anna Schumaker.
 from . import controls
+from . import filter
 from gi.repository import Gtk
 import trackdb
 import unittest
@@ -12,6 +13,7 @@ class TestPlaylistControls(unittest.TestCase):
         self.assertIsInstance(ctrl.search, Gtk.SearchEntry)
         self.assertIsInstance(ctrl.random, Gtk.ToggleButton)
         self.assertIsInstance(ctrl.loop, Gtk.ToggleButton)
+        self.assertIsInstance(ctrl.filter, filter.Filter)
 
         self.assertEqual(ctrl.random.get_icon_name(), "media-playlist-shuffle")
         self.assertEqual(ctrl.loop.get_icon_name(), "media-playlist-repeat")