playlist: Create a JumpButton

For jumping to the current track

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

playlist/__init__.py

@@ -1,4 +1,5 @@
 # Copyright 2021 (c) Anna Schumaker.
+import audio
 from gi.repository import Gtk
 from . import footer
 from . import header
@@ -18,7 +19,13 @@ class Panel(Gtk.Box):
         self.append(Gtk.Separator.new(Gtk.Orientation.HORIZONTAL))
         self.append(self.footer)
 
+        self.header.get_jump_button().connect("clicked", self.jump_clicked)
+
     def get_playlist(self): return self.window.get_playlist()
     def set_playlist(self, plist):
         self.header.set_playlist(plist)
         self.window.set_playlist(plist)
+
+    def jump_clicked(self, button):
+        view = self.window.get_child()
+        view.track_changed(audio.Player, None, audio.Player.track)

playlist/header.py

@@ -62,6 +62,16 @@ class SortButton(Gtk.MenuButton):
         self.set_sensitive(plist != db.user.Table.find("Previous"))
 
 
+class JumpButton(Gtk.Button):
+    def __init__(self):
+        Gtk.Button.__init__(self)
+        self.set_icon_name("go-jump")
+        self.set_sensitive(False)
+
+    def set_playlist(self, plist):
+        self.set_sensitive(plist is not None)
+
+
 class ControlBox(Gtk.Box):
     def __init__(self):
         Gtk.Box.__init__(self)
@@ -69,12 +79,16 @@ class ControlBox(Gtk.Box):
         self.append(RandomToggle())
         self.append(LoopToggle())
         self.append(SortButton())
+        self.append(JumpButton())
 
         self.set_margin_top(5)
         self.set_margin_bottom(5)
         self.set_margin_start(5)
         self.set_margin_end(5)
 
+    def get_jump_button(self):
+        return self.get_last_child()
+
     def set_playlist(self, plist):
         child = self.get_first_child()
         while child:
@@ -88,5 +102,8 @@ class Header(Gtk.Box):
         self.append(FilterEntry())
         self.append(ControlBox())
 
+    def get_jump_button(self):
+        return self.get_last_child().get_jump_button()
+
     def set_playlist(self, plist):
         self.get_last_child().set_playlist(plist)

playlist/test_header.py

@@ -113,6 +113,20 @@ class TestSortButton(unittest.TestCase):
         self.assertTrue(sort.get_sensitive())
 
 
+class TestJumpButton(unittest.TestCase):
+    def test_init(self):
+        jump = header.JumpButton()
+        self.assertIsInstance(jump, Gtk.Button)
+        self.assertEqual(jump.get_icon_name(), "go-jump")
+        self.assertFalse(jump.get_sensitive())
+
+    def test_set_playlist(self):
+        jump = header.JumpButton()
+        self.assertFalse(jump.get_sensitive())
+        jump.set_playlist(db.user.Table.find("Collection"))
+        self.assertTrue(jump.get_sensitive())
+
+
 class TestControlBox(unittest.TestCase):
     def test_init(self):
         box = header.ControlBox()
@@ -140,11 +154,16 @@ class TestControlBox(unittest.TestCase):
         child = child.get_next_sibling()
         self.assertIsInstance(child, header.SortButton)
 
+        child = child.get_next_sibling()
+        self.assertIsInstance(child, header.JumpButton)
+        self.assertEqual(box.get_jump_button(), child)
+
 
 class TestHeader(unittest.TestCase):
     def test_init(self):
         box = header.Header()
         self.assertIsInstance(box, Gtk.Box)
+        self.assertIsInstance(box.get_jump_button(), header.JumpButton)
         self.assertEqual(box.get_orientation(), Gtk.Orientation.HORIZONTAL)
 
     def test_children(self):