nowplaying: Create an Autopause Button

This is a PopoverButton that has an autopause.Entry set as the child. I
also override the displayed icon to show the current autopause count.

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

emmental/nowplaying/autopause.py

@@ -4,6 +4,7 @@ import re
 from gi.repository import GObject
 from gi.repository import GLib
 from gi.repository import Gtk
+from .. import buttons
 
 
 class Entry(Gtk.Entry):
@@ -87,3 +88,29 @@ class Entry(Gtk.Entry):
                                 self.value > -1)
         self.set_icon_sensitive(Gtk.EntryIconPosition.SECONDARY,
                                 self.value < 99)
+
+
+class Button(buttons.PopoverButton):
+    """A PopoverButton that displays Autopause count."""
+
+    value = GObject.Property(type=int, default=-1, minimum=-1, maximum=99)
+
+    def __init__(self, **kwargs):
+        """Initialize an Autopause Button."""
+        super().__init__(popover_child=Entry(), **kwargs)
+        self._arrow = Gtk.Image(icon_name="pan-down-symbolic", margin_top=6)
+        self._count = Gtk.Label(yalign=0, halign=Gtk.Align.CENTER,
+                                margin_top=3)
+        self._overlay = Gtk.Overlay(child=self._arrow)
+
+        self._overlay.add_overlay(self._count)
+        self.bind_property("value", self.popover_child, "value",
+                           GObject.BindingFlags.BIDIRECTIONAL)
+        self.connect("notify::value", self.__notify_value)
+
+        self._count.set_markup("<small></small>")
+        self.set_child(self._overlay)
+
+    def __notify_value(self, button: buttons.PopoverButton, param) -> None:
+        text = str(self.value) if self.value > -1 else ""
+        self._count.set_markup(f"<small>{text}</small>")

tests/nowplaying/test_autopause.py

@@ -146,3 +146,50 @@ class TestAutopauseEntry(unittest.TestCase):
                 self.entry.set_text(text)
                 self.entry.emit("activate")
                 self.assertEqual(self.entry.value, value,  f"text=\"{text}\"")
+
+
+class TestAutopauseButton(unittest.TestCase):
+    """Test our Autopause Popover Button."""
+
+    def setUp(self):
+        """Set up common variables."""
+        self.button = emmental.nowplaying.autopause.Button()
+
+    def test_init(self):
+        """Test the autopause button."""
+        self.assertIsInstance(self.button, emmental.buttons.PopoverButton)
+        self.assertIsInstance(self.button._overlay, Gtk.Overlay)
+        self.assertIsInstance(self.button.popover_child,
+                              emmental.nowplaying.autopause.Entry)
+        self.assertEqual(self.button.get_child(), self.button._overlay)
+
+    def test_arrow(self):
+        """Test that the arrow image was set up properly."""
+        self.assertIsInstance(self.button._arrow, Gtk.Image)
+        self.assertEqual(self.button._arrow.get_icon_name(),
+                         "pan-down-symbolic")
+        self.assertEqual(self.button._arrow.get_margin_top(), 6)
+        self.assertEqual(self.button._overlay.get_child(), self.button._arrow)
+
+    def test_count(self):
+        """Test that the count label was set up properly."""
+        self.assertIsInstance(self.button._count, Gtk.Label)
+        self.assertEqual(self.button._count.get_yalign(), 0)
+        self.assertEqual(self.button._count.get_halign(), Gtk.Align.CENTER)
+        self.assertEqual(self.button._count.get_margin_top(), 3)
+        self.assertEqual(self.button._count.get_text(), "")
+
+    def test_value(self):
+        """Test the value property."""
+        self.assertEqual(self.button.value, -1)
+
+        self.button.value = 0
+        self.assertEqual(self.button.popover_child.value, 0)
+        self.assertEqual(self.button._count.get_text(), "0")
+
+        self.button.popover_child.value = 1
+        self.assertEqual(self.button.value, 1)
+        self.assertEqual(self.button._count.get_text(), "1")
+
+        self.button.value = -1
+        self.assertEqual(self.button._count.get_text(), "")