feat: update date widget

src/window/desktop/date.py

@@ -4,6 +4,28 @@ from fabric.widgets.datetime import DateTime
 from window.desktop.registry import DesktopWidgetRegistry
 
 
+class _DraggableDateTime(DateTime):
+    """DateTime subclass that lets button-press events propagate to the parent
+    EventBox so GTK drag-and-drop works across the entire widget area.
+
+    GtkButton's class handler (do_button_press_event) returns True at
+    G_SIGNAL_RUN_FIRST, which stops the accumulator before DateTime's own
+    connected handler ever runs.  Both must return False for the event to
+    reach the EventBox where drag_source_set lives.
+    """
+
+    def do_button_press_event(self, event):
+        match event.button:
+            case 1:
+                self.do_cycle_next()
+            case 3:
+                self.do_cycle_prev()
+        return False
+
+    def do_handle_press(self, _widget, _event, *_args):
+        return False
+
+
 class DesktopDateWidget(Box):
     def __init__(self, **kwargs):
         super().__init__(
@@ -24,9 +46,13 @@ class DesktopDateWidget(Box):
         # Since this is just a date widget, we increase the interval to 100000ms (100 seconds)
         # which easily avoids the continuous redraw glitch while keeping the date accurate.
         date_interval = 100000
-        self.dateone = DateTime(formatters=["%a"], interval=date_interval, name="day")
-        self.datetwo = DateTime(formatters=["%b"], interval=date_interval, name="month")
-        self.datethree = DateTime(
+        self.dateone = _DraggableDateTime(
+            formatters=["%a"], interval=date_interval, name="day"
+        )
+        self.datetwo = _DraggableDateTime(
+            formatters=["%b"], interval=date_interval, name="month"
+        )
+        self.datethree = _DraggableDateTime(
             formatters=["%-d"], interval=date_interval, name="date"
         )
         self.top.add(self.dateone)