feat: dedicated emitter

dzgui/views/pages/changelog.py

@@ -3,31 +3,35 @@ import logging
 from typing import TYPE_CHECKING
 from importlib import resources
 
-from dzgui.const.constants import APP_NAME_LOWER
+from dzgui.const.constants import APP_NAME_LOWER, CHANGELOG_PATH
+from dzgui.util.strings import missing_changelog
 from dzgui.util.format import format_pango
+from dzgui.views.mixins.help_menu_mixin import HelpMenuMixin
 from dzgui.views.mixins.scrollable_mixin import ScrollableMixin
 
 import gi
+
 gi.require_version("Gtk", "3.0")
 from gi.repository import Gtk  # noqa E402
 
 logger = logging.getLogger(__name__)
 
-
 if TYPE_CHECKING:
     from dzgui.controllers.mc import Controller
 
-class Changelog(ScrollableMixin, Gtk.ScrolledWindow):  # type: ignore
+
+class Changelog(HelpMenuMixin, ScrollableMixin, Gtk.ScrolledWindow):  # type: ignore
     def __init__(self, controller: "Controller"):
         super().__init__(propagate_natural_width=False)
 
         try:
-            changelog = resources.read_text(APP_NAME_LOWER, "data/CHANGELOG.md")
+            changelog = resources.read_text(APP_NAME_LOWER, CHANGELOG_PATH)
         except OSError as e:
             logger.critical(e)
-            changelog = "Error: Failed to read changelog"
+            changelog = missing_changelog
 
         # TODO: should long text be wrapped?
+        self.controller = controller
         formatted = format_pango(changelog)
         self.changelog_label = Gtk.Label(valign=Gtk.Align.START, margin=15)
         self.changelog_label.set_markup(formatted)
@@ -36,3 +40,7 @@ class Changelog(ScrollableMixin, Gtk.ScrolledWindow):  # type: ignore
         self.add(self.box)
 
         self.connect("key-press-event", self._on_keypress)
+        self.connect("key-press-event", self._on_esc_keypress)
+
+    def grab_content_area(self) -> None:
+        self.grab_focus()