feat: dedicated emitter

dzgui/views/mixins/cursor_mixin.py

@@ -2,6 +2,7 @@ from dzgui.const.enum import CursorPosition
 from dzgui.const.constants import SEPARATOR
 
 import gi
+
 gi.require_version("Gtk", "3.0")
 from gi.repository import Gtk, GLib, Gdk, GObject, Pango  # noqa E402
 
@@ -20,7 +21,7 @@ class CursorMixin:
             case Gdk.KEY_l | Gdk.KEY_Right:
                 if event.state is Gdk.ModifierType.CONTROL_MASK:
                     return
-                self.controller.mediator.right_panel.focus_button_box()
+                self.emitter.emit("request_button_box_focus")
             case _:
                 return False
 

dzgui/views/mixins/help_menu_mixin.py

@@ -0,0 +1,13 @@
+from typing import Literal
+
+from dzgui.const.enum import NotebookPage
+
+import gi
+gi.require_version("Gtk", "3.0")
+from gi.repository import Gtk, Gdk  # noqa
+
+class HelpMenuMixin:
+    def _on_esc_keypress(self, widget: Gtk.Widget, event: Gdk.EventKey) -> Literal[True]:
+        if event.keyval == Gdk.KEY_Escape:
+            self.controller.open_page(NotebookPage.HELP)
+            return True

dzgui/views/mixins/scrollable_mixin.py

@@ -2,9 +2,11 @@ from dzgui.const.enum import VAdjustment
 from dzgui.const.constants import SCROLL_INCREMENT
 
 import gi
+
 gi.require_version("Gtk", "3.0")
 from gi.repository import Gtk, Gdk  # noqa
 
+
 class ScrollableMixin:
     def _on_keypress(self, widget: Gtk.Widget, event: Gdk.EventKey) -> None:
         match event.keyval:
@@ -16,6 +18,8 @@ class ScrollableMixin:
                 self._set_adjustment(VAdjustment.TOP)
             case Gdk.KEY_G:
                 self._set_adjustment(VAdjustment.BOTTOM)
+            case Gdk.KEY_l | Gdk.KEY_Right:
+                self.controller.get_emitter().emit("request_button_box_focus")
 
     def _set_adjustment(self, adjustment: VAdjustment) -> None:
         vadj = self.get_vadjustment()
@@ -29,4 +33,3 @@ class ScrollableMixin:
             case VAdjustment.DOWN:
                 adj = vadj.get_value() + SCROLL_INCREMENT
         vadj.set_value(adj)
-