feat: added functional for new disign for timers_screen

kawai_focus/main.py

@@ -1,42 +1,67 @@
 import kivy
 kivy.require('2.3.1')
 
-from kivy.app import App
-from kivy.uix.screenmanager import ScreenManager
 from kivy.lang import Builder
+from kivy.animation import Animation
+from kivy.metrics import dp
+from kivy.uix.behaviors import ButtonBehavior
 from kivy.logger import Logger
 
 import logging
 
-from kawai_focus.screens.timer_screen import TimerScreen
-from kawai_focus.screens.timer_constructor_screen import TimerConstructorScreen
+from kivymd.app import MDApp
+from kivymd.uix.screenmanager import MDScreenManager
+from kivymd.uix.expansionpanel import MDExpansionPanel
+from kivymd.uix.behaviors import RotateBehavior 
+from kivymd.uix.list import MDListItemTrailingIcon
+
+from kawai_focus.menu_app import MenuApp
 from kawai_focus.screens.timers_screen import TimersScreen
-from kawai_focus.database.cruds import list_timers
 
 
 Logger.setLevel(logging.DEBUG)
 
 
-class KawaiFocusApp(App):
-    """Класс для создания приложения"""
+class TrailingPressedIconButton(
+    ButtonBehavior, RotateBehavior, MDListItemTrailingIcon
+): 
+    """Кнопка-иконка в конце элемента списка с поддержкой анимации"""
+    ...
 
-    title = 'Kawai.Focus'
 
-    def build(self):
+class KawaiFocusApp(MDApp, MenuApp):
+    """Главный класс приложения"""
+
+    def build(self) -> MDScreenManager:
+        """Создаёт и возвращает менеджер экранов приложения"""
+        
+        self.theme_cls.theme_style = 'Dark'
         # Загрузка kv файла
-        Builder.load_file('kv/timer_screen.kv')
-        Builder.load_file('kv/timer_constructor_screen.kv')
         Builder.load_file('kv/timers_screen.kv')
 
-        screen_manager = ScreenManager()
-        timers = list_timers()
-        timers_screen = TimersScreen(name='timers_screen')
-        timers_screen.ids.timers_view.data = timers
+        self.screen_manager = MDScreenManager()
+        self.timers_screen = TimersScreen(name='timers_screen')
+        self.screen_manager.add_widget(self.timers_screen)
+
+        return self.screen_manager
+
+    def tap_expansion_chevron(
+        self, panel: MDExpansionPanel, chevron: TrailingPressedIconButton
+    ) -> None:
+        """Анимация и переключение состояния раскрытия панели"""
         
-        screen_manager.add_widget(timers_screen)
-        screen_manager.add_widget(TimerConstructorScreen(name='timer_constructor_screen'))
-        screen_manager.add_widget(TimerScreen(name='timer_screen'))
-        return screen_manager
+        Animation(
+            padding=(
+                [0, dp(12), 0, dp(12)] if not panel.is_open else [0, 0, 0, 0]
+            ),
+            d=0.2,
+        ).start(panel)
+        panel.open() if not panel.is_open else panel.close()
+        (
+            panel.set_chevron_down(chevron)
+            if not panel.is_open
+            else panel.set_chevron_up(chevron)
+        )
 
 
 def main() -> None: