dropdown_selector.py

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from os import environ
 
from textual.widgets import Static, SelectionList, Button
from textual.widgets.selection_list import Selection
from textual.screen import ModalScreen
 
 
from daqconf.cider.widgets.configuration_controller import ConfigurationController
 
class SelectSession(Static):
    def compose(self):
        
        self._configuration_controller = self.app.get_screen("main").query_one(ConfigurationController)
        self._sessions =  self._configuration_controller.get_all_sessions()
        is_enabled = self._configuration_controller.is_selected_object_enabled()
        
        selections = [Selection(self._configuration_controller.generate_rich_string(s), s, d) for s, d in zip(self._sessions, is_enabled)]
        
        selection_list =  SelectionList(*selections, id="session_select_list")
        selection_list.border_title = "Select Sessions to toggle object on/off in"
        
        yield selection_list
        yield Button("Apply", id="apply")
        yield Button("Close", id="cancel")
    
    def on_button_pressed(self, event: Button.Pressed):
                
        if event.button.id == "apply":
            selection_list = self.query_one("#session_select_list").selected
 
            # Hacky but ensures we know what we are toggling on/off
            selected_sessions = [(s, s in selection_list) for s in self._sessions]
 
            self._configuration_controller.toggle_disable_conf_obj(selected_sessions)
        else:
            menu = self.app.get_screen("main").query_one("SelectionPanel")
            menu.save_menu_state()
            menu.refresh(recompose=True)
            menu.restore_menu_state()
 
            self.app.screen.dismiss(result="cancel")
        
 
class SelectSessionScreen(ModalScreen):
    css_file_path = f"{environ.get('DAQCONF_SHARE')}/config/textual_dbe/textual_css"
    CSS_PATH = f"{css_file_path}/session_selection_layout.tcss"
 
    def compose(self):
        yield SelectSession()
        
    def on_mount(self)->None:
        self.query_one(SelectSession).focus()