Files
Python-With-Gtk-Template/src/libs/singleton.py
T
itdominator 0b231ac749 feat: Complete plugin lifecycle management with lazy loading and runtime reload
Major changes:
- Add unload() method to all plugins for proper cleanup (unregister commands/providers/LSP clients, destroy widgets, clear state)
- Implement lazy widget loading via "show" signal across all containers
- Add autoload: false manifest option for manual/conditional plugin loading
- Add Plugins UI with runtime load/unload toggle via Ctrl+Shift+p
- Implement controller unregistration system with proper signal disconnection
- Add new events: UnregisterCommandEvent, GetFilesEvent, GetSourceViewsEvent, TogglePluginsUiEvent
- Fix signal leaks by tracking and disconnecting handlers in widgets (search/replace, LSP manager, tabs, telescope, markdown preview)
- Add Save/Save As to tabs context menu
- Improve search/replace behavior (selection handling, focus management)
- Add telescope file initialization from existing loaded files
- Refactor plugin reload watcher to dynamically add/remove plugins on filesystem changes
- Add new plugins: file_history, extend_source_view_menu, godot_lsp_client
- Fix bug in prettify_json (undefined variable reference
2026-03-21 13:26:12 -05:00

33 lines
558 B
Python

# Python imports
from typing import Type, TypeVar, Any
# Lib imports
# Application imports
class SingletonError(Exception):
pass
T = TypeVar('T', bound = 'Singleton')
class Singleton:
_instances = {}
def __new__(cls: Type[T], *args: Any, **kwargs: Any) -> T:
if cls in cls._instances: return cls._instances[cls]
instance = super().__new__(cls)
cls._instances[cls] = instance
return instance
@classmethod
def destroy(cls):
if cls in cls._instances:
del cls._instances[cls]