163 lines
4.8 KiB
Python
163 lines
4.8 KiB
Python
#!/usr/bin/env python3
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# vim:fileencoding=utf-8
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# License: GPL v3 Copyright: 2018, Kovid Goyal <kovid at kovidgoyal.net>
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from types import TracebackType
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from typing import (
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Any, Callable, ContextManager, Dict, Optional, Sequence, Type, Union
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)
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from kitty.types import ParsedShortcut
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from kitty.typing import (
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AbstractEventLoop, BossType, Debug, ImageManagerType, KeyActionType,
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KeyEventType, LoopType, MouseEvent, ScreenSize, TermManagerType
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)
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from .operations import pending_update
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class Handler:
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image_manager_class: Optional[Type[ImageManagerType]] = None
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def _initialize(
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self,
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screen_size: ScreenSize,
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term_manager: TermManagerType,
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schedule_write: Callable[[bytes], None],
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tui_loop: LoopType,
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debug: Debug,
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image_manager: Optional[ImageManagerType] = None
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) -> None:
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from .operations import commander
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self.screen_size = screen_size
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self._term_manager = term_manager
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self._tui_loop = tui_loop
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self._schedule_write = schedule_write
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self.debug = debug
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self.cmd = commander(self)
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self._image_manager = image_manager
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@property
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def image_manager(self) -> ImageManagerType:
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assert self._image_manager is not None
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return self._image_manager
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@property
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def asyncio_loop(self) -> AbstractEventLoop:
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return self._tui_loop.asycio_loop
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def add_shortcut(self, action: KeyActionType, spec: Union[str, ParsedShortcut]) -> None:
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if not hasattr(self, '_key_shortcuts'):
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self._key_shortcuts: Dict[ParsedShortcut, KeyActionType] = {}
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if isinstance(spec, str):
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from kitty.key_encoding import parse_shortcut
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spec = parse_shortcut(spec)
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self._key_shortcuts[spec] = action
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def shortcut_action(self, key_event: KeyEventType) -> Optional[KeyActionType]:
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for sc, action in self._key_shortcuts.items():
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if key_event.matches(sc):
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return action
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def __enter__(self) -> None:
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if self._image_manager is not None:
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self._image_manager.__enter__()
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self.debug.fobj = self
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self.initialize()
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def __exit__(self, etype: type, value: Exception, tb: TracebackType) -> None:
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del self.debug.fobj
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self.finalize()
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if self._image_manager is not None:
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self._image_manager.__exit__(etype, value, tb)
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def initialize(self) -> None:
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pass
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def finalize(self) -> None:
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pass
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def on_resize(self, screen_size: ScreenSize) -> None:
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self.screen_size = screen_size
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def quit_loop(self, return_code: Optional[int] = None) -> None:
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self._tui_loop.quit(return_code)
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def on_term(self) -> None:
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self._tui_loop.quit(1)
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def on_key_event(self, key_event: KeyEventType, in_bracketed_paste: bool = False) -> None:
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if key_event.text:
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self.on_text(key_event.text, in_bracketed_paste)
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else:
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self.on_key(key_event)
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def on_text(self, text: str, in_bracketed_paste: bool = False) -> None:
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pass
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def on_key(self, key_event: KeyEventType) -> None:
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pass
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def on_mouse(self, mouse_event: 'MouseEvent') -> None:
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pass
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def on_interrupt(self) -> None:
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pass
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def on_eot(self) -> None:
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pass
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def on_writing_finished(self) -> None:
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pass
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def on_kitty_cmd_response(self, response: Dict) -> None:
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pass
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def on_clipboard_response(self, text: str, from_primary: bool = False) -> None:
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pass
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def on_capability_response(self, name: str, val: str) -> None:
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pass
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def write(self, data: Union[bytes, str]) -> None:
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if isinstance(data, str):
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data = data.encode('utf-8')
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self._schedule_write(data)
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def flush(self) -> None:
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pass
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def print(self, *args: object, sep: str = ' ', end: str = '\r\n') -> None:
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data = sep.join(map(str, args)) + end
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self.write(data)
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def suspend(self) -> ContextManager[TermManagerType]:
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return self._term_manager.suspend()
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def pending_update(self) -> ContextManager[None]:
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return pending_update(self.write)
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class HandleResult:
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type_of_input: Optional[str] = None
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no_ui: bool = False
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def __init__(self, impl: Callable, type_of_input: Optional[str], no_ui: bool):
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self.impl = impl
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self.no_ui = no_ui
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self.type_of_input = type_of_input
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def __call__(self, args: Sequence[str], data: Any, target_window_id: int, boss: BossType) -> Any:
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return self.impl(args, data, target_window_id, boss)
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def result_handler(type_of_input: Optional[str] = None, no_ui: bool = False) -> Callable[[Callable], HandleResult]:
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def wrapper(impl: Callable) -> HandleResult:
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return HandleResult(impl, type_of_input, no_ui)
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return wrapper
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