Automated update

qutebrowser/venv/lib/python3.11/site-packages/urwid/command_map.py

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+# Urwid CommandMap class
+#    Copyright (C) 2004-2011  Ian Ward
+#
+#    This library is free software; you can redistribute it and/or
+#    modify it under the terms of the GNU Lesser General Public
+#    License as published by the Free Software Foundation; either
+#    version 2.1 of the License, or (at your option) any later version.
+#
+#    This library is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#    Lesser General Public License for more details.
+#
+#    You should have received a copy of the GNU Lesser General Public
+#    License along with this library; if not, write to the Free Software
+#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# Urwid web site: https://urwid.org/
+
+from __future__ import annotations
+
+import enum
+import typing
+
+if typing.TYPE_CHECKING:
+    from collections.abc import Iterator
+
+    from typing_extensions import Self
+
+
+class Command(str, enum.Enum):
+    REDRAW_SCREEN = "redraw screen"
+    UP = "cursor up"
+    DOWN = "cursor down"
+    LEFT = "cursor left"
+    RIGHT = "cursor right"
+    PAGE_UP = "cursor page up"
+    PAGE_DOWN = "cursor page down"
+    MAX_LEFT = "cursor max left"
+    MAX_RIGHT = "cursor max right"
+    ACTIVATE = "activate"
+    MENU = "menu"
+    SELECT_NEXT = "next selectable"
+    SELECT_PREVIOUS = "prev selectable"
+
+
+REDRAW_SCREEN = Command.REDRAW_SCREEN
+CURSOR_UP = Command.UP
+CURSOR_DOWN = Command.DOWN
+CURSOR_LEFT = Command.LEFT
+CURSOR_RIGHT = Command.RIGHT
+CURSOR_PAGE_UP = Command.PAGE_UP
+CURSOR_PAGE_DOWN = Command.PAGE_DOWN
+CURSOR_MAX_LEFT = Command.MAX_LEFT
+CURSOR_MAX_RIGHT = Command.MAX_RIGHT
+ACTIVATE = Command.ACTIVATE
+
+
+class CommandMap(typing.Mapping[str, typing.Union[str, Command, None]]):
+    """
+    dict-like object for looking up commands from keystrokes
+
+    Default values (key: command)::
+
+        'tab':       'next selectable',
+        'ctrl n':    'next selectable',
+        'shift tab': 'prev selectable',
+        'ctrl p':    'prev selectable',
+        'ctrl l':    'redraw screen',
+        'esc':       'menu',
+        'up':        'cursor up',
+        'down':      'cursor down',
+        'left':      'cursor left',
+        'right':     'cursor right',
+        'page up':   'cursor page up',
+        'page down': 'cursor page down',
+        'home':      'cursor max left',
+        'end':       'cursor max right',
+        ' ':         'activate',
+        'enter':     'activate',
+    """
+
+    def __iter__(self) -> Iterator[str]:
+        return iter(self._command)
+
+    def __len__(self) -> int:
+        return len(self._command)
+
+    _command_defaults: typing.ClassVar[dict[str, str | Command]] = {
+        "tab": Command.SELECT_NEXT,
+        "ctrl n": Command.SELECT_NEXT,
+        "shift tab": Command.SELECT_PREVIOUS,
+        "ctrl p": Command.SELECT_PREVIOUS,
+        "ctrl l": Command.REDRAW_SCREEN,
+        "esc": Command.MENU,
+        "up": Command.UP,
+        "down": Command.DOWN,
+        "left": Command.LEFT,
+        "right": Command.RIGHT,
+        "page up": Command.PAGE_UP,
+        "page down": Command.PAGE_DOWN,
+        "home": Command.MAX_LEFT,
+        "end": Command.MAX_RIGHT,
+        " ": Command.ACTIVATE,
+        "enter": Command.ACTIVATE,
+    }
+
+    def __init__(self) -> None:
+        self._command = dict(self._command_defaults)
+
+    def restore_defaults(self) -> None:
+        self._command = dict(self._command_defaults)
+
+    def __getitem__(self, key: str) -> str | Command | None:
+        return self._command.get(key, None)
+
+    def __setitem__(self, key, command: str | Command) -> None:
+        self._command[key] = command
+
+    def __delitem__(self, key: str) -> None:
+        del self._command[key]
+
+    def clear_command(self, command: str | Command) -> None:
+        dk = [k for k, v in self._command.items() if v == command]
+        for k in dk:
+            del self._command[k]
+
+    def copy(self) -> Self:
+        """
+        Return a new copy of this CommandMap, likely so we can modify
+        it separate from a shared one.
+        """
+        c = self.__class__()
+        c._command = dict(self._command)  # pylint: disable=protected-access
+        return c
+
+
+command_map = CommandMap()  # shared command mappings