From 4f1a3b5f9ad05aa7b08715d48909a2b06ee2fcb1 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 15 Apr 2024 18:35:31 +0200 Subject: Adding upstream version 3.0.43. Signed-off-by: Daniel Baumann --- src/prompt_toolkit/clipboard/in_memory.py | 44 +++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 src/prompt_toolkit/clipboard/in_memory.py (limited to 'src/prompt_toolkit/clipboard/in_memory.py') diff --git a/src/prompt_toolkit/clipboard/in_memory.py b/src/prompt_toolkit/clipboard/in_memory.py new file mode 100644 index 0000000..d9ae081 --- /dev/null +++ b/src/prompt_toolkit/clipboard/in_memory.py @@ -0,0 +1,44 @@ +from __future__ import annotations + +from collections import deque + +from .base import Clipboard, ClipboardData + +__all__ = [ + "InMemoryClipboard", +] + + +class InMemoryClipboard(Clipboard): + """ + Default clipboard implementation. + Just keep the data in memory. + + This implements a kill-ring, for Emacs mode. + """ + + def __init__(self, data: ClipboardData | None = None, max_size: int = 60) -> None: + assert max_size >= 1 + + self.max_size = max_size + self._ring: deque[ClipboardData] = deque() + + if data is not None: + self.set_data(data) + + def set_data(self, data: ClipboardData) -> None: + self._ring.appendleft(data) + + while len(self._ring) > self.max_size: + self._ring.pop() + + def get_data(self) -> ClipboardData: + if self._ring: + return self._ring[0] + else: + return ClipboardData() + + def rotate(self) -> None: + if self._ring: + # Add the very first item at the end. + self._ring.append(self._ring.popleft()) -- cgit v1.2.3