diff options
Diffstat (limited to '')
| -rw-r--r-- | src/prompt_toolkit/clipboard/__init__.py | 15 | ||||
| -rw-r--r-- | src/prompt_toolkit/clipboard/base.py | 107 | ||||
| -rw-r--r-- | src/prompt_toolkit/clipboard/in_memory.py | 46 | ||||
| -rw-r--r-- | src/prompt_toolkit/clipboard/pyperclip.py | 42 |
4 files changed, 210 insertions, 0 deletions
diff --git a/src/prompt_toolkit/clipboard/__init__.py b/src/prompt_toolkit/clipboard/__init__.py new file mode 100644 index 0000000..160b50a --- /dev/null +++ b/src/prompt_toolkit/clipboard/__init__.py @@ -0,0 +1,15 @@ +from .base import Clipboard, ClipboardData, DummyClipboard, DynamicClipboard +from .in_memory import InMemoryClipboard + +# We are not importing `PyperclipClipboard` here, because it would require the +# `pyperclip` module to be present. + +# from .pyperclip import PyperclipClipboard + +__all__ = [ + "Clipboard", + "ClipboardData", + "DummyClipboard", + "DynamicClipboard", + "InMemoryClipboard", +] diff --git a/src/prompt_toolkit/clipboard/base.py b/src/prompt_toolkit/clipboard/base.py new file mode 100644 index 0000000..c24623d --- /dev/null +++ b/src/prompt_toolkit/clipboard/base.py @@ -0,0 +1,107 @@ +""" +Clipboard for command line interface. +""" +from abc import ABCMeta, abstractmethod +from typing import Callable, Optional + +from prompt_toolkit.selection import SelectionType + +__all__ = [ + "Clipboard", + "ClipboardData", + "DummyClipboard", + "DynamicClipboard", +] + + +class ClipboardData: + """ + Text on the clipboard. + + :param text: string + :param type: :class:`~prompt_toolkit.selection.SelectionType` + """ + + def __init__( + self, text: str = "", type: SelectionType = SelectionType.CHARACTERS + ) -> None: + + self.text = text + self.type = type + + +class Clipboard(metaclass=ABCMeta): + """ + Abstract baseclass for clipboards. + (An implementation can be in memory, it can share the X11 or Windows + keyboard, or can be persistent.) + """ + + @abstractmethod + def set_data(self, data: ClipboardData) -> None: + """ + Set data to the clipboard. + + :param data: :class:`~.ClipboardData` instance. + """ + + def set_text(self, text: str) -> None: # Not abstract. + """ + Shortcut for setting plain text on clipboard. + """ + self.set_data(ClipboardData(text)) + + def rotate(self) -> None: + """ + For Emacs mode, rotate the kill ring. + """ + + @abstractmethod + def get_data(self) -> ClipboardData: + """ + Return clipboard data. + """ + + +class DummyClipboard(Clipboard): + """ + Clipboard implementation that doesn't remember anything. + """ + + def set_data(self, data: ClipboardData) -> None: + pass + + def set_text(self, text: str) -> None: + pass + + def rotate(self) -> None: + pass + + def get_data(self) -> ClipboardData: + return ClipboardData() + + +class DynamicClipboard(Clipboard): + """ + Clipboard class that can dynamically returns any Clipboard. + + :param get_clipboard: Callable that returns a :class:`.Clipboard` instance. + """ + + def __init__(self, get_clipboard: Callable[[], Optional[Clipboard]]) -> None: + self.get_clipboard = get_clipboard + + def _clipboard(self) -> Clipboard: + return self.get_clipboard() or DummyClipboard() + + def set_data(self, data: ClipboardData) -> None: + self._clipboard().set_data(data) + + def set_text(self, text: str) -> None: + self._clipboard().set_text(text) + + def rotate(self) -> None: + self._clipboard().rotate() + + def get_data(self) -> ClipboardData: + return self._clipboard().get_data() diff --git a/src/prompt_toolkit/clipboard/in_memory.py b/src/prompt_toolkit/clipboard/in_memory.py new file mode 100644 index 0000000..1902e36 --- /dev/null +++ b/src/prompt_toolkit/clipboard/in_memory.py @@ -0,0 +1,46 @@ +from collections import deque +from typing import Deque, Optional + +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: Optional[ClipboardData] = 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()) diff --git a/src/prompt_toolkit/clipboard/pyperclip.py b/src/prompt_toolkit/clipboard/pyperclip.py new file mode 100644 index 0000000..c8cb7af --- /dev/null +++ b/src/prompt_toolkit/clipboard/pyperclip.py @@ -0,0 +1,42 @@ +from typing import Optional + +import pyperclip + +from prompt_toolkit.selection import SelectionType + +from .base import Clipboard, ClipboardData + +__all__ = [ + "PyperclipClipboard", +] + + +class PyperclipClipboard(Clipboard): + """ + Clipboard that synchronizes with the Windows/Mac/Linux system clipboard, + using the pyperclip module. + """ + + def __init__(self) -> None: + self._data: Optional[ClipboardData] = None + + def set_data(self, data: ClipboardData) -> None: + self._data = data + pyperclip.copy(data.text) + + def get_data(self) -> ClipboardData: + text = pyperclip.paste() + + # When the clipboard data is equal to what we copied last time, reuse + # the `ClipboardData` instance. That way we're sure to keep the same + # `SelectionType`. + if self._data and self._data.text == text: + return self._data + + # Pyperclip returned something else. Create a new `ClipboardData` + # instance. + else: + return ClipboardData( + text=text, + type=SelectionType.LINES if "\n" in text else SelectionType.CHARACTERS, + ) |