/usr/lib/python2.7/dist-packages/prompt_toolkit/application.py is in python-prompt-toolkit 1.0.9-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 | from __future__ import unicode_literals
from .buffer import Buffer, AcceptAction
from .buffer_mapping import BufferMapping
from .clipboard import Clipboard, InMemoryClipboard
from .enums import DEFAULT_BUFFER, EditingMode
from .filters import CLIFilter, to_cli_filter
from .key_binding.bindings.basic import load_basic_bindings
from .key_binding.bindings.emacs import load_emacs_bindings
from .key_binding.bindings.vi import load_vi_bindings
from .key_binding.registry import Registry
from .layout import Window
from .layout.containers import Container
from .layout.controls import BufferControl
from .styles import DEFAULT_STYLE, Style
import six
__all__ = (
'AbortAction',
'Application',
)
class AbortAction(object):
"""
Actions to take on an Exit or Abort exception.
"""
RETRY = 'retry'
RAISE_EXCEPTION = 'raise-exception'
RETURN_NONE = 'return-none'
_all = (RETRY, RAISE_EXCEPTION, RETURN_NONE)
class Application(object):
"""
Application class to be passed to a
:class:`~prompt_toolkit.interface.CommandLineInterface`.
This contains all customizable logic that is not I/O dependent.
(So, what is independent of event loops, input and output.)
This way, such an :class:`.Application` can run easily on several
:class:`~prompt_toolkit.interface.CommandLineInterface` instances, each
with a different I/O backends. that runs for instance over telnet, SSH or
any other I/O backend.
:param layout: A :class:`~prompt_toolkit.layout.containers.Container` instance.
:param buffer: A :class:`~prompt_toolkit.buffer.Buffer` instance for the default buffer.
:param initial_focussed_buffer: Name of the buffer that is focussed during start-up.
:param key_bindings_registry:
:class:`~prompt_toolkit.key_binding.registry.Registry` instance for the
key bindings.
:param clipboard: :class:`~prompt_toolkit.clipboard.base.Clipboard` to use.
:param on_abort: What to do when Control-C is pressed.
:param on_exit: What to do when Control-D is pressed.
:param use_alternate_screen: When True, run the application on the alternate screen buffer.
:param get_title: Callable that returns the current title to be displayed in the terminal.
:param erase_when_done: (bool) Clear the application output when it finishes.
Filters:
:param mouse_support: (:class:`~prompt_toolkit.filters.CLIFilter` or
boolean). When True, enable mouse support.
:param paste_mode: :class:`~prompt_toolkit.filters.CLIFilter` or boolean.
:param ignore_case: :class:`~prompt_toolkit.filters.CLIFilter` or boolean.
:param editing_mode: :class:`~prompt_toolkit.enums.EditingMode`.
Callbacks (all of these should accept a
:class:`~prompt_toolkit.interface.CommandLineInterface` object as input.)
:param on_input_timeout: Called when there is no input for x seconds.
(Fired when any eventloop.onInputTimeout is fired.)
:param on_start: Called when reading input starts.
:param on_stop: Called when reading input ends.
:param on_reset: Called during reset.
:param on_buffer_changed: Called when the content of a buffer has been changed.
:param on_initialize: Called after the
:class:`~prompt_toolkit.interface.CommandLineInterface` initializes.
:param on_render: Called right after rendering.
:param on_invalidate: Called when the UI has been invalidated.
"""
def __init__(self, layout=None, buffer=None, buffers=None,
initial_focussed_buffer=DEFAULT_BUFFER,
style=None,
key_bindings_registry=None, clipboard=None,
on_abort=AbortAction.RAISE_EXCEPTION, on_exit=AbortAction.RAISE_EXCEPTION,
use_alternate_screen=False, mouse_support=False,
get_title=None,
paste_mode=False, ignore_case=False, editing_mode=EditingMode.EMACS,
erase_when_done=False,
on_input_timeout=None, on_start=None, on_stop=None,
on_reset=None, on_initialize=None, on_buffer_changed=None,
on_render=None, on_invalidate=None):
paste_mode = to_cli_filter(paste_mode)
ignore_case = to_cli_filter(ignore_case)
mouse_support = to_cli_filter(mouse_support)
assert layout is None or isinstance(layout, Container)
assert buffer is None or isinstance(buffer, Buffer)
assert buffers is None or isinstance(buffers, (dict, BufferMapping))
assert key_bindings_registry is None or isinstance(key_bindings_registry, Registry)
assert clipboard is None or isinstance(clipboard, Clipboard)
assert on_abort in AbortAction._all
assert on_exit in AbortAction._all
assert isinstance(use_alternate_screen, bool)
assert get_title is None or callable(get_title)
assert isinstance(paste_mode, CLIFilter)
assert isinstance(ignore_case, CLIFilter)
assert isinstance(editing_mode, six.string_types)
assert on_input_timeout is None or callable(on_input_timeout)
assert style is None or isinstance(style, Style)
assert isinstance(erase_when_done, bool)
assert on_start is None or callable(on_start)
assert on_stop is None or callable(on_stop)
assert on_reset is None or callable(on_reset)
assert on_buffer_changed is None or callable(on_buffer_changed)
assert on_initialize is None or callable(on_initialize)
assert on_render is None or callable(on_render)
assert on_invalidate is None or callable(on_invalidate)
self.layout = layout or Window(BufferControl())
# Make sure that the 'buffers' dictionary is a BufferMapping.
# NOTE: If no buffer is given, we create a default Buffer, with IGNORE as
# default accept_action. This is what makes sense for most users
# creating full screen applications. Doing nothing is the obvious
# default. Those creating a REPL would use the shortcuts module that
# passes in RETURN_DOCUMENT.
self.buffer = buffer or Buffer(accept_action=AcceptAction.IGNORE)
if not buffers or not isinstance(buffers, BufferMapping):
self.buffers = BufferMapping(buffers, initial=initial_focussed_buffer)
else:
self.buffers = buffers
if buffer:
self.buffers[DEFAULT_BUFFER] = buffer
self.initial_focussed_buffer = initial_focussed_buffer
self.style = style or DEFAULT_STYLE
if key_bindings_registry is None:
key_bindings_registry = Registry()
load_basic_bindings(key_bindings_registry)
load_emacs_bindings(key_bindings_registry)
load_vi_bindings(key_bindings_registry)
if get_title is None:
get_title = lambda: None
self.key_bindings_registry = key_bindings_registry
self.clipboard = clipboard or InMemoryClipboard()
self.on_abort = on_abort
self.on_exit = on_exit
self.use_alternate_screen = use_alternate_screen
self.mouse_support = mouse_support
self.get_title = get_title
self.paste_mode = paste_mode
self.ignore_case = ignore_case
self.editing_mode = editing_mode
self.erase_when_done = erase_when_done
def dummy_handler(cli):
" Dummy event handler. "
self.on_input_timeout = on_input_timeout or dummy_handler
self.on_start = on_start or dummy_handler
self.on_stop = on_stop or dummy_handler
self.on_reset = on_reset or dummy_handler
self.on_initialize = on_initialize or dummy_handler
self.on_buffer_changed = on_buffer_changed or dummy_handler
self.on_render = on_render or dummy_handler
self.on_invalidate = on_invalidate or dummy_handler
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