|
|
"""Module contains the class to create a rawlist prompt.""" |
|
|
from typing import Any, Callable, List, Optional, Tuple, Union |
|
|
|
|
|
from InquirerPy.base import InquirerPyUIListControl |
|
|
from InquirerPy.enum import INQUIRERPY_POINTER_SEQUENCE |
|
|
from InquirerPy.exceptions import InvalidArgument |
|
|
from InquirerPy.prompts.list import ListPrompt |
|
|
from InquirerPy.separator import Separator |
|
|
from InquirerPy.utils import ( |
|
|
InquirerPyDefault, |
|
|
InquirerPyKeybindings, |
|
|
InquirerPyListChoices, |
|
|
InquirerPyMessage, |
|
|
InquirerPySessionResult, |
|
|
InquirerPyStyle, |
|
|
InquirerPyValidate, |
|
|
) |
|
|
|
|
|
__all__ = ["RawlistPrompt"] |
|
|
|
|
|
|
|
|
class InquirerPyRawlistControl(InquirerPyUIListControl): |
|
|
"""An :class:`~prompt_toolkit.layout.UIControl` class that displays a list of choices. |
|
|
|
|
|
Reference the parameter definition in :class:`.RawlistPrompt`. |
|
|
""" |
|
|
|
|
|
def __init__( |
|
|
self, |
|
|
choices: InquirerPyListChoices, |
|
|
default: Any, |
|
|
pointer: str, |
|
|
separator: str, |
|
|
marker: str, |
|
|
session_result: Optional[InquirerPySessionResult], |
|
|
multiselect: bool, |
|
|
marker_pl: str, |
|
|
) -> None: |
|
|
self._pointer = pointer |
|
|
self._separator = separator |
|
|
self._marker = marker |
|
|
self._marker_pl = marker_pl |
|
|
super().__init__( |
|
|
choices=choices, |
|
|
default=default, |
|
|
session_result=session_result, |
|
|
multiselect=multiselect, |
|
|
) |
|
|
|
|
|
def _format_choices(self) -> None: |
|
|
separator_count = 0 |
|
|
for index, choice in enumerate(self.choices): |
|
|
if isinstance(choice["value"], Separator): |
|
|
separator_count += 1 |
|
|
continue |
|
|
choice["display_index"] = index + 1 - separator_count |
|
|
choice["actual_index"] = index |
|
|
|
|
|
if self.choices: |
|
|
first_valid_choice_index = 0 |
|
|
while isinstance( |
|
|
self.choices[first_valid_choice_index]["value"], Separator |
|
|
): |
|
|
first_valid_choice_index += 1 |
|
|
if self.selected_choice_index == first_valid_choice_index: |
|
|
for choice in self.choices: |
|
|
if isinstance(choice["value"], Separator): |
|
|
continue |
|
|
if choice["display_index"] == self._default: |
|
|
self.selected_choice_index = choice["actual_index"] |
|
|
break |
|
|
|
|
|
def _get_hover_text(self, choice) -> List[Tuple[str, str]]: |
|
|
display_choices = [] |
|
|
display_choices.append(("class:pointer", self._pointer)) |
|
|
display_choices.append( |
|
|
( |
|
|
"class:marker", |
|
|
self._marker if choice["enabled"] else self._marker_pl, |
|
|
) |
|
|
) |
|
|
if not isinstance(choice["value"], Separator): |
|
|
display_choices.append( |
|
|
( |
|
|
"class:pointer", |
|
|
"%s%s" % (str(choice["display_index"]), self._separator), |
|
|
) |
|
|
) |
|
|
display_choices.append(("[SetCursorPosition]", "")) |
|
|
display_choices.append(("class:pointer", choice["name"])) |
|
|
return display_choices |
|
|
|
|
|
def _get_normal_text(self, choice) -> List[Tuple[str, str]]: |
|
|
display_choices = [] |
|
|
display_choices.append(("", len(self._pointer) * " ")) |
|
|
display_choices.append( |
|
|
( |
|
|
"class:marker", |
|
|
self._marker if choice["enabled"] else self._marker_pl, |
|
|
) |
|
|
) |
|
|
if not isinstance(choice["value"], Separator): |
|
|
display_choices.append( |
|
|
("", "%s%s" % (str(choice["display_index"]), self._separator)) |
|
|
) |
|
|
display_choices.append(("", choice["name"])) |
|
|
else: |
|
|
display_choices.append(("class:separator", choice["name"])) |
|
|
return display_choices |
|
|
|
|
|
|
|
|
class RawlistPrompt(ListPrompt): |
|
|
"""Create a prompt that displays a list of choices with index number as shortcuts. |
|
|
|
|
|
A wrapper class around :class:`~prompt_toolkit.application.Application`. |
|
|
|
|
|
Each choice will have an index number infront of them with keybinding created for that index number. |
|
|
Enables user to use number to jump to different choices using number. |
|
|
|
|
|
Args: |
|
|
message: The question to ask the user. |
|
|
Refer to :ref:`pages/dynamic:message` documentation for more details. |
|
|
choices: List of choices to display and select. |
|
|
Refer to :ref:`pages/prompts/rawlist:Choices` documentation for more details. |
|
|
style: An :class:`InquirerPyStyle` instance. |
|
|
Refer to :ref:`Style <pages/style:Alternate Syntax>` documentation for more details. |
|
|
vi_mode: Use vim keybinding for the prompt. |
|
|
Refer to :ref:`pages/kb:Keybindings` documentation for more details. |
|
|
default: Set the default value of the prompt. |
|
|
This will be used to determine which choice is highlighted (current selection), |
|
|
The default value should be the value of one of the choices. |
|
|
For :class:`.RawlistPrompt` specifically, default value can also be value between 0-9. |
|
|
Refer to :ref:`pages/dynamic:default` documentation for more details. |
|
|
separator: Separator symbol. Custom symbol that will be used as a separator between the choice index number and the choices. |
|
|
qmark: Question mark symbol. Custom symbol that will be displayed infront of the question before its answered. |
|
|
amark: Answer mark symbol. Custom symbol that will be displayed infront of the question after its answered. |
|
|
pointer: Pointer symbol. Customer symbol that will be used to indicate the current choice selection. |
|
|
instruction: Short instruction to display next to the question. |
|
|
long_instruction: Long instructions to display at the bottom of the prompt. |
|
|
validate: Add validation to user input. |
|
|
The main use case for this prompt would be when `multiselect` is True, you can enforce a min/max selection. |
|
|
Refer to :ref:`pages/validator:Validator` documentation for more details. |
|
|
invalid_message: Error message to display when user input is invalid. |
|
|
Refer to :ref:`pages/validator:Validator` documentation for more details. |
|
|
transformer: A function which performs additional transformation on the value that gets printed to the terminal. |
|
|
Different than `filter` parameter, this is only visual effect and won’t affect the actual value returned by :meth:`~InquirerPy.base.simple.BaseSimplePrompt.execute`. |
|
|
Refer to :ref:`pages/dynamic:transformer` documentation for more details. |
|
|
filter: A function which performs additional transformation on the result. |
|
|
This affects the actual value returned by :meth:`~InquirerPy.base.simple.BaseSimplePrompt.execute`. |
|
|
Refer to :ref:`pages/dynamic:filter` documentation for more details. |
|
|
height: Preferred height of the prompt. |
|
|
Refer to :ref:`pages/height:Height` documentation for more details. |
|
|
max_height: Max height of the prompt. |
|
|
Refer to :ref:`pages/height:Height` documentation for more details. |
|
|
multiselect: Enable multi-selection on choices. |
|
|
You can use `validate` parameter to control min/max selections. |
|
|
Setting to True will also change the result from a single value to a list of values. |
|
|
marker: Marker Symbol. Custom symbol to indicate if a choice is selected. |
|
|
This will take effects when `multiselect` is True. |
|
|
marker_pl: Marker place holder when the choice is not selected. |
|
|
This is empty space by default. |
|
|
border: Create border around the choice window. |
|
|
keybindings: Customise the builtin keybindings. |
|
|
Refer to :ref:`pages/kb:Keybindings` for more details. |
|
|
show_cursor: Display cursor at the end of the prompt. |
|
|
Set to False to hide the cursor. |
|
|
cycle: Return to top item if hit bottom during navigation or vice versa. |
|
|
wrap_lines: Soft wrap question lines when question exceeds the terminal width. |
|
|
raise_keyboard_interrupt: Raise the :class:`KeyboardInterrupt` exception when `ctrl-c` is pressed. If false, the result |
|
|
will be `None` and the question is skiped. |
|
|
mandatory: Indicate if the prompt is mandatory. If True, then the question cannot be skipped. |
|
|
mandatory_message: Error message to show when user attempts to skip mandatory prompt. |
|
|
session_result: Used internally for :ref:`index:Classic Syntax (PyInquirer)`. |
|
|
|
|
|
Examples: |
|
|
>>> from InquirerPy import inquirer |
|
|
>>> result = inquirer.rawlist(message="Select one:", choices=[1, 2, 3]).execute() |
|
|
>>> print(result) |
|
|
1 |
|
|
""" |
|
|
|
|
|
def __init__( |
|
|
self, |
|
|
message: InquirerPyMessage, |
|
|
choices: InquirerPyListChoices, |
|
|
default: InquirerPyDefault = None, |
|
|
separator: str = ") ", |
|
|
style: Optional[InquirerPyStyle] = None, |
|
|
vi_mode: bool = False, |
|
|
qmark: str = "?", |
|
|
amark: str = "?", |
|
|
pointer: str = " ", |
|
|
instruction: str = "", |
|
|
long_instruction: str = "", |
|
|
transformer: Optional[Callable[[Any], Any]] = None, |
|
|
filter: Optional[Callable[[Any], Any]] = None, |
|
|
height: Optional[Union[int, str]] = None, |
|
|
max_height: Optional[Union[int, str]] = None, |
|
|
multiselect: bool = False, |
|
|
marker: str = INQUIRERPY_POINTER_SEQUENCE, |
|
|
marker_pl: str = " ", |
|
|
border: bool = False, |
|
|
validate: Optional[InquirerPyValidate] = None, |
|
|
invalid_message: str = "Invalid input", |
|
|
keybindings: Optional[InquirerPyKeybindings] = None, |
|
|
show_cursor: bool = True, |
|
|
cycle: bool = True, |
|
|
wrap_lines: bool = True, |
|
|
raise_keyboard_interrupt: bool = True, |
|
|
mandatory: bool = True, |
|
|
mandatory_message: str = "Mandatory prompt", |
|
|
session_result: Optional[InquirerPySessionResult] = None, |
|
|
) -> None: |
|
|
self.content_control = InquirerPyRawlistControl( |
|
|
choices=choices, |
|
|
default=default, |
|
|
pointer=pointer, |
|
|
separator=separator, |
|
|
marker=marker, |
|
|
session_result=session_result, |
|
|
multiselect=multiselect, |
|
|
marker_pl=marker_pl, |
|
|
) |
|
|
super().__init__( |
|
|
message=message, |
|
|
choices=choices, |
|
|
style=style, |
|
|
border=border, |
|
|
vi_mode=vi_mode, |
|
|
qmark=qmark, |
|
|
amark=amark, |
|
|
instruction=instruction, |
|
|
long_instruction=long_instruction, |
|
|
transformer=transformer, |
|
|
filter=filter, |
|
|
height=height, |
|
|
max_height=max_height, |
|
|
multiselect=multiselect, |
|
|
validate=validate, |
|
|
invalid_message=invalid_message, |
|
|
keybindings=keybindings, |
|
|
show_cursor=show_cursor, |
|
|
cycle=cycle, |
|
|
wrap_lines=wrap_lines, |
|
|
raise_keyboard_interrupt=raise_keyboard_interrupt, |
|
|
mandatory=mandatory, |
|
|
mandatory_message=mandatory_message, |
|
|
session_result=session_result, |
|
|
) |
|
|
|
|
|
def _on_rendered(self, _) -> None: |
|
|
"""Override this method to apply custom keybindings. |
|
|
|
|
|
Needs to creat these kb in the callback due to `after_render` |
|
|
retrieve the choices asynchronously. |
|
|
|
|
|
Check if fetched choices exceed the limit of 9, raise |
|
|
InvalidArgument exception. |
|
|
""" |
|
|
|
|
|
def keybinding_factory(choice): |
|
|
@self.register_kb(str(choice["display_index"])) |
|
|
def keybinding(_) -> None: |
|
|
self.content_control.selected_choice_index = int(choice["actual_index"]) |
|
|
|
|
|
return keybinding |
|
|
|
|
|
if self.content_control.choice_count >= 10: |
|
|
raise InvalidArgument("rawlist argument choices cannot exceed length of 9") |
|
|
|
|
|
for choice in self.content_control.choices: |
|
|
if not isinstance(choice["value"], Separator): |
|
|
keybinding_factory(choice) |
|
|
|
|
|
def _get_prompt_message(self) -> List[Tuple[str, str]]: |
|
|
"""Return the formatted text to display in the prompt. |
|
|
|
|
|
Overriding this method to allow multiple formatted class to be displayed. |
|
|
""" |
|
|
display_message = super()._get_prompt_message() |
|
|
if not self.status["answered"] and self.content_control.choices: |
|
|
display_message.append( |
|
|
("class:input", str(self.content_control.selection["display_index"])) |
|
|
) |
|
|
return display_message |
|
|
|
