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block_elements.py
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block_elements.py
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import copy
import logging
import re
import warnings
from abc import ABCMeta
from typing import List, Optional, Set, Union, Sequence
from slack_sdk.models import show_unknown_key_warning
from slack_sdk.models.basic_objects import (
JsonObject,
JsonValidator,
EnumValidator,
)
from .basic_components import ButtonStyles
from .basic_components import ConfirmObject
from .basic_components import DispatchActionConfig
from .basic_components import MarkdownTextObject
from .basic_components import Option
from .basic_components import OptionGroup
from .basic_components import PlainTextObject
from .basic_components import TextObject
# -------------------------------------------------
# Block Elements
# -------------------------------------------------
class BlockElement(JsonObject, metaclass=ABCMeta):
"""Block Elements are things that exists inside of your Blocks.
https://api.slack.com/reference/block-kit/block-elements
"""
attributes = {"type"}
logger = logging.getLogger(__name__)
def _subtype_warning(self): # skipcq: PYL-R0201
warnings.warn(
"subtype is deprecated since slackclient 2.6.0, use type instead",
DeprecationWarning,
)
@property
def subtype(self) -> Optional[str]:
return self.type
def __init__(
self,
*,
type: Optional[str] = None, # skipcq: PYL-W0622
subtype: Optional[str] = None,
**others: dict,
):
if subtype:
self._subtype_warning()
self.type = type if type else subtype
show_unknown_key_warning(self, others)
@classmethod
def parse(
cls, block_element: Union[dict, "BlockElement"]
) -> Optional[Union["BlockElement", TextObject]]:
if block_element is None: # skipcq: PYL-R1705
return None
elif isinstance(block_element, dict):
if "type" in block_element:
d = copy.copy(block_element)
t = d.pop("type")
if t == PlainTextObject.type: # skipcq: PYL-R1705
return PlainTextObject(**d)
elif t == MarkdownTextObject.type:
return MarkdownTextObject(**d)
elif t == ImageElement.type:
return ImageElement(**d)
elif t == ButtonElement.type:
return ButtonElement(**d)
elif t == StaticSelectElement.type:
return StaticSelectElement(**d)
elif t == StaticMultiSelectElement.type:
return StaticMultiSelectElement(**d)
elif t == ExternalDataSelectElement.type:
return ExternalDataSelectElement(**d)
elif t == ExternalDataMultiSelectElement.type:
return ExternalDataMultiSelectElement(**d)
elif t == UserSelectElement.type:
return UserSelectElement(**d)
elif t == UserMultiSelectElement.type:
return UserMultiSelectElement(**d)
elif t == ConversationSelectElement.type:
return ConversationSelectElement(**d)
elif t == ConversationMultiSelectElement.type:
return ConversationMultiSelectElement(**d)
elif t == ChannelSelectElement.type:
return ChannelSelectElement(**d)
elif t == ChannelMultiSelectElement.type:
return ChannelMultiSelectElement(**d)
elif t == PlainTextInputElement.type:
return PlainTextInputElement(**d)
elif t == RadioButtonsElement.type:
return RadioButtonsElement(**d)
elif t == CheckboxesElement.type:
return CheckboxesElement(**d)
elif t == OverflowMenuElement.type:
return OverflowMenuElement(**d)
elif t == DatePickerElement.type:
return DatePickerElement(**d)
elif t == TimePickerElement.type:
return TimePickerElement(**d)
else:
cls.logger.warning(
f"Unknown element detected and skipped ({block_element})"
)
return None
else:
cls.logger.warning(
f"Unknown element detected and skipped ({block_element})"
)
return None
elif isinstance(block_element, (TextObject, BlockElement)):
return block_element
else:
cls.logger.warning(
f"Unknown element detected and skipped ({block_element})"
)
return None
@classmethod
def parse_all(
cls, block_elements: Sequence[Union[dict, "BlockElement"]]
) -> List["BlockElement"]:
return [cls.parse(e) for e in block_elements or []]
# -------------------------------------------------
# Interactive Block Elements
# -------------------------------------------------
# This is a base class
class InteractiveElement(BlockElement):
action_id_max_length = 255
@property
def attributes(self) -> Set[str]:
return super().attributes.union({"alt_text", "action_id"})
def __init__(
self,
*,
action_id: Optional[str] = None,
type: Optional[str] = None, # skipcq: PYL-W0622
subtype: Optional[str] = None,
**others: dict,
):
"""An interactive block element.
We generally recommend using the concrete subclasses for better supports of available properties.
"""
if subtype:
self._subtype_warning()
super().__init__(type=type or subtype)
# Note that we don't intentionally have show_unknown_key_warning for the unknown key warnings here.
# It's fine to pass any kwargs to the held dict here although the class does not do any validation.
# show_unknown_key_warning(self, others)
self.action_id = action_id
@JsonValidator(
f"action_id attribute cannot exceed {action_id_max_length} characters"
)
def _validate_action_id_length(self) -> bool:
return (
self.action_id is None or len(self.action_id) <= self.action_id_max_length
)
# This is a base class
class InputInteractiveElement(InteractiveElement, metaclass=ABCMeta):
placeholder_max_length = 150
attributes = {"type", "action_id", "placeholder", "confirm", "focus_on_load"}
@property
def subtype(self) -> Optional[str]:
return self.type
def __init__(
self,
*,
action_id: Optional[str] = None,
placeholder: Optional[Union[str, TextObject]] = None,
type: Optional[str] = None, # skipcq: PYL-W0622
subtype: Optional[str] = None,
confirm: Optional[Union[dict, ConfirmObject]] = None,
focus_on_load: Optional[bool] = None,
**others: dict,
):
"""InteractiveElement that is usable in input blocks
We generally recommend using the concrete subclasses for better supports of available properties.
"""
if subtype:
self._subtype_warning()
super().__init__(action_id=action_id, type=type or subtype)
# Note that we don't intentionally have show_unknown_key_warning for the unknown key warnings here.
# It's fine to pass any kwargs to the held dict here although the class does not do any validation.
# show_unknown_key_warning(self, others)
self.placeholder = TextObject.parse(placeholder)
self.confirm = ConfirmObject.parse(confirm)
self.focus_on_load = focus_on_load
@JsonValidator(
f"placeholder attribute cannot exceed {placeholder_max_length} characters"
)
def _validate_placeholder_length(self) -> bool:
return (
self.placeholder is None
or self.placeholder.text is None
or len(self.placeholder.text) <= self.placeholder_max_length
)
# -------------------------------------------------
# Button
# -------------------------------------------------
class ButtonElement(InteractiveElement):
type = "button"
text_max_length = 75
url_max_length = 3000
value_max_length = 2000
@property
def attributes(self) -> Set[str]:
return super().attributes.union(
{"text", "url", "value", "style", "confirm", "accessibility_label"}
)
def __init__(
self,
*,
text: Union[str, dict, TextObject],
action_id: Optional[str] = None,
url: Optional[str] = None,
value: Optional[str] = None,
style: Optional[str] = None, # primary, danger
confirm: Optional[Union[dict, ConfirmObject]] = None,
accessibility_label: Optional[str] = None,
**others: dict,
):
"""An interactive element that inserts a button. The button can be a trigger for
anything from opening a simple link to starting a complex workflow.
https://api.slack.com/reference/block-kit/block-elements#button
Args:
text (required): A text object that defines the button's text.
Can only be of type: plain_text.
Maximum length for the text in this field is 75 characters.
action_id (required): An identifier for this action.
You can use this when you receive an interaction payload to identify the source of the action.
Should be unique among all other action_ids in the containing block.
Maximum length for this field is 255 characters.
url: A URL to load in the user's browser when the button is clicked.
Maximum length for this field is 3000 characters.
If you're using url, you'll still receive an interaction payload
and will need to send an acknowledgement response.
value: The value to send along with the interaction payload.
Maximum length for this field is 2000 characters.
style: Decorates buttons with alternative visual color schemes. Use this option with restraint.
"primary" gives buttons a green outline and text, ideal for affirmation or confirmation actions.
"primary" should only be used for one button within a set.
"danger" gives buttons a red outline and text, and should be used when the action is destructive.
Use "danger" even more sparingly than "primary".
If you don't include this field, the default button style will be used.
confirm: A confirm object that defines an optional confirmation dialog after the button is clicked.
accessibility_label: A label for longer descriptive text about a button element.
This label will be read out by screen readers instead of the button text object.
Maximum length for this field is 75 characters.
"""
super().__init__(action_id=action_id, type=self.type)
show_unknown_key_warning(self, others)
# NOTE: default_type=PlainTextObject.type here is only for backward-compatibility with version 2.5.0
self.text = TextObject.parse(text, default_type=PlainTextObject.type)
self.url = url
self.value = value
self.style = style
self.confirm = ConfirmObject.parse(confirm)
self.accessibility_label = accessibility_label
@JsonValidator(f"text attribute cannot exceed {text_max_length} characters")
def _validate_text_length(self) -> bool:
return (
self.text is None
or self.text.text is None
or len(self.text.text) <= self.text_max_length
)
@JsonValidator(f"url attribute cannot exceed {url_max_length} characters")
def _validate_url_length(self) -> bool:
return self.url is None or len(self.url) <= self.url_max_length
@JsonValidator(f"value attribute cannot exceed {value_max_length} characters")
def _validate_value_length(self) -> bool:
return self.value is None or len(self.value) <= self.value_max_length
@EnumValidator("style", ButtonStyles)
def _validate_style_valid(self):
return self.style is None or self.style in ButtonStyles
@JsonValidator(
f"accessibility_label attribute cannot exceed {text_max_length} characters"
)
def _validate_accessibility_label_length(self) -> bool:
return (
self.accessibility_label is None
or len(self.accessibility_label) <= self.text_max_length
)
class LinkButtonElement(ButtonElement):
def __init__(
self,
*,
text: Union[str, dict, PlainTextObject],
url: str,
action_id: Optional[str] = None,
style: Optional[str] = None,
**others: dict,
):
"""A simple button that simply opens a given URL. You will still receive an
interaction payload and will need to send an acknowledgement response.
This is a helper class that makes creating links simpler.
https://api.slack.com/reference/block-kit/block-elements#button
Args:
text (required): A text object that defines the button's text.
Can only be of type: plain_text.
Maximum length for the text in this field is 75 characters.
url (required): A URL to load in the user's browser when the button is clicked.
Maximum length for this field is 3000 characters.
If you're using url, you'll still receive an interaction payload
and will need to send an acknowledgement response.
action_id (required): An identifier for this action.
You can use this when you receive an interaction payload to identify the source of the action.
Should be unique among all other action_ids in the containing block.
Maximum length for this field is 255 characters.
style: Decorates buttons with alternative visual color schemes. Use this option with restraint.
"primary" gives buttons a green outline and text, ideal for affirmation or confirmation actions.
"primary" should only be used for one button within a set.
"danger" gives buttons a red outline and text, and should be used when the action is destructive.
Use "danger" even more sparingly than "primary".
If you don't include this field, the default button style will be used.
"""
super().__init__(
# NOTE: value must be always absent
text=text,
url=url,
action_id=action_id,
value=None,
style=style,
)
show_unknown_key_warning(self, others)
# -------------------------------------------------
# Checkboxes
# -------------------------------------------------
class CheckboxesElement(InputInteractiveElement):
type = "checkboxes"
@property
def attributes(self) -> Set[str]:
return super().attributes.union({"options", "initial_options"})
def __init__(
self,
*,
action_id: Optional[str] = None,
options: Optional[Sequence[Union[dict, Option]]] = None,
initial_options: Optional[Sequence[Union[dict, Option]]] = None,
confirm: Optional[Union[dict, ConfirmObject]] = None,
focus_on_load: Optional[bool] = None,
**others: dict,
):
"""A checkbox group that allows a user to choose multiple items from a list of possible options.
https://api.slack.com/reference/block-kit/block-elements#checkboxes
Args:
action_id (required): An identifier for the action triggered when the checkbox group is changed.
You can use this when you receive an interaction payload to identify the source of the action.
Should be unique among all other action_ids in the containing block.
Maximum length for this field is 255 characters.
options (required): An array of option objects. A maximum of 10 options are allowed.
initial_options: An array of option objects that exactly matches one or more of the options.
These options will be selected when the checkbox group initially loads.
confirm: A confirm object that defines an optional confirmation dialog that appears
after clicking one of the checkboxes in this element.
focus_on_load: Indicates whether the element will be set to auto focus within the view object.
Only one element can be set to true. Defaults to false.
"""
super().__init__(
type=self.type,
action_id=action_id,
confirm=ConfirmObject.parse(confirm),
focus_on_load=focus_on_load,
)
show_unknown_key_warning(self, others)
self.options = Option.parse_all(options)
self.initial_options = Option.parse_all(initial_options)
# -------------------------------------------------
# DatePicker
# -------------------------------------------------
class DatePickerElement(InputInteractiveElement):
type = "datepicker"
@property
def attributes(self) -> Set[str]:
return super().attributes.union({"initial_date"})
def __init__(
self,
*,
action_id: Optional[str] = None,
placeholder: Optional[Union[str, dict, TextObject]] = None,
initial_date: Optional[str] = None,
confirm: Optional[Union[dict, ConfirmObject]] = None,
focus_on_load: Optional[bool] = None,
**others: dict,
):
"""
An element which lets users easily select a date from a calendar style UI.
Date picker elements can be used inside of SectionBlocks and ActionsBlocks.
https://api.slack.com/reference/block-kit/block-elements#datepicker
Args:
action_id (required): An identifier for the action triggered when a menu option is selected.
You can use this when you receive an interaction payload to identify the source of the action.
Should be unique among all other action_ids in the containing block.
Maximum length for this field is 255 characters.
placeholder: A plain_text only text object that defines the placeholder text shown on the datepicker.
Maximum length for the text in this field is 150 characters.
initial_date: The initial date that is selected when the element is loaded.
This should be in the format YYYY-MM-DD.
confirm: A confirm object that defines an optional confirmation dialog
that appears after a date is selected.
focus_on_load: Indicates whether the element will be set to auto focus within the view object.
Only one element can be set to true. Defaults to false.
"""
super().__init__(
type=self.type,
action_id=action_id,
placeholder=TextObject.parse(placeholder, PlainTextObject.type),
confirm=ConfirmObject.parse(confirm),
focus_on_load=focus_on_load,
)
show_unknown_key_warning(self, others)
self.initial_date = initial_date
@JsonValidator("initial_date attribute must be in format 'YYYY-MM-DD'")
def _validate_initial_date_valid(self) -> bool:
return (
self.initial_date is None
or re.match(
r"\d{4}-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])", self.initial_date
)
is not None
)
# -------------------------------------------------
# TimePicker
# -------------------------------------------------
class TimePickerElement(InputInteractiveElement):
type = "timepicker"
@property
def attributes(self) -> Set[str]:
return super().attributes.union({"initial_time"})
def __init__(
self,
*,
action_id: Optional[str] = None,
placeholder: Optional[Union[str, dict, TextObject]] = None,
initial_time: Optional[str] = None,
confirm: Optional[Union[dict, ConfirmObject]] = None,
focus_on_load: Optional[bool] = None,
**others: dict,
):
"""
An element which allows selection of a time of day.
On desktop clients, this time picker will take the form of a dropdown list
with free-text entry for precise choices.
On mobile clients, the time picker will use native time picker UIs.
https://api.slack.com/reference/block-kit/block-elements#timepicker
Args:
action_id (required): An identifier for the action triggered when a time is selected.
You can use this when you receive an interaction payload to identify the source of the action.
Should be unique among all other action_ids in the containing block.
Maximum length for this field is 255 characters.
placeholder: A plain_text only text object that defines the placeholder text shown on the timepicker.
Maximum length for the text in this field is 150 characters.
initial_time: The initial time that is selected when the element is loaded.
This should be in the format HH:mm, where HH is the 24-hour format of an hour (00 to 23)
and mm is minutes with leading zeros (00 to 59), for example 22:25 for 10:25pm.
confirm: A confirm object that defines an optional confirmation dialog
that appears after a time is selected.
focus_on_load: Indicates whether the element will be set to auto focus within the view object.
Only one element can be set to true. Defaults to false.
"""
super().__init__(
type=self.type,
action_id=action_id,
placeholder=TextObject.parse(placeholder, PlainTextObject.type),
confirm=ConfirmObject.parse(confirm),
focus_on_load=focus_on_load,
)
show_unknown_key_warning(self, others)
self.initial_time = initial_time
@JsonValidator("initial_time attribute must be in format 'HH:mm'")
def _validate_initial_time_valid(self) -> bool:
return (
self.initial_time is None
or re.match(r"([0-1][0-9]|2[0-3]):([0-5][0-9])", self.initial_time)
is not None
)
# -------------------------------------------------
# Image
# -------------------------------------------------
class ImageElement(BlockElement):
type = "image"
image_url_max_length = 3000
alt_text_max_length = 2000
@property
def attributes(self) -> Set[str]:
return super().attributes.union({"alt_text", "image_url"})
def __init__(
self,
*,
image_url: Optional[str] = None,
alt_text: Optional[str] = None,
**others: dict,
):
"""An element to insert an image - this element can be used in section and
context blocks only. If you want a block with only an image in it,
you're looking for the image block.
https://api.slack.com/reference/block-kit/block-elements#image
Args:
image_url (required): The URL of the image to be displayed.
alt_text (required): A plain-text summary of the image. This should not contain any markup.
"""
super().__init__(type=self.type)
show_unknown_key_warning(self, others)
self.image_url = image_url
self.alt_text = alt_text
@JsonValidator(
f"image_url attribute cannot exceed {image_url_max_length} characters"
)
def _validate_image_url_length(self) -> bool:
return len(self.image_url) <= self.image_url_max_length
@JsonValidator(f"alt_text attribute cannot exceed {alt_text_max_length} characters")
def _validate_alt_text_length(self) -> bool:
return len(self.alt_text) <= self.alt_text_max_length
# -------------------------------------------------
# Static Select
# -------------------------------------------------
class StaticSelectElement(InputInteractiveElement):
type = "static_select"
options_max_length = 100
option_groups_max_length = 100
@property
def attributes(self) -> Set[str]:
return super().attributes.union({"options", "option_groups", "initial_option"})
def __init__(
self,
*,
placeholder: Optional[Union[str, dict, TextObject]] = None,
action_id: Optional[str] = None,
options: Optional[Sequence[Union[dict, Option]]] = None,
option_groups: Optional[Sequence[Union[dict, OptionGroup]]] = None,
initial_option: Optional[Union[dict, Option]] = None,
confirm: Optional[Union[dict, ConfirmObject]] = None,
focus_on_load: Optional[bool] = None,
**others: dict,
):
"""This is the simplest form of select menu, with a static list of options passed in when defining the element.
https://api.slack.com/reference/block-kit/block-elements#static_select
Args:
placeholder (required): A plain_text only text object that defines the placeholder text shown on the menu.
Maximum length for the text in this field is 150 characters.
action_id (required): An identifier for the action triggered when a menu option is selected.
You can use this when you receive an interaction payload to identify the source of the action.
Should be unique among all other action_ids in the containing block.
Maximum length for this field is 255 characters.
options (either options or option_groups is required): An array of option objects.
Maximum number of options is 100.
If option_groups is specified, this field should not be.
option_groups (either options or option_groups is required): An array of option group objects.
Maximum number of option groups is 100.
If options is specified, this field should not be.
initial_option: A single option that exactly matches one of the options or option_groups.
This option will be selected when the menu initially loads.
confirm: A confirm object that defines an optional confirmation dialog
that appears after a menu item is selected.
focus_on_load: Indicates whether the element will be set to auto focus within the view object.
Only one element can be set to true. Defaults to false.
"""
super().__init__(
type=self.type,
action_id=action_id,
placeholder=TextObject.parse(placeholder, PlainTextObject.type),
confirm=ConfirmObject.parse(confirm),
focus_on_load=focus_on_load,
)
show_unknown_key_warning(self, others)
self.options = options
self.option_groups = option_groups
self.initial_option = initial_option
@JsonValidator(f"options attribute cannot exceed {options_max_length} elements")
def _validate_options_length(self) -> bool:
return self.options is None or len(self.options) <= self.options_max_length
@JsonValidator(
f"option_groups attribute cannot exceed {option_groups_max_length} elements"
)
def _validate_option_groups_length(self) -> bool:
return (
self.option_groups is None
or len(self.option_groups) <= self.option_groups_max_length
)
@JsonValidator("options and option_groups cannot both be specified")
def _validate_options_and_option_groups_both_specified(self) -> bool:
return not (self.options is not None and self.option_groups is not None)
@JsonValidator("options or option_groups must be specified")
def _validate_neither_options_or_option_groups_is_specified(self) -> bool:
return self.options is not None or self.option_groups is not None
class StaticMultiSelectElement(InputInteractiveElement):
type = "multi_static_select"
options_max_length = 100
option_groups_max_length = 100
@property
def attributes(self) -> Set[str]:
return super().attributes.union(
{"options", "option_groups", "initial_options", "max_selected_items"}
)
def __init__(
self,
*,
placeholder: Optional[Union[str, dict, TextObject]] = None,
action_id: Optional[str] = None,
options: Optional[Sequence[Option]] = None,
option_groups: Optional[Sequence[OptionGroup]] = None,
initial_options: Optional[Sequence[Option]] = None,
confirm: Optional[Union[dict, ConfirmObject]] = None,
max_selected_items: Optional[int] = None,
focus_on_load: Optional[bool] = None,
**others: dict,
):
"""
This is the simplest form of select menu, with a static list of options passed in when defining the element.
https://api.slack.com/reference/block-kit/block-elements#static_multi_select
Args:
placeholder (required): A plain_text only text object that defines the placeholder text shown on the menu.
Maximum length for the text in this field is 150 characters.
action_id (required): An identifier for the action triggered when a menu option is selected.
You can use this when you receive an interaction payload to identify the source of the action.
Should be unique among all other action_ids in the containing block.
Maximum length for this field is 255 characters.
options (either options or option_groups is required): An array of option objects.
Maximum number of options is 100.
If option_groups is specified, this field should not be.
option_groups (either options or option_groups is required): An array of option group objects.
Maximum number of option groups is 100.
If options is specified, this field should not be.
initial_options: An array of option objects that exactly match one or more of the options
within options or option_groups. These options will be selected when the menu initially loads.
confirm: A confirm object that defines an optional confirmation dialog
that appears before the multi-select choices are submitted.
max_selected_items: Specifies the maximum number of items that can be selected in the menu.
Minimum number is 1.
focus_on_load: Indicates whether the element will be set to auto focus within the view object.
Only one element can be set to true. Defaults to false.
"""
super().__init__(
type=self.type,
action_id=action_id,
placeholder=TextObject.parse(placeholder, PlainTextObject.type),
confirm=ConfirmObject.parse(confirm),
focus_on_load=focus_on_load,
)
show_unknown_key_warning(self, others)
self.options = Option.parse_all(options)
self.option_groups = OptionGroup.parse_all(option_groups)
self.initial_options = Option.parse_all(initial_options)
self.max_selected_items = max_selected_items
@JsonValidator(f"options attribute cannot exceed {options_max_length} elements")
def _validate_options_length(self) -> bool:
return self.options is None or len(self.options) <= self.options_max_length
@JsonValidator(
f"option_groups attribute cannot exceed {option_groups_max_length} elements"
)
def _validate_option_groups_length(self) -> bool:
return (
self.option_groups is None
or len(self.option_groups) <= self.option_groups_max_length
)
@JsonValidator("options and option_groups cannot both be specified")
def _validate_options_and_option_groups_both_specified(self) -> bool:
return self.options is None or self.option_groups is None
@JsonValidator("options or option_groups must be specified")
def _validate_neither_options_or_option_groups_is_specified(self) -> bool:
return self.options is not None or self.option_groups is not None
# SelectElement will be deprecated in version 3, use StaticSelectElement instead
class SelectElement(InputInteractiveElement):
type = "static_select"
options_max_length = 100
option_groups_max_length = 100
@property
def attributes(self) -> Set[str]:
return super().attributes.union({"options", "option_groups", "initial_option"})
def __init__(
self,
*,
action_id: Optional[str] = None,
placeholder: Optional[str] = None,
options: Optional[Sequence[Option]] = None,
option_groups: Optional[Sequence[OptionGroup]] = None,
initial_option: Optional[Option] = None,
confirm: Optional[Union[dict, ConfirmObject]] = None,
focus_on_load: Optional[bool] = None,
**others: dict,
):
"""This is the simplest form of select menu, with a static list of options passed in when defining the element.
https://api.slack.com/reference/block-kit/block-elements#static_select
Args:
action_id (required): An identifier for the action triggered when a menu option is selected.
You can use this when you receive an interaction payload to identify the source of the action.
Should be unique among all other action_ids in the containing block.
Maximum length for this field is 255 characters.
placeholder (required): A plain_text only text object that defines the placeholder text shown on the menu.
Maximum length for the text in this field is 150 characters.
options (either options or option_groups is required): An array of option objects.
Maximum number of options is 100.
If option_groups is specified, this field should not be.
option_groups (either options or option_groups is required): An array of option group objects.
Maximum number of option groups is 100.
If options is specified, this field should not be.
initial_option: A single option that exactly matches one of the options or option_groups.
This option will be selected when the menu initially loads.
confirm: A confirm object that defines an optional confirmation dialog
that appears after a menu item is selected.
focus_on_load: Indicates whether the element will be set to auto focus within the view object.
Only one element can be set to true. Defaults to false.
"""
super().__init__(
type=self.type,
action_id=action_id,
placeholder=TextObject.parse(placeholder, PlainTextObject.type),
confirm=ConfirmObject.parse(confirm),
focus_on_load=focus_on_load,
)
show_unknown_key_warning(self, others)
self.options = options
self.option_groups = option_groups
self.initial_option = initial_option
@JsonValidator(f"options attribute cannot exceed {options_max_length} elements")
def _validate_options_length(self) -> bool:
return self.options is None or len(self.options) <= self.options_max_length
@JsonValidator(
f"option_groups attribute cannot exceed {option_groups_max_length} elements"
)
def _validate_option_groups_length(self) -> bool:
return (
self.option_groups is None
or len(self.option_groups) <= self.option_groups_max_length
)
@JsonValidator("options and option_groups cannot both be specified")
def _validate_options_and_option_groups_both_specified(self) -> bool:
return not (self.options is not None and self.option_groups is not None)
@JsonValidator("options or option_groups must be specified")
def _validate_neither_options_or_option_groups_is_specified(self) -> bool:
return self.options is not None or self.option_groups is not None
# -------------------------------------------------
# External Data Source Select
# -------------------------------------------------
class ExternalDataSelectElement(InputInteractiveElement):
type = "external_select"
@property
def attributes(self) -> Set[str]:
return super().attributes.union({"min_query_length", "initial_option"})
def __init__(
self,
*,
action_id: Optional[str] = None,
placeholder: Optional[Union[str, TextObject]] = None,
initial_option: Union[Optional[Option], Optional[OptionGroup]] = None,
min_query_length: Optional[int] = None,
confirm: Optional[Union[dict, ConfirmObject]] = None,
focus_on_load: Optional[bool] = None,
**others: dict,
):
"""
This select menu will load its options from an external data source, allowing
for a dynamic list of options.
https://api.slack.com/reference/block-kit/block-elements#external_select
Args:
action_id (required): An identifier for the action triggered when a menu option is selected.
You can use this when you receive an interaction payload to identify the source of the action.
Should be unique among all other action_ids in the containing block.
Maximum length for this field is 255 characters.
placeholder (required): A plain_text only text object that defines the placeholder text shown on the menu.
Maximum length for the text in this field is 150 characters.
initial_option: A single option that exactly matches one of the options
within the options or option_groups loaded from the external data source.
This option will be selected when the menu initially loads.
min_query_length: When the typeahead field is used, a request will be sent on every character change.
If you prefer fewer requests or more fully ideated queries,
use the min_query_length attribute to tell Slack
the fewest number of typed characters required before dispatch.
The default value is 3.
confirm: A confirm object that defines an optional confirmation dialog
that appears after a menu item is selected.
focus_on_load: Indicates whether the element will be set to auto focus within the view object.
Only one element can be set to true. Defaults to false.
"""
super().__init__(
type=self.type,
action_id=action_id,
placeholder=TextObject.parse(placeholder, PlainTextObject.type),
confirm=ConfirmObject.parse(confirm),
focus_on_load=focus_on_load,
)
show_unknown_key_warning(self, others)
self.min_query_length = min_query_length
self.initial_option = initial_option
class ExternalDataMultiSelectElement(InputInteractiveElement):
type = "multi_external_select"
@property
def attributes(self) -> Set[str]:
return super().attributes.union(
{"min_query_length", "initial_options", "max_selected_items"}
)
def __init__(
self,
*,
placeholder: Optional[Union[str, dict, TextObject]] = None,
action_id: Optional[str] = None,
min_query_length: Optional[int] = None,
initial_options: Optional[Sequence[Union[dict, Option]]] = None,
confirm: Optional[Union[dict, ConfirmObject]] = None,
max_selected_items: Optional[int] = None,
focus_on_load: Optional[bool] = None,
**others: dict,
):
"""
This select menu will load its options from an external data source, allowing
for a dynamic list of options.
https://api.slack.com/reference/block-kit/block-elements#external_multi_select
Args:
placeholder (required): A plain_text only text object that defines the placeholder text shown on the menu.
Maximum length for the text in this field is 150 characters.
action_id (required): An identifier for the action triggered when a menu option is selected.
You can use this when you receive an interaction payload to identify the source of the action.
Should be unique among all other action_ids in the containing block.
Maximum length for this field is 255 characters.
min_query_length: When the typeahead field is used, a request will be sent on every character change.
If you prefer fewer requests or more fully ideated queries,
use the min_query_length attribute to tell Slack
the fewest number of typed characters required before dispatch.
The default value is 3
initial_options: An array of option objects that exactly match one or more of the options
within options or option_groups. These options will be selected when the menu initially loads.
confirm: A confirm object that defines an optional confirmation dialog that appears
before the multi-select choices are submitted.
max_selected_items: Specifies the maximum number of items that can be selected in the menu.
Minimum number is 1.
focus_on_load: Indicates whether the element will be set to auto focus within the view object.
Only one element can be set to true. Defaults to false.
"""
super().__init__(
type=self.type,
action_id=action_id,
placeholder=TextObject.parse(placeholder, PlainTextObject.type),
confirm=ConfirmObject.parse(confirm),
focus_on_load=focus_on_load,
)
show_unknown_key_warning(self, others)
self.min_query_length = min_query_length
self.initial_options = Option.parse_all(initial_options)
self.max_selected_items = max_selected_items
# -------------------------------------------------
# Users Select
# -------------------------------------------------
class UserSelectElement(InputInteractiveElement):
type = "users_select"
@property
def attributes(self) -> Set[str]:
return super().attributes.union({"initial_user"})
def __init__(
self,
*,
placeholder: Optional[Union[str, dict, TextObject]] = None,
action_id: Optional[str] = None,
initial_user: Optional[str] = None,
confirm: Optional[Union[dict, ConfirmObject]] = None,
focus_on_load: Optional[bool] = None,
**others: dict,
):
"""
This select menu will populate its options with a list of Slack users visible to
the current user in the active workspace.
https://api.slack.com/reference/block-kit/block-elements#users_select
Args:
placeholder (required): A plain_text only text object that defines the placeholder text shown on the menu.
Maximum length for the text in this field is 150 characters.
action_id (required): An identifier for the action triggered when a menu option is selected.
You can use this when you receive an interaction payload to identify the source of the action.
Should be unique among all other action_ids in the containing block.
Maximum length for this field is 255 characters.
initial_user: The user ID of any valid user to be pre-selected when the menu loads.
confirm: A confirm object that defines an optional confirmation dialog