565 lines
16 KiB
Python
565 lines
16 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
The MIT License (MIT)
|
|
|
|
Copyright (c) 2015-2019 Rapptz
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a
|
|
copy of this software and associated documentation files (the "Software"),
|
|
to deal in the Software without restriction, including without limitation
|
|
the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
and/or sell copies of the Software, and to permit persons to whom the
|
|
Software is furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
DEALINGS IN THE SOFTWARE.
|
|
"""
|
|
|
|
import datetime
|
|
|
|
from . import utils
|
|
from .colour import Colour
|
|
|
|
class _EmptyEmbed:
|
|
def __bool__(self):
|
|
return False
|
|
|
|
def __repr__(self):
|
|
return 'Embed.Empty'
|
|
|
|
def __len__(self):
|
|
return 0
|
|
|
|
EmptyEmbed = _EmptyEmbed()
|
|
|
|
class EmbedProxy:
|
|
def __init__(self, layer):
|
|
self.__dict__.update(layer)
|
|
|
|
def __len__(self):
|
|
return len(self.__dict__)
|
|
|
|
def __repr__(self):
|
|
return 'EmbedProxy(%s)' % ', '.join(('%s=%r' % (k, v) for k, v in self.__dict__.items() if not k.startswith('_')))
|
|
|
|
def __getattr__(self, attr):
|
|
return EmptyEmbed
|
|
|
|
class Embed:
|
|
"""Represents a Discord embed.
|
|
|
|
.. container:: operations
|
|
|
|
.. describe:: len(x)
|
|
|
|
Returns the total size of the embed.
|
|
Useful for checking if it's within the 6000 character limit.
|
|
|
|
Certain properties return an ``EmbedProxy``, a type
|
|
that acts similar to a regular :class:`dict` except using dotted access,
|
|
e.g. ``embed.author.icon_url``. If the attribute
|
|
is invalid or empty, then a special sentinel value is returned,
|
|
:attr:`Embed.Empty`.
|
|
|
|
For ease of use, all parameters that expect a :class:`str` are implicitly
|
|
casted to :class:`str` for you.
|
|
|
|
Attributes
|
|
-----------
|
|
title: :class:`str`
|
|
The title of the embed.
|
|
This can be set during initialisation.
|
|
type: :class:`str`
|
|
The type of embed. Usually "rich".
|
|
This can be set during initialisation.
|
|
description: :class:`str`
|
|
The description of the embed.
|
|
This can be set during initialisation.
|
|
url: :class:`str`
|
|
The URL of the embed.
|
|
This can be set during initialisation.
|
|
timestamp: :class:`datetime.datetime`
|
|
The timestamp of the embed content. This could be a naive or aware datetime.
|
|
colour: Union[:class:`Colour`, :class:`int`]
|
|
The colour code of the embed. Aliased to ``color`` as well.
|
|
This can be set during initialisation.
|
|
Empty
|
|
A special sentinel value used by ``EmbedProxy`` and this class
|
|
to denote that the value or attribute is empty.
|
|
"""
|
|
|
|
__slots__ = ('title', 'url', 'type', '_timestamp', '_colour', '_footer',
|
|
'_image', '_thumbnail', '_video', '_provider', '_author',
|
|
'_fields', 'description')
|
|
|
|
Empty = EmptyEmbed
|
|
|
|
def __init__(self, **kwargs):
|
|
# swap the colour/color aliases
|
|
try:
|
|
colour = kwargs['colour']
|
|
except KeyError:
|
|
colour = kwargs.get('color', EmptyEmbed)
|
|
|
|
self.colour = colour
|
|
self.title = kwargs.get('title', EmptyEmbed)
|
|
self.type = kwargs.get('type', 'rich')
|
|
self.url = kwargs.get('url', EmptyEmbed)
|
|
self.description = kwargs.get('description', EmptyEmbed)
|
|
|
|
try:
|
|
timestamp = kwargs['timestamp']
|
|
except KeyError:
|
|
pass
|
|
else:
|
|
self.timestamp = timestamp
|
|
|
|
@classmethod
|
|
def from_dict(cls, data):
|
|
"""Converts a :class:`dict` to a :class:`Embed` provided it is in the
|
|
format that Discord expects it to be in.
|
|
|
|
You can find out about this format in the `official Discord documentation`__.
|
|
|
|
.. _DiscordDocs: https://discordapp.com/developers/docs/resources/channel#embed-object
|
|
|
|
__ DiscordDocs_
|
|
|
|
Parameters
|
|
-----------
|
|
data: :class:`dict`
|
|
The dictionary to convert into an embed.
|
|
"""
|
|
# we are bypassing __init__ here since it doesn't apply here
|
|
self = cls.__new__(cls)
|
|
|
|
# fill in the basic fields
|
|
|
|
self.title = data.get('title', EmptyEmbed)
|
|
self.type = data.get('type', EmptyEmbed)
|
|
self.description = data.get('description', EmptyEmbed)
|
|
self.url = data.get('url', EmptyEmbed)
|
|
|
|
# try to fill in the more rich fields
|
|
|
|
try:
|
|
self._colour = Colour(value=data['color'])
|
|
except KeyError:
|
|
pass
|
|
|
|
try:
|
|
self._timestamp = utils.parse_time(data['timestamp'])
|
|
except KeyError:
|
|
pass
|
|
|
|
for attr in ('thumbnail', 'video', 'provider', 'author', 'fields', 'image', 'footer'):
|
|
try:
|
|
value = data[attr]
|
|
except KeyError:
|
|
continue
|
|
else:
|
|
setattr(self, '_' + attr, value)
|
|
|
|
return self
|
|
|
|
def copy(self):
|
|
"""Returns a shallow copy of the embed."""
|
|
return Embed.from_dict(self.to_dict())
|
|
|
|
def __len__(self):
|
|
total = len(self.title) + len(self.description)
|
|
for field in getattr(self, '_fields', []):
|
|
total += len(field['name']) + len(field['value'])
|
|
|
|
try:
|
|
footer = self._footer
|
|
except AttributeError:
|
|
pass
|
|
else:
|
|
total += len(footer['text'])
|
|
|
|
try:
|
|
author = self._author
|
|
except AttributeError:
|
|
pass
|
|
else:
|
|
total += len(author['name'])
|
|
|
|
return total
|
|
|
|
@property
|
|
def colour(self):
|
|
return getattr(self, '_colour', EmptyEmbed)
|
|
|
|
@colour.setter
|
|
def colour(self, value):
|
|
if isinstance(value, (Colour, _EmptyEmbed)):
|
|
self._colour = value
|
|
elif isinstance(value, int):
|
|
self._colour = Colour(value=value)
|
|
else:
|
|
raise TypeError('Expected discord.Colour, int, or Embed.Empty but received %s instead.' % value.__class__.__name__)
|
|
|
|
color = colour
|
|
|
|
@property
|
|
def timestamp(self):
|
|
return getattr(self, '_timestamp', EmptyEmbed)
|
|
|
|
@timestamp.setter
|
|
def timestamp(self, value):
|
|
if isinstance(value, (datetime.datetime, _EmptyEmbed)):
|
|
self._timestamp = value
|
|
else:
|
|
raise TypeError("Expected datetime.datetime or Embed.Empty received %s instead" % value.__class__.__name__)
|
|
|
|
@property
|
|
def footer(self):
|
|
"""Returns an ``EmbedProxy`` denoting the footer contents.
|
|
|
|
See :meth:`set_footer` for possible values you can access.
|
|
|
|
If the attribute has no value then :attr:`Empty` is returned.
|
|
"""
|
|
return EmbedProxy(getattr(self, '_footer', {}))
|
|
|
|
def set_footer(self, *, text=EmptyEmbed, icon_url=EmptyEmbed):
|
|
"""Sets the footer for the embed content.
|
|
|
|
This function returns the class instance to allow for fluent-style
|
|
chaining.
|
|
|
|
Parameters
|
|
-----------
|
|
text: :class:`str`
|
|
The footer text.
|
|
icon_url: :class:`str`
|
|
The URL of the footer icon. Only HTTP(S) is supported.
|
|
"""
|
|
|
|
self._footer = {}
|
|
if text is not EmptyEmbed:
|
|
self._footer['text'] = str(text)
|
|
|
|
if icon_url is not EmptyEmbed:
|
|
self._footer['icon_url'] = str(icon_url)
|
|
|
|
return self
|
|
|
|
@property
|
|
def image(self):
|
|
"""Returns an ``EmbedProxy`` denoting the image contents.
|
|
|
|
Possible attributes you can access are:
|
|
|
|
- ``url``
|
|
- ``proxy_url``
|
|
- ``width``
|
|
- ``height``
|
|
|
|
If the attribute has no value then :attr:`Empty` is returned.
|
|
"""
|
|
return EmbedProxy(getattr(self, '_image', {}))
|
|
|
|
def set_image(self, *, url):
|
|
"""Sets the image for the embed content.
|
|
|
|
This function returns the class instance to allow for fluent-style
|
|
chaining.
|
|
|
|
Parameters
|
|
-----------
|
|
url: :class:`str`
|
|
The source URL for the image. Only HTTP(S) is supported.
|
|
"""
|
|
|
|
self._image = {
|
|
'url': str(url)
|
|
}
|
|
|
|
return self
|
|
|
|
@property
|
|
def thumbnail(self):
|
|
"""Returns an ``EmbedProxy`` denoting the thumbnail contents.
|
|
|
|
Possible attributes you can access are:
|
|
|
|
- ``url``
|
|
- ``proxy_url``
|
|
- ``width``
|
|
- ``height``
|
|
|
|
If the attribute has no value then :attr:`Empty` is returned.
|
|
"""
|
|
return EmbedProxy(getattr(self, '_thumbnail', {}))
|
|
|
|
def set_thumbnail(self, *, url):
|
|
"""Sets the thumbnail for the embed content.
|
|
|
|
This function returns the class instance to allow for fluent-style
|
|
chaining.
|
|
|
|
Parameters
|
|
-----------
|
|
url: :class:`str`
|
|
The source URL for the thumbnail. Only HTTP(S) is supported.
|
|
"""
|
|
|
|
self._thumbnail = {
|
|
'url': str(url)
|
|
}
|
|
|
|
return self
|
|
|
|
@property
|
|
def video(self):
|
|
"""Returns an ``EmbedProxy`` denoting the video contents.
|
|
|
|
Possible attributes include:
|
|
|
|
- ``url`` for the video URL.
|
|
- ``height`` for the video height.
|
|
- ``width`` for the video width.
|
|
|
|
If the attribute has no value then :attr:`Empty` is returned.
|
|
"""
|
|
return EmbedProxy(getattr(self, '_video', {}))
|
|
|
|
@property
|
|
def provider(self):
|
|
"""Returns an ``EmbedProxy`` denoting the provider contents.
|
|
|
|
The only attributes that might be accessed are ``name`` and ``url``.
|
|
|
|
If the attribute has no value then :attr:`Empty` is returned.
|
|
"""
|
|
return EmbedProxy(getattr(self, '_provider', {}))
|
|
|
|
@property
|
|
def author(self):
|
|
"""Returns an ``EmbedProxy`` denoting the author contents.
|
|
|
|
See :meth:`set_author` for possible values you can access.
|
|
|
|
If the attribute has no value then :attr:`Empty` is returned.
|
|
"""
|
|
return EmbedProxy(getattr(self, '_author', {}))
|
|
|
|
def set_author(self, *, name, url=EmptyEmbed, icon_url=EmptyEmbed):
|
|
"""Sets the author for the embed content.
|
|
|
|
This function returns the class instance to allow for fluent-style
|
|
chaining.
|
|
|
|
Parameters
|
|
-----------
|
|
name: :class:`str`
|
|
The name of the author.
|
|
url: :class:`str`
|
|
The URL for the author.
|
|
icon_url: :class:`str`
|
|
The URL of the author icon. Only HTTP(S) is supported.
|
|
"""
|
|
|
|
self._author = {
|
|
'name': str(name)
|
|
}
|
|
|
|
if url is not EmptyEmbed:
|
|
self._author['url'] = str(url)
|
|
|
|
if icon_url is not EmptyEmbed:
|
|
self._author['icon_url'] = str(icon_url)
|
|
|
|
return self
|
|
|
|
@property
|
|
def fields(self):
|
|
"""Returns a :class:`list` of ``EmbedProxy`` denoting the field contents.
|
|
|
|
See :meth:`add_field` for possible values you can access.
|
|
|
|
If the attribute has no value then :attr:`Empty` is returned.
|
|
"""
|
|
return [EmbedProxy(d) for d in getattr(self, '_fields', [])]
|
|
|
|
def add_field(self, *, name, value, inline=True):
|
|
"""Adds a field to the embed object.
|
|
|
|
This function returns the class instance to allow for fluent-style
|
|
chaining.
|
|
|
|
Parameters
|
|
-----------
|
|
name: :class:`str`
|
|
The name of the field.
|
|
value: :class:`str`
|
|
The value of the field.
|
|
inline: :class:`bool`
|
|
Whether the field should be displayed inline.
|
|
"""
|
|
|
|
field = {
|
|
'inline': inline,
|
|
'name': str(name),
|
|
'value': str(value)
|
|
}
|
|
|
|
try:
|
|
self._fields.append(field)
|
|
except AttributeError:
|
|
self._fields = [field]
|
|
|
|
return self
|
|
|
|
def insert_field_at(self, index, *, name, value, inline=True):
|
|
"""Inserts a field before a specified index to the embed.
|
|
|
|
This function returns the class instance to allow for fluent-style
|
|
chaining.
|
|
|
|
.. versionadded:: 1.2.0
|
|
|
|
Parameters
|
|
-----------
|
|
index: :class:`int`
|
|
The index of where to insert the field.
|
|
name: :class:`str`
|
|
The name of the field.
|
|
value: :class:`str`
|
|
The value of the field.
|
|
inline: :class:`bool`
|
|
Whether the field should be displayed inline.
|
|
"""
|
|
|
|
field = {
|
|
'inline': inline,
|
|
'name': str(name),
|
|
'value': str(value)
|
|
}
|
|
|
|
try:
|
|
self._fields.insert(index, field)
|
|
except AttributeError:
|
|
self._fields = [field]
|
|
|
|
return self
|
|
|
|
def clear_fields(self):
|
|
"""Removes all fields from this embed."""
|
|
try:
|
|
self._fields.clear()
|
|
except AttributeError:
|
|
self._fields = []
|
|
|
|
def remove_field(self, index):
|
|
"""Removes a field at a specified index.
|
|
|
|
If the index is invalid or out of bounds then the error is
|
|
silently swallowed.
|
|
|
|
.. note::
|
|
|
|
When deleting a field by index, the index of the other fields
|
|
shift to fill the gap just like a regular list.
|
|
|
|
Parameters
|
|
-----------
|
|
index: :class:`int`
|
|
The index of the field to remove.
|
|
"""
|
|
try:
|
|
del self._fields[index]
|
|
except (AttributeError, IndexError):
|
|
pass
|
|
|
|
def set_field_at(self, index, *, name, value, inline=True):
|
|
"""Modifies a field to the embed object.
|
|
|
|
The index must point to a valid pre-existing field.
|
|
|
|
This function returns the class instance to allow for fluent-style
|
|
chaining.
|
|
|
|
Parameters
|
|
-----------
|
|
index: :class:`int`
|
|
The index of the field to modify.
|
|
name: :class:`str`
|
|
The name of the field.
|
|
value: :class:`str`
|
|
The value of the field.
|
|
inline: :class:`bool`
|
|
Whether the field should be displayed inline.
|
|
|
|
Raises
|
|
-------
|
|
IndexError
|
|
An invalid index was provided.
|
|
"""
|
|
|
|
try:
|
|
field = self._fields[index]
|
|
except (TypeError, IndexError, AttributeError):
|
|
raise IndexError('field index out of range')
|
|
|
|
field['name'] = str(name)
|
|
field['value'] = str(value)
|
|
field['inline'] = inline
|
|
return self
|
|
|
|
def to_dict(self):
|
|
"""Converts this embed object into a dict."""
|
|
|
|
# add in the raw data into the dict
|
|
result = {
|
|
key[1:]: getattr(self, key)
|
|
for key in self.__slots__
|
|
if key[0] == '_' and hasattr(self, key)
|
|
}
|
|
|
|
# deal with basic convenience wrappers
|
|
|
|
try:
|
|
colour = result.pop('colour')
|
|
except KeyError:
|
|
pass
|
|
else:
|
|
if colour:
|
|
result['color'] = colour.value
|
|
|
|
try:
|
|
timestamp = result.pop('timestamp')
|
|
except KeyError:
|
|
pass
|
|
else:
|
|
if timestamp:
|
|
if timestamp.tzinfo:
|
|
result['timestamp'] = timestamp.astimezone(tz=datetime.timezone.utc).isoformat()
|
|
else:
|
|
result['timestamp'] = timestamp.replace(tzinfo=datetime.timezone.utc).isoformat()
|
|
|
|
# add in the non raw attribute ones
|
|
if self.type:
|
|
result['type'] = self.type
|
|
|
|
if self.description:
|
|
result['description'] = self.description
|
|
|
|
if self.url:
|
|
result['url'] = self.url
|
|
|
|
if self.title:
|
|
result['title'] = self.title
|
|
|
|
return result
|