poezio/doc/source/dev/plugin.rst
Maxime “pep” Buquet 37ddf81fd4
doc: Add doc for BasePlugin dependencies and refs
Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>
2020-04-12 18:59:13 +02:00

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Plugin API documentation
========================
External plugins
----------------
It is possible to create external plugins easily using `setuptools'
entry_point
<https://setuptools.readthedocs.io/en/latest/setuptools.html#dynamic-discovery-of-services-and-plugins>`_
feature. You can register your plugin against the ``poezio_plugins`` entry
group with the following snippet in your project ``setup.py``:
.. code-block:: python
setup(
..
packages=['yourmodule'],
entry_points={'poezio_plugins': 'yourplugin = yourmodule'},
..
)
The plugin will then be available as ``yourplugin`` at runtime.
BasePlugin
----------
.. module:: poezio.plugin
.. autoclass:: BasePlugin
.. method:: init(self)
Method called at the creation of the plugin.
Do not override __init__ and use this instead.
.. method:: cleanup(self)
Method called before the destruction of the plugin.
Use it to erase or save things before the plugin is disabled.
.. attribute:: core
The Poezio :py:class:`~Core` object. Use it carefully.
.. attribute:: api
The :py:class:`~PluginAPI` instance for this plugin.
.. attribute:: dependencies
Dependencies on other plugins, as a set of strings. A reference
to each dependency will be added in ``refs``.
.. attribute:: refs
This attribute is not to be edited by the user. It will be
populated when the plugin is initialized with references on each
plugin specified in the ``dependencies`` attribute.
Each plugin inheriting :py:class:`~BasePlugin` has an ``api`` member variable, which refers
to a :py:class:`~PluginAPI` object.
The :py:class:`~PluginAPI` object is an a interface through which the :py:class:`~BasePlugin`
(and inheritors) *should* go to interact with poezio. If it is not sufficient, then the ``core``
member can be used.
PluginAPI
---------
.. autoclass:: PluginAPI
:members:
:undoc-members:
Example plugins
---------------
**Example 1:** Add a simple command that sends "Hello World!" into the conversation
.. code-block:: python
class Plugin(BasePlugin):
def init(self):
self.add_command('hello', self.command_hello, "Send 'Hello World!'")
def command_hello(self, arg):
self.core.send_message('Hello World!')
**Example 2:** Adds an event handler that sends “tg” to a groupchat when a message is received from someone named “Partauche”
.. code-block:: python
class Plugin(BasePlugin):
def init(self):
self.add_event_handler('muc_msg', self.on_groupchat_message)
def on_groupchat_message(self, message, tab):
if message['mucnick'] == "Partauche":
tab.command_say('tg')