Sphinx

# Event Manager API

class sphinx.events.EventManager(app: Sphinx)

  Event manager for Sphinx.

  add(name: str) → None

    Register a custom Sphinx event called name.

    This is needed to be able to emit the event.

    Parameters:

      name – The name of the event.

  connect(name: Literal['config-inited'], callback: Callable[[Sphinx, Config], None], priority: int) → int
  connect(name: Literal['builder-inited'], callback: Callable[[Sphinx], None], priority: int) → int
  connect(name: Literal['env-get-outdated'], callback: Callable[[Sphinx, BuildEnvironment, Set[str], Set[str], Set[str]], Sequence[str]], priority: int) → int
  connect(name: Literal['env-before-read-docs'], callback: Callable[[Sphinx, BuildEnvironment, list[str]], None], priority: int) → int
  connect(name: Literal['env-purge-doc'], callback: Callable[[Sphinx, BuildEnvironment, str], None], priority: int) → int
  connect(name: Literal['source-read'], callback: Callable[[Sphinx, str, list[str]], None], priority: int) → int
  connect(name: Literal['include-read'], callback: Callable[[Sphinx, Path, str, list[str]], None], priority: int) → int
  connect(name: Literal['doctree-read'], callback: Callable[[Sphinx, nodes.document], None], priority: int) → int
  connect(name: Literal['env-merge-info'], callback: Callable[[Sphinx, BuildEnvironment, Set[str], BuildEnvironment], None], priority: int) → int
  connect(name: Literal['env-updated'], callback: Callable[[Sphinx, BuildEnvironment], str], priority: int) → int
  connect(name: Literal['env-get-updated'], callback: Callable[[Sphinx, BuildEnvironment], Iterable[str]], priority: int) → int
  connect(name: Literal['env-check-consistency'], callback: Callable[[Sphinx, BuildEnvironment], None], priority: int) → int
  connect(name: Literal['write-started'], callback: Callable[[Sphinx, Builder], None], priority: int) → int
  connect(name: Literal['doctree-resolved'], callback: Callable[[Sphinx, nodes.document, str], None], priority: int) → int
  connect(name: Literal['missing-reference'], callback: Callable[[Sphinx, BuildEnvironment, addnodes.pending_xref, nodes.TextElement], nodes.reference | None], priority: int) → int
  connect(name: Literal['warn-missing-reference'], callback: Callable[[Sphinx, Domain, addnodes.pending_xref], bool | None], priority: int) → int
  connect(name: Literal['build-finished'], callback: Callable[[Sphinx, Exception | None], None], priority: int) → int
  connect(name: Literal['html-collect-pages'], callback: Callable[[Sphinx], Iterable[tuple[str, dict[str, Any], str]]], priority: int) → int
  connect(name: Literal['html-page-context'], callback: Callable[[Sphinx, str, str, dict[str, Any], nodes.document], str | None], priority: int) → int
  connect(name: Literal['linkcheck-process-uri'], callback: Callable[[Sphinx, str], str | None], priority: int) → int
  connect(name: Literal['object-description-transform'], callback: Callable[[Sphinx, str, str, addnodes.desc_content], None], priority: int) → int
  connect(name: Literal['autodoc-process-docstring'], callback: _AutodocProcessDocstringListener, priority: int) → int
  connect(name: Literal['autodoc-before-process-signature'], callback: _AutodocBeforeProcessSignatureListener, priority: int) → int
  connect(name: Literal['autodoc-process-signature'], callback: _AutodocProcessSignatureListener, priority: int) → int
  connect(name: Literal['autodoc-process-bases'], callback: _AutodocProcessBasesListener, priority: int) → int
  connect(name: Literal['autodoc-skip-member'], callback: _AutodocSkipMemberListener, priority: int) → int
  connect(name: Literal['todo-defined'], callback: Callable[[Sphinx, todo_node], None], priority: int) → int
  connect(name: Literal['viewcode-find-source'], callback: Callable[[Sphinx, str], tuple[str, dict[str, tuple[Literal['class', 'def', 'other'], int, int]]]], priority: int) → int
  connect(name: Literal['viewcode-follow-imported'], callback: Callable[[Sphinx, str, str], str | None], priority: int) → int
  connect(name: str, callback: Callable[..., Any], priority: int) → int

    Connect a handler to specific event.

    Register callback to be called when the name event is emitted.

    See event callbacks for details on available core events and the arguments of their corresponding callback functions.

    Parameters:

      - name – The name of the target event.

      - callback – Callback function for the event.

      - priority – The priority of the callback. The callbacks will be invoked in ascending order of priority.

    Returns:

      A listener ID, for use with the `disconnect()` method.

    Changed in version 3.0: Support priority

  disconnect(listener_id: int) → None

    Disconnect the handler given by listener_id.

    Parameters:

      listener_id – A listener_id previously returned by `connect()`.

  emit(name: str, *args: Any, allowed_exceptions: tuple[type[Exception], ...] = ()) → list[Any]

    Emit a Sphinx event.

    This emits the name event and passes args to the handler functions. Return the return values of all handlers as a list. Do not emit core Sphinx events in extensions!

    Parameters:

      - name – The name of the event that will be emitted.

      - args – The arguments for the event, to be passed to the handler functions.

      - allowed_exceptions – The list of exceptions that are allowed in the handlers.

    Changed in version 3.1: Added allowed_exceptions to specify path-through exceptions

  emit_firstresult(name: str, *args: Any, allowed_exceptions: tuple[type[Exception], ...] = ()) → Any

    Emit a Sphinx event and return the first result.

    This emits the name event and passes args to the handler functions. The first non-None result is returned.

    Parameters:

      - name – The name of the event that will be emitted.

      - args – The arguments for the event, to be passed to the handler functions.

      - allowed_exceptions – The list of exceptions that are allowed in the handlers.

    Added in version 0.5.

    Changed in version 3.1: Added allowed_exceptions to specify path-through exceptions