-eOdZddlmZddlZejeZddlmZddl m Z ddl m Z dd l mZmZd Zee gdfZGd d eZdS) aX Provide a Bokeh Application Handler to build up documents by running a specified Python function. This Handler is not used by the Bokeh server command line tool, but is often useful if users wish to embed the Bokeh server programmatically: .. code-block:: python def make_doc(doc: Document): # do work to modify the document, add plots, widgets, etc. return doc app = Application(FunctionHandler(make_doc)) server = Server({'/bkapp': app}, io_loop=IOLoop.current()) server.start() For complete examples of this technique, see :bokeh-tree:`examples/server/api` ) annotationsN)Callable)Document)_check_callback)Handlerhandle_exception)FunctionHandlercjeZdZUdZded<ded<ded<dddfd ZeddZddZxZ S)r aI A Handler that accepts a plain python function to use for modifying Bokeh Documents. For example, the following code configures a handler with a function that adds an empty plot to a Document: .. code-block:: python def add_empty_plot(doc: Document): p = figure(x_range=(0, 10), y_range=(0, 10)) doc.add_root(p) return doc handler = FunctionHandler(add_empty_plot) This handler could be configured on an Application, and the Application would run this function every time a new session is created. ModifyDoc_funcbool_trap_exceptions _safe_to_forkF)trap_exceptionsfuncrreturnNonectt|d||_||_d|_dS)a0 Args: func (callable) : a function to modify and return a Bokeh Document. The function should have the form: .. code-block:: python def func(doc: Document): # modify doc return doc and it should return the passed-in document after making any modifications in-place. trap_exceptions (bool) : should exceptions in `func` be caught and logged or allowed to propagate )docTN)super__init__rrrr)selfrr __class__s Clib/python3.11/site-packages/bokeh/application/handlers/function.pyrzFunctionHandler.__init__[sH( h''' /!c|jS)z Whether it is still safe for the Bokeh server to fork new workers. ``False`` if ``modify_doc`` has already been called. )r)rs r safe_to_forkzFunctionHandler.safe_to_forkys !!rrrc ||n0#t$r#}|jrt||nYd}~nd}~wwxYwd|_dS#d|_wxYw)z Execute the configured ``func`` to modify the document. After this method is first executed, ``safe_to_fork`` will return ``False``. NF)r Exceptionrr r)rres rmodify_documentzFunctionHandler.modify_documents ' JJsOOOO   $  q))))*))))  "'D   D  & & & &s*A AAAAA A)rr rrrr)rr)rrrr) __name__ __module__ __qualname____doc____annotations__rpropertyrr# __classcell__)rs@rr r Bs(CH""""""""<"""X"''''''''rr )r' __future__rlogging getLoggerr$logtypingrdocumentrutil.callback_managerrhandlerr r __all__r r rrr5s0#"""""g!!! 444444........   hZ% & Q'Q'Q'Q'Q'gQ'Q'Q'Q'Q'r