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Backport PR #5459: Fix interact animation page jump FF...
Backport PR #5459: Fix interact animation page jump FF Firefox doesn't render images immediately as the data is available. When animating the way that we animate, this causes the output area to collapse quickly before returning to its original size. When the output area collapses, FireFox scrolls upwards in attempt to compensate for the lost vertical content (so it looks like you are on the same spot in the page, with respect to the contents below the image's prior location). The solution is to resize the image output after the `img onload` event has fired. This PR: - Releases the `clear_output` height lock after the image has been loaded (instead of immediately or using a timeout). - Removes a `setTimeout` call in the `append_output` method. - `clear_output` in zmqshell no longer sends `\r` to the stream outputs. closes #5128

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manager.py
77 lines | 2.8 KiB | text/x-python | PythonLexer
"""A kernel manager for in-process kernels."""
#-----------------------------------------------------------------------------
# Copyright (C) 2013 The IPython Development Team
#
# Distributed under the terms of the BSD License. The full license is in
# the file COPYING, distributed as part of this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
from IPython.utils.traitlets import Instance, DottedObjectName
from IPython.kernel.managerabc import KernelManagerABC
from IPython.kernel.manager import KernelManager
#-----------------------------------------------------------------------------
# Main kernel manager class
#-----------------------------------------------------------------------------
class InProcessKernelManager(KernelManager):
"""A manager for an in-process kernel.
This class implements the interface of
`IPython.kernel.kernelmanagerabc.KernelManagerABC` and allows
(asynchronous) frontends to be used seamlessly with an in-process kernel.
See `IPython.kernel.kernelmanager.KernelManager` for docstrings.
"""
# The kernel process with which the KernelManager is communicating.
kernel = Instance('IPython.kernel.inprocess.ipkernel.InProcessKernel')
# the client class for KM.client() shortcut
client_class = DottedObjectName('IPython.kernel.inprocess.BlockingInProcessKernelClient')
#--------------------------------------------------------------------------
# Kernel management methods
#--------------------------------------------------------------------------
def start_kernel(self, **kwds):
from IPython.kernel.inprocess.ipkernel import InProcessKernel
self.kernel = InProcessKernel()
def shutdown_kernel(self):
self._kill_kernel()
def restart_kernel(self, now=False, **kwds):
self.shutdown_kernel()
self.start_kernel(**kwds)
@property
def has_kernel(self):
return self.kernel is not None
def _kill_kernel(self):
self.kernel = None
def interrupt_kernel(self):
raise NotImplementedError("Cannot interrupt in-process kernel.")
def signal_kernel(self, signum):
raise NotImplementedError("Cannot signal in-process kernel.")
def is_alive(self):
return self.kernel is not None
def client(self, **kwargs):
kwargs['kernel'] = self.kernel
return super(InProcessKernelManager, self).client(**kwargs)
#-----------------------------------------------------------------------------
# ABC Registration
#-----------------------------------------------------------------------------
KernelManagerABC.register(InProcessKernelManager)