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- # -*- test-case-name: twisted.internet.test -*-
- # Copyright (c) Twisted Matrix Laboratories.
- # See LICENSE for details.
- """
- This module provides support for Twisted to interact with the glib/gtk2
- mainloop.
- In order to use this support, simply do the following::
- from twisted.internet import gtk2reactor
- gtk2reactor.install()
- Then use twisted.internet APIs as usual. The other methods here are not
- intended to be called directly.
- """
- # System Imports
- import sys
- if 'gi' in sys.modules:
- raise ImportError(
- "Introspected and static glib/gtk bindings must not be mixed; can't "
- "import gtk2reactor since gi module is already imported.")
- # Disable gi imports to avoid potential problems.
- sys.modules['gi'] = None
- try:
- if not hasattr(sys, 'frozen'):
- # Don't want to check this for py2exe
- import pygtk
- pygtk.require('2.0')
- except (ImportError, AttributeError):
- pass # maybe we're using pygtk before this hack existed.
- import gobject
- if hasattr(gobject, "threads_init"):
- # recent versions of python-gtk expose this. python-gtk=2.4.1
- # (wrapping glib-2.4.7) does. python-gtk=2.0.0 (wrapping
- # glib-2.2.3) does not.
- gobject.threads_init()
- # Twisted Imports
- from twisted.internet import _glibbase
- from twisted.python import runtime
- class Gtk2Reactor(_glibbase.GlibReactorBase):
- """
- PyGTK+ 2 event loop reactor.
- """
- _POLL_DISCONNECTED = gobject.IO_HUP | gobject.IO_ERR | gobject.IO_NVAL
- _POLL_IN = gobject.IO_IN
- _POLL_OUT = gobject.IO_OUT
- # glib's iochannel sources won't tell us about any events that we haven't
- # asked for, even if those events aren't sensible inputs to the poll()
- # call.
- INFLAGS = _POLL_IN | _POLL_DISCONNECTED
- OUTFLAGS = _POLL_OUT | _POLL_DISCONNECTED
- def __init__(self, useGtk=True):
- _gtk = None
- if useGtk is True:
- import gtk as _gtk
- _glibbase.GlibReactorBase.__init__(self, gobject, _gtk, useGtk=useGtk)
- class PortableGtkReactor(_glibbase.PortableGlibReactorBase):
- """
- Reactor that works on Windows.
- Sockets aren't supported by GTK+'s input_add on Win32.
- """
- def __init__(self, useGtk=True):
- _gtk = None
- if useGtk is True:
- import gtk as _gtk
- _glibbase.PortableGlibReactorBase.__init__(self, gobject, _gtk,
- useGtk=useGtk)
- def install(useGtk=True):
- """
- Configure the twisted mainloop to be run inside the gtk mainloop.
- @param useGtk: should glib rather than GTK+ event loop be
- used (this will be slightly faster but does not support GUI).
- """
- reactor = Gtk2Reactor(useGtk)
- from twisted.internet.main import installReactor
- installReactor(reactor)
- return reactor
- def portableInstall(useGtk=True):
- """
- Configure the twisted mainloop to be run inside the gtk mainloop.
- """
- reactor = PortableGtkReactor()
- from twisted.internet.main import installReactor
- installReactor(reactor)
- return reactor
- if runtime.platform.getType() != 'posix':
- install = portableInstall
- __all__ = ['install']
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