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# Miro - an RSS based video player application
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# Copyright (C) 2005-2010 Participatory Culture Foundation
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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# In addition, as a special exception, the copyright holders give
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# permission to link the code of portions of this program with the OpenSSL
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# You must obey the GNU General Public License in all respects for all of
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# the code used other than OpenSSL. If you modify file(s) with this
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# exception, you may extend this exception to your version of the file(s),
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# but you are not obligated to do so. If you do not wish to do so, delete
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# this exception statement from your version. If you delete this exception
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# statement from all source files in the program, then also delete it here.
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"""miro.plat.frontends.widgets.threads -- Handle UI threading."""
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from PyObjCTools import AppHelper
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def call_wrapper(func, args, kwargs):
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msg = "Error when calling %s" % func
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msg += ' (args: %s)' % (args,)
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msg += ' (kwargs: %s)' % (kwargs,)
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logging.warn("%s\n%s", msg, traceback.format_exc())
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def call_on_ui_thread(func, *args, **kwargs):
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"""Call a function in the UI thread."""
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AppHelper.callAfter(call_wrapper(func, args, kwargs))
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def on_ui_thread(func):
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"""Decorator which specifies that a method should always be called on the
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def scheduled(*args, **kwargs):
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call_on_ui_thread(func, *args, **kwargs)
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def warn_if_not_on_main_thread(name):
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if threading.currentThread().getName() != 'MainThread':
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print "WARNING: function %s not on main thread" % name