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- #
- # This file is part of Checkbox.
- #
- # Copyright 2008 Canonical Ltd.
- #
- # Checkbox is free software: you can redistribute it and/or modify
- # it under the terms of the GNU General Public License as published by
- # the Free Software Foundation, either version 3 of the License, or
- # (at your option) any later version.
- #
- # Checkbox is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- # GNU General Public License for more details.
- #
- # You should have received a copy of the GNU General Public License
- # along with Checkbox. If not, see <http://www.gnu.org/licenses/>.
- #
- import posixpath
-
- from gettext import gettext as _
-
- from checkbox.contrib.glock import GlobalLock, LockAlreadyAcquired
-
- from checkbox.lib.safe import safe_make_directory
-
- from checkbox.properties import Path
- from checkbox.plugin import Plugin
-
-
- class LockPrompt(Plugin):
-
- # Filename where the application lock is stored.
- filename = Path(default="%(checkbox_data)s/lock")
-
- def register(self, manager):
- super(LockPrompt, self).register(manager)
- self._lock = None
-
- self._manager.reactor.call_on("prompt-begin", self.prompt_begin)
-
- def prompt_begin(self, interface):
- directory = posixpath.dirname(self.filename)
- safe_make_directory(directory)
-
- self._lock = GlobalLock(self.filename)
- try:
- self._lock.acquire()
- except LockAlreadyAcquired:
- self._manager.reactor.fire("prompt-error", interface,
- _("Another checkbox is running"),
- _("There is another checkbox running. Please close it first."))
- self._manager.reactor.stop_all()
-
-
- factory = LockPrompt
-