Mercurial > libervia-backend
view src/tools/trigger.py @ 2408:a870daeab15e
jp: XMLUI implementation first draft:
first implementation of XMLUI for jp. The display is simplistic for now by displaying widgets in the order in which they appear, and doing a simple input when a value is needed.
Not all widgets/dialogs are implemented yet, and most flags/options/styles are not handled.
It is possible to automate command, using "workflow" attribute:
it's a list of command that are executed in order. So far only a const (SUBMIT) and fields values can be set.
If verbosity is set, fields name are displayed, which can be useful to automate commands.
author | Goffi <goffi@goffi.org> |
---|---|
date | Tue, 31 Oct 2017 23:17:37 +0100 |
parents | 2daf7b4c6756 |
children | 8b37a62336c3 |
line wrap: on
line source
#!/usr/bin/env python2 # -*- coding: utf-8 -*- # SAT: a jabber client # Copyright (C) 2009-2016 Jérôme Poisson (goffi@goffi.org) # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # This program 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 Affero General Public License for more details. # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. """Misc usefull classes""" from sat.core.i18n import _ from sat.core.log import getLogger log = getLogger(__name__) class TriggerException(Exception): pass class SkipOtherTriggers(Exception): """ Exception to raise if normal behaviour must be followed instead of following triggers list """ pass class TriggerManager(object): """This class manage triggers: code which interact to change the behaviour of SàT""" try: # FIXME: to be removed when a better solution is found MIN_PRIORITY = float('-inf') MAX_PRIORITY = float('+inf') except: # XXX: Pyjamas will bug if you specify ValueError here # Pyjamas uses the JS Float class MIN_PRIORITY = Number.NEGATIVE_INFINITY MAX_PRIORITY = Number.POSITIVE_INFINITY def __init__(self): self.__triggers = {} def add(self, point_name, callback, priority=0): """Add a trigger to a point @param point_name: name of the point when the trigger should be run @param callback: method to call at the trigger point @param priority: callback will be called in priority order, biggest first """ if point_name not in self.__triggers: self.__triggers[point_name] = [] if priority != 0 and priority in [trigger_tuple[0] for trigger_tuple in self.__triggers[point_name]]: if priority in (self.MIN_PRIORITY, self.MAX_PRIORITY): log.warning(_(u"There is already a bound priority [%s]") % point_name) else: log.debug(_(u"There is already a trigger with the same priority [%s]") % point_name) self.__triggers[point_name].append((priority, callback)) self.__triggers[point_name].sort(key=lambda trigger_tuple: trigger_tuple[0], reverse=True) def remove(self, point_name, callback): """Remove a trigger from a point @param point_name: name of the point when the trigger should be run @param callback: method to remove, must exists in the trigger point""" for trigger_tuple in self.__triggers[point_name]: if trigger_tuple[1] == callback: self.__triggers[point_name].remove(trigger_tuple) return raise TriggerException("Trying to remove an unexisting trigger") def point(self, point_name, *args, **kwargs): """This put a trigger point All the trigger for that point will be run @param point_name: name of the trigger point @return: True if the action must be continued, False else""" if point_name not in self.__triggers: return True for priority, trigger in self.__triggers[point_name]: try: if not trigger(*args, **kwargs): return False except SkipOtherTriggers: break return True