Mercurial > libervia-web
view src/browser/sat_browser/plugin_xep_0085.py @ 533:19fc2ebc02dd
browser_side: management of new "info" newMessage type
author | Goffi <goffi@goffi.org> |
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date | Fri, 05 Sep 2014 19:29:35 +0200 |
parents | 97c72fe4a5f2 |
children | c6380dd30602 |
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#!/usr/bin/python # -*- coding: utf-8 -*- # SAT plugin for Chat State Notifications Protocol (xep-0085) # Copyright (C) 2013, 2014 Adrien Cossa (souliane@mailoo.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/>. from pyjamas.Timer import Timer # Copy of the map from sat/src/plugins/plugin_xep_0085 TRANSITIONS = {"active": {"next_state": "inactive", "delay": 120}, "inactive": {"next_state": "gone", "delay": 480}, "gone": {"next_state": "", "delay": 0}, "composing": {"next_state": "paused", "delay": 30}, "paused": {"next_state": "inactive", "delay": 450} } class ChatStateMachine: """This is an adapted version of the ChatStateMachine from sat/src/plugins/plugin_xep_0085 which manage a timer on the web browser and keep it synchronized with the timer that runs on the backend. This is only needed to avoid calling the bridge method chatStateComposing too often ; accuracy is not needed so we can ignore the delay of the communication between the web browser and the backend (the timer on the web browser always starts a bit before). /!\ Keep this file up to date if you modify the one in the sat plugins directory. """ def __init__(self, host, target_s): self.host = host self.target_s = target_s self.started = False self.state = None self.timer = None def _onEvent(self, state): """Pyjamas callback takes no extra argument so we need this trick""" # Here we should check the value of the parameter "Send chat state notifications" # but this costs two messages. It's even better to call chatStateComposing # with a doubt, it will be checked by the back-end anyway before sending # the actual notifications to the other client. if state == "composing" and not self.started: return self.started = True self.next_state = state self.__onEvent(None) def __onEvent(self, timer): # print "on event %s" % self.next_state state = self.next_state self.next_state = "" if state != self.state and state == "composing": self.host.bridge.call('chatStateComposing', None, self.target_s) self.state = state if not self.timer is None: self.timer.cancel() if not state in TRANSITIONS: return if not "next_state" in TRANSITIONS[state]: return if not "delay" in TRANSITIONS[state]: return next_state = TRANSITIONS[state]["next_state"] delay = TRANSITIONS[state]["delay"] if next_state == "" or delay < 0: return self.next_state = next_state # pyjamas timer in milliseconds self.timer = Timer(delay * 1000, self.__onEvent)