view sat_frontends/primitivus/progress.py @ 3013:860c550028d6

memory (sqlite): properly wait for messages to be writen in database: the deferreds of the queries writing message to databases where not gathered and returned, so the caller was not waiting for them to continue its workflow. This was resulting in messages not always written when database was read just after the write (a case common with MUC implementation), and message was appearing empty when sent to bridge. fix 328
author Goffi <goffi@goffi.org>
date Thu, 18 Jul 2019 21:58:34 +0200
parents 003b8b4b56a7
children 9d0df638c8b4
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#!/usr/bin/env python2
# -*- coding: utf-8 -*-

# Primitivus: a SAT frontend
# Copyright (C) 2009-2019 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/>.

from sat.core.i18n import _
import urwid
from urwid_satext import sat_widgets
from sat_frontends.quick_frontend import quick_widgets


class Progress(urwid.WidgetWrap, quick_widgets.QuickWidget):
    PROFILES_ALLOW_NONE = True

    def __init__(self, host, target, profiles):
        assert target is None and profiles is None
        quick_widgets.QuickWidget.__init__(self, host, target)
        self.host = host
        self.progress_list = urwid.SimpleListWalker([])
        self.progress_dict = {}
        listbox = urwid.ListBox(self.progress_list)
        buttons = []
        buttons.append(sat_widgets.CustomButton(_("Clear progress list"), self._onClear))
        max_len = max([button.getSize() for button in buttons])
        buttons_wid = urwid.GridFlow(buttons, max_len, 1, 0, "center")
        main_wid = sat_widgets.FocusFrame(listbox, footer=buttons_wid)
        urwid.WidgetWrap.__init__(self, main_wid)

    def add(self, progress_id, message, profile):
        mess_wid = urwid.Text(message)
        progr_wid = urwid.ProgressBar("progress_normal", "progress_complete")
        column = urwid.Columns([mess_wid, progr_wid])
        self.progress_dict[(progress_id, profile)] = {
            "full": column,
            "progress": progr_wid,
            "state": "init",
        }
        self.progress_list.append(column)
        self.progressCB(self.host.loop, (progress_id, message, profile))

    def progressCB(self, loop, data):
        progress_id, message, profile = data
        data = self.host.bridge.progressGet(progress_id, profile)
        pbar = self.progress_dict[(progress_id, profile)]["progress"]
        if data:
            if self.progress_dict[(progress_id, profile)]["state"] == "init":
                # first answer, we must construct the bar
                self.progress_dict[(progress_id, profile)]["state"] = "progress"
                pbar.done = float(data["size"])

            pbar.set_completion(float(data["position"]))
            self.updateNotBar()
        else:
            if self.progress_dict[(progress_id, profile)]["state"] == "progress":
                self.progress_dict[(progress_id, profile)]["state"] = "done"
                pbar.set_completion(pbar.done)
                self.updateNotBar()
                return

        loop.set_alarm_in(0.2, self.progressCB, (progress_id, message, profile))

    def _removeBar(self, progress_id, profile):
        wid = self.progress_dict[(progress_id, profile)]["full"]
        self.progress_list.remove(wid)
        del (self.progress_dict[(progress_id, profile)])

    def _onClear(self, button):
        to_remove = []
        for progress_id, profile in self.progress_dict:
            if self.progress_dict[(progress_id, profile)]["state"] == "done":
                to_remove.append((progress_id, profile))
        for progress_id, profile in to_remove:
            self._removeBar(progress_id, profile)
        self.updateNotBar()

    def updateNotBar(self):
        if not self.progress_dict:
            self.host.setProgress(None)
            return
        progress = 0
        nb_bars = 0
        for progress_id, profile in self.progress_dict:
            pbar = self.progress_dict[(progress_id, profile)]["progress"]
            progress += pbar.current / pbar.done * 100
            nb_bars += 1
        av_progress = progress / float(nb_bars)
        self.host.setProgress(av_progress)