view cagou/core/common_widgets.py @ 325:5868a5575e01

chat: cleaning + some improvments: - code cleaning, removed some dead code - some improvments on the way size is calculated, removed unnecessary sizing methods which were linked to properties - image have now a max size, this avoid gigantic image in the whole screen - in SimpleXHTMLWidget, Label are now splitted when xhtml is set - use a DelayedBoxLayout for messages, as they are really slow to be resized - use of RecycleView has been investigated, but it is not currently usable as dynamic contents are not propertly handled (see https://github.com/kivy/kivy/issues/6580 and https://github.com/kivy/kivy/issues/6582). Furthermore, some tests with RecycleView on Android don't give the expected speed boost, so BoxLayout still seems like the way to go for the moment. To be re-investigated at a later point if necessary.
author Goffi <goffi@goffi.org>
date Fri, 06 Dec 2019 13:25:31 +0100
parents 4374cb741eb5
children 51520ce98154
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#!/usr/bin/env python2
# -*- coding: utf-8 -*-

# Cagou: desktop/mobile frontend for Salut à Toi XMPP client
# Copyright (C) 2016-2019 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/>.

"""common advanced widgets, which can be reused everywhere."""

from sat.core.i18n import _
from kivy.uix.label import Label
from kivy.uix.boxlayout import BoxLayout
from cagou.core.menu import TouchMenuItemBehaviour
from kivy import properties
from kivy.metrics import dp
from kivy.clock import Clock
from cagou import G
from sat.core import log as logging

log = logging.getLogger(__name__)


class DelayedBoxLayout(BoxLayout):
    """A BoxLayout with delayed layout, to avoid slowing down during resize"""
    # XXX: thanks to Alexander Taylor for his blog post at
    #      https://blog.kivy.org/2019/07/a-delayed-resize-layout-in-kivy/

    do_layout_event = properties.ObjectProperty(None, allownone=True)
    layout_delay_s = properties.NumericProperty(0.2)

    def do_layout(self, *args, **kwargs):
        if self.do_layout_event is not None:
            self.do_layout_event.cancel()
        real_do_layout = super().do_layout
        self.do_layout_event = Clock.schedule_once(
            lambda dt: real_do_layout(*args, **kwargs),
            self.layout_delay_s)


class Identities(object):

    def __init__(self, entity_ids):
        identities = {}
        for cat, type_, name in entity_ids:
            identities.setdefault(cat, {}).setdefault(type_, []).append(name)
        client = identities.get('client', {})
        if 'pc' in client:
            self.type = 'desktop'
        elif 'phone' in client:
            self.type = 'phone'
        elif 'web' in client:
            self.type = 'web'
        elif 'console' in client:
            self.type = 'console'
        else:
            self.type = 'desktop'

        self.identities = identities

    @property
    def name(self):
        return list(self.identities.values())[0].values()[0][0]


class ItemWidget(TouchMenuItemBehaviour, BoxLayout):
    name = properties.StringProperty()
    base_width = properties.NumericProperty(dp(100))


class DeviceWidget(ItemWidget):

    def __init__(self, main_wid, entity_jid, identities, **kw):
        self.entity_jid = entity_jid
        self.identities = identities
        own_jid = next(iter(G.host.profiles.values())).whoami
        self.own_device = entity_jid.bare == own_jid
        if self.own_device:
            name = self.identities.name
        elif self.entity_jid.node:
            name = self.entity_jid.node
        elif self.entity_jid == own_jid.domain:
            name = _("your server")
        else:
            name = entity_jid

        super(DeviceWidget, self).__init__(name=name, main_wid=main_wid, **kw)

    @property
    def profile(self):
        return self.main_wid.profile

    def getSymbol(self):
        if self.identities.type == 'desktop':
            return 'desktop'
        elif self.identities.type == 'phone':
            return 'mobile'
        elif self.identities.type == 'web':
            return 'globe'
        elif self.identities.type == 'console':
            return 'terminal'
        else:
            return 'desktop'

    def do_item_action(self, touch):
        pass


class CategorySeparator(Label):
    pass