view cagou/plugins/plugin_wid_widget_selector.py @ 353:19422bbd9c8e

core (widgets handler): refactoring: - CagouWidget now has class properties (to be overridden when needed) which indicate how if the widget handle must add a wrapping ScreenManager (global_screen_manager) or show all instances of the class in a Carousel (collection_carousel). If none of those options is used, a ScrollView will be wrapping the widget, to be sure that the widget will be resized correctly when necessary (without it, the widget could still be drawn in the backround when the size is too small and overflow on the WidgetWrapper, this would be the case with WidgetSelector) - some helper methods/properties have been added to CagouWidget. Check docstrings for details - better handling of (in)visible widget in WidgetsHandler - thanks to the new wrapping ScrollView, WidgetSelect will show scroll bars if the available space is too small. - bugs fixes
author Goffi <goffi@goffi.org>
date Fri, 17 Jan 2020 18:44:35 +0100
parents 772c170b47a9
children 4d3a0c4f2430
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#!/usr/bin/env python3

# 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/>.


from sat.core import log as logging
log = logging.getLogger(__name__)
from sat.core.i18n import _
from cagou.core.constants import Const as C
from kivy.uix.widget import Widget
from kivy.uix.boxlayout import BoxLayout
from kivy import properties
from kivy.uix.behaviors import ButtonBehavior
from cagou.core import cagou_widget
from cagou import G


PLUGIN_INFO = {
    "name": _("widget selector"),
    "import_name": C.WID_SELECTOR,
    "main": "WidgetSelector",
    "description": _("show available widgets and allow to select one"),
    "icon_medium": "{media}/icons/muchoslava/png/selector_no_border_blue_44.png"
}


class WidgetSelItem(ButtonBehavior, BoxLayout):
    plugin_info = properties.DictProperty()
    item = properties.ObjectProperty()

    def on_release(self, *args):
        log.debug("widget selection: {}".format(self.plugin_info["name"]))
        factory = self.plugin_info["factory"]
        G.host.switchWidget(self, factory(self.plugin_info, None, profiles=iter(G.host.profiles)))


class WidgetSelector(cagou_widget.CagouWidget):
    # TODO: should inherit from QuickWidget

    def __init__(self):
        super(WidgetSelector, self).__init__()
        self.items = []
        for plugin_info in G.host.getPluggedWidgets(except_cls=self.__class__):
            item = WidgetSelItem(plugin_info=plugin_info)
            self.items.append(item.item)
            item.item.bind(minimum_width=self.adjust_width)
            self.add_widget(item)
        self.add_widget(Widget())

    def adjust_width(self, label, texture_size):
        width = max([i.minimum_width for i in self.items])
        for i in self.items:
            i.width = width

    @classmethod
    def factory(cls, plugin_info, target, profiles):
        return cls()


PLUGIN_INFO["factory"] = WidgetSelector.factory