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annotate src/cagou_widget.py @ 14:21a432afd06d

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plugin system, first draft: - widgets are now handled with plugins, ContactList and WidgetSelector have been changed to be pluggins - everything in PLUGIN_INFO (including PLUGIN_INFO itself) is optional. Best guess is used if a value is missing - WidgetsHandler use default widget from plugins, which is WidgetSelector for now - PLUGIN_INFO is used in the same way as for backed plugins, with (for now) following possible keys: - "name": human readable name - "description": long description of what widget do - "import_name": unique short name used as reference for import - "main": main class name - "factory": callback used to instanciate a widget (see Cagou._defaultFactory) - "kv_file": path to the kv language file to load (same filename with ".kv" will be used if key is not found) other data should be added quickly, as a path to a file used as icon - host.getPluggedWidgets can be used to find loaded widgets. except_cls can be used to excluse a class (self.__class__ usually) - fixed host.switchWidget when old widget is already a CagouWidget - CagouWidget header new display the available widgets
author Goffi <goffi@goffi.org>
date Sat, 09 Jul 2016 16:02:44 +0200
parents 8b2836b5b6c7
children
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1 #!/usr/bin/python
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2 # -*- coding: utf-8 -*-
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4 # Cagou: desktop/mobile frontend for Salut à Toi XMPP client
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5 # Copyright (C) 2016 Jérôme Poisson (goffi@goffi.org)
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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21 from sat.core import log as logging
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22 log = logging.getLogger(__name__)
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23 from kivy.uix.button import Button
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24 from kivy.uix.boxlayout import BoxLayout
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25 from kivy.uix.dropdown import DropDown
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28 class HeaderWidgetButton(Button):
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29 pass
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32 class HeaderWidgetSelector(DropDown):
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34 def __init__(self, cagou_widget):
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35 super(HeaderWidgetSelector, self).__init__()
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36 host = cagou_widget.host
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37 for plugin_info in host.getPluggedWidgets(except_cls=cagou_widget.__class__):
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38 btn = HeaderWidgetButton(text=plugin_info["name"])
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39 btn.bind(on_release=lambda btn, plugin_info=plugin_info: cagou_widget.switchWidget(plugin_info))
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40 self.add_widget(btn)
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43 class CagouWidget(BoxLayout):
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45 def __init__(self, host):
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46 self.host = host
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47 BoxLayout.__init__(self, orientation="vertical")
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48 self.selector = HeaderWidgetSelector(self)
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50 def switchWidget(self, plugin_info):
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51 self.selector.dismiss()
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52 factory = plugin_info["factory"]
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53 new_widget = factory(self.host, plugin_info, None, None)
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54 self.host.switchWidget(self, new_widget)