Mercurial > libervia-desktop
view src/widgets_handler.py @ 14:21a432afd06d
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 | 12a189fbb9ba |
children |
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#!/usr/bin/python # -*- coding: utf-8 -*- # Cagou: desktop/mobile frontend for Salut à Toi XMPP client # Copyright (C) 2016 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 kivy.uix.boxlayout import BoxLayout from kivy.uix.button import Button from kivy import properties NEW_WIDGET_DIST = 10 REMOVE_WIDGET_DIST = NEW_WIDGET_DIST class WHSplitter(Button): horizontal=properties.BooleanProperty(True) thickness=properties.NumericProperty(15) split_move = None # we handle one split at a time, so we use a class attribute def __init__(self, handler, **kwargs): super(WHSplitter, self).__init__(**kwargs) self.handler = handler def getPos(self, touch): if self.horizontal: relative_y = self.handler.to_local(*touch.pos, relative=True)[1] return self.handler.height - relative_y else: return touch.x def on_touch_move(self, touch): if self.split_move is None and self.collide_point(*touch.opos): WHSplitter.split_move = self if self.split_move is self: pos = self.getPos(touch) if pos > NEW_WIDGET_DIST: # we are above minimal distance, we resize the widget self.handler.setWidgetSize(self.horizontal, pos) def on_touch_up(self, touch): if self.split_move is self: pos = self.getPos(touch) if pos <= REMOVE_WIDGET_DIST: # if we go under minimal distance, the widget is not wanted anymore self.handler.removeWidget(self.horizontal) WHSplitter.split_move=None return super(WHSplitter, self).on_touch_up(touch) class WidgetsHandler(BoxLayout): def __init__(self, host, wid=None, **kw): self.host = host if wid is None: wid=self.default_widget self.vert_wid = self.hor_wid = None BoxLayout.__init__(self, orientation="vertical", **kw) self.blh = BoxLayout(orientation="horizontal") self.blv = BoxLayout(orientation="vertical") self.blv.add_widget(WHSplitter(self)) self.blv.add_widget(wid) self.blh.add_widget(WHSplitter(self, horizontal=False)) self.blh.add_widget(self.blv) self.add_widget(self.blh) @property def default_widget(self): return self.host.default_wid['factory'](self.host, self.host.default_wid, None, None) def removeWidget(self, vertical): if vertical and self.vert_wid is not None: self.remove_widget(self.vert_wid) self.vert_wid = None elif self.hor_wid is not None: self.blh.remove_widget(self.hor_wid) self.hor_wid = None def setWidgetSize(self, vertical, size): if vertical: if self.vert_wid is None: self.vert_wid = WidgetsHandler(self.host, self.default_widget, size_hint=(1, None)) self.add_widget(self.vert_wid, len(self.children)) self.vert_wid.height=size else: if self.hor_wid is None: self.hor_wid = WidgetsHandler(self.host, self.default_widget, size_hint=(None, 1)) self.blh.add_widget(self.hor_wid, len(self.blh.children)) self.hor_wid.width=size