--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cagou/core/cagou_widget.py	Thu Apr 05 17:11:21 2018 +0200
@@ -0,0 +1,82 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# Cagou: desktop/mobile frontend for Salut à Toi XMPP client
+# Copyright (C) 2016-2018 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.image import Image
+from kivy.uix.behaviors import ButtonBehavior
+from kivy.uix.boxlayout import BoxLayout
+from kivy.uix.dropdown import DropDown
+from kivy import properties
+from cagou import G
+
+
+class HeaderWidgetChoice(ButtonBehavior, BoxLayout):
+    def __init__(self, cagou_widget, plugin_info):
+        self.plugin_info = plugin_info
+        super(HeaderWidgetChoice, self).__init__()
+        self.bind(on_release=lambda btn: cagou_widget.switchWidget(plugin_info))
+
+
+class HeaderWidgetCurrent(ButtonBehavior, Image):
+    pass
+
+
+class HeaderWidgetSelector(DropDown):
+
+    def __init__(self, cagou_widget):
+        super(HeaderWidgetSelector, self).__init__()
+        for plugin_info in G.host.getPluggedWidgets(except_cls=cagou_widget.__class__):
+            choice = HeaderWidgetChoice(cagou_widget, plugin_info)
+            self.add_widget(choice)
+
+
+class CagouWidget(BoxLayout):
+    header_input = properties.ObjectProperty(None)
+    header_box = properties.ObjectProperty(None)
+
+    def __init__(self):
+        for p in G.host.getPluggedWidgets():
+            if p['main'] == self.__class__:
+                self.plugin_info = p
+                break
+        BoxLayout.__init__(self, orientation="vertical")
+        self.selector = HeaderWidgetSelector(self)
+
+    def switchWidget(self, plugin_info):
+        self.selector.dismiss()
+        factory = plugin_info["factory"]
+        new_widget = factory(plugin_info, None, iter(G.host.profiles))
+        G.host.switchWidget(self, new_widget)
+
+    def onHeaderInput(self):
+        log.info(u"header input text entered")
+
+    def onHeaderInputComplete(self, wid, text):
+        return
+
+    def on_touch_down(self, touch):
+        if self.collide_point(*touch.pos):
+            G.host.selected_widget = self
+        super(CagouWidget, self).on_touch_down(touch)
+
+    def headerInputAddExtra(self, widget):
+        """add a widget on the right of header input"""
+        self.header_box.add_widget(widget)