sugar-toolkit-gtk3/shell/view/home/MeshBox.py

# Copyright (C) 2006-2007 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

import random

import hippo
import gobject
from gettext import gettext as _

from sugar.graphics.spreadlayout import SpreadLayout
from sugar.graphics.canvasicon import CanvasIcon
from sugar.graphics import style
from sugar.graphics import xocolor
from sugar.graphics import canvasicon
from sugar.graphics import units
from sugar import profile

from model import accesspointmodel
from model.devices.network import mesh
from hardware import hardwaremanager
from hardware import nmclient
from view.BuddyIcon import BuddyIcon
from view.pulsingicon import PulsingIcon
from view.home.snowflakelayout import SnowflakeLayout

_ICON_NAME = 'device-network-wireless'

class AccessPointView(PulsingIcon):
    def __init__(self, model):
        PulsingIcon.__init__(self)
        self._model = model

        self.connect('activated', self._activate_cb)

        model.connect('notify::strength', self._strength_changed_cb)
        model.connect('notify::name', self._name_changed_cb)
        model.connect('notify::state', self._state_changed_cb)

        import sha
        sh = sha.new()
        data = self._model.props.name + hex(self._model.props.capabilities) + \
                hex(self._model.props.mode)
        sh.update(data)
        h = hash(sh.digest())
        idx = h % len(xocolor._colors)
        self._device_stroke = xocolor._colors[idx][0]
        self._device_fill = xocolor._colors[idx][1]

        self._update_icon()
        self._update_name()
        self._update_state()

    def _strength_changed_cb(self, model, pspec):
        self._update_icon()

    def _name_changed_cb(self, model, pspec):
        self._update_name()

    def _state_changed_cb(self, model, pspec):
        self._update_state()

    def _activate_cb(self, icon):
        network_manager = hardwaremanager.get_network_manager()
        if network_manager:
            device = self._model.get_nm_device()
            network = self._model.get_nm_network()
            network_manager.set_active_device(device, network)

    def _update_name(self):
        if self.palette:
            self.palette.set_primary_text(self._model.props.name)
        else:
            self.set_tooltip(self._model.props.name)

    def _update_icon(self):
        icon_name = canvasicon.get_icon_state(
                    _ICON_NAME, self._model.props.strength)
        if icon_name:
            self.props.icon_name = icon_name

    def _update_state(self):
        if self._model.props.state == accesspointmodel.STATE_CONNECTING:
            self.props.pulse_time = 1.0
            self.props.colors = [
                [ style.Color(self._device_stroke),
                  style.Color(self._device_fill) ],
                [ style.Color(self._device_stroke),
                  style.Color('#e2e2e2') ]
            ]
        elif self._model.props.state == accesspointmodel.STATE_CONNECTED:
            self.props.pulse_time = 2.0
            self.props.colors = [
                [ style.Color(self._device_stroke),
                  style.Color(self._device_fill) ],
                [ style.Color('#ffffff'),
                  style.Color(self._device_fill) ]
            ]
        elif self._model.props.state == accesspointmodel.STATE_NOTCONNECTED:
            self.props.pulse_time = 0.0
            self.props.colors = [
                [ style.Color(self._device_stroke),
                  style.Color(self._device_fill) ]
            ]


_MESH_ICON_NAME = 'theme:device-network-mesh'

class MeshDeviceView(PulsingIcon):
    def __init__(self, nm_device):
        PulsingIcon.__init__(self, scale=units.MEDIUM_ICON_SCALE,
                icon_name=_MESH_ICON_NAME)
        self._nm_device = nm_device
        self.set_tooltip(_("Mesh Network"))

        mycolor = profile.get_color()
        self._device_fill = mycolor.get_fill_color()
        self._device_stroke = mycolor.get_stroke_color()

        self.connect('activated', self._activate_cb)

        self._nm_device.connect('state-changed', self._state_changed_cb)
        self._update_state()

    def _activate_cb(self, icon):
        network_manager = hardwaremanager.get_network_manager()
        network_manager.set_active_device(self._nm_device)

    def _state_changed_cb(self, model):
        self._update_state()

    def _update_state(self):
        state = self._nm_device.get_state()
        if state == nmclient.DEVICE_STATE_ACTIVATING:
            self.props.pulse_time = 0.75
            self.props.colors = [
                [ style.Color(self._device_stroke),
                  style.Color(self._device_fill) ],
                [ style.Color(self._device_stroke),
                  style.Color('#e2e2e2') ]
            ]
        elif state == nmclient.DEVICE_STATE_ACTIVATED:
            self.props.pulse_time = 1.5
            self.props.colors = [
                [ style.Color(self._device_stroke),
                  style.Color(self._device_fill) ],
                [ style.Color('#ffffff'),
                  style.Color(self._device_fill) ]
            ]
        elif state == nmclient.DEVICE_STATE_INACTIVE:
            self.props.pulse_time = 0.0
            self.props.colors = [
                [ style.Color(self._device_stroke),
                  style.Color(self._device_fill) ]
            ]

class ActivityView(hippo.CanvasBox):
    def __init__(self, shell, model):
        hippo.CanvasBox.__init__(self)

        self._shell = shell
        self._model = model
        self._icons = {}

        self._layout = SnowflakeLayout()
        self.set_layout(self._layout)

        self._icon = CanvasIcon(icon_name=model.get_icon_name(),
                          xo_color=model.get_color(), box_width=80)
        self._icon.connect('activated', self._clicked_cb)
        self._icon.set_tooltip(self._model.get_title())
        self._layout.add_center(self._icon)

    def _update_name(self):
        self.palette.set_primary_text(self._model.get_title())

    def has_buddy_icon(self, key):
        return self._icons.has_key(key)

    def add_buddy_icon(self, key, icon):
        self._icons[key] = icon
        self._layout.add(icon)

    def remove_buddy_icon(self, key):
        icon = self._icons[key]
        self.remove(icon)
        del self._icons[key]

    def _clicked_cb(self, item):
        bundle_id = self._model.get_service_name()
        self._shell.join_activity(bundle_id, self._model.get_id())

class MeshBox(hippo.CanvasBox):
    def __init__(self, shell):
        hippo.CanvasBox.__init__(self, background_color=0xe2e2e2ff)

        self._shell = shell
        self._model = shell.get_model().get_mesh()
        self._buddies = {}
        self._activities = {}
        self._access_points = {}
        self._mesh = None
        self._buddy_to_activity = {}
        self._suspended = True

        self._layout = SpreadLayout()
        self.set_layout(self._layout)

        for buddy_model in self._model.get_buddies():
            self._add_alone_buddy(buddy_model)

        self._model.connect('buddy-added', self._buddy_added_cb)
        self._model.connect('buddy-removed', self._buddy_removed_cb)
        self._model.connect('buddy-moved', self._buddy_moved_cb)

        for activity_model in self._model.get_activities():
            self._add_activity(activity_model)

        self._model.connect('activity-added', self._activity_added_cb)
        self._model.connect('activity-removed', self._activity_removed_cb)

        for ap_model in self._model.get_access_points():
            self._add_access_point(ap_model)

        self._model.connect('access-point-added',
                            self._access_point_added_cb)
        self._model.connect('access-point-removed',
                            self._access_point_removed_cb)

        if self._model.get_mesh():
            self._add_mesh_icon(self._model.get_mesh())

        self._model.connect('mesh-added',
                            self._mesh_added_cb)
        self._model.connect('mesh-removed',
                            self._mesh_removed_cb)

    def _mesh_added_cb(self, model, mesh):
        self._add_mesh_icon(mesh)

    def _mesh_removed_cb(self, model):
        self._remove_mesh()

    def _buddy_added_cb(self, model, buddy_model):
        self._add_alone_buddy(buddy_model)

    def _buddy_removed_cb(self, model, buddy_model):
        self._remove_buddy(buddy_model) 

    def _buddy_moved_cb(self, model, buddy_model, activity_model):
        # Owner doesn't move from the center
        if buddy_model.is_owner():
            return
        self._move_buddy(buddy_model, activity_model)

    def _activity_added_cb(self, model, activity_model):
        self._add_activity(activity_model)

    def _activity_removed_cb(self, model, activity_model):
        self._remove_activity(activity_model) 

    def _access_point_added_cb(self, model, ap_model):
        self._add_access_point(ap_model)

    def _access_point_removed_cb(self, model, ap_model):
        self._remove_access_point(ap_model) 

    def _add_mesh_icon(self, mesh):
        if self._mesh:
            self._remove_mesh()
        if not mesh:
            return
        self._mesh = MeshDeviceView(mesh)
        self._layout.add(self._mesh)

    def _remove_mesh(self):
        if not self._mesh:
            return
        self._layout.remove(self._mesh)
        self._mesh = None

    def _add_alone_buddy(self, buddy_model):
        icon = BuddyIcon(self._shell, buddy_model)
        if buddy_model.is_owner():
            self._layout.add_center(icon)
        else:
            self._layout.add(icon)

        self._buddies[buddy_model.get_key()] = icon

    def _remove_alone_buddy(self, buddy_model):
        icon = self._buddies[buddy_model.get_key()]
        self._layout.remove(icon)
        del self._buddies[buddy_model.get_key()]

    def _remove_buddy(self, buddy_model):
        key = buddy_model.get_key()
        if self._buddies.has_key(key):
            self._remove_alone_buddy(buddy_model)
        else:
            for activity in self._activities.values():
                if activity.has_buddy_icon(key):
                    activity.remove_buddy_icon(key)

    def _move_buddy(self, buddy_model, activity_model):
        key = buddy_model.get_key()

        self._remove_buddy(buddy_model)

        if activity_model == None:
            self._add_alone_buddy(buddy_model)
        else:
            activity = self._activities[activity_model.get_id()]

            icon = BuddyIcon(self._shell, buddy_model)
            activity.add_buddy_icon(buddy_model.get_key(), icon)

    def _add_activity(self, activity_model):
        icon = ActivityView(self._shell, activity_model)
        self._layout.add(icon)

        self._activities[activity_model.get_id()] = icon

    def _remove_activity(self, activity_model):
        icon = self._activities[activity_model.get_id()]
        self._layout.remove(icon)
        del self._activities[activity_model.get_id()]

    def _add_access_point(self, ap_model):
        icon = AccessPointView(ap_model)
        self._layout.add(icon)

        self._access_points[ap_model.get_id()] = icon

    def _remove_access_point(self, ap_model):
        icon = self._access_points[ap_model.get_id()]
        self._layout.remove(icon)
        del self._access_points[ap_model.get_id()]

    def suspend(self):
        if not self._suspended:
            self._suspended = True
            for ap in self._access_points.values():
                ap.props.paused = True

    def resume(self):
        if self._suspended:
            self._suspended = False
            for ap in self._access_points.values():
                ap.props.paused = False