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server.py

# coding: UTF-8
"""
Copyright (c) 2008-2010 Marian Tietz
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:

1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
"""

import gtk
import logging
from gettext import gettext as _

from .. import com
from .. import gui

widgets = None
serverSelection = None

RESPONSE_CONNECT = 3


def setup():
      global widgets, serverSelection

      if widgets:
            return

      widgets = gui.builder.load_dialog("server")

      sigdic = {  "addButton_clicked_cb":
                              lambda w: openAddDialog(),
                        "editButton_clicked_cb":
                              lambda w: openEditDialog(),
                        "deleteButton_clicked_cb":
                              lambda w: openDeleteDialog(),
                        "serverRenderer_edited_cb":
                              serverNameEdited
                   }

      widgets.connect_signals(sigdic)

      # enable multiple selection
      serverSelection = widgets.get_object("serverList").get_selection()
      serverSelection.set_mode(gtk.SELECTION_MULTIPLE)


def addServer(name):
      """ Add server from maki to the list store """
      widgets.get_object("serverStore").append([name])


def retrieveServerlist():
      """ Fetch server list from maki and get
            infos about every server.
      """
      widgets.get_object("serverStore").clear()

      servers = com.sushi.server_list("","")

      if servers:
            for server in servers:
                  addServer(server)


def serverNameEdited(renderer, path, newText):
      """ User edited column in serverView """

      try:
            oldText = widgets.get_object("serverStore")[path][0]
      except IndexError:
            return

      com.sushi.server_rename(oldText, newText)

      # at last, update the list from maki (caching would be better..)
      retrieveServerlist()


def run(callback):
      dialog = widgets.get_object("serverDialog")

      retrieveServerlist()

      dialog.connect("response", dialog_response_cb, callback)
      dialog.show_all()


def createServer(serverName, data):
      """ Create a server in maki. """
      for (k,v) in data.items():
            com.sushi.server_set(serverName, "server", k, v)


def deleteServer(servername):
      """ Remove server from Serverlist widget
            and delete server in maki.
      """
      serverList = widgets.get_object("serverStore")

      for row in serverList:
            if row[0] == servername:
                  serverList.remove(row.iter)
                  com.sushi.server_remove(servername, "", "")


def openAddDialog():
      gui.dialogs.show_dialog("addServer", add_dialog_cb)


def openEditDialog():
      view = widgets.get_object("serverList")
      serverList = view.get_model()

      path = view.get_cursor()[0]

      servername = None

      if not path:
            d = gui.builder.information_dialog(
                                                _("No server selected."),
                                                _("You must select a server to edit it."))
            d.connect("response", lambda w,i: w.destroy())
            d.show_all()
            return

      else:
            servername = serverList[path][0]

      data = gui.dialogs.show_dialog("editServer", servername)

      if not servername:
            logging.error("openEditDialog: Error in retrieving the servername")
            return

      if data:
            retrieveServerlist()


def openDeleteDialog():
      view = widgets.get_object("serverList")

      path = view.get_cursor()[0]
      servername = None

      if not path:
            d = gui.builder.information_dialog(
                                                _("No server selected."),
                                                _("You must select a server to delete it."))
            d.connect("response", lambda w,i: w.destroy())
            d.show_all()
            return

      else:
            servername = view.get_model()[path][0]

      if not servername:
            gui.mgmt.show_error_dialog(
                  title=_("Error while retrieving server name."),
                  message=_("There was an error while retrieving the server "
                                "name.\nAre you connected to maki?"))
            return

      gui.dialogs.show_dialog("deleteServer", servername, delete_dialog_cb)


def dialog_response_cb(dialog, response_id, callback):
      if response_id == RESPONSE_CONNECT:
            # get the selected server(s)

            serverList = widgets.get_object("serverStore")
            paths = serverSelection.get_selected_rows()[1]

            if not paths:
                  return

            toConnect = []
            for path in paths:
                  toConnect.append(serverList[path][0])

            callback(toConnect)

      else:
            callback(None)

      dialog.hide()


def add_dialog_cb():
      """ indicates, server was added """
      retrieveServerlist()


def delete_dialog_cb(servername):
      """ indicates that the server can be deleted """
      deleteServer(servername)



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