view frontends/src/primitivus/profile_manager.py @ 2109:85f3e12e984d

core (memory/cache): file caching handling, first draft: instead of having file caching handled individually by plugins, a generic module has been added in memory. - Cache can be global or associated to a profile. In the later case, client.cache can be used. - Cache are managed with unique ids (which can be any unique unicode, hash uuid, or something else). - To know if a file is in cache, getFilePath is used: if the file is in cache, its absolute path is returned, else None is returned. - To cache a file, cacheData is used with at list the source of cache (most of time plugin import name), and unique id. The method return file opened in binary writing mode (so cacheData can - and should - be used with "with" statement). - 2 files will be created: a metadata file (named after the unique id), and the actual file. - each file has a end of life time, after it, the cache is invalidated and the file must be requested again.
author Goffi <goffi@goffi.org>
date Thu, 05 Jan 2017 20:23:38 +0100
parents 2daf7b4c6756
children 1d3f73e065e1
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#!/usr/bin/env python2
# -*- coding: utf-8 -*-

# Primitivus: a SAT frontend
# Copyright (C) 2009-2016 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.i18n import _
from sat.core import log as logging
log = logging.getLogger(__name__)
from sat_frontends.quick_frontend.quick_profile_manager import QuickProfileManager
from sat_frontends.primitivus.constants import Const as C
from sat_frontends.primitivus.keys import action_key_map as a_key
from urwid_satext import sat_widgets
import urwid


class ProfileManager(QuickProfileManager, urwid.WidgetWrap):

    def __init__(self, host, autoconnect=None):
        QuickProfileManager.__init__(self, host, autoconnect)

        #login & password box must be created before list because of onProfileChange
        self.login_wid = sat_widgets.AdvancedEdit(_('Login:'), align='center')
        self.pass_wid = sat_widgets.Password(_('Password:'), align='center')

        style = ['no_first_select']
        profiles = host.bridge.getProfilesList()
        profiles.sort()
        self.list_profile = sat_widgets.List(profiles, style=style, align='center', on_change=self.onProfileChange)

        #new & delete buttons
        buttons = [urwid.Button(_("New"), self.onNewProfile),
                  urwid.Button(_("Delete"), self.onDeleteProfile)]
        buttons_flow = urwid.GridFlow(buttons, max([len(button.get_label()) for button in buttons])+4, 1, 1, 'center')

        #second part: login information:
        divider = urwid.Divider('-')

        #connect button
        connect_button = sat_widgets.CustomButton(_("Connect"), self.onConnectProfiles, align='center')

        #we now build the widget
        list_walker = urwid.SimpleFocusListWalker([buttons_flow,self.list_profile, divider, self.login_wid, self.pass_wid, connect_button])
        frame_body = urwid.ListBox(list_walker)
        frame = urwid.Frame(frame_body,urwid.AttrMap(urwid.Text(_("Profile Manager"),align='center'),'title'))
        self.main_widget = urwid.LineBox(frame)
        urwid.WidgetWrap.__init__(self, self.main_widget)

        self.go(autoconnect)


    def keypress(self, size, key):
        if key == a_key['APP_QUIT']:
            self.host.onExit()
            raise urwid.ExitMainLoop()
        elif key in (a_key['FOCUS_UP'], a_key['FOCUS_DOWN']):
            focus_diff = 1 if key==a_key['FOCUS_DOWN'] else -1
            list_box = self.main_widget.base_widget.body
            current_focus = list_box.body.get_focus()[1]
            if current_focus is None:
                return
            while True:
                current_focus += focus_diff
                if current_focus < 0 or current_focus >= len(list_box.body):
                    break
                if list_box.body[current_focus].selectable():
                    list_box.set_focus(current_focus, 'above' if focus_diff == 1 else 'below')
                    list_box._invalidate()
                    return
        return super(ProfileManager, self).keypress(size, key)

    def cancelDialog(self, button):
        self.host.removePopUp()

    def newProfile(self, button, edit):
        """Create the profile"""
        name = edit.get_edit_text()
        self.host.bridge.asyncCreateProfile(name, callback=lambda: self.newProfileCreated(name), errback=self.profileCreationFailure)

    def newProfileCreated(self, profile):
        # new profile will be selected, and a selected profile assume the session is started
        self.host.bridge.profileStartSession('', profile, callback=lambda dummy: self.newProfileSessionStarted(profile), errback=self.profileCreationFailure)

    def newProfileSessionStarted(self, profile):
        self.host.removePopUp()
        self.refillProfiles()
        self.list_profile.selectValue(profile)
        self.current.profile=profile
        self.getConnectionParams(profile)
        self.host.redraw()

    def profileCreationFailure(self, reason):
        self.host.removePopUp()
        message = self._getErrorMessage(reason)
        self.host.alert(_("Can't create profile"), message)

    def deleteProfile(self, button):
        self._deleteProfile()
        self.host.removePopUp()

    def onNewProfile(self, e):
        pop_up_widget = sat_widgets.InputDialog(_("New profile"), _("Please enter a new profile name"), cancel_cb=self.cancelDialog, ok_cb=self.newProfile)
        self.host.showPopUp(pop_up_widget)

    def onDeleteProfile(self, e):
        if self.current.profile:
            pop_up_widget = sat_widgets.ConfirmDialog(_("Are you sure you want to delete the profile {} ?").format(self.current.profile), no_cb=self.cancelDialog, yes_cb=self.deleteProfile)
            self.host.showPopUp(pop_up_widget)

    def onConnectProfiles(self, button):
        """Connect the profiles and start the main widget

        @param button: the connect button
        """
        self._onConnectProfiles()

    def resetFields(self):
        """Set profile to None, and reset fields"""
        super(ProfileManager, self).resetFields()
        self.list_profile.unselectAll(invisible=True)

    def setProfiles(self, profiles):
        """Update the list of profiles"""
        self.list_profile.changeValues(profiles)
        self.host.redraw()

    def getProfiles(self):
        return self.list_profile.getSelectedValues()

    def getJID(self):
        return self.login_wid.get_edit_text()

    def getPassword(self):
        return self.pass_wid.get_edit_text()

    def setJID(self, jid_):
        self.login_wid.set_edit_text(jid_)
        self.current.login = jid_
        self.host.redraw() # FIXME: redraw should be avoided

    def setPassword(self, password):
        self.pass_wid.set_edit_text(password)
        self.current.password = password
        self.host.redraw()

    def onProfileChange(self, list_wid, widget=None, selected=None):
        """This is called when a profile is selected in the profile list.

        @param list_wid: the List widget who sent the event
        """
        self.updateConnectionParams()
        focused = list_wid.focus
        selected = focused.getState() if focused is not None else False
        if not selected: # profile was just unselected
            return
        focused.setState(False, invisible=True) # we don't want the widget to be selected until we are sure we can access it
        def authenticate_cb(data, cb_id, profile):
            if C.bool(data.pop('validated', C.BOOL_FALSE)):
                self.current.profile = profile
                focused.setState(True, invisible=True)
                self.getConnectionParams(profile)
                self.host.redraw()
            self.host.actionManager(data, callback=authenticate_cb, profile=profile)

        self.host.launchAction(C.AUTHENTICATE_PROFILE_ID, callback=authenticate_cb, profile=focused.text)