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# -*- coding: utf-8 -*-
# Moovida - Home multimedia server
# Copyright (C) 2006-2009 Fluendo Embedded S.L. (www.fluendo.com).
# All rights reserved.
#
# This file is available under one of two license agreements.
#
# This file is licensed under the GPL version 3.
# See "LICENSE.GPL" in the root of this distribution including a special
# exception to use Moovida with Fluendo's plugins.
#
# The GPL part of Moovida is also available under a commercial licensing
# agreement from Fluendo.
# See "LICENSE.Moovida" in the root directory of this distribution package
# for details on that license.
from elisa.core.media_uri import MediaUri
from elisa.core import common
from elisa.core.utils.i18n import install_translation
from elisa.core.utils import defer
from elisa.core.utils.text import name_to_shortcut
from elisa.core.action import ContextualAction
from elisa.plugins.base.models.file import DirectoryModel
from elisa.plugins.base.models.device import VolumeModel
from elisa.plugins.base.messages.device import NewDeviceDetected, \
DeviceRemoved
from elisa.plugins.poblesec.actions import OpenControllerAction
from elisa.plugins.poblesec.base.preview_list import \
ListItemWidgetWithActions, MenuItemPreviewListController
from elisa.plugins.poblesec.base.list_switcher import ListSwitcherController
from elisa.plugins.poblesec.filesystem import FilesystemController, \
FilesystemViewMode, \
OpenFolderOrPlayFileAction
from elisa.plugins.poblesec.base.preview_list import PreviewListController
import os.path
import platform
from twisted.internet import task
_ = install_translation('poblesec')
HOME_URI = MediaUri({'scheme': 'file', 'path': os.path.expanduser('~')})
class AddRemoveFolderAction(ContextualAction):
"""
Contextual action associated to folders/volumes to add/remove them from the
list of media sources.
"""
def __init__(self, controller, remove_from_model=False):
# remove_from_model == True -> when removed from the media sources, the
# corresponding item will also be removed from the controller's model.
super(AddRemoveFolderAction, self).__init__(controller)
self.remove_from_model = remove_from_model
def _remove_from_model(self, result, item):
self.controller.model.remove(item)
def execute(self, item):
removing = item.is_a_media_source
# The actual logic is delegated to self.controller's add_remove method.
dfr = self.controller.add_remove(item)
if removing and self.remove_from_model:
dfr.addCallback(self._remove_from_model, item)
return dfr
class _ConditionalListItemWidgetWithActions(ListItemWidgetWithActions):
# Do not [create and show|hide and destroy] contextual actions for files.
# FIXME: this is obviously a hack. Consider really hard re-factoring the
# contextual actions in a clean way rather than re-using this.
def _create_and_show_actions(self):
if not isinstance(self.item, (DirectoryModel, VolumeModel)):
return
action = self._contextual_actions[0]
if self.item.is_a_media_source:
action.name = 'remove'
else:
action.name = 'add'
super(_ConditionalListItemWidgetWithActions,
self)._create_and_show_actions()
def _destroy_and_hide_actions(self):
if not isinstance(self.item, (DirectoryModel, VolumeModel)):
return
super(_ConditionalListItemWidgetWithActions,
self)._destroy_and_hide_actions()
class DirectorySettingsController(FilesystemController):
"""
A filesystem controller that adds a contextual action to add/remove
folders/volumes to the list of media sources.
"""
node_widget = _ConditionalListItemWidgetWithActions
def create_actions(self):
default = OpenFolderOrPlayFileAction(self,
'/poblesec/directory_settings')
add_remove = AddRemoveFolderAction(self)
return default, [add_remove]
def add_remove(self, item):
uri = self.item_to_uri(item)
action = self._contextual_actions[0]
media_directories = common.application.media_directories
if item.is_a_media_source:
# Remove the URI from the media sources
for media_type in media_directories.directories:
media_directories.remove_directory(uri, media_type)
media_directories.refresh_directory_list()
item.is_a_media_source = False
action.name = 'add'
self.model[self.model.index(item)] = item
if platform.system() == 'Windows':
path = uri.path
else:
# avoid double /
path = uri.path[1:]
source_uri = MediaUri('media_scanner://localhost/%s/' % path)
dfr = common.application.resource_manager.delete(source_uri)
else:
# Add the URI to the media sources
self._show_add_popup(item, action)
dfr = defer.succeed(None)
return dfr
def _show_add_popup(self, item, action):
main = self.frontend.retrieve_controllers('/poblesec')[0]
title = _('ADD SOURCE')
subtitle = _('What Kind Of Media Does It Contain?')
text = _("Before we add this source, we require you to select what " \
"kind of media it contains. Please select from one of the 3 " \
"available options below. Alternatively select 'Cancel' to " \
"return to source list and continue browsing.")
buttons = [(_('Cancel'), main.hide_popup),
(_('Music'), lambda: self._add_source_to_media_type('music', item, action, main)),
(_('Video'), lambda: self._add_source_to_media_type('video', item, action, main)),
(_('Photos'), lambda: self._add_source_to_media_type('pictures', item, action, main)),
]
main.enqueue_popup(title, subtitle, text, buttons)
def _add_source_to_media_type(self, media_type, item, action, main):
media_directories = common.application.media_directories
uri = self.item_to_uri(item)
media_directories.add_directory(uri, media_type)
media_directories.refresh_directory_list()
item.is_a_media_source = True
action.name = 'remove'
self.model[self.model.index(item)] = item
# Return a deferred that we are loosing anyway.
return main.hide_popup()
class DirectorySettingsPreviewListController(DirectorySettingsController,
MenuItemPreviewListController):
view_mode = FilesystemViewMode
def get_shortcut_for_item(self, item):
return name_to_shortcut(item.name)
class ThisComputerBrowserController(DirectorySettingsController):
def populate_model(self):
model = []
media_directories = common.application.media_directories
# Home folder
home = DirectoryModel()
home.name = _('Home')
home.uri = HOME_URI
home.is_a_media_source = media_directories.is_a_media_source(home.uri)
model.append(home)
# Fixed devices
def get_devices():
def get_removable(all_devices):
uri = MediaUri('volumes://localhost/?filter=removable')
devices, dfr = common.application.resource_manager.get(uri)
return dfr
def filter_out_removable(removable_devices, all_devices):
# FIXME: make this asynchronous using task.coiterate
for device in removable_devices.devices:
try:
all_devices.devices.remove(device)
except:
pass
uri = MediaUri('volumes://localhost/?filter=file')
all_devices, dfr = common.application.resource_manager.get(uri)
dfr.addCallback(get_removable)
dfr.addCallback(filter_out_removable, all_devices)
dfr.addCallback(lambda result: all_devices)
return dfr
def add_volumes(devices, model):
# FIXME: make this asynchronous using task.coiterate
for device in devices.devices:
if isinstance(device, VolumeModel) and \
device.mount_point is not None:
uri = self.item_to_uri(device)
device.is_a_media_source = \
media_directories.is_a_media_source(uri)
model.append(device)
def error_getting_devices(failure):
self.warning('Failed to retrieve the list of devices: %s.' % \
failure)
return failure
def connect_to_bus(result):
bus = common.application.bus
bus.register(self._device_added_cb, NewDeviceDetected)
bus.register(self._device_removed_cb, DeviceRemoved)
dfr = get_devices()
dfr.addCallbacks(add_volumes, error_getting_devices,
callbackArgs=(model,))
dfr.addCallback(connect_to_bus)
dfr.addCallback(lambda result: model)
return dfr
def _device_added_cb(self, message, sender):
volume = message.model
if volume.protocol == 'file' and volume.mount_point is not None:
uri = self.item_to_uri(volume)
volume.is_a_media_source = \
common.application.media_directories.is_a_media_source(uri)
self.model.append(volume)
def _device_removed_cb(self, message, sender):
for volume in self.model:
if isinstance(volume, VolumeModel) and volume.udi == message.udi:
self.model.remove(volume)
break
def item_activated(self, item):
if isinstance(item, VolumeModel):
uri = MediaUri({'scheme': 'file', 'path': item.mount_point})
else:
uri = item.uri
action = OpenControllerAction(self, '/poblesec/directory_settings')
return action.open_controller(action.path, item.name, uri=uri,
media_type=self.media_type)
class ThisComputerPreviewListController(ThisComputerBrowserController,
MenuItemPreviewListController):
view_mode = FilesystemViewMode
fastscroller_enabled = False
def get_shortcut_for_item(self, item):
return name_to_shortcut(item.name)
class MediaSourcesController(DirectorySettingsController):
def populate_model(self):
model = []
media_directories = common.application.media_directories
media_directories.refresh_directory_list(self.media_type)
if self.media_type is None:
media_types = ['music', 'video', 'pictures']
else:
media_types = [self.media_type]
def iterate_sources(sources, model):
for source in sources:
# Do not add twice the same source.
already_listed = False
for item in model:
if item.uri.path == source:
already_listed = True
break
if not already_listed:
item = DirectoryModel()
item.uri = MediaUri({'scheme': 'file', 'path': source})
item.name = item.uri.label
item.is_a_media_source = True
model.append(item)
yield None
def iterate_media_types(media_types, model):
for media_type in media_types:
sources = media_directories.get_directories(media_type)
yield task.coiterate(iterate_sources(sources, model))
dfr = task.coiterate(iterate_media_types(media_types, model))
dfr.addCallback(lambda result: model)
return dfr
def create_actions(self):
default = OpenFolderOrPlayFileAction(self, '/poblesec/filesystem')
add_remove = AddRemoveFolderAction(self, remove_from_model=True)
return default, [add_remove]
class MediaSourcesPreviewListController(MediaSourcesController,
MenuItemPreviewListController):
view_mode = FilesystemViewMode
fastscroller_enabled = False
def get_shortcut_for_item(self, item):
return name_to_shortcut(item.name)
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