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# Copyright (C) 2009, Tomeu Vizoso
#
# 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 logging
import json
from gi.repository import GObject
from gi.repository import Gtk
from gettext import gettext as _
from sugar3.graphics.xocolor import XoColor
from sugar3.graphics import style
from sugar3 import util
from jarabe.journal import model
from jarabe.journal import misc
DS_DBUS_SERVICE = 'org.laptop.sugar.DataStore'
DS_DBUS_INTERFACE = 'org.laptop.sugar.DataStore'
DS_DBUS_PATH = '/org/laptop/sugar/DataStore'
class ListModel(GObject.GObject, Gtk.TreeModel, Gtk.TreeDragSource):
__gtype_name__ = 'JournalListModel'
__gsignals__ = {
'ready': (GObject.SignalFlags.RUN_FIRST, None, ([])),
'progress': (GObject.SignalFlags.RUN_FIRST, None, ([])),
}
COLUMN_UID = 0
COLUMN_FAVORITE = 1
COLUMN_ICON = 2
COLUMN_ICON_COLOR = 3
COLUMN_TITLE = 4
COLUMN_TIMESTAMP = 5
COLUMN_CREATION_TIME = 6
COLUMN_FILESIZE = 7
COLUMN_PROGRESS = 8
COLUMN_BUDDY_1 = 9
COLUMN_BUDDY_2 = 10
COLUMN_BUDDY_3 = 11
_COLUMN_TYPES = {
COLUMN_UID: str,
COLUMN_FAVORITE: bool,
COLUMN_ICON: str,
COLUMN_ICON_COLOR: object,
COLUMN_TITLE: str,
COLUMN_TIMESTAMP: str,
COLUMN_CREATION_TIME: str,
COLUMN_FILESIZE: str,
COLUMN_PROGRESS: int,
COLUMN_BUDDY_1: object,
COLUMN_BUDDY_3: object,
COLUMN_BUDDY_2: object,
}
_PAGE_SIZE = 10
def __init__(self, query):
GObject.GObject.__init__(self)
self._last_requested_index = None
self._cached_row = None
self._result_set = model.find(query, ListModel._PAGE_SIZE)
self._temp_drag_file_path = None
# HACK: The view will tell us that it is resizing so the model can
# avoid hitting D-Bus and disk.
self.view_is_resizing = False
self._result_set.ready.connect(self.__result_set_ready_cb)
self._result_set.progress.connect(self.__result_set_progress_cb)
def __result_set_ready_cb(self, **kwargs):
self.emit('ready')
def __result_set_progress_cb(self, **kwargs):
self.emit('progress')
def setup(self):
self._result_set.setup()
def stop(self):
self._result_set.stop()
def get_metadata(self, path):
return model.get(self[path][ListModel.COLUMN_UID])
def do_get_n_columns(self):
return len(ListModel._COLUMN_TYPES)
def do_get_column_type(self, index):
return ListModel._COLUMN_TYPES[index]
def do_iter_n_children(self, iterator):
if iterator is None:
return self._result_set.length
else:
return 0
def do_get_value(self, iterator, column):
if self.view_is_resizing:
return None
index = iterator.user_data
if index == self._last_requested_index:
return self._cached_row[column]
if index >= self._result_set.length:
return None
self._result_set.seek(index)
metadata = self._result_set.read()
self._last_requested_index = index
self._cached_row = []
self._cached_row.append(metadata['uid'])
self._cached_row.append(metadata.get('keep', '0') == '1')
self._cached_row.append(misc.get_icon_name(metadata))
if misc.is_activity_bundle(metadata):
xo_color = XoColor('%s,%s' % (style.COLOR_BUTTON_GREY.get_svg(),
style.COLOR_TRANSPARENT.get_svg()))
else:
xo_color = misc.get_icon_color(metadata)
self._cached_row.append(xo_color)
title = GObject.markup_escape_text(metadata.get('title',
_('Untitled')))
self._cached_row.append('<b>%s</b>' % (title, ))
try:
timestamp = float(metadata.get('timestamp', 0))
except (TypeError, ValueError):
timestamp_content = _('Unknown')
else:
timestamp_content = util.timestamp_to_elapsed_string(timestamp)
self._cached_row.append(timestamp_content)
try:
creation_time = float(metadata.get('creation_time'))
except (TypeError, ValueError):
self._cached_row.append(_('Unknown'))
else:
self._cached_row.append(
util.timestamp_to_elapsed_string(float(creation_time)))
try:
size = int(metadata.get('filesize'))
except (TypeError, ValueError):
size = None
self._cached_row.append(util.format_size(size))
try:
progress = int(float(metadata.get('progress', 100)))
except (TypeError, ValueError):
progress = 100
self._cached_row.append(progress)
buddies = []
if metadata.get('buddies'):
try:
buddies = json.loads(metadata['buddies']).values()
except json.decoder.JSONDecodeError, exception:
logging.warning('Cannot decode buddies for %r: %s',
metadata['uid'], exception)
if not isinstance(buddies, list):
logging.warning('Content of buddies for %r is not a list: %r',
metadata['uid'], buddies)
buddies = []
for n_ in xrange(0, 3):
if buddies:
try:
nick, color = buddies.pop(0)
except (AttributeError, ValueError), exception:
logging.warning('Malformed buddies for %r: %s',
metadata['uid'], exception)
else:
self._cached_row.append((nick, XoColor(color)))
continue
self._cached_row.append(None)
return self._cached_row[column]
def do_iter_nth_child(self, parent_iter, n):
return (False, None)
def do_get_path(self, iterator):
treepath = Gtk.TreePath((iterator.user_data,))
return treepath
def do_get_iter(self, path):
idx = path.get_indices()[0]
iterator = Gtk.TreeIter()
iterator.user_data = idx
return (True, iterator)
def do_iter_next(self, iterator):
idx = iterator.user_data + 1
if idx >= self._result_set.length:
iterator.stamp = -1
return (False, iterator)
else:
iterator.user_data = idx
return (True, iterator)
def do_get_flags(self):
return Gtk.TreeModelFlags.ITERS_PERSIST | Gtk.TreeModelFlags.LIST_ONLY
def do_iter_children(self, iterator):
return (False, iterator)
def do_iter_has_child(self, iterator):
return False
def do_iter_parent(self, iterator):
return (False, Gtk.TreeIter())
def do_drag_data_get(self, path, selection):
uid = self[path][ListModel.COLUMN_UID]
target_atom = selection.get_target()
target_name = target_atom.name()
if target_name == 'text/uri-list':
# Get hold of a reference so the temp file doesn't get deleted
self._temp_drag_file_path = model.get_file(uid)
logging.debug('putting %r in selection', self._temp_drag_file_path)
selection.set(target_atom, 8, self._temp_drag_file_path)
return True
elif target_name == 'journal-object-id':
# uid is unicode but Gtk.SelectionData.set() needs str
selection.set(target_atom, 8, str(uid))
return True
return False
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