class SnapInfoView(WidgetWrap):
# This is mostly like a Pile but it tries to be a bit smart about
# how to distribute space between the description and channel list
# (which can both be arbitrarily long or short). If both are long,
# the channel list is given a third of the space. If there is
# space for both, they are packed into the upper part of the view.
def __init__(self, parent, snap, cur_channel):
self.parent = parent
self.snap = snap
self.channels = []
self.needs_focus = True
self.description = Text(snap.description.replace('\r', '').strip())
self.lb_description = ListBox([self.description])
radio_group = []
for csi in snap.channels:
notes = '-'
if csi.confinement != "strict":
notes = csi.confinement
btn = StarRadioButton(radio_group,
"{}:".format(csi.channel_name),
state=csi.channel_name == cur_channel,
on_state_change=self.state_change,
user_data=SnapSelection(
channel=csi.channel_name,
is_classic=csi.confinement == "classic"))
self.channels.append(
Color.menu_button(
TableRow([
btn,
Text(csi.version),
Text("({})".format(csi.revision)),
Text(humanize_size(csi.size)),
Text(notes),
])))
self.lb_channels = NoTabCyclingTableListBox(self.channels)
title = Columns([
Text(snap.name),
('pack',
Text(_("Publisher: {}").format(snap.publisher), align='right')),
],
dividechars=1)
contents = [
('pack', title),
('pack', Text("")),
('pack', Text(snap.summary)),
('pack', Text("")),
self.lb_description, # overwritten in render()
('pack', Text("")),
('weight', 1, self.lb_channels),
]
self.description_index = contents.index(self.lb_description)
self.pile = Pile(contents)
super().__init__(self.pile)
def state_change(self, sender, state, selection):
if state:
self.parent.snap_boxes[self.snap.name].set_state(True)
self.parent.to_install[self.snap.name] = selection
def render(self, size, focus):
maxcol, maxrow = size
rows_available = maxrow
pack_option = self.pile.options('pack')
for w, o in self.pile.contents:
if o == pack_option:
rows_available -= w.rows((maxcol, ), focus)
rows_wanted_description = self.description.rows((maxcol, ), False)
rows_wanted_channels = len(self.channels)
if rows_wanted_channels + rows_wanted_description <= rows_available:
description_rows = rows_wanted_description
else:
if rows_wanted_description < 2 * rows_available / 3:
description_rows = rows_wanted_description
else:
channel_rows = min(rows_wanted_channels,
int(rows_available / 3))
description_rows = rows_available - channel_rows
self.pile.contents[self.description_index] = (self.lb_description,
self.pile.options(
'given',
description_rows))
if description_rows >= rows_wanted_description:
self.lb_description.base_widget._selectable = False
else:
self.lb_description.base_widget._selectable = True
if self.needs_focus:
self.pile._select_first_selectable()
self.needs_focus = False
return self.pile.render(size, focus)
class SnapInfoView(WidgetWrap):
# This is mostly like a Pile but it tries to be a bit smart about
# how to distribute space between the description and channel list
# (which can both be arbitrarily long or short). If both are long,
# the channel list is given a third of the space. If there is
# space for both, they are packed into the upper part of the view.
def __init__(self, parent, snap, cur_channel):
self.parent = parent
self.snap = snap
self.needs_focus = True
self.description = Text(snap.description.replace('\r', '').strip())
self.lb_description = ListBox([self.description])
latest_update = datetime.datetime.min
radio_group = []
channel_rows = []
for csi in snap.channels:
latest_update = max(latest_update, csi.released_at)
btn = StarRadioButton(radio_group,
csi.channel_name,
state=csi.channel_name == cur_channel,
on_state_change=self.state_change,
user_data=SnapSelection(
channel=csi.channel_name,
is_classic=csi.confinement == "classic"))
channel_rows.append(
Color.menu_button(
TableRow([
btn,
Text(csi.version),
Text("(" + csi.revision + ")"),
Text(humanize_size(csi.size)),
Text(format_datetime(csi.released_at)),
Text(csi.confinement),
])))
first_info_row = TableRow([
(3, Text([
('info_minor', "LICENSE: "),
snap.license,
],
wrap='clip')),
(3,
Text([
('info_minor', "LAST UPDATED: "),
format_datetime(latest_update),
])),
])
heading_row = Color.info_minor(
TableRow([
Text("CHANNEL"),
(2, Text("VERSION")),
Text("SIZE"),
Text("PUBLISHED"),
Text("CONFINEMENT"),
]))
colspecs = {
1: ColSpec(can_shrink=True),
}
info_table = TablePile([
first_info_row,
TableRow([Text("")]),
heading_row,
],
spacing=2,
colspecs=colspecs)
self.lb_channels = NoTabCyclingTableListBox(channel_rows,
spacing=2,
colspecs=colspecs)
info_table.bind(self.lb_channels)
self.info_padding = Padding.pull_1(info_table)
publisher = [('info_minor header', "by: "), snap.publisher]
if snap.verified:
publisher.append(('verified header', ' \N{check mark}'))
self.title = Columns([
Text(snap.name),
('pack', Text(publisher, align='right')),
],
dividechars=1)
contents = [
('pack', Text(snap.summary)),
('pack', Text("")),
self.lb_description, # overwritten in render()
('pack', Text("")),
('pack', self.info_padding),
('pack', Text("")),
('weight', 1, self.lb_channels),
]
self.description_index = contents.index(self.lb_description)
self.pile = Pile(contents)
super().__init__(self.pile)
def state_change(self, sender, state, selection):
if state:
self.parent.snap_boxes[self.snap.name].set_state(True)
self.parent.to_install[self.snap.name] = selection
def render(self, size, focus):
maxcol, maxrow = size
rows_available = maxrow
pack_option = self.pile.options('pack')
for w, o in self.pile.contents:
if o == pack_option:
rows_available -= w.rows((maxcol, ), focus)
rows_wanted_description = self.description.rows((maxcol - 1, ), False)
rows_wanted_channels = 0
for row in self.lb_channels._w.original_widget.body:
rows_wanted_channels += row.rows((maxcol, ), False)
log.debug('rows_available %s', rows_available)
log.debug('rows_wanted_description %s rows_wanted_channels %s',
rows_wanted_description, rows_wanted_channels)
if rows_wanted_channels + rows_wanted_description <= rows_available:
description_rows = rows_wanted_description
channel_rows = rows_wanted_channels
else:
if rows_wanted_description < 2 * rows_available / 3:
description_rows = rows_wanted_description
channel_rows = rows_available - description_rows
else:
channel_rows = max(
min(rows_wanted_channels, int(rows_available / 3)), 3)
log.debug('channel_rows %s', channel_rows)
description_rows = rows_available - channel_rows
self.pile.contents[self.description_index] = (self.lb_description,
self.pile.options(
'given',
description_rows))
if description_rows >= rows_wanted_description:
self.lb_description.base_widget._selectable = False
else:
self.lb_description.base_widget._selectable = True
if channel_rows >= rows_wanted_channels:
self.info_padding.right = 0
else:
self.info_padding.right = 1
if self.needs_focus:
self.pile._select_first_selectable()
self.needs_focus = False
return self.pile.render(size, focus)