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from gi.repository import GObject, Gtk, Gio
from typing import Optional
from gfeeds.confManager import ConfManager
from gfeeds.feed import Feed
class FeedStore(Gtk.FilterListModel):
__gsignals__ = {
'item-removed': (
GObject.SignalFlags.RUN_LAST,
None,
(GObject.TYPE_PYOBJECT,)
)
}
def __init__(self):
self.sorter = Gtk.CustomSorter()
self.sorter.set_sort_func(self._sort_func)
self.filter = Gtk.CustomFilter()
self.filter.set_filter_func(self._filter_func)
self.list_store = Gio.ListStore(item_type=Feed)
self.sort_store = Gtk.SortListModel(
model=self.list_store, sorter=self.sorter
)
self.confman = ConfManager()
self.confman.connect(
'gfeeds_show_empty_feeds_changed',
lambda *_: self.invalidate_filter()
)
# Hiding read articles can result in empty feeds which should
# be hidden
self.confman.connect(
'gfeeds_show_read_changed',
lambda *_: self.invalidate_filter()
)
super().__init__(model=self.sort_store, filter=self.filter)
def _sort_func(self, feed1: Feed, feed2: Feed, *_) -> int:
return -1 if feed1.title.lower() < feed2.title.lower() else 1
def invalidate_sort(self):
self.sorter.set_sort_func(self._sort_func)
def _filter_func(self, feed: Feed, *_) -> bool:
res = True
if not self.confman.nconf.show_empty_feeds:
if self.confman.nconf.show_read_items:
res = res and len(feed.items) > 0
else:
res = res and feed.unread_count > 0
return res
def invalidate_filter(self):
self.filter.set_filter_func(self._filter_func)
def empty(self):
return self.list_store.remove_all()
def add_feed(self, n_feed: Feed):
self.list_store.append(n_feed)
n_feed.connect(
'empty_changed', lambda *_: self.invalidate_filter()
)
def remove_by_index(self, index: int):
self.emit('item-removed', self.list_store[index])
self.list_store.remove(index)
def remove_feed(self, to_rm: Feed):
for i, feed in enumerate(self.list_store):
if feed.title == to_rm.title and feed.rss_link == to_rm.rss_link:
self.remove_by_index(i)
return
def get_feed(self, identifier: str) -> Optional[Feed]:
for f in self.list_store:
if f.rss_link + f.title == identifier:
return f
return None
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