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from typing import List, Union
from gi.repository import GObject, Gtk, Gio
from gfeeds.confManager import ConfManager
from gfeeds.feed import Feed
class TagObj(GObject.Object):
__gsignals__ = {
'empty_changed': (
GObject.SignalFlags.RUN_FIRST, GObject.TYPE_NONE, ()
)
}
def __init__(self, name: str):
super().__init__()
self.name = name
self.__unread_count = 0
@GObject.Property(type=int)
def unread_count(self) -> int: # type: ignore
return self.__unread_count
@unread_count.setter
def unread_count(self, c: int):
self.__unread_count = c
def increment_unread_count(self, v: int):
prev = self.unread_count
self.unread_count += v
if self.__unread_count == 0 and prev > 0:
self.emit('empty_changed')
elif self.__unread_count > 0 and prev == 0:
self.emit('empty_changed')
class TagStore(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=TagObj)
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)
self.populate()
def populate(self):
self.empty()
for tag in self.confman.nconf.tags:
n_tag = TagObj(tag)
self.list_store.append(n_tag)
n_tag.connect(
'empty_changed', lambda *_: self.invalidate_filter()
)
def _sort_func(self, t1: TagObj, t2: TagObj, *_) -> int:
return -1 if t1.name.lower() < t2.name.lower() else 1
def empty(self):
return self.list_store.remove_all()
def add_tag(
self, n_tag_: Union[TagObj, str], target_feeds: List[Feed] = []
):
n_tag = TagObj(n_tag_) if isinstance(n_tag_, str) else n_tag_
existing_tag = self.get_tag(n_tag.name)
if existing_tag:
n_tag = existing_tag
else:
self.list_store.append(n_tag)
target_feed_urls = []
for feed in target_feeds:
target_feed_urls.append(feed.rss_link)
if n_tag not in feed.tags:
feed.tags.append(n_tag)
n_tag.unread_count += feed.unread_count
n_tag.connect(
'empty_changed', lambda *_: self.invalidate_filter()
)
self.confman.add_tag(n_tag.name, target_feed_urls)
def remove_by_index(self, index: int):
to_rm = self.list_store[index]
self.emit('item-removed', to_rm)
self.list_store.remove(index)
self.confman.delete_tag(to_rm.name)
def remove_tag(self, tag: str):
for i, tag_o in enumerate(self.list_store):
if tag == tag_o.name:
self.remove_by_index(i)
return
def _filter_func(self, item: TagObj, *_) -> bool:
if not self.confman.nconf.show_empty_feeds and \
not self.confman.nconf.show_read_items:
return item.unread_count > 0
return True
def invalidate_filter(self):
self.filter.set_filter_func(self._filter_func)
def get_tag(self, tag: str):
for t in self.list_store:
if t.name == tag:
return t
return None
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