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from gi.repository import Gtk
from gfeeds.confManager import ConfManager
from gfeeds.feeds_manager import FeedsManager
from gfeeds.articles_listview import ArticlesListView, ArticlesListBox
class LoadingRevealer(Gtk.Revealer):
def __init__(self):
super().__init__(
transition_type=Gtk.RevealerTransitionType.CROSSFADE,
reveal_child=False, vexpand=False, hexpand=True,
valign=Gtk.Align.START, halign=Gtk.Align.FILL
)
self.progress_bar = Gtk.ProgressBar(hexpand=True, vexpand=False)
self.progress_bar.get_style_context().add_class('osd')
self.set_child(self.progress_bar)
def set_running(self, state: bool):
self.set_reveal_child(state)
def set_progress(self, progress: float):
'''progress: float between 0.0 and 1.0'''
self.progress_bar.set_fraction(progress)
class GFeedsSidebar(Gtk.Overlay):
__gtype_name__ = 'GFeedsSidebar'
def __init__(self):
super().__init__()
self.confman = ConfManager()
self.feedman = FeedsManager()
self.listview_sw = (
ArticlesListView()
if self.confman.nconf.use_experimental_listview
else ArticlesListBox()
)
self.empty = self.listview_sw.empty
self.populate = self.listview_sw.populate
self.loading_revealer = LoadingRevealer()
self.set_child(self.listview_sw)
self.add_overlay(self.loading_revealer)
self.feedman.connect(
'feedmanager_refresh_start',
self.on_refresh_start
)
self.feedman.connect(
'feedmanager_refresh_end',
self.on_refresh_end
)
self.feedman.connect(
'feedmanager_feeds_loaded_changed',
self.on_feeds_loaded_changed
)
def on_feeds_loaded_changed(self, _, progress: float):
self.loading_revealer.set_progress(progress)
def on_refresh_start(self, *_):
self.loading_revealer.set_running(True)
def on_refresh_end(self, *_):
self.listview_sw.all_items_changed()
self.loading_revealer.set_running(False)
def set_search(self, search_term):
self.listview_sw.set_search_term(search_term)
def select_next_article(self, *_):
self.listview_sw.select_next()
def select_prev_article(self, *_):
self.listview_sw.select_prev()
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