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1.4 KiB

import urwid
class TUI(urwid.Frame):
@classmethod
def create(cls):
tui = cls()
palette = [('header', 'white', 'black'), ('reveal focus', 'black', 'dark cyan', 'standout')]
loop = urwid.MainLoop(
tui,
palette,
event_loop=urwid.AsyncioEventLoop(),
)
tui.loop = loop
return tui
def __init__(self):
self.loop = None
self.items = [urwid.Text("Feed# " + str(i)) for i in range(0, 15)]
walker = urwid.SimpleListWalker([urwid.AttrMap(item, None, 'reveal focus') for item in self.items])
self.lb = urwid.ListBox(walker)
self.body = self.lb
super().__init__(self.body)
def run(self):
self.loop.run()
self.executor.shutdown(wait=False)
def keypress(self, size, key):
if key in ("j", "down"):
item_size = len(self.lb.body)
focus_widget, idx = self.lb.get_focus()
if idx < item_size - 1:
idx = idx + 1
self.lb.set_focus(idx)
elif key in ("k", "up"):
focus_widget, idx = self.lb.get_focus()
if idx > 0:
idx = idx - 1
self.lb.set_focus(idx)
elif key == "a":
self.lb.body.append(urwid.AttrMap(urwid.Text("XXX"), None, 'reveal focus'))
else:
self.lb.keypress(size, key)
del self.lb.body[3]
tui = TUI.create()
tui.run()