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Support pub-sub of monitor's symbol selection

kivy_mainline_and_py3.8
Tyler Goodlet 2018-12-30 14:59:54 -05:00
parent 3ed750d324
commit 152062ba8a
2 changed files with 23 additions and 4 deletions
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3
piker/cli.py
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@ -178,8 +178,9 @@ def monitor(loglevel, broker, rate, name, dhost, test, tl):
tractor.run( tractor.run(
partial(main, tries=1), partial(main, tries=1),
name='kivy-monitor', name='monitor',
loglevel=loglevel if tl else None, loglevel=loglevel if tl else None,
rpc_module_paths=['piker.ui.monitor'],
) )

24
piker/ui/monitor.py
View File

@ -21,7 +21,6 @@ from kivy import utils
from kivy.app import async_runTouchApp from kivy.app import async_runTouchApp
from kivy.core.window import Window from kivy.core.window import Window
from kivy.properties import BooleanProperty from kivy.properties import BooleanProperty
from kivy.uix.behaviors import ButtonBehavior
from ..log import get_logger from ..log import get_logger
from .pager import PagerView from .pager import PagerView
@ -263,7 +262,7 @@ class BidAskLayout(StackLayout):
return [self.last, self.bid, self.ask] return [self.last, self.bid, self.ask]
class Row(ButtonBehavior, HoverBehavior, GridLayout): class Row(HoverBehavior, GridLayout):
"""A grid for displaying a row of ticker quote data. """A grid for displaying a row of ticker quote data.
""" """
def __init__( def __init__(
@ -383,7 +382,7 @@ class Row(ButtonBehavior, HoverBehavior, GridLayout):
log.debug( log.debug(
f"Entered row {self} through {self.border_point}") f"Entered row {self} through {self.border_point}")
# don't highlight header row # don't highlight header row
if getattr(self, 'is_header', None): if self.is_header:
self.hovered = False self.hovered = False
def on_leave(self): def on_leave(self):
@ -394,6 +393,9 @@ class Row(ButtonBehavior, HoverBehavior, GridLayout):
def on_press(self, value=None): def on_press(self, value=None):
log.info(f"Pressed row for {self._last_record['symbol']}") log.info(f"Pressed row for {self._last_record['symbol']}")
if self.table and not self.is_header:
for q in self.table._click_queues:
q.put_nowait(self._last_record['symbol'])
class TickerTable(GridLayout): class TickerTable(GridLayout):
@ -408,6 +410,7 @@ class TickerTable(GridLayout):
self._auto_sort = auto_sort self._auto_sort = auto_sort
self._symbols2index = {} self._symbols2index = {}
self._sorted = [] self._sorted = []
self._click_queues: List[trio.Queue] = []
def append_row(self, key, row): def append_row(self, key, row):
"""Append a `Row` of `Cell` objects to this table. """Append a `Row` of `Cell` objects to this table.
@ -596,6 +599,21 @@ async def update_quotes(
# nursery.cancel_scope.cancel() # nursery.cancel_scope.cancel()
async def stream_symbol_selection():
"""An RPC async gen for streaming the symbol corresponding
value corresponding to the last clicked row.
"""
widgets = tractor.current_actor().statespace['widgets']
table = widgets['table']
q = trio.Queue(1)
table._click_queues.append(q)
try:
async for symbol in q:
yield symbol
finally:
table._click_queues.remove(q)
async def _async_main( async def _async_main(
name: str, name: str,
portal: tractor._portal.Portal, portal: tractor._portal.Portal,