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piker
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Support opening a handler on a collection of widgets

fsp_feeds
Tyler Goodlet 2021-07-25 15:42:48 -04:00
parent d1244608bd
commit 43b769a136
3 changed files with 15 additions and 9 deletions
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4
piker/ui/_chart.py
View File

@ -1689,8 +1689,8 @@ async def _async_main(
# start handling search bar kb inputs # start handling search bar kb inputs
async with ( async with (
_event.open_handler( _event.open_handlers(
search.bar, [search.bar],
event_types={QEvent.KeyPress}, event_types={QEvent.KeyPress},
async_handler=_search.handle_keyboard_input, async_handler=_search.handle_keyboard_input,
# let key repeats pass through for search # let key repeats pass through for search

16
piker/ui/_event.py
View File

@ -18,7 +18,7 @@
Qt event proxying and processing using ``trio`` mem chans. Qt event proxying and processing using ``trio`` mem chans.
""" """
from contextlib import asynccontextmanager from contextlib import asynccontextmanager, AsyncExitStack
from typing import Callable from typing import Callable
from PyQt5 import QtCore from PyQt5 import QtCore
@ -124,9 +124,9 @@ async def open_event_stream(
@asynccontextmanager @asynccontextmanager
async def open_handler( async def open_handlers(
source_widget: QWidget, source_widgets: list[QWidget],
event_types: set[QEvent], event_types: set[QEvent],
async_handler: Callable[[QWidget, trio.abc.ReceiveChannel], None], async_handler: Callable[[QWidget, trio.abc.ReceiveChannel], None],
**kwargs, **kwargs,
@ -135,7 +135,13 @@ async def open_handler(
async with ( async with (
trio.open_nursery() as n, trio.open_nursery() as n,
open_event_stream(source_widget, event_types, **kwargs) as event_recv_stream, AsyncExitStack() as stack,
): ):
n.start_soon(async_handler, source_widget, event_recv_stream) for widget in source_widgets:
event_recv_stream = await stack.enter_async_context(
open_event_stream(widget, event_types, **kwargs)
)
n.start_soon(async_handler, widget, event_recv_stream)
yield yield

4
piker/ui/_interaction.py
View File

@ -273,8 +273,8 @@ class ChartView(ViewBox):
) -> 'ChartView': ) -> 'ChartView':
from . import _event from . import _event
async with _event.open_handler( async with _event.open_handlers(
self, [self],
event_types={QEvent.KeyPress, QEvent.KeyRelease}, event_types={QEvent.KeyPress, QEvent.KeyRelease},
async_handler=handle_viewmode_inputs, async_handler=handle_viewmode_inputs,
): ):