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piker
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Code Issues 4 Pull Requests 6 Packages Projects Releases Wiki Activity

Attempt to keep selected item highlighted 

This attempt was unsuccessful since trying to (re)select the last
highlighted item on both an "enter" or "click" of that item causes
a hang and then segfault in `Qt`; no clue why..

Adds a `keep_current_item_selected: bool` flag to
`CompleterView.show_cache_entries()` but using it seems to always cause
a hang and crash; we keep all potential use spots commented for now
obviously to avoid this. Also included is a bunch of tidying to logic
blocks in the kb-control loop for readability.
epoch_index_backup
Tyler Goodlet 2023-01-09 15:06:12 -05:00
parent dd292b3652
commit e2e3e30d7a
1 changed files with 105 additions and 46 deletions
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143
piker/ui/_search.py
View File

@ -144,15 +144,29 @@ class CompleterView(QTreeView):
self._font_size: int = 0 # pixels self._font_size: int = 0 # pixels
self._init: bool = False self._init: bool = False
async def on_pressed(self, idx: QModelIndex) -> None: async def on_pressed(
self,
idx: QModelIndex,
) -> None:
''' '''
Mouse pressed on view handler. Mouse pressed on view handler.
''' '''
search = self.parent() search = self.parent()
await search.chart_current_item()
await search.chart_current_item(
clear_to_cache=True,
)
# XXX: this causes Qt to hang and segfault..lovely
# self.show_cache_entries(
# only=True,
# keep_current_item_selected=True,
# )
search.focus() search.focus()
def set_font_size(self, size: int = 18): def set_font_size(self, size: int = 18):
# print(size) # print(size)
if size < 0: if size < 0:
@ -288,7 +302,7 @@ class CompleterView(QTreeView):
def select_first(self) -> QStandardItem: def select_first(self) -> QStandardItem:
''' '''
Select the first depth >= 2 entry from the completer tree and Select the first depth >= 2 entry from the completer tree and
return it's item. return its item.
''' '''
# ensure we're **not** selecting the first level parent node and # ensure we're **not** selecting the first level parent node and
@ -615,6 +629,8 @@ class SearchWidget(QtWidgets.QWidget):
def show_cache_entries( def show_cache_entries(
self, self,
only: bool = False, only: bool = False,
keep_current_item_selected: bool = False,
) -> None: ) -> None:
''' '''
Clear the search results view and show only cached (aka recently Clear the search results view and show only cached (aka recently
@ -629,6 +645,10 @@ class SearchWidget(QtWidgets.QWidget):
for fqsn in set(multi_fqsns): for fqsn in set(multi_fqsns):
fqsns.add(fqsn) fqsns.add(fqsn)
if keep_current_item_selected:
sel = self.view.selectionModel()
cidx = sel.currentIndex()
self.view.set_section_entries( self.view.set_section_entries(
'cache', 'cache',
list(fqsns), list(fqsns),
@ -637,7 +657,17 @@ class SearchWidget(QtWidgets.QWidget):
reverse=True, reverse=True,
) )
def get_current_item(self) -> Optional[tuple[str, str]]: if (
keep_current_item_selected
and cidx.isValid()
):
# set current selection back to what it was before filling out
# the view results.
self.view.select_from_idx(cidx)
else:
self.view.select_first()
def get_current_item(self) -> tuple[QModelIndex, str, str] | None:
''' '''
Return the current completer tree selection as Return the current completer tree selection as
a tuple ``(parent: str, child: str)`` if valid, else ``None``. a tuple ``(parent: str, child: str)`` if valid, else ``None``.
@ -665,7 +695,11 @@ class SearchWidget(QtWidgets.QWidget):
if provider == 'cache': if provider == 'cache':
symbol, _, provider = symbol.rpartition('.') symbol, _, provider = symbol.rpartition('.')
return provider, symbol return (
cidx,
provider,
symbol,
)
else: else:
return None return None
@ -686,7 +720,7 @@ class SearchWidget(QtWidgets.QWidget):
if value is None: if value is None:
return None return None
provider, symbol = value cidx, provider, symbol = value
godw = self.godwidget godw = self.godwidget
fqsn = f'{symbol}.{provider}' fqsn = f'{symbol}.{provider}'
@ -715,7 +749,9 @@ class SearchWidget(QtWidgets.QWidget):
godw.rt_linked, godw.rt_linked,
) )
) )
self.show_cache_entries(only=True) self.show_cache_entries(
only=True,
)
self.bar.focus() self.bar.focus()
return fqsn return fqsn
@ -956,11 +992,10 @@ async def handle_keyboard_input(
global _search_active, _search_enabled global _search_active, _search_enabled
# startup # startup
bar = searchbar searchw = searchbar.parent()
search = searchbar.parent() godwidget = searchw.godwidget
godwidget = search.godwidget view = searchbar.view
view = bar.view view.set_font_size(searchbar.dpi_font.px_size)
view.set_font_size(bar.dpi_font.px_size)
send, recv = trio.open_memory_channel(616) send, recv = trio.open_memory_channel(616)
async with trio.open_nursery() as n: async with trio.open_nursery() as n:
@ -971,13 +1006,13 @@ async def handle_keyboard_input(
n.start_soon( n.start_soon(
partial( partial(
fill_results, fill_results,
search, searchw,
recv, recv,
) )
) )
bar.focus() searchbar.focus()
search.show_cache_entries() searchw.show_cache_entries()
await trio.sleep(0) await trio.sleep(0)
async for kbmsg in recv_chan: async for kbmsg in recv_chan:
@ -994,16 +1029,24 @@ async def handle_keyboard_input(
Qt.Key_Return Qt.Key_Return
): ):
_search_enabled = False _search_enabled = False
await search.chart_current_item(clear_to_cache=True) await searchw.chart_current_item(clear_to_cache=True)
search.show_cache_entries(only=True)
# XXX: causes hang and segfault..
# searchw.show_cache_entries(
# only=True,
# keep_current_item_selected=True,
# )
view.show_matches() view.show_matches()
search.focus() searchw.focus()
elif not ctl and not bar.text():
elif (
not ctl
and not searchbar.text()
):
# TODO: really should factor this somewhere..bc # TODO: really should factor this somewhere..bc
# we're doin it in another spot as well.. # we're doin it in another spot as well..
search.show_cache_entries(only=True) searchw.show_cache_entries(only=True)
continue continue
# cancel and close # cancel and close
@ -1012,7 +1055,7 @@ async def handle_keyboard_input(
Qt.Key_Space, # i feel like this is the "native" one Qt.Key_Space, # i feel like this is the "native" one
Qt.Key_Alt, Qt.Key_Alt,
}: }:
bar.unfocus() searchbar.unfocus()
# kill the search and focus back on main chart # kill the search and focus back on main chart
if godwidget: if godwidget:
@ -1020,41 +1063,54 @@ async def handle_keyboard_input(
continue continue
if ctl and key in { if (
Qt.Key_L, ctl
}: and key in {Qt.Key_L}
):
# like url (link) highlight in a web browser # like url (link) highlight in a web browser
bar.focus() searchbar.focus()
# selection navigation controls # selection navigation controls
elif ctl and key in { elif (
Qt.Key_D, ctl
}: and key in {Qt.Key_D}
):
view.next_section(direction='down') view.next_section(direction='down')
_search_enabled = False _search_enabled = False
elif ctl and key in { elif (
Qt.Key_U, ctl
}: and key in {Qt.Key_U}
):
view.next_section(direction='up') view.next_section(direction='up')
_search_enabled = False _search_enabled = False
# selection navigation controls # selection navigation controls
elif (ctl and key in { elif (
ctl and (
key in {
Qt.Key_K, Qt.Key_K,
Qt.Key_J, Qt.Key_J,
}
}) or key in { or key in {
Qt.Key_Up, Qt.Key_Up,
Qt.Key_Down, Qt.Key_Down,
}: }
)
):
_search_enabled = False _search_enabled = False
if key in {Qt.Key_K, Qt.Key_Up}:
if key in {
Qt.Key_K,
Qt.Key_Up
}:
item = view.select_previous() item = view.select_previous()
elif key in {Qt.Key_J, Qt.Key_Down}: elif key in {
Qt.Key_J,
Qt.Key_Down,
}:
item = view.select_next() item = view.select_next()
if item: if item:
@ -1063,15 +1119,18 @@ async def handle_keyboard_input(
# if we're in the cache section and thus the next # if we're in the cache section and thus the next
# selection is a cache item, switch and show it # selection is a cache item, switch and show it
# immediately since it should be very fast. # immediately since it should be very fast.
if parent_item and parent_item.text() == 'cache': if (
await search.chart_current_item(clear_to_cache=False) parent_item
and parent_item.text() == 'cache'
):
await searchw.chart_current_item(clear_to_cache=False)
# ACTUAL SEARCH BLOCK # # ACTUAL SEARCH BLOCK #
# where we fuzzy complete and fill out sections. # where we fuzzy complete and fill out sections.
elif not ctl: elif not ctl:
# relay to completer task # relay to completer task
_search_enabled = True _search_enabled = True
send.send_nowait(search.bar.text()) send.send_nowait(searchw.bar.text())
_search_active.set() _search_active.set()