anki/qt/aqt/tagedit.py
Damien Elmes b9251290ca run pyupgrade over codebase [python upgrade required]
This adds Python 3.9 and 3.10 typing syntax to files that import
attributions from __future___. Python 3.9 should be able to cope with
the 3.10 syntax, but Python 3.8 will no longer work.

On Windows/Mac, install the latest Python 3.9 version from python.org.
There are currently no orjson wheels for Python 3.10 on Windows/Mac,
which will break the build unless you have Rust installed separately.

On Linux, modern distros should have Python 3.9 available already. If
you're on an older distro, you'll need to build Python from source first.
2021-10-04 15:05:48 +10:00

141 lines
4.7 KiB
Python

# Copyright: Ankitects Pty Ltd and contributors
# License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
from __future__ import annotations
import re
from typing import Iterable
from anki.collection import Collection
from aqt import gui_hooks
from aqt.qt import *
class TagEdit(QLineEdit):
_completer: QCompleter | TagCompleter
lostFocus = pyqtSignal()
# 0 = tags, 1 = decks
def __init__(self, parent: QWidget, type: int = 0) -> None:
QLineEdit.__init__(self, parent)
self.col: Collection | None = None
self.model = QStringListModel()
self.type = type
if type == 0:
self._completer = TagCompleter(self.model, parent, self)
else:
self._completer = QCompleter(self.model, parent)
self._completer.setCompletionMode(QCompleter.PopupCompletion)
self._completer.setCaseSensitivity(Qt.CaseInsensitive)
self._completer.setFilterMode(Qt.MatchContains)
self.setCompleter(self._completer)
def setCol(self, col: Collection) -> None:
"Set the current col, updating list of available tags."
self.col = col
l: Iterable[str]
if self.type == 0:
l = self.col.tags.all()
else:
l = (d.name for d in self.col.decks.all_names_and_ids())
self.model.setStringList(l)
def focusInEvent(self, evt: QFocusEvent) -> None:
QLineEdit.focusInEvent(self, evt)
def keyPressEvent(self, evt: QKeyEvent) -> None:
if evt.key() in (Qt.Key_Up, Qt.Key_Down):
# show completer on arrow key up/down
if not self._completer.popup().isVisible():
self.showCompleter()
return
if evt.key() == Qt.Key_Tab and int(evt.modifiers()) & Qt.ControlModifier:
# select next completion
if not self._completer.popup().isVisible():
self.showCompleter()
index = self._completer.currentIndex()
self._completer.popup().setCurrentIndex(index)
cur_row = index.row()
if not self._completer.setCurrentRow(cur_row + 1):
self._completer.setCurrentRow(0)
return
if (
evt.key() in (Qt.Key_Enter, Qt.Key_Return)
and self._completer.popup().isVisible()
):
# apply first completion if no suggestion selected
selected_row = self._completer.popup().currentIndex().row()
if selected_row == -1:
self._completer.setCurrentRow(0)
index = self._completer.currentIndex()
self._completer.popup().setCurrentIndex(index)
self.hideCompleter()
QWidget.keyPressEvent(self, evt)
return
QLineEdit.keyPressEvent(self, evt)
if not evt.text():
# if it's a modifier, don't show
return
if evt.key() not in (
Qt.Key_Enter,
Qt.Key_Return,
Qt.Key_Escape,
Qt.Key_Space,
Qt.Key_Tab,
Qt.Key_Backspace,
Qt.Key_Delete,
):
self.showCompleter()
gui_hooks.tag_editor_did_process_key(self, evt)
def showCompleter(self) -> None:
self._completer.setCompletionPrefix(self.text())
self._completer.complete()
def focusOutEvent(self, evt: QFocusEvent) -> None:
QLineEdit.focusOutEvent(self, evt)
self.lostFocus.emit() # type: ignore
self._completer.popup().hide()
def hideCompleter(self) -> None:
if sip.isdeleted(self._completer):
return
self._completer.popup().hide()
class TagCompleter(QCompleter):
def __init__(
self,
model: QStringListModel,
parent: QWidget,
edit: TagEdit,
) -> None:
QCompleter.__init__(self, model, parent)
self.tags: list[str] = []
self.edit = edit
self.cursor: int | None = None
def splitPath(self, tags: str) -> list[str]:
stripped_tags = tags.strip()
stripped_tags = re.sub(" +", " ", stripped_tags)
self.tags = self.edit.col.tags.split(stripped_tags)
self.tags.append("")
p = self.edit.cursorPosition()
if tags.endswith(" "):
self.cursor = len(self.tags) - 1
else:
self.cursor = stripped_tags.count(" ", 0, p)
return [self.tags[self.cursor]]
def pathFromIndex(self, idx: QModelIndex) -> str:
if self.cursor is None:
return self.edit.text()
ret = QCompleter.pathFromIndex(self, idx)
self.tags[self.cursor] = ret
try:
self.tags.remove("")
except ValueError:
pass
return f"{' '.join(self.tags)} "