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