225 lines
7.0 KiB
Python
225 lines
7.0 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 itertools
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import time
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from concurrent.futures import Future
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from typing import Iterable, List, Optional, Sequence, TypeVar
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import aqt
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from anki.collection import SearchNode
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from anki.errors import Interrupted
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from anki.lang import TR
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from anki.media import CheckMediaOut
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from aqt.qt import *
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from aqt.utils import (
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askUser,
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disable_help_button,
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restoreGeom,
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saveGeom,
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showText,
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tooltip,
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tr,
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)
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T = TypeVar("T")
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def chunked_list(l: Iterable[T], n: int) -> Iterable[List[T]]:
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l = iter(l)
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while True:
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res = list(itertools.islice(l, n))
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if not res:
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return
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yield res
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def check_media_db(mw: aqt.AnkiQt) -> None:
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c = MediaChecker(mw)
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c.check()
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class MediaChecker:
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progress_dialog: Optional[aqt.progress.ProgressDialog]
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def __init__(self, mw: aqt.AnkiQt) -> None:
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self.mw = mw
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self._progress_timer: Optional[QTimer] = None
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def check(self) -> None:
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self.progress_dialog = self.mw.progress.start()
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self._set_progress_enabled(True)
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self.mw.taskman.run_in_background(self._check, self._on_finished)
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def _set_progress_enabled(self, enabled: bool) -> None:
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if self._progress_timer:
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self._progress_timer.stop()
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self._progress_timer = None
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if enabled:
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self._progress_timer = timer = QTimer()
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timer.setSingleShot(False)
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timer.setInterval(100)
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qconnect(timer.timeout, self._on_progress)
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timer.start()
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def _on_progress(self) -> None:
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if not self.mw.col:
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return
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progress = self.mw.col.latest_progress()
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if not progress.HasField("media_check"):
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return
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label = progress.media_check
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try:
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if self.progress_dialog.wantCancel:
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self.mw.col.set_wants_abort()
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except AttributeError:
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# dialog may not be active
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pass
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self.mw.taskman.run_on_main(lambda: self.mw.progress.update(label=label))
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def _check(self) -> CheckMediaOut:
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"Run the check on a background thread."
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return self.mw.col.media.check()
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def _on_finished(self, future: Future) -> None:
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self._set_progress_enabled(False)
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self.mw.progress.finish()
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self.progress_dialog = None
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exc = future.exception()
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if isinstance(exc, Interrupted):
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return
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output: CheckMediaOut = future.result()
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report = output.report
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# show report and offer to delete
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diag = QDialog(self.mw)
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diag.setWindowTitle(tr.media_check_window_title())
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disable_help_button(diag)
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layout = QVBoxLayout(diag)
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diag.setLayout(layout)
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text = QPlainTextEdit()
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text.setReadOnly(True)
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text.setPlainText(report)
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text.setWordWrapMode(QTextOption.NoWrap)
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layout.addWidget(text)
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box = QDialogButtonBox(QDialogButtonBox.Close)
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layout.addWidget(box)
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if output.unused:
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b = QPushButton(tr.media_check_delete_unused())
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b.setAutoDefault(False)
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box.addButton(b, QDialogButtonBox.RejectRole)
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qconnect(b.clicked, lambda c: self._on_trash_files(output.unused))
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if output.missing:
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if any(map(lambda x: x.startswith("latex-"), output.missing)):
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b = QPushButton(tr.media_check_render_latex())
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b.setAutoDefault(False)
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box.addButton(b, QDialogButtonBox.RejectRole)
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qconnect(b.clicked, self._on_render_latex)
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if output.have_trash:
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b = QPushButton(tr.media_check_empty_trash())
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b.setAutoDefault(False)
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box.addButton(b, QDialogButtonBox.RejectRole)
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qconnect(b.clicked, lambda c: self._on_empty_trash())
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b = QPushButton(tr.media_check_restore_trash())
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b.setAutoDefault(False)
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box.addButton(b, QDialogButtonBox.RejectRole)
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qconnect(b.clicked, lambda c: self._on_restore_trash())
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qconnect(box.rejected, diag.reject)
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diag.setMinimumHeight(400)
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diag.setMinimumWidth(500)
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restoreGeom(diag, "checkmediadb")
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diag.exec_()
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saveGeom(diag, "checkmediadb")
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def _on_render_latex(self) -> None:
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self.progress_dialog = self.mw.progress.start()
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try:
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out = self.mw.col.media.render_all_latex(self._on_render_latex_progress)
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if self.progress_dialog.wantCancel:
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return
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finally:
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self.mw.progress.finish()
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self.progress_dialog = None
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if out is not None:
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nid, err = out
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aqt.dialogs.open("Browser", self.mw, search=(SearchNode(nid=nid),))
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showText(err, type="html")
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else:
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tooltip(tr.media_check_all_latex_rendered())
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def _on_render_latex_progress(self, count: int) -> bool:
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if self.progress_dialog.wantCancel:
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return False
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self.mw.progress.update(tr(TR.MEDIA_CHECK_CHECKED, count=count))
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return True
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def _on_trash_files(self, fnames: Sequence[str]) -> None:
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if not askUser(tr.media_check_delete_unused_confirm()):
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return
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self.progress_dialog = self.mw.progress.start()
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last_progress = time.time()
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remaining = len(fnames)
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total = len(fnames)
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try:
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for chunk in chunked_list(fnames, 25):
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self.mw.col.media.trash_files(chunk)
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remaining -= len(chunk)
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if time.time() - last_progress >= 0.3:
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self.mw.progress.update(
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tr(TR.MEDIA_CHECK_FILES_REMAINING, count=remaining)
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)
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finally:
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self.mw.progress.finish()
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self.progress_dialog = None
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tooltip(tr(TR.MEDIA_CHECK_DELETE_UNUSED_COMPLETE, count=total))
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def _on_empty_trash(self) -> None:
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self.progress_dialog = self.mw.progress.start()
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self._set_progress_enabled(True)
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def empty_trash() -> None:
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self.mw.col.media.empty_trash()
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def on_done(fut: Future) -> None:
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self.mw.progress.finish()
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self._set_progress_enabled(False)
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# check for errors
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fut.result()
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tooltip(tr.media_check_trash_emptied())
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self.mw.taskman.run_in_background(empty_trash, on_done)
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def _on_restore_trash(self) -> None:
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self.progress_dialog = self.mw.progress.start()
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self._set_progress_enabled(True)
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def restore_trash() -> None:
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self.mw.col.media.restore_trash()
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def on_done(fut: Future) -> None:
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self.mw.progress.finish()
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self._set_progress_enabled(False)
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# check for errors
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fut.result()
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tooltip(tr.media_check_trash_restored())
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self.mw.taskman.run_in_background(restore_trash, on_done)
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