tobias/editor-preview
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Fix memory leakage caused by hook not releasing

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Due to Anki not providing a hook when closing the editor, refactoring to use set filter to check which editors are not active and avoid creating a large number of hooks. By traversing the set, it is determined whether the current editor needs to be refreshed.
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gugutu 2024-02-02 08:50:17 +08:00 committed by GitHub
parent deca35908a
commit 74d12576cd
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1 changed files with 17 additions and 11 deletions
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28
src/__init__.py
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@ -1,4 +1,5 @@
import json
from typing import Set
from anki import hooks, buildinfo
from aqt import editor, gui_hooks, mw
@ -10,6 +11,7 @@ config = mw.addonManager.getConfig(__name__)
class EditorPreview(object):
editors: Set[editor.Editor] = set()
js = [
"js/mathjax.js",
"js/vendor/mathjax/tex-chtml.js",
@ -19,6 +21,8 @@ class EditorPreview(object):
def __init__(self):
gui_hooks.editor_did_init.append(self.editor_init_hook)
gui_hooks.editor_did_init_buttons.append(self.editor_init_button_hook)
gui_hooks.editor_did_load_note.append(self.editor_note_hook)
gui_hooks.editor_did_fire_typing_timer.append(self.onedit_hook)
buildversion = buildinfo.version.split(".")
# Anki changed their versioning scheme in 2023 to year.month(.patch), causing things to explode here.
@ -45,12 +49,9 @@ class EditorPreview(object):
ed.editor_preview.hide()
self._inject_splitter(ed)
gui_hooks.editor_did_fire_typing_timer.append(lambda o: self.onedit_hook(ed, o))
gui_hooks.editor_did_load_note.append(
lambda o: None if o != ed else self.editor_note_hook(o)
)
def _get_splitter(self, editor):
layout = editor.outerLayout
mainR, editorR = [int(r) for r in config["splitRatio"].split(":")]
location = config["location"]
split = QSplitter()
@ -99,11 +100,13 @@ class EditorPreview(object):
layout.insertWidget(web_index, split)
def editor_note_hook(self, editor):
self.editors = set(filter(lambda it: it.note is not None, self.editors))
self.editors.add(editor)
# The initial loading of notes will also trigger an editing event
# which will cause a second refresh
# It is disabled here and enabled after the first editing
editor.need_reload_on_edit = False
self.onedit_hook(editor, editor.note)
self.refresh(editor)
def editor_init_button_hook(self, buttons, editor):
addon_path = os.path.dirname(__file__)
@ -132,12 +135,15 @@ class EditorPreview(object):
return f"_showAnswer({json.dumps(a)},'{bodyclass}');"
def onedit_hook(self, editor, origin):
if editor.note == origin:
if editor.need_reload_on_edit:
editor.editor_preview.eval(self._obtainCardText(editor.note))
else:
editor.need_reload_on_edit = True
def onedit_hook(self, origin):
for editor in self.editors:
if editor.note == origin:
if editor.need_reload_on_edit:
self.refresh(editor)
else:
editor.need_reload_on_edit = True
def refresh(self, editor):
editor.editor_preview.eval(self._obtainCardText(editor.note))
eprev = EditorPreview()