def clear_histories(self, *args):
for key, val in iteritems(config.defaults):
if key.endswith('_search_history') and isinstance(val, list):
config[key] = []
self.gui.search.clear_history()
from calibre.gui2.widgets import history
for key in (
'bulk_edit_search_for',
'bulk_edit_replace_with',
'viewer-highlights-search-panel-expression',
'viewer-search-panel-expression',
):
history.set('lineedit_history_' + key, [])
from calibre.gui2.viewer.config import vprefs
for k in ('search', 'highlights'):
vprefs.set(f'saved-{k}-settings', {})
def backend_settings(self, val):
key = 'tts_' + self.tts_client_class.name
vprefs.set(key, val or {})
def backend_settings(self, val):
from calibre.gui2.tts.implementation import Client
key = 'tts_' + Client.name
val = val or {}
vprefs.set(key, val)
self.tts_client.apply_settings(val)