def run_gui(app, opts, args, internal_book_data, listener=None):
acc = EventAccumulator(app)
app.file_event_hook = acc
app.load_builtin_fonts()
app.setWindowIcon(QIcon(I('viewer.png')))
migrate_previous_viewer_prefs()
main = EbookViewer(open_at=opts.open_at,
continue_reading=opts.continue_reading,
force_reload=opts.force_reload,
calibre_book_data=internal_book_data)
main.set_exception_handler()
if len(args) > 1:
acc.events.append(os.path.abspath(args[-1]))
acc.got_file.connect(main.handle_commandline_arg)
main.show()
if listener is not None:
listener.message_received.connect(main.message_from_other_instance,
type=Qt.QueuedConnection)
QTimer.singleShot(0, acc.flush)
if opts.raise_window:
main.raise_()
if opts.full_screen:
main.set_full_screen(True)
app.exec_()
def main(args=sys.argv):
# Ensure viewer can continue to function if GUI is closed
os.environ.pop('CALIBRE_WORKER_TEMP_DIR', None)
reset_base_dir()
scheme = QWebEngineUrlScheme(FAKE_PROTOCOL.encode('ascii'))
scheme.setSyntax(QWebEngineUrlScheme.Syntax.Host)
scheme.setFlags(QWebEngineUrlScheme.SecureScheme)
QWebEngineUrlScheme.registerScheme(scheme)
override = 'calibre-ebook-viewer' if islinux else None
app = Application(args, override_program_name=override, windows_app_uid=VIEWER_APP_UID)
parser = option_parser()
opts, args = parser.parse_args(args)
oat = opts.open_at
if oat and not (
oat.startswith('toc:') or oat.startswith('toc-href:') or oat.startswith('toc-href-contains:') or
oat.startswith('epubcfi(/') or is_float(oat)):
raise SystemExit('Not a valid --open-at value: {}'.format(opts.open_at))
listener = None
if get_session_pref('singleinstance', False):
try:
listener = ensure_single_instance(args, opts.open_at)
except Exception as e:
import traceback
error_dialog(None, _('Failed to start viewer'), as_unicode(e), det_msg=traceback.format_exc(), show=True)
raise SystemExit(1)
acc = EventAccumulator(app)
app.file_event_hook = acc
app.load_builtin_fonts()
app.setWindowIcon(QIcon(I('viewer.png')))
migrate_previous_viewer_prefs()
main = EbookViewer(open_at=opts.open_at, continue_reading=opts.continue_reading, force_reload=opts.force_reload)
main.set_exception_handler()
if len(args) > 1:
acc.events.append(os.path.abspath(args[-1]))
acc.got_file.connect(main.handle_commandline_arg)
main.show()
main.msg_from_anotherinstance.connect(main.another_instance_wants_to_talk, type=Qt.QueuedConnection)
if listener is not None:
t = Thread(name='ConnListener', target=listen, args=(listener, main.msg_from_anotherinstance))
t.daemon = True
t.start()
QTimer.singleShot(0, acc.flush)
if opts.raise_window:
main.raise_()
if opts.full_screen:
main.set_full_screen(True)
app.exec_()
if listener is not None:
listener.close()