1# Copyright 2021 The Pigweed Authors 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); you may not 4# use this file except in compliance with the License. You may obtain a copy of 5# the License at 6# 7# https://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 11# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 12# License for the specific language governing permissions and limitations under 13# the License. 14"""Mouse handler fuctions.""" 15 16from prompt_toolkit.application.current import get_app 17from prompt_toolkit.filters import has_focus 18from prompt_toolkit.mouse_events import MouseEvent, MouseEventType 19 20 21def focus_handler(container, mouse_event: MouseEvent): 22 """Focus container on click.""" 23 if not has_focus(container)(): 24 if mouse_event.event_type == MouseEventType.MOUSE_UP: 25 get_app().layout.focus(container) 26 return None 27 return NotImplemented 28