1 # Copyright 2017 The Chromium OS Authors. All rights reserved. 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 import os 6 7 from autotest_lib.client.common_lib import error 8 from autotest_lib.client.cros.input_playback import input_playback 9 10 _KEYBOARD = 'keyboard' 11 _KEY_FILENAME = 'keyboard_%s' 12 13 class Keyboard(object): 14 """An emulated keyboard device used for UI automation.""" 15 16 def __init__(self): 17 """Prepare an emulated keyboard device.""" 18 self.dirname = os.path.dirname(__file__) 19 # Create an emulated keyboard device. 20 self.keyboard = input_playback.InputPlayback() 21 self.keyboard.emulate(input_type=_KEYBOARD) 22 self.keyboard.find_connected_inputs() 23 24 def press_key(self, key): 25 """Replay the recorded key events if exists. 26 27 @param key: the target key name, e.g. f1, f2, tab or combination of keys 28 'alt+shift+i', 'ctrl+f5', etc. 29 30 """ 31 event_file = os.path.join(self.dirname, _KEY_FILENAME % key) 32 if not os.path.exists(event_file): 33 raise error.TestError('No such key file keyboard_%s in %s' 34 % (key, self.dirname)) 35 self.keyboard.blocking_playback(filepath=event_file, 36 input_type=_KEYBOARD) 37 38 def playback(self, event_file): 39 """Replay the specified key events file. 40 41 @param event_file: the filename of the key events 42 43 """ 44 self.keyboard.blocking_playback(filepath=event_file, 45 input_type=_KEYBOARD) 46 47 def close(self): 48 """Clean up the files/handles created in the class.""" 49 if self.keyboard: 50 self.keyboard.close() 51
