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| 1 # Copyright (c) 2012 The Chromium 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 import json | |
| 5 import logging | |
| 6 | |
| 7 class InspectorConsole(object): | |
| 8 def __init__(self, inspector_backend): | |
| 9 self._inspector_backend = inspector_backend | |
| 10 self._inspector_backend.RegisterDomain( | |
| 11 'Console', | |
| 12 self._OnNotification, | |
| 13 self._OnClose) | |
| 14 self._message_output_stream = None | |
| 15 self._last_message = None | |
| 16 self._console_enabled = False | |
| 17 | |
| 18 def _OnNotification(self, msg): | |
| 19 logging.debug('Notification: %s', json.dumps(msg, indent=2)) | |
| 20 if msg['method'] == 'Console.messageAdded': | |
| 21 if msg['params']['message']['url'] == 'chrome://newtab/': | |
| 22 return | |
| 23 self._last_message = 'At %s:%i: %s' % ( | |
| 24 msg['params']['message']['url'], | |
| 25 msg['params']['message']['line'], | |
| 26 msg['params']['message']['text']) | |
| 27 if self._message_output_stream: | |
| 28 self._message_output_stream.write( | |
| 29 '%s\n' % self._last_message) | |
| 30 | |
| 31 elif msg['method'] == 'Console.messageRepeatCountUpdated': | |
| 32 if self._message_output_stream: | |
| 33 self._message_output_stream.write( | |
| 34 '%s\n' % self._last_message) | |
| 35 | |
| 36 def _OnClose(self): | |
| 37 pass | |
| 38 | |
| 39 # False positive in PyLint 0.25.1: http://www.logilab.org/89092 | |
| 40 @property | |
| 41 def message_output_stream(self): # pylint: disable=E0202 | |
| 42 return self._message_output_stream | |
| 43 | |
| 44 @message_output_stream.setter | |
| 45 def message_output_stream(self, stream): # pylint: disable=E0202 | |
| 46 self._message_output_stream = stream | |
| 47 self._UpdateConsoleEnabledState() | |
| 48 | |
| 49 def _UpdateConsoleEnabledState(self): | |
| 50 enabled = self._message_output_stream != None | |
| 51 if enabled == self._console_enabled: | |
| 52 return | |
| 53 | |
| 54 if enabled: | |
| 55 method_name = 'enable' | |
| 56 else: | |
| 57 method_name = 'disable' | |
| 58 self._inspector_backend.SyncRequest({ | |
| 59 'method': 'Console.%s' % method_name | |
| 60 }) | |
| 61 self._console_enabled = enabled | |
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