| # Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| import json |
| import logging |
| |
| class InspectorConsole(object): |
| def __init__(self, inspector_backend): |
| self._inspector_backend = inspector_backend |
| self._inspector_backend.RegisterDomain( |
| 'Console', |
| self._OnNotification, |
| self._OnClose) |
| self._message_output_stream = None |
| self._last_message = None |
| self._console_enabled = False |
| |
| def _OnNotification(self, msg): |
| logging.debug('Notification: %s', json.dumps(msg, indent=2)) |
| if msg['method'] == 'Console.messageAdded': |
| if msg['params']['message']['url'] == 'chrome://newtab/': |
| return |
| self._last_message = 'At %s:%i: %s' % ( |
| msg['params']['message']['url'], |
| msg['params']['message']['line'], |
| msg['params']['message']['text']) |
| if self._message_output_stream: |
| self._message_output_stream.write( |
| '%s\n' % self._last_message) |
| |
| elif msg['method'] == 'Console.messageRepeatCountUpdated': |
| if self._message_output_stream: |
| self._message_output_stream.write( |
| '%s\n' % self._last_message) |
| |
| def _OnClose(self): |
| pass |
| |
| # False positive in PyLint 0.25.1: http://www.logilab.org/89092 |
| @property |
| def message_output_stream(self): # pylint: disable=E0202 |
| return self._message_output_stream |
| |
| @message_output_stream.setter |
| def message_output_stream(self, stream): # pylint: disable=E0202 |
| self._message_output_stream = stream |
| self._UpdateConsoleEnabledState() |
| |
| def _UpdateConsoleEnabledState(self): |
| enabled = self._message_output_stream != None |
| if enabled == self._console_enabled: |
| return |
| |
| if enabled: |
| method_name = 'enable' |
| else: |
| method_name = 'disable' |
| self._inspector_backend.SyncRequest({ |
| 'method': 'Console.%s' % method_name |
| }) |
| self._console_enabled = enabled |
