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# Licensed to the Software Freedom Conservancy (SFC) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The SFC licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
import typing
from dataclasses import dataclass
from .session import session_subscribe
from .session import session_unsubscribe
class Script:
def __init__(self, conn):
self.conn = conn
self.log_entry_subscribed = False
def add_console_message_handler(self, handler):
self._subscribe_to_log_entries()
return self.conn.add_callback(LogEntryAdded, self._handle_log_entry("console", handler))
def add_javascript_error_handler(self, handler):
self._subscribe_to_log_entries()
return self.conn.add_callback(LogEntryAdded, self._handle_log_entry("javascript", handler))
def remove_console_message_handler(self, id):
self.conn.remove_callback(LogEntryAdded, id)
self._unsubscribe_from_log_entries()
remove_javascript_error_handler = remove_console_message_handler
def _subscribe_to_log_entries(self):
if not self.log_entry_subscribed:
self.conn.execute(session_subscribe(LogEntryAdded.event_class))
self.log_entry_subscribed = True
def _unsubscribe_from_log_entries(self):
if self.log_entry_subscribed and LogEntryAdded.event_class not in self.conn.callbacks:
self.conn.execute(session_unsubscribe(LogEntryAdded.event_class))
self.log_entry_subscribed = False
def _handle_log_entry(self, type, handler):
def _handle_log_entry(log_entry):
if log_entry.type_ == type:
handler(log_entry)
return _handle_log_entry
class LogEntryAdded:
event_class = "log.entryAdded"
@classmethod
def from_json(cls, json):
print(json)
if json["type"] == "console":
return ConsoleLogEntry.from_json(json)
elif json["type"] == "javascript":
return JavaScriptLogEntry.from_json(json)
@dataclass
class ConsoleLogEntry:
level: str
text: str
timestamp: str
method: str
args: typing.List[dict]
type_: str
@classmethod
def from_json(cls, json):
return cls(
level=json["level"],
text=json["text"],
timestamp=json["timestamp"],
method=json["method"],
args=json["args"],
type_=json["type"],
)
@dataclass
class JavaScriptLogEntry:
level: str
text: str
timestamp: str
stacktrace: dict
type_: str
@classmethod
def from_json(cls, json):
return cls(
level=json["level"],
text=json["text"],
timestamp=json["timestamp"],
stacktrace=json["stackTrace"],
type_=json["type"],
)
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