From ef00c4ec75446c60dea8f790ae86109e0d8b6ca3 Mon Sep 17 00:00:00 2001 From: Ivan Alejandro Date: Mon, 27 May 2013 15:08:44 -0300 Subject: Add logger window connected with the leap_handler --- src/leap/gui/loggerwindow.py | 124 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 124 insertions(+) create mode 100644 src/leap/gui/loggerwindow.py (limited to 'src/leap/gui/loggerwindow.py') diff --git a/src/leap/gui/loggerwindow.py b/src/leap/gui/loggerwindow.py new file mode 100644 index 00000000..dd724ac7 --- /dev/null +++ b/src/leap/gui/loggerwindow.py @@ -0,0 +1,124 @@ +# -*- coding: utf-8 -*- +# loggerwindow.py +# Copyright (C) 2013 LEAP +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +""" +History log window +""" +import logging + +from PySide import QtGui +from ui_loggerwindow import Ui_LoggerWindow +from leap.common.check import leap_assert, leap_assert_type +from leap.util.leap_log_handler import LeapLogHandler + +logger = logging.getLogger(__name__) + + +class LoggerWindow(QtGui.QWidget): + """ + Window that displays a history of the logged messages in the app. + """ + def __init__(self, handler): + """ + Initialize the widget with the custom handler. + + :param handler: Custom handler that supports history and signal. + :type handler: LeapLogHandler. + """ + QtGui.QWidget.__init__(self) + leap_assert(handler, "We need a handler for the logger window") + leap_assert_type(handler, LeapLogHandler) + + # Load UI + self.ui = Ui_LoggerWindow() + self.ui.setupUi(self) + + # Make connections + self.ui.btnSave.clicked.connect(self._save_log_to_file) + self.ui.btnDebug.toggled.connect(self._load_history), + self.ui.btnInfo.toggled.connect(self._load_history), + self.ui.btnWarning.toggled.connect(self._load_history), + self.ui.btnError.toggled.connect(self._load_history), + self.ui.btnCritical.toggled.connect(self._load_history) + + # Load logging history and connect logger with the widget + self._logging_handler = handler + self._connect_to_handler() + self._load_history() + + def _connect_to_handler(self): + """ + This method connects the loggerwindow with the handler through a + signal communicate the logger events. + """ + self._logging_handler.new_log.connect(self._add_log_line) + + def _add_log_line(self, log): + """ + Adds a line to the history, only if it's in the desired levels to show. + + :param log: a log record to be inserted in the widget + :type log: a dict with RECORD_KEY and MESSAGE_KEY. + the record contains the LogRecord of the logging module, + the message contains the formatted message for the log. + """ + level = log[LeapLogHandler.RECORD_KEY].levelname + message = log[LeapLogHandler.MESSAGE_KEY] + + if self._logs_to_display[level]: + self.ui.txtLogHistory.append(message) + + def _load_history(self): + """ + Load the previous logged messages in the widget. + They are stored in the custom handler. + """ + self._set_logs_to_display() + self.ui.txtLogHistory.clear() + history = self._logging_handler.log_history + for line in history: + self._add_log_line(line) + + def _set_logs_to_display(self): + """ + Sets the logs_to_display dict getting the toggled options from the ui + """ + self._logs_to_display = { + 'DEBUG': self.ui.btnDebug.isChecked(), + 'INFO': self.ui.btnInfo.isChecked(), + 'WARNING': self.ui.btnWarning.isChecked(), + 'ERROR': self.ui.btnError.isChecked(), + 'CRITICAL': self.ui.btnCritical.isChecked() + } + + def _save_log_to_file(self): + """ + Lets the user save the current log to a file + """ + fileName, filtr = QtGui.QFileDialog.getSaveFileName( + self, self.tr("Save As")) + + if fileName: + try: + with open(fileName, 'w') as output: + output.write(self.ui.txtLogHistory.toPlainText()) + output.write('\n') + logger.debug('Log saved in %s' % (fileName, )) + except IOError, e: + logger.error("Error saving log file: %r" % (e, )) + else: + logger.debug('Log not saved!') -- cgit v1.2.3