Add logger window connected with the leap_handler

2 files changed, 279 insertions, 0 deletions

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 <http://www.gnu.org/licenses/>.
+
+"""
+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!')
diff --git a/src/leap/gui/ui/loggerwindow.ui b/src/leap/gui/ui/loggerwindow.ui
new file mode 100644
index 00000000..28325cdf
--- /dev/null
+++ b/src/leap/gui/ui/loggerwindow.ui
@@ -0,0 +1,155 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>LoggerWindow</class>
+ <widget class="QWidget" name="LoggerWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>648</width>
+    <height>469</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Logs</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../../../../data/resources/mainwindow.qrc">
+    <normaloff>:/images/leap-color-big.png</normaloff>:/images/leap-color-big.png</iconset>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="2" column="0" colspan="2">
+    <widget class="QTextBrowser" name="txtLogHistory"/>
+   </item>
+   <item row="0" column="0" colspan="2">
+    <layout class="QHBoxLayout" name="horizontalLayout_2">
+     <item>
+      <widget class="QPushButton" name="btnDebug">
+       <property name="text">
+        <string>Debug</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../../../../data/resources/loggerwindow.qrc">
+         <normaloff>:/images/oxygen-icons/script-error.png</normaloff>:/images/oxygen-icons/script-error.png</iconset>
+       </property>
+       <property name="checkable">
+        <bool>true</bool>
+       </property>
+       <property name="checked">
+        <bool>true</bool>
+       </property>
+       <property name="flat">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="btnInfo">
+       <property name="text">
+        <string>Info</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../../../../data/resources/loggerwindow.qrc">
+         <normaloff>:/images/oxygen-icons/dialog-information.png</normaloff>:/images/oxygen-icons/dialog-information.png</iconset>
+       </property>
+       <property name="checkable">
+        <bool>true</bool>
+       </property>
+       <property name="checked">
+        <bool>true</bool>
+       </property>
+       <property name="flat">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="btnWarning">
+       <property name="text">
+        <string>Warning</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../../../../data/resources/loggerwindow.qrc">
+         <normaloff>:/images/oxygen-icons/dialog-warning.png</normaloff>:/images/oxygen-icons/dialog-warning.png</iconset>
+       </property>
+       <property name="checkable">
+        <bool>true</bool>
+       </property>
+       <property name="checked">
+        <bool>true</bool>
+       </property>
+       <property name="flat">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="btnError">
+       <property name="text">
+        <string>Error</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../../../../data/resources/loggerwindow.qrc">
+         <normaloff>:/images/oxygen-icons/dialog-error.png</normaloff>:/images/oxygen-icons/dialog-error.png</iconset>
+       </property>
+       <property name="checkable">
+        <bool>true</bool>
+       </property>
+       <property name="checked">
+        <bool>true</bool>
+       </property>
+       <property name="flat">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="btnCritical">
+       <property name="text">
+        <string>Critical</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../../../../data/resources/loggerwindow.qrc">
+         <normaloff>:/images/oxygen-icons/edit-bomb.png</normaloff>:/images/oxygen-icons/edit-bomb.png</iconset>
+       </property>
+       <property name="checkable">
+        <bool>true</bool>
+       </property>
+       <property name="checked">
+        <bool>true</bool>
+       </property>
+       <property name="flat">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="btnSave">
+       <property name="text">
+        <string>Save to file</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../../../../data/resources/loggerwindow.qrc">
+         <normaloff>:/images/oxygen-icons/document-save-as.png</normaloff>:/images/oxygen-icons/document-save-as.png</iconset>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <tabstops>
+  <tabstop>btnDebug</tabstop>
+  <tabstop>btnInfo</tabstop>
+  <tabstop>btnWarning</tabstop>
+  <tabstop>btnError</tabstop>
+  <tabstop>btnCritical</tabstop>
+  <tabstop>btnSave</tabstop>
+  <tabstop>txtLogHistory</tabstop>
+ </tabstops>
+ <resources>
+  <include location="../../../../data/resources/loggerwindow.qrc"/>
+  <include location="../../../../data/resources/mainwindow.qrc"/>
+ </resources>
+ <connections/>
+</ui>