98 lines
2.7 KiB
C#
98 lines
2.7 KiB
C#
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/*
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* Copyright (c) 2017 ETH Zürich, Educational Development and Technology (LET)
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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using System;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Documents;
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using System.Windows.Media;
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using SafeExamBrowser.Contracts.I18n;
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using SafeExamBrowser.Contracts.Logging;
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namespace SafeExamBrowser.UserInterface.Classic.ViewModels
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{
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internal class LogViewModel : ILogObserver
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{
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private IText text;
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private ScrollViewer scrollViewer;
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private TextBlock textBlock;
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public string WindowTitle => text.Get(TextKey.LogWindow_Title);
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public LogViewModel(IText text, ScrollViewer scrollViewer, TextBlock textBlock)
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{
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this.text = text;
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this.scrollViewer = scrollViewer;
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this.textBlock = textBlock;
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}
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public void Notify(ILogContent content)
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{
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if (content is ILogText)
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{
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AppendLogText(content as ILogText);
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}
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else if (content is ILogMessage)
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{
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AppendLogMessage(content as ILogMessage);
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}
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else
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{
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throw new NotImplementedException($"The default formatter is not yet implemented for log content of type {content.GetType()}!");
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}
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scrollViewer.Dispatcher.Invoke(scrollViewer.ScrollToEnd);
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}
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private void AppendLogText(ILogText logText)
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{
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textBlock.Dispatcher.Invoke(() =>
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{
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var isHeader = logText.Text.StartsWith("/* ");
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var isComment = logText.Text.StartsWith("# ");
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var brush = isHeader || isComment ? Brushes.ForestGreen : textBlock.Foreground;
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textBlock.Inlines.Add(new Run($"{logText.Text}{Environment.NewLine}")
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{
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FontWeight = isHeader ? FontWeights.Bold : FontWeights.Normal,
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Foreground = brush
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});
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});
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}
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private void AppendLogMessage(ILogMessage message)
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{
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textBlock.Dispatcher.Invoke(() =>
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{
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var date = message.DateTime.ToString("yyyy-MM-dd HH:mm:ss.fff");
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var severity = message.Severity.ToString().ToUpper();
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var threadInfo = $"{message.ThreadInfo.Id}{(message.ThreadInfo.HasName ? ": " + message.ThreadInfo.Name : string.Empty)}";
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var infoRun = new Run($"{date} [{threadInfo}] - ") { Foreground = Brushes.Gray };
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var messageRun = new Run($"{severity}: {message.Message}{Environment.NewLine}") { Foreground = GetBrushFor(message.Severity) };
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textBlock.Inlines.Add(infoRun);
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textBlock.Inlines.Add(messageRun);
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});
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}
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private Brush GetBrushFor(LogLevel severity)
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{
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switch (severity)
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{
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case LogLevel.Error:
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return Brushes.Red;
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case LogLevel.Warning:
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return Brushes.Yellow;
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default:
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return Brushes.White;
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}
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}
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}
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}
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