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ILogFileOutlinePlugin's content is displayed in the outline side panel …
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98 changes: 98 additions & 0 deletions
98
src/Tailviewer/Ui/Controls/SidePanel/Outline/LogFileOutlineViewModelProxy.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| using System; | ||
| using System.ComponentModel; | ||
| using System.Reflection; | ||
| using System.Windows; | ||
| using log4net; | ||
| using Tailviewer.BusinessLogic.LogFiles; | ||
| using Tailviewer.Ui.Outline; | ||
|
|
||
| namespace Tailviewer.Ui.Controls.SidePanel.Outline | ||
| { | ||
| /// <summary> | ||
| /// Responsible for wrapping a <see cref="ILogFileOutlineViewModel" /> and catching all of its unhandled | ||
| /// exceptions, if necessary. | ||
| /// </summary> | ||
| internal sealed class LogFileOutlineViewModelProxy | ||
| : ILogFileOutlineViewModel | ||
| { | ||
| private static readonly ILog Log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); | ||
| private readonly ILogFileOutlineViewModel _innerViewModel; | ||
|
|
||
| private readonly ILogFileOutlinePlugin _plugin; | ||
| private readonly IServiceContainer _services; | ||
|
|
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| public LogFileOutlineViewModelProxy(ILogFileOutlinePlugin plugin, IServiceContainer services, ILogFile logFile) | ||
| { | ||
| _plugin = plugin; | ||
| _services = services; | ||
| _innerViewModel = TryCreateViewModel(services, plugin, logFile); | ||
| } | ||
|
|
||
| #region Implementation of INotifyPropertyChanged | ||
|
|
||
| #pragma warning disable 67 | ||
| public event PropertyChangedEventHandler PropertyChanged; | ||
| #pragma warning restore 67 | ||
|
|
||
| #endregion | ||
|
|
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| private static ILogFileOutlineViewModel TryCreateViewModel(IServiceContainer services, | ||
| ILogFileOutlinePlugin plugin, | ||
| ILogFile logFile) | ||
| { | ||
| try | ||
| { | ||
| return plugin.CreateViewModel(services, logFile); | ||
| } | ||
| catch (Exception e) | ||
| { | ||
| Log.ErrorFormat("Caught unexpected exception: {0}", e); | ||
| return null; | ||
| } | ||
| } | ||
|
|
||
| public FrameworkElement TryCreateContent() | ||
| { | ||
| if (_innerViewModel == null) | ||
| return null; | ||
|
|
||
| try | ||
| { | ||
| return _plugin.CreateContentPresenterFor(_services, _innerViewModel); | ||
| } | ||
| catch (Exception e) | ||
| { | ||
| Log.ErrorFormat("Caught unexpected exception: {0}", e); | ||
| return null; | ||
| } | ||
| } | ||
|
|
||
| #region Implementation of IDisposable | ||
|
|
||
| public void Dispose() | ||
| { | ||
| try | ||
| { | ||
| _innerViewModel?.Dispose(); | ||
| } | ||
| catch (Exception e) | ||
| { | ||
| Log.ErrorFormat("Caught unexpected exception: {0}", e); | ||
| } | ||
| } | ||
|
|
||
| public void Update() | ||
| { | ||
| try | ||
| { | ||
| _innerViewModel?.Update(); | ||
| } | ||
| catch (Exception e) | ||
| { | ||
| Log.ErrorFormat("Caught unexpected exception: {0}", e); | ||
| } | ||
| } | ||
|
|
||
| #endregion | ||
| } | ||
| } |
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