/// <summary>
/// Class constructor
/// </summary>
public DirDiffDocViewViewModel(EventHandler <OpenFileDiffEventArgs> openFileContentDiffRequestHandler
, DirDiffArgs args)
: this()
{
DirDiffDoc = AehnlichDirViewModelLib.ViewModels.Factory.ConstructAppViewModel(args);
//DirDiffDoc.DirDiffDoc.CompareFilesRequest += openFileContentDiffRequestHandler;
WeakEventManager <IDirDiffDocViewModel, OpenFileDiffEventArgs> .AddHandler(
DirDiffDoc.DirDiffDoc, "CompareFilesRequest", openFileContentDiffRequestHandler);
}
/// <summary>
/// Class constructor from specific diff options (rather than using defaults)
/// </summary>
/// <param name="args"></param>
public AppViewModel(DirDiffArgs args)
: this()
{
_Args = args;
// Update redundant copy of file diff mode viewmodel selection in this viewmodel
// This enables the user to change this property within the document view
_FileDiffMode.DiffFileModeSelected =
_FileDiffMode.DiffFileModes.ToList().First(i => i.Key == (uint)args.CompareDirFileMode);
_LeftDirPath = args.LeftDir;
_RightDirPath = args.RightDir;
}
/// <summary>
/// Class constructor from specific diff options (rather than using defaults)
/// </summary>
/// <param name="args"></param>
/// <param name="dataSourceFactory"></param>
public AppViewModel(DirDiffArgs args,
IDataSourceFactory dataSourceFactory)
: this()
{
_Args = args;
// Get a data object provider for browsing directories and files
_DataSource = dataSourceFactory.CreateDataSource();
// Update redundant copy of file diff mode viewmodel selection in this viewmodel
// This enables the user to change this property within the document view
_FileDiffMode.DiffFileModeSelected =
_FileDiffMode.DiffFileModes.ToList().First(i => i.Key == (uint)args.CompareDirFileMode);
_LeftDirPath = args.LeftDir;
_RightDirPath = args.RightDir;
}
internal void ShowDifferences(DirDiffArgs args,
IDirectoryDiffRoot diffResults
)
{
try
{
SetData(diffResults, _CurrentViewMode);
_Results = diffResults;
_CompareOptions = args; // Record comparison options for later
IsDiffDataAvailable = true;
}
catch
{
IsDiffDataAvailable = false;
}
}
internal DirDiffArgs GetDirDiffSetup()
{
var setup = new DirDiffArgs(LeftDirectoryPath, RightDirectoryPath);
setup.CompareDirFileMode = this.FileDiffMode.DiffFileModeSelected.ModeKey;
setup.Recursive = this.IsRecursive;
setup.ShowOnlyInA = ShowOnlyInA;
setup.ShowOnlyInB = ShowOnlyInB;
setup.ShowDifferent = ShowIfDifferent;
setup.ShowSame = ShowIfSameFile;
setup.IgnoreDirectoryComparison = !ShowIfSameDirectory;
// Set file filter aka '*.cs' if any selected
if (string.IsNullOrEmpty(FilterText) == false)
{
setup.FileFilter = new DirectoryDiffFileFilter(FilterText, IncludeFilter);
}
return(setup);
}
/// <summary>
/// Gets an initialized application viewmodel.
/// </summary>
/// <param name="args">Options to be used in this directory diff.</param>
/// <returns></returns>
public static IAppViewModel ConstructAppViewModel(DirDiffArgs args)
{
return(new AppViewModel(args));
}
private void CompareFilesCommand_Executed(string leftDir,
string rightDir,
DiffDirFileMode dirFileMode)
{
if (_cancelTokenSource.IsCancellationRequested == true)
{
return;
}
DirDiffArgs args = _Args;
_Args.CompareDirFileMode = dirFileMode;
// Construct deffault options if there are no others
if (_Args == null)
{
args = new DirDiffArgs(leftDir, rightDir);
}
else
{
_Args.LeftDir = leftDir;
_Args.RightDir = rightDir;
}
var diff = new DirectoryDiff(args);
try
{
_DiffProgress.ResetProgressValues(_cancelTokenSource.Token);
Task.Factory.StartNew <IDiffProgress>(
(p) => diff.Execute(args.LeftDir, args.RightDir, _DiffProgress, _DataSource)
, TaskCreationOptions.LongRunning, _cancelTokenSource.Token)
.ContinueWith((r) =>
{
bool onError = false;
bool taskCancelled = false;
if (_cancelTokenSource != null)
{
// Re-create cancellation token if this task was cancelled
// to support cancelable tasks in the future
if (_cancelTokenSource.IsCancellationRequested)
{
taskCancelled = true;
_cancelTokenSource.Dispose();
_cancelTokenSource = new CancellationTokenSource();
}
}
if (taskCancelled == false)
{
if (r.Result == null)
{
onError = true;
}
else
{
if (r.Result.ResultData == null)
{
onError = true;
}
}
}
if (onError == false && taskCancelled == false)
{
var diffResults = r.Result.ResultData as IDirectoryDiffRoot;
_DirDiffDoc.ShowDifferences(args, diffResults);
}
else
{
// Display Error
}
});
}
catch
{
// Handle task based error and display error
}
}
/// <summary>
/// Gets an initialized application viewmodel.
/// </summary>
/// <param name="args">Options to be used in this directory diff.</param>
/// <returns></returns>
public static IAppViewModel ConstructAppViewModel(DirDiffArgs args)
{
return(new AppViewModel(args, new FsDataLib.Dir.DirDataSourceFactory()));
}
