public void DisplayResource(IResource resource)
{
_displayedResource = resource;
string path = null;
try
{
path = Core.FileResourceManager.GetSourceFile(resource);
}
catch (Exception e)
{
Utils.DisplayException(e, "Error");
}
if (path != null && path.Length > 0)
{
string fileType = FileSystemTypes.GetFileType(Path.GetExtension(path));
if (fileType == null || fileType.Length == 0)
{
fileType = Path.GetExtension(path);
}
_infoLabel.Text = Core.ProductName + " is unable to process files of type \"" +
fileType + "\". To open this resource in associated application, click the button below.";
_openButton.Visible = true;
return;
}
_infoLabel.Text = Core.ProductName + " failed to determine type of this resource, it cannot be displayed :(";
_openButton.Visible = false;
}
/**
* finds or creates resource for a file
* for the UnknowFile type creates transient resources
*/
public IResource FindOrCreateFile(FileInfo fileInfo, bool createTransient)
{
string resourceType;
bool indexIt = false;
DateTime lastWriteTime = IOTools.GetLastWriteTime(fileInfo);
string extension = IOTools.GetExtension(fileInfo);
int size = (int)IOTools.GetLength(fileInfo);
string name = IOTools.GetName(fileInfo);
IResource file = FindFile(fileInfo);
if (file != null)
{
if (!Core.ResourceStore.IsOwnerThread())
{
return((IResource)_resourceAP.RunUniqueJob(_cUpdatingFileJob, _findOrCreateFileDelegate, fileInfo, createTransient));
}
file.BeginUpdate();
if (file.Type == FileProxy._unknownFileResourceType &&
(resourceType = _ftm.GetResourceTypeByExtension(extension)) != null)
{
file.ChangeType(resourceType);
indexIt = true;
}
if (name != file.GetPropText(Core.Props.Name))
{
file.SetProp(Core.Props.Name, name);
indexIt = true;
}
if (lastWriteTime != file.GetDateProp(Core.Props.Date))
{
file.SetProp(Core.Props.Date, lastWriteTime);
indexIt = true;
}
indexIt = indexIt || (!file.IsTransient && !file.HasProp("InTextIndex"));
file.SetProp(FileProxy._propSize, size);
string filetype = FileSystemTypes.GetFileType(extension);
file.SetProp(FileProxy._propFileType, filetype ?? "Unknown");
}
else
{
string directoryName = IOTools.GetDirectoryName(fileInfo);
IResource folder = FindOrCreateDirectory(directoryName);
if (folder == null)
{
return(null);
}
resourceType = _ftm.GetResourceTypeByExtension(extension);
/**
* look through pending file deletions
*/
IResourceList deletedFiles = Core.ResourceStore.FindResourcesWithProp(resourceType, FileProxy._propDeletedFile);
deletedFiles = deletedFiles.Intersect(
Core.ResourceStore.FindResources(null, FileProxy._propSize, size), true);
deletedFiles = deletedFiles.Intersect(
Core.ResourceStore.FindResources(null, Core.Props.Name, name), true);
if (deletedFiles.Count > 0)
{
file = deletedFiles[0];
if (!file.IsTransient)
{
if (!Core.ResourceStore.IsOwnerThread())
{
return((IResource)_resourceAP.RunUniqueJob(
_cUpdatingFileJob, _findOrCreateFileDelegate, fileInfo, createTransient));
}
file.BeginUpdate();
}
}
if (file == null)
{
if (resourceType != null && !createTransient)
{
if (!Core.ResourceStore.IsOwnerThread())
{
return((IResource)_resourceAP.RunUniqueJob(
_cUpdatingFileJob, _findOrCreateFileDelegate, fileInfo, createTransient));
}
file = Core.ResourceStore.BeginNewResource(resourceType);
indexIt = true;
}
else
{
if (!createTransient)
{
return(null);
}
if (resourceType == null)
{
resourceType = FileProxy._unknownFileResourceType;
}
file = Core.ResourceStore.NewResourceTransient(resourceType);
}
}
file.SetProp(FileProxy._propParentFolder, folder);
file.SetProp(FileProxy._propDirectory, directoryName);
file.SetProp(Core.Props.Name, name);
file.SetProp(Core.Props.Date, lastWriteTime);
file.SetProp(FileProxy._propSize, size);
string filetype = FileSystemTypes.GetFileType(extension);
file.SetProp(FileProxy._propFileType, filetype ?? "Unknown");
}
file.SetProp(FileProxy._propDeletedFile, false);
if (!file.IsTransient)
{
file.EndUpdate();
if (indexIt)
{
Core.TextIndexManager.QueryIndexing(file.Id);
}
}
return(file);
}
