void TotalMatch(NameTextPair selectedEntry)
{
totalMatch = selectedEntry;
if (SelectEntry(selectedEntry))
{
EnableSelectButton();
}
}
bool SelectEntry(NameTextPair entry)
{
return(entry.IsDirectory ? SelectDirs(selectOptions) : SelectFiles(selectOptions));
}
void TotalUnmatch()
{
DisableSelectButton();
totalMatch = null;
}
void PathChanged(TextChangedEventArgs args)
{
string oldPath = Path.Combine(currentDirectory, currentFileName);
string newDirPath = null;
if (!IsValidPath(args.Text))
{
PathChangeFailed(oldPath);
return;
}
try {
string newPath = args.Text;
newDirPath = newPath == "" ? "" : Path.GetDirectoryName(newPath);
if (newDirPath == null)
{
PathChangeFailed(oldPath);
return;
}
}
catch (ArgumentException) {
PathChangeFailed(oldPath);
return;
}
catch (PathTooLongException) {
PathChangeFailed(oldPath);
return;
}
//If directory changed, show the contents of the new directory
if (newDirPath != currentDirectory)
{
//Load the new directory contents
if (!LoadDirectory(newDirPath))
{
//The new directory could not be loaded, revert change
PathChangeFailed(oldPath);
return;
}
}
//Path may not represent the current directory, but some files in it
// Later, after we know the fileName, we check it and set it again if needed
CurrentDirDeselected();
string fileName = null;
try {
fileName = Path.GetFileName(args.Text);
}
catch (ArgumentException)
{
//Hide all items, no item matches invalid fileName
foreach (var entry in cDirEntries)
{
entry.Text.Visible = false;
}
return;
}
//At this point we are certain that both dirPath and fileName are correct, set them as current
currentDirectory = newDirPath;
currentFileName = fileName;
//If empty filename, path points to the directory itself
if (fileName == "")
{
TotalUnmatch();
CurrentDirSelected();
foreach (var entry in cDirEntries)
{
entry.Text.Visible = true;
}
return;
}
//Path points to some files in the directory
int matches = 0;
NameTextPair lastMatch = null;
foreach (var entry in cDirEntries)
{
//Show only the matching files
bool match = entry.Name.StartsWith(fileName);
entry.Text.Visible = match;
if (match)
{
matches++;
lastMatch = entry;
}
}
//If only one file matches, enable selecting
if (matches == 1)
{
TotalMatch(lastMatch);
}
else
{
TotalUnmatch();
}
}
