private void RenderSearchChanges(SearchHistory?searchHistory = null)
{
var totalItems = !searchHistory.HasValue ? shell.History.Count : searchHistory.Value.SearchResults.Count;
var currentItem = !searchHistory.HasValue ? 0 : searchHistory.Value.SelectedItem + 1;
var match = !searchHistory.HasValue || searchHistory.Value.SearchResults.Count == 0 ? string.Empty : searchHistory.Value.SearchResults[searchHistory.Value.SelectedItem];
var minimalPrompt = "[" + currentItem + "/" + totalItems + "]: ";
var matchedEntryMaxLength = implementation.WindowWidth - minimalPrompt.Length;
if (match.Length > matchedEntryMaxLength)
{
match = match.Substring(0, matchedEntryMaxLength);
}
ColorString highlightedLine = string.Empty;
if (searchHistory.HasValue && !string.IsNullOrWhiteSpace(match))
{
var notMatchedString = new StringBuilder();
var matchingPositions = FindAllIndexesOf(match.ToLowerInvariant(), searchHistory.Value.Term.ToLowerInvariant());
for (int posInStr = 0; searchHistory != null && posInStr < match.Length; posInStr++)
{
if (matchingPositions.Contains(posInStr))
{
highlightedLine += notMatchedString.ToString() + new ColorString(searchHistory.Value.Term, Color.Green);
notMatchedString.Clear();
posInStr += searchHistory.Value.Term.Length - 1;
}
else
{
notMatchedString.Append(match[posInStr]);
}
}
highlightedLine += notMatchedString.ToString();
}
// need to use the implementation functions as we are writing off the current line
var pos = implementation.CursorLeft;
implementation.CursorVisible = false;
implementation.WriteLine();
implementation.Write(new string(' ', implementation.WindowWidth - 1));
implementation.CursorLeft = 0;
implementation.Write(minimalPrompt);
// our write function sets both implementation.CursorLeft and CursorPosition
// we need to restore these to ensure we dont go out of sync
var cpOld = ci.CursorPosition;
ci.CursorPosition = minimalPrompt.Length;
ci.Write(highlightedLine);
ci.CursorPosition = cpOld;
implementation.CursorTop--;
implementation.CursorLeft = pos;
implementation.CursorVisible = true;
}
public void Write()
{
using (var ms = new MemoryStream())
{
var fakeShell = new Shell();
var mockConsole = new MockConsole();
var console = new ConsoleImproved(mockConsole, fakeShell);
console.Write("hello");
console.WriteLine("world");
Assert.AreEqual("helloworld\n", mockConsole.Output.ToString());
}
}