public void RemoveFromFavorites(WebView webView, NameValueCollection parameters)
{
var chordParams = new ChordParams(parameters);
var tokens = parameters["positions"].Split(',');
var positions = tokens.Select(i => int.Parse(i)).ToArray();
var id = $"{chordParams.Root}{chordParams.ChordType}";
Chord chord;
if (!Chord.TryParse(id, _currentSettings.conv, out chord))
{
return;
}
if (!Favorites.Chords.ContainsKey(chord))
{
return;
}
try
{
var layout = new GuitarChordLayout(chord, positions);
Favorites.Chords[chord].Remove(layout);
Favorites.Save();
var js = string.Format("setFavorite('.chord-layout[data-positions=\"{0}\"]', '{1}');", parameters["positions"], false);
webView.LoadUrl("javascript:" + js);
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine($"Cannot save favorites\n{e.Message}");
}
}
public void PlayChord(WebView webView, NameValueCollection parameters)
{
var chordParams = new ChordParams(parameters);
var id = parameters["id"];
float volume;
if (!float.TryParse(parameters["volume"], out volume))
{
volume = 1f;
}
if (!string.IsNullOrEmpty(id))
{
Chord chord;
if (!Chord.TryParse(id, NamingConvention.English, out chord))
{
return;
}
var c = new Note(Core.Models.Tone.C);
var minDistance = 3 + c.ChromaticDistance(chord.Notes[0]);
foreach (var note in chord.Notes)
{
var pos = 3 + c.ChromaticDistance(note);
if (pos < minDistance)
{
pos += 12;
}
var playRate = Note.HalfStepsToPlayRate(pos);
_soundPool.Play(_soundIds[1], volume, volume, 0, 0, playRate);
Thread.Sleep(50);
}
return;
}
var intPositions = parameters["positions"]?.Split(',')?.Select(i => int.Parse(i))?.ToArray();
if (intPositions == null)
{
return;
}
for (var n = 0; n < 2; n++)
{
for (var i = 0; i < intPositions.Length; i++)
{
var halfSteps = intPositions[i];
if (halfSteps >= 0)
{
var playRate = Note.HalfStepsToPlayRate(halfSteps);
_soundPool.Play(_soundIds[i], volume, volume, 0, 0, playRate);
if (n == 0)
{
Thread.Sleep(200);
}
else
{
Thread.Sleep(50);
}
}
}
Thread.Sleep(200);
}
}
public void FindChord(WebView webView, NameValueCollection parameters)
{
string page;
if (string.IsNullOrWhiteSpace(parameters["note"]))
{
var chordParams = new ChordParams(parameters);
var model = new FindChordModel
{
conv = _currentSettings.conv,
Strict = chordParams.Strict
};
var template = new FindChordView()
{
Model = model
};
page = template.GenerateString();
}
else
{
Note note;
var chordParams = new ChordParams(parameters);
var tokens = parameters["note"].Split(',');
var notes = tokens.Select(i => Note.TryParse(i, _currentSettings.conv, out note) ? note : null)
.Where(i => i != null)
.ToArray();
var chords = Chord.Find(notes, chordParams.Strict);
_allowPartial = true;
if (chords.Length > 0)
{
var chord = chords.First();
_currentRoot = chord.Root;
_currentChordType = chord.ChordType;
if (chords.Length > 1)
{
_allRoots = chords.Select(i => i.Root).ToArray();
_allChordTypes = chords.Select(i => i.ChordType.ToDescription()).ToArray();
}
else
{
_allRoots = null;
_allChordTypes = null;
}
parameters.Add("partial", "true");
ShowChordResults(webView, parameters);
return;
}
var model = new FindChordModel
{
conv = _currentSettings.conv,
Strict = chordParams.Strict,
SelectedNotes = notes.Select(i => i.ToString(_currentSettings.conv))
.ToArray(),
Error = "No chord found"
};
var template = new FindChordView()
{
Model = model
};
page = template.GenerateString();
}
webView.LoadDataWithBaseURL("file:///android_asset/?page=FindChord", page, "text/html", "UTF-8", null);
}
