protected override async Task OnAfterRenderAsync(bool firstRender)
{
await base.OnAfterRenderAsync(firstRender);
if (firstRender)
{
// Create a timer that will determine how quickly the preview updates after changes
_timer = new Timer(750);
_timer.Elapsed += OnTimerElapsed;
_timer.AutoReset = false;
// Register our own language keywords
List <string> keys = new();
var context = new SimpleCircuit.Parser.ParsingContext();
foreach (var factory in context.Factory.Factories)
{
foreach (var metadata in factory.Metadata)
{
keys.AddRange(metadata.Keys);
}
}
await _js.InvokeVoidAsync("registerLanguage", new object[] { keys.ToArray() });
var model = await _scriptEditor.GetModel();
await MonacoEditor.SetModelLanguage(model, "simpleCircuit");
await MonacoEditorBase.SetTheme("simpleCircuitTheme");
// Try to find the last saved script
bool hasScript = false;
if (_localStore != null)
{
string script = await _localStore.GetItemAsStringAsync("last_script");
string style = await _localStore.GetItemAsStringAsync("last_style");
if (!string.IsNullOrWhiteSpace(script))
{
if (!string.IsNullOrWhiteSpace(style))
{
await SetCurrentScript(script, style);
}
else
{
await SetCurrentScript(script, GraphicalCircuit.DefaultStyle);
}
hasScript = true;
}
}
// Give the user an initial demo
if (!hasScript)
{
await SetCurrentScript(Demo.Demos[0].Code, GraphicalCircuit.DefaultStyle);
}
}
}
private async Task <XmlDocument> ComputeXml(bool includeScript)
{
_errors = null;
_warnings = null;
var logger = new Logger();
XmlDocument doc = null;
try
{
var code = await _scriptEditor.GetValue();
var style = await _styleEditor.GetValue();
var context = new SimpleCircuit.Parser.ParsingContext();
context.Diagnostics = logger;
// Store the script and style for next time
await _localStore.SetItemAsStringAsync("last_script", code);
await _localStore.SetItemAsStringAsync("last_style", style);
await _js.InvokeVoidAsync("updateStyle", ModifyCSS(style));
// Parse the script
var lexer = SimpleCircuit.Parser.SimpleCircuitLexer.FromString(code);
SimpleCircuit.Parser.Parser.Parse(lexer, context);
var ckt = context.Circuit;
// Include XML data
ckt.Style = style;
if (includeScript)
{
ckt.Metadata.Add("script", code);
}
// We now need the last things to have executed
if (ckt.Count > 0 && logger.ErrorCount == 0)
{
doc = ckt.Render(logger, _jsTextFormatter);
}
}
catch (Exception ex)
{
logger.Post(new SimpleCircuit.Diagnostics.DiagnosticMessage(SimpleCircuit.Diagnostics.SeverityLevel.Error,
"Exception", ex.Message));
}
// Add our errors and warnings
string errors = logger.Error.ToString();
if (!string.IsNullOrWhiteSpace(errors))
{
_errors = (_errors == null) ? errors : _errors + Environment.NewLine + errors;
}
string warnings = logger.Warning.ToString();
if (!string.IsNullOrWhiteSpace(warnings))
{
_warnings = (_warnings == null) ? warnings : _warnings + Environment.NewLine + warnings;
}
return(doc);
}
