/// <summary>
/// Initializes a Autoprefixer
/// </summary>
private void Initialize()
{
if (_initialized)
{
return;
}
lock (_initializationSynchronizer)
{
if (_initialized)
{
return;
}
try
{
_jsEngine.EmbedHostObject(COUNTRY_STATISTICS_SERVICE_VARIABLE_NAME,
CountryStatisticsService.Instance);
Assembly assembly = this.GetType()
#if !NET40
.GetTypeInfo()
#endif
.Assembly
;
_jsEngine.ExecuteResource(ResourceHelpers.GetResourceName(AUTOPREFIXER_LIBRARY_FILE_NAME),
assembly);
_jsEngine.ExecuteResource(ResourceHelpers.GetResourceName(AUTOPREFIXER_HELPER_FILE_NAME),
assembly);
_jsEngine.Execute($"var autoprefixerHelper = new AutoprefixerHelper({_serializedOptions});");
}
catch (JsException e)
{
throw AutoprefixerErrorHelpers.WrapAutoprefixerLoadException(e, true);
}
_initialized = true;
}
}
/// <summary>
/// Constructs an instance of the Autoprefixer
/// </summary>
/// <param name="jsEngineFactory">JS engine factory</param>
/// <param name="options">Processing options</param>
public Autoprefixer(IJsEngineFactory jsEngineFactory, ProcessingOptions options)
{
if (jsEngineFactory == null)
{
throw new ArgumentNullException(nameof(jsEngineFactory));
}
_options = options ?? _defaultOptions;
_serializedOptions = SerializeProcessingOptions(_options);
try
{
_jsEngine = jsEngineFactory.CreateEngine();
}
catch (JsEngineLoadException e)
{
throw AutoprefixerErrorHelpers.WrapAutoprefixerLoadException(e);
}
catch (Exception e)
{
throw AutoprefixerErrorHelpers.WrapAutoprefixerLoadException(e, true);
}
}
/// <summary>
/// Constructs an instance of the Autoprefixer
/// </summary>
/// <param name="createJsEngineInstance">Delegate that creates an instance of JS engine</param>
/// <param name="options">Processing options</param>
public Autoprefixer(Func <IJsEngine> createJsEngineInstance, ProcessingOptions options)
{
if (createJsEngineInstance == null)
{
throw new ArgumentNullException(nameof(createJsEngineInstance));
}
_options = options ?? _defaultOptions;
_serializedOptions = SerializeProcessingOptions(_options);
try
{
_jsEngine = createJsEngineInstance();
}
catch (JsEngineLoadException e)
{
throw AutoprefixerErrorHelpers.WrapAutoprefixerLoadException(e);
}
catch (Exception e)
{
throw AutoprefixerErrorHelpers.WrapAutoprefixerLoadException(e, true);
}
}
