public PdfConvertWorkItem(
IHtmlToPdfDocument document,
Func <int, Stream> streamFunc)
: base(streamFunc)
{
Document = document ?? throw new ArgumentNullException(nameof(document));
}
internal (IntPtr converterPtr, IntPtr globalSettingsPtr, List <IntPtr> objectSettingsPtrs) CreateConverter(
IHtmlToPdfDocument document)
{
if (document is null)
{
throw new ArgumentNullException(nameof(document));
}
var globalSettings = WkHtmlToPdfModule.CreateGlobalSettings();
ApplyConfig(globalSettings, document.GlobalSettings, isGlobal: true);
var converter = WkHtmlToPdfModule.CreateConverter(globalSettings);
var objectSettingsPtr = new List <IntPtr>();
foreach (var obj in document.ObjectSettings)
{
if (obj == null)
{
continue;
}
var objectSettings = WkHtmlToPdfModule.CreateObjectSettings();
objectSettingsPtr.Add(objectSettings);
ApplyConfig(objectSettings, obj, isGlobal: false);
AddContent(converter, objectSettings, obj);
}
return(converter, globalSettings, objectSettingsPtr);
}
public Task <bool> ConvertAsync(
IHtmlToPdfDocument document,
Func <int, Stream> createStreamFunc,
CancellationToken token)
{
var item = new PdfConvertWorkItem(document, createStreamFunc);
_engine.AddConvertWorkItem(item, token);
return(item.TaskCompletionSource.Task);
}
public bool Convert(IHtmlToPdfDocument document, Func <int, Stream> createStreamFunc)
{
if (document is null)
{
throw new ArgumentNullException(nameof(document));
}
if (createStreamFunc is null)
{
throw new ArgumentNullException(nameof(createStreamFunc));
}
if (document.ObjectSettings.Count == 0)
{
throw new ArgumentException(
"No objects is defined in document that was passed. At least one object must be defined.");
}
ProcessingDocument = document;
var(converterPtr, globalSettingsPtr, objectSettingsPtrs) = CreateConverter(document);
RegisterEvents(converterPtr);
try
{
var converted = WkHtmlToPdfModule.Convert(converterPtr);
if (converted)
{
WkHtmlToPdfModule.GetOutput(converterPtr, createStreamFunc);
}
return(converted);
}
finally
{
for (int i = objectSettingsPtrs.Count - 1; i >= 0; i--)
{
WkHtmlToPdfModule.DestroyObjectSetting(objectSettingsPtrs[i]);
}
WkHtmlToPdfModule.DestroyGlobalSetting(globalSettingsPtr);
WkHtmlToPdfModule.DestroyConverter(converterPtr);
ProcessingDocument = null;
}
}
