/// <summary>
/// See IDigitalSignatureProvider
/// </summary>
void IDigitalSignatureProvider.RemoveRequestSignature(Guid spotId)
{
AssertIsSignable();
XpsSignatureDefinition definition = FindSignatureDefinition(spotId);
if (definition != null)
{
FixedDocument.RemoveSignatureDefinition(definition);
FixedDocument.CommitSignatureDefinition();
}
// Loop through the signature list and remove the entry for the
// requested signature
foreach (DigitalSignature signature in DigitalSignatureList)
{
if (signature.GuidID == spotId)
{
// We only want to remove unsigned signature definitions
// (requested signatures) and not actual signatures.
if (signature.SignatureState == SignatureStatus.NotSigned)
{
DigitalSignatureList.Remove(signature);
}
// It is safe to remove an element from the list that we're
// currently enumerating because we stop enumerating as soon
// as we find the element we're looking for.
break;
}
}
}
/// <summary>
/// See IDigitalSignatureProvider
/// </summary>
Guid IDigitalSignatureProvider.AddRequestSignature(DigitalSignature digitalSignature)
{
AssertIsSignable();
// Create guid used for signature ID
Guid guidID = Guid.NewGuid();
// Create a new SignatureDefinition
XpsSignatureDefinition xpsSignatureDefinition = new XpsSignatureDefinition();
// Use the digSig to setup the SignatureDefinition.
xpsSignatureDefinition.RequestedSigner = digitalSignature.SubjectName;
xpsSignatureDefinition.Intent = digitalSignature.Reason;
xpsSignatureDefinition.SigningLocale = digitalSignature.Location;
xpsSignatureDefinition.SignBy = digitalSignature.SignedOn;
// Use our new guid to setup the ID
xpsSignatureDefinition.SpotId = guidID;
// Add the signature definition to the document
FixedDocument.AddSignatureDefinition(xpsSignatureDefinition);
FixedDocument.CommitSignatureDefinition();
// Set the signature's status to Not Signed before adding to our list
digitalSignature.SignatureState = SignatureStatus.NotSigned;
// Add the new signature to our list of signatures and definitions
DigitalSignatureList.Add(digitalSignature);
return(guidID);
}