fix(Sign): show drawing prompt in GRAPHIC_ONLY mode without placed element

needCreateSignature computed was duplicating the validator logic and also
required a placed visual element box, so it returned false for clickToSign
documents in GRAPHIC_ONLY mode.

Added signerHasSignRequest computed (true when the current user has a
signRequestId) and pass it to requirementValidator.getFirstUnmetRequirement()
in both confirmSignDocument and executeSigningAction so the validator can
prompt for the signature drawing even when no element box was placed.

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

src/views/SignPDF/_partials/Sign.vue

@@ -268,32 +268,24 @@ export default {
 			return this.elements.length > 0
 		},
 		needCreateSignature() {
+			if (!this.canCreateSignature || this.hasSignatures) {
+				return false
+			}
 			const document = this.signStore.document || {}
 			const signer = document?.signers?.find(row => row.me) || {}
-
-			const signRequestIds = new Set()
-			if (signer.signRequestId) {
-				signRequestIds.add(String(signer.signRequestId))
-			}
-			if (Array.isArray(document?.files)) {
-				document.files
-					.flatMap(file => getFileSigners(file))
-					.filter(row => row.me && row.signRequestId)
-					.forEach(row => signRequestIds.add(String(row.signRequestId)))
-			}
-
-			const visibleElements = getVisibleElementsFromDocument(document)
-			return signRequestIds.size > 0
-				&& visibleElements.some(row => signRequestIds.has(String(row.signRequestId)))
-				&& !this.hasSignatures
-				&& this.canCreateSignature
+			return !!signer.signRequestId
 		},
 		needIdentificationDocuments() {
 			return this.identificationDocumentStore.showDocumentsComponent()
 		},
 		canCreateSignature() {
 			return getCapabilities()?.libresign?.config?.['sign-elements']?.['can-create-signature'] === true
 		},
+		signerHasSignRequest() {
+			const doc = this.signStore.document || {}
+			const signer = doc?.signers?.find(row => row.me) || {}
+			return !!signer.signRequestId
+		},
 		ableToSign() {
 			return this.signStore.ableToSign
 		},
@@ -520,6 +512,7 @@ export default {
 				errors: this.signStore.errors,
 				hasSignatures: this.hasSignatures,
 				canCreateSignature: this.canCreateSignature,
+				signerHasSignRequest: this.signerHasSignRequest,
 			})
 
 			const result = this.actionHandler.handleAction('sign', { unmetRequirement })
@@ -544,6 +537,7 @@ export default {
 				errors: this.signStore.errors,
 				hasSignatures: this.hasSignatures,
 				canCreateSignature: this.canCreateSignature,
+				signerHasSignRequest: this.signerHasSignRequest,
 			})
 
 			const config = unmetRequirement ? { unmetRequirement } : {}