From 6c8bcdd5de65d3fd7e2611abf70454a21ba53c3c Mon Sep 17 00:00:00 2001
From: Jakob Heher <jakob.heher@iaik.tugraz.at>
Date: Fri, 18 Feb 2022 15:52:44 +0100
Subject: various refactors to start making signature placeholder code more
 readable

---
 .../pdfover/gui/workflow/states/BKUSelectionState.java    | 11 ++++++-----
 .../at/asit/pdfover/gui/workflow/states/OpenState.java    | 15 +++++++++------
 2 files changed, 15 insertions(+), 11 deletions(-)

(limited to 'pdf-over-gui/src/main/java/at')

diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/BKUSelectionState.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/BKUSelectionState.java
index bed41f4a..8cca67a0 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/BKUSelectionState.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/BKUSelectionState.java
@@ -69,9 +69,11 @@ public class BKUSelectionState extends State {
 	public void run() {
 		Status status = getStateMachine().getStatus();
 		State previousState = status.getPreviousState();
-		if (!(previousState instanceof OpenState) && 
-			!(previousState instanceof PositioningState) &&
-			!(previousState instanceof BKUSelectionState)) {
+		if (!(
+		  (previousState instanceof OpenState) ||
+		  (previousState instanceof PositioningState) ||
+		  (previousState instanceof BKUSelectionState)
+		)) {
 			status.setBKU(BKUs.NONE);
 		} else if(!(status.getPreviousState() instanceof BKUSelectionState)) {
 			ConfigProvider config = getStateMachine().getConfigProvider();
@@ -79,8 +81,7 @@ public class BKUSelectionState extends State {
 		}
 
 		if(status.getBKU() == BKUs.NONE) {
-			BKUSelectionComposite selection = this
-					.getSelectionComposite();
+			BKUSelectionComposite selection = this.getSelectionComposite();
 
 			getStateMachine().getGUIProvider().display(selection);
 			selection.layout();
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/OpenState.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/OpenState.java
index 1b734b32..0b0929dd 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/OpenState.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/OpenState.java
@@ -81,10 +81,10 @@ public class OpenState extends State {
 
 	@Override
 	public void run() {
+		ConfigProvider config = getStateMachine().getConfigProvider();
 		Status status = getStateMachine().getStatus();
 		if (!(status.getPreviousState() instanceof PrepareConfigurationState)
 				&& !(status.getPreviousState() instanceof OpenState)) {
-			ConfigProvider config = getStateMachine().getConfigProvider();
 			status.setBKU(config.getDefaultBKU());
 			status.setDocument(null);
 			status.setSignaturePosition(config.getDefaultSignaturePosition());
@@ -107,13 +107,16 @@ public class OpenState extends State {
 
 		// scan for signature placeholders
 		// - see if we want to scan for placeholders in the settings
-		if (getStateMachine().getConfigProvider().getEnablePlaceholderUsage()) {
+		if (config.getEnablePlaceholderUsage()) {
 			try {
 				// - scan for placeholders
 				PDDocument pddocument = PDDocument.load(getStateMachine().getStatus().getDocument());
 
+				boolean useSignatureFields = config.getUseSignatureFields();
+				boolean useMarker = config.getUseMarker();
+				log.debug("Placeholder usage enabled. Signature fields: {}, QR Markers: {}", useSignatureFields, useMarker);
 				//first check the signature fields placeholder 
-				if (getStateMachine().getConfigProvider().getUseSignatureFields()) {
+				if (useSignatureFields) {
 
 					List<String> fields = SignatureFieldsAndPlaceHolderExtractor.findEmptySignatureFields(pddocument);
 
@@ -156,14 +159,13 @@ public class OpenState extends State {
 						}
 					}
 					// second check if qr code placeholder search is enabled
-				} else if (getStateMachine().getConfigProvider().getUseMarker()) {
+				} else if (useMarker) {
 
 					SignaturePlaceholderData signaturePlaceholderData = SignatureFieldsAndPlaceHolderExtractor.getNextUnusedSignaturePlaceHolder(pddocument);
 
 					if (null != signaturePlaceholderData) {
 
-						// create a dialog with ok and cancel buttons and a question
-						// icon
+						// create a dialog with ok and cancel buttons and a question icon
 						MessageBox dialog = new MessageBox(getStateMachine().getGUIProvider().getMainShell(),
 								SWT.ICON_QUESTION | SWT.YES | SWT.NO);
 						dialog.setText(Messages.getString("dataSourceSelection.usePlaceholderTitle")); //$NON-NLS-1$
@@ -187,6 +189,7 @@ public class OpenState extends State {
 						} else {
 							getStateMachine().getStatus().setSearchForPlaceholderSignature(false);
 						}
+						// TODO: why does this use a different logic (via PositioningState) than the signature placeholders?
 					}
 
 				} else {
-- 
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