From 7d476d3d59449e6a0a7dd2cd9c2b081cece6d1d3 Mon Sep 17 00:00:00 2001
From: Jozef Tomek <jozef.tomek.sk@gmail.com>
Date: Sat, 8 Jun 2024 02:32:51 +0200
Subject: [PATCH] Fix styling enhancements menu not always reflecting Javadoc
 content

- incorrect text was searched for inside HTML content to see if
enhancements are present
- menu actions for enhancements enabled state were not set / left only
when enhancements were present in content

Fixes #1442
---
 .../JavaElementLabelComposerCore.java         |  4 +--
 .../ui/viewsupport/JavaElementLinks.java      | 28 ++++++++++++-------
 .../SignatureStylingMenuToolbarAction.java    |  6 ++--
 3 files changed, 24 insertions(+), 14 deletions(-)

diff --git a/org.eclipse.jdt.core.manipulation/common/org/eclipse/jdt/internal/core/manipulation/JavaElementLabelComposerCore.java b/org.eclipse.jdt.core.manipulation/common/org/eclipse/jdt/internal/core/manipulation/JavaElementLabelComposerCore.java
index f5c72d8700c..352957340d4 100644
--- a/org.eclipse.jdt.core.manipulation/common/org/eclipse/jdt/internal/core/manipulation/JavaElementLabelComposerCore.java
+++ b/org.eclipse.jdt.core.manipulation/common/org/eclipse/jdt/internal/core/manipulation/JavaElementLabelComposerCore.java
@@ -904,7 +904,7 @@ protected void appendTypeParameterSignaturesLabel(String[] typeParamSigs, long f
 				if (i > 0) {
 					fBuffer.append(JavaElementLabelsCore.COMMA_STRING);
 				}
-				appendTypeParameteSignatureLabel(Signature.getTypeVariable(typeParamSigs[i]));
+				appendTypeParameterSignatureLabel(Signature.getTypeVariable(typeParamSigs[i]));
 			}
 			appendGT();
 		}
@@ -915,7 +915,7 @@ protected void appendTypeParameterSignaturesLabel(String[] typeParamSigs, long f
 	 *
 	 * @param typeVariableName the type variable name
 	 */
-	protected void appendTypeParameteSignatureLabel(String typeVariableName) {
+	protected void appendTypeParameterSignatureLabel(String typeVariableName) {
 		fBuffer.append(typeVariableName);
 	}
 
diff --git a/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/viewsupport/JavaElementLinks.java b/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/viewsupport/JavaElementLinks.java
index 69499fd5ffd..c00c1a71d49 100644
--- a/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/viewsupport/JavaElementLinks.java
+++ b/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/viewsupport/JavaElementLinks.java
@@ -71,10 +71,10 @@
  */
 public class JavaElementLinks {
 
-	/**
-	 * ID of the checkbox in generated HTML content that toggles formatting inside element labels.
-	 */
-	public static final String CHECKBOX_ID_FORMATTIG= "formattingSwitch"; //$NON-NLS-1$
+	private static final String CHECKBOX_FORMATTING_ID = "formattingSwitch"; //$NON-NLS-1$
+	// browser on windows changes single quotes to double quotes (other platforms don't do that) thus we use / primarily search for this one
+	private static final String CHECKBOX_FORMATTING_ID_ATTR_DQUOTES= "id=\"" + CHECKBOX_FORMATTING_ID + "\""; //$NON-NLS-1$ //$NON-NLS-2$
+	private static final String CHECKBOX_FORMATTING_ID_ATTR_SQUOTES= "id='" + CHECKBOX_FORMATTING_ID + "'"; //$NON-NLS-1$ //$NON-NLS-2$
 
 	private static final String PREFERENCE_KEY_POSTFIX_TYPE_PARAMETERS_REFERENCES_COLORING= "javadocElementsStyling.typeParamsReferencesColoring"; //$NON-NLS-1$
 
@@ -339,7 +339,7 @@ public void appendElementLabel(IJavaElement element, long flags) {
 				appendHoverParent= false;
 
 				// formatting checkbox
-				fBuffer.append("<input type='checkbox' id='" + CHECKBOX_ID_FORMATTIG + "' "); //$NON-NLS-1$ //$NON-NLS-2$
+				fBuffer.append("<input type='checkbox' " + CHECKBOX_FORMATTING_ID_ATTR_DQUOTES + " "); //$NON-NLS-1$ //$NON-NLS-2$
 				if (enableFormatting) {
 					fBuffer.append("checked=true "); //$NON-NLS-1$
 				}
@@ -487,18 +487,22 @@ protected void appendWildcardTypeSignature(String prefix, IJavaElement enclosing
 
 		@Override
 		protected void appendTypeArgumentSignaturesLabel(IJavaElement enclosingElement, String[] typeArgsSig, long flags) {
-			if (inBoundedTypeParam) {
-				inBoundedTypeParam= false;
+			if (noEnhancements || !inBoundedTypeParam) {
 				super.appendTypeArgumentSignaturesLabel(enclosingElement, typeArgsSig, flags);
-				inBoundedTypeParam= true;
 			} else {
+				inBoundedTypeParam= false;
 				super.appendTypeArgumentSignaturesLabel(enclosingElement, typeArgsSig, flags);
+				inBoundedTypeParam= true;
 			}
 		}
 
 		@Override
-		protected void appendTypeParameteSignatureLabel(String typeVariableName) {
-			super.appendTypeParameteSignatureLabel(wrapWithTypeClass(typeVariableName, typeVariableName));
+		protected void appendTypeParameterSignatureLabel(String typeVariableName) {
+			if (noEnhancements) {
+				super.appendTypeParameterSignatureLabel(typeVariableName);
+			} else {
+				super.appendTypeParameterSignatureLabel(wrapWithTypeClass(typeVariableName, typeVariableName));
+			}
 		}
 	}
 
@@ -858,6 +862,10 @@ public static void setColorPreferenceForTypeParamsReference(int referenceIndex,
 		PreferenceConverter.setValue(preferenceStore(), getColorPreferenceKey(PREFERENCE_KEY_PREFIX_TYPE_PARAMETERS_REFERENCE_COLOR, referenceIndex), color);
 	}
 
+	public static boolean isStylingPresent(String browserContent) {
+		return browserContent.contains(CHECKBOX_FORMATTING_ID_ATTR_DQUOTES) || browserContent.contains(CHECKBOX_FORMATTING_ID_ATTR_SQUOTES);
+	}
+
 	public static String modifyCssStyleSheet(String css, StringBuilder buffer) {
 		int startPos= buffer.indexOf(CSS_CLASS_SWITCH_PARENT);
 		if (startPos < 0) {
diff --git a/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/viewsupport/javadoc/SignatureStylingMenuToolbarAction.java b/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/viewsupport/javadoc/SignatureStylingMenuToolbarAction.java
index f12200b85a8..4f32ea012b8 100644
--- a/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/viewsupport/javadoc/SignatureStylingMenuToolbarAction.java
+++ b/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/viewsupport/javadoc/SignatureStylingMenuToolbarAction.java
@@ -59,7 +59,7 @@ public SignatureStylingMenuToolbarAction(Shell parent, BrowserTextAccessor brows
 				new ToggleSignatureTypeParametersColoringAction(),
 				// widget for following action is being removed and re-added repeatedly, see SignatureStylingColorSubMenuItem.menuShown()
 				new SignatureStylingColorSubMenuItem(parent, javadocContentSupplier)};
-		actions= enabledActions;
+		actions= noStylingActions;
 		setMenuCreator(this);
 		this.parent= parent;
 		this.enhancementsReconfiguredTask= enhancementsReconfiguredTask;
@@ -76,7 +76,7 @@ public void browserContentChanged(Supplier<String> contentAccessor) {
 			return;
 		}
 		var content= contentAccessor.get();
-		if (content != null && !content.isBlank() && content.contains(JavaElementLinks.CHECKBOX_ID_FORMATTIG)) {
+		if (content != null && !content.isBlank() && JavaElementLinks.isStylingPresent(content)) {
 			reAddActionItems(enabledActions);
 		} else {
 			reAddActionItems(noStylingActions);
@@ -141,6 +141,8 @@ public void stylingStateChanged(boolean isEnabled) {
 		parent.getDisplay().execute(() -> {
 			enhancementsEnabled= isEnabled;
 			presentEnhancementsState();
+			// even if enhancements switched from off to on, only browserContentChanged() sets enabledActions
+			reAddActionItems(noStylingActions);
 			runEnhancementsReconfiguredTask();
 		});
 	}