From e983db854976445b47b58b5f1c004724794fd6d9 Mon Sep 17 00:00:00 2001
From: Maximilian Wittmer <Maximilian.Wittmer@vector.com>
Date: Fri, 8 Mar 2024 14:14:56 +0100
Subject: [PATCH] Fix: "Search-scopes don't update #1740"

Updates the search-scopes when a new selection is created.
Also implements a regression-test to the FindReplaceDialogTest-class.

Fixes https://github.com/eclipse-platform/eclipse.platform.ui/issues/1047
---
 .../findandreplace/FindReplaceLogic.java      | 43 +++++++++----------
 .../findandreplace/FindReplaceLogicTest.java  | 20 +++++++++
 2 files changed, 41 insertions(+), 22 deletions(-)

diff --git a/bundles/org.eclipse.ui.workbench.texteditor/src/org/eclipse/ui/internal/findandreplace/FindReplaceLogic.java b/bundles/org.eclipse.ui.workbench.texteditor/src/org/eclipse/ui/internal/findandreplace/FindReplaceLogic.java
index fadff8e1f21..777251b021b 100644
--- a/bundles/org.eclipse.ui.workbench.texteditor/src/org/eclipse/ui/internal/findandreplace/FindReplaceLogic.java
+++ b/bundles/org.eclipse.ui.workbench.texteditor/src/org/eclipse/ui/internal/findandreplace/FindReplaceLogic.java
@@ -50,7 +50,6 @@
 public class FindReplaceLogic implements IFindReplaceLogic {
 	private IFindReplaceStatus status;
 	private IFindReplaceTarget target;
-	private IRegion oldScope;
 	private Point incrementalBaseLocation;
 
 	private boolean isTargetSupportingRegEx;
@@ -65,7 +64,7 @@ public void activate(SearchOptions searchOption) {
 
 		switch (searchOption) {
 		case GLOBAL:
-			useSelectedLines(false);
+			unsetSearchScope();
 			break;
 		case FORWARD:
 		case INCREMENTAL:
@@ -73,7 +72,7 @@ public void activate(SearchOptions searchOption) {
 				initIncrementalBaseLocation();
 			}
 			break;
-			// $CASES-OMITTED$
+		// $CASES-OMITTED$
 		default:
 			break;
 		}
@@ -86,7 +85,7 @@ public void deactivate(SearchOptions searchOption) {
 		}
 
 		if (searchOption == SearchOptions.GLOBAL) {
-			useSelectedLines(true);
+			initializeSearchScope();
 		}
 
 		if (searchOption == SearchOptions.FORWARD && shouldInitIncrementalBaseLocation()) {
@@ -152,10 +151,8 @@ public boolean shouldInitIncrementalBaseLocation() {
 	/**
 	 * Tells the dialog to perform searches only in the scope given by the actually
 	 * selected lines.
-	 *
-	 * @param selectedLines <code>true</code> if selected lines should be used
 	 */
-	private void useSelectedLines(boolean selectedLines) {
+	private void initializeSearchScope() {
 		if (shouldInitIncrementalBaseLocation()) {
 			initIncrementalBaseLocation();
 		}
@@ -166,25 +163,27 @@ private void useSelectedLines(boolean selectedLines) {
 
 		IFindReplaceTargetExtension extensionTarget = (IFindReplaceTargetExtension) target;
 
-		if (selectedLines) {
+		IRegion scope;
+		Point lineSelection = extensionTarget.getLineSelection();
+		scope = new Region(lineSelection.x, lineSelection.y);
 
-			IRegion scope;
-			if (oldScope == null) {
-				Point lineSelection = extensionTarget.getLineSelection();
-				scope = new Region(lineSelection.x, lineSelection.y);
-			} else {
-				scope = oldScope;
-				oldScope = null;
-			}
+		int offset = isActive(SearchOptions.FORWARD) ? scope.getOffset() : scope.getOffset() + scope.getLength();
 
-			int offset = isActive(SearchOptions.FORWARD) ? scope.getOffset() : scope.getOffset() + scope.getLength();
+		extensionTarget.setSelection(offset, 0);
+		extensionTarget.setScope(scope);
+	}
 
-			extensionTarget.setSelection(offset, 0);
-			extensionTarget.setScope(scope);
-		} else {
-			oldScope = extensionTarget.getScope();
-			extensionTarget.setScope(null);
+	/**
+	 * Unsets the search scope for a "Scoped"-Search.
+	 */
+	private void unsetSearchScope() {
+		if (target == null || !(target instanceof IFindReplaceTargetExtension)) {
+			return;
 		}
+
+		IFindReplaceTargetExtension extensionTarget = (IFindReplaceTargetExtension) target;
+
+		extensionTarget.setScope(null);
 	}
 
 	/**
diff --git a/tests/org.eclipse.ui.workbench.texteditor.tests/src/org/eclipse/ui/internal/findandreplace/FindReplaceLogicTest.java b/tests/org.eclipse.ui.workbench.texteditor.tests/src/org/eclipse/ui/internal/findandreplace/FindReplaceLogicTest.java
index 3c8063d4d31..91a72c2d465 100644
--- a/tests/org.eclipse.ui.workbench.texteditor.tests/src/org/eclipse/ui/internal/findandreplace/FindReplaceLogicTest.java
+++ b/tests/org.eclipse.ui.workbench.texteditor.tests/src/org/eclipse/ui/internal/findandreplace/FindReplaceLogicTest.java
@@ -33,6 +33,7 @@
 
 import org.eclipse.jface.text.Document;
 import org.eclipse.jface.text.IFindReplaceTarget;
+import org.eclipse.jface.text.TextSelection;
 import org.eclipse.jface.text.TextViewer;
 
 import org.eclipse.ui.internal.findandreplace.status.FindAllStatus;
@@ -432,6 +433,25 @@ public void testSelectWholeWords() {
 		expectStatusIsCode(findReplaceLogic, FindStatus.StatusCode.NO_MATCH);
 	}
 
+	@Test
+	public void testSelectInSearchScope() {
+		TextViewer textViewer= setupTextViewer("line1\nline2\nline3");
+		IFindReplaceLogic findReplaceLogic= setupFindReplaceLogicObject(textViewer);
+		textViewer.setSelection(new TextSelection(6, 11));
+		findReplaceLogic.deactivate(SearchOptions.GLOBAL);
+		findReplaceLogic.performReplaceAll("l", "", Display.getCurrent());
+		expectStatusIsReplaceAllWithCount(findReplaceLogic, 2);
+
+		findReplaceLogic.activate(SearchOptions.GLOBAL);
+		textViewer.setSelection(new TextSelection(0, 5));
+		findReplaceLogic.deactivate(SearchOptions.GLOBAL);
+
+		findReplaceLogic.performReplaceAll("n", "", Display.getCurrent());
+		expectStatusIsReplaceAllWithCount(findReplaceLogic, 1);
+
+		assertThat(textViewer.getTextWidget().getText(), is("lie1\nine2\nine3"));
+	}
+
 	private void expectStatusEmpty(IFindReplaceLogic findReplaceLogic) {
 		assertThat(findReplaceLogic.getStatus(), instanceOf(NoStatus.class));
 	}