Fix #80238

src/vs/workbench/contrib/search/browser/searchView.ts

@@ -711,7 +711,7 @@ export class SearchView extends ViewletPanel {
 		const [selected] = this.tree.getSelection();
 
 		// Expand the initial selected node, if needed
-		if (selected instanceof FileMatch) {
+		if (selected && !(selected instanceof Match)) {
 			if (this.tree.isCollapsed(selected)) {
 				this.tree.expand(selected);
 			}
@@ -721,18 +721,16 @@ export class SearchView extends ViewletPanel {
 
 		let next = navigator.next();
 		if (!next) {
-			// Reached the end - get a new navigator from the root.
-			navigator = this.tree.navigate();
 			next = navigator.first();
 		}
 
-		// Expand and go past FileMatch nodes
+		// Expand until first child is a Match
 		while (!(next instanceof Match)) {
 			if (this.tree.isCollapsed(next)) {
 				this.tree.expand(next);
 			}
 
-			// Select the FileMatch's first child
+			// Select the first child
 			next = navigator.next();
 		}
 
@@ -749,30 +747,17 @@ export class SearchView extends ViewletPanel {
 
 		let prev = navigator.previous();
 
-		// Expand and go past FileMatch nodes
-		if (!(prev instanceof Match)) {
-			prev = navigator.previous();
-			if (!prev) {
-				// Wrap around
-				prev = navigator.last();
-
-				// This is complicated because .last will set the navigator to the last FileMatch,
-				// so expand it and FF to its last child
-				this.tree.expand(prev);
-				let tmp: RenderableMatch | null;
-				while (tmp = navigator.next()) {
-					prev = tmp;
-				}
-			}
+		// Select previous until find a Match or a collapsed item
+		while (!prev || (!(prev instanceof Match) && !this.tree.isCollapsed(prev))) {
+			prev = prev ? navigator.previous() : navigator.last();
+		}
 
-			if (!(prev instanceof Match)) {
-				// There is a second non-Match result, which must be a collapsed FileMatch.
-				// Expand it then select its last child.
-				const nextItem = navigator.next();
-				this.tree.expand(prev);
-				navigator = this.tree.navigate(nextItem); // recreate navigator because modifying the tree can invalidate it
-				prev = navigator.previous();
-			}
+		// Expand until last child is a Match
+		while (!(prev instanceof Match)) {
+			const nextItem = navigator.next();
+			this.tree.expand(prev);
+			navigator = this.tree.navigate(nextItem); // recreate navigator because modifying the tree can invalidate it
+			prev = nextItem ? navigator.previous() : navigator.last(); // select last child
 		}
 
 		// Reveal the newly selected element