IJPL-164294 vcs marker: Fix scrolling and positioning of popup

IJ-MR-147690

GitOrigin-RevId: 20a8d077f497d0bcb58a46d9ba30f525b1af897a

platform/diff-impl/src/com/intellij/openapi/vcs/ex/LineStatusMarkerPopupPanel.java

@@ -141,9 +141,14 @@ public class LineStatusMarkerPopupPanel extends JPanel {
       // Space for horizontal scrollbar
       size.height += JBUI.scale(20);
     }
-    if (size.height > maxSize.height) {
-      size.height = maxSize.height;
+
+    Rectangle panelRect = new Rectangle(new Point(0, 0), size);
+    Rectangle rectangle = SwingUtilities.convertRectangle(this, panelRect, window);
+
+    if (rectangle.y + size.height > maxSize.height) {
+      size.height = maxSize.height - rectangle.y;
     }
+
     return size;
   }
 

platform/diff-impl/src/com/intellij/openapi/vcs/ex/LineStatusMarkerPopupService.kt

@@ -76,9 +76,7 @@ internal class LineStatusMarkerPopupService {
   }
 
   private fun showHint(hint: LightweightHint, editor: Editor, point: Point) {
-    val parent = editor.getComponent().rootPane
-    val hintHint = HintHint(editor, point)
-    hint.show(parent, point.x, point.y, editor.getComponent(), hintHint)
+    HintManagerImpl.doShowInGivenLocation(hint, editor, point, HintHint(editor, point), true)
   }
 
   companion object {

platform/platform-impl/src/com/intellij/codeInsight/hint/HintManagerImpl.java

@@ -213,7 +213,8 @@ public class HintManagerImpl extends HintManager {
     ClientHintManager.getCurrentInstance().showHint(component, p, flags, timeout, onHintHidden);
   }
 
-  static void doShowInGivenLocation(final LightweightHint hint, final Editor editor, Point p, HintHint hintInfo, boolean updateSize) {
+  @ApiStatus.Internal
+  public static void doShowInGivenLocation(final LightweightHint hint, final Editor editor, Point p, HintHint hintInfo, boolean updateSize) {
     if (ApplicationManager.getApplication().isUnitTestMode()) return;
 
     JComponent externalComponent = getExternalComponent(editor);