IDEA-229436 NPE at ContentManagerImpl.getComponent() through JSLanguageServiceToolWindowManager.resetToolWindow() on closing Kotlin/JS project

GitOrigin-RevId: 918a48c40063e55a96a9298d2ef6124cf80bb1b1

platform/platform-impl/src/com/intellij/openapi/wm/impl/InternalDecorator.java

@@ -95,15 +95,20 @@ public final class InternalDecorator extends JPanel implements Queryable, DataPr
     return toolWindow.getId();
   }
 
-  public boolean isFocused() {
+  public boolean isFocused(@NotNull IdeFrame ideFrame) {
     IdeFocusManager focusManager = toolWindow.getToolWindowManager().getFocusManager();
-    Component component = focusManager.getFocusedDescendantFor(toolWindow.getComponent());
+    JComponent toolWindowComponent = toolWindow.getComponentIfInitialized();
+    if (toolWindowComponent == null) {
+      return false;
+    }
+
+    Component component = focusManager.getFocusedDescendantFor(toolWindowComponent);
     if (component != null) {
       return true;
     }
 
-    Component owner = focusManager.getLastFocusedFor(WindowManager.getInstance().getIdeFrame(toolWindow.getToolWindowManager().getProject()));
-    return owner != null && SwingUtilities.isDescendingFrom(owner, toolWindow.getComponent());
+    Component owner = focusManager.getLastFocusedFor(ideFrame);
+    return owner != null && SwingUtilities.isDescendingFrom(owner, toolWindowComponent);
   }
 
   void applyWindowInfo(@NotNull WindowInfo info) {

platform/platform-impl/src/com/intellij/openapi/wm/impl/ToolWindowImpl.kt

@@ -19,7 +19,6 @@ import com.intellij.openapi.util.BusyObject
 import com.intellij.openapi.util.Disposer
 import com.intellij.openapi.wm.*
 import com.intellij.openapi.wm.ex.ToolWindowEx
-import com.intellij.openapi.wm.ex.WindowManagerEx
 import com.intellij.openapi.wm.impl.content.ToolWindowContentUi
 import com.intellij.ui.LayeredIcon
 import com.intellij.ui.UIBundle
@@ -169,8 +168,9 @@ class ToolWindowImpl internal constructor(val toolWindowManager: ToolWindowManag
 
   override fun isActive(): Boolean {
     ApplicationManager.getApplication().assertIsDispatchThread()
-    val frame = WindowManagerEx.getInstanceEx().getFrame(toolWindowManager.project)
-    if (frame == null || !frame.isActive || toolWindowManager.isEditorComponentActive) {
+    val frameHelper = toolWindowManager.getFrame() ?: return false
+    val frame = frameHelper.frame
+    if (!frame.isActive || toolWindowManager.isEditorComponentActive) {
       return false
     }
 
@@ -179,7 +179,7 @@ class ToolWindowImpl internal constructor(val toolWindowManager: ToolWindowManag
       return false
     }
     else {
-      return windowInfo.isActive || (decorator?.isFocused ?: false)
+      return windowInfo.isActive || (windowInfo.isVisible && (decorator?.isFocused(frameHelper) ?: false))
     }
   }
 
@@ -267,7 +267,9 @@ class ToolWindowImpl internal constructor(val toolWindowManager: ToolWindowManag
   override fun getDecorator() = decorator!!
 
   val isFocused: Boolean
-    get() = decorator?.isFocused ?: false
+    get() {
+      return decorator?.isFocused(toolWindowManager.getFrame() ?: return false) ?: false
+    }
 
   override fun setAdditionalGearActions(value: ActionGroup?) {
     additionalGearActions = value

platform/platform-impl/src/com/intellij/openapi/wm/impl/ToolWindowManagerImpl.kt

@@ -124,6 +124,8 @@ open class ToolWindowManagerImpl(val project: Project) : ToolWindowManagerEx(),
     }
   }
 
+  internal fun getFrame() = frame
+
   @Service
   private class ToolWindowManagerAppLevelHelper {
     private var awtFocusListener: AWTEventListener? = null