vcs: introduce interface for FilePath-providing grouping nodes

GitOrigin-RevId: 1497337e87d2a41b2c06a0fc6c442ede0926871c

platform/vcs-impl/src/com/intellij/openapi/vcs/changes/ui/ChangesBrowserFilePathNode.kt

@@ -114,8 +114,8 @@ abstract class AbstractChangesBrowserFilePathNode<U>(userObject: U, val status:
     @JvmStatic
     fun safeCastToFilePath(node: ChangesBrowserNode<*>?): FilePath? {
       if (node == null) return null
-      if (node is ChangesBrowserModuleNode) {
-        return node.moduleRoot
+      if (node is NodeWithFilePath) {
+        return node.nodeFilePath
       }
       val o = node.userObject
       if (o is FilePath) return o

platform/vcs-impl/src/com/intellij/openapi/vcs/changes/ui/ChangesBrowserModuleNode.java

@@ -14,7 +14,7 @@ import com.intellij.vcsUtil.VcsUtil;
 import org.jetbrains.annotations.NotNull;
 
 
-public class ChangesBrowserModuleNode extends ChangesBrowserNode<Module> {
+public class ChangesBrowserModuleNode extends ChangesBrowserNode<Module> implements ChangesBrowserNode.NodeWithFilePath {
   @NotNull private final FilePath myModuleRoot;
 
   protected ChangesBrowserModuleNode(Module userObject) {
@@ -24,7 +24,10 @@ public class ChangesBrowserModuleNode extends ChangesBrowserNode<Module> {
   }
 
   @Override
-  public void render(@NotNull final ChangesBrowserNodeRenderer renderer, final boolean selected, final boolean expanded, final boolean hasFocus) {
+  public void render(@NotNull final ChangesBrowserNodeRenderer renderer,
+                     final boolean selected,
+                     final boolean expanded,
+                     final boolean hasFocus) {
     final Module module = (Module)userObject;
 
     renderer.append(module.isDisposed() ? "" : module.getName(), SimpleTextAttributes.REGULAR_ATTRIBUTES);
@@ -34,7 +37,8 @@ public class ChangesBrowserModuleNode extends ChangesBrowserNode<Module> {
 
     if (module.isDisposed()) {
       renderer.setIcon(ModuleType.EMPTY.getIcon());
-    } else {
+    }
+    else {
       renderer.setIcon(ModuleType.get(module).getIcon());
     }
   }
@@ -44,6 +48,11 @@ public class ChangesBrowserModuleNode extends ChangesBrowserNode<Module> {
     return myModuleRoot;
   }
 
+  @Override
+  public @NotNull FilePath getNodeFilePath() {
+    return getModuleRoot();
+  }
+
   @Override
   public String getTextPresentation() {
     return getUserObject().getName();

platform/vcs-impl/src/com/intellij/openapi/vcs/changes/ui/ChangesBrowserNode.java

@@ -487,4 +487,9 @@ public abstract class ChangesBrowserNode<T> extends DefaultMutableTreeNode imple
   public Stream<ChangesBrowserNode<?>> getNodesUnderStream() {
     return traverse().toStream();
   }
+
+  interface NodeWithFilePath {
+    @NotNull
+    FilePath getNodeFilePath();
+  }
 }