breakpoints-ui. deny multiple breakpoints popups.

java/debugger/impl/src/com/intellij/debugger/actions/JavaEditBreakpointActionHandler.java

@@ -27,6 +27,7 @@ import com.intellij.openapi.editor.ex.EditorGutterComponentEx;
 import com.intellij.openapi.editor.markup.GutterIconRenderer;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.ui.popup.Balloon;
+import com.intellij.openapi.ui.popup.JBPopup;
 import com.intellij.openapi.ui.popup.JBPopupListener;
 import com.intellij.openapi.ui.popup.LightweightWindowEvent;
 import com.intellij.openapi.util.Key;
@@ -93,8 +94,11 @@ public class JavaEditBreakpointActionHandler extends EditBreakpointActionHandler
         UIUtil.invokeLaterIfNeeded(new Runnable() {
           @Override
           public void run() {
-            BreakpointsMasterDetailPopupFactory.
-                          getInstance(project).createPopup(javaBreakpoint).showCenteredInCurrentWindow(project);
+            final JBPopup popup = BreakpointsMasterDetailPopupFactory.
+              getInstance(project).createPopup(javaBreakpoint);
+            if (popup != null) {
+              popup.showCenteredInCurrentWindow(project);
+            }
           }
         });
       }

platform/xdebugger-impl/src/com/intellij/xdebugger/impl/actions/ViewBreakpointsAction.java

@@ -26,6 +26,7 @@ import com.intellij.openapi.editor.Editor;
 import com.intellij.openapi.project.DumbAware;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.ui.DialogWrapper;
+import com.intellij.openapi.ui.popup.JBPopup;
 import com.intellij.openapi.util.registry.Registry;
 import com.intellij.xdebugger.impl.breakpoints.XBreakpointUtil;
 import com.intellij.xdebugger.impl.breakpoints.ui.BreakpointsConfigurationDialogFactory;
@@ -56,8 +57,11 @@ public class ViewBreakpointsAction extends AnAction implements AnAction.Transpar
     }
 
     if (Registry.is("debugger.breakpoint.use.breakpoints.popup")) {
-      BreakpointsMasterDetailPopupFactory.
-        getInstance(project).createPopup(myInitialBreakpoint).showCenteredInCurrentWindow(project);
+      final JBPopup popup = BreakpointsMasterDetailPopupFactory.
+        getInstance(project).createPopup(myInitialBreakpoint);
+      if (popup != null) {
+        popup.showCenteredInCurrentWindow(project);
+      }
     }
     else {
       DialogWrapper dialog = BreakpointsConfigurationDialogFactory.getInstance(project).createDialog(myInitialBreakpoint);

platform/xdebugger-impl/src/com/intellij/xdebugger/impl/breakpoints/ui/BreakpointsMasterDetailPopupFactory.java

@@ -35,6 +35,8 @@ public class BreakpointsMasterDetailPopupFactory {
   private Project myProject;
   private Balloon myBalloonToHide;
   private Object myBreakpoint;
+  private JBPopup myPopupShowing;
+
 
   public BreakpointsMasterDetailPopupFactory(Project project) {
     myProject = project;
@@ -63,7 +65,11 @@ public class BreakpointsMasterDetailPopupFactory {
     return ServiceManager.getService(project, BreakpointsMasterDetailPopupFactory.class);
   }
 
+  @Nullable
   public JBPopup createPopup(@Nullable Object initialBreakpoint) {
+    if (myPopupShowing != null) {
+      return null;
+    }
     BreakpointMasterDetailPopupBuilder builder = new BreakpointMasterDetailPopupBuilder(myProject);
     builder.setInitialBreakpoint(initialBreakpoint != null ? initialBreakpoint : myBreakpoint);
     builder.setBreakpointsPanelProviders(collectPanelProviders());
@@ -84,6 +90,7 @@ public class BreakpointsMasterDetailPopupFactory {
           myBalloonToHide.hide();
           myBalloonToHide = null;
         }
+        myPopupShowing = popup;
       }
 
       @Override
@@ -91,6 +98,7 @@ public class BreakpointsMasterDetailPopupFactory {
         for (BreakpointPanelProvider provider : collectPanelProviders()) {
           provider.onDialogClosed(myProject);
         }
+        myPopupShowing = null;
       }
     });
     return popup;

platform/xdebugger-impl/src/com/intellij/xdebugger/impl/ui/DebuggerUIUtil.java

@@ -199,8 +199,11 @@ public class DebuggerUIUtil {
       public void run() {
         propertiesPanel.saveProperties();
         //showXBreakpointEditorBalloon(project, point, component, true, breakpoint);
-        BreakpointsMasterDetailPopupFactory.
-                                  getInstance(project).createPopup(breakpoint).showCenteredInCurrentWindow(project);
+        final JBPopup popup = BreakpointsMasterDetailPopupFactory.
+          getInstance(project).createPopup(breakpoint);
+        if (popup != null) {
+          popup.showCenteredInCurrentWindow(project);
+        }
       }
     };