1 files changed, 68 insertions, 0 deletions
diff --git a/platform/platform-impl/src/com/intellij/openapi/actionSystem/impl/ChameleonAction.java b/platform/platform-impl/src/com/intellij/openapi/actionSystem/impl/ChameleonAction.java
new file mode 100644
index 000000000000..4b46dc191c0c
--- /dev/null
+++ b/platform/platform-impl/src/com/intellij/openapi/actionSystem/impl/ChameleonAction.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2000-2014 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.intellij.openapi.actionSystem.impl;
+
+import com.intellij.openapi.actionSystem.ActionStub;
+import com.intellij.openapi.actionSystem.AnAction;
+import com.intellij.openapi.actionSystem.AnActionEvent;
+import com.intellij.openapi.actionSystem.CommonDataKeys;
+import com.intellij.openapi.project.Project;
+import com.intellij.openapi.project.ProjectType;
+import com.intellij.openapi.project.ProjectTypeService;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * @author Dmitry Avdeev
+ */
+public class ChameleonAction extends AnAction {
+
+  private final Map<ProjectType, AnAction> myActions = new HashMap<ProjectType, AnAction>();
+
+  public ChameleonAction(@NotNull AnAction first, ProjectType projectType) {
+    addAction(first, projectType);
+  }
+
+  public AnAction addAction(AnAction action, ProjectType projectType) {
+    if (action instanceof ActionStub) {
+      String type = ((ActionStub)action).getProjectType();
+      action = ActionManagerImpl.convertStub((ActionStub)action);
+      projectType = type == null ? null : new ProjectType(type);
+    }
+    return myActions.put(projectType, action);
+  }
+
+  @Override
+  public void actionPerformed(AnActionEvent e) {
+    getAction(e).actionPerformed(e);
+  }
+
+  @Override
+  public void update(AnActionEvent e) {
+    super.update(e);
+  }
+
+  private AnAction getAction(AnActionEvent e) {
+    Project project = CommonDataKeys.PROJECT.getData(e.getDataContext());
+    ProjectType projectType = ProjectTypeService.getProjectType(project);
+    AnAction action = myActions.get(projectType);
+    if (action == null) action = myActions.get(null);
+    if (action == null) action = myActions.values().iterator().next();
+    return action;
+  }
+}