IDEA-120343 Gradle: custom title for gradle files in editors

plugins/gradle/src/META-INF/plugin.xml

@@ -63,6 +63,7 @@
                          key="gradle.name" bundle="i18n.GradleBundle"/>
     <library.presentationProvider implementation="org.jetbrains.plugins.gradle.config.GradleLibraryPresentationProvider" order="last"/>
     <java.elementFinder implementation="org.jetbrains.plugins.gradle.config.GradleClassFinder"/>
+    <editorTabTitleProvider implementation="org.jetbrains.plugins.gradle.util.GradleEditorTabTitleProvider"/>
     <projectOpenProcessor implementation="org.jetbrains.plugins.gradle.service.project.wizard.GradleProjectOpenProcessor"/>
     <configurationType implementation="org.jetbrains.plugins.gradle.service.execution.GradleExternalTaskConfigurationType"/>
 

plugins/gradle/src/org/jetbrains/plugins/gradle/util/GradleEditorTabTitleProvider.java

@@ -0,0 +1,43 @@
+/*
+ * 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 org.jetbrains.plugins.gradle.util;
+
+import com.intellij.openapi.fileEditor.impl.EditorTabTitleProvider;
+import com.intellij.openapi.module.Module;
+import com.intellij.openapi.module.ModuleManager;
+import com.intellij.openapi.project.Project;
+import com.intellij.openapi.roots.ModuleRootManager;
+import com.intellij.openapi.vfs.VirtualFile;
+
+/**
+ * @author Vladislav.Soroka
+ * @since 2/5/14
+ */
+public class GradleEditorTabTitleProvider implements EditorTabTitleProvider {
+  public String getEditorTabTitle(Project project, VirtualFile file) {
+    if (GradleConstants.EXTENSION.equals(file.getExtension()) && GradleConstants.DEFAULT_SCRIPT_NAME.equals(file.getName())) {
+      for (Module module : ModuleManager.getInstance(project).getModules()) {
+        if (module.isDisposed()) return null;
+
+        final ModuleRootManager moduleRootManager = ModuleRootManager.getInstance(module);
+        for (VirtualFile virtualFile : moduleRootManager.getContentRoots()) {
+          if (virtualFile == file.getParent()) return module.getName();
+        }
+      }
+    }
+    return null;
+  }
+}