android/src/com/android/tools/idea/quickfix/AddGradleJUnitDependencyFix.java

/*
 * Copyright (C) 2015 The Android Open Source Project
 *
 * 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.android.tools.idea.quickfix;

import com.android.tools.idea.gradle.parser.Dependency;
import com.android.tools.idea.gradle.project.GradleProjectImporter;
import com.android.tools.idea.gradle.project.GradleSyncListener;
import com.google.common.base.Function;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;
import com.intellij.codeInsight.daemon.QuickFixBundle;
import com.intellij.codeInsight.daemon.impl.actions.AddImportAction;
import com.intellij.openapi.application.Application;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.module.Module;
import com.intellij.openapi.project.DumbService;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.roots.ModuleRootManager;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.JavaPsiFacade;
import com.intellij.psi.PsiClass;
import com.intellij.psi.PsiFile;
import com.intellij.psi.PsiReference;
import com.intellij.psi.search.GlobalSearchScope;
import com.intellij.psi.util.PsiUtilCore;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.util.List;

/**
 * Quickfix to add JUnit dependency to gradle.build file and sync the project.
 */
public class AddGradleJUnitDependencyFix extends GradleDependencyFix {
  private final Module myCurrentModule;
  private final PsiReference myReference;
  private final String myClassName;
  private final boolean myIsJunit4;

  public AddGradleJUnitDependencyFix(@NotNull Module currentModule, @NotNull PsiReference reference, @NotNull String className,
                                     boolean isJunit4) {
    myCurrentModule = currentModule;
    myReference = reference;
    myClassName = className;
    myIsJunit4 = isJunit4;
  }

  @Override
  @NotNull
  public String getText() {
    return QuickFixBundle.message("orderEntry.fix.add.junit.jar.to.classpath");
  }

  @Override
  @NotNull
  public String getFamilyName() {
    return getText();
  }

  @Override
  public boolean isAvailable(@NotNull Project project, @Nullable Editor editor, @Nullable PsiFile file) {
    return !project.isDisposed() && !myCurrentModule.isDisposed();
  }

  @Override
  public void invoke(@NotNull final Project project, @Nullable final Editor editor, @Nullable PsiFile file) {
    String gradleDependencyEntry = myIsJunit4 ? "junit:junit:4.12" : "junit:junit:3.8.1";

    VirtualFile location = PsiUtilCore.getVirtualFile(myReference.getElement());
    boolean inTests = location != null && ModuleRootManager.getInstance(myCurrentModule).getFileIndex().isInTestSourceContent(location);

    final Dependency dependency = new Dependency(getDependencyScope(myCurrentModule, inTests), Dependency.Type.EXTERNAL,
                                                 gradleDependencyEntry);

    final Application application = ApplicationManager.getApplication();
    application.invokeAndWait(new Runnable() {
      @Override
      public void run() {
        application.runWriteAction(new Runnable() {
          @Override
          public void run() {
            addDependency(myCurrentModule, dependency);
            gradleSyncAndImportClass(myCurrentModule, editor, myReference, new Function<Void, List<PsiClass>>() {
               @Override
               public List<PsiClass> apply(@Nullable Void input) {
                 PsiClass aClass =
                   JavaPsiFacade.getInstance(project).findClass(myClassName, GlobalSearchScope.moduleWithLibrariesScope(myCurrentModule));
                 return aClass != null ? ImmutableList.of(aClass) : null;
               }
            });
          }
        });
      }
    }, application.getDefaultModalityState());
  }
}