/*
* 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.uiDesigner.actions;
import com.intellij.codeInsight.generation.GenerateMembersUtil;
import com.intellij.codeInsight.generation.PsiGenerationInfo;
import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.CommonDataKeys;
import com.intellij.openapi.actionSystem.Presentation;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.command.CommandProcessor;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.ui.Messages;
import com.intellij.psi.*;
import com.intellij.psi.codeStyle.JavaCodeStyleManager;
import com.intellij.psi.codeStyle.SuggestedNameInfo;
import com.intellij.psi.codeStyle.VariableKind;
import com.intellij.psi.util.PsiMethodUtil;
import com.intellij.psi.util.PsiTreeUtil;
import com.intellij.psi.util.PsiUtil;
import com.intellij.uiDesigner.UIDesignerBundle;
import com.intellij.uiDesigner.binding.FormClassIndex;
import com.intellij.uiDesigner.compiler.AlienFormFileException;
import com.intellij.uiDesigner.compiler.Utils;
import com.intellij.uiDesigner.lw.LwRootContainer;
import com.intellij.util.IncorrectOperationException;
import org.jetbrains.annotations.NonNls;
import javax.swing.*;
import java.util.Collections;
import java.util.List;
/**
* @author yole
*/
public class GenerateMainAction extends AnAction {
private static final Logger LOG = Logger.getInstance("#com.intellij.uiDesigner.actions.GenerateMainAction");
public void actionPerformed(AnActionEvent e) {
final Project project = e.getData(CommonDataKeys.PROJECT);
assert project != null;
final Editor editor = e.getData(CommonDataKeys.EDITOR);
assert editor != null;
final int offset = editor.getCaretModel().getOffset();
final PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(editor.getDocument());
PsiClass psiClass = PsiTreeUtil.getParentOfType(file.findElementAt(offset), PsiClass.class);
assert psiClass != null;
if (!PsiUtil.hasDefaultConstructor(psiClass)) {
Messages.showMessageDialog(project, UIDesignerBundle.message("generate.main.no.default.constructor"), UIDesignerBundle.message("generate.main.title"), Messages.getErrorIcon());
return;
}
final List<PsiFile> boundForms = FormClassIndex.findFormsBoundToClass(project, psiClass.getQualifiedName());
final LwRootContainer rootContainer;
try {
rootContainer = Utils.getRootContainer(boundForms.get(0).getText(), null);
}
catch (AlienFormFileException ex) {
Messages.showMessageDialog(project, "The form bound to the class is not a valid IntelliJ IDEA form",
UIDesignerBundle.message("generate.main.title"), Messages.getErrorIcon());
return;
}
catch (Exception ex) {
LOG.error(ex);
return;
}
if (rootContainer.getComponentCount() == 0) {
Messages.showMessageDialog(project, UIDesignerBundle.message("generate.main.empty.form"),
UIDesignerBundle.message("generate.main.title"), Messages.getErrorIcon());
return;
}
String rootBinding = rootContainer.getComponent(0).getBinding();
if (rootBinding == null || psiClass.findFieldByName(rootBinding, true) == null) {
Messages.showMessageDialog(project, UIDesignerBundle.message("generate.main.no.root.binding"),
UIDesignerBundle.message("generate.main.title"), Messages.getErrorIcon());
return;
}
@NonNls final StringBuilder mainBuilder = new StringBuilder("public static void main(String[] args) { ");
final JavaCodeStyleManager csm = JavaCodeStyleManager.getInstance(project);
SuggestedNameInfo nameInfo = csm.suggestVariableName(VariableKind.LOCAL_VARIABLE, "frame", null, null);
String varName = nameInfo.names [0];
mainBuilder.append(JFrame.class.getName()).append(" ").append(varName).append("= new ").append(JFrame.class.getName());
mainBuilder.append("(\"").append(psiClass.getName()).append("\");");
mainBuilder.append(varName).append(".setContentPane(new ").append(psiClass.getQualifiedName()).append("().").append(rootBinding).append(");");
mainBuilder.append(varName).append(".setDefaultCloseOperation(").append(JFrame.class.getName()).append(".EXIT_ON_CLOSE);");
mainBuilder.append(varName).append(".pack();");
mainBuilder.append(varName).append(".setVisible(true);");
mainBuilder.append("}\n");
CommandProcessor.getInstance().executeCommand(project, () -> ApplicationManager.getApplication().runWriteAction(() -> {
try {
PsiMethod method =
JavaPsiFacade.getInstance(file.getProject()).getElementFactory().createMethodFromText(mainBuilder.toString(), file);
List<PsiGenerationInfo<PsiMethod>> infos = Collections.singletonList(new PsiGenerationInfo<>(method));
List<PsiGenerationInfo<PsiMethod>> resultMembers = GenerateMembersUtil.insertMembersAtOffset(file, offset, infos);
resultMembers.get(0).positionCaret(editor, false);
}
catch (IncorrectOperationException e1) {
LOG.error(e1);
}
}), null, null);
}
@Override
public void update(AnActionEvent e) {
boolean enabled = isActionEnabled(e);
Presentation presentation = e.getPresentation();
presentation.setEnabled(enabled);
presentation.setVisible(enabled);
}
private static boolean isActionEnabled(final AnActionEvent e) {
Project project = e.getData(CommonDataKeys.PROJECT);
if (project == null) return false;
Editor editor = e.getData(CommonDataKeys.EDITOR);
if (editor == null) return false;
int offset = editor.getCaretModel().getOffset();
PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(editor.getDocument());
if (file == null) return false;
PsiElement element = file.findElementAt(offset);
if (element == null) return false;
PsiClass psiClass = PsiTreeUtil.getParentOfType(element, PsiClass.class);
if (psiClass == null) return false;
if (PsiMethodUtil.findMainMethod(psiClass) != null) return false;
if (FormClassIndex.findFormsBoundToClass(project, psiClass).isEmpty()) return false;
return true;
}
}