platform/lang-impl/src/com/intellij/ide/fileTemplates/impl/FileTemplateConfigurable.java - platform/tools/idea - Git at Google

 /*
  * 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.ide.fileTemplates.impl;

 import com.intellij.codeInsight.template.impl.TemplateColors;
 import com.intellij.ide.DataManager;
 import com.intellij.ide.IdeBundle;
 import com.intellij.ide.fileTemplates.FileTemplate;
 import com.intellij.ide.fileTemplates.FileTemplateManager;
 import com.intellij.lexer.FlexAdapter;
 import com.intellij.lexer.Lexer;
 import com.intellij.lexer.MergingLexerAdapter;
 import com.intellij.openapi.actionSystem.CommonDataKeys;
 import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.editor.Document;
 import com.intellij.openapi.editor.Editor;
 import com.intellij.openapi.editor.EditorFactory;
 import com.intellij.openapi.editor.EditorSettings;
 import com.intellij.openapi.editor.colors.EditorColors;
 import com.intellij.openapi.editor.colors.EditorColorsManager;
 import com.intellij.openapi.editor.colors.EditorColorsScheme;
 import com.intellij.openapi.editor.colors.TextAttributesKey;
 import com.intellij.openapi.editor.event.DocumentAdapter;
 import com.intellij.openapi.editor.event.DocumentEvent;
 import com.intellij.openapi.editor.ex.EditorEx;
 import com.intellij.openapi.editor.ex.util.LayerDescriptor;
 import com.intellij.openapi.editor.ex.util.LayeredLexerEditorHighlighter;
 import com.intellij.openapi.editor.highlighter.EditorHighlighter;
 import com.intellij.openapi.editor.highlighter.EditorHighlighterFactory;
 import com.intellij.openapi.fileTypes.*;
 import com.intellij.openapi.options.Configurable;
 import com.intellij.openapi.options.ConfigurationException;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.project.ProjectManager;
 import com.intellij.openapi.ui.Splitter;
 import com.intellij.openapi.util.Comparing;
 import com.intellij.openapi.util.io.FileUtil;
 import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.psi.PsiDocumentManager;
 import com.intellij.psi.PsiFile;
 import com.intellij.psi.PsiFileFactory;
 import com.intellij.psi.tree.IElementType;
 import com.intellij.psi.tree.TokenSet;
 import com.intellij.testFramework.LightVirtualFile;
 import com.intellij.ui.ScrollPaneFactory;
 import com.intellij.ui.SeparatorFactory;
 import com.intellij.util.containers.ContainerUtil;
 import com.intellij.util.ui.UIUtil;
 import org.jetbrains.annotations.NonNls;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;

 import javax.swing.*;
 import javax.swing.event.ChangeEvent;
 import javax.swing.event.ChangeListener;
 import java.awt.*;
 import java.awt.event.FocusAdapter;
 import java.awt.event.FocusEvent;
 import java.io.File;
 import java.io.IOException;
 import java.net.URL;
 import java.util.List;

 /*
  * @author: MYakovlev
  * Date: Jul 26, 2002
  * Time: 12:46:00 PM
  */

 public class FileTemplateConfigurable implements Configurable, Configurable.NoScroll {
   private static final Logger LOG = Logger.getInstance("#com.intellij.ide.fileTemplates.impl.FileTemplateConfigurable");
   @NonNls private static final String EMPTY_HTML = "<html></html>";
   @NonNls private static final String CONTENT_TYPE_PLAIN = "text/plain";

   private JPanel myMainPanel;
   private FileTemplate myTemplate;
   private PsiFile myFile;
   private Editor myTemplateEditor;
   private JTextField myNameField;
   private JTextField myExtensionField;
   private JCheckBox myAdjustBox;
   private JPanel myTopPanel;
   private JEditorPane myDescriptionComponent;
   private boolean myModified = false;
   private URL myDefaultDescriptionUrl;
   private final Project myProject;

   private final List<ChangeListener> myChangeListeners = ContainerUtil.createLockFreeCopyOnWriteList();
   private Splitter mySplitter;
   private final FileType myVelocityFileType = FileTypeManager.getInstance().getFileTypeByExtension("ft");
   private JPanel myDescriptionPanel;

   public FileTemplateConfigurable() {
     Project project = CommonDataKeys.PROJECT.getData(DataManager.getInstance().getDataContext());
     myProject = project != null ? project : ProjectManager.getInstance().getDefaultProject();
   }

   public FileTemplate getTemplate() {
     return myTemplate;
   }

   public void setTemplate(FileTemplate template, URL defaultDescription) {
     myDefaultDescriptionUrl = defaultDescription;
     myTemplate = template;
     if (myMainPanel != null) {
       reset();
       myNameField.selectAll();
       myExtensionField.selectAll();
     }
   }

   public void setShowInternalMessage(String message) {
     if (message == null) {
       myTopPanel.removeAll();
       myTopPanel.add(new JLabel(IdeBundle.message("label.name")),
                      new GridBagConstraints(0, 0, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE,
                                             new Insets(0, 0, 0, 2), 0, 0));
       myTopPanel.add(myNameField,
                      new GridBagConstraints(1, 0, 1, 1, 1.0, 0.0, GridBagConstraints.CENTER,
                                             GridBagConstraints.HORIZONTAL, new Insets(0, 2, 0, 2), 0, 0));
       myTopPanel.add(new JLabel(IdeBundle.message("label.extension")),
                      new GridBagConstraints(2, 0, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE,
                                             new Insets(0, 2, 0, 2), 0, 0));
       myTopPanel.add(myExtensionField,
                      new GridBagConstraints(3, 0, 1, 1, .3, 0.0, GridBagConstraints.CENTER,
                                             GridBagConstraints.HORIZONTAL, new Insets(0, 2, 0, 0), 0, 0));
       myExtensionField.setColumns(7);
     }
     else {
       myTopPanel.removeAll();
       myTopPanel.add(new JLabel(message),
                      new GridBagConstraints(0, 0, 4, 1, 1.0, 0.0, GridBagConstraints.WEST,
                                             GridBagConstraints.HORIZONTAL, new Insets(0, 0, 0, 0), 0, 0));
       myTopPanel.add(Box.createVerticalStrut(myNameField.getPreferredSize().height),
                      new GridBagConstraints(4, 0, 1, 1, 0.0, 0.0, GridBagConstraints.WEST,
                                             GridBagConstraints.HORIZONTAL, new Insets(0, 0, 0, 0), 0, 0));
     }
     myMainPanel.revalidate();
     myTopPanel.repaint();
   }

   public void setShowAdjustCheckBox(boolean show) {
     myAdjustBox.setEnabled(show);
   }

   @Override
   public String getDisplayName() {
     return IdeBundle.message("title.file.templates");
   }

   @Override
   public String getHelpTopic() {
     return null;
   }

   @Override
   public JComponent createComponent() {
     myMainPanel = new JPanel(new GridBagLayout());
     myNameField = new JTextField();
     myExtensionField = new JTextField();
     mySplitter = new Splitter(true, 0.4f);

     myTemplateEditor = createEditor();

     myDescriptionComponent = new JEditorPane(UIUtil.HTML_MIME, EMPTY_HTML);
     myDescriptionComponent.setEditable(false);

     myAdjustBox = new JCheckBox(IdeBundle.message("checkbox.reformat.according.to.style"));
     myTopPanel = new JPanel(new GridBagLayout());

     myDescriptionPanel = new JPanel(new GridBagLayout());
     myDescriptionPanel.add(SeparatorFactory.createSeparator(IdeBundle.message("label.description"), null),
                            new GridBagConstraints(0, 0, 1, 1, 0.0, 0.0, GridBagConstraints.WEST, GridBagConstraints.HORIZONTAL,
                                                   new Insets(0, 0, 2, 0), 0, 0));
     myDescriptionPanel.add(ScrollPaneFactory.createScrollPane(myDescriptionComponent),
                            new GridBagConstraints(0, 1, 1, 1, 1.0, 1.0, GridBagConstraints.CENTER, GridBagConstraints.BOTH,
                                                   new Insets(2, 0, 0, 0), 0, 0));

     myMainPanel.add(myTopPanel,
                     new GridBagConstraints(0, 0, 4, 1, 1.0, 0.0, GridBagConstraints.CENTER,
                                            GridBagConstraints.HORIZONTAL, new Insets(0, 0, 2, 0), 0, 0));
     myMainPanel.add(myAdjustBox,
                     new GridBagConstraints(0, 1, 4, 1, 0.0, 0.0, GridBagConstraints.WEST,
                                            GridBagConstraints.HORIZONTAL, new Insets(2, 0, 2, 0), 0, 0));
     myMainPanel.add(mySplitter,
                     new GridBagConstraints(0, 2, 4, 1, 1.0, 1.0, GridBagConstraints.CENTER, GridBagConstraints.BOTH,
                                            new Insets(2, 0, 0, 0), 0, 0));

     mySplitter.setSecondComponent(myDescriptionPanel);
     setShowInternalMessage(null);

     myNameField.addFocusListener(new FocusAdapter() {
       @Override
       public void focusLost(@NotNull FocusEvent e) {
         onNameChanged();
       }
     });
     myExtensionField.addFocusListener(new FocusAdapter() {
       @Override
       public void focusLost(@NotNull FocusEvent e) {
         onNameChanged();
       }
     });
     myMainPanel.setPreferredSize(new Dimension(400, 300));
     return myMainPanel;
   }

   private Editor createEditor() {
     EditorFactory editorFactory = EditorFactory.getInstance();
     Document doc = myFile == null
                    ? editorFactory.createDocument(myTemplate == null ? "" : myTemplate.getText())
                    : PsiDocumentManager.getInstance(myFile.getProject()).getDocument(myFile);
     assert doc != null;
     Editor editor = editorFactory.createEditor(doc, myProject);

     EditorSettings editorSettings = editor.getSettings();
     editorSettings.setVirtualSpace(false);
     editorSettings.setLineMarkerAreaShown(false);
     editorSettings.setIndentGuidesShown(false);
     editorSettings.setLineNumbersShown(false);
     editorSettings.setFoldingOutlineShown(false);
     editorSettings.setAdditionalColumnsCount(3);
     editorSettings.setAdditionalLinesCount(3);

     EditorColorsScheme scheme = editor.getColorsScheme();
     scheme.setColor(EditorColors.CARET_ROW_COLOR, null);

     editor.getDocument().addDocumentListener(new DocumentAdapter() {
       @Override
       public void documentChanged(DocumentEvent e) {
         onTextChanged();
       }
     });

     ((EditorEx)editor).setHighlighter(createHighlighter());
     mySplitter.setFirstComponent(editor.getComponent());
     return editor;
   }

   private void onTextChanged() {
     myModified = true;
   }

   public String getNameValue() {
     return myNameField.getText();
   }

   public String getExtensionValue() {
     return myExtensionField.getText();
   }

   private void onNameChanged() {
     ChangeEvent event = new ChangeEvent(this);
     for (ChangeListener changeListener : myChangeListeners) {
       changeListener.stateChanged(event);
     }
   }

   public void addChangeListener(ChangeListener listener) {
     if (!myChangeListeners.contains(listener)) {
       myChangeListeners.add(listener);
     }
   }

   public void removeChangeListener(ChangeListener listener) {
     myChangeListeners.remove(listener);
   }

   @Override
   public boolean isModified() {
     if (myModified) {
       return true;
     }
     String name = (myTemplate == null) ? "" : myTemplate.getName();
     String extension = (myTemplate == null) ? "" : myTemplate.getExtension();
     if (!Comparing.equal(name, myNameField.getText())) {
       return true;
     }
     if (!Comparing.equal(extension, myExtensionField.getText())) {
       return true;
     }
     if (myTemplate != null) {
       if (myTemplate.isReformatCode() != myAdjustBox.isSelected()) {
         return true;
       }
     }
     return false;
   }

   @Override
   public void apply() throws ConfigurationException {
     if (myTemplate != null) {
       myTemplate.setText(myTemplateEditor.getDocument().getText());
       String name = myNameField.getText();
       String extension = myExtensionField.getText();
       if (name.length() == 0 || !isValidFilename(name + "." + extension)) {
         throw new ConfigurationException(IdeBundle.message("error.invalid.template.file.name.or.extension"));
       }
       myTemplate.setName(name);
       myTemplate.setExtension(extension);
       myTemplate.setReformatCode(myAdjustBox.isSelected());
     }
     myModified = false;
   }

   // TODO: needs to be generalized someday for other profiles
   private static boolean isValidFilename(final String filename) {
     if ( filename.contains("/") || filename.contains("\\") || filename.contains(":") ) {
       return false;
     }
     final File tempFile = new File (FileUtil.getTempDirectory() + File.separator + filename);
     return FileUtil.ensureCanCreateFile(tempFile);
   }

   @Override
   public void reset() {
     final String text = (myTemplate == null) ? "" : myTemplate.getText();
     String name = (myTemplate == null) ? "" : myTemplate.getName();
     String extension = (myTemplate == null) ? "" : myTemplate.getExtension();
     String description = (myTemplate == null) ? "" : myTemplate.getDescription();

     if ((description.length() == 0) && (myDefaultDescriptionUrl != null)) {
       try {
         description = UrlUtil.loadText(myDefaultDescriptionUrl);
       }
       catch (IOException e) {
         LOG.error(e);
       }
     }

     EditorFactory.getInstance().releaseEditor(myTemplateEditor);
     myFile = createFile(text, name);
     myTemplateEditor = createEditor();

     boolean adjust = (myTemplate != null) && myTemplate.isReformatCode();
     myNameField.setText(name);
     myExtensionField.setText(extension);
     myAdjustBox.setSelected(adjust);
     String desc = description.length() > 0 ? description : EMPTY_HTML;

     // [myakovlev] do not delete these stupid lines! Or you get Exception!
     myDescriptionComponent.setContentType(CONTENT_TYPE_PLAIN);
     myDescriptionComponent.setEditable(true);
     myDescriptionComponent.setText(desc);
     myDescriptionComponent.setContentType(UIUtil.HTML_MIME);
     myDescriptionComponent.setText(desc);
     myDescriptionComponent.setCaretPosition(0);
     myDescriptionComponent.setEditable(false);

     myDescriptionPanel.setVisible(StringUtil.isNotEmpty(description));

     myNameField.setEditable((myTemplate != null) && (!myTemplate.isDefault()));
     myExtensionField.setEditable((myTemplate != null) && (!myTemplate.isDefault()));
     myModified = false;
   }

   @Nullable
   private PsiFile createFile(final String text, final String name) {
     if (myTemplate == null) return null;

     final FileType fileType = myVelocityFileType;
     if (fileType == FileTypes.UNKNOWN) return null;

     final PsiFile file = PsiFileFactory.getInstance(myProject).createFileFromText(name + ".txt.ft", fileType, text, 0, true);
     file.getViewProvider().putUserData(FileTemplateManager.DEFAULT_TEMPLATE_PROPERTIES, FileTemplateManager.getInstance().getDefaultProperties(myProject));
     return file;
   }

   @Override
   public void disposeUIResources() {
     myMainPanel = null;
     if (myTemplateEditor != null) {
       EditorFactory.getInstance().releaseEditor(myTemplateEditor);
       myTemplateEditor = null;
     }
     myFile = null;
   }

   private EditorHighlighter createHighlighter() {
     if (myTemplate != null && myVelocityFileType != FileTypes.UNKNOWN) {
       return EditorHighlighterFactory.getInstance().createEditorHighlighter(myProject, new LightVirtualFile("aaa." + myTemplate.getExtension() + ".ft"));
     }

     FileType fileType = null;
     if (myTemplate != null) {
       fileType = FileTypeManager.getInstance().getFileTypeByExtension(myTemplate.getExtension());
     }
     if (fileType == null) {
       fileType = FileTypes.PLAIN_TEXT;
     }

     SyntaxHighlighter originalHighlighter = SyntaxHighlighterFactory.getSyntaxHighlighter(fileType, null, null);
     if (originalHighlighter == null) {
       originalHighlighter = new PlainSyntaxHighlighter();
     }

     final EditorColorsScheme scheme = EditorColorsManager.getInstance().getGlobalScheme();
     LayeredLexerEditorHighlighter highlighter = new LayeredLexerEditorHighlighter(new TemplateHighlighter(), scheme);
     highlighter.registerLayer(FileTemplateTokenType.TEXT, new LayerDescriptor(originalHighlighter, ""));
     return highlighter;
   }

   private static class TemplateHighlighter extends SyntaxHighlighterBase {
     private final Lexer myLexer;

     public TemplateHighlighter() {
       myLexer = new MergingLexerAdapter(new FlexAdapter(new FileTemplateTextLexer()), TokenSet.create(FileTemplateTokenType.TEXT));
     }

     @NotNull
     @Override
     public Lexer getHighlightingLexer() {
       return myLexer;
     }

     @Override
     @NotNull
     public TextAttributesKey[] getTokenHighlights(IElementType tokenType) {
       if (tokenType == FileTemplateTokenType.MACRO || tokenType == FileTemplateTokenType.DIRECTIVE) {
         return pack(TemplateColors.TEMPLATE_VARIABLE_ATTRIBUTES);
       }

       return EMPTY;
     }
   }


   public void focusToNameField() {
     myNameField.selectAll();
     myNameField.requestFocus();
   }

   public void focusToExtensionField() {
     myExtensionField.selectAll();
     myExtensionField.requestFocus();
   }
 }
	/*
	* 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.ide.fileTemplates.impl;

	import com.intellij.codeInsight.template.impl.TemplateColors;
	import com.intellij.ide.DataManager;
	import com.intellij.ide.IdeBundle;
	import com.intellij.ide.fileTemplates.FileTemplate;
	import com.intellij.ide.fileTemplates.FileTemplateManager;
	import com.intellij.lexer.FlexAdapter;
	import com.intellij.lexer.Lexer;
	import com.intellij.lexer.MergingLexerAdapter;
	import com.intellij.openapi.actionSystem.CommonDataKeys;
	import com.intellij.openapi.diagnostic.Logger;
	import com.intellij.openapi.editor.Document;
	import com.intellij.openapi.editor.Editor;
	import com.intellij.openapi.editor.EditorFactory;
	import com.intellij.openapi.editor.EditorSettings;
	import com.intellij.openapi.editor.colors.EditorColors;
	import com.intellij.openapi.editor.colors.EditorColorsManager;
	import com.intellij.openapi.editor.colors.EditorColorsScheme;
	import com.intellij.openapi.editor.colors.TextAttributesKey;
	import com.intellij.openapi.editor.event.DocumentAdapter;
	import com.intellij.openapi.editor.event.DocumentEvent;
	import com.intellij.openapi.editor.ex.EditorEx;
	import com.intellij.openapi.editor.ex.util.LayerDescriptor;
	import com.intellij.openapi.editor.ex.util.LayeredLexerEditorHighlighter;
	import com.intellij.openapi.editor.highlighter.EditorHighlighter;
	import com.intellij.openapi.editor.highlighter.EditorHighlighterFactory;
	import com.intellij.openapi.fileTypes.*;
	import com.intellij.openapi.options.Configurable;
	import com.intellij.openapi.options.ConfigurationException;
	import com.intellij.openapi.project.Project;
	import com.intellij.openapi.project.ProjectManager;
	import com.intellij.openapi.ui.Splitter;
	import com.intellij.openapi.util.Comparing;
	import com.intellij.openapi.util.io.FileUtil;
	import com.intellij.openapi.util.text.StringUtil;
	import com.intellij.psi.PsiDocumentManager;
	import com.intellij.psi.PsiFile;
	import com.intellij.psi.PsiFileFactory;
	import com.intellij.psi.tree.IElementType;
	import com.intellij.psi.tree.TokenSet;
	import com.intellij.testFramework.LightVirtualFile;
	import com.intellij.ui.ScrollPaneFactory;
	import com.intellij.ui.SeparatorFactory;
	import com.intellij.util.containers.ContainerUtil;
	import com.intellij.util.ui.UIUtil;
	import org.jetbrains.annotations.NonNls;
	import org.jetbrains.annotations.NotNull;
	import org.jetbrains.annotations.Nullable;

	import javax.swing.*;
	import javax.swing.event.ChangeEvent;
	import javax.swing.event.ChangeListener;
	import java.awt.*;
	import java.awt.event.FocusAdapter;
	import java.awt.event.FocusEvent;
	import java.io.File;
	import java.io.IOException;
	import java.net.URL;
	import java.util.List;

	/*
	* @author: MYakovlev
	* Date: Jul 26, 2002
	* Time: 12:46:00 PM
	*/

	public class FileTemplateConfigurable implements Configurable, Configurable.NoScroll {
	private static final Logger LOG = Logger.getInstance("#com.intellij.ide.fileTemplates.impl.FileTemplateConfigurable");
	@NonNls private static final String EMPTY_HTML = "<html></html>";
	@NonNls private static final String CONTENT_TYPE_PLAIN = "text/plain";

	private JPanel myMainPanel;
	private FileTemplate myTemplate;
	private PsiFile myFile;
	private Editor myTemplateEditor;
	private JTextField myNameField;
	private JTextField myExtensionField;
	private JCheckBox myAdjustBox;
	private JPanel myTopPanel;
	private JEditorPane myDescriptionComponent;
	private boolean myModified = false;
	private URL myDefaultDescriptionUrl;
	private final Project myProject;

	private final List<ChangeListener> myChangeListeners = ContainerUtil.createLockFreeCopyOnWriteList();
	private Splitter mySplitter;
	private final FileType myVelocityFileType = FileTypeManager.getInstance().getFileTypeByExtension("ft");
	private JPanel myDescriptionPanel;

	public FileTemplateConfigurable() {
	Project project = CommonDataKeys.PROJECT.getData(DataManager.getInstance().getDataContext());
	myProject = project != null ? project : ProjectManager.getInstance().getDefaultProject();
	}

	public FileTemplate getTemplate() {
	return myTemplate;
	}

	public void setTemplate(FileTemplate template, URL defaultDescription) {
	myDefaultDescriptionUrl = defaultDescription;
	myTemplate = template;
	if (myMainPanel != null) {
	reset();
	myNameField.selectAll();
	myExtensionField.selectAll();
	}
	}

	public void setShowInternalMessage(String message) {
	if (message == null) {
	myTopPanel.removeAll();
	myTopPanel.add(new JLabel(IdeBundle.message("label.name")),
	new GridBagConstraints(0, 0, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE,
	new Insets(0, 0, 0, 2), 0, 0));
	myTopPanel.add(myNameField,
	new GridBagConstraints(1, 0, 1, 1, 1.0, 0.0, GridBagConstraints.CENTER,
	GridBagConstraints.HORIZONTAL, new Insets(0, 2, 0, 2), 0, 0));
	myTopPanel.add(new JLabel(IdeBundle.message("label.extension")),
	new GridBagConstraints(2, 0, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE,
	new Insets(0, 2, 0, 2), 0, 0));
	myTopPanel.add(myExtensionField,
	new GridBagConstraints(3, 0, 1, 1, .3, 0.0, GridBagConstraints.CENTER,
	GridBagConstraints.HORIZONTAL, new Insets(0, 2, 0, 0), 0, 0));
	myExtensionField.setColumns(7);
	}
	else {
	myTopPanel.removeAll();
	myTopPanel.add(new JLabel(message),
	new GridBagConstraints(0, 0, 4, 1, 1.0, 0.0, GridBagConstraints.WEST,
	GridBagConstraints.HORIZONTAL, new Insets(0, 0, 0, 0), 0, 0));
	myTopPanel.add(Box.createVerticalStrut(myNameField.getPreferredSize().height),
	new GridBagConstraints(4, 0, 1, 1, 0.0, 0.0, GridBagConstraints.WEST,
	GridBagConstraints.HORIZONTAL, new Insets(0, 0, 0, 0), 0, 0));
	}
	myMainPanel.revalidate();
	myTopPanel.repaint();
	}

	public void setShowAdjustCheckBox(boolean show) {
	myAdjustBox.setEnabled(show);
	}

	@Override
	public String getDisplayName() {
	return IdeBundle.message("title.file.templates");
	}

	@Override
	public String getHelpTopic() {
	return null;
	}

	@Override
	public JComponent createComponent() {
	myMainPanel = new JPanel(new GridBagLayout());
	myNameField = new JTextField();
	myExtensionField = new JTextField();
	mySplitter = new Splitter(true, 0.4f);

	myTemplateEditor = createEditor();

	myDescriptionComponent = new JEditorPane(UIUtil.HTML_MIME, EMPTY_HTML);
	myDescriptionComponent.setEditable(false);

	myAdjustBox = new JCheckBox(IdeBundle.message("checkbox.reformat.according.to.style"));
	myTopPanel = new JPanel(new GridBagLayout());

	myDescriptionPanel = new JPanel(new GridBagLayout());
	myDescriptionPanel.add(SeparatorFactory.createSeparator(IdeBundle.message("label.description"), null),
	new GridBagConstraints(0, 0, 1, 1, 0.0, 0.0, GridBagConstraints.WEST, GridBagConstraints.HORIZONTAL,
	new Insets(0, 0, 2, 0), 0, 0));
	myDescriptionPanel.add(ScrollPaneFactory.createScrollPane(myDescriptionComponent),
	new GridBagConstraints(0, 1, 1, 1, 1.0, 1.0, GridBagConstraints.CENTER, GridBagConstraints.BOTH,
	new Insets(2, 0, 0, 0), 0, 0));

	myMainPanel.add(myTopPanel,
	new GridBagConstraints(0, 0, 4, 1, 1.0, 0.0, GridBagConstraints.CENTER,
	GridBagConstraints.HORIZONTAL, new Insets(0, 0, 2, 0), 0, 0));
	myMainPanel.add(myAdjustBox,
	new GridBagConstraints(0, 1, 4, 1, 0.0, 0.0, GridBagConstraints.WEST,
	GridBagConstraints.HORIZONTAL, new Insets(2, 0, 2, 0), 0, 0));
	myMainPanel.add(mySplitter,
	new GridBagConstraints(0, 2, 4, 1, 1.0, 1.0, GridBagConstraints.CENTER, GridBagConstraints.BOTH,
	new Insets(2, 0, 0, 0), 0, 0));

	mySplitter.setSecondComponent(myDescriptionPanel);
	setShowInternalMessage(null);

	myNameField.addFocusListener(new FocusAdapter() {
	@Override
	public void focusLost(@NotNull FocusEvent e) {
	onNameChanged();
	}
	});
	myExtensionField.addFocusListener(new FocusAdapter() {
	@Override
	public void focusLost(@NotNull FocusEvent e) {
	onNameChanged();
	}
	});
	myMainPanel.setPreferredSize(new Dimension(400, 300));
	return myMainPanel;
	}

	private Editor createEditor() {
	EditorFactory editorFactory = EditorFactory.getInstance();
	Document doc = myFile == null
	? editorFactory.createDocument(myTemplate == null ? "" : myTemplate.getText())
	: PsiDocumentManager.getInstance(myFile.getProject()).getDocument(myFile);
	assert doc != null;
	Editor editor = editorFactory.createEditor(doc, myProject);

	EditorSettings editorSettings = editor.getSettings();
	editorSettings.setVirtualSpace(false);
	editorSettings.setLineMarkerAreaShown(false);
	editorSettings.setIndentGuidesShown(false);
	editorSettings.setLineNumbersShown(false);
	editorSettings.setFoldingOutlineShown(false);
	editorSettings.setAdditionalColumnsCount(3);
	editorSettings.setAdditionalLinesCount(3);

	EditorColorsScheme scheme = editor.getColorsScheme();
	scheme.setColor(EditorColors.CARET_ROW_COLOR, null);

	editor.getDocument().addDocumentListener(new DocumentAdapter() {
	@Override
	public void documentChanged(DocumentEvent e) {
	onTextChanged();
	}
	});

	((EditorEx)editor).setHighlighter(createHighlighter());
	mySplitter.setFirstComponent(editor.getComponent());
	return editor;
	}

	private void onTextChanged() {
	myModified = true;
	}

	public String getNameValue() {
	return myNameField.getText();
	}

	public String getExtensionValue() {
	return myExtensionField.getText();
	}

	private void onNameChanged() {
	ChangeEvent event = new ChangeEvent(this);
	for (ChangeListener changeListener : myChangeListeners) {
	changeListener.stateChanged(event);
	}
	}

	public void addChangeListener(ChangeListener listener) {
	if (!myChangeListeners.contains(listener)) {
	myChangeListeners.add(listener);
	}
	}

	public void removeChangeListener(ChangeListener listener) {
	myChangeListeners.remove(listener);
	}

	@Override
	public boolean isModified() {
	if (myModified) {
	return true;
	}
	String name = (myTemplate == null) ? "" : myTemplate.getName();
	String extension = (myTemplate == null) ? "" : myTemplate.getExtension();
	if (!Comparing.equal(name, myNameField.getText())) {
	return true;
	}
	if (!Comparing.equal(extension, myExtensionField.getText())) {
	return true;
	}
	if (myTemplate != null) {
	if (myTemplate.isReformatCode() != myAdjustBox.isSelected()) {
	return true;
	}
	}
	return false;
	}

	@Override
	public void apply() throws ConfigurationException {
	if (myTemplate != null) {
	myTemplate.setText(myTemplateEditor.getDocument().getText());
	String name = myNameField.getText();
	String extension = myExtensionField.getText();
	if (name.length() == 0 \|\| !isValidFilename(name + "." + extension)) {
	throw new ConfigurationException(IdeBundle.message("error.invalid.template.file.name.or.extension"));
	}
	myTemplate.setName(name);
	myTemplate.setExtension(extension);
	myTemplate.setReformatCode(myAdjustBox.isSelected());
	}
	myModified = false;
	}

	// TODO: needs to be generalized someday for other profiles
	private static boolean isValidFilename(final String filename) {
	if ( filename.contains("/") \|\| filename.contains("\\") \|\| filename.contains(":") ) {
	return false;
	}
	final File tempFile = new File (FileUtil.getTempDirectory() + File.separator + filename);
	return FileUtil.ensureCanCreateFile(tempFile);
	}

	@Override
	public void reset() {
	final String text = (myTemplate == null) ? "" : myTemplate.getText();
	String name = (myTemplate == null) ? "" : myTemplate.getName();
	String extension = (myTemplate == null) ? "" : myTemplate.getExtension();
	String description = (myTemplate == null) ? "" : myTemplate.getDescription();

	if ((description.length() == 0) && (myDefaultDescriptionUrl != null)) {
	try {
	description = UrlUtil.loadText(myDefaultDescriptionUrl);
	}
	catch (IOException e) {
	LOG.error(e);
	}
	}

	EditorFactory.getInstance().releaseEditor(myTemplateEditor);
	myFile = createFile(text, name);
	myTemplateEditor = createEditor();

	boolean adjust = (myTemplate != null) && myTemplate.isReformatCode();
	myNameField.setText(name);
	myExtensionField.setText(extension);
	myAdjustBox.setSelected(adjust);
	String desc = description.length() > 0 ? description : EMPTY_HTML;

	// [myakovlev] do not delete these stupid lines! Or you get Exception!
	myDescriptionComponent.setContentType(CONTENT_TYPE_PLAIN);
	myDescriptionComponent.setEditable(true);
	myDescriptionComponent.setText(desc);
	myDescriptionComponent.setContentType(UIUtil.HTML_MIME);
	myDescriptionComponent.setText(desc);
	myDescriptionComponent.setCaretPosition(0);
	myDescriptionComponent.setEditable(false);

	myDescriptionPanel.setVisible(StringUtil.isNotEmpty(description));

	myNameField.setEditable((myTemplate != null) && (!myTemplate.isDefault()));
	myExtensionField.setEditable((myTemplate != null) && (!myTemplate.isDefault()));
	myModified = false;
	}

	@Nullable
	private PsiFile createFile(final String text, final String name) {
	if (myTemplate == null) return null;

	final FileType fileType = myVelocityFileType;
	if (fileType == FileTypes.UNKNOWN) return null;

	final PsiFile file = PsiFileFactory.getInstance(myProject).createFileFromText(name + ".txt.ft", fileType, text, 0, true);
	file.getViewProvider().putUserData(FileTemplateManager.DEFAULT_TEMPLATE_PROPERTIES, FileTemplateManager.getInstance().getDefaultProperties(myProject));
	return file;
	}

	@Override
	public void disposeUIResources() {
	myMainPanel = null;
	if (myTemplateEditor != null) {
	EditorFactory.getInstance().releaseEditor(myTemplateEditor);
	myTemplateEditor = null;
	}
	myFile = null;
	}

	private EditorHighlighter createHighlighter() {
	if (myTemplate != null && myVelocityFileType != FileTypes.UNKNOWN) {
	return EditorHighlighterFactory.getInstance().createEditorHighlighter(myProject, new LightVirtualFile("aaa." + myTemplate.getExtension() + ".ft"));
	}

	FileType fileType = null;
	if (myTemplate != null) {
	fileType = FileTypeManager.getInstance().getFileTypeByExtension(myTemplate.getExtension());
	}
	if (fileType == null) {
	fileType = FileTypes.PLAIN_TEXT;
	}

	SyntaxHighlighter originalHighlighter = SyntaxHighlighterFactory.getSyntaxHighlighter(fileType, null, null);
	if (originalHighlighter == null) {
	originalHighlighter = new PlainSyntaxHighlighter();
	}

	final EditorColorsScheme scheme = EditorColorsManager.getInstance().getGlobalScheme();
	LayeredLexerEditorHighlighter highlighter = new LayeredLexerEditorHighlighter(new TemplateHighlighter(), scheme);
	highlighter.registerLayer(FileTemplateTokenType.TEXT, new LayerDescriptor(originalHighlighter, ""));
	return highlighter;
	}

	private static class TemplateHighlighter extends SyntaxHighlighterBase {
	private final Lexer myLexer;

	public TemplateHighlighter() {
	myLexer = new MergingLexerAdapter(new FlexAdapter(new FileTemplateTextLexer()), TokenSet.create(FileTemplateTokenType.TEXT));
	}

	@NotNull
	@Override
	public Lexer getHighlightingLexer() {
	return myLexer;
	}

	@Override
	@NotNull
	public TextAttributesKey[] getTokenHighlights(IElementType tokenType) {
	if (tokenType == FileTemplateTokenType.MACRO \|\| tokenType == FileTemplateTokenType.DIRECTIVE) {
	return pack(TemplateColors.TEMPLATE_VARIABLE_ATTRIBUTES);
	}

	return EMPTY;
	}
	}


	public void focusToNameField() {
	myNameField.selectAll();
	myNameField.requestFocus();
	}

	public void focusToExtensionField() {
	myExtensionField.selectAll();
	myExtensionField.requestFocus();
	}
	}