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/*
* Copyright 2000-2013 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.intellij.lang.regexp.intention;
import com.intellij.ide.util.PropertiesComponent;
import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.CommonShortcuts;
import com.intellij.openapi.actionSystem.CustomShortcutSet;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.editor.event.DocumentAdapter;
import com.intellij.openapi.editor.event.DocumentEvent;
import com.intellij.openapi.fileTypes.PlainTextFileType;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.ui.popup.Balloon;
import com.intellij.openapi.ui.popup.JBPopupAdapter;
import com.intellij.openapi.ui.popup.LightweightWindowEvent;
import com.intellij.openapi.util.Pair;
import com.intellij.openapi.util.Ref;
import com.intellij.openapi.wm.IdeFocusManager;
import com.intellij.psi.PsiDocumentManager;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.impl.source.resolve.FileContextUtil;
import com.intellij.ui.BalloonImpl;
import com.intellij.ui.EditorTextField;
import com.intellij.ui.Gray;
import com.intellij.ui.JBColor;
import com.intellij.util.Alarm;
import com.intellij.util.ui.UIUtil;
import org.intellij.lang.regexp.RegExpLanguage;
import org.intellij.lang.regexp.RegExpModifierProvider;
import javax.swing.*;
import javax.swing.border.CompoundBorder;
import javax.swing.border.EmptyBorder;
import javax.swing.border.LineBorder;
import java.awt.*;
import java.util.regex.Pattern;
/**
* @author Konstantin Bulenkov
*/
public class CheckRegExpForm {
private static final String LAST_EDITED_REGEXP = "last.edited.regexp";
private Pair<PsiFile, Ref<Balloon>> myParams;
private EditorTextField mySampleText; //TODO[kb]: make it multiline
private EditorTextField myRegExp;
private JPanel myRootPanel;
private Ref<Balloon> myRef;
private Project myProject;
public CheckRegExpForm(Pair<PsiFile, Ref<Balloon>> params) {
myParams = params;
}
private void createUIComponents() {
PsiFile file = myParams.first;
myProject = file.getProject();
myRef = myParams.second;
Document document = PsiDocumentManager.getInstance(myProject).getDocument(file);
myRegExp = new EditorTextField(document, myProject, RegExpLanguage.INSTANCE.getAssociatedFileType());
final String sampleText = PropertiesComponent.getInstance(myProject).getValue(LAST_EDITED_REGEXP, "Sample Text");
mySampleText = new EditorTextField(sampleText, myProject, PlainTextFileType.INSTANCE);
mySampleText.setBorder(
new CompoundBorder(new EmptyBorder(2, 2, 2, 4), new LineBorder(UIUtil.isUnderDarcula() ? Gray._100 : UIUtil.getBorderColor())));
mySampleText.setOneLineMode(false);
mySampleText.addDocumentListener(new DocumentAdapter() {
@Override
public void documentChanged(DocumentEvent e) {
//noinspection SSBasedInspection
SwingUtilities.invokeLater(new Runnable() {
public void run() {
myRootPanel.revalidate();
final Balloon balloon = myRef.get();
if (balloon != null) {
balloon.revalidate();
}
}
});
}
});
myRootPanel = new JPanel(new BorderLayout()) {
@Override
public void addNotify() {
super.addNotify();
IdeFocusManager.getGlobalInstance().requestFocus(mySampleText, true);
new AnAction(){
@Override
public void actionPerformed(AnActionEvent e) {
IdeFocusManager.findInstance().requestFocus(myRegExp.getFocusTarget(), true);
}
}.registerCustomShortcutSet(CustomShortcutSet.fromString("shift TAB"), mySampleText, myRef.get());
final AnAction escaper = new AnAction() {
@Override
public void actionPerformed(AnActionEvent e) {
myRef.get().hide();
}
};
escaper.registerCustomShortcutSet(CommonShortcuts.ESCAPE, myRegExp.getFocusTarget(), myRef.get());
escaper.registerCustomShortcutSet(CommonShortcuts.ESCAPE, mySampleText.getFocusTarget(), myRef.get());
myRef.get().addListener(new JBPopupAdapter() {
@Override
public void onClosed(LightweightWindowEvent event) {
PropertiesComponent.getInstance(myProject).setValue(LAST_EDITED_REGEXP, mySampleText.getText());
}
});
final Alarm updater = new Alarm(Alarm.ThreadToUse.SWING_THREAD, myRef.get());
final DocumentAdapter documentListener = new DocumentAdapter() {
@Override
public void documentChanged(DocumentEvent e) {
updater.cancelAllRequests();
if (!updater.isDisposed()) {
updater.addRequest(new Runnable() {
@Override
public void run() {
updateBalloon();
}
}, 200);
}
}
};
myRegExp.addDocumentListener(documentListener);
mySampleText.addDocumentListener(documentListener);
updateBalloon();
mySampleText.selectAll();
}
};
}
public JPanel getRootPanel() {
return myRootPanel;
}
private void updateBalloon() {
boolean correct = false;
try {
final PsiFile file = myParams.first;
//todo: unfortunately there is no way to access host element representing regexp
int offset = -1;
try {
final String name = file.getName();
offset = Integer.parseInt(name.substring(name.lastIndexOf(':') + 1, name.lastIndexOf(')')));
} catch (Exception ignore) {}
int flags = 0;
if (offset != -1) {
final PsiFile host = FileContextUtil.getContextFile(file);
if (host != null) {
final PsiElement regexpInHost = host.findElementAt(offset);
if (regexpInHost != null) {
for (RegExpModifierProvider provider : RegExpModifierProvider.EP.getExtensions()) {
final int modifiers = provider.getFlags(regexpInHost, file);
if (modifiers > 0) {
flags = modifiers;
break;
}
}
}
}
}
correct = Pattern.compile(myRegExp.getText(), flags).matcher(mySampleText.getText()).matches();
} catch (Exception ignore) {}
mySampleText.setBackground(correct ? new JBColor(new Color(231, 250, 219), new Color(68, 85, 66)) : new JBColor(new Color(255, 177, 160), new Color(110, 43, 40)));
BalloonImpl balloon = (BalloonImpl)myRef.get();
if (balloon != null && balloon.isDisposed()) {
balloon.revalidate();
}
}
}
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