com.intellij.util.ui.RegExInputVerifier.java Source code

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Here is the source code for com.intellij.util.ui.RegExInputVerifier.java

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/*
 * Copyright 2007-2008 Dave Griffith
 *
 * 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.util.ui;

import com.intellij.openapi.ui.Messages;

import javax.swing.*;
import java.text.ParseException;

public class RegExInputVerifier extends InputVerifier {

    public boolean verify(JComponent input) {
        return true;
    }

    public boolean shouldYieldFocus(JComponent input) {
        if (input instanceof JFormattedTextField) {
            final JFormattedTextField ftf = (JFormattedTextField) input;
            final JFormattedTextField.AbstractFormatter formatter = ftf.getFormatter();
            if (formatter != null) {
                try {
                    formatter.stringToValue(ftf.getText());
                } catch (final ParseException e) {
                    SwingUtilities.invokeLater(new Runnable() {
                        public void run() {
                            Messages.showErrorDialog(e.getMessage(), "Malformed Naming Pattern");
                        }
                    });
                }
            }
        }
        return true;
    }
}