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// The MIT License (MIT)
//
// Copyright (c) 2016 Timothy D. Jones
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
package io.github.jonestimd.swing;

import java.util.function.Consumer;

import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;

/**
 * Passes the document text to a {@code Consumer} whenever the document changes.
 */
public class DocumentConsumerAdapter implements DocumentListener {
    private final Consumer consumer;

    public DocumentConsumerAdapter(Consumer consumer) {
        this.consumer = consumer;
    }

    @Override
    public void insertUpdate(DocumentEvent e) {
        documentChanged(e);
    }

    @Override
    public void removeUpdate(DocumentEvent e) {
        documentChanged(e);
    }

    @Override
    public void changedUpdate(DocumentEvent e) {
        documentChanged(e);
    }

    private void documentChanged(DocumentEvent e) {
        try {
            Document document = e.getDocument();
            consumer.accept(document.getText(0, document.getLength()));
        } catch (BadLocationException e1) {
            throw new RuntimeException(e1);
        }
    }
}