/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you 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 groovy.console.ui

import groovy.transform.CompileStatic

import javax.swing.AbstractCellEditor
import javax.swing.JButton
import javax.swing.JComponent
import javax.swing.JTable
import javax.swing.JTextArea
import javax.swing.table.TableCellEditor
import java.awt.Component
import java.awt.event.ActionListener
import java.awt.event.FocusListener

/**
 * A table cell editor that will return a button automatically if it is the cell value,
 * a text field if the value exists, or null otherwise (non editable cell).
 * This hack allows to interact with buttons in a cell.
 */
@CompileStatic
class ButtonOrTextEditor extends AbstractCellEditor implements TableCellEditor {
    private static final long serialVersionUID = -531835454424576665L

    /** The Swing component being edited. */
    protected JComponent editorComponent

    /**
     * Returns an editor component that matches the current cell value.
     */
    @Override
    Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
        if (value instanceof JButton) {
            editorComponent = value
            ((JButton) editorComponent).addActionListener({ e -> fireEditingStopped() } as ActionListener)
        } else if (value instanceof JTextArea) {
            editorComponent = value
        } else if (value) {
            editorComponent = new JTextArea(value.toString())
            editorComponent.addFocusListener({ e -> fireEditingCanceled() } as FocusListener)
        } else {
            editorComponent = null
        }
        editorComponent
    }

    /**
     * Returns the current editor component.
     */
    @Override
    Object getCellEditorValue() {
        editorComponent
    }
}
