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 * Copyright (c) 2008, 2013, Oracle and/or its affiliates.
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 *
 * This file is available and licensed under the following license:
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 *
 *  - Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
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 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the distribution.
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 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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package com.javafx.experiments.scheduleapp.control;

import com.javafx.experiments.scheduleapp.Theme;
import javafx.scene.control.skin.ButtonSkin;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.event.EventHandler;
import javafx.scene.Cursor;
import javafx.scene.control.Button;
import javafx.scene.control.TextField;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.input.MouseEvent;

/**
 * Search field with styling and a clear button
 */
public class SearchBox extends TextField implements ChangeListener<String>{
    private static final Image CLEAR_ICON = new Image(Theme.class.getResource("images/search-clear.png").toExternalForm());
    private final Button clearButton = new Button();

    public SearchBox() {
        getStyleClass().setAll("search-box");
        setPromptText("Search");
        textProperty().addListener(this);
        setPrefHeight(30);
        clearButton.setGraphic(new ImageView(CLEAR_ICON));
        clearButton.setSkin(new ButtonSkin(clearButton));
        clearButton.getStyleClass().clear();
        clearButton.setCursor(Cursor.DEFAULT);
        clearButton.setOnMouseClicked(new EventHandler<MouseEvent>() {
            @Override public void handle(MouseEvent t) {
                setText("");
            }
        });
        clearButton.setVisible(false);
    }

    @Override protected void layoutChildren() {
        super.layoutChildren();
        if (clearButton.getParent() != this) {
            getChildren().add(clearButton);
        }
        clearButton.setLayoutX(getWidth()-26);
        clearButton.resize(26, 30);
    }

    @Override public void changed(ObservableValue<? extends String> ov, String oldValue, String newValue) {
        clearButton.setVisible(newValue.length() > 0);
    }
}