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/*
 * Copyright 2009 the original author or authors.
 *
 * 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 groovy.swing.binding;

import org.codehaus.groovy.binding.*;

import java.awt.event.ComponentEvent;
import java.awt.event.ComponentListener;
import javax.swing.JComponent;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.HashMap;
import java.util.Map;

/**
 * @author Andres Almiray
 * @since Groovy 1.6
 */
public class JComponentProperties {
    public static Map getSyntheticProperties() {
        Map result = new HashMap();
        result.put(JComponent.class.getName() + "#size",
            new TriggerBinding() {
                public FullBinding createBinding(SourceBinding source, TargetBinding target) {
                    return new AbstractJComponentBinding((PropertyBinding) source, target, "size") {
                        public void componentResized(ComponentEvent event) {
                            update();
                        }
                    };
                }
            });
        result.put(JComponent.class.getName() + "#width",
            new TriggerBinding() {
                public FullBinding createBinding(SourceBinding source, TargetBinding target) {
                    return new AbstractJComponentBinding((PropertyBinding) source, target, "width") {
                        public void componentResized(ComponentEvent event) {
                            update();
                        }
                    };
                }
            });
        result.put(JComponent.class.getName() + "#height",
            new TriggerBinding() {
                public FullBinding createBinding(SourceBinding source, TargetBinding target) {
                    return new AbstractJComponentBinding((PropertyBinding) source, target, "height") {
                        public void componentResized(ComponentEvent event) {
                            update();
                        }
                    };
                }
            });
        result.put(JComponent.class.getName() + "#bounds",
            new TriggerBinding() {
                public FullBinding createBinding(SourceBinding source, TargetBinding target) {
                    return new AbstractJComponentBinding((PropertyBinding) source, target, "bounds") {
                        public void componentResized(ComponentEvent event) {
                            update();
                        }
                        public void componentMoved(ComponentEvent event) {
                            update();
                        }
                    };
                }
            });
        result.put(JComponent.class.getName() + "#x",
            new TriggerBinding() {
                public FullBinding createBinding(SourceBinding source, TargetBinding target) {
                    return new AbstractJComponentBinding((PropertyBinding) source, target, "x") {
                        public void componentMoved(ComponentEvent event) {
                            update();
                        }
                    };
                }
            });
        result.put(JComponent.class.getName() + "#y",
            new TriggerBinding() {
                public FullBinding createBinding(SourceBinding source, TargetBinding target) {
                    return new AbstractJComponentBinding((PropertyBinding) source, target, "y") {
                        public void componentMoved(ComponentEvent event) {
                            update();
                        }
                    };
                }
            });
        result.put(JComponent.class.getName() + "#visible",
            new TriggerBinding() {
                public FullBinding createBinding(SourceBinding source, TargetBinding target) {
                    return new AbstractJComponentBinding((PropertyBinding) source, target, "visible") {
                        public void componentHidden(ComponentEvent event) {
                            update();
                        }
                        public void componentShown(ComponentEvent event) {
                            update();
                        }
                    };
                }
            });
        return result;
    }
}

abstract class AbstractJComponentBinding extends AbstractSyntheticBinding implements PropertyChangeListener, ComponentListener {
    JComponent boundComponent;
    String propertyName;

    public AbstractJComponentBinding(PropertyBinding source, TargetBinding target, String propertyName) {
        super(source, target, JComponent.class, propertyName);
        source.setNonChangeCheck(true);
    }

    public synchronized void syntheticBind() {
        boundComponent = (JComponent) ((PropertyBinding)sourceBinding).getBean();
        boundComponent.addPropertyChangeListener(propertyName, this);
        boundComponent.addComponentListener(this);
    }

    public synchronized void syntheticUnbind() {
        boundComponent.removePropertyChangeListener(propertyName, this);
        boundComponent.removeComponentListener(this);
        boundComponent = null;
    }

    public void propertyChange(PropertyChangeEvent event) {
        update();
        ((JComponent)event.getOldValue()).removeComponentListener(this);
        ((JComponent)event.getNewValue()).addComponentListener(this);
    }

    public void componentHidden(ComponentEvent event) {}
    public void componentShown(ComponentEvent event) {}
    public void componentMoved(ComponentEvent event) {}
    public void componentResized(ComponentEvent event) {}
}