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The Dolphin Platform is a framework that implements the presentation model pattern and provides amodern way to create enterprise applications. The Platform provides several client implementations that all canbe used in combination with a general sever API.

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/*
 * Copyright 2015-2017 Canoo Engineering AG.
 *
 * 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.canoo.dp.impl.client.javafx;

import com.canoo.platform.remoting.client.javafx.BidirectionalConverter;
import com.canoo.platform.core.functional.Binding;
import com.canoo.platform.remoting.client.javafx.Converter;
import com.canoo.platform.remoting.client.javafx.binding.DolphinBinder;
import com.canoo.platform.core.functional.Subscription;
import com.canoo.platform.remoting.Property;
import com.canoo.dp.impl.platform.core.Assert;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import org.apiguardian.api.API;

import static org.apiguardian.api.API.Status.INTERNAL;

@API(since = "0.x", status = INTERNAL)
public class DefaultDolphinBinder implements DolphinBinder {

    private final Property property;

    public DefaultDolphinBinder(final Property property) {
        this.property = Assert.requireNonNull(property, "property");
    }

    @Override
    public  Binding to(final ObservableValue observableValue, final Converter converter) {
        if (observableValue == null) {
            throw new IllegalArgumentException("observableValue must not be null");
        }
        if (converter == null) {
            throw new IllegalArgumentException("converter must not be null");
        }
        final ChangeListener listener = (obs, oldVal, newVal) -> property.set(converter.convert(newVal));
        observableValue.addListener(listener);
        property.set(converter.convert(observableValue.getValue()));
        return () -> observableValue.removeListener(listener);
    }


    @Override
    public  Binding bidirectionalTo(javafx.beans.property.Property javaFxProperty, BidirectionalConverter converter) {
        if (javaFxProperty == null) {
            throw new IllegalArgumentException("javaFxProperty must not be null");
        }
        if (converter == null) {
            throw new IllegalArgumentException("converter must not be null");
        }
        Binding unidirectionalBinding = to(javaFxProperty, converter);
        Subscription subscription = property.onChanged(e -> javaFxProperty.setValue(converter.convertBack(property.get())));
        return () -> {
            unidirectionalBinding.unbind();
            subscription.unsubscribe();
        };
    }
}