com.arondor.common.reflection.gwt.client.presenter.fields.PrimitiveTreeNodePresenter.java Source code

Introduction

Here is the source code for com.arondor.common.reflection.gwt.client.presenter.fields.PrimitiveTreeNodePresenter.java

Source

/*
 *  Copyright 2013, Arondor
 *
 *  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.arondor.common.reflection.gwt.client.presenter.fields;

import com.arondor.common.reflection.gwt.client.event.TreeNodeClearEvent;
import com.arondor.common.reflection.gwt.client.presenter.TreeNodePresenter;
import com.arondor.common.reflection.model.config.ElementConfiguration;
import com.arondor.common.reflection.model.config.ObjectConfigurationFactory;
import com.arondor.common.reflection.model.config.PrimitiveConfiguration;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;

public class PrimitiveTreeNodePresenter implements TreeNodePresenter {
    private final String fieldName;

    private String fieldValue;

    private String defaultValue;

    public interface PrimitiveDisplay extends ValueDisplay<String> {
    }

    private final PrimitiveDisplay primitiveDisplay;

    public PrimitiveTreeNodePresenter(String fieldName, PrimitiveDisplay primitiveDisplay) {
        this.fieldName = fieldName;
        this.primitiveDisplay = primitiveDisplay;
        bind();
    }

    private void bind() {
        primitiveDisplay.addValueChangeHandler(new ValueChangeHandler<String>() {
            public void onValueChange(ValueChangeEvent<String> event) {
                fieldValue = event.getValue();
            }
        });
        primitiveDisplay.addTreeNodeClearHandler(new TreeNodeClearEvent.Handler() {
            public void onTreeNodeClearEvent(TreeNodeClearEvent treeNodeClearEvent) {
                fieldValue = null;
                primitiveDisplay.setDefaultValue(defaultValue);
            }
        });

    }

    public String getFieldName() {
        return fieldName;
    }

    public ElementConfiguration getElementConfiguration(ObjectConfigurationFactory objectConfigurationFactory) {
        if (fieldValue != null && !fieldValue.isEmpty()) {
            return objectConfigurationFactory.createPrimitiveConfiguration(fieldValue);
        }
        return null;
    }

    public void setElementConfiguration(ElementConfiguration elementConfiguration) {
        if (elementConfiguration instanceof PrimitiveConfiguration) {
            PrimitiveConfiguration primitiveConfiguration = (PrimitiveConfiguration) elementConfiguration;
            fieldValue = primitiveConfiguration.getValue();
            if (defaultValue != null) {
                primitiveDisplay.setDefaultValue(defaultValue);
            }
            if (fieldValue != null) {
                primitiveDisplay.setValue(fieldValue);
            }
        }
    }

    public String getDefaultValue() {
        return defaultValue;
    }

    public void setDefaultValue(String defaultValue) {
        this.defaultValue = defaultValue;
    }

    public Display getDisplay() {
        return primitiveDisplay;
    }

}