org.eclipse.wb.internal.rcp.databinding.xwt.model.AttributeDocumentEditor.java Source code

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Here is the source code for org.eclipse.wb.internal.rcp.databinding.xwt.model.AttributeDocumentEditor.java

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/*******************************************************************************
 * Copyright (c) 2011 Google, Inc.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Google, Inc. - initial API and implementation
 *******************************************************************************/
package org.eclipse.wb.internal.rcp.databinding.xwt.model;

import org.eclipse.wb.internal.core.utils.execution.RunnableEx;
import org.eclipse.wb.internal.core.utils.xml.DocumentAttribute;
import org.eclipse.wb.internal.core.utils.xml.DocumentElement;
import org.eclipse.wb.internal.rcp.databinding.model.BindableInfo;
import org.eclipse.wb.internal.rcp.databinding.xwt.model.beans.XmlElementBeanBindableInfo;
import org.eclipse.wb.internal.rcp.databinding.xwt.model.widgets.WidgetBindableInfo;
import org.eclipse.wb.internal.rcp.databinding.xwt.model.widgets.XmlObjectReferenceProvider;

import org.apache.commons.lang.StringUtils;

/**
 * 
 * @author lobas_av
 * 
 */
public class AttributeDocumentEditor implements IDocumentEditor {
    private final BindingInfo m_binding;
    private DocumentAttribute m_attribute;

    ////////////////////////////////////////////////////////////////////////////
    //
    // Constructors
    //
    ////////////////////////////////////////////////////////////////////////////
    public AttributeDocumentEditor(BindingInfo binding) {
        m_binding = binding;
    }

    public AttributeDocumentEditor(BindingInfo binding, DocumentAttribute attribute) {
        m_binding = binding;
        m_attribute = attribute;
    }

    ////////////////////////////////////////////////////////////////////////////
    //
    // 
    //
    ////////////////////////////////////////////////////////////////////////////
    private String getValue() throws Exception {
        StringBuffer value = new StringBuffer("{Binding ");
        //
        if (m_binding.getModel() instanceof WidgetBindableInfo) {
            WidgetBindableInfo model = (WidgetBindableInfo) m_binding.getModel();
            String modelProperty = m_binding.getModelProperty().getPresentation().getText();
            value.append(" elementName=" + model.getReference() + ", Path=" + modelProperty);
        } else {
            BindableInfo modelProperty = (BindableInfo) m_binding.getModelProperty();
            String property = StringUtils.remove(modelProperty.getReference(), '"');
            //
            XmlElementBeanBindableInfo model = (XmlElementBeanBindableInfo) m_binding.getModel();
            if (!model.isDataContext()) {
                property = "{StaticResource " + property + "}";
            }
            //
            value.append(" Path=" + property);
        }
        //
        if (m_binding.getMode() != 0) {
            value.append(", Mode=" + BindingInfo.MODES[m_binding.getMode()]);
        }
        if (m_binding.getTriger() != 0) {
            value.append(", updateSourceTrigger=" + BindingInfo.TRIGGERS[m_binding.getTriger()]);
        }
        //
        m_binding.getConverter().appendValue(value);
        m_binding.getValidator().appendValue(value);
        //
        value.append("}");
        //
        return value.toString();
    }

    ////////////////////////////////////////////////////////////////////////////
    //
    // IDocumentEditor
    //
    ////////////////////////////////////////////////////////////////////////////
    public void add() throws Exception {
        m_binding.modify(new RunnableEx() {
            public void run() throws Exception {
                if (m_binding.getModel() instanceof WidgetBindableInfo) {
                    WidgetBindableInfo model = (WidgetBindableInfo) m_binding.getModel();
                    XmlObjectReferenceProvider.generateName(model.getXMLObjectInfo());
                }
                //
                String property = m_binding.getTargetProperty().getPresentation().getText();
                DocumentElement element = m_binding.getTargetElement();
                m_attribute = element.setAttribute(property, getValue());
                m_binding.getConverter().applyChanges(m_attribute);
                m_binding.getValidator().applyChanges(m_attribute);
            }
        });
    }

    public void delete() throws Exception {
        m_binding.modify(new RunnableEx() {
            public void run() throws Exception {
                m_binding.getTargetElement().removeDocumentAttribute(m_attribute);
            }
        });
    }

    public void update() throws Exception {
        final String value = getValue();
        if (!value.equals(m_attribute.getValue())) {
            m_binding.modify(new RunnableEx() {
                public void run() throws Exception {
                    m_attribute.setValue(value);
                    m_binding.getConverter().applyChanges(m_attribute);
                    m_binding.getValidator().applyChanges(m_attribute);
                }
            });
        }
    }

    public int getDefinitionOffset() {
        return m_attribute == null ? -1 : m_attribute.getValueOffset();
    }
}