// This Source Code is in the Public Domain per: http://litesoft.org/License.txt
package org.litesoft.GWT.forms.client.nonpublic;

import org.litesoft.commonfoundation.typeutils.*;
import org.litesoft.ui.def.nonpublic.*;
import org.litesoft.ui.def.nonpublic.support.*;

import com.google.gwt.user.client.ui.*;

public class RelSubFormRowInstanceComponentHandlerImpl
        extends AbstractFormInstanceComponentHandlerWithAttributes
        implements RelSubFormRowInstanceComponentHandler
{
    private RelSubFormInstanceComponentHandlerImpl mParent;
    private String mRowObjectKey;
    private int mRowIndex;
    private FormDataRowKey mFormDataRowKey;
    private Widget mWidget = null;

    public RelSubFormRowInstanceComponentHandlerImpl( RelSubFormInstanceComponentHandlerImpl pParent,
                                                      String pRowObjectKey, int pRowIndex )
    {
        Objects.assertNotNull( "Parent", mParent = pParent );
        mRowObjectKey = Strings.assertNotNullNotEmpty( "RowObjectKey", pRowObjectKey );
        mRowIndex = pRowIndex;
        mFormDataRowKey = new FormDataRowKey( getFormUniqueID(), mRowObjectKey );
    }

    public void init( Widget pWidget )
    {
        Objects.assertNotNull( "Widget", mWidget = pWidget );
        SubFormRowCarrier zRowContainer = mParent.getRowCarrier();
        zRowContainer.insert( mWidget, mRowIndex );
        zRowContainer.membershipChangesComplete();
    }

    public void createTabAttributeAdapter( AttributeMetaData pTabAttributeMetaData )
    {
        SubFormRowCarrier zCarrier = mParent.getRowCarrier();
        addAttributeAdapter( zCarrier.createTabAttributeAdapter( this, pTabAttributeMetaData, mWidget ) );
    }

    public RelSubFormInstanceComponentHandler createRelSubFormInstanceComponentHandler(
            UiRelSubFormDef pSubFormDef, FormMetaData pSubFormMetaData, SubFormRowCarrier pRowCarrier )
    {
        RelSubFormTypeHelper zTypeHelper =
                mParent.getRelSubFormTypeHelperFor( pSubFormDef, pSubFormMetaData );
        return new RelSubFormInstanceComponentHandlerImpl( this, zTypeHelper, pRowCarrier );
    }

    public UberFormInstanceComponentHandler getUberHandler()
    {
        return mParent.getUberHandler();
    }

    public Integer getFormUniqueID()
    {
        return mParent.getFormUniqueID();
    }

    public FormDataRowKey getFormDataRowKey()
    {
        return mFormDataRowKey;
    }

    public FormDataRowKey getParentFormDataRowKey()
    {
        return mParent.getFormDataRowKey();
    }

    // Child Component Handler Management
    protected void LLdispose( UberFormInstanceComponentHandler pUberHandler )
    {
        super.LLdispose( pUberHandler );

        SubFormRowCarrier zRowContainer = mParent.getRowCarrier();
        zRowContainer.remove( mWidget );
        zRowContainer.membershipChangesComplete();

        mParent = null;
        mRowObjectKey = null;
        mWidget = null;
    }

    public String getRowObjectKey()
    {
        return mRowObjectKey;
    }

    public int getRowIndex()
    {
        return mRowIndex;
    }

    public void setRowIndex( int pRowIndex )
    {
        SubFormRowCarrier zRowContainer = mParent.getRowCarrier();
        zRowContainer.insert( mWidget, mRowIndex = pRowIndex ); // auto removes from current parent
        zRowContainer.membershipChangesComplete();
    }

    public void decRowIndex()
    {
        mRowIndex--;
    }

    public void incRowIndex()
    {
        mRowIndex++;
    }

    public Widget getWidget()
    {
        return mWidget;
    }
}