/*******************************************************************************
 * Copyright (c) 2001, 2006 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.wst.wsdl.ui.internal.asd.properties.sections;

import java.util.List;

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CLabel;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.views.properties.tabbed.ITabbedPropertyConstants;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetWidgetFactory;
import org.eclipse.wst.wsdl.ui.internal.asd.Messages;
import org.eclipse.wst.wsdl.ui.internal.asd.design.editparts.model.AbstractModelCollection;
import org.eclipse.wst.wsdl.ui.internal.asd.facade.IDescription;
import org.eclipse.wst.wsdl.ui.internal.asd.outline.ICategoryAdapter;
import org.eclipse.wst.xml.ui.internal.nsedit.CommonEditNamespacesTargetFieldDialog;
import org.eclipse.wst.xml.ui.internal.nsedit.CommonNamespaceInfoTable;

public class NamespaceSection extends ASDAbstractSection {
	protected String targetNamespace;
	protected List namespaceInfoList;
	protected CommonEditNamespacesTargetFieldDialog editWSDLNamespacesControl;
	protected Button button;
	
	Text nameText;
	Text prefixText;
	Text targetNamespaceText;
	protected CommonNamespaceInfoTable tableViewer;
	private boolean handlingEvent;
	
	/**
	 * @see org.eclipse.wst.common.ui.properties.internal.provisional.ITabbedPropertySection#createControls(org.eclipse.swt.widgets.Composite, org.eclipse.wst.common.ui.properties.internal.provisional.TabbedPropertySheetWidgetFactory)
	 */
	public void createControls(Composite parent, TabbedPropertySheetWidgetFactory factory)
	{
		super.createControls(parent, factory);
		composite =	getWidgetFactory().createFlatFormComposite(parent);
		
		String nameString = Messages.getString("_UI_LABEL_NAME") + ":"; //$NON-NLS-1$ //$NON-NLS-2$
		String prefixString = Messages.getString("_UI_LABEL_PREFIX") + ":"; //$NON-NLS-1$ //$NON-NLS-2$
		String namespaceString = Messages.getString("_UI_LABEL_TARGET_NAMESPACE"); //$NON-NLS-1$
		GC gc = new GC(parent);
		int xoffset = Math.max(115, gc.textExtent(nameString).x + 20); // adds 20 due to borders
		xoffset = Math.max(xoffset, gc.textExtent(prefixString).x + 20); // adds 20 due to borders
		xoffset = Math.max(xoffset, gc.textExtent(namespaceString).x + 20); // adds 20 due to borders
		gc.dispose();
		
		// name
		CLabel nameLabel = getWidgetFactory().createCLabel(composite, nameString); //$NON-NLS-1$
		nameText = getWidgetFactory().createText(composite, ""); //$NON-NLS-1$
		
		// prefix
		CLabel prefixLabel = getWidgetFactory().createCLabel(composite, prefixString); //$NON-NLS-1$
		prefixText = getWidgetFactory().createText(composite, ""); //$NON-NLS-1$
		
		// targetnamespace
		CLabel targetNamespaceLabel = getWidgetFactory().createCLabel(composite, namespaceString); //$NON-NLS-1$
		targetNamespaceText = getWidgetFactory().createText(composite, ""); //$NON-NLS-1$
		
		// Advanced button
		button = getWidgetFactory().createButton(composite, Messages.getString("_UI_SECTION_ADVANCED_ATTRIBUTES") + "...", SWT.PUSH); //$NON-NLS-1$ //$NON-NLS-2$
		
		
		///////////////////// Labels
		// name layout
		FormData dataNameLabel = new FormData();
		dataNameLabel.top = new FormAttachment(nameText, 0, SWT.CENTER);
		nameLabel.setLayoutData(dataNameLabel);
		
		// prefix layout
		FormData dataPrefixLabel = new FormData();
		dataPrefixLabel.left = new FormAttachment(0, 0);
		dataPrefixLabel.top = new FormAttachment(prefixText, 0, SWT.CENTER);
		prefixLabel.setLayoutData(dataPrefixLabel);
		
		// targetNamespaceLabel layout
		FormData datatnsLabel = new FormData();
		datatnsLabel.left = new FormAttachment(0, 0);
		datatnsLabel.right = new FormAttachment(targetNamespaceText, 0);
		datatnsLabel.top = new FormAttachment(targetNamespaceText, 0, SWT.CENTER);
		targetNamespaceLabel.setLayoutData(datatnsLabel);
		
		
		///////////////////// Text Fields
		// name text field
		FormData dataNameText = new FormData();
		dataNameText.left = new FormAttachment(0, xoffset);
		dataNameText.right = new FormAttachment(100, -rightMarginSpace - ITabbedPropertyConstants.HSPACE);
		dataNameText.top = new FormAttachment(0, 0);
		nameText.setLayoutData(dataNameText);
		nameText.addListener(SWT.Modify, this);
		
		// prefix text field
		FormData dataPrefixText = new FormData();
		dataPrefixText.left = new FormAttachment(0, xoffset);
		dataPrefixText.right = new FormAttachment(100, -rightMarginSpace - ITabbedPropertyConstants.HSPACE);
		dataPrefixText.top = new FormAttachment(nameText, +ITabbedPropertyConstants.VSPACE);
		prefixText.setLayoutData(dataPrefixText);
		prefixText.addListener(SWT.Modify, this);
		
		// targetnamespace text field
		FormData data = new FormData();
		data.left = new FormAttachment(0, xoffset);
		data.right = new FormAttachment(100, -rightMarginSpace - ITabbedPropertyConstants.HSPACE);
		data.top = new FormAttachment(prefixText, +ITabbedPropertyConstants.VSPACE);
		targetNamespaceText.setLayoutData(data);
		targetNamespaceText.addListener(SWT.Modify, this);
		
		// Advanced button layout
		FormData dataButton = new FormData();
//		dataButton.left = new FormAttachment(100, -rightMarginSpace + 2);
		dataButton.right = new FormAttachment(100, -rightMarginSpace - ITabbedPropertyConstants.HSPACE);
		dataButton.top = new FormAttachment(targetNamespaceText, +ITabbedPropertyConstants.VSPACE);
//		dataButton.top = new FormAttachment(targetNamespaceText, 0, SWT.CENTER);
		button.setLayoutData(dataButton);
		button.addSelectionListener(this);
	}
	
	public void doHandleEvent(Event event)
	{
		handlingEvent = true;
		/*
		  if (event.widget == nameText) {
		  	Object obj = getElement();
		  	if (obj instanceof Definition) {
		  		Definition definition = (Definition) obj;
		  		String uri = "";
		  		if (definition.getQName() != null) {
		  			uri = definition.getQName().getNamespaceURI();
		  		}
		  		definition.setQName(new QName(uri, nameText.getText()));
		  	}
		  }
		  else if (event.widget == prefixText) {
		  	Object obj = getElement();
		  	if (obj instanceof Definition) {
		  		Definition definition = (Definition) obj;
		  		Element element = definition.getElement();
		  		
		  		// Remove the old prefix
		  		String oldPrefix = definition.getPrefix(definition.getTargetNamespace());
		  		element.removeAttribute("xmlns:"+oldPrefix); 
		  		
		  		// Set the new prefix
		  	  	element.setAttribute("xmlns:" + prefixText.getText(), definition.getTargetNamespace());
		  	}
		  }
		  else if (event.widget == targetNamespaceText)
		  {
			  Object obj = getElement();
			  if (obj instanceof Definition)
			  {
			    Definition definition = (Definition)obj;
			    String newValue = targetNamespaceText.getText();
			    String prefix = definition.getPrefix(definition.getTargetNamespace());
			    definition.setTargetNamespace(newValue);
			    definition.getElement().setAttribute("xmlns:" + prefix, newValue);
			  }
		  }
		 */
		handlingEvent = false;		
	}
	
	protected Object getDescription() {
		Object model = getModel();
		if (model instanceof AbstractModelCollection) {
			model = ((AbstractModelCollection) model).getModel();
			if (model instanceof IDescription) {
				return (IDescription) model;
			}
		}
		else if (model instanceof ICategoryAdapter) {
			return ((ICategoryAdapter) model).getOwnerDescription();
		}
		
		return model;
	}
	/*
	 * @see org.eclipse.wst.common.ui.properties.internal.provisional.view.ITabbedPropertySection#refresh()
	 */
	public void refresh()
	{
		super.refresh();
		
		if (targetNamespaceText == null || targetNamespaceText.isFocusControl() || handlingEvent)
		{
			return;
		}
		setListenerEnabled(false);  
		Object obj = getDescription();
		if (obj instanceof IDescription)
		{
			IDescription description = (IDescription) obj;
			String targetNS = description.getTargetNamespace();
			String newPrefix = description.getTargetNamespacePrefix();
			prefixText.setText(newPrefix);
			
			// set targetnamespace field and prefix field
			if (targetNS != null)
			{
				targetNamespaceText.setText(targetNS);
				
				/*
		    	Element element = definition.getElement();

	        String newPrefix = definition.getPrefix(targetNS);
	        if (newPrefix == null) newPrefix = "";
	        // TODO: remove this code
	        if (element != null)
	        {
	  	    	for (int index = 0; index < element.getAttributes().getLength(); index++) {
	  	    		AttrImpl attr = (AttrImpl) element.getAttributes().item(index);
	  	    		String nodeName = attr.getNodeName();
	  	    		String nsValue = attr.getNodeValue();
	  	    		if (nsValue.equals(targetNS)) {
	  	    			if (nodeName.indexOf(":") != -1) {
	  	    				String xmlnsString = nodeName.substring(0, nodeName.indexOf(":"));
	  	    				
	  	    				if (xmlnsString.equals("xmlns")) {
	  	    	    			newPrefix = attr.getLocalName();
	  	    	    			break;
	  	    				}
	  	    			}
	  	    		}
	  	    	}
	        }
		    	prefixText.setText(newPrefix);
				 */
			}
			
			
			
			// set name field
			nameText.setText(description.getName());
			
//			if (getElement() != null)
//			{
//			if (getElement().getElement()!= null)
//			{
//			String name = getElement().getElement().getAttribute("name"); //$NON-NLS-1$
//			if (name==null) name="";
//			nameText.setText(name);
//			}
//			}
		}
		setListenerEnabled(true);
	}
	
	
	public void widgetSelected(SelectionEvent e)
	{
		if (e.widget == button)
		{
			/*
	      Object obj = getElement();
	      if (obj instanceof Definition)
	      {
	        Definition definition = (Definition)obj;
	        EditNamespacesAction action = new EditNamespacesAction(definition);
	      	action.run();
	        refresh();
	      }
			 */
		}
	}
}