/*******************************************************************************
 * 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.gef.commands.Command;
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.IWorkbenchPart;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.views.properties.tabbed.ITabbedPropertyConstants;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetWidgetFactory;
import org.eclipse.wst.wsdl.ui.internal.adapters.basic.W11Description;
import org.eclipse.wst.wsdl.ui.internal.adapters.commands.W11EditNamespacesCommand;
import org.eclipse.wst.wsdl.ui.internal.asd.Messages;
import org.eclipse.wst.wsdl.ui.internal.asd.actions.ASDEditNamespacesAction;
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.facade.INamedObject;
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;
		Object obj = getDescription();
		if (obj instanceof IDescription) {
			IDescription description = (IDescription) obj;

			if (event.widget == nameText) {
				Command command = description.getSetNameCommand(nameText.getText());
				executeCommand(command);
			}
			else if (event.widget == prefixText || event.widget == targetNamespaceText) {
				// TODO: The code below is not generic.  We need to revisit this to ensure it is
				// generic.  IDescription needs a getNamespacesInfo() and getEditNamespacesCommand()...
				W11EditNamespacesCommand command = (W11EditNamespacesCommand) ((W11Description) description).getEditNamespacesCommand();
				command.setTargetNamespace(targetNamespaceText.getText());
				command.setTargetNamespacePrefix(prefixText.getText());
				executeCommand(command);
			}
		}

		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();
		
		// Set nameText
		if (nameText == null || nameText.isFocusControl()) {
			return;
		}
		setListenerEnabled(false);
		nameText.setText(""); //$NON-NLS-1$
		if (getDescription() instanceof INamedObject) {
			nameText.setText(((INamedObject) getDescription()).getName());
		}		
		setListenerEnabled(true);
		
		
		// Set targetNamespaceText and prefixText
		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 != null ? newPrefix : "");
			
			// set targetnamespace field and prefix field
			if (targetNS != null)
			{
				targetNamespaceText.setText(targetNS);
			}
      else
      {
        targetNamespaceText.setText("");
      }
			if (newPrefix != null)
			{
				prefixText.setText(newPrefix);
			}
		}
		setListenerEnabled(true);
	}
	
	
	public void widgetSelected(SelectionEvent e)
	{
		if (e.widget == button)	{
			Object obj = getDescription();
			if (obj instanceof IDescription) {
				IWorkbenchPart part = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getActivePart();
				ASDEditNamespacesAction action = new ASDEditNamespacesAction(part, (IDescription) obj);
				action.run();
				refresh();
	        }
		}
	}
}