/*******************************************************************************
 * Copyright (c) 2007 Oracle Corporation.
 * 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:
 *    Oracle - initial API and implementation
 *    
 ********************************************************************************/
package org.eclipse.jst.pagedesigner.properties.celleditors;

import java.util.List;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.jface.viewers.TextCellEditor;
import org.eclipse.jst.jsf.common.metadata.Trait;
import org.eclipse.jst.jsf.common.metadata.internal.TraitValueHelper;
import org.eclipse.jst.jsf.common.metadata.query.TaglibDomainMetaDataQueryHelper;
import org.eclipse.jst.jsf.common.ui.internal.dialogfield.DialogField;
import org.eclipse.jst.jsf.metadataprocessors.features.IDefaultValue;
import org.eclipse.jst.jsf.metadataprocessors.features.IPossibleValues;
import org.eclipse.jst.pagedesigner.editors.properties.IPropertyPageDescriptor;
import org.eclipse.jst.pagedesigner.jsp.core.IJSPCoreConstants;
import org.eclipse.jst.pagedesigner.meta.ITagAttributeCellEditorFactory;
import org.eclipse.jst.pagedesigner.meta.IAttributeRuntimeValueType;
import org.eclipse.jst.pagedesigner.properties.dialogfields.MDEnabledComboDialogField;
import org.eclipse.jst.pagedesigner.ui.dialogfields.ClasspathResourceButtonDialogField;
import org.eclipse.jst.pagedesigner.ui.dialogfields.ContextableResourceButtonDialogField;
import org.eclipse.jst.pagedesigner.ui.dialogfields.StyleButtonDialogField;
import org.eclipse.jst.pagedesigner.utils.StructuredModelUtil;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMElement;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMModel;
import org.w3c.dom.Element;

/**
 * 
 * @author mengbo
 */
public class CellEditorFactory implements ITagAttributeCellEditorFactory {
	public CellEditor createCellEditor(Composite parent,
			IPropertyPageDescriptor attr, Element element) {
		
		String type = attr.getValueType();
		
		IPossibleValues pvs = (IPossibleValues)attr.getAdapter(IPossibleValues.class);
		IDefaultValue defaultValue = (IDefaultValue)attr.getAdapter(IDefaultValue.class);
//		ICellEditorValidator validator = (ICellEditorValidator)attr.getAdapter(ICellEditorValidator.class);
		CellEditor ed = null;
		if (IAttributeRuntimeValueType.RELATIVEPATH.equalsIgnoreCase(type)|| IAttributeRuntimeValueType.WEBPATH.equalsIgnoreCase(type)) {
			IProject project = getProject(element);
			if (project != null) {
//				String typeParam = TraitValueHelper.getValueAsString(TaglibDomainMetaDataQueryHelper.getTrait(attr.getMetaDataContext().getEntity(),"type-param"));
				ResourceDialogCellEditor cellEditor = new ResourceDialogCellEditor(
						parent);
				Trait fileExt = TaglibDomainMetaDataQueryHelper.getTrait(attr.getMetaDataContext().getEntity(), "file-extensions"); //$NON-NLS-1$
				Trait separator = TaglibDomainMetaDataQueryHelper.getTrait(attr.getMetaDataContext().getEntity(), "separator"); //$NON-NLS-1$
				String[] fileExts = null;
				if (fileExt != null){
					List exts = TraitValueHelper.getValueAsListOfStrings(fileExt);
					fileExts = (String[])exts.toArray(new String[exts.size()]);
				} 
				
				String sep = null;
				if (separator != null)
					sep = TraitValueHelper.getValueAsString(separator);
				
				if (fileExts != null)
					cellEditor.setSuffixs(fileExts);
				if (sep != null)
					cellEditor.setSeparator(sep);

				cellEditor.setProject(project);
				cellEditor.setReferredFile(getFile(element));

				if (IAttributeRuntimeValueType.WEBPATH.equalsIgnoreCase(type)) {
					cellEditor.setWebPath(true);
				}

				if (IJSPCoreConstants.TAG_DIRECTIVE_INCLUDE.equals(element
						.getLocalName())
						|| IJSPCoreConstants.TAG_INCLUDE.equals(element
								.getLocalName())) {
					cellEditor.setTransformJSPURL(false);
				}
				ed = cellEditor;
			}
		} 
		else if (IAttributeRuntimeValueType.RESOURCEBUNDLE.equals(type)) {
			ed = new LoadbundleSelectionCellEditor(parent,
					getProject(element));
		}
		else if (IAttributeRuntimeValueType.CSSSTYLE.equalsIgnoreCase(type)) {
//				String param = getParamterValue(attr, "style");
////							.getParameterByName(IAttributeDescriptor.PARAMETER_STYLE);
//				if (!param.equalsIgnoreCase("STYLE")) {
//					return null;
//				}
				CSSDialogCellEditor cellEditor = new CSSDialogCellEditor(parent,
						(IDOMElement) element);
				ed = cellEditor;
		}
		else if (pvs != null && pvs.getPossibleValues().size() > 0) {
//			if (validator != null) 
//				ed = LabeledStyleComboCellEditor.newInstance(parent, pvs,
//	            		defaultValue, SWT.DROP_DOWN | SWT.READ_ONLY);
//			else 
				ed = LabeledStyleComboCellEditor.newInstance(parent, pvs,
            		defaultValue, SWT.NONE);
	
		}
		
//		} else if (IAttributeRuntimeValueType.CSSID.equalsIgnoreCase(type)) {
//		    // TODO: missing case?

		else {
			ed = new TextCellEditor(parent);
		}
//		if (validator != null){
//			ed.setValidator(validator);
//		}
		
		return ed;
	}


//	private String getParamterValue(IPropertyPageDescriptor attr, String traitKey) {
//		Trait trait = TaglibDomainMetaDataQueryHelper.getTrait(attr.getMetaDataContext().getEntity(), traitKey);
//		if (trait != null){
//			return TraitValueHelper.getValueAsString(trait);
//		}
//		return null;
//	}


	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jst.pagedesigner.meta.NEWMDIAttributeCellEditorFactory#createDialogField(org.eclipse.jst.pagedesigner.meta.IAttributeDescriptor,
	 *      org.w3c.dom.Element, org.w3c.dom.Element)
	 */
	public DialogField createDialogField(IPropertyPageDescriptor attr) {

		String type = attr.getValueType();
		
		IPossibleValues pvs = (IPossibleValues)attr.getAdapter(IPossibleValues.class);
//		IDefaultValue defaultValue = (IDefaultValue)attr.getAdapter(IDefaultValue.class);
//		ICellEditorValidator validator = (ICellEditorValidator)attr.getAdapter(ICellEditorValidator.class);
		
		
		if (IAttributeRuntimeValueType.RELATIVEPATH.equals(type) ||
				IAttributeRuntimeValueType.WEBPATH.equals(type)) {
			Trait fileExt = TaglibDomainMetaDataQueryHelper.getTrait(attr.getMetaDataContext().getEntity(), "file-extensions"); //$NON-NLS-1$
			Trait seperator = TaglibDomainMetaDataQueryHelper.getTrait(attr.getMetaDataContext().getEntity(), "separator"); //$NON-NLS-1$
			
			String[] fileExts = null;
			if (fileExt != null){
				List exts = TraitValueHelper.getValueAsListOfStrings(fileExt);
				fileExts = (String[])exts.toArray(new String[exts.size()]);
			} 
			
			String sep = null;
			if (seperator != null)
				sep = TraitValueHelper.getValueAsString(seperator);
		
			ContextableResourceButtonDialogField field = new ContextableResourceButtonDialogField();
			field.setLabelText(attr.getLabel());
			if (fileExts != null) {
				field.setSuffixs(fileExts);
			}
			
			if (sep != null) {
				field.setSeparator(sep);
			}
			
			if ("".equalsIgnoreCase(field.getSeparator())) { //$NON-NLS-1$
				field.setResourceDescription(ResourceBoundle
						.getString("FileCellEditor.Msg")); //$NON-NLS-1$
			} else {
				field.setResourceDescription(ResourceBoundle
						.getString("FileCellEditor.Msg1")); //$NON-NLS-1$
			}
			field.setWebPath(IAttributeRuntimeValueType.WEBPATH.equals(type));
			field.setRequired(attr.isRequired());
			field.setToolTip(attr.getDescription());
			return field;

		} else if (IAttributeRuntimeValueType.CLASSPATH_RESOURCE.equals(type) ||
				IAttributeRuntimeValueType.RESOURCEBUNDLE.equals(type)) {
			ClasspathResourceButtonDialogField field = new ClasspathResourceButtonDialogField();
			field.setRequired(attr.isRequired());
			field.setToolTip(attr.getDescription());
			field.setLabelText(attr.getLabel());
			return field;
		} else if (IAttributeRuntimeValueType.CSSSTYLE.equalsIgnoreCase(type)) {
//			String param = getParamterValue(attr, "style");
//			if (!"STYLE".equalsIgnoreCase(param)) {
//				return null;
//			}
			StyleButtonDialogField field = new StyleButtonDialogField();
			field.setRequired(attr.isRequired());
			field.setToolTip(attr.getDescription());
			field.setLabelText(attr.getLabel());
			return field;
		
//		// if there is no type or type unknown, then we just return null. and
//		// system will
//		// create default (text cell editor).
		} else if (pvs != null && pvs.getPossibleValues().size() > 0) {
			MDEnabledComboDialogField field = new MDEnabledComboDialogField(SWT.None);
			field.setLabelText(attr.getLabel());
			field.setToolTip(attr.getDescription());
			field.setRequired(attr.isRequired());
			return field;
		}
		return null;
	}

	private IProject getProject(Element element) {
		if (element instanceof IDOMElement) {
			IDOMModel model = ((IDOMElement) element).getModel();
			IFile file = StructuredModelUtil.getFileFor(model);
			if (file != null) {
				return file.getProject();
			}
		}
		return null;
	}

	public String[] getSupportedValueTypes() {
		return null;//default - all!
	}

	private IFile getFile(Element element) {
		if (element instanceof IDOMElement) {
			IDOMModel model = ((IDOMElement) element).getModel();
			IFile file = StructuredModelUtil.getFileFor(model);
			return file;
		}
		return null;
	}
}