package org.eparapher.rcp.preferences;

import org.apache.log4j.Logger;
import org.eclipse.jface.preference.BooleanFieldEditor;
import org.eclipse.jface.preference.ComboFieldEditor;
import org.eclipse.jface.preference.FieldEditorPreferencePage;
import org.eclipse.jface.preference.RadioGroupFieldEditor;
import org.eclipse.jface.preference.StringFieldEditor;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.swt.SWT;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;
import org.eparapher.core.signature.XMLSignatureParameters;
import org.eparapher.rcp.Activator;


public class XMLSignaturePreferencePage extends FieldEditorPreferencePage implements
		IWorkbenchPreferencePage {

	private static Logger log = Logger.getLogger(XMLSignaturePreferencePage.class);
	
	public static final String ID = "org.eparapher.rcp.preferences.XMLSignaturePreferencePage";

	BooleanFieldEditor replacewithsignedxml;
	BooleanFieldEditor dtdvalidation;
	
	RadioGroupFieldEditor xmlsignatureformat;
	
	ComboFieldEditor xmldigestformat;
	ComboFieldEditor xmlsignaturealg;
	ComboFieldEditor xmltransform;
	ComboFieldEditor xmlcanonical;

	StringFieldEditor objectID;


	public XMLSignaturePreferencePage() {
		super(GRID);
		setPreferenceStore(Activator.getDefault().getPreferenceStore());
		setDescription("Set your default xml signature settings here");
	}

	public void init(IWorkbench workbench) {

	}

	protected void createFieldEditors() {

		
		xmlsignatureformat = new RadioGroupFieldEditor( PreferenceConstants.P_XML_SIGFORMAT,  "&XML Signature format : ", 3, XMLSignatureParameters.XMLSigFormatFamilies, getFieldEditorParent(), true);
		addField(xmlsignatureformat);
		

		xmltransform       = new ComboFieldEditor( PreferenceConstants.P_XML_TRANSFORM,  "&XML Document transform : ", XMLSignatureParameters.XMLTransformFamilies, getFieldEditorParent());
		addField(xmltransform);

		xmlcanonical       = new ComboFieldEditor( PreferenceConstants.P_XML_CANONICAL,  "&XML Document canonical : ", XMLSignatureParameters.XMLCanonicalFamilies, getFieldEditorParent());
		addField(xmlcanonical); 

		objectID     = new StringFieldEditor( PreferenceConstants.P_XML_OBJECTIDs,"&Object ID :",  getFieldEditorParent());
		addField(objectID);
		
		
		xmldigestformat    = new ComboFieldEditor( PreferenceConstants.P_XML_DIGEST,     "&XML Signature digest : ", XMLSignatureParameters.XMLHashAlgFamilies, getFieldEditorParent());
		addField(xmldigestformat);
		
		xmlsignaturealg    = new ComboFieldEditor( PreferenceConstants.P_XML_SIGALG,     "&XML Signature Algorithm : ", XMLSignatureParameters.XMLSigAlgFamilies, getFieldEditorParent());
		addField(xmlsignaturealg);
		
		replacewithsignedxml = new BooleanFieldEditor(PreferenceConstants.P_XML_OVERWRITE,"&Overwrite the original XML file?", SWT.NONE, getFieldEditorParent());
		addField(replacewithsignedxml);

		dtdvalidation = new BooleanFieldEditor(PreferenceConstants.P_XML_DTDVALIDATION,"&Enable XML DTD Validation", SWT.NONE, getFieldEditorParent());
		addField(dtdvalidation);
		
		//if (EPConfig.isXMLDetachedSignature())
		//	filenamepart.setEnabled(false, getFieldEditorParent());

	}
	
	public void propertyChange(PropertyChangeEvent event) {
		super.propertyChange(event);
		String selectedvalue    = (String) event.getNewValue().toString();
		String oldselectedvalue = (String) event.getOldValue().toString();
		//eParapherTools.debugMessage("old : '" + oldselectedvalue  + "'    new : '" + selectedvalue +"'     source : "  + event.getSource().toString());
		if (!selectedvalue.equals(oldselectedvalue)) {
			if (event.getSource() instanceof RadioGroupFieldEditor) {
				String prefname = ((RadioGroupFieldEditor) event.getSource()).getPreferenceName();
				if (prefname.equals(PreferenceConstants.P_XML_SIGFORMAT))
					if (selectedvalue.equals(XMLSignatureParameters.XMLSigFormatFamilies[2][1])) {
						objectID.setEnabled(true, getFieldEditorParent());
					} else {
						objectID.setEnabled(false, getFieldEditorParent());
					}
					if (selectedvalue.equals(XMLSignatureParameters.XMLSigFormatFamilies[1][1])) {
						xmltransform.setEnabled(true, getFieldEditorParent());
					} else {
						xmltransform.setEnabled(false, getFieldEditorParent());
					}
					if (selectedvalue.equals(XMLSignatureParameters.XMLSigFormatFamilies[0][1])) {
						replacewithsignedxml.setEnabled(false, getFieldEditorParent());
					} else {
						replacewithsignedxml.setEnabled(true, getFieldEditorParent());
					}
			}
		}
	}
}