/*******************************************************************************
 * Copyright (c) 2004, 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.html.ui.internal.preferences.ui;

import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Preferences;
import org.eclipse.core.runtime.content.IContentType;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Group;
import org.eclipse.ui.PlatformUI;
import org.eclipse.wst.html.core.internal.HTMLCorePlugin;
import org.eclipse.wst.html.core.internal.provisional.contenttype.ContentTypeIdForHTML;
import org.eclipse.wst.html.ui.internal.HTMLUIMessages;
import org.eclipse.wst.html.ui.internal.HTMLUIPlugin;
import org.eclipse.wst.html.ui.internal.editor.IHelpContextIds;
import org.eclipse.wst.sse.core.internal.encoding.CommonEncodingPreferenceNames;
import org.eclipse.wst.xml.ui.internal.preferences.WorkbenchDefaultEncodingSettings;
import org.eclipse.wst.xml.ui.internal.preferences.XMLFilesPreferencePage;

public class HTMLFilesPreferencePage extends XMLFilesPreferencePage {
	private WorkbenchDefaultEncodingSettings fInputEncodingSettings = null;

	protected Preferences getModelPreferences() {
		return HTMLCorePlugin.getDefault().getPluginPreferences();
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.preference.PreferencePage#doGetPreferenceStore()
	 */
	protected IPreferenceStore doGetPreferenceStore() {
		return HTMLUIPlugin.getDefault().getPreferenceStore();
	}

	protected void doSavePreferenceStore() {
		HTMLCorePlugin.getDefault().savePluginPreferences(); // model
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite)
	 */
	protected Control createContents(Composite parent) {
		Composite scrolledComposite = createScrolledComposite(parent);
		createContentsForCreatingGroup(scrolledComposite);
		createContentsForLoadingGroup(scrolledComposite);

		PlatformUI.getWorkbench().getHelpSystem().setHelp(scrolledComposite, IHelpContextIds.HTML_PREFWEBX_FILES_HELPID);

		setSize(scrolledComposite);
		loadPreferences();

		return scrolledComposite;
	}

	protected void createContentsForLoadingGroup(Composite parent) {
		Group group = createGroup(parent, 1);
		group.setText(HTMLUIMessages.HTMLFilesPreferencePage_0);

		fInputEncodingSettings = new WorkbenchDefaultEncodingSettings(group);
	}

	protected IContentType getContentType() {
		return Platform.getContentTypeManager().getContentType(ContentTypeIdForHTML.ContentTypeID_HTML);
	}

	protected void initializeValues() {
		super.initializeValues();
		initializeValuesForLoadingGroup();
	}

	protected void initializeValuesForLoadingGroup() {
		String encoding = getModelPreferences().getString(CommonEncodingPreferenceNames.INPUT_CODESET);

		fInputEncodingSettings.setIANATag(encoding);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.preference.PreferencePage#performDefaults()
	 */
	protected void performDefaults() {
		super.performDefaults();
		performDefaultsForLoadingGroup();
	}

	protected void performDefaultsForLoadingGroup() {
		String encoding = getModelPreferences().getDefaultString(CommonEncodingPreferenceNames.INPUT_CODESET);

		fInputEncodingSettings.setIANATag(encoding);
	}

	protected void storeValues() {
		super.storeValues();
		storeValuesForLoadingGroup();
	}

	protected void storeValuesForLoadingGroup() {
		getModelPreferences().setValue(CommonEncodingPreferenceNames.INPUT_CODESET, fInputEncodingSettings.getIANATag());
	}
}
