/*******************************************************************************
 * Copyright (c) 2004 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.contentproperties.ui;

import java.util.Map;

import org.eclipse.core.resources.IResource;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;
import org.eclipse.swt.widgets.Widget;
import org.eclipse.ui.help.WorkbenchHelp;
import org.eclipse.wst.html.ui.internal.Logger;
import org.eclipse.wst.html.ui.internal.editor.IHelpContextIds;
import org.eclipse.wst.sse.ui.contentproperties.IContentSettings;
import org.eclipse.wst.sse.ui.contentproperties.ui.ComboListOnPropertyPage;
import org.eclipse.wst.sse.ui.contentproperties.ui.ContentSettingsPropertyPage;
import org.eclipse.wst.sse.ui.internal.SSEUIPlugin;

public final class HTMLContentSettingsPropertyPage extends ContentSettingsPropertyPage implements org.eclipse.swt.events.SelectionListener {


	private final int N_DOCUMENT_TYPE = 0;
	private final int N_CSS_PROFILE = 1;
	private final int N_TARGET_DEVICE = 2;

	private Text publicIdText;
	private Text systemIdText;

	public HTMLContentSettingsPropertyPage() {
		super();
		numberOfCombo = 3;
		numCols = 2;
		numRows = 8;
		combo = new ComboListOnPropertyPage[super.numberOfCombo];

	}


	protected void createDocumentTypeComboBox() {

		// create description of implecit DOCTYPE	
		Label label = new Label(propertyPage, SWT.LEFT);
		label.setText(SSEUIPlugin.getResourceString("%UI_Description_of_role_of_following_DOCTYPE"));//$NON-NLS-1$
		GridData data = new GridData();
		data.horizontalAlignment = GridData.FILL;
		data.horizontalSpan = numCols;
		label.setLayoutData(data);

		// create combobox
		super.combo[N_DOCUMENT_TYPE] = super.createComboBoxOf(DOCUMENT_LABEL);
		super.combo[this.N_DOCUMENT_TYPE].addSelectionListener(this);
		// set entry list into Combo
		ContentSettingsRegistry.setHTMLDocumentTypeRegistryInto(combo[N_DOCUMENT_TYPE]);
		//	create TextField
		createIDTextField();
		if (combo[N_DOCUMENT_TYPE].getItemCount() <= 0)
			return;

		String initValue = contentSettings.getProperty((IResource) super.getElement(), IContentSettings.HTML_DOCUMENT_TYPE);
		// when either .contentsettings or element doesn't exist
		// when attribute doesn't exists,getProperty returns empty string.
		if (initValue == null)
			initValue = ""; //$NON-NLS-1$
		// set init selectionItem in Combo
		super.setSelectionItem(combo[N_DOCUMENT_TYPE], initValue);
		this.publicIdText.setText(initValue);
		if (!initValue.equals("")) {//$NON-NLS-1$
			// toro D210260
			if (ContentSettingsRegistry.getSystemIdFrom(initValue) != null)
				this.systemIdText.setText(ContentSettingsRegistry.getSystemIdFrom(initValue));
			else
				this.systemIdText.setText("");//$NON-NLS-1$
		}
		else
			this.systemIdText.setText("");//$NON-NLS-1$

		// create separator
		label = new Label(propertyPage, SWT.SEPARATOR | SWT.HORIZONTAL);
		data = new GridData();
		data.horizontalAlignment = GridData.FILL;
		data.horizontalSpan = numCols;
		data.verticalSpan = 8;
		label.setLayoutData(data);

	}


	protected void createCSSComboBox() {
		super.combo[N_CSS_PROFILE] = super.createComboBoxOf(CSS_LABEL);

		ContentSettingsRegistry.setCSSMetaModelRegistryInto(combo[N_CSS_PROFILE]);
		if (combo[N_CSS_PROFILE].getItemCount() <= 0)
			return;
		String initValue = contentSettings.getProperty((IResource) super.getElement(), IContentSettings.CSS_PROFILE);
		// when either .contentsettings or element doesn't exist
		// when attribute doesn't exists,getProperty returns empty string.
		if (initValue == null)
			initValue = ""; //$NON-NLS-1$
		// set init selectionItem in Combo
		super.setSelectionItem(combo[N_CSS_PROFILE], initValue);
	}


	protected void createDeviceComboBox() {
		super.combo[N_TARGET_DEVICE] = super.createComboBoxOf(DEVICE_LABEL);

		ContentSettingsRegistry.setDeviceProfileRegistryInto(combo[N_TARGET_DEVICE]);
		if (combo[N_TARGET_DEVICE].getItemCount() <= 0)
			return;
		String initValue = contentSettings.getProperty((IResource) super.getElement(), IContentSettings.DEVICE_PROFILE);
		// when either .contentsettings or element doesn't exist
		// when attribute doesn't exists,getProperty returns empty string.
		if (initValue == null)
			initValue = ""; //$NON-NLS-1$
		// set init selectionItem in Combo
		super.setSelectionItem(combo[N_TARGET_DEVICE], initValue);
	}


	protected void createSettingsPageGUI() {
		int type = ((IResource) getElement()).getType();
		switch (type) {
			case IResource.FILE :
				//	composite = createComposite(propertyPage,numCols,numRows);
				createDocumentTypeComboBox();
				createCSSComboBox();
				createDeviceComboBox();
				computeMaxWidthHint();
				WorkbenchHelp.setHelp(propertyPage, IHelpContextIds.WEB_CONTENT_SETTINGS_HELPID);
				break;

			default :
				Logger.log(Logger.WARNING, "HTMLContentSettingsPropertyPage is instantiated by resource except FILE");//$NON-NLS-1$
				break;
		}

	}


	protected void putSelectedPropertyInto(Map properties, String valueInCombo, int index) {

		switch (index) {
			case N_DOCUMENT_TYPE :
				// doc type
				properties.put(IContentSettings.HTML_DOCUMENT_TYPE, valueInCombo);
				break;
			case N_CSS_PROFILE :
				// css
				properties.put(IContentSettings.CSS_PROFILE, valueInCombo);
				break;
			case N_TARGET_DEVICE :
				// device
				properties.put(IContentSettings.DEVICE_PROFILE, valueInCombo);
				break;
			default :
				Logger.log(Logger.ERROR, "Index is out of range in putSelectedPropertyInto() in class HTMLContentSettingsPropertyPage");//$NON-NLS-1$
				break;
		}

	}

	protected void deleteNoneProperty(int index) {
		switch (index) {
			case N_DOCUMENT_TYPE :
				// doc type
				contentSettings.deleteProperty((IResource) super.getElement(), IContentSettings.HTML_DOCUMENT_TYPE);
				break;
			case N_CSS_PROFILE :
				// css
				contentSettings.deleteProperty((IResource) super.getElement(), IContentSettings.CSS_PROFILE);
				break;
			case N_TARGET_DEVICE :
				// device
				contentSettings.deleteProperty((IResource) super.getElement(), IContentSettings.DEVICE_PROFILE);
				break;
			default :
				Logger.log(Logger.ERROR, "Index is out of range in deleteNoneProperty() in class HTMLContentSettingsPropertyPage");//$NON-NLS-1$
				break;
		}
	}

	private void createIDTextField() {
		// public ID & System ID
		Label publicLabel = new Label(super.propertyPage, SWT.NONE);
		GridData data = new GridData(GridData.GRAB_HORIZONTAL | GridData.FILL_HORIZONTAL);
		data.horizontalIndent = 10;
		publicLabel.setLayoutData(data);
		publicLabel.setText(SSEUIPlugin.getResourceString("%UI_Public_ID"));//$NON-NLS-1$
		publicIdText = new Text(super.propertyPage, SWT.BORDER | SWT.READ_ONLY);
		data = new GridData();

		publicIdText.setLayoutData(data);

		Label systemLabel = new Label(super.propertyPage, SWT.NONE);
		data = new GridData(GridData.GRAB_HORIZONTAL | GridData.FILL_HORIZONTAL);
		data.horizontalIndent = 10;
		systemLabel.setLayoutData(data);
		systemLabel.setText(SSEUIPlugin.getResourceString("%UI_System_ID"));//$NON-NLS-1$
		systemIdText = new Text(super.propertyPage, SWT.BORDER | SWT.READ_ONLY);
		data = new GridData();

		systemIdText.setLayoutData(data);
	}


	private void computeMaxWidthHint() {
		// maxLengthString was set when HTMLDocumentTypeEntry was set in class ContentSettingsRegistry.
		String maxLengthString = ContentSettingsRegistry.maxLengthStringInHTMLDocumentTypeRegistry;
		String backup = this.systemIdText.getText();
		this.systemIdText.setText(maxLengthString);
		int maxWidthHint = this.systemIdText.computeSize(SWT.DEFAULT, SWT.DEFAULT).x;
		this.systemIdText.setText(backup);

		if (this.combo[this.N_DOCUMENT_TYPE].getLayoutData() != null)
			((GridData) this.combo[this.N_DOCUMENT_TYPE].getLayoutData()).widthHint = maxWidthHint;
		if (this.publicIdText.getLayoutData() != null)
			((GridData) this.publicIdText.getLayoutData()).widthHint = maxWidthHint;
		if (this.systemIdText.getLayoutData() != null)
			((GridData) this.systemIdText.getLayoutData()).widthHint = maxWidthHint;
		if (this.combo[this.N_CSS_PROFILE].getLayoutData() != null)
			((GridData) this.combo[this.N_CSS_PROFILE].getLayoutData()).widthHint = maxWidthHint;
		if (this.combo[this.N_TARGET_DEVICE].getLayoutData() != null)
			((GridData) this.combo[this.N_TARGET_DEVICE].getLayoutData()).widthHint = maxWidthHint;

	}


	public void widgetDefaultSelected(org.eclipse.swt.events.SelectionEvent e) {
	}

	public void widgetSelected(org.eclipse.swt.events.SelectionEvent event) {
		Widget source = event.widget;

		if (this.combo[this.N_DOCUMENT_TYPE].equals(source)) {
			ComboListOnPropertyPage combo = this.combo[this.N_DOCUMENT_TYPE];
			if (combo.getSelectionIndex() < 0)
				return;
			if (!combo.getSelectedValue().equals("")) {//$NON-NLS-1$
				this.publicIdText.setText(combo.getSelectedValue());
				if (ContentSettingsRegistry.getSystemIdFrom(combo.getSelectedValue()) != null)
					this.systemIdText.setText(ContentSettingsRegistry.getSystemIdFrom(combo.getSelectedValue()));
				else
					this.systemIdText.setText("");//$NON-NLS-1$
			}
			else {
				this.publicIdText.setText("");//$NON-NLS-1$
				this.systemIdText.setText(""); //$NON-NLS-1$
			}

		}
	}

	protected void performDefaults() {
		super.performDefaults();
		this.publicIdText.setText("");//$NON-NLS-1$
		this.systemIdText.setText(""); //$NON-NLS-1$

	}


}