/*******************************************************************************
 * Copyright (c) 2009 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
 *     Zend Technologies
 *******************************************************************************/
package org.eclipse.php.internal.ui.preferences;

import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.php.internal.ui.IPHPHelpContextIds;
import org.eclipse.php.internal.ui.PHPUIMessages;
import org.eclipse.php.internal.ui.PHPUiPlugin;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.*;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.dialogs.PreferencesUtil;

public class PHPEditorPreferencePage extends AbstractPreferencePage {

	private Button useSmartHomeEndCB;
	private Button useSmartSubWordNavigation;

	@Override
	protected Control createContents(Composite parent) {
		// TODO Auto-generated method stub
		createHeader(parent);
		createMainComposite(parent);
		initValues();
		PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, IPHPHelpContextIds.EDITOR_PREFERENCES);
		return super.createContents(parent);
	}

	private void createMainComposite(Composite parent) {
		Composite firstComposite = new Composite(parent, SWT.FILL);
		firstComposite.setLayout(new GridLayout(1, false));
		GridData gd = new GridData(GridData.FILL_BOTH);
		firstComposite.setLayoutData(gd);

		gd = new GridData(GridData.FILL_HORIZONTAL);
		useSmartHomeEndCB = new Button(firstComposite, SWT.CHECK | SWT.LEFT);
		useSmartHomeEndCB.setLayoutData(gd);
		useSmartHomeEndCB.setText(PHPUIMessages.PHPEditorPreferencePage_smartCaretPositioning);

		gd = new GridData(GridData.FILL_HORIZONTAL);
		useSmartSubWordNavigation = new Button(firstComposite, SWT.CHECK | SWT.LEFT);
		useSmartSubWordNavigation.setLayoutData(gd);
		useSmartSubWordNavigation.setText(PHPUIMessages.PHPEditorPreferencePage_0);
	}

	@Override
	protected void performDefaults() {
		useSmartHomeEndCB.setSelection(true);
		useSmartSubWordNavigation.setSelection(true);
		super.performDefaults();
	}

	@Override
	public boolean performOk() {
		IPreferenceStore store = PHPUiPlugin.getDefault().getPreferenceStore();
		store.setValue(PreferenceConstants.USE_SMART_HOME_END, useSmartHomeEndCB.getSelection());
		store.setValue(PreferenceConstants.USE_SUB_WORD_NAVIGATION, useSmartSubWordNavigation.getSelection());
		return super.performOk();
	}

	private void createHeader(Composite contents) {
		final Shell shell = contents.getShell();
		String text = PHPUIMessages.PHPEditorPreferencePage_prefEditorMessage;
		Link link = new Link(contents, SWT.NONE);
		link.setText(text);
		link.addSelectionListener(new SelectionAdapter() {
			@Override
			public void widgetSelected(SelectionEvent e) {
				PreferencesUtil.createPreferenceDialogOn(shell, "org.eclipse.ui.preferencePages.GeneralTextEditor", //$NON-NLS-1$
						null, null);
			}
		});
		// TODO replace by link-specific tooltips when
		// bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=88866 gets fixed
		link.setToolTipText(PHPUIMessages.PHPEditorPreferencePage_prefEditorTooltip);

		GridData gridData = new GridData(SWT.FILL, SWT.BEGINNING, true, false);
		gridData.widthHint = 150; // only expand further if anyone else requires
									// it
		link.setLayoutData(gridData);
	}

	protected void initValues() {
		IPreferenceStore store = PHPUiPlugin.getDefault().getPreferenceStore();
		useSmartHomeEndCB.setSelection(store.getBoolean(PreferenceConstants.USE_SMART_HOME_END));
		useSmartSubWordNavigation.setSelection(store.getBoolean(PreferenceConstants.USE_SUB_WORD_NAVIGATION));
		super.initializeValues();
	}
}