/*******************************************************************************
 * Copyright (c) 2004, 2016 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.ui.internal.intro.impl.model;

import java.net.MalformedURLException;
import java.net.URL;

import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.ui.internal.intro.impl.util.ImageUtil;
import org.eclipse.ui.intro.config.IntroElement;

/**
 * An Intro Config component that captures launch bar shortcut information.
 *
 * @since 3.1
 */
public class IntroLaunchBarShortcut extends AbstractIntroElement {

    protected static final String TAG_SHORTCUT = "shortcut"; //$NON-NLS-1$

    private static final String ATT_TOOLTIP = "tooltip"; //$NON-NLS-1$
    private static final String ATT_ICON = "icon"; //$NON-NLS-1$
    private static final String ATT_URL = "url"; //$NON-NLS-1$

    private IntroElement ielement;

    IntroLaunchBarShortcut(IConfigurationElement element, IntroElement ielement) {
    	super(element);
    	this.ielement = ielement;
    }

    IntroLaunchBarShortcut(IConfigurationElement element) {
        super(element);
    }


    @Override
	public int getType() {
        return AbstractIntroElement.LAUNCH_BAR_SHORTCUT;
    }

    private String getAttribute(String name) {
    	if (ielement!=null)
    		return ielement.getAttribute(name);
    	return getCfgElement().getAttribute(name);
    }

    /**
     * Returns the URL of this shortcut.
     *
     * @return
     */
    public String getURL() {
    	return getAttribute(ATT_URL);
    }

    /**
     * Returns the tooltip of this shortcut.
     *
     * @return
     */
    public String getToolTip() {
        return getAttribute(ATT_TOOLTIP);
    }

    /**
     * Returns the relative icon path of this shortcut.
     *
     * @return
     */
    private String getIcon() {
        return getAttribute(ATT_ICON);
    }

    /**
     * Returns the icon image of this shortcut, or <code>null</code> if not
     * found.
     *
     * @return
     */
    public ImageDescriptor getImageDescriptor() {
    	String icon = getIcon();
    	if (icon!=null) {
    		try {
    			URL imageUrl = new URL(icon);
                ImageDescriptor desc = ImageDescriptor.createFromURL(imageUrl);
                return desc;
    		}
    		catch (MalformedURLException e) {
    			// not a full url
    		}
    	}
        return ImageUtil.createImageDescriptor(getBundle(), getIcon());
    }
}