/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

package com.nokia.carbide.internal.discovery.ui.editor;

import java.util.HashMap;

import java.util.Map;

import java.util.Map.Entry;

import org.eclipse.jface.action.IAction;

import org.eclipse.jface.layout.RowDataFactory;

import org.eclipse.jface.layout.RowLayoutFactory;

import org.eclipse.jface.resource.JFaceResources;

import org.eclipse.swt.SWT;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Label;

import org.eclipse.ui.forms.events.HyperlinkEvent;

import org.eclipse.ui.forms.events.IHyperlinkListener;

import org.eclipse.ui.forms.widgets.Hyperlink;

import com.nokia.carbide.internal.discovery.ui.extension.IActionBar;

class TaskBar extends RoundedCornerComposite {

	private final class ActionListener implements IHyperlinkListener {

		@Override

		public void linkActivated(HyperlinkEvent e) {

			Hyperlink link = (Hyperlink) e.getSource();

			runAction(link);

		}

		@Override

		public void linkEntered(HyperlinkEvent e) {

			Hyperlink link = (Hyperlink) e.getSource();

			link.setUnderlined(true);

		}

		@Override

		public void linkExited(HyperlinkEvent e) {

			Hyperlink link = (Hyperlink) e.getSource();

			link.setUnderlined(false);

		}

	}

	private Map<Hyperlink, IAction> linkToActionMap;

	private ActionListener listener;

	public TaskBar(Composite parent, Composite backgroundParent, IActionBar actionBar) {

		super(parent, backgroundParent, 

				parent.getDisplay().getSystemColor(SWT.COLOR_BLACK),

				parent.getDisplay().getSystemColor(SWT.COLOR_WHITE));

		createTitle(actionBar);

		createActions(actionBar);

		RowLayoutFactory.swtDefaults().type(SWT.VERTICAL).margins(5, 5).extendedMargins(7, 7, 7, 7).fill(true).wrap(false).applyTo(this);

	}

	private void createTitle(IActionBar actionBar) {

		Label l = new Label(this, SWT.LEFT);

		l.setFont(JFaceResources.getBannerFont());

		l.setBackground(l.getDisplay().getSystemColor(SWT.COLOR_WHITE));

		l.setText(actionBar.getTitle());

		RowDataFactory.swtDefaults().applyTo(l);

		l = new Label(this, SWT.HORIZONTAL | SWT.SEPARATOR);

		RowDataFactory.swtDefaults().applyTo(l);

	}

	private void createActions(IActionBar actionBar) {

		listener = new ActionListener();

		linkToActionMap = new HashMap<Hyperlink, IAction>();

		for (IAction action : actionBar.getActions()) {

			Hyperlink link = new Hyperlink(this, SWT.NONE);

			link.setText(action.getText());

			String toolTipText = action.getToolTipText();

			if (toolTipText != null)

				link.setToolTipText(toolTipText);

			link.setForeground(link.getDisplay().getSystemColor(SWT.COLOR_DARK_BLUE));

			link.setBackground(link.getDisplay().getSystemColor(SWT.COLOR_WHITE));

			String actionId = action.getId();

			String[] highlightedActionIds = actionBar.getHighlightedActionIds();

			if (actionId != null && highlightedActionIds != null) {

				for (String highlightedId : highlightedActionIds) {

					if (highlightedId.equals(actionId)) {

						link.setFont(JFaceResources.getFontRegistry().getBold(JFaceResources.DIALOG_FONT));

						break;

					}

				}

			}

			linkToActionMap.put(link, action);

			link.addHyperlinkListener(listener);

		}

	}

	public void runAction(Hyperlink link) {

		IAction action = linkToActionMap.get(link);

		action.run();

	}

	public void updateActionUI(String actionId) {

		for (Entry<Hyperlink, IAction> entry : linkToActionMap.entrySet()) {

			IAction action = entry.getValue();

			if (actionId.equals(action.getId())) {

				Hyperlink link = entry.getKey();

				if (link != null && !link.isDisposed())

					link.setEnabled(entry.getValue().isEnabled());

			}

		}

	}

	public void updateAllActionsUI() {

		for (Entry<Hyperlink, IAction> entry : linkToActionMap.entrySet()) {

			Hyperlink link = entry.getKey();

			if (link != null && !link.isDisposed())

				link.setEnabled(entry.getValue().isEnabled());

		}

	}

}