/*
 * Copyright (c) 2003-2004 Alex Fitzpatrick and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     Alex Fitzpatrick - initial implementation
 * 
 * $Id: JSClassesView.java,v 1.1 2004-09-02 18:23:49 jsurfer Exp $
 */

package net.sourceforge.phpeclipse.js.ui.views;

import net.sourceforge.phpeclipse.js.ui.model.JSNameSorter;

import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IMenuListener;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.IWorkbenchActionConstants;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.ide.IDE;
import org.eclipse.ui.model.WorkbenchLabelProvider;
import org.eclipse.ui.part.DrillDownAdapter;
import org.eclipse.ui.part.ViewPart;

/**
 * A view of all JavaScript syntactic elements in all projects.
 */
public class JSClassesView extends ViewPart {

	private TreeViewer viewer;
	private DrillDownAdapter drillDownAdapter;
	private Action action1;
	private Action action2;
	private Action doubleClickAction;

	/**
	 * The constructor.
	 */
	public JSClassesView() {
	}

	/* (non-Javadoc)
	 * @see org.eclipse.ui.IWorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
	 */
	public void createPartControl(Composite parent) {
		viewer =
			new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
		drillDownAdapter = new DrillDownAdapter(viewer);
		viewer.setContentProvider(new JSClassesViewContentProvider());
		viewer.setLabelProvider(new WorkbenchLabelProvider());
		viewer.setSorter(new JSNameSorter());
		viewer.setInput(ResourcesPlugin.getWorkspace());
		makeActions();
		hookContextMenu();
		hookDoubleClickAction();
		contributeToActionBars();
	}

	/**
	 * 
	 */
	private void hookContextMenu() {
		MenuManager menuMgr = new MenuManager("#PopupMenu");
		menuMgr.setRemoveAllWhenShown(true);
		menuMgr.addMenuListener(new IMenuListener() {
			public void menuAboutToShow(IMenuManager manager) {
				JSClassesView.this.fillContextMenu(manager);
			}
		});
		Menu menu = menuMgr.createContextMenu(viewer.getControl());
		viewer.getControl().setMenu(menu);
		getSite().registerContextMenu(menuMgr, viewer);
	}

	/**
	 * 
	 */
	private void contributeToActionBars() {
		IActionBars bars = getViewSite().getActionBars();
		fillLocalPullDown(bars.getMenuManager());
		fillLocalToolBar(bars.getToolBarManager());
	}

	private void fillLocalPullDown(IMenuManager manager) {
		manager.add(action1);
		manager.add(new Separator());
		manager.add(action2);
	}

	private void fillContextMenu(IMenuManager manager) {
		manager.add(action1);
		manager.add(action2);
		manager.add(new Separator());
		drillDownAdapter.addNavigationActions(manager);
		// Other plug-ins can contribute there actions here
		manager.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS));
	}

	private void fillLocalToolBar(IToolBarManager manager) {
		manager.add(action1);
		manager.add(action2);
		manager.add(new Separator());
		drillDownAdapter.addNavigationActions(manager);
	}

	private void makeActions() {
		action1 = new Action() {
			public void run() {
				showMessage("Action 1 executed");
			}
		};
		action1.setText("Action 1");
		action1.setToolTipText("Action 1 tooltip");
		action1.setImageDescriptor(
			PlatformUI.getWorkbench().getSharedImages().getImageDescriptor(
				ISharedImages.IMG_OBJS_INFO_TSK));

		action2 = new Action() {
			public void run() {
				showMessage("Action 2 executed");
			}
		};
		action2.setText("Action 2");
		action2.setToolTipText("Action 2 tooltip");
		action2.setImageDescriptor(
			PlatformUI.getWorkbench().getSharedImages().getImageDescriptor(
				IDE.SharedImages.IMG_OBJS_TASK_TSK));
		doubleClickAction = new Action() {
			public void run() {
				ISelection selection = viewer.getSelection();
				Object obj =
					((IStructuredSelection) selection).getFirstElement();
				showMessage("Double-click detected on " + obj.toString());
			}
		};
	}

	private void hookDoubleClickAction() {
		viewer.addDoubleClickListener(new IDoubleClickListener() {
			public void doubleClick(DoubleClickEvent event) {
				doubleClickAction.run();
			}
		});
	}
	private void showMessage(String message) {
		MessageDialog.openInformation(
			viewer.getControl().getShell(),
			"Classes",
			message);
	}

	/* (non-Javadoc)
	 * @see org.eclipse.ui.IWorkbenchPart#setFocus()
	 */
	public void setFocus() {
		viewer.getControl().setFocus();
	}

}