/**********************************************************************
 Copyright (c) 2000, 2002 IBM Corp. 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:
 IBM Corporation - Initial implementation
 Klaus Hartlage - www.eclipseproject.de
 **********************************************************************/
package net.sourceforge.phpeclipse.actions;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.text.MessageFormat;
import java.util.Iterator;

import net.sourceforge.phpeclipse.PHPeclipsePlugin;
import net.sourceforge.phpeclipse.ui.editor.ShowExternalPreviewAction;
import net.sourceforge.phpeclipse.views.PHPConsole;
import net.sourceforge.phpeclipse.webbrowser.views.BrowserView;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IActionDelegate;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPart;
//import org.eclipse.update.internal.ui.UpdatePerspective;
//import org.eclipse.update.internal.ui.views.IEmbeddedWebBrowser;
public class PHPEclipseShowAction implements IObjectActionDelegate {
  private IWorkbenchPart workbenchPart;
  /**
   * Constructor for Action1.
   */
  public PHPEclipseShowAction() {
    super();
  }
  /**
   * @see IObjectActionDelegate#setActivePart(IAction, IWorkbenchPart)
   */
  public void setActivePart(IAction action, IWorkbenchPart targetPart) {
    workbenchPart = targetPart;
  }
  public void run(IAction action) {
    ISelectionProvider selectionProvider = null;
    selectionProvider = workbenchPart.getSite().getSelectionProvider();
    StructuredSelection selection = null;
    selection = (StructuredSelection) selectionProvider.getSelection();
    PHPConsole console = PHPConsole.getInstance();
    IPreferenceStore store = PHPeclipsePlugin.getDefault().getPreferenceStore();
    Shell shell = null;
    Iterator iterator = null;
    iterator = selection.iterator();
    while (iterator.hasNext()) {
      //  obj => selected object in the view
      Object obj = iterator.next();
      // is it a resource
      if (obj instanceof IResource) {
        IResource resource = (IResource) obj;
        // check if it's a file resource
        switch (resource.getType()) {
          case IResource.FILE :
            // single file:
            IFile file = (IFile) resource;
            String localhostURL;
            if ((localhostURL = ShowExternalPreviewAction.getLocalhostURL(store, (IFile) resource)) == null) {
              MessageDialog.openInformation(shell,
                  "Couldn't create localhost URL",
                  "Please configure your localhost and documentRoot");
              return;
            }
            try {
              if (store.getBoolean(PHPeclipsePlugin.USE_EXTERNAL_BROWSER_PREF)) {
                String[] arguments = {localhostURL};
                MessageFormat form = new MessageFormat(store
                    .getString(PHPeclipsePlugin.EXTERNAL_BROWSER_PREF));
                Runtime runtime = Runtime.getRuntime();
                String command = form.format(arguments);
                console.write("External Browser command: " + command + "\n");
                runtime.exec(command);
                //			runtime.exec(store.getString(PHPeclipsePlugin.EXTERNAL_BROWSER_PREF)
                // + " " + fileName);
                //								runtime.exec("command.com /c start iexplore " + fileName);
              } else {
                //    MessageDialog.openInformation(shell, "localhostURL",
                // "localhostURL: " + localhostURL);
                //  this doesn't work under win98 ?
                //     Program.launch(localhostURL);
                console.write("Internal Browser URL: " + localhostURL + "\n");
                open(new URL(localhostURL), shell, localhostURL);
              }
            } catch (MalformedURLException e) {
              MessageDialog.openInformation(shell, "MalformedURLException: ", e
                  .toString());
            } catch (IOException e) {
              MessageDialog.openInformation(shell, "IOException",
                  "Cannot show: " + localhostURL);
            }
        }
      }
    }
  }
  /**
   * @see IActionDelegate#selectionChanged(IAction, ISelection)
   */
  public void selectionChanged(IAction action, ISelection selection) {
  }
//  public static String getLocalhostURL(IPreferenceStore store, IFile file) {
//    if (store == null) {
//      store = PHPeclipsePlugin.getDefault().getPreferenceStore();
//    }
//    // IPath path = file.getFullPath();
//    String localhostURL = file.getLocation().toString();
//    String lowerCaseFileName = localhostURL.toLowerCase();
//  //  String documentRoot = store.getString(PHPeclipsePlugin.DOCUMENTROOT_PREF);
//    String documentRoot = Util.getMiscProjectsPreferenceValue(
//		file.getProject(), IPreferenceConstants.PHP_DOCUMENTROOT_PREF);
//    
//    documentRoot = documentRoot.replace('\\', '/');
//    documentRoot = documentRoot.toLowerCase();
//    
//    if (lowerCaseFileName.startsWith(documentRoot)) {
//      localhostURL = localhostURL.substring(documentRoot.length());
//    } else {
//      return null;  
//    }
////    return store.getString(PHPeclipsePlugin.LOCALHOST_PREF) + localhostURL;
//    return Util.getMiscProjectsPreferenceValue(file.getProject(), IPreferenceConstants.PHP_LOCALHOST_PREF) + localhostURL;
//  }
  
  public static void open(final URL url, final Shell shell,
      final String dialogTitle) {
    IWorkbenchPage page = PHPeclipsePlugin.getActivePage();
    try {
      IViewPart part = page.findView(BrowserView.ID_BROWSER);
      if (part == null) {
        part = page.showView(BrowserView.ID_BROWSER);
      } else {
        page.bringToTop(part);
      }
      ((BrowserView) part).setUrl(url.toExternalForm());
    } catch (Exception e) {
    }
  }
}