net.sf.wickedshell.jdt.action.ChangeToFolderInShellAction.java Source code

Introduction

Here is the source code for net.sf.wickedshell.jdt.action.ChangeToFolderInShellAction.java

Source

/*
 * ChangeToFolderInShellAction.java
 * 
 * Copyright 2005-2006 Stefan Reichert.
 * All Rights Reserved.
 * 
 * This software is the proprietary information of Stefan Reichert.
 * Use is subject to license terms.
 * 
 */
package net.sf.wickedshell.jdt.action;

import java.io.File;

import net.sf.wickedshell.ShellID;
import net.sf.wickedshell.facade.descriptor.IShellDescriptor;
import net.sf.wickedshell.facade.descriptor.command.ICommandProvider;
import net.sf.wickedshell.ui.shell.ShellView;
import net.sf.wickedshell.util.MessageDialogHandler;
import net.sf.wickedshell.util.ShellLogger;
import net.sf.wickedshell.util.ShellViewUtil;

import org.eclipse.core.resources.IResource;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.PartInitException;

/**
 * @author Stefan Reichert
 * @since 07.04.2006
 */
public class ChangeToFolderInShellAction implements IObjectActionDelegate {

    /** The currently selected <code>IResource</code>. */
    private IResource currentResource;

    /** The <code>IWorkbenchPart</code>. */
    private IWorkbenchPart targetPart;

    /** This actions <code>ShellLogger</code>. */
    private static final ShellLogger shellLogger = new ShellLogger(ChangeToFolderInShellAction.class);

    /**
     * @see org.eclipse.ui.IObjectActionDelegate#setActivePart(org.eclipse.jface.action.IAction,
     *      org.eclipse.ui.IWorkbenchPart)
     */
    public void setActivePart(IAction action, IWorkbenchPart targetPart) {
        this.targetPart = targetPart;
    }

    /**
     * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
     */
    public void run(IAction action) {
        ShellView shellView = null;
        if (!ShellViewUtil.isTargetAvailable()) {
            // No ShellView available
            if (MessageDialogHandler.openConfirmationMessage(targetPart.getSite().getShell(),
                    "There is no Shell available, do you want to open a new one?")) {
                try {
                    shellView = (ShellView) targetPart.getSite().getPage().showView(ShellID.SHELL_VIEW_ID);
                } catch (PartInitException exception) {
                    shellLogger.error(exception.getMessage(), exception);
                }
            }
        } else {
            shellView = ShellViewUtil.selectTargetFromAvailable("Change To Folder", true);
        }
        if (shellView != null) {
            IShellDescriptor shellDescriptor = shellView.getShellViewer().getShellFacade().getShellDescriptor();
            ICommandProvider commandProvider = shellDescriptor.getCommandProvider();
            File file;
            if (currentResource.getLocation().toFile().isDirectory()) {
                file = new File(currentResource.getLocation().toOSString());
            } else {
                file = new File(currentResource.getLocation().toOSString()).getParentFile();
            }
            String changeDirectoryCommand = commandProvider.getChangeDirectoryCommand(shellDescriptor, file);
            shellView.getShellViewer().getShellFacade().executeCommand(changeDirectoryCommand);
            shellView.setFocus();
        } else {
            MessageDialogHandler.openInformationMessage(targetPart.getSite().getShell(),
                    "No Shell was selected. Please choose one to change to the selected folder.");
        }
    }

    /**
     * @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction,
     *      org.eclipse.jface.viewers.ISelection)
     */
    @SuppressWarnings("null")
    public void selectionChanged(IAction action, ISelection selection) {
        IStructuredSelection structuredSelection = (IStructuredSelection) selection;
        if (!structuredSelection.isEmpty()) {
            Object selectedElement = structuredSelection.getFirstElement();
            if (selectedElement instanceof IJavaElement) {
                IJavaElement currentJavaElement = (IJavaElement) selectedElement;
                if (currentJavaElement != null) {
                    currentResource = currentJavaElement.getResource();
                } else {
                    currentResource = null;
                }
                action.setEnabled(currentResource != null && currentResource.exists());
            } else {
                action.setEnabled(false);
            }
        }
    }
}