/*******************************************************************************
* Copyright (c) 2004, 2005 Sybase, Inc. 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:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.jsf.facesconfig.ui.pageflow.command;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.gef.commands.Command;
import org.eclipse.jface.window.Window;
import org.eclipse.jst.jsf.common.ui.internal.dialogs.CommonResourceDialog;
import org.eclipse.jst.jsf.facesconfig.ui.EditorPlugin;
import org.eclipse.jst.jsf.facesconfig.ui.pageflow.PageflowMessages;
import org.eclipse.jst.jsf.facesconfig.ui.pageflow.model.Pageflow;
import org.eclipse.jst.jsf.facesconfig.ui.pageflow.model.PageflowNode;
import org.eclipse.jst.jsf.facesconfig.ui.pageflow.model.PageflowPage;
import org.eclipse.jst.jsf.facesconfig.ui.pageflow.util.PageflowValidation;
import org.eclipse.jst.jsf.facesconfig.ui.util.WebrootUtil;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IWorkbenchWindow;
/**
* This is the creation command for pageflow editpart
*
* @author Xiao-guang Zhang
*/
public class CreateNodeCommand extends Command implements IPreExecuteCommand {
private static final String UNNAMED_NODE = "unnamed"; //$NON-NLS-1$
/** new pageflow node */
private PageflowNode child;
/** size of pageflow node figure */
private Rectangle rect;
/** parent pageflow */
private Pageflow parent;
/** index of pageflow nodes */
// private int _index = -1;
public CreateNodeCommand() {
// Pageflow.Commands.CreateNodeCommand.Label = Create new node
super(PageflowMessages.Pageflow_Commands_CreateNodeCommand_Label);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.gef.commands.Command#canExecute()
*/
public boolean canExecute() {
return child != null && parent != null;
}
/*
* (non-Javadoc)
*
* @see Command#execute()
*/
public void execute() {
if (rect != null) {
child.setX(rect.x);
child.setY(rect.y);
if (!rect.isEmpty()) {
child.setHeight(rect.getSize().height);
child.setWidth(rect.getSize().width);
}
}
if (child.getName() == UNNAMED_NODE) {
child.setName(parent.getDefaultNodeName(child.getClass()));
}
parent.getNodes().add(child);
}
/*
* (non-Javadoc)
*
* @see Command#redo()
*/
public void redo() {
if (rect != null) {
child.setX(rect.x);
child.setY(rect.y);
if (!rect.isEmpty()) {
child.setHeight(rect.getSize().height);
child.setWidth(rect.getSize().width);
}
}
parent.getNodes().add(child);
}
/*
* (non-Javadoc)
*
* @see Command#undo()
*/
public void undo() {
parent.getNodes().remove(child);
}
/**
* select a jsp page in current project.
*
* @return
*/
private boolean selectJSPPage() {
Shell shell = null;
IWorkbenchWindow workbenchWindow = EditorPlugin
.getActiveWorkbenchWindow();
if (workbenchWindow.getShell() != null) {
shell = workbenchWindow.getShell();
} else {
shell = new Shell();
}
IProject project = WebrootUtil.getProject(getParent());
CommonResourceDialog dialog = new CommonResourceDialog(shell, project,
SWT.NONE);
dialog
.setTitle(PageflowMessages.Pageflow_Commands_CreateNodeCommand_SelectJSPDialog_Title);
// no suffix filter
dialog.setSuffixs(null);
dialog
.setResourceDescription(PageflowMessages.Pageflow_Commands_CreateNodeCommand_SelectJSPDialog_Description);
if (dialog.open() == Window.OK) {
Object[] result = dialog.getResult();
if (result != null) {
IFile jspFile = (IFile) result[0];
if (jspFile != null) {
// get the project path for the new created file, i.e.,
// /project/webroot/*.jsp
String jsfSelection = WebrootUtil.getWebPath(jspFile
.getFullPath());
if (jsfSelection != null && jsfSelection.length() > 0) {
if (PageflowValidation.getInstance().isExistedPage(
this.parent, jsfSelection)) {
// Pageflow.PageflowEditor.Alert.DNDResourceTitle =
// Pageflow Creation Error
// Pageflow.PageflowEditor.Alert.ExistingPage = The
// web page {0} is already existed in current
// PageFlow.
EditorPlugin
.getAlerts()
.error(
"Pageflow.PageflowEditor.Alert.DNDResourceTitle", //$NON-NLS-1$
"Pageflow.PageflowEditor.Alert.ExistingPage", //$NON-NLS-1$
jsfSelection);
return false;
}
((PageflowPage) (child)).setPath(jsfSelection);
((PageflowPage) (child)).setName(WebrootUtil
.getPageNameFromWebPath(jsfSelection));
}
return true;
}
}
}
return false;
}
/**
* call the JSF wizard to create a new jsf page.
* @return the parent
*
*/
public Pageflow getParent() {
return parent;
}
/**
* set the child node
*
* @param subpart -
* new child pageflow node
*/
public void setChild(PageflowNode subpart) {
child = subpart;
}
/**
* set the location of the new pageflow node
*
* @param r -
* location of the new pageflow node
*/
public void setLocation(Rectangle r) {
rect = r;
}
/**
* set the parent pageflow
*
* @param newParent -
* the new parent pageflow
*/
public void setParent(Pageflow newParent) {
parent = newParent;
}
/*
* (non-Javadoc)
*
* @see com.sybase.stf.jmt.editors.pageflow.commands.IPreExecuteCommand#preExecute()
*/
public boolean preExecute() {
// note that the model adds the ports to the node in this call
// pop up the new the wizard to create the new jsf file
if (child instanceof PageflowPage) {
// if the new page's file path is not empty, i.e., drag a file from
// resource navigator view
if (null != ((PageflowPage) child).getPath()) {
if (PageflowValidation.getInstance().isExistedPage(parent,
(PageflowPage) child)) {
// Pageflow.PageflowEditor.Alert.DNDResourceTitle = Pageflow
// Creation Error
// Pageflow.PageflowEditor.Alert.ExistingPage = The web page
// {0} is already existed in current PageFlow.
EditorPlugin.getAlerts().error(
"Pageflow.PageflowEditor.Alert.DNDResourceTitle", //$NON-NLS-1$
"Pageflow.PageflowEditor.Alert.ExistingPage", //$NON-NLS-1$
((PageflowPage) child).getPath());
return false;
}
} else
// create a new jsf page from scratch
{
// return createNewJSFPage();
return selectJSPPage();
}
}
return true;
}
}