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/*******************************************************************************
* Copyright (c) 2006 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.common.ui.internal.dialogfield;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Path;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IJavaModel;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.ui.JavaElementComparator;
import org.eclipse.jdt.ui.JavaElementLabelProvider;
import org.eclipse.jdt.ui.StandardJavaElementContentProvider;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.jface.window.Window;
import org.eclipse.jst.jsf.common.ui.JSFUICommonPlugin;
import org.eclipse.jst.jsf.common.ui.internal.logging.Logger;
import org.eclipse.ui.dialogs.ElementTreeSelectionDialog;
/**
* This class provides a source folder selection DialogFiled. There are two
* conditions: 1. If you set the IProject instance, the source folder selection
* will only be limited in the specified project 2. If you set null, the source
* folder selection is allowed in all workspaces
*
*
* @author mengbo
* @version 1.5
*/
public class SourceFolderButtonDialogField extends StringButtonDialogField {
/** Create the logger for this class */
private static Logger _log = JSFUICommonPlugin
.getLogger(SourceFolderButtonDialogField.class);
/**
* package fragment root corresponding to the input type (can be null)
*/
private IPackageFragmentRoot _fCurrRoot;
private IProject _project;
/**
* @param project
*/
public SourceFolderButtonDialogField(IProject project) {
super(null);
_project = project;
setLabelText(DialogFieldResources.getInstance().getString(
"SourceFolderButtonDialogField.container.label")); //$NON-NLS-1$
setButtonLabel(DialogFieldResources.getInstance().getString(
"SourceFolderButtonDialogField.container.button")); //$NON-NLS-1$
setStringButtonAdapter(new IStringButtonAdapter() {
public void changeControlPressed(DialogField field) {
containerChangeControlPressed(field);
}
});
}
/**
* @return Returns the project.
*/
public IProject getProject() {
return _project;
}
/**
* @param project
* The project to set.
*/
public void setProject(IProject project) {
this._project = project;
}
/**
* @param field
*/
protected void containerChangeControlPressed(DialogField field) {
// take the current jproject as init element of the dialog
IPackageFragmentRoot root = getPackageFragmentRoot();
root = chooseSourceContainer(root);
if (root != null) {
setPackageFragmentRoot(root, true);
}
}
/**
* Sets the current source folder (model and text field) to the given
* package fragment root.
*
* @param root
* The new root.
* @param canBeModified
* if <code>false</code> the source folder field can not be
* changed by the user. If <code>true</code> the field is
* editable
*/
public void setPackageFragmentRoot(IPackageFragmentRoot root,
boolean canBeModified) {
_fCurrRoot = root;
String str = (root == null) ? "" : root.getPath().makeRelative().toString(); //$NON-NLS-1$
setText(str);
setEnabled(canBeModified);
}
/**
* Returns the <code>IPackageFragmentRoot</code> that corresponds to the
* current value of the source folder field.
*
* @return the IPackageFragmentRoot or <code>null</code> if the current
* source folder value is not a valid package fragment root
*
*/
public IPackageFragmentRoot getPackageFragmentRoot() {
return _fCurrRoot;
}
/**
* Returns the current text of source folder text field.
*
* @return the text of the source folder text field
*/
public String getPackageFragmentRootText() {
return getText();
}
/**
* choose source container dialog
*
* @param initElement
* @return
*/
private IPackageFragmentRoot chooseSourceContainer(IJavaElement initElement) {
Class[] acceptedClasses = new Class[] { IPackageFragmentRoot.class,
IJavaProject.class, };
TypedElementSelectionValidator validator = new TypedElementSelectionValidator(
acceptedClasses, false) {
// TODO: never used
// public boolean isSelectedValid(Object element) {
// try {
// if (element instanceof IJavaProject) {
// IJavaProject jproject = (IJavaProject) element;
// IPath path = jproject.getProject().getFullPath();
// return (jproject.findPackageFragmentRoot(path) != null);
// } else if (element instanceof IPackageFragmentRoot) {
// return (((IPackageFragmentRoot) element).getKind() == IPackageFragmentRoot.K_SOURCE);
// }
// return true;
// } catch (JavaModelException e) {
// _log.error("JavaModelException"); // just log, no ui in
// // validation
// }
// return false;
// }
};
acceptedClasses = new Class[] { IJavaModel.class,
IPackageFragmentRoot.class, IJavaProject.class, };
ViewerFilter filter = new TypedViewerFilter(acceptedClasses) {
public boolean select(Viewer viewer, Object parent, Object element) {
if (element instanceof IPackageFragmentRoot) {
try {
return (((IPackageFragmentRoot) element).getKind() == IPackageFragmentRoot.K_SOURCE);
} catch (JavaModelException e) {
_log.error(e); // just log, no ui
// in validation
return false;
}
}
return super.select(viewer, parent, element);
}
};
StandardJavaElementContentProvider provider = new StandardJavaElementContentProvider();
ILabelProvider labelProvider = new JavaElementLabelProvider(
JavaElementLabelProvider.SHOW_DEFAULT);
ElementTreeSelectionDialog dialog = new ElementTreeSelectionDialog(
getShell(), labelProvider, provider);
dialog.setValidator(validator);
dialog.setComparator(new JavaElementComparator());
// HibernateWizardPage.ChooseSourceContainerDialog.Title = Folder
// Selection
dialog
.setTitle(DialogFieldResources
.getInstance()
.getString(
"SourceFolderButtonDialogField.ChooseSourceContainerDialog.Title")); //$NON-NLS-1$
// HibernateWizardPage.ChooseSourceContainerDialog.Description = Choose
// a folder:
dialog
.setMessage(DialogFieldResources
.getInstance()
.getString(
"SourceFolderButtonDialogField.ChooseSourceContainerDialog.Description")); //$NON-NLS-1$
dialog.addFilter(filter);
if (_project != null) {
dialog.setInput(JavaCore.create(_project));
} else {
dialog.setInput(JavaCore.create(ResourcesPlugin.getWorkspace()
.getRoot()));
}
dialog.setInitialSelection(initElement);
if (dialog.open() == Window.OK) {
Object element = dialog.getFirstResult();
if (element instanceof IJavaProject) {
IJavaProject jproject = (IJavaProject) element;
return jproject.getPackageFragmentRoot(jproject.getProject());
} else if (element instanceof IPackageFragmentRoot) {
return (IPackageFragmentRoot) element;
}
return null;
}
return null;
}
/**
* This method updates the model and returns an error status. The underlying
* model is only valid if the returned status is OK.
*
* @return the model's error status
*/
public IStatus getChangedStatus() {
StatusInfo status = new StatusInfo();
_fCurrRoot = null;
String str = getPackageFragmentRootText();
if (str.length() == 0) {
// SourceFolderButtonDialogField.error.EnterContainerName = Folder
// name is empty.
status.setError(DialogFieldResources.getInstance().getString(
"SourceFolderButtonDialogField.error.EnterContainerName")); //$NON-NLS-1$
return status;
}
IPath path = new Path(str);
IResource res = ResourcesPlugin.getWorkspace().getRoot().findMember(
path);
if (res != null) {
int resType = res.getType();
if (resType == IResource.PROJECT || resType == IResource.FOLDER) {
IProject proj = res.getProject();
if (!proj.isOpen()) {
status
.setError(DialogFieldResources
.getInstance()
.getString(
"SourceFolderButtonDialogField.error.ProjectClosed", proj.getFullPath().toString())); //$NON-NLS-1$
return status;
}
if (_project != null && proj != _project) {
// HibernateWizardPage.error.NotSameProject = The project
// should be \''{0}\''.
status
.setError(DialogFieldResources
.getInstance()
.getString(
"SourceFolderButtonDialogField.error.NotSameProject", _project.getName())); //$NON-NLS-1$
return status;
}
IJavaProject jproject = JavaCore.create(proj);
_fCurrRoot = jproject.getPackageFragmentRoot(res);
if (res.exists()) {
try {
if (!proj.hasNature(JavaCore.NATURE_ID)) {
if (resType == IResource.PROJECT) {
status
.setError(DialogFieldResources
.getInstance()
.getString(
"SourceFolderButtonDialogField.warning.NotAJavaProject", proj.getName())); //$NON-NLS-1$
} else {
status
.setWarning(DialogFieldResources
.getInstance()
.getString(
"SourceFolderButtonDialogField.warning.NotInAJavaProject", proj.getName())); //$NON-NLS-1$
}
return status;
}
} catch (CoreException e) {
status
.setWarning(DialogFieldResources
.getInstance()
.getString(
"SourceFolderButtonDialogField.warning.NotAJavaProject", proj.getName())); //$NON-NLS-1$
}
if (!jproject.isOnClasspath(_fCurrRoot)) {
status
.setWarning(DialogFieldResources
.getInstance()
.getString(
"SourceFolderButtonDialogField.warning.NotOnClassPath", str)); //$NON-NLS-1$
}
if (_fCurrRoot.isArchive()) {
status
.setError(DialogFieldResources
.getInstance()
.getString(
"SourceFolderButtonDialogField.error.ContainerIsBinary", str)); //$NON-NLS-1$
return status;
}
}
return status;
}
status.setError(DialogFieldResources.getInstance().getString(
"SourceFolderButtonDialogField.error.NotAFolder", str)); //$NON-NLS-1$
return status;
}
status
.setError(DialogFieldResources
.getInstance()
.getString(
"SourceFolderButtonDialogField.error.ContainerDoesNotExist", str)); //$NON-NLS-1$
return status;
}
}
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