/*******************************************************************************
* Copyright (c) 2000, 2007 IBM Corporation 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
*
*******************************************************************************/
package org.eclipse.php.internal.ui.util;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.dltk.core.IModelElement;
import org.eclipse.dltk.core.IProjectFragment;
import org.eclipse.dltk.core.IScriptFolder;
import org.eclipse.dltk.internal.corext.refactoring.RefactoringCoreMessages;
import org.eclipse.dltk.internal.corext.refactoring.reorg.IConfirmQuery;
import org.eclipse.dltk.internal.corext.refactoring.reorg.IReorgQueries;
import org.eclipse.dltk.internal.corext.refactoring.reorg.ReorgUtils;
import org.eclipse.dltk.internal.corext.util.Resources;
class ReadOnlyResourceFinder {
private ReadOnlyResourceFinder() {
}
static boolean confirmDeleteOfReadOnlyElements(
IModelElement[] modelElements, IResource[] resources,
IReorgQueries queries) throws CoreException {
String queryTitle = RefactoringCoreMessages.ReadOnlyResourceFinder_0;
String question = RefactoringCoreMessages.ReadOnlyResourceFinder_1;
return ReadOnlyResourceFinder.confirmOperationOnReadOnlyElements(
queryTitle, question, modelElements, resources, queries);
}
static boolean confirmMoveOfReadOnlyElements(IModelElement[] modelElements,
IResource[] resources, IReorgQueries queries) throws CoreException {
String queryTitle = RefactoringCoreMessages.ReadOnlyResourceFinder_2;
String question = RefactoringCoreMessages.ReadOnlyResourceFinder_3;
return ReadOnlyResourceFinder.confirmOperationOnReadOnlyElements(
queryTitle, question, modelElements, resources, queries);
}
private static boolean confirmOperationOnReadOnlyElements(
String queryTitle, String question, IModelElement[] modelElements,
IResource[] resources, IReorgQueries queries) throws CoreException {
boolean hasReadOnlyResources = ReadOnlyResourceFinder
.hasReadOnlyResourcesAndSubResources(modelElements, resources);
if (hasReadOnlyResources) {
IConfirmQuery query = queries.createYesNoQuery(queryTitle, false,
IReorgQueries.CONFIRM_READ_ONLY_ELEMENTS);
return query.confirm(question);
}
return true;
}
private static boolean hasReadOnlyResourcesAndSubResources(
IModelElement[] modelElements, IResource[] resources)
throws CoreException {
return (hasReadOnlyResourcesAndSubResources(resources) || hasReadOnlyResourcesAndSubResources(modelElements));
}
private static boolean hasReadOnlyResourcesAndSubResources(
IModelElement[] modelElements) throws CoreException {
for (int i = 0; i < modelElements.length; i++) {
if (hasReadOnlyResourcesAndSubResources(modelElements[i]))
return true;
}
return false;
}
private static boolean hasReadOnlyResourcesAndSubResources(
IModelElement modelElement) throws CoreException {
switch (modelElement.getElementType()) {
case IModelElement.SOURCE_MODULE:
IResource resource = ReorgUtils.getResource(modelElement);
return (resource != null && Resources.isReadOnly(resource));
case IModelElement.SCRIPT_FOLDER:
IResource packResource = ReorgUtils.getResource(modelElement);
if (packResource == null)
return false;
IScriptFolder pack = (IScriptFolder) modelElement;
if (Resources.isReadOnly(packResource))
return true;
Object[] nonScript = pack.getForeignResources();
for (int i = 0; i < nonScript.length; i++) {
Object object = nonScript[i];
if (object instanceof IResource
&& hasReadOnlyResourcesAndSubResources((IResource) object))
return true;
}
return hasReadOnlyResourcesAndSubResources(pack.getChildren());
case IModelElement.PROJECT_FRAGMENT:
IProjectFragment root = (IProjectFragment) modelElement;
if (root.isArchive())
return false;
IResource pfrResource = ReorgUtils.getResource(modelElement);
if (pfrResource == null)
return false;
if (Resources.isReadOnly(pfrResource))
return true;
Object[] nonScript1 = root.getForeignResources();
for (int i = 0; i < nonScript1.length; i++) {
Object object = nonScript1[i];
if (object instanceof IResource
&& hasReadOnlyResourcesAndSubResources((IResource) object))
return true;
}
return hasReadOnlyResourcesAndSubResources(root.getChildren());
case IModelElement.FIELD:
// case IModelElement.IMPORT_CONTAINER:
// case IModelElement.IMPORT_DECLARATION:
// case IModelElement.INITIALIZER:
case IModelElement.METHOD:
// case IModelElement.PACKAGE_DECLARATION:
case IModelElement.TYPE:
return false;
default:
Assert.isTrue(false);// not handled here
return false;
}
}
private static boolean hasReadOnlyResourcesAndSubResources(
IResource[] resources) throws CoreException {
for (int i = 0; i < resources.length; i++) {
if (hasReadOnlyResourcesAndSubResources(resources[i]))
return true;
}
return false;
}
private static boolean hasReadOnlyResourcesAndSubResources(
IResource resource) throws CoreException {
if (resource.isLinked()) // we don't want to count these because we
// never actually delete linked resources
return false;
if (Resources.isReadOnly(resource))
return true;
if (resource instanceof IContainer)
return hasReadOnlyResourcesAndSubResources(((IContainer) resource)
.members());
return false;
}
}