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/*******************************************************************************
* Copyright (c) 2007, 2010 Intel 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
*
* Contributors:
* Intel Corporation - initial API and implementation
* Nokia - converted from action to handler
*******************************************************************************/
package org.eclipse.cdt.internal.ui.actions;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jface.text.ITextSelection;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.window.Window;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.ISources;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.dialogs.ListSelectionDialog;
import org.eclipse.ui.handlers.HandlerUtil;
import org.eclipse.cdt.core.model.CoreModel;
import org.eclipse.cdt.core.model.ICContainer;
import org.eclipse.cdt.core.model.ICElement;
import org.eclipse.cdt.core.model.ITranslationUnit;
import org.eclipse.cdt.core.settings.model.ICConfigurationDescription;
import org.eclipse.cdt.core.settings.model.ICProjectDescription;
import org.eclipse.cdt.core.settings.model.ICResourceDescription;
import org.eclipse.cdt.ui.CUIPlugin;
import org.eclipse.cdt.ui.newui.AbstractPage;
/**
* Handler for command that deletes resource description. (If resource description is missing
* one from parent is normally used)
*/
public class DeleteResConfigsHandler extends AbstractHandler {
protected ArrayList<IResource> objects;
private ArrayList<ResCfgData> outData;
@Override
public void setEnabled(Object context) {
ISelection selection = getSelection(context);
setEnabledFromSelection(selection);
}
protected ISelection getSelection(Object context) {
Object s = HandlerUtil.getVariable(context, ISources.ACTIVE_MENU_SELECTION_NAME);
if (s instanceof ISelection) {
return (ISelection) s;
}
return null;
}
public void setEnabledFromSelection(ISelection selection) {
objects = null;
if ((selection != null) && !selection.isEmpty()) {
// case for context menu
Object[] obs = null;
if (selection instanceof IStructuredSelection) {
obs = ((IStructuredSelection)selection).toArray();
}
else if (selection instanceof ITextSelection) {
IFile file = getFileFromActiveEditor();
if (file != null)
obs = Collections.singletonList(file).toArray();
}
if (obs != null && obs.length > 0) {
for (int i=0; i<obs.length; i++) {
IResource res = null;
// only folders and files may be affected by this action
if (obs[i] instanceof ICContainer || obs[i] instanceof ITranslationUnit)
res = ((ICElement)obs[i]).getResource();
// project's configuration cannot be deleted
else if (obs[i] instanceof IResource && !(obs[i] instanceof IProject))
res = (IResource)obs[i];
if (res != null) {
IProject p = res.getProject();
if (!p.isOpen()) continue;
if (!CoreModel.getDefault().isNewStyleProject(p))
continue;
IPath path = res.getProjectRelativePath();
// getting description in read-only mode
ICProjectDescription prjd = CoreModel.getDefault().getProjectDescription(p, false);
if (prjd == null) continue;
ICConfigurationDescription[] cfgds = prjd.getConfigurations();
if (cfgds == null || cfgds.length == 0) continue;
for (ICConfigurationDescription cfgd : cfgds) {
ICResourceDescription rd = cfgd.getResourceDescription(path, true);
if (rd != null) {
if (objects == null) objects = new ArrayList<IResource>();
objects.add(res);
break; // stop configurations scanning
}
}
}
}
}
}
setBaseEnabled(objects != null);
}
private IFile getFileFromActiveEditor() {
IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
if (window != null) {
IWorkbenchPage page = window.getActivePage();
if (page != null) {
IEditorPart editor = page.getActiveEditor();
if (editor != null) {
IEditorInput input = editor.getEditorInput();
if (input != null)
return input.getAdapter(IFile.class);
}
}
}
return null;
}
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
openDialog();
return null;
}
private void openDialog() {
if (objects == null || objects.size() == 0) return;
// create list of configurations to delete
ListSelectionDialog dialog = new ListSelectionDialog(
CUIPlugin.getActiveWorkbenchShell(),
objects,
createSelectionDialogContentProvider(),
new LabelProvider() {}, ActionMessages.DeleteResConfigsAction_0);
dialog.setTitle(ActionMessages.DeleteResConfigsAction_1);
if (dialog.open() == Window.OK) {
Object[] selected = dialog.getResult();
if (selected != null && selected.length > 0) {
for (Object element : selected) {
((ResCfgData)element).delete();
AbstractPage.updateViews(((ResCfgData)element).res);
}
}
}
}
// Stores data for resource description with its "parents".
class ResCfgData {
IResource res;
ICProjectDescription prjd;
ICConfigurationDescription cfgd;
ICResourceDescription rdesc;
public ResCfgData(IResource res2, ICProjectDescription prjd2,
ICConfigurationDescription cfgd2, ICResourceDescription rdesc2) {
res = res2; prjd = prjd2; cfgd = cfgd2; rdesc = rdesc2;
}
// performs deletion
public void delete() {
try {
cfgd.removeResourceDescription(rdesc);
CoreModel.getDefault().setProjectDescription(res.getProject(), prjd);
} catch (CoreException e) {}
}
@Override
public String toString() {
return "[" + cfgd.getName() + "] for " + res.getName(); //$NON-NLS-1$ //$NON-NLS-2$
}
}
private IStructuredContentProvider createSelectionDialogContentProvider() {
outData = null;
return new IStructuredContentProvider() {
@Override
public Object[] getElements(Object inputElement) {
if (outData != null) return outData.toArray();
outData = new ArrayList<ResCfgData>();
List<?> ls = (List<?>)inputElement;
Iterator<?> it = ls.iterator();
IProject proj = null;
ICProjectDescription prjd = null;
ICConfigurationDescription[] cfgds = null;
// creating list of all res descs for all objects
while (it.hasNext()) {
IResource res = (IResource)it.next();
IPath path = res.getProjectRelativePath();
if (res.getProject() != proj) {
proj = res.getProject();
prjd = CoreModel.getDefault().getProjectDescription(proj);
cfgds = prjd.getConfigurations();
}
if (cfgds != null) {
for (ICConfigurationDescription cfgd : cfgds) {
ICResourceDescription rd = cfgd.getResourceDescription(path, true);
if (rd != null)
outData.add(new ResCfgData(res, prjd, cfgd, rd));
}
}
}
return outData.toArray();
}
@Override
public void dispose() {}
@Override
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {}
};
}
}
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