/*
* Copyright 2010 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.guvnor.tools.views;
import java.net.URL;
import java.text.MessageFormat;
import java.util.Properties;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IMenuListener;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.IWorkbenchActionConstants;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.part.ViewPart;
import org.eclipse.webdav.IResponse;
import org.guvnor.tools.Activator;
import org.guvnor.tools.Messages;
import org.guvnor.tools.utils.GuvnorMetadataUtils;
import org.guvnor.tools.utils.PlatformUtils;
import org.guvnor.tools.utils.ResourceHistorySorter;
import org.guvnor.tools.utils.webdav.IWebDavClient;
import org.guvnor.tools.utils.webdav.WebDavClientFactory;
import org.guvnor.tools.utils.webdav.WebDavException;
import org.guvnor.tools.utils.webdav.WebDavServerCache;
import org.guvnor.tools.views.model.ResourceHistoryEntry;
/**
* View showing the revisions of a given resource.
*/
public class ResourceHistoryView extends ViewPart {
private Label repositoryLabel;
private Label resourceLabel;
private TableViewer viewer;
private Action showVersionAction;
/**
* The constructor.
*/
public ResourceHistoryView() { }
public void createPartControl(Composite parent) {
Composite composite = PlatformUtils.createComposite(parent, 1);
repositoryLabel = new Label(composite, SWT.NONE);
repositoryLabel.setText(Messages.getString("history.rep.label")); //$NON-NLS-1$
repositoryLabel.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
resourceLabel = new Label(composite, SWT.NONE);
resourceLabel.setText(MessageFormat.format(Messages.getString("history.resource.label"), //$NON-NLS-1$
new Object[] { "" }));
resourceLabel.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
viewer = new TableViewer(PlatformUtils.createResourceHistoryTable(composite));
viewer.getTable().setLayoutData(new GridData(GridData.FILL_BOTH));
viewer.setContentProvider(new ResourceHistoryContentProvider(new ResourceHistoryEntry[0]));
viewer.setLabelProvider(new ResourceHistoryLabelProvider());
viewer.setSorter(new ResourceHistorySorter());
viewer.setInput(getViewSite());
makeActions();
hookContextMenu();
hookDoubleClickAction();
}
private void hookContextMenu() {
MenuManager menuMgr = new MenuManager("#PopupMenu"); //$NON-NLS-1$
menuMgr.setRemoveAllWhenShown(true);
menuMgr.addMenuListener(new IMenuListener() {
public void menuAboutToShow(IMenuManager manager) {
ResourceHistoryView.this.fillContextMenu(manager);
}
});
Menu menu = menuMgr.createContextMenu(viewer.getControl());
viewer.getControl().setMenu(menu);
getSite().registerContextMenu(menuMgr, viewer);
}
private void fillContextMenu(IMenuManager manager) {
manager.add(showVersionAction);
manager.add(new Separator());
// Other plug-ins can contribute there actions here
manager.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS));
}
private void hookDoubleClickAction() {
viewer.addDoubleClickListener(new IDoubleClickListener() {
public void doubleClick(DoubleClickEvent event) {
showResourceVersionContents();
}
});
}
private void makeActions() {
showVersionAction = new Action() {
public void run() {
showResourceVersionContents();
}
};
showVersionAction.setText(Messages.getString("action.open")); //$NON-NLS-1$
showVersionAction.setToolTipText(Messages.getString("action.open.desc")); //$NON-NLS-1$
showVersionAction.setImageDescriptor(PlatformUI.getWorkbench().getSharedImages().
getImageDescriptor(ISharedImages.IMG_OBJ_FILE));
}
private void showResourceVersionContents() {
String repository = repositoryLabel.getToolTipText();
String fullPath = resourceLabel.getToolTipText();
ISelection selection = viewer.getSelection();
Object obj = ((IStructuredSelection)selection).getFirstElement();
if (obj instanceof ResourceHistoryEntry) {
ResourceHistoryEntry theEntry = (ResourceHistoryEntry)obj;
try {
IWebDavClient client = WebDavServerCache.getWebDavClient(repository);
if (client == null) {
client = WebDavClientFactory.createClient(new URL(repository));
WebDavServerCache.cacheWebDavClient(repository, client);
}
String contents = null;
try {
contents = client.getResourceVersionContents(fullPath, theEntry.getRevision());
} catch (WebDavException wde) {
if (wde.getErrorCode() != IResponse.SC_UNAUTHORIZED) {
// If not an authentication failure, we don't know what to do with it
throw wde;
}
boolean retry = PlatformUtils.getInstance().
authenticateForServer(repository, client);
if (retry) {
contents = client.getResourceVersionContents(fullPath, theEntry.getRevision());
}
}
if (contents != null) {
String editorTitle = null;
int pos = fullPath.lastIndexOf("/"); //$NON-NLS-1$
if (pos != -1
&& pos + 1 < fullPath.length()) {
editorTitle = fullPath.substring(pos + 1);
} else {
editorTitle = fullPath;
}
PlatformUtils.openEditor(contents, editorTitle + ", " + theEntry.getRevision()); //$NON-NLS-1$
}
} catch (Exception e) {
Activator.getDefault().displayError(IStatus.ERROR, e.getMessage(), e, true);
}
}
}
/**
* Passing the focus request to the viewer's control.
*/
public void setFocus() {
viewer.getControl().setFocus();
}
public void setEntries(String repository, String fullPath, Properties entryProps) {
repositoryLabel.setText(Messages.getString("history.rep.label") + repository); //$NON-NLS-1$
repositoryLabel.setToolTipText(repository);
resourceLabel.setText(MessageFormat.format(Messages.getString("history.resource.label"), //$NON-NLS-1$
new Object[] { fullPath.substring(repository.length()) }));
resourceLabel.setToolTipText(fullPath);
ResourceHistoryEntry[] entries = GuvnorMetadataUtils.parseHistoryProperties(entryProps);
viewer.setContentProvider(new ResourceHistoryContentProvider(entries));
viewer.setInput(getViewSite());
}
}