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/*******************************************************************************
* Copyright (c) 2014, 2015 Red Hat.
* 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:
* Red Hat - Initial Contribution
*******************************************************************************/
package org.eclipse.linuxtools.internal.docker.ui.views;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.jface.viewers.AbstractTreeViewer;
import org.eclipse.jface.viewers.TreePath;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.linuxtools.docker.core.DockerConnectionManager;
import org.eclipse.linuxtools.docker.core.IDockerConnectionManagerListener;
import org.eclipse.linuxtools.docker.core.IDockerContainer;
import org.eclipse.linuxtools.docker.core.IDockerImage;
import org.eclipse.linuxtools.internal.docker.ui.wizards.NewDockerConnection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Link;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.forms.widgets.Form;
import org.eclipse.ui.forms.widgets.FormToolkit;
import org.eclipse.ui.navigator.CommonNavigator;
import org.eclipse.ui.navigator.CommonViewer;
import org.eclipse.ui.part.PageBook;
import org.eclipse.ui.views.properties.IPropertySheetPage;
import org.eclipse.ui.views.properties.tabbed.ITabbedPropertySheetPageContributor;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage;
/**
* @author xcoulon
*
*/
public class DockerExplorerView extends CommonNavigator implements
IDockerConnectionManagerListener, ITabbedPropertySheetPageContributor {
private static final String NO_CONNECTION_LABEL = "NoConnection.label"; //$NON-NLS-1$
public static final String VIEW_ID = "org.eclipse.linuxtools.docker.ui.dockerExplorerView";
private Control connectionsPane;
private Control explanationsPane;
private PageBook pageBook;
/** the search text widget. to filter containers and images. */
private Text search;
private ViewerFilter containersAndImagesSearchFilter;
@Override
protected Object getInitialInput() {
return DockerConnectionManager.getInstance();
}
@Override
protected CommonViewer createCommonViewer(final Composite parent) {
final CommonViewer viewer = super.createCommonViewer(parent);
setLinkingEnabled(false);
DockerConnectionManager.getInstance()
.addConnectionManagerListener(this);
return viewer;
}
@Override
public String getContributorId() {
return getSite().getId();
}
@Override
public Object getAdapter(@SuppressWarnings("rawtypes") final Class adapter) {
if (adapter == IPropertySheetPage.class) {
return new TabbedPropertySheetPage(this, true);
}
return super.getAdapter(adapter);
}
@Override
public void dispose() {
DockerConnectionManager.getInstance().removeConnectionManagerListener(
this);
super.dispose();
}
@Override
public void createPartControl(final Composite parent) {
final FormToolkit toolkit = new FormToolkit(parent.getDisplay());
this.pageBook = new PageBook(parent, SWT.NONE);
this.connectionsPane = createConnectionsPane(pageBook, toolkit);
this.explanationsPane = createExplanationPane(connectionsPane,
pageBook, toolkit);
showConnectionsOrExplanations();
this.containersAndImagesSearchFilter = getContainersAndImagesSearchFilter();
getCommonViewer().addFilter(containersAndImagesSearchFilter);
}
/**
* @return a {@link ViewerFilter} that will retain {@link IDockerContainer}
* and {@link IDockerImage} that match the content of the
* {@link DockerExplorerView#search} text widget.
*/
private ViewerFilter getContainersAndImagesSearchFilter() {
return new ViewerFilter() {
@Override
public boolean select(Viewer viewer, Object parentElement,
Object element) {
// filtering Docker containers
if (element instanceof IDockerContainer
|| element instanceof IDockerImage) {
return element.toString().contains(
DockerExplorerView.this.search.getText());
}
// any other element makes it through the filter (i.e., it is
// displayed)
return true;
}
};
}
private Control createConnectionsPane(final PageBook pageBook,
final FormToolkit toolkit) {
final Form form = toolkit.createForm(pageBook);
final Composite container = form.getBody();
GridLayoutFactory.fillDefaults().numColumns(1).margins(5, 5)
.applyTo(container);
this.search = new Text(container, SWT.SEARCH);
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.FILL)
.grab(true, false).applyTo(search);
search.addModifyListener(onSearch());
super.createPartControl(container);
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.FILL)
.grab(true, true).applyTo(getCommonViewer().getControl());
return form;
}
/**
* Filters {@link IDockerContainer} and {@link IDockerImage} using the input
* text in the search widget of this view.
*
* @return
*/
private ModifyListener onSearch() {
return new ModifyListener() {
@Override
public void modifyText(final ModifyEvent e) {
final CommonViewer viewer = DockerExplorerView.this
.getCommonViewer();
final TreePath[] treePaths = viewer.getExpandedTreePaths();
for (TreePath treePath : treePaths) {
final Object lastSegment = treePath.getLastSegment();
if (lastSegment instanceof DockerExplorerContentProvider.DockerContainersCategory
|| lastSegment instanceof DockerExplorerContentProvider.DockerImagesCategory) {
viewer.refresh(lastSegment);
viewer.expandToLevel(treePath,
AbstractTreeViewer.ALL_LEVELS);
}
}
}
};
}
private Control createExplanationPane(final Control connectionsPane,
final PageBook pageBook, final FormToolkit toolkit) {
final Form form = toolkit.createForm(pageBook);
final Composite container = form.getBody();
GridLayoutFactory.fillDefaults().numColumns(1).margins(5, 5)
.applyTo(container);
final Link link = new Link(container, SWT.NONE);
link.setText(DVMessages.getFormattedString(NO_CONNECTION_LABEL,
new String[0]));
link.setBackground(pageBook.getDisplay().getSystemColor(
SWT.COLOR_LIST_BACKGROUND));
GridDataFactory.fillDefaults().align(SWT.LEFT, SWT.FILL)
.grab(true, false).applyTo(link);
link.addSelectionListener(onExplanationClicked(connectionsPane, link));
return form;
}
private SelectionAdapter onExplanationClicked(
final Control connectionsPane, final Control explanationPane) {
return new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
final NewDockerConnection wizard = new NewDockerConnection();
final WizardDialog dialog = new WizardDialog(PlatformUI
.getWorkbench().getModalDialogShellProvider()
.getShell(), wizard);
if (dialog.open() == WizardDialog.OK) {
getCommonViewer().refresh();
}
// if a (first) connection is added, the
// DockerExplorerView#changeEvent(int) method
// will be called and the pageBook will show the connectionsPane
// instead of the explanationsPane
}
};
}
/**
* Shows the {@link DockerExplorerView#explanationsPane} or the
* {@link DockerExplorerView#connectionsPane} depending on the number of
* connections in the {@link DockerConnectionManager}.
*/
private void showConnectionsOrExplanations() {
if (DockerConnectionManager.getInstance().getConnections().length < 1) {
pageBook.showPage(explanationsPane);
} else {
pageBook.showPage(connectionsPane);
}
}
@Override
public void changeEvent(int type) {
showConnectionsOrExplanations();
}
}
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