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/*******************************************************************************
* Copyright (c) 2008 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
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.pde.internal.ui.preferences;
import org.eclipse.jdt.core.IJavaProject;
import java.util.HashSet;
import java.util.Set;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.*;
import org.eclipse.jdt.core.*;
import org.eclipse.jdt.ui.*;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.viewers.*;
import org.eclipse.pde.internal.core.natures.PDE;
import org.eclipse.pde.internal.ui.*;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.*;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.dialogs.SelectionStatusDialog;
/**
* A dialog for selecting a project to configure project specific settings for
*
* @since 1.0.0
*/
public class ProjectSelectionDialog extends SelectionStatusDialog {
class ApiJavaElementContentProvider extends StandardJavaElementContentProvider {
public Object[] getChildren(Object element) {
if (element instanceof IJavaModel) {
IJavaModel model = (IJavaModel) element;
HashSet<IJavaProject> set = new HashSet<IJavaProject>();
try {
IJavaProject[] projects = model.getJavaProjects();
for (int i = 0; i < projects.length; i++) {
if (projects[i].getProject().hasNature(PDE.PLUGIN_NATURE)) {
set.add(projects[i]);
}
}
} catch (JavaModelException jme) {
//ignore
} catch (CoreException ce) {
//ignore
}
return set.toArray();
}
return super.getChildren(element);
}
}
// the visual selection widget group
private TableViewer fTableViewer;
private Set<?> fProjectsWithSpecifics;
// sizing constants
private final static int SIZING_SELECTION_WIDGET_HEIGHT = 250;
private final static int SIZING_SELECTION_WIDGET_WIDTH = 300;
private final static String DIALOG_SETTINGS_SHOW_ALL = "ProjectSelectionDialog.show_all"; //$NON-NLS-1$
/**
* The filter for the viewer
*/
private ViewerFilter fFilter;
/**
* Constructor
* @param parentShell
* @param projectsWithSpecifics
*/
public ProjectSelectionDialog(Shell parentShell, Set<?> projectsWithSpecifics) {
super(parentShell);
setTitle(PDEUIMessages.ProjectSelectionDialog_title);
setMessage(PDEUIMessages.ProjectSelectionDialog_message);
fProjectsWithSpecifics = projectsWithSpecifics;
fFilter = new ViewerFilter() {
public boolean select(Viewer viewer, Object parentElement, Object element) {
return fProjectsWithSpecifics.contains(element);
}
};
}
/* (non-Javadoc)
* Method declared on Dialog.
*/
protected Control createDialogArea(Composite parent) {
// page group
Composite composite = (Composite) super.createDialogArea(parent);
Font font = parent.getFont();
composite.setFont(font);
createMessageArea(composite);
fTableViewer = new TableViewer(composite, SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
fTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent event) {
doSelectionChanged(((IStructuredSelection) event.getSelection()).toArray());
}
});
fTableViewer.addDoubleClickListener(new IDoubleClickListener() {
public void doubleClick(DoubleClickEvent event) {
okPressed();
}
});
GridData data = new GridData(SWT.FILL, SWT.FILL, true, true);
data.heightHint = SIZING_SELECTION_WIDGET_HEIGHT;
data.widthHint = SIZING_SELECTION_WIDGET_WIDTH;
fTableViewer.getTable().setLayoutData(data);
fTableViewer.setLabelProvider(new JavaElementLabelProvider());
fTableViewer.setContentProvider(new ApiJavaElementContentProvider());
fTableViewer.setComparator(new JavaElementComparator());
fTableViewer.getControl().setFont(font);
Button checkbox = SWTFactory.createCheckButton(composite, PDEUIMessages.ProjectSelectionDialog_settingsTitle, null, false, 1);
checkbox.addSelectionListener(new SelectionListener() {
public void widgetSelected(SelectionEvent e) {
updateFilter(((Button) e.widget).getSelection());
}
public void widgetDefaultSelected(SelectionEvent e) {
updateFilter(((Button) e.widget).getSelection());
}
});
IDialogSettings dialogSettings = PDEPlugin.getDefault().getDialogSettings();
boolean doFilter = !dialogSettings.getBoolean(DIALOG_SETTINGS_SHOW_ALL) && !fProjectsWithSpecifics.isEmpty();
checkbox.setSelection(doFilter);
updateFilter(doFilter);
IJavaModel input = JavaCore.create(ResourcesPlugin.getWorkspace().getRoot());
fTableViewer.setInput(input);
doSelectionChanged(new Object[0]);
Dialog.applyDialogFont(composite);
PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, IHelpContextIds.PROJECT_SELECTION_DIALOG);
return composite;
}
/**
* Handles the change in selection of the viewer and updates the status of the dialog at the same time
* @param objects
*/
private void doSelectionChanged(Object[] objects) {
if (objects.length != 1) {
updateStatus(new Status(IStatus.ERROR, PDEPlugin.getPluginId(), "")); //$NON-NLS-1$
setSelectionResult(null);
} else {
updateStatus(new Status(IStatus.OK, PDEPlugin.getPluginId(), "")); //$NON-NLS-1$
setSelectionResult(objects);
}
}
/**
* Updates the viewer filter based on the selection of the 'show project with...' button
* @param selected
*/
protected void updateFilter(boolean selected) {
if (selected) {
fTableViewer.addFilter(fFilter);
} else {
fTableViewer.removeFilter(fFilter);
}
PDEPlugin.getDefault().getDialogSettings().put(DIALOG_SETTINGS_SHOW_ALL, !selected);
}
/* (non-Javadoc)
* @see org.eclipse.ui.dialogs.SelectionStatusDialog#computeResult()
*/
protected void computeResult() {
}
}
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