/*******************************************************************************
* Copyright (c) 2000, 2006 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
* Sebastian Davids <sdavids@gmx.de> - Fix for bug 19346 - Dialog font
* should be activated and used by other components.
*******************************************************************************/
package org.eclipse.ui.internal.dialogs;
import java.util.Arrays;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.CheckStateChangedEvent;
import org.eclipse.jface.viewers.CheckboxTableViewer;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.ICheckStateListener;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkingSet;
import org.eclipse.ui.IWorkingSetManager;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.dialogs.IWorkingSetSelectionDialog;
import org.eclipse.ui.internal.AggregateWorkingSet;
import org.eclipse.ui.internal.IWorkbenchHelpContextIds;
import org.eclipse.ui.internal.WorkbenchMessages;
import org.eclipse.ui.internal.WorkbenchPlugin;
import org.eclipse.ui.internal.util.Util;
import org.eclipse.ui.model.WorkbenchViewerComparator;
/**
* A working set selection dialog displays a list of working
* sets available in the workbench.
*
* @see IWorkingSetSelectionDialog
* @since 2.0
*/
public class WorkingSetSelectionDialog extends AbstractWorkingSetDialog {
private final static int SIZING_SELECTION_WIDGET_HEIGHT = 200;
private final static int SIZING_SELECTION_WIDGET_WIDTH = 50;
private ILabelProvider labelProvider;
private IStructuredContentProvider contentProvider;
private CheckboxTableViewer listViewer;
private boolean multiSelect;
private IWorkbenchWindow workbenchWindow;
private Button buttonWindowSet;
private Button buttonNoSet;
private Button buttonSelectedSets;
/**
* Creates a working set selection dialog.
*
* @param parentShell the parent shell
* @param multi true=more than one working set can be chosen
* in the dialog. false=only one working set can be chosen. Multiple
* working sets can still be selected and removed from the list but
* the dialog can only be closed when a single working set is selected.
* @param workingSetIds a list of working set ids which are valid workings sets
* to be selected, created, removed or edited, or <code>null</code> if all currently
* available working set types are valid
*/
public WorkingSetSelectionDialog(Shell parentShell, boolean multi, String[] workingSetIds) {
super(parentShell, workingSetIds);
setShellStyle(getShellStyle() | SWT.RESIZE);
initWorkbenchWindow();
contentProvider = new ArrayContentProvider();
labelProvider = new WorkingSetLabelProvider();
multiSelect = multi;
if (multiSelect) {
setTitle(WorkbenchMessages.WorkingSetSelectionDialog_title_multiSelect);
setMessage(WorkbenchMessages.WorkingSetSelectionDialog_message_multiSelect);
} else {
setTitle(WorkbenchMessages.WorkingSetSelectionDialog_title);
setMessage(WorkbenchMessages.WorkingSetSelectionDialog_message);
}
}
/**
* Determine what window this dialog is being opened on. This impacts the
* returned working set in the case where the user chooses the window set.
*
* @since 3.2
*/
private void initWorkbenchWindow() {
Shell shellToCheck = getShell();
workbenchWindow = Util.getWorkbenchWindowForShell(shellToCheck);
}
/**
* Overrides method from Dialog.
*
* @see org.eclipse.jface.dialogs.Dialog#cancelPressed()
*/
protected void cancelPressed() {
restoreAddedWorkingSets();
restoreChangedWorkingSets();
restoreRemovedWorkingSets();
setSelection(null);
super.cancelPressed();
}
/**
* Overrides method from Window.
*
* @see org.eclipse.jface.window.Window#configureShell(Shell)
*/
protected void configureShell(Shell shell) {
super.configureShell(shell);
PlatformUI.getWorkbench().getHelpSystem().setHelp(shell,
IWorkbenchHelpContextIds.WORKING_SET_SELECTION_DIALOG);
}
/**
* Overrides method from Dialog.
* Create the dialog widgets.
*
* @see org.eclipse.jface.dialogs.Dialog#createDialogArea(Composite)
*/
protected Control createDialogArea(Composite parent) {
initializeDialogUnits(parent);
Composite composite = (Composite) super.createDialogArea(parent);
createMessageArea(composite);
SelectionListener listener = new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
updateButtonAvailability();
}
};
buttonWindowSet = new Button(composite, SWT.RADIO);
buttonWindowSet.setText(WorkbenchMessages.WindowWorkingSets);
buttonWindowSet.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
buttonWindowSet.addSelectionListener(listener);
buttonNoSet = new Button(composite, SWT.RADIO);
buttonNoSet.setText(WorkbenchMessages.NoWorkingSet);
buttonNoSet.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
buttonNoSet.addSelectionListener(listener);
buttonSelectedSets = new Button(composite, SWT.RADIO);
buttonSelectedSets.setText(WorkbenchMessages.SelectedWorkingSets);
buttonSelectedSets.addSelectionListener(listener);
switch (getInitialRadioSelection()) {
case 0:
buttonWindowSet.setSelection(true);
break;
case 1:
buttonNoSet.setSelection(true);
break;
case 2:
buttonSelectedSets.setSelection(true);
break;
}
buttonSelectedSets
.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
Composite viewerComposite = new Composite(composite, SWT.NONE);
GridLayout layout = new GridLayout(2, false);
layout.marginHeight = layout.marginWidth = 0;
layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING);
layout.verticalSpacing = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING);
viewerComposite.setLayout(layout);
GridData data = new GridData(GridData.FILL_BOTH);
data.heightHint = SIZING_SELECTION_WIDGET_HEIGHT;
data.widthHint = SIZING_SELECTION_WIDGET_WIDTH + 300; // fudge? I like fudge.
viewerComposite.setLayoutData(data);
listViewer = CheckboxTableViewer.newCheckList(viewerComposite,
SWT.BORDER | SWT.MULTI);
data = new GridData(GridData.FILL_BOTH);
data.heightHint = SIZING_SELECTION_WIDGET_HEIGHT;
data.widthHint = SIZING_SELECTION_WIDGET_WIDTH;
listViewer.getTable().setLayoutData(data);
listViewer.setLabelProvider(labelProvider);
listViewer.setContentProvider(contentProvider);
listViewer.setComparator(new WorkbenchViewerComparator());
listViewer.addFilter(new WorkingSetFilter(getSupportedWorkingSetIds()));
listViewer.addSelectionChangedListener(new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent event) {
handleSelectionChanged();
}
});
listViewer.addDoubleClickListener(new IDoubleClickListener() {
public void doubleClick(DoubleClickEvent event) {
Object obj = ((IStructuredSelection) listViewer.getSelection())
.getFirstElement();
listViewer.setCheckedElements(new Object[] {obj});
buttonWindowSet.setSelection(false);
buttonNoSet.setSelection(false);
buttonSelectedSets.setSelection(true);
okPressed();
}
});
listViewer.addCheckStateListener(new ICheckStateListener() {
public void checkStateChanged(CheckStateChangedEvent event) {
// implicitly select the third radio button
buttonWindowSet.setSelection(false);
buttonNoSet.setSelection(false);
buttonSelectedSets.setSelection(true);
}
});
addModifyButtons(viewerComposite);
addSelectionButtons(composite);
listViewer.setInput(Arrays.asList(WorkbenchPlugin.getDefault()
.getWorkingSetManager().getWorkingSets()));
List initialElementSelections = getInitialElementSelections();
if (multiSelect) {
listViewer.setCheckedElements(initialElementSelections.toArray());
} else if (!initialElementSelections.isEmpty()) {
IWorkingSet set = (IWorkingSet) initialElementSelections.get(0);
if (set instanceof AggregateWorkingSet) {
AggregateWorkingSet aggregate = (AggregateWorkingSet) set;
listViewer.setCheckedElements(aggregate.getComponents());
}
else {
listViewer.setCheckedElements(initialElementSelections.toArray());
}
}
availableWorkingSetsChanged();
Dialog.applyDialogFont(composite);
return composite;
}
private int getInitialRadioSelection() {
IWorkingSet windowSet = workbenchWindow.getActivePage().getAggregateWorkingSet();
int selectionIndex;
if (getSelection() != null && getSelection().length > 0) {
if (windowSet.equals(getSelection()[0])) {
selectionIndex = 0;
}
else {
selectionIndex = 2;
}
}
else {
selectionIndex = 1;
}
return selectionIndex;
}
/**
* Overrides method from Dialog.
* Sets the initial selection, if any.
*
* @see org.eclipse.jface.dialogs.Dialog#createContents(Composite)
*/
protected Control createContents(Composite parent) {
Control control = super.createContents(parent);
List selections = getInitialElementSelections();
if (!selections.isEmpty()) {
listViewer.setSelection(new StructuredSelection(selections), true);
}
updateButtonAvailability();
return control;
}
/**
* Returns the selected working sets.
*
* @return the selected working sets
*/
protected List getSelectedWorkingSets() {
ISelection selection = listViewer.getSelection();
if (selection instanceof IStructuredSelection) {
return ((IStructuredSelection) selection).toList();
}
return null;
}
/**
* Called when the selection has changed.
*/
void handleSelectionChanged() {
updateButtonAvailability();
}
/**
* Sets the selected working sets as the dialog result.
* Overrides method from Dialog
*
* @see org.eclipse.jface.dialogs.Dialog#okPressed()
*/
protected void okPressed() {
if (buttonWindowSet.getSelection()) {
IWorkingSet [] windowSet = new IWorkingSet[] {workbenchWindow.getActivePage().getAggregateWorkingSet()};
setSelection(windowSet);
setResult(Arrays.asList(getSelection()));
}
else if (buttonNoSet.getSelection()) {
setSelection(new IWorkingSet[0]);
setResult(Arrays.asList(getSelection()));
}
else if (buttonSelectedSets.getSelection()) {
Object[] untypedResult = listViewer.getCheckedElements();
IWorkingSet[] typedResult = new IWorkingSet[untypedResult.length];
System.arraycopy(untypedResult, 0, typedResult, 0,
untypedResult.length);
// if multiselect is allowed or there was only one selected then dont create
// an aggregate
if (multiSelect || typedResult.length <= 1) {
setSelection(typedResult);
setResult(Arrays.asList(typedResult));
}
else {
String setId = getAggregateIdForSets(typedResult);
IWorkingSetManager workingSetManager = workbenchWindow
.getWorkbench().getWorkingSetManager();
IWorkingSet aggregate = workingSetManager
.getWorkingSet(setId);
if (aggregate == null) {
aggregate = workingSetManager
.createAggregateWorkingSet(
setId,
WorkbenchMessages.WorkbenchPage_workingSet_multi_label,
typedResult);
workingSetManager.addWorkingSet(aggregate);
}
setSelection(new IWorkingSet[] {aggregate});
setResult(Collections.singletonList(aggregate));
}
}
super.okPressed();
}
/**
* Create a string that represents the name of the aggregate set composed of
* the supplied working sets. It's very long and not printworthy.
*
* @param typedResult the sets
* @return the name
*/
private String getAggregateIdForSets(IWorkingSet[] typedResult) {
StringBuffer buffer = new StringBuffer();
buffer.append("Aggregate:"); //$NON-NLS-1$
for (int i = 0; i < typedResult.length; i++) {
buffer.append(typedResult[i].getName()).append(':');
}
return buffer.toString();
}
/**
* Removes newly created working sets from the working set manager.
*/
private void restoreAddedWorkingSets() {
IWorkingSetManager manager = WorkbenchPlugin.getDefault()
.getWorkingSetManager();
Iterator iterator = getAddedWorkingSets().iterator();
while (iterator.hasNext()) {
manager.removeWorkingSet(((IWorkingSet) iterator.next()));
}
}
/**
* Rolls back changes to working sets.
*/
private void restoreChangedWorkingSets() {
Iterator iterator = getEditedWorkingSets().keySet().iterator();
while (iterator.hasNext()) {
IWorkingSet editedWorkingSet = (IWorkingSet) iterator.next();
IWorkingSet originalWorkingSet = (IWorkingSet) getEditedWorkingSets()
.get(editedWorkingSet);
if (editedWorkingSet.getName().equals(originalWorkingSet.getName()) == false) {
editedWorkingSet.setName(originalWorkingSet.getName());
}
if (editedWorkingSet.getElements().equals(
originalWorkingSet.getElements()) == false) {
editedWorkingSet.setElements(originalWorkingSet.getElements());
}
}
}
/**
* Adds back removed working sets to the working set manager.
*/
private void restoreRemovedWorkingSets() {
IWorkingSetManager manager = WorkbenchPlugin.getDefault()
.getWorkingSetManager();
Iterator iterator = getRemovedWorkingSets().iterator();
while (iterator.hasNext()) {
manager.addWorkingSet(((IWorkingSet) iterator.next()));
}
iterator = getRemovedMRUWorkingSets().iterator();
while (iterator.hasNext()) {
manager.addRecentWorkingSet(((IWorkingSet) iterator.next()));
}
}
/**
* Implements IWorkingSetSelectionDialog.
*
* @see org.eclipse.ui.dialogs.IWorkingSetSelectionDialog#setSelection(IWorkingSet[])
*/
public void setSelection(IWorkingSet[] workingSets) {
super.setSelection(workingSets);
setInitialSelections(workingSets == null ? new Object[0] : workingSets);
}
protected void availableWorkingSetsChanged() {
listViewer.setInput(PlatformUI.getWorkbench().getWorkingSetManager().getWorkingSets());
super.availableWorkingSetsChanged();
}
protected void selectAllSets() {
listViewer.setCheckedElements(PlatformUI.getWorkbench().getWorkingSetManager().getWorkingSets());
// implicitly select the third radio button
buttonWindowSet.setSelection(false);
buttonNoSet.setSelection(false);
buttonSelectedSets.setSelection(true);
updateButtonAvailability();
}
protected void deselectAllSets() {
listViewer.setCheckedElements(new Object[0]);
// implicitly select the third radio button
buttonWindowSet.setSelection(false);
buttonNoSet.setSelection(false);
buttonSelectedSets.setSelection(true);
updateButtonAvailability();
}
}