| /******************************************************************************* |
| * Copyright (c) 2008-2011 Chair for Applied Software Engineering, |
| * Technische Universitaet Muenchen. |
| * 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: |
| ******************************************************************************/ |
| /******************************************************************************* |
| * |
| * Copyright (c) 2000, 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.emf.emfstore.internal.client.ui.views.emfstorebrowser.views; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.jface.dialogs.Dialog; |
| import org.eclipse.jface.dialogs.IDialogConstants; |
| import org.eclipse.jface.dialogs.IDialogSettings; |
| import org.eclipse.jface.dialogs.TrayDialog; |
| import org.eclipse.jface.viewers.ILabelProvider; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.custom.BusyIndicator; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.events.SelectionListener; |
| import org.eclipse.swt.graphics.Font; |
| import org.eclipse.swt.graphics.Image; |
| 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.Event; |
| import org.eclipse.swt.widgets.Label; |
| import org.eclipse.swt.widgets.Listener; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.swt.widgets.Text; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.ui.dialogs.FilteredList; |
| import org.eclipse.ui.dialogs.ISelectionStatusValidator; |
| |
| /** |
| * This is a copy of the org.eclipse.ui.dialogs.ElementListSelectionDialog |
| * with its class hierarchy flattened. This is class is meant as a replacement |
| * in order to avoid a dependency to org.eclipse.ui due to e4. |
| * |
| */ |
| public abstract class ElementListSelectionDialog extends TrayDialog { |
| |
| // private static final String SELECT_ALL_TITLE = |
| // Messages.ElementListSelectionDialog_SelectAll; |
| |
| // private static final String DESELECT_ALL_TITLE = |
| // Messages.ElementListSelectionDialog_DeselectAll; |
| |
| private FilteredList fFilteredList; |
| |
| private MessageLine fStatusLine; |
| |
| private IStatus fLastStatus; |
| |
| private Image fImage; |
| |
| private ILabelProvider fRenderer; |
| |
| private boolean fIgnoreCase = true; |
| |
| private boolean fIsMultipleSelection; |
| |
| private boolean fMatchEmptyString = true; |
| |
| private boolean fAllowDuplicates = true; |
| |
| private Label fMessage; |
| |
| private Text fFilterText; |
| |
| private ISelectionStatusValidator fValidator; |
| |
| private String fFilter; |
| |
| private String fEmptyListMessage = ""; //$NON-NLS-1$ |
| |
| private String fEmptySelectionMessage = ""; //$NON-NLS-1$ |
| |
| private int fWidth = 60; |
| |
| private int fHeight = 18; |
| |
| private boolean fStatusLineAboveButtons; |
| |
| private Object[] fSelection = new Object[0]; |
| |
| // the final collection of selected elements, or null if this dialog was |
| // canceled |
| private Object[] result; |
| |
| // a collection of the initially-selected elements |
| private List<Object> initialSelections = new ArrayList<Object>(); |
| |
| // title of dialog |
| private String title; |
| |
| // message to show user |
| private String message = ""; //$NON-NLS-1$ |
| |
| // dialog bounds strategy (since 3.2) |
| private int dialogBoundsStrategy = Dialog.DIALOG_PERSISTLOCATION | Dialog.DIALOG_PERSISTSIZE; |
| |
| // dialog settings for storing bounds (since 3.2) |
| private IDialogSettings dialogBoundsSettings; |
| |
| /** |
| * Constructor. |
| * |
| * @param shell |
| * the parent {@link Shell} |
| */ |
| protected ElementListSelectionDialog(Shell shell) { |
| super(shell); |
| } |
| |
| /** |
| * Controls whether status line appears to the left of the buttons (default) |
| * or above them. |
| * |
| * @param aboveButtons if <code>true</code> status line is placed above buttons; if <code>false</code> to the right |
| */ |
| public void setStatusLineAboveButtons(boolean aboveButtons) { |
| fStatusLineAboveButtons = aboveButtons; |
| } |
| |
| /* |
| * (non-Javadoc) Method declared in Window. |
| */ |
| @Override |
| protected void configureShell(Shell shell) { |
| super.configureShell(shell); |
| if (title != null) { |
| shell.setText(title); |
| if (fImage != null) { |
| shell.setImage(fImage); |
| } |
| } |
| } |
| |
| /* |
| * (non-Javadoc) Method declared on Dialog. |
| */ |
| @Override |
| protected void createButtonsForButtonBar(Composite parent) { |
| createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, |
| true); |
| createButton(parent, IDialogConstants.CANCEL_ID, |
| IDialogConstants.CANCEL_LABEL, false); |
| } |
| |
| /* |
| * @see Dialog#createButtonBar(Composite) |
| */ |
| @Override |
| protected Control createButtonBar(Composite parent) { |
| final Font font = parent.getFont(); |
| final Composite composite = new Composite(parent, SWT.NULL); |
| final GridLayout layout = new GridLayout(); |
| if (!fStatusLineAboveButtons) { |
| layout.numColumns = 2; |
| } |
| layout.marginHeight = 0; |
| layout.marginLeft = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN); |
| layout.marginWidth = 0; |
| composite.setLayout(layout); |
| composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); |
| composite.setFont(font); |
| |
| if (!fStatusLineAboveButtons && isHelpAvailable()) { |
| createHelpControl(composite); |
| } |
| fStatusLine = new MessageLine(composite); |
| fStatusLine.setAlignment(SWT.LEFT); |
| final GridData statusData = new GridData(GridData.FILL_HORIZONTAL); |
| fStatusLine.setErrorStatus(null); |
| fStatusLine.setFont(font); |
| if (fStatusLineAboveButtons && isHelpAvailable()) { |
| statusData.horizontalSpan = 2; |
| createHelpControl(composite); |
| } |
| fStatusLine.setLayoutData(statusData); |
| |
| /* |
| * Create the rest of the button bar, but tell it not to |
| * create a help button (we've already created it). |
| */ |
| final boolean helpAvailable = isHelpAvailable(); |
| setHelpAvailable(false); |
| super.createButtonBar(composite); |
| setHelpAvailable(helpAvailable); |
| return composite; |
| } |
| |
| /** |
| * Creates the message area for this dialog. |
| * <p> |
| * This method is provided to allow subclasses to decide where the message will appear on the screen. |
| * </p> |
| * |
| * @param composite |
| * the parent composite |
| * @return the message label |
| */ |
| protected Label createMessageArea(Composite composite) { |
| final Label label = new Label(composite, SWT.NONE); |
| if (message != null) { |
| label.setText(message); |
| } |
| label.setFont(composite.getFont()); |
| |
| final GridData data = new GridData(); |
| data.grabExcessVerticalSpace = false; |
| data.grabExcessHorizontalSpace = true; |
| data.horizontalAlignment = GridData.FILL; |
| data.verticalAlignment = GridData.BEGINNING; |
| label.setLayoutData(data); |
| |
| fMessage = label; |
| return label; |
| } |
| |
| /** |
| * Returns the list of initial element selections. |
| * |
| * @return List |
| */ |
| protected List<Object> getInitialElementSelections() { |
| return initialSelections; |
| } |
| |
| /** |
| * Returns the message for this dialog. |
| * |
| * @return the message for this dialog |
| */ |
| protected String getMessage() { |
| return message; |
| } |
| |
| /** |
| * Returns the ok button. |
| * |
| * @return the ok button or <code>null</code> if the button is not created |
| * yet. |
| */ |
| public Button getOkButton() { |
| return getButton(IDialogConstants.OK_ID); |
| } |
| |
| /** |
| * Returns the list of selections made by the user, or <code>null</code> if the selection was canceled. |
| * |
| * @return the array of selected elements, or <code>null</code> if Cancel |
| * was pressed |
| */ |
| public Object[] getResult() { |
| return result; |
| } |
| |
| /** |
| * Sets the initial selection in this selection dialog to the given |
| * elements. |
| * |
| * @param selectedElements |
| * the array of elements to select |
| */ |
| public void setInitialSelections(Object[] selectedElements) { |
| initialSelections = new ArrayList<Object>(selectedElements.length); |
| for (int i = 0; i < selectedElements.length; i++) { |
| initialSelections.add(selectedElements[i]); |
| } |
| } |
| |
| /** |
| * Sets the initial selection in this selection dialog to the given |
| * elements. |
| * |
| * @param selectedElements |
| * the List of elements to select |
| */ |
| public void setInitialElementSelections(List<Object> selectedElements) { |
| initialSelections = selectedElements; |
| } |
| |
| /** |
| * Sets the message for this dialog. |
| * |
| * @param message |
| * the message |
| */ |
| public void setMessage(String message) { |
| this.message = message; |
| } |
| |
| /** |
| * Set the selections made by the user, or <code>null</code> if the |
| * selection was canceled. |
| * |
| * @param newResult |
| * list of selected elements, or <code>null</code> if Cancel |
| * was pressed |
| */ |
| protected void setResult(List<Object> newResult) { |
| if (newResult == null) { |
| result = null; |
| } else { |
| result = new Object[newResult.size()]; |
| newResult.toArray(result); |
| } |
| } |
| |
| /** |
| * Set the selections made by the user, or <code>null</code> if the |
| * selection was canceled. |
| * <p> |
| * The selections may accessed using <code>getResult</code>. |
| * </p> |
| * |
| * @param newResult - |
| * the new values |
| * @since 2.0 |
| */ |
| protected void setSelectionResult(Object[] newResult) { |
| result = newResult; |
| } |
| |
| /** |
| * Sets the title for this dialog. |
| * |
| * @param title |
| * the title |
| */ |
| public void setTitle(String title) { |
| this.title = title; |
| } |
| |
| /** |
| * Set the dialog settings that should be used to save the bounds of this |
| * dialog. This method is provided so that clients that directly use |
| * SelectionDialogs without subclassing them may specify how the bounds of |
| * the dialog are to be saved. |
| * |
| * @param settings |
| * the {@link IDialogSettings} that should be used to store the |
| * bounds of the dialog |
| * |
| * @param strategy |
| * the integer constant specifying how the bounds are saved. |
| * Specified using {@link Dialog#DIALOG_PERSISTLOCATION} and {@link Dialog#DIALOG_PERSISTSIZE}. |
| * |
| * @since 3.2 |
| * |
| * @see Dialog#getDialogBoundsStrategy() |
| * @see Dialog#getDialogBoundsSettings() |
| */ |
| public void setDialogBoundsSettings(IDialogSettings settings, int strategy) { |
| dialogBoundsStrategy = strategy; |
| dialogBoundsSettings = settings; |
| } |
| |
| /** |
| * Gets the dialog settings that should be used for remembering the bounds |
| * of the dialog, according to the dialog bounds strategy. Overridden to |
| * provide the dialog settings that were set using {@link #setDialogBoundsSettings(IDialogSettings, int)}. |
| * |
| * @return the dialog settings used to store the dialog's location and/or |
| * size, or <code>null</code> if the dialog's bounds should not be |
| * stored. |
| * |
| * @since 3.2 |
| * |
| * @see Dialog#getDialogBoundsStrategy() |
| * @see #setDialogBoundsSettings(IDialogSettings, int) |
| */ |
| @Override |
| protected IDialogSettings getDialogBoundsSettings() { |
| return dialogBoundsSettings; |
| } |
| |
| /** |
| * Get the integer constant that describes the strategy for persisting the |
| * dialog bounds. Overridden to provide the dialog bounds strategy that was |
| * set using {@link #setDialogBoundsSettings(IDialogSettings, int)}. |
| * |
| * @return the constant describing the strategy for persisting the dialog |
| * bounds. |
| * |
| * @since 3.2 |
| * @see Dialog#DIALOG_PERSISTLOCATION |
| * @see Dialog#DIALOG_PERSISTSIZE |
| * @see Dialog#getDialogBoundsSettings() |
| * @see #setDialogBoundsSettings(IDialogSettings, int) |
| */ |
| @Override |
| protected int getDialogBoundsStrategy() { |
| return dialogBoundsStrategy; |
| } |
| |
| /** |
| * Sets the image for this dialog. |
| * |
| * @param image the image. |
| */ |
| public void setImage(Image image) { |
| fImage = image; |
| } |
| |
| /** |
| * Returns the first element from the list of results. Returns <code>null</code> if no element has been selected. |
| * |
| * @return the first result element if one exists. Otherwise <code>null</code> is |
| * returned. |
| */ |
| public Object getFirstResult() { |
| final Object[] result = getResult(); |
| if (result == null || result.length == 0) { |
| return null; |
| } |
| return result[0]; |
| } |
| |
| /** |
| * Sets a result element at the given position. |
| * |
| * @param position |
| * the position of the result |
| * @param element |
| * the result element |
| */ |
| protected void setResult(int position, Object element) { |
| final Object[] result = getResult(); |
| result[position] = element; |
| setResult(Arrays.asList(result)); |
| } |
| |
| /** |
| * Update the dialog's status line to reflect the given status. It is safe to call |
| * this method before the dialog has been opened. |
| * |
| * @param status |
| * the current status |
| */ |
| protected void updateStatus(IStatus status) { |
| fLastStatus = status; |
| if (fStatusLine != null && !fStatusLine.isDisposed()) { |
| updateButtonsEnableState(status); |
| fStatusLine.setErrorStatus(status); |
| } |
| } |
| |
| /** |
| * Update the status of the OK button to reflect the given status. Subclasses |
| * may override this method to update additional buttons. |
| * |
| * @param status |
| * the current status |
| */ |
| protected void updateButtonsEnableState(IStatus status) { |
| final Button okButton = getOkButton(); |
| if (okButton != null && !okButton.isDisposed()) { |
| okButton.setEnabled(!status.matches(IStatus.ERROR)); |
| } |
| } |
| |
| /* |
| * @see Dialog#okPressed() |
| */ |
| @Override |
| protected void okPressed() { |
| computeResult(); |
| super.okPressed(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.jface.dialogs.Dialog#isResizable() |
| */ |
| @Override |
| protected boolean isResizable() { |
| return true; |
| } |
| |
| /** |
| * Handles default selection (double click). |
| * By default, the OK button is pressed. |
| */ |
| protected void handleDefaultSelected() { |
| if (validateCurrentSelection()) { |
| buttonPressed(IDialogConstants.OK_ID); |
| } |
| } |
| |
| /** |
| * Specifies if sorting, filtering and folding is case sensitive. |
| * |
| * @param ignoreCase |
| * whether casing should be ignored |
| */ |
| public void setIgnoreCase(boolean ignoreCase) { |
| fIgnoreCase = ignoreCase; |
| } |
| |
| /** |
| * Returns if sorting, filtering and folding is case sensitive. |
| * |
| * @return boolean |
| */ |
| public boolean isCaseIgnored() { |
| return fIgnoreCase; |
| } |
| |
| /** |
| * Specifies whether everything or nothing should be filtered on |
| * empty filter string. |
| * |
| * @param matchEmptyString boolean |
| */ |
| public void setMatchEmptyString(boolean matchEmptyString) { |
| fMatchEmptyString = matchEmptyString; |
| } |
| |
| /** |
| * Specifies if multiple selection is allowed. |
| * |
| * @param isMultipleSelectionAllowed |
| * whether multiple selection is allowed |
| */ |
| public void setMultipleSelection(boolean isMultipleSelectionAllowed) { |
| fIsMultipleSelection = isMultipleSelectionAllowed; |
| } |
| |
| /** |
| * Specifies whether duplicate entries are displayed or not. |
| * |
| * @param allowDuplicates |
| * whether duplicates are allowed |
| */ |
| public void setAllowDuplicates(boolean allowDuplicates) { |
| fAllowDuplicates = allowDuplicates; |
| } |
| |
| /** |
| * Sets the list size in unit of characters. |
| * |
| * @param width the width of the list. |
| * @param height the height of the list. |
| */ |
| public void setSize(int width, int height) { |
| fWidth = width; |
| fHeight = height; |
| } |
| |
| /** |
| * Sets the message to be displayed if the list is empty. |
| * |
| * @param message the message to be displayed. |
| */ |
| public void setEmptyListMessage(String message) { |
| fEmptyListMessage = message; |
| } |
| |
| /** |
| * Sets the message to be displayed if the selection is empty. |
| * |
| * @param message the message to be displayed. |
| */ |
| public void setEmptySelectionMessage(String message) { |
| fEmptySelectionMessage = message; |
| } |
| |
| /** |
| * Sets an optional validator to check if the selection is valid. |
| * The validator is invoked whenever the selection changes. |
| * |
| * @param validator the validator to validate the selection. |
| */ |
| public void setValidator(ISelectionStatusValidator validator) { |
| fValidator = validator; |
| } |
| |
| /** |
| * Sets the elements of the list (widget). |
| * To be called within open(). |
| * |
| * @param elements the elements of the list. |
| */ |
| protected void setListElements(Object[] elements) { |
| Assert.isNotNull(fFilteredList); |
| fFilteredList.setElements(elements); |
| } |
| |
| /** |
| * Sets the filter pattern. |
| * |
| * @param filter the filter pattern. |
| */ |
| public void setFilter(String filter) { |
| if (fFilterText == null) { |
| fFilter = filter; |
| } else { |
| fFilterText.setText(filter); |
| } |
| } |
| |
| /** |
| * Returns the current filter pattern. |
| * |
| * @return returns the current filter pattern or {@code null} if filter was not set. |
| */ |
| public String getFilter() { |
| if (fFilteredList == null) { |
| return fFilter; |
| } |
| return fFilteredList.getFilter(); |
| } |
| |
| /** |
| * Returns the indices referring the current selection. |
| * To be called within open(). |
| * |
| * @return returns the indices of the current selection. |
| */ |
| protected int[] getSelectionIndices() { |
| Assert.isNotNull(fFilteredList); |
| return fFilteredList.getSelectionIndices(); |
| } |
| |
| /** |
| * Returns an index referring the first current selection. |
| * To be called within open(). |
| * |
| * @return returns the indices of the current selection. |
| */ |
| protected int getSelectionIndex() { |
| Assert.isNotNull(fFilteredList); |
| return fFilteredList.getSelectionIndex(); |
| } |
| |
| /** |
| * Sets the selection referenced by an array of elements. |
| * Empty or null array removes selection. |
| * To be called within open(). |
| * |
| * @param selection the indices of the selection. |
| */ |
| protected void setSelection(Object[] selection) { |
| Assert.isNotNull(fFilteredList); |
| fFilteredList.setSelection(selection); |
| } |
| |
| /** |
| * Returns an array of the currently selected elements. |
| * To be called within or after open(). |
| * |
| * @return returns an array of the currently selected elements. |
| */ |
| protected Object[] getSelectedElements() { |
| Assert.isNotNull(fFilteredList); |
| return fFilteredList.getSelection(); |
| } |
| |
| /** |
| * Returns all elements which are folded together to one entry in the list. |
| * |
| * @param index the index selecting the entry in the list. |
| * @return returns an array of elements folded together. |
| */ |
| public Object[] getFoldedElements(int index) { |
| Assert.isNotNull(fFilteredList); |
| return fFilteredList.getFoldedElements(index); |
| } |
| |
| /** |
| * Handles a selection changed event. |
| * By default, the current selection is validated. |
| */ |
| protected void handleSelectionChanged() { |
| validateCurrentSelection(); |
| } |
| |
| /** |
| * Validates the current selection and updates the status line |
| * accordingly. |
| * |
| * @return boolean <code>true</code> if the current selection is |
| * valid. |
| */ |
| protected boolean validateCurrentSelection() { |
| Assert.isNotNull(fFilteredList); |
| |
| IStatus status; |
| final Object[] elements = getSelectedElements(); |
| |
| if (elements.length > 0) { |
| if (fValidator != null) { |
| status = fValidator.validate(elements); |
| } else { |
| status = new Status(IStatus.OK, PlatformUI.PLUGIN_ID, |
| IStatus.OK, "", //$NON-NLS-1$ |
| null); |
| } |
| } else { |
| if (fFilteredList.isEmpty()) { |
| status = new Status(IStatus.ERROR, PlatformUI.PLUGIN_ID, |
| IStatus.ERROR, fEmptyListMessage, null); |
| } else { |
| status = new Status(IStatus.ERROR, PlatformUI.PLUGIN_ID, |
| IStatus.ERROR, fEmptySelectionMessage, null); |
| } |
| } |
| |
| updateStatus(status); |
| |
| return status.isOK(); |
| } |
| |
| /* |
| * @see Dialog#cancelPressed |
| */ |
| @Override |
| protected void cancelPressed() { |
| setResult(null); |
| super.cancelPressed(); |
| } |
| |
| /** |
| * Creates a filtered list. |
| * |
| * @param parent the parent composite. |
| * @return returns the filtered list widget. |
| */ |
| @SuppressWarnings("serial") |
| protected FilteredList createFilteredList(Composite parent) { |
| final int flags = SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL |
| | (fIsMultipleSelection ? SWT.MULTI : SWT.SINGLE); |
| |
| final FilteredList list = new FilteredList(parent, flags, fRenderer, |
| fIgnoreCase, fAllowDuplicates, fMatchEmptyString); |
| |
| final GridData data = new GridData(); |
| data.widthHint = convertWidthInCharsToPixels(fWidth); |
| data.heightHint = convertHeightInCharsToPixels(fHeight); |
| data.grabExcessVerticalSpace = true; |
| data.grabExcessHorizontalSpace = true; |
| data.horizontalAlignment = GridData.FILL; |
| data.verticalAlignment = GridData.FILL; |
| list.setLayoutData(data); |
| list.setFont(parent.getFont()); |
| list.setFilter(fFilter == null ? "" : fFilter); //$NON-NLS-1$ |
| |
| list.addSelectionListener(new SelectionListener() { |
| public void widgetDefaultSelected(SelectionEvent e) { |
| handleDefaultSelected(); |
| } |
| |
| public void widgetSelected(SelectionEvent e) { |
| handleWidgetSelected(); |
| } |
| }); |
| |
| fFilteredList = list; |
| |
| return list; |
| } |
| |
| // 3515 |
| private void handleWidgetSelected() { |
| final Object[] newSelection = fFilteredList.getSelection(); |
| |
| if (newSelection.length != fSelection.length) { |
| fSelection = newSelection; |
| handleSelectionChanged(); |
| } else { |
| for (int i = 0; i != newSelection.length; i++) { |
| if (!newSelection[i].equals(fSelection[i])) { |
| fSelection = newSelection; |
| handleSelectionChanged(); |
| break; |
| } |
| } |
| } |
| } |
| |
| private Text createFilterText(Composite parent) { |
| final Text text = new Text(parent, SWT.BORDER); |
| |
| final GridData data = new GridData(); |
| data.grabExcessVerticalSpace = false; |
| data.grabExcessHorizontalSpace = true; |
| data.horizontalAlignment = GridData.FILL; |
| data.verticalAlignment = GridData.BEGINNING; |
| text.setLayoutData(data); |
| text.setFont(parent.getFont()); |
| |
| text.setText(fFilter == null ? "" : fFilter); //$NON-NLS-1$ |
| |
| @SuppressWarnings("serial") |
| final Listener listener = new Listener() { |
| public void handleEvent(Event e) { |
| fFilteredList.setFilter(fFilterText.getText()); |
| } |
| }; |
| text.addListener(SWT.Modify, listener); |
| |
| // RAP [rh] missing Key events |
| // text.addKeyListener(new KeyListener() { |
| // public void keyPressed(KeyEvent e) { |
| // if (e.keyCode == SWT.ARROW_DOWN) { |
| // fFilteredList.setFocus(); |
| // } |
| // } |
| // |
| // public void keyReleased(KeyEvent e) { |
| // } |
| // }); |
| |
| fFilterText = text; |
| |
| return text; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * @see org.eclipse.jface.window.Window#open() |
| */ |
| @Override |
| public int open() { |
| super.open(); |
| return getReturnCode(); |
| } |
| |
| private void accessSuperCreate() { |
| super.create(); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * @see org.eclipse.jface.window.Window#create() |
| */ |
| @Override |
| public void create() { |
| |
| BusyIndicator.showWhile(null, new Runnable() { |
| public void run() { |
| accessSuperCreate(); |
| |
| Assert.isNotNull(fFilteredList); |
| |
| if (fFilteredList.isEmpty()) { |
| handleEmptyList(); |
| } else { |
| validateCurrentSelection(); |
| fFilterText.selectAll(); |
| fFilterText.setFocus(); |
| } |
| } |
| }); |
| |
| if (fLastStatus != null) { |
| updateStatus(fLastStatus); |
| } |
| } |
| |
| /** |
| * Handles empty list by disabling widgets. |
| */ |
| protected void handleEmptyList() { |
| fMessage.setEnabled(false); |
| fFilterText.setEnabled(false); |
| fFilteredList.setEnabled(false); |
| updateOkState(); |
| } |
| |
| /** |
| * Update the enablement of the OK button based on whether or not there |
| * is a selection. |
| * |
| */ |
| protected void updateOkState() { |
| final Button okButton = getOkButton(); |
| if (okButton != null) { |
| okButton.setEnabled(getSelectedElements().length != 0); |
| } |
| } |
| |
| /** |
| * Gets the optional validator used to check if the selection is valid. |
| * The validator is invoked whenever the selection changes. |
| * |
| * @return the validator to validate the selection, or <code>null</code> if no validator has been set. |
| * |
| * @since 1.4 |
| */ |
| protected ISelectionStatusValidator getValidator() { |
| return fValidator; |
| } |
| |
| private Object[] fElements; |
| |
| /** |
| * Creates a list selection dialog. |
| * |
| * @param parent the parent widget. |
| * @param renderer the label renderer. |
| */ |
| public ElementListSelectionDialog(Shell parent, ILabelProvider renderer) { |
| super(parent); |
| fRenderer = renderer; |
| } |
| |
| /** |
| * Sets the elements of the list. |
| * |
| * @param elements the elements of the list. |
| */ |
| public void setElements(Object[] elements) { |
| fElements = elements; |
| } |
| |
| /** |
| * Compute the result and return it. |
| */ |
| protected void computeResult() { |
| setResult(Arrays.asList(getSelectedElements())); |
| } |
| |
| /* |
| * @see Dialog#createDialogArea(Composite) |
| */ |
| @Override |
| protected Control createDialogArea(Composite parent) { |
| final Composite contents = (Composite) super.createDialogArea(parent); |
| |
| createMessageArea(contents); |
| createFilterText(contents); |
| createFilteredList(contents); |
| |
| setListElements(fElements); |
| |
| setSelection(getInitialElementSelections().toArray()); |
| |
| return contents; |
| } |
| |
| /** |
| * Returns the filtered list. |
| * |
| * @return the {@link FilteredList} |
| */ |
| public FilteredList getFilteredList() { |
| return fFilteredList; |
| } |
| |
| } |