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eclipse / platform / eclipse.platform.ui / refs/tags/Y20190805-0900 / . / bundles / org.eclipse.ui.workbench / Eclipse UI / org / eclipse / ui / internal / keys / KeysPreferencePage.java
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/*******************************************************************************
* Copyright (c) 2000, 2018 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
* Lars Vogel <Lars.Vogel@gmail.com> - Bug 440810
* Patrik Suzzi <psuzzi@gmail.com> - Bug 489250
*******************************************************************************/
package org.eclipse.ui.internal.keys;
import static org.eclipse.swt.events.SelectionListener.widgetDefaultSelectedAdapter;
import static org.eclipse.swt.events.SelectionListener.widgetSelectedAdapter;
import com.ibm.icu.text.Collator;
import com.ibm.icu.text.MessageFormat;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.ResourceBundle;
import java.util.Set;
import org.eclipse.core.commands.Category;
import org.eclipse.core.commands.Command;
import org.eclipse.core.commands.CommandManager;
import org.eclipse.core.commands.ParameterizedCommand;
import org.eclipse.core.commands.common.NotDefinedException;
import org.eclipse.core.commands.contexts.Context;
import org.eclipse.core.commands.contexts.ContextManager;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.SafeRunner;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.bindings.Binding;
import org.eclipse.jface.bindings.BindingManager;
import org.eclipse.jface.bindings.Scheme;
import org.eclipse.jface.bindings.TriggerSequence;
import org.eclipse.jface.bindings.keys.KeyBinding;
import org.eclipse.jface.bindings.keys.KeySequence;
import org.eclipse.jface.bindings.keys.KeySequenceText;
import org.eclipse.jface.bindings.keys.KeyStroke;
import org.eclipse.jface.contexts.IContextIds;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.preference.PreferencePage;
import org.eclipse.jface.util.SafeRunnable;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.events.FocusListener;
import org.eclipse.swt.events.MouseAdapter;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.TabFolder;
import org.eclipse.swt.widgets.TabItem;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.activities.IActivityManager;
import org.eclipse.ui.commands.ICommandService;
import org.eclipse.ui.contexts.IContextService;
import org.eclipse.ui.internal.IPreferenceConstants;
import org.eclipse.ui.internal.IWorkbenchHelpContextIds;
import org.eclipse.ui.internal.WorkbenchPlugin;
import org.eclipse.ui.internal.misc.StatusUtil;
import org.eclipse.ui.internal.util.PrefUtil;
import org.eclipse.ui.internal.util.Util;
import org.eclipse.ui.keys.IBindingService;
import org.eclipse.ui.statushandlers.StatusManager;
/**
* The preference page for defining keyboard shortcuts. While some of its
* underpinning have been made generic to "bindings" rather than "key bindings",
* it will still take some work to remove the link entirely.
*
* @since 3.0
*/
public final class KeysPreferencePage extends PreferencePage implements IWorkbenchPreferencePage {
/**
* A selection listener to be used on the columns in the table on the view tab.
* This selection listener modifies the sort order so that the appropriate
* column is in the first position.
*
* @since 3.1
*/
private class SortOrderSelectionListener extends SelectionAdapter {
/**
* The column to be put in the first position. This value should be one of the
* constants defined by <code>SORT_COLUMN_</code>.
*/
private final int columnSelected;
/**
* Constructs a new instance of <code>SortOrderSelectionListener</code>.
*
* @param columnSelected The column to be given first priority in the sort
* order; this value should be one of the constants
* defined as <code>SORT_COLUMN_</code>.
*/
private SortOrderSelectionListener(final int columnSelected) {
this.columnSelected = columnSelected;
}
@Override
public void widgetSelected(SelectionEvent e) {
// Change the column titles.
final int oldSortIndex = sortOrder[0];
final TableColumn oldSortColumn = tableBindings.getColumn(oldSortIndex);
oldSortColumn.setText(UNSORTED_COLUMN_NAMES[oldSortIndex]);
final TableColumn newSortColumn = tableBindings.getColumn(columnSelected);
newSortColumn.setText(SORTED_COLUMN_NAMES[columnSelected]);
// Change the sort order.
boolean columnPlaced = false;
boolean enoughRoom = false;
int bumpedColumn = -1;
for (int i = 0; i < sortOrder.length; i++) {
if (sortOrder[i] == columnSelected) {
/*
* We've found the place where the column existing in the old sort order. No
* matter what at this point, we have completed the reshuffling.
*/
enoughRoom = true;
if (bumpedColumn != -1) {
// We have already started bumping things around, so
// drop the last bumped column here.
sortOrder[i] = bumpedColumn;
} else {
// The order has not changed.
columnPlaced = true;
}
break;
} else if (columnPlaced) {
// We are currently bumping, so just bump another.
int temp = sortOrder[i];
sortOrder[i] = bumpedColumn;
bumpedColumn = temp;
} else {
/*
* We are not currently bumping, so drop the column and start bumping.
*/
bumpedColumn = sortOrder[i];
sortOrder[i] = columnSelected;
columnPlaced = true;
}
}
// Grow the sort order.
if (!enoughRoom) {
final int[] newSortOrder = new int[sortOrder.length + 1];
System.arraycopy(sortOrder, 0, newSortOrder, 0, sortOrder.length);
newSortOrder[sortOrder.length] = bumpedColumn;
sortOrder = newSortOrder;
}
// Update the view tab.
updateViewTab();
}
}
/**
* The data key for the binding stored on an SWT widget. The key is a
* fully-qualified name, but in reverse order. This is so that the equals method
* will detect misses faster.
*/
private static final String BINDING_KEY = "Binding.bindings.jface.eclipse.org"; //$NON-NLS-1$
/**
* The image associate with a binding that exists as part of the system
* definition.
*/
private static final Image IMAGE_BLANK = ImageFactory.getImage("blank"); //$NON-NLS-1$
/**
* The image associated with a binding changed by the user.
*/
private static final Image IMAGE_CHANGE = ImageFactory.getImage("change"); //$NON-NLS-1$
/**
* The data key at which the <code>Binding</code> instance for a table item is
* stored.
*/
private static final String ITEM_DATA_KEY = "org.eclipse.jface.bindings"; //$NON-NLS-1$
/**
* The number of items to show in the combo boxes.
*/
private static final int ITEMS_TO_SHOW = 9;
/**
* The resource bundle from which translations can be retrieved.
*/
private static final ResourceBundle RESOURCE_BUNDLE = ResourceBundle.getBundle(KeysPreferencePage.class.getName());
/**
* The total number of columns on the view tab.
*/
private static final int VIEW_TOTAL_COLUMNS = 4;
/**
* The translated names for the columns when they are the primary sort key
* (e.g., ">Category<").
*/
private static final String[] SORTED_COLUMN_NAMES = new String[VIEW_TOTAL_COLUMNS];
/**
* The index of the modify tab.
*
* @since 3.1
*/
private static final int TAB_INDEX_MODIFY = 1;
/**
* The translated names for the columns when they are not the primary sort key
* (e.g., "Category").
*/
private static final String[] UNSORTED_COLUMN_NAMES = new String[VIEW_TOTAL_COLUMNS];
/**
* The index of the column on the view tab containing the category name.
*/
private static final int VIEW_CATEGORY_COLUMN_INDEX = 0;
/**
* The index of the column on the view tab containing the command name.
*/
private static final int VIEW_COMMAND_COLUMN_INDEX = 1;
/**
* The index of the column on the view tab containing the context name.
*/
private static final int VIEW_CONTEXT_COLUMN_INDEX = 3;
/**
* The index of the column on the view tab containing the key sequence.
*/
private static final int VIEW_KEY_SEQUENCE_COLUMN_INDEX = 2;
static {
UNSORTED_COLUMN_NAMES[VIEW_CATEGORY_COLUMN_INDEX] = Util.translateString(RESOURCE_BUNDLE,
"tableColumnCategory"); //$NON-NLS-1$
UNSORTED_COLUMN_NAMES[VIEW_COMMAND_COLUMN_INDEX] = Util.translateString(RESOURCE_BUNDLE, "tableColumnCommand"); //$NON-NLS-1$
UNSORTED_COLUMN_NAMES[VIEW_KEY_SEQUENCE_COLUMN_INDEX] = Util.translateString(RESOURCE_BUNDLE,
"tableColumnKeySequence"); //$NON-NLS-1$
UNSORTED_COLUMN_NAMES[VIEW_CONTEXT_COLUMN_INDEX] = Util.translateString(RESOURCE_BUNDLE, "tableColumnContext"); //$NON-NLS-1$
SORTED_COLUMN_NAMES[VIEW_CATEGORY_COLUMN_INDEX] = Util.translateString(RESOURCE_BUNDLE,
"tableColumnCategorySorted"); //$NON-NLS-1$
SORTED_COLUMN_NAMES[VIEW_COMMAND_COLUMN_INDEX] = Util.translateString(RESOURCE_BUNDLE,
"tableColumnCommandSorted"); //$NON-NLS-1$
SORTED_COLUMN_NAMES[VIEW_KEY_SEQUENCE_COLUMN_INDEX] = Util.translateString(RESOURCE_BUNDLE,
"tableColumnKeySequenceSorted"); //$NON-NLS-1$
SORTED_COLUMN_NAMES[VIEW_CONTEXT_COLUMN_INDEX] = Util.translateString(RESOURCE_BUNDLE,
"tableColumnContextSorted"); //$NON-NLS-1$
}
/**
* The workbench's activity manager. This activity manager is used to see if
* certain commands should be filtered from the user interface.
*/
private IActivityManager activityManager;
/**
* The workbench's binding service. This binding service is used to access the
* current set of bindings, and to persist changes.
*/
private IBindingService bindingService;
/**
* The add button located on the bottom left of the preference page. This button
* adds the current trigger sequence to the currently selected command.
*/
private Button buttonAdd;
/**
* The remove button located on the bottom left of the preference page. This
* button removes the current trigger sequence from the current command.
*/
private Button buttonRemove;
/**
* The restore button located on the bottom left of the preference page. This
* button attempts to restore the currently trigger sequence to its initial
* (i.e., Binding.SYSTEM) state -- undoing all user modifications.
*/
private Button buttonRestore;
/**
* A map of all the category identifiers indexed by the names that appear in the
* user interface. This look-up table is built during initialization.
*/
private Map<String, String> categoryIdsByUniqueName;
/**
* A map of all the category names in the user interface indexed by their
* identifiers. This look-up table is built during initialization.
*/
private Map<String, String> categoryUniqueNamesById;
/**
* The combo box containing the list of all categories for commands.
*/
private Combo comboCategory;
/**
* The combo box containing the list of commands relevent for the currently
* selected category.
*/
private Combo comboCommand;
/**
* The combo box containing the list of contexts in the system.
*/
private Combo comboContext;
/**
* The combo box containing the list of schemes in the system.
*/
private Combo comboScheme;
/**
* A map of all the command identifiers indexed by the categories to which they
* belong. This look-up table is built during initialization.
*/
private Map<String, Set<String>> commandIdsByCategoryId;
/**
* The parameterized commands corresponding to the current contents of
* <code>comboCommand</code>. The commands in this array are in the same order
* as in the combo. This value can be <code>null</code> if nothing is selected
* in the combo.
*/
private ParameterizedCommand[] commands = null;
/**
* The workbench's command service. This command service is used to access the
* list of commands.
*/
private ICommandService commandService;
/**
* A map of all the context identifiers indexed by the names that appear in the
* user interface. This look-up table is built during initialization.
*/
private Map<String, String> contextIdsByUniqueName;
/**
* The workbench's context service. This context service is used to access the
* list of contexts.
*/
private IContextService contextService;
/**
* A map of all the category names in the user interface indexed by their
* identifiers. This look-up table is built during initialization.
*/
private Map<String, String> contextUniqueNamesById;
/**
* The workbench's help system. This is used to register the page with the help
* system.
*
* TODO Add a help context
*/
// private IWorkbenchHelpSystem helpSystem;
/**
* This is the label next to the table showing the bindings matching a
* particular command. The label is disabled if there isn't a selected command
* identifier.
*/
private Label labelBindingsForCommand;
/**
* This is the label next to the table showing the bindings matching a
* particular trigger sequence. The label is disabled if there isn't a current
* key sequence.
*/
private Label labelBindingsForTriggerSequence;
/**
* The label next to the context combo box. This label indicates whether the
* context is a child of another context. If the current context is not a child,
* then this label is blank.
*/
private Label labelContextExtends;
/**
* The label next to the scheme combo box. This label indicates whether the
* scheme is a child of another scheme. If the current scheme is not a child,
* then this label is blank.
*/
private Label labelSchemeExtends;
/**
* A binding manager local to this preference page. When the page is
* initialized, the current bindings are read out from the binding service and
* placed in this manager. This manager is then updated as the user makes
* changes. When the user has finished, the contents of this manager are
* compared with the contents of the binding service. The changes are then
* persisted.
*/
private final BindingManager localChangeManager = new BindingManager(new ContextManager(), new CommandManager());
/**
* A map of all the scheme identifiers indexed by the names that appear in the
* user interface. This look-up table is built during initialization.
*/
private Map<String, String> schemeIdsByUniqueName;
/**
* A map of all the scheme names in the user interface indexed by their
* identifiers. This look-up table is built during initialization.
*/
private Map<String, String> schemeUniqueNamesById;
/**
* The sort order to be used on the view tab to display all of the key bindings.
* This sort order can be changed by the user. This array is never
* <code>null</code>, but may be empty.
*/
private int[] sortOrder = { VIEW_CATEGORY_COLUMN_INDEX, VIEW_COMMAND_COLUMN_INDEX, VIEW_KEY_SEQUENCE_COLUMN_INDEX,
VIEW_CONTEXT_COLUMN_INDEX };
/**
* The top-most tab folder for the preference page -- containing a view and a
* modify tab.
*/
private TabFolder tabFolder;
/**
* A table of the key bindings currently defined. This table appears on the view
* tab; it is intended to be an easy way for users to learn the key bindings in
* Eclipse. This value is only <code>null</code> until the controls are first
* created.
*/
private Table tableBindings;
/**
* The table containing all of the bindings matching the selected command.
*/
private Table tableBindingsForCommand;
/**
* The table containing all of the bindings matching the current trigger
* sequence.
*/
private Table tableBindingsForTriggerSequence;
/**
* The text widget where keys are entered. This widget is managed by
* <code>textTriggerSequenceManager</code>, which provides its special
* behaviour.
*/
private Text textTriggerSequence;
/**
* The manager for the text widget that traps incoming key events. This manager
* should be used to access the widget, rather than accessing the widget
* directly.
*/
private KeySequenceText textTriggerSequenceManager;
@Override
public void applyData(Object data) {
if (data instanceof Binding) {
editBinding((Binding) data);
}
}
@Override
protected Control createContents(final Composite parent) {
PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, IWorkbenchHelpContextIds.KEYS_PREFERENCE_PAGE);
tabFolder = new TabFolder(parent, SWT.NULL);
// View tab
final TabItem viewTab = new TabItem(tabFolder, SWT.NULL);
viewTab.setText(Util.translateString(RESOURCE_BUNDLE, "viewTab.Text")); //$NON-NLS-1$
viewTab.setControl(createViewTab(tabFolder));
// Modify tab
final TabItem modifyTab = new TabItem(tabFolder, SWT.NULL);
modifyTab.setText(Util.translateString(RESOURCE_BUNDLE, "modifyTab.Text")); //$NON-NLS-1$
modifyTab.setControl(createModifyTab(tabFolder));
// Do some fancy stuff.
applyDialogFont(tabFolder);
final IPreferenceStore store = getPreferenceStore();
final int selectedTab = store.getInt(IPreferenceConstants.KEYS_PREFERENCE_SELECTED_TAB);
if ((tabFolder.getItemCount() > selectedTab) && (selectedTab > 0)) {
tabFolder.setSelection(selectedTab);
}
return tabFolder;
}
/**
* Creates the tab that allows the user to change the keyboard shortcuts.
*
* @param parent The tab folder in which the tab should be created; must not be
* <code>null</code>.
* @return The composite which represents the contents of the tab; never
* <code>null</code>.
*/
private Composite createModifyTab(final TabFolder parent) {
final Composite composite = new Composite(parent, SWT.NULL);
composite.setLayout(new GridLayout());
GridData gridData = new GridData(GridData.FILL_BOTH);
composite.setLayoutData(gridData);
final Composite compositeKeyConfiguration = new Composite(composite, SWT.NULL);
GridLayout gridLayout = new GridLayout();
gridLayout.numColumns = 3;
compositeKeyConfiguration.setLayout(gridLayout);
gridData = new GridData(GridData.FILL_HORIZONTAL);
compositeKeyConfiguration.setLayoutData(gridData);
final Label labelKeyConfiguration = new Label(compositeKeyConfiguration, SWT.LEFT);
labelKeyConfiguration.setText(Util.translateString(RESOURCE_BUNDLE, "labelScheme")); //$NON-NLS-1$
comboScheme = new Combo(compositeKeyConfiguration, SWT.READ_ONLY);
gridData = new GridData();
gridData.widthHint = 200;
comboScheme.setLayoutData(gridData);
comboScheme.setVisibleItemCount(ITEMS_TO_SHOW);
comboScheme.addSelectionListener(widgetSelectedAdapter(e -> selectedComboScheme()));
labelSchemeExtends = new Label(compositeKeyConfiguration, SWT.LEFT);
gridData = new GridData(GridData.FILL_HORIZONTAL);
labelSchemeExtends.setLayoutData(gridData);
final Control spacer = new Composite(composite, SWT.NULL);
gridData = new GridData();
gridData.heightHint = 10;
gridData.widthHint = 10;
spacer.setLayoutData(gridData);
final Group groupCommand = new Group(composite, SWT.SHADOW_NONE);
gridLayout = new GridLayout();
gridLayout.numColumns = 3;
groupCommand.setLayout(gridLayout);
gridData = new GridData(GridData.FILL_BOTH);
groupCommand.setLayoutData(gridData);
groupCommand.setText(Util.translateString(RESOURCE_BUNDLE, "groupCommand")); //$NON-NLS-1$
final Label labelCategory = new Label(groupCommand, SWT.LEFT);
gridData = new GridData();
labelCategory.setLayoutData(gridData);
labelCategory.setText(Util.translateString(RESOURCE_BUNDLE, "labelCategory")); //$NON-NLS-1$
comboCategory = new Combo(groupCommand, SWT.READ_ONLY);
gridData = new GridData();
gridData.horizontalSpan = 2;
gridData.widthHint = 200;
comboCategory.setLayoutData(gridData);
comboCategory.setVisibleItemCount(ITEMS_TO_SHOW);
comboCategory.addSelectionListener(widgetSelectedAdapter(e -> update()));
final Label labelCommand = new Label(groupCommand, SWT.LEFT);
gridData = new GridData();
labelCommand.setLayoutData(gridData);
labelCommand.setText(Util.translateString(RESOURCE_BUNDLE, "labelCommand")); //$NON-NLS-1$
comboCommand = new Combo(groupCommand, SWT.READ_ONLY);
gridData = new GridData();
gridData.horizontalSpan = 2;
gridData.widthHint = 300;
comboCommand.setLayoutData(gridData);
comboCommand.setVisibleItemCount(9);
comboCommand.addSelectionListener(widgetSelectedAdapter(e -> update()));
labelBindingsForCommand = new Label(groupCommand, SWT.LEFT);
gridData = new GridData(GridData.VERTICAL_ALIGN_BEGINNING);
gridData.verticalAlignment = GridData.FILL_VERTICAL;
labelBindingsForCommand.setLayoutData(gridData);
labelBindingsForCommand.setText(Util.translateString(RESOURCE_BUNDLE, "labelAssignmentsForCommand")); //$NON-NLS-1$
tableBindingsForCommand = new Table(groupCommand,
SWT.BORDER | SWT.FULL_SELECTION | SWT.H_SCROLL | SWT.V_SCROLL);
tableBindingsForCommand.setHeaderVisible(true);
gridData = new GridData(GridData.FILL_BOTH);
gridData.heightHint = 60;
gridData.horizontalSpan = 2;
boolean isMac = org.eclipse.jface.util.Util.isMac();
gridData.widthHint = isMac ? 620 : 520;
tableBindingsForCommand.setLayoutData(gridData);
TableColumn tableColumnDelta = new TableColumn(tableBindingsForCommand, SWT.NULL, 0);
tableColumnDelta.setResizable(false);
tableColumnDelta.setText(Util.ZERO_LENGTH_STRING);
tableColumnDelta.setWidth(20);
TableColumn tableColumnContext = new TableColumn(tableBindingsForCommand, SWT.NULL, 1);
tableColumnContext.setResizable(true);
tableColumnContext.setText(Util.translateString(RESOURCE_BUNDLE, "tableColumnContext")); //$NON-NLS-1$
tableColumnContext.pack();
tableColumnContext.setWidth(200);
final TableColumn tableColumnKeySequence = new TableColumn(tableBindingsForCommand, SWT.NULL, 2);
tableColumnKeySequence.setResizable(true);
tableColumnKeySequence.setText(Util.translateString(RESOURCE_BUNDLE, "tableColumnKeySequence")); //$NON-NLS-1$
tableColumnKeySequence.pack();
tableColumnKeySequence.setWidth(300);
tableBindingsForCommand.addMouseListener(new MouseAdapter() {
@Override
public void mouseDoubleClick(MouseEvent mouseEvent) {
update();
}
});
tableBindingsForCommand
.addSelectionListener(widgetSelectedAdapter(selectionEvent -> selectedTableBindingsForCommand()));
final Group groupKeySequence = new Group(composite, SWT.SHADOW_NONE);
gridLayout = new GridLayout();
gridLayout.numColumns = 4;
groupKeySequence.setLayout(gridLayout);
gridData = new GridData(GridData.FILL_BOTH);
groupKeySequence.setLayoutData(gridData);
groupKeySequence.setText(Util.translateString(RESOURCE_BUNDLE, "groupKeySequence")); //$NON-NLS-1$
final Label labelKeySequence = new Label(groupKeySequence, SWT.LEFT);
gridData = new GridData();
labelKeySequence.setLayoutData(gridData);
labelKeySequence.setText(Util.translateString(RESOURCE_BUNDLE, "labelKeySequence")); //$NON-NLS-1$
// The text widget into which the key strokes will be entered.
textTriggerSequence = new Text(groupKeySequence, SWT.BORDER);
// On MacOS X, this font will be changed by KeySequenceText
textTriggerSequence.setFont(groupKeySequence.getFont());
gridData = new GridData();
gridData.horizontalSpan = 2;
gridData.widthHint = 300;
textTriggerSequence.setLayoutData(gridData);
textTriggerSequence.addModifyListener(e -> update());
textTriggerSequence.addFocusListener(new FocusListener() {
@Override
public void focusGained(FocusEvent e) {
bindingService.setKeyFilterEnabled(false);
}
@Override
public void focusLost(FocusEvent e) {
bindingService.setKeyFilterEnabled(true);
}
});
textTriggerSequence.addDisposeListener(e -> {
if (!bindingService.isKeyFilterEnabled()) {
bindingService.setKeyFilterEnabled(true);
}
});
// The manager for the key sequence text widget.
textTriggerSequenceManager = new KeySequenceText(textTriggerSequence);
textTriggerSequenceManager.setKeyStrokeLimit(4);
// Button for adding trapped key strokes
final Button buttonAddKey = new Button(groupKeySequence, SWT.LEFT | SWT.ARROW);
buttonAddKey.setToolTipText(Util.translateString(RESOURCE_BUNDLE, "buttonAddKey.ToolTipText")); //$NON-NLS-1$
gridData = new GridData();
gridData.heightHint = comboCategory.getTextHeight();
buttonAddKey.setLayoutData(gridData);
// Arrow buttons aren't normally added to the tab list. Let's fix that.
final Control[] tabStops = groupKeySequence.getTabList();
final ArrayList<Control> newTabStops = new ArrayList<>();
for (Control tabStop : tabStops) {
newTabStops.add(tabStop);
if (textTriggerSequence.equals(tabStop)) {
newTabStops.add(buttonAddKey);
}
}
final Control[] newTabStopArray = newTabStops.toArray(new Control[newTabStops.size()]);
groupKeySequence.setTabList(newTabStopArray);
// Construct the menu to attach to the above button.
final Menu menuButtonAddKey = new Menu(buttonAddKey);
final Iterator<KeyStroke> trappedKeyItr = KeySequenceText.TRAPPED_KEYS.iterator();
while (trappedKeyItr.hasNext()) {
final KeyStroke trappedKey = trappedKeyItr.next();
final MenuItem menuItem = new MenuItem(menuButtonAddKey, SWT.PUSH);
menuItem.setText(trappedKey.format());
menuItem.addSelectionListener(widgetSelectedAdapter(e -> {
textTriggerSequenceManager.insert(trappedKey);
textTriggerSequence.setFocus();
textTriggerSequence.setSelection(textTriggerSequence.getTextLimit());
}));
}
buttonAddKey.addSelectionListener(widgetSelectedAdapter(selectionEvent -> {
Point buttonLocation = buttonAddKey.getLocation();
buttonLocation = groupKeySequence.toDisplay(buttonLocation.x, buttonLocation.y);
Point buttonSize = buttonAddKey.getSize();
menuButtonAddKey.setLocation(buttonLocation.x, buttonLocation.y + buttonSize.y);
menuButtonAddKey.setVisible(true);
}));
labelBindingsForTriggerSequence = new Label(groupKeySequence, SWT.LEFT);
gridData = new GridData(GridData.VERTICAL_ALIGN_BEGINNING);
gridData.verticalAlignment = GridData.FILL_VERTICAL;
labelBindingsForTriggerSequence.setLayoutData(gridData);
labelBindingsForTriggerSequence
.setText(Util.translateString(RESOURCE_BUNDLE, "labelAssignmentsForKeySequence")); //$NON-NLS-1$
tableBindingsForTriggerSequence = new Table(groupKeySequence,
SWT.BORDER | SWT.FULL_SELECTION | SWT.H_SCROLL | SWT.V_SCROLL);
tableBindingsForTriggerSequence.setHeaderVisible(true);
gridData = new GridData(GridData.FILL_BOTH);
gridData.heightHint = 60;
gridData.horizontalSpan = 3;
gridData.widthHint = isMac ? 620 : 520;
tableBindingsForTriggerSequence.setLayoutData(gridData);
tableColumnDelta = new TableColumn(tableBindingsForTriggerSequence, SWT.NULL, 0);
tableColumnDelta.setResizable(false);
tableColumnDelta.setText(Util.ZERO_LENGTH_STRING);
tableColumnDelta.setWidth(20);
tableColumnContext = new TableColumn(tableBindingsForTriggerSequence, SWT.NULL, 1);
tableColumnContext.setResizable(true);
tableColumnContext.setText(Util.translateString(RESOURCE_BUNDLE, "tableColumnContext")); //$NON-NLS-1$
tableColumnContext.pack();
tableColumnContext.setWidth(200);
final TableColumn tableColumnCommand = new TableColumn(tableBindingsForTriggerSequence, SWT.NULL, 2);
tableColumnCommand.setResizable(true);
tableColumnCommand.setText(Util.translateString(RESOURCE_BUNDLE, "tableColumnCommand")); //$NON-NLS-1$
tableColumnCommand.pack();
tableColumnCommand.setWidth(300);
tableBindingsForTriggerSequence.addMouseListener(new MouseAdapter() {
@Override
public void mouseDoubleClick(MouseEvent mouseEvent) {
update();
}
});
tableBindingsForTriggerSequence.addSelectionListener(
widgetSelectedAdapter(selectionEvent -> selectedTableBindingsForTriggerSequence()));
final Composite compositeContext = new Composite(composite, SWT.NULL);
gridLayout = new GridLayout();
gridLayout.numColumns = 3;
compositeContext.setLayout(gridLayout);
gridData = new GridData(GridData.FILL_HORIZONTAL);
compositeContext.setLayoutData(gridData);
final Label labelContext = new Label(compositeContext, SWT.LEFT);
labelContext.setText(Util.translateString(RESOURCE_BUNDLE, "labelContext")); //$NON-NLS-1$
comboContext = new Combo(compositeContext, SWT.READ_ONLY);
gridData = new GridData();
gridData.widthHint = 250;
comboContext.setLayoutData(gridData);
comboContext.setVisibleItemCount(ITEMS_TO_SHOW);
comboContext.addSelectionListener(widgetSelectedAdapter(e -> update()));
labelContextExtends = new Label(compositeContext, SWT.LEFT);
gridData = new GridData(GridData.FILL_HORIZONTAL);
labelContextExtends.setLayoutData(gridData);
final Composite compositeButton = new Composite(composite, SWT.NULL);
gridLayout = new GridLayout();
gridLayout.marginHeight = 20;
gridLayout.marginWidth = 0;
gridLayout.numColumns = 3;
compositeButton.setLayout(gridLayout);
gridData = new GridData();
compositeButton.setLayoutData(gridData);
buttonAdd = new Button(compositeButton, SWT.CENTER | SWT.PUSH);
gridData = new GridData();
int widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
buttonAdd.setText(Util.translateString(RESOURCE_BUNDLE, "buttonAdd")); //$NON-NLS-1$
gridData.widthHint = Math.max(widthHint, buttonAdd.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x) + 5;
buttonAdd.setLayoutData(gridData);
buttonAdd.addSelectionListener(widgetSelectedAdapter(selectionEvent -> selectedButtonAdd()));
buttonRemove = new Button(compositeButton, SWT.CENTER | SWT.PUSH);
gridData = new GridData();
widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
buttonRemove.setText(Util.translateString(RESOURCE_BUNDLE, "buttonRemove")); //$NON-NLS-1$
gridData.widthHint = Math.max(widthHint, buttonRemove.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x) + 5;
buttonRemove.setLayoutData(gridData);
buttonRemove.addSelectionListener(widgetSelectedAdapter(selectionEvent -> selectedButtonRemove()));
buttonRestore = new Button(compositeButton, SWT.CENTER | SWT.PUSH);
gridData = new GridData();
widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
buttonRestore.setText(Util.translateString(RESOURCE_BUNDLE, "buttonRestore")); //$NON-NLS-1$
gridData.widthHint = Math.max(widthHint, buttonRestore.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x) + 5;
buttonRestore.setLayoutData(gridData);
buttonRestore.addSelectionListener(widgetSelectedAdapter(selectionEvent -> selectedButtonRestore()));
return composite;
}
/**
* Creates a tab on the main page for displaying an uneditable list of the
* current key bindings. This is intended as a discovery tool for new users. It
* shows all of the key bindings for the current key configuration, platform and
* locale.
*
* @param parent The tab folder in which the tab should be created; must not be
* <code>null</code>.
* @return The newly created composite containing all of the controls; never
* <code>null</code>.
* @since 3.1
*/
private Composite createViewTab(final TabFolder parent) {
GridData gridData = null;
int widthHint;
// Create the composite for the tab.
final Composite composite = new Composite(parent, SWT.NONE);
composite.setLayoutData(new GridData(GridData.FILL_BOTH));
composite.setLayout(new GridLayout());
// Place a table inside the tab.
tableBindings = new Table(composite, SWT.BORDER | SWT.FULL_SELECTION | SWT.H_SCROLL | SWT.V_SCROLL);
tableBindings.setHeaderVisible(true);
gridData = new GridData(GridData.FILL_BOTH);
gridData.heightHint = 400;
gridData.horizontalSpan = 2;
tableBindings.setLayoutData(gridData);
final TableColumn tableColumnCategory = new TableColumn(tableBindings, SWT.NONE, VIEW_CATEGORY_COLUMN_INDEX);
tableColumnCategory.setText(SORTED_COLUMN_NAMES[VIEW_CATEGORY_COLUMN_INDEX]);
tableColumnCategory.addSelectionListener(new SortOrderSelectionListener(VIEW_CATEGORY_COLUMN_INDEX));
final TableColumn tableColumnCommand = new TableColumn(tableBindings, SWT.NONE, VIEW_COMMAND_COLUMN_INDEX);
tableColumnCommand.setText(UNSORTED_COLUMN_NAMES[VIEW_COMMAND_COLUMN_INDEX]);
tableColumnCommand.addSelectionListener(new SortOrderSelectionListener(VIEW_COMMAND_COLUMN_INDEX));
final TableColumn tableColumnKeySequence = new TableColumn(tableBindings, SWT.NONE,
VIEW_KEY_SEQUENCE_COLUMN_INDEX);
tableColumnKeySequence.setText(UNSORTED_COLUMN_NAMES[VIEW_KEY_SEQUENCE_COLUMN_INDEX]);
tableColumnKeySequence.addSelectionListener(new SortOrderSelectionListener(VIEW_KEY_SEQUENCE_COLUMN_INDEX));
final TableColumn tableColumnContext = new TableColumn(tableBindings, SWT.NONE, VIEW_CONTEXT_COLUMN_INDEX);
tableColumnContext.setText(UNSORTED_COLUMN_NAMES[VIEW_CONTEXT_COLUMN_INDEX]);
tableColumnContext.addSelectionListener(new SortOrderSelectionListener(VIEW_CONTEXT_COLUMN_INDEX));
tableBindings.addSelectionListener(widgetDefaultSelectedAdapter(e -> selectedTableKeyBindings()));
// A composite for the buttons.
final Composite buttonBar = new Composite(composite, SWT.NONE);
buttonBar.setLayout(new GridLayout(2, false));
gridData = new GridData();
gridData.horizontalAlignment = GridData.END;
buttonBar.setLayoutData(gridData);
// A button for editing the current selection.
final Button editButton = new Button(buttonBar, SWT.PUSH);
gridData = new GridData();
widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
editButton.setText(Util.translateString(RESOURCE_BUNDLE, "buttonEdit")); //$NON-NLS-1$
gridData.widthHint = Math.max(widthHint, editButton.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x) + 5;
editButton.setLayoutData(gridData);
editButton.addSelectionListener(new SelectionListener() {
@Override
public void widgetDefaultSelected(final SelectionEvent event) {
selectedTableKeyBindings();
}
@Override
public void widgetSelected(SelectionEvent e) {
widgetDefaultSelected(e);
}
});
// A button for exporting the contents to a file.
final Button buttonExport = new Button(buttonBar, SWT.PUSH);
gridData = new GridData();
widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
buttonExport.setText(Util.translateString(RESOURCE_BUNDLE, "buttonExport")); //$NON-NLS-1$
gridData.widthHint = Math.max(widthHint, buttonExport.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x) + 5;
buttonExport.setLayoutData(gridData);
buttonExport.addSelectionListener(new SelectionListener() {
@Override
public void widgetDefaultSelected(final SelectionEvent event) {
selectedButtonExport();
}
@Override
public void widgetSelected(SelectionEvent e) {
widgetDefaultSelected(e);
}
});
return composite;
}
@Override
protected IPreferenceStore doGetPreferenceStore() {
return PrefUtil.getInternalPreferenceStore();
}
/**
* Allows the user to change the key bindings for a particular command. Switches
* the tab to the modify tab, and then selects the category and command that
* corresponds with the given command name. It then selects the given key
* sequence and gives focus to the key sequence text widget.
*
* @param binding The binding to be edited; if <code>null</code>, then just
* switch to the modify tab. If the <code>binding</code> does not
* correspond to anything in the keys preference page, then this
* also just switches to the modify tab.
* @since 3.1
*/
public void editBinding(final Binding binding) {
// Switch to the modify tab.
tabFolder.setSelection(TAB_INDEX_MODIFY);
// If there is no command name, stop here.
if (binding == null) {
return;
}
/*
* Get the corresponding category and command names. If either is undefined,
* then we can just stop now. We won't be able to find their name.
*/
final ParameterizedCommand command = binding.getParameterizedCommand();
String categoryName = null;
String commandName = null;
try {
categoryName = command.getCommand().getCategory().getName();
commandName = command.getName();
} catch (final NotDefinedException e) {
return; // no name
}
// Update the category combo box.
final String[] categoryNames = comboCategory.getItems();
int i = 0;
for (; i < categoryNames.length; i++) {
if (categoryName.equals(categoryNames[i])) {
break;
}
}
if (i >= comboCategory.getItemCount()) {
// Couldn't find the category, so abort.
return;
}
comboCategory.select(i);
// Update the commands combo box.
updateComboCommand();
// Update the command combo box.
final String[] commandNames = comboCommand.getItems();
int j = 0;
for (; j < commandNames.length; j++) {
if (commandName.equals(commandNames[j])) {
if (comboCommand.getSelectionIndex() != j) {
comboCommand.select(j);
}
break;
}
}
if (j >= comboCommand.getItemCount()) {
// Couldn't find the command, so just select the first and then stop
if (comboCommand.getSelectionIndex() != 0) {
comboCommand.select(0);
}
update();
return;
}
/*
* Update and validate the state of the modify tab in response to these
* selection changes.
*/
update();
// Select the right key binding, if possible.
final TableItem[] items = tableBindingsForCommand.getItems();
int k = 0;
for (; k < items.length; k++) {
final String currentKeySequence = items[k].getText(2);
if (binding.getTriggerSequence().format().equals(currentKeySequence)) {
break;
}
}
if (k < tableBindingsForCommand.getItemCount()) {
tableBindingsForCommand.select(k);
tableBindingsForCommand.notifyListeners(SWT.Selection, null);
textTriggerSequence.setFocus();
}
}
/**
* Returns the identifier for the currently selected category.
*
* @return The selected category; <code>null</code> if none.
*/
private String getCategoryId() {
return !commandIdsByCategoryId.containsKey(null) || comboCategory.getSelectionIndex() > 0
? (String) categoryIdsByUniqueName.get(comboCategory.getText())
: null;
}
/**
* Returns the identifier for the currently selected context.
*
* @return The selected context; <code>null</code> if none.
*/
private String getContextId() {
return comboContext.getSelectionIndex() >= 0 ? (String) contextIdsByUniqueName.get(comboContext.getText())
: null;
}
/**
* Returns the current trigger sequence.
*
* @return The trigger sequence; may be empty, but never <code>null</code>.
*/
private KeySequence getKeySequence() {
return textTriggerSequenceManager.getKeySequence();
}
/**
* Returns the currently-selected fully-parameterized command.
*
* @return The selected fully-parameterized command; <code>null</code> if none.
*/
private ParameterizedCommand getParameterizedCommand() {
final int selectionIndex = comboCommand.getSelectionIndex();
if ((selectionIndex >= 0) && (commands != null) && (selectionIndex < commands.length)) {
return commands[selectionIndex];
}
return null;
}
/**
* Returns the identifier for the currently selected scheme.
*
* @return The selected scheme; <code>null</code> if none.
*/
private String getSchemeId() {
return comboScheme.getSelectionIndex() >= 0 ? (String) schemeIdsByUniqueName.get(comboScheme.getText()) : null;
}
@Override
public void init(final IWorkbench workbench) {
activityManager = workbench.getActivitySupport().getActivityManager();
bindingService = workbench.getService(IBindingService.class);
commandService = workbench.getService(ICommandService.class);
contextService = workbench.getService(IContextService.class);
}
/**
* Checks whether the activity manager knows anything about this command
* identifier. If the activity manager is currently filtering this command, then
* it does not appear in the user interface.
*
* @param command The command which should be checked against the activities;
* must not be <code>null</code>.
* @return <code>true</code> if the command identifier is not filtered;
* <code>false</code> if it is
*/
private boolean isActive(final Command command) {
return activityManager.getIdentifier(command.getId()).isEnabled();
}
/**
* Logs the given exception, and opens an error dialog saying that something
* went wrong. The exception is assumed to have something to do with the
* preference store.
*
* @param exception The exception to be logged; must not be <code>null</code>.
*/
private void logPreferenceStoreException(final Throwable exception) {
final String message = Util.translateString(RESOURCE_BUNDLE, "PreferenceStoreError.Message"); //$NON-NLS-1$
String exceptionMessage = exception.getMessage();
if (exceptionMessage == null) {
exceptionMessage = message;
}
final IStatus status = new Status(IStatus.ERROR, WorkbenchPlugin.PI_WORKBENCH, 0, exceptionMessage, exception);
WorkbenchPlugin.log(message, status);
StatusUtil.handleStatus(message, exception, StatusManager.SHOW);
}
@Override
public boolean performCancel() {
// Save the selected tab for future reference.
persistSelectedTab();
return super.performCancel();
}
@Override
protected void performDefaults() {
// Ask the user to confirm
final String title = Util.translateString(RESOURCE_BUNDLE, "restoreDefaultsMessageBoxText"); //$NON-NLS-1$
final String message = Util.translateString(RESOURCE_BUNDLE, "restoreDefaultsMessageBoxMessage"); //$NON-NLS-1$
final boolean confirmed = MessageDialog.open(MessageDialog.CONFIRM, getShell(), title, message, SWT.SHEET);
if (confirmed) {
// Fix the scheme in the local changes.
final String defaultSchemeId = bindingService.getDefaultSchemeId();
final Scheme defaultScheme = localChangeManager.getScheme(defaultSchemeId);
try {
localChangeManager.setActiveScheme(defaultScheme);
} catch (final NotDefinedException e) {
// At least we tried....
}
// Fix the bindings in the local changes.
final Binding[] currentBindings = localChangeManager.getBindings();
final int currentBindingsLength = currentBindings.length;
final Set<Binding> trimmedBindings = new HashSet<>();
for (int i = 0; i < currentBindingsLength; i++) {
final Binding binding = currentBindings[i];
if (binding.getType() != Binding.USER) {
trimmedBindings.add(binding);
}
}
final Binding[] trimmedBindingArray = trimmedBindings
.toArray(new Binding[trimmedBindings.size()]);
localChangeManager.setBindings(trimmedBindingArray);
// Apply the changes.
try {
bindingService.savePreferences(defaultScheme, trimmedBindingArray);
} catch (final IOException e) {
logPreferenceStoreException(e);
}
}
setScheme(localChangeManager.getActiveScheme()); // update the scheme
update(true);
super.performDefaults();
}
@Override
public boolean performOk() {
// Save the preferences.
try {
bindingService.savePreferences(localChangeManager.getActiveScheme(), localChangeManager.getBindings());
} catch (final IOException e) {
logPreferenceStoreException(e);
}
// Save the selected tab for future reference.
persistSelectedTab();
return super.performOk();
}
/**
* Remembers the currently selected tab for when the preference page next opens.
*/
private void persistSelectedTab() {
final IPreferenceStore store = getPreferenceStore();
store.setValue(IPreferenceConstants.KEYS_PREFERENCE_SELECTED_TAB, tabFolder.getSelectionIndex());
}
/**
* Handles the selection event on the add button. This removes all user-defined
* bindings matching the given key sequence, scheme and context. It then adds a
* new binding with the current selections.
*/
private void selectedButtonAdd() {
final ParameterizedCommand command = getParameterizedCommand();
final String contextId = getContextId();
final String schemeId = getSchemeId();
final KeySequence keySequence = getKeySequence();
localChangeManager.removeBindings(keySequence, schemeId, contextId, null, null, null, Binding.USER);
localChangeManager
.addBinding(new KeyBinding(keySequence, command, schemeId, contextId, null, null, null, Binding.USER));
update(true);
}
/**
* Provides a facility for exporting the viewable list of key bindings to a
* file. Currently, this only supports exporting to a list of comma-separated
* values. The user is prompted for which file should receive our bounty.
*
* @since 3.1
*/
private void selectedButtonExport() {
final FileDialog fileDialog = new FileDialog(getShell(), SWT.SAVE | SWT.SHEET);
fileDialog.setFilterExtensions(new String[] { "*.csv" }); //$NON-NLS-1$
fileDialog.setFilterNames(new String[] { Util.translateString(RESOURCE_BUNDLE, "csvFilterName") }); //$NON-NLS-1$
final String filePath = fileDialog.open();
if (filePath == null) {
return;
}
final SafeRunnable runnable = new SafeRunnable() {
@Override
public void run() throws IOException {
Writer fileWriter = null;
try {
fileWriter = new BufferedWriter(new FileWriter(filePath));
final TableItem[] items = tableBindings.getItems();
final int numColumns = tableBindings.getColumnCount();
for (final TableItem item : items) {
for (int j = 0; j < numColumns; j++) {
String buf = Util.replaceAll(item.getText(j), "\"", //$NON-NLS-1$
"\"\""); //$NON-NLS-1$
fileWriter.write("\"" + buf + "\""); //$NON-NLS-1$//$NON-NLS-2$
if (j < numColumns - 1) {
fileWriter.write(',');
}
}
fileWriter.write(System.getProperty("line.separator")); //$NON-NLS-1$
}
} finally {
if (fileWriter != null) {
try {
fileWriter.close();
} catch (final IOException e) {
// At least I tried.
}
}
}
}
};
SafeRunner.run(runnable);
}
/**
* Handles the selection event on the remove button. This removes all
* user-defined bindings matching the given key sequence, scheme and context. It
* then adds a new deletion binding for the selected trigger sequence.
*/
private void selectedButtonRemove() {
final String contextId = getContextId();
final String schemeId = getSchemeId();
final KeySequence keySequence = getKeySequence();
localChangeManager.removeBindings(keySequence, schemeId, contextId, null, null, null, Binding.USER);
localChangeManager
.addBinding(new KeyBinding(keySequence, null, schemeId, contextId, null, null, null, Binding.USER));
update(true);
}
/**
* Handles the selection event on the restore button. This removes all
* user-defined bindings matching the given key sequence, scheme and context.
*/
private void selectedButtonRestore() {
String contextId = getContextId();
String schemeId = getSchemeId();
KeySequence keySequence = getKeySequence();
localChangeManager.removeBindings(keySequence, schemeId, contextId, null, null, null, Binding.USER);
update(true);
}
/**
* Updates the local managers active scheme, and then updates the interface.
*/
private void selectedComboScheme() {
final String activeSchemeId = getSchemeId();
final Scheme activeScheme = localChangeManager.getScheme(activeSchemeId);
try {
localChangeManager.setActiveScheme(activeScheme);
} catch (final NotDefinedException e) {
// Oh, well.
}
update(true);
}
/**
* Handles the selection event on the table containing the bindings for a
* particular command. This updates the context and trigger sequence based on
* the selected binding.
*/
private void selectedTableBindingsForCommand() {
final int selection = tableBindingsForCommand.getSelectionIndex();
if ((selection >= 0) && (selection < tableBindingsForCommand.getItemCount())) {
final TableItem item = tableBindingsForCommand.getItem(selection);
final KeyBinding binding = (KeyBinding) item.getData(ITEM_DATA_KEY);
setContextId(binding.getContextId());
setKeySequence(binding.getKeySequence());
}
update();
}
/**
* Handles the selection event on the table containing the bindings for a
* particular trigger sequence. This updates the context based on the selected
* binding.
*/
private void selectedTableBindingsForTriggerSequence() {
final int selection = tableBindingsForTriggerSequence.getSelectionIndex();
if ((selection >= 0) && (selection < tableBindingsForTriggerSequence.getItemCount())) {
final TableItem item = tableBindingsForTriggerSequence.getItem(selection);
final Binding binding = (Binding) item.getData(ITEM_DATA_KEY);
setContextId(binding.getContextId());
}
update();
}
/**
* Responds to some kind of trigger on the View tab by taking the current
* selection on the key bindings table and selecting the appropriate items in
* the Modify tab.
*
* @since 3.1
*/
private void selectedTableKeyBindings() {
final int selectionIndex = tableBindings.getSelectionIndex();
if (selectionIndex != -1) {
final TableItem item = tableBindings.getItem(selectionIndex);
final Binding binding = (Binding) item.getData(BINDING_KEY);
editBinding(binding);
} else {
editBinding(null);
}
}
/**
* Changes the selected context name in the context combo box. The context
* selected is either the one matching the identifier provided (if possible), or
* the default context identifier. If no matching name can be found in the
* combo, then the first item is selected.
*
* @param contextId The context identifier for the context to be selected in the
* combo box; may be <code>null</code>.
*/
private void setContextId(final String contextId) {
// Clear the current selection.
comboContext.clearSelection();
comboContext.deselectAll();
// Figure out which name to look for.
String contextName = contextUniqueNamesById.get(contextId);
if (contextName == null) {
contextName = contextUniqueNamesById.get(IContextIds.CONTEXT_ID_WINDOW);
}
if (contextName == null) {
contextName = Util.ZERO_LENGTH_STRING;
}
// Scan the list for the selection we're looking for.
final String[] items = comboContext.getItems();
boolean found = false;
for (int i = 0; i < items.length; i++) {
if (contextName.equals(items[i])) {
comboContext.select(i);
found = true;
break;
}
}
// If we didn't find an item, then set the first item as selected.
if ((!found) && (items.length > 0)) {
comboContext.select(0);
}
}
/**
* Sets the current trigger sequence.
*
* @param keySequence The trigger sequence; may be <code>null</code>.
*/
private void setKeySequence(final KeySequence keySequence) {
textTriggerSequenceManager.setKeySequence(keySequence);
}
/**
* Changes the selection in the command combo box.
*
* @param command The fully-parameterized command to select; may be
* <code>null</code>.
*/
private void setParameterizedCommand(final ParameterizedCommand command) {
int i = 0;
if (commands != null) {
final int commandCount = commands.length;
for (; i < commandCount; i++) {
if (commands[i].equals(command)) {
if ((comboCommand.getSelectionIndex() != i) && (i < comboCommand.getItemCount())) {
comboCommand.select(i);
}
break;
}
}
if ((i >= comboCommand.getItemCount()) && (comboCommand.getSelectionIndex() != 0)) {
comboCommand.select(0);
}
}
}
/**
* Sets the currently selected scheme
*
* @param scheme The scheme to select; may be <code>null</code>.
*/
private void setScheme(final Scheme scheme) {
comboScheme.clearSelection();
comboScheme.deselectAll();
final String schemeUniqueName = schemeUniqueNamesById.get(scheme.getId());
if (schemeUniqueName != null) {
final String items[] = comboScheme.getItems();
for (int i = 0; i < items.length; i++) {
if (schemeUniqueName.equals(items[i])) {
comboScheme.select(i);
break;
}
}
}
}
/**
* Builds the internal look-up tables before allowing the page to become
* visible.
*/
@Override
public void setVisible(final boolean visible) {
if (visible == true) {
Map<String, Set<Context>> contextsByName = new HashMap<>();
for (Iterator<String> iterator = contextService.getDefinedContextIds().iterator(); iterator.hasNext();) {
Context context = contextService.getContext(iterator.next());
try {
String name = context.getName();
Set<Context> contexts = contextsByName.get(name);
if (contexts == null) {
contexts = new HashSet<>();
contextsByName.put(name, contexts);
}
contexts.add(context);
} catch (final NotDefinedException e) {
// Do nothing.
}
}
Map<String, Collection<Command>> commandsByName = new HashMap<>();
for (Iterator<String> iterator = commandService.getDefinedCommandIds().iterator(); iterator.hasNext();) {
Command command = commandService.getCommand(iterator.next());
if (!isActive(command)) {
continue;
}
try {
String name = command.getName();
Collection<Command> commands = commandsByName.get(name);
if (commands == null) {
commands = new HashSet<>();
commandsByName.put(name, commands);
}
commands.add(command);
} catch (NotDefinedException eNotDefined) {
// Do nothing
}
}
// moved here to allow us to remove any empty categories
commandIdsByCategoryId = new HashMap<>();
for (Iterator<String> iterator = commandService.getDefinedCommandIds().iterator(); iterator.hasNext();) {
final Command command = commandService.getCommand(iterator.next());
if (!isActive(command)) {
continue;
}
try {
String categoryId = command.getCategory().getId();
Set<String> commandIds = commandIdsByCategoryId.get(categoryId);
if (commandIds == null) {
commandIds = new HashSet<>();
commandIdsByCategoryId.put(categoryId, commandIds);
}
commandIds.add(command.getId());
} catch (NotDefinedException eNotDefined) {
// Do nothing
}
}
Map<String, Set<Category>> categoriesByName = new HashMap<>();
for (Iterator<String> iterator = commandService.getDefinedCategoryIds().iterator(); iterator.hasNext();) {
Category category = commandService.getCategory(iterator.next());
try {
if (commandIdsByCategoryId.containsKey(category.getId())) {
String name = category.getName();
Set<Category> categories = categoriesByName.get(name);
if (categories == null) {
categories = new HashSet<>();
categoriesByName.put(name, categories);
}
categories.add(category);
}
} catch (NotDefinedException eNotDefined) {
// Do nothing
}
}
Map<String, Set<Scheme>> schemesByName = new HashMap<>();
final Scheme[] definedSchemes = bindingService.getDefinedSchemes();
for (final Scheme scheme : definedSchemes) {
try {
String name = scheme.getName();
Set<Scheme> schemes = schemesByName.get(name);
if (schemes == null) {
schemes = new HashSet<>();
schemesByName.put(name, schemes);
}
schemes.add(scheme);
} catch (final NotDefinedException e) {
// Do nothing.
}
}
contextIdsByUniqueName = new HashMap<>();
contextUniqueNamesById = new HashMap<>();
for (Map.Entry<String, Set<Context>> entry : contextsByName.entrySet()) {
String name = entry.getKey();
Set<Context> contexts = entry.getValue();
Iterator<Context> iterator2 = contexts.iterator();
if (contexts.size() == 1) {
Context context = iterator2.next();
contextIdsByUniqueName.put(name, context.getId());
contextUniqueNamesById.put(context.getId(), name);
} else {
while (iterator2.hasNext()) {
Context context = iterator2.next();
String uniqueName = MessageFormat.format(Util.translateString(RESOURCE_BUNDLE, "uniqueName"), //$NON-NLS-1$
name, context.getId());
contextIdsByUniqueName.put(uniqueName, context.getId());
contextUniqueNamesById.put(context.getId(), uniqueName);
}
}
}
categoryIdsByUniqueName = new HashMap<>();
categoryUniqueNamesById = new HashMap<>();
for (Map.Entry<String, Set<Category>> entry : categoriesByName.entrySet()) {
String name = entry.getKey();
Set<Category> categories = entry.getValue();
Iterator<Category> iterator2 = categories.iterator();
if (categories.size() == 1) {
Category category = iterator2.next();
categoryIdsByUniqueName.put(name, category.getId());
categoryUniqueNamesById.put(category.getId(), name);
} else {
while (iterator2.hasNext()) {
Category category = iterator2.next();
String uniqueName = MessageFormat.format(Util.translateString(RESOURCE_BUNDLE, "uniqueName"), //$NON-NLS-1$
new Object[] { name, category.getId() });
categoryIdsByUniqueName.put(uniqueName, category.getId());
categoryUniqueNamesById.put(category.getId(), uniqueName);
}
}
}
schemeIdsByUniqueName = new HashMap<>();
schemeUniqueNamesById = new HashMap<>();
for (Map.Entry<String, Set<Scheme>> entry : schemesByName.entrySet()) {
String name = entry.getKey();
Set<Scheme> keyConfigurations = entry.getValue();
Iterator<Scheme> iterator2 = keyConfigurations.iterator();
if (keyConfigurations.size() == 1) {
Scheme scheme = iterator2.next();
schemeIdsByUniqueName.put(name, scheme.getId());
schemeUniqueNamesById.put(scheme.getId(), name);
} else {
while (iterator2.hasNext()) {
Scheme scheme = iterator2.next();
String uniqueName = MessageFormat.format(Util.translateString(RESOURCE_BUNDLE, "uniqueName"), //$NON-NLS-1$
new Object[] { name, scheme.getId() });
schemeIdsByUniqueName.put(uniqueName, scheme.getId());
schemeUniqueNamesById.put(scheme.getId(), uniqueName);
}
}
}
Scheme activeScheme = bindingService.getActiveScheme();
// Make an internal copy of the binding manager, for local changes.
try {
for (final Scheme scheme : definedSchemes) {
final Scheme copy = localChangeManager.getScheme(scheme.getId());
copy.define(scheme.getName(), scheme.getDescription(), scheme.getParentId());
}
localChangeManager.setActiveScheme(bindingService.getActiveScheme());
} catch (final NotDefinedException e) {
throw new Error("There is a programmer error in the keys preference page"); //$NON-NLS-1$
}
localChangeManager.setLocale(bindingService.getLocale());
localChangeManager.setPlatform(bindingService.getPlatform());
localChangeManager.setBindings(bindingService.getBindings());
// Populate the category combo box.
List<String> categoryNames = new ArrayList<>(categoryIdsByUniqueName.keySet());
Collections.sort(categoryNames, Collator.getInstance());
if (commandIdsByCategoryId.containsKey(null)) {
categoryNames.add(0, Util.translateString(RESOURCE_BUNDLE, "other")); //$NON-NLS-1$
}
comboCategory.setItems(categoryNames.toArray(new String[categoryNames.size()]));
comboCategory.clearSelection();
comboCategory.deselectAll();
if (commandIdsByCategoryId.containsKey(null) || !categoryNames.isEmpty()) {
comboCategory.select(0);
}
// Populate the scheme combo box.
List<String> schemeNames = new ArrayList<>(schemeIdsByUniqueName.keySet());
Collections.sort(schemeNames, Collator.getInstance());
comboScheme.setItems(schemeNames.toArray(new String[schemeNames.size()]));
setScheme(activeScheme);
// Update the entire page.
update(true);
}
super.setVisible(visible);
}
/**
* Updates the entire preference page -- except the view tab -- based on current
* selection sate. This preference page is written so that everything can be
* made consistent simply by inspecting the state of its widgets. A change is
* triggered by the user, and an event is fired. The event triggers an update.
* It is possible for extra work to be done by this page before calling update.
*/
private void update() {
update(false);
}
/**
* Updates the entire preference page based on current changes. This preference
* page is written so that everything can be made consistent simply by
* inspecting the state of its widgets. A change is triggered by the user, and
* an event is fired. The event triggers an update. It is possible for extra
* work to be done by this page before calling update.
*
* @param updateViewTab Whether the view tab should be updated as well.
*/
private void update(final boolean updateViewTab) {
if (updateViewTab) {
updateViewTab();
}
updateComboCommand();
updateComboContext();
final TriggerSequence triggerSequence = getKeySequence();
updateTableBindingsForTriggerSequence(triggerSequence);
final ParameterizedCommand command = getParameterizedCommand();
updateTableBindingsForCommand(command);
final String contextId = getContextId();
updateSelection(tableBindingsForTriggerSequence, contextId, triggerSequence);
updateSelection(tableBindingsForCommand, contextId, triggerSequence);
updateLabelSchemeExtends();
updateLabelContextExtends();
updateEnabled(triggerSequence, command);
}
/**
* Updates the contents of the commands combo box, based on the current
* selection in the category combo box.
*/
private void updateComboCommand() {
// Remember the current selection, so we can restore it later.
final ParameterizedCommand command = getParameterizedCommand();
// Figure out where command identifiers apply to the selected category.
final String categoryId = getCategoryId();
Set<String> commandIds = commandIdsByCategoryId.get(categoryId);
if (commandIds == null) {
commandIds = Collections.EMPTY_SET;
}
/*
* Generate an array of parameterized commands based on these identifiers. The
* parameterized commands will be sorted based on their names.
*/
List<ParameterizedCommand> commands = new ArrayList<>();
final Iterator<String> commandIdItr = commandIds.iterator();
while (commandIdItr.hasNext()) {
final String currentCommandId = commandIdItr.next();
final Command currentCommand = commandService.getCommand(currentCommandId);
try {
commands.addAll(ParameterizedCommand.generateCombinations(currentCommand));
} catch (final NotDefinedException e) {
// It is safe to just ignore undefined commands.
}
}
// sort the commands with a collator, so they appear in the
// combo correctly
commands = sortParameterizedCommands(commands);
final int commandCount = commands.size();
this.commands = commands.toArray(new ParameterizedCommand[commandCount]);
/*
* Generate an array of command names based on this array of parameterized
* commands.
*/
final String[] commandNames = new String[commandCount];
for (int i = 0; i < commandCount; i++) {
try {
commandNames[i] = this.commands[i].getName();
} catch (final NotDefinedException e) {
throw new Error("Concurrent modification of the command's defined state"); //$NON-NLS-1$
}
}
/*
* Copy the command names into the combo box, but only if they've changed. We do
* this to try to avoid unnecessary calls out to the operating system, as well
* as to defend against bugs in SWT's event mechanism.
*/
final String[] currentItems = comboCommand.getItems();
if (!Arrays.equals(currentItems, commandNames)) {
comboCommand.setItems(commandNames);
}
// Try to restore the selection.
setParameterizedCommand(command);
/*
* Just to be extra careful, make sure that we have a selection at this point.
* This line could probably be removed, but it makes the code a bit more robust.
*/
if ((comboCommand.getSelectionIndex() == -1) && (commandCount > 0)) {
comboCommand.select(0);
}
}
/**
* Sort the commands using the correct language.
*
* @param commands the List of ParameterizedCommands
* @return The sorted List
*/
private List<ParameterizedCommand> sortParameterizedCommands(List<ParameterizedCommand> commands) {
final Collator collator = Collator.getInstance();
// this comparator is based on the ParameterizedCommands#compareTo(*)
// method, but uses the collator.
Comparator<ParameterizedCommand> comparator = (o1, o2) -> {
String name1 = null;
String name2 = null;
try {
name1 = o1.getName();
} catch (NotDefinedException e1) {
return -1;
}
try {
name2 = o2.getName();
} catch (NotDefinedException e2) {
return 1;
}
int rc = collator.compare(name1, name2);
if (rc != 0) {
return rc;
}
String id1 = o1.getId();
String id2 = o2.getId();
return collator.compare(id1, id2);
};
Collections.sort(commands, comparator);
return commands;
}
/**
* Updates the contents of the context combo box, as well as its selection.
*/
private void updateComboContext() {
final String contextId = getContextId();
final Map<String, String> contextIdsByName = new HashMap<>(contextIdsByUniqueName);
final List<String> contextNames = new ArrayList<>(contextIdsByName.keySet());
Collections.sort(contextNames, Collator.getInstance());
comboContext.setItems(contextNames.toArray(new String[contextNames.size()]));
setContextId(contextId);
if (comboContext.getSelectionIndex() == -1 && !contextNames.isEmpty()) {
comboContext.select(0);
}
}
/**
* Updates the enabled state of the various widgets on this page. The decision
* is based on the current trigger sequence and the currently selected command.
*
* @param triggerSequence The current trigger sequence; may be empty, but never
* <code>null</code>.
* @param command The currently selected command, if any;
* <code>null</code> otherwise.
*/
private void updateEnabled(final TriggerSequence triggerSequence, final ParameterizedCommand command) {
final boolean commandSelected = command != null;
labelBindingsForCommand.setEnabled(commandSelected);
tableBindingsForCommand.setEnabled(commandSelected);
final boolean triggerSequenceSelected = !triggerSequence.isEmpty();
labelBindingsForTriggerSequence.setEnabled(triggerSequenceSelected);
tableBindingsForTriggerSequence.setEnabled(triggerSequenceSelected);
/*
* TODO Do some better button enablement.
*/
final boolean buttonsEnabled = commandSelected && triggerSequenceSelected;
buttonAdd.setEnabled(buttonsEnabled);
buttonRemove.setEnabled(buttonsEnabled);
buttonRestore.setEnabled(buttonsEnabled);
}
/**
* Updates the label next to the context that says "extends" if the context is a
* child of another context. If the context is not a child of another context,
* then the label is simply blank.
*/
private void updateLabelContextExtends() {
final String contextId = getContextId();
if (contextId != null) {
final Context context = contextService.getContext(getContextId());
if (context.isDefined()) {
try {
final String parentId = context.getParentId();
if (parentId != null) {
final String name = contextUniqueNamesById.get(parentId);
if (name != null) {
labelContextExtends
.setText(MessageFormat.format(Util.translateString(RESOURCE_BUNDLE, "extends"), //$NON-NLS-1$
name));
return;
}
}
} catch (final NotDefinedException e) {
// Do nothing
}
}
}
labelContextExtends.setText(Util.ZERO_LENGTH_STRING);
}
/**
* Updates the label next to the scheme that says "extends" if the scheme is a
* child of another scheme. If the scheme is not a child of another scheme, then
* the label is simply blank.
*/
private void updateLabelSchemeExtends() {
final String schemeId = getSchemeId();
if (schemeId != null) {
final Scheme scheme = bindingService.getScheme(schemeId);
try {
final String name = schemeUniqueNamesById.get(scheme.getParentId());
if (name != null) {
labelSchemeExtends.setText(MessageFormat.format(Util.translateString(RESOURCE_BUNDLE, "extends"), //$NON-NLS-1$
name));
return;
}
} catch (final NotDefinedException e) {
// Do nothing
}
}
labelSchemeExtends.setText(Util.ZERO_LENGTH_STRING);
}
/**
* Tries to select the correct entry in table based on the currently selected
* context and trigger sequence. If the table hasn't really changed, then this
* method is essentially trying to restore the selection. If it has changed,
* then it is trying to select the most entry based on the context.
*
* @param table The table to be changed; must not be
* <code>null</code>.
* @param contextId The currently selected context; should not be
* <code>null</code>.
* @param triggerSequence The current trigger sequence; should not be
* <code>null</code>.
*/
private void updateSelection(final Table table, final String contextId, final TriggerSequence triggerSequence) {
if (table.getSelectionCount() > 1) {
table.deselectAll();
}
final TableItem[] items = table.getItems();
int selection = -1;
for (int i = 0; i < items.length; i++) {
final Binding binding = (Binding) items[i].getData(ITEM_DATA_KEY);
if ((Objects.equals(contextId, binding.getContextId()))
&& (Objects.equals(triggerSequence, binding.getTriggerSequence()))) {
selection = i;
break;
}
}
if (selection != -1) {
table.select(selection);
}
}
/**
* Updates the contents of the table showing the bindings for the currently
* selected command. The selection is destroyed by this process.
*
* @param parameterizedCommand The currently selected fully-parameterized
* command; may be <code>null</code>.
*/
private void updateTableBindingsForCommand(final ParameterizedCommand parameterizedCommand) {
// Clear the table of existing items.
tableBindingsForCommand.removeAll();
// Add each of the bindings, if the command identifier matches.
final Collection<Binding> bindings = localChangeManager.getActiveBindingsDisregardingContextFlat();
final Iterator<Binding> bindingItr = bindings.iterator();
while (bindingItr.hasNext()) {
final Binding binding = bindingItr.next();
if (!Objects.equals(parameterizedCommand, binding.getParameterizedCommand())) {
continue; // binding does not match
}
final TableItem tableItem = new TableItem(tableBindingsForCommand, SWT.NULL);
tableItem.setData(ITEM_DATA_KEY, binding);
/*
* Set the associated image based on the type of binding. Either it is a user
* binding or a system binding.
*
* TODO Identify more image types.
*/
if (binding.getType() == Binding.SYSTEM) {
tableItem.setImage(0, IMAGE_BLANK);
} else {
tableItem.setImage(0, IMAGE_CHANGE);
}
String contextName = contextUniqueNamesById.get(binding.getContextId());
if (contextName == null) {
contextName = Util.ZERO_LENGTH_STRING;
}
tableItem.setText(1, contextName);
tableItem.setText(2, binding.getTriggerSequence().format());
}
}
/**
* Updates the contents of the table showing the bindings for the current
* trigger sequence. The selection is destroyed by this process.
*
* @param triggerSequence The current trigger sequence; may be <code>null</code>
* or empty.
*/
private void updateTableBindingsForTriggerSequence(final TriggerSequence triggerSequence) {
// Clear the table of its existing items.
tableBindingsForTriggerSequence.removeAll();
// Get the collection of bindings for the current command.
final Map<TriggerSequence, Collection<Binding>> activeBindings = localChangeManager.getActiveBindingsDisregardingContext();
final Collection<Binding> bindings = activeBindings.get(triggerSequence);
if (bindings == null) {
return;
}
// Add each of the bindings.
final Iterator<Binding> bindingItr = bindings.iterator();
while (bindingItr.hasNext()) {
final Binding binding = bindingItr.next();
final Context context = contextService.getContext(binding.getContextId());
final ParameterizedCommand parameterizedCommand = binding.getParameterizedCommand();
final Command command = parameterizedCommand.getCommand();
if ((!context.isDefined()) && (!command.isDefined())) {
continue;
}
final TableItem tableItem = new TableItem(tableBindingsForTriggerSequence, SWT.NULL);
tableItem.setData(ITEM_DATA_KEY, binding);
/*
* Set the associated image based on the type of binding. Either it is a user
* binding or a system binding.
*
* TODO Identify more image types.
*/
if (binding.getType() == Binding.SYSTEM) {
tableItem.setImage(0, IMAGE_BLANK);
} else {
tableItem.setImage(0, IMAGE_CHANGE);
}
try {
tableItem.setText(1, context.getName());
tableItem.setText(2, parameterizedCommand.getName());
} catch (final NotDefinedException e) {
throw new Error(
"Context or command became undefined on a non-UI thread while the UI thread was processing."); //$NON-NLS-1$
}
}
}
/**
* Updates the contents of the view tab. This queries the command manager for a
* list of key sequence binding definitions, and these definitions are then
* added to the table.
*
* @since 3.1
*/
private void updateViewTab() {
// Clear out the existing table contents.
tableBindings.removeAll();
// Get a sorted list of key binding contents.
final List<Binding> bindings = new ArrayList<>(localChangeManager.getActiveBindingsDisregardingContextFlat());
Collections.sort(bindings, new Comparator<Binding>() {
/**
* Compares two instances of <code>Binding</code> based on the current sort
* order.
*
* @param object1 The first object to compare; must be an instance of
* <code>Binding</code> (i.e., not <code>null</code>).
* @param object2 The second object to compare; must be an instance of
* <code>Binding</code> (i.e., not <code>null</code>).
* @return The integer value representing the comparison. The comparison is
* based on the current sort order.
* @since 3.1
*/
@Override
public int compare(final Binding object1, final Binding object2) {
final Binding binding1 = object1;
final Binding binding2 = object2;
/*
* Get the category name, command name, formatted key sequence and context name
* for the first binding.
*/
final Command command1 = binding1.getParameterizedCommand().getCommand();
String categoryName1 = Util.ZERO_LENGTH_STRING;
String commandName1 = Util.ZERO_LENGTH_STRING;
try {
commandName1 = command1.getName();
categoryName1 = command1.getCategory().getName();
} catch (final NotDefinedException e) {
// Just use the zero-length string.
}
final String triggerSequence1 = binding1.getTriggerSequence().format();
final String contextId1 = binding1.getContextId();
String contextName1 = Util.ZERO_LENGTH_STRING;
if (contextId1 != null) {
final Context context = contextService.getContext(contextId1);
try {
contextName1 = context.getName();
} catch (final org.eclipse.core.commands.common.NotDefinedException e) {
// Just use the zero-length string.
}
}
/*
* Get the category name, command name, formatted key sequence and context name
* for the first binding.
*/
final Command command2 = binding2.getParameterizedCommand().getCommand();
String categoryName2 = Util.ZERO_LENGTH_STRING;
String commandName2 = Util.ZERO_LENGTH_STRING;
try {
commandName2 = command2.getName();
categoryName2 = command2.getCategory().getName();
} catch (final org.eclipse.core.commands.common.NotDefinedException e) {
// Just use the zero-length string.
}
final String keySequence2 = binding2.getTriggerSequence().format();
final String contextId2 = binding2.getContextId();
String contextName2 = Util.ZERO_LENGTH_STRING;
if (contextId2 != null) {
final Context context = contextService.getContext(contextId2);
try {
contextName2 = context.getName();
} catch (final org.eclipse.core.commands.common.NotDefinedException e) {
// Just use the zero-length string.
}
}
// Compare the items in the current sort order.
int compare = 0;
for (int element : sortOrder) {
switch (element) {
case VIEW_CATEGORY_COLUMN_INDEX:
compare = Util.compare(categoryName1, categoryName2);
if (compare != 0) {
return compare;
}
break;
case VIEW_COMMAND_COLUMN_INDEX:
compare = Util.compare(commandName1, commandName2);
if (compare != 0) {
return compare;
}
break;
case VIEW_KEY_SEQUENCE_COLUMN_INDEX:
compare = Util.compare(triggerSequence1, keySequence2);
if (compare != 0) {
return compare;
}
break;
case VIEW_CONTEXT_COLUMN_INDEX:
compare = Util.compare(contextName1, contextName2);
if (compare != 0) {
return compare;
}
break;
default:
throw new Error(
"Programmer error: added another sort column without modifying the comparator."); //$NON-NLS-1$
}
}
return compare;
}
/**
* @see Object#equals(java.lang.Object)
*/
@Override
public boolean equals(final Object object) {
return super.equals(object);
}
});
// Add a table item for each item in the list.
final Iterator<Binding> keyBindingItr = bindings.iterator();
while (keyBindingItr.hasNext()) {
final Binding binding = keyBindingItr.next();
// Get the command and category name.
final ParameterizedCommand command = binding.getParameterizedCommand();
String commandName = Util.ZERO_LENGTH_STRING;
String categoryName = Util.ZERO_LENGTH_STRING;
try {
commandName = command.getName();
categoryName = command.getCommand().getCategory().getName();
} catch (final org.eclipse.core.commands.common.NotDefinedException e) {
// Just use the zero-length string.
}
// Ignore items with a meaningless command name.
if ((commandName == null) || (commandName.length() == 0)) {
continue;
}
// Get the context name.
final String contextId = binding.getContextId();
String contextName = Util.ZERO_LENGTH_STRING;
if (contextId != null) {
final Context context = contextService.getContext(contextId);
try {
contextName = context.getName();
} catch (final org.eclipse.core.commands.common.NotDefinedException e) {
// Just use the zero-length string.
}
}
// Create the table item.
final TableItem item = new TableItem(tableBindings, SWT.NONE);
item.setText(VIEW_CATEGORY_COLUMN_INDEX, categoryName);
item.setText(VIEW_COMMAND_COLUMN_INDEX, commandName);
item.setText(VIEW_KEY_SEQUENCE_COLUMN_INDEX, binding.getTriggerSequence().format());
item.setText(VIEW_CONTEXT_COLUMN_INDEX, contextName);
item.setData(BINDING_KEY, binding);
}
// Pack the columns.
for (int i = 0; i < tableBindings.getColumnCount(); i++) {
tableBindings.getColumn(i).pack();
}
}
}