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/******************************************************************************* |
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* Copyright (c) 2009 Eric Rizzo and others. |
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* All rights reserved. This program and the accompanying materials |
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* are made available under the terms of the Eclipse Public License v1.0 |
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* which accompanies this distribution, and is available at |
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* http://www.eclipse.org/legal/epl-v10.html |
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* |
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* Contributors: |
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* Eric Rizzo - initial API and implementation |
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*******************************************************************************/ |
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package org.eclipse.ui.internal.ide.application.dialogs; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import org.eclipse.core.runtime.Platform; |
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import org.eclipse.jface.preference.PreferencePage; |
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import org.eclipse.swt.SWT; |
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import org.eclipse.swt.events.SelectionAdapter; |
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import org.eclipse.swt.events.SelectionEvent; |
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import org.eclipse.swt.layout.GridData; |
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import org.eclipse.swt.layout.GridLayout; |
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import org.eclipse.swt.widgets.Button; |
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import org.eclipse.swt.widgets.Composite; |
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import org.eclipse.swt.widgets.Control; |
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import org.eclipse.swt.widgets.Group; |
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import org.eclipse.swt.widgets.Label; |
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import org.eclipse.swt.widgets.List; |
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import org.eclipse.swt.widgets.Spinner; |
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import org.eclipse.ui.IWorkbench; |
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import org.eclipse.ui.IWorkbenchPreferencePage; |
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import org.eclipse.ui.internal.ide.ChooseWorkspaceData; |
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/** |
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* Preference page for editing the list of recent workspaces and whether or not |
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* the user is prompted at startup. |
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* |
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* @since 3.5 |
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*/ |
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public class RecentWorkspacesPreferencePage extends PreferencePage |
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implements IWorkbenchPreferencePage { |
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private static final int MIN_WORKSPACS = 5; |
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private static final int MAX_WORKSPACES = 99; |
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private static final int MAX_WORKSPACES_DIGIT_COUNT = 2; |
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private ChooseWorkspaceData workspacesData; |
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private Button promptOption; |
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private Spinner maxWorkspacesField; |
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private List workspacesList; |
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private Button removeButton; |
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public void init(IWorkbench workbench) { |
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workspacesData = new ChooseWorkspaceData(Platform.getInstanceLocation().getURL()); |
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} |
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public Control createContents(Composite parent) { |
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Composite container = new Composite(parent, SWT.NULL); |
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final GridLayout gridLayout = new GridLayout(); |
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gridLayout.numColumns = 2; |
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gridLayout.marginHeight = 0; |
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gridLayout.marginWidth = 0; |
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container.setLayout(gridLayout); |
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createPromptOption(container); |
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createMaxWorkspacesField(container); |
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createWorkspacesList(container); |
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return container; |
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} |
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protected void createPromptOption(Composite parent) { |
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promptOption = new Button(parent, SWT.CHECK); |
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promptOption.setText("Prompt for &workspace on startup"); //$NON-NLS-1$ |
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promptOption.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1)); |
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promptOption.setSelection(workspacesData.getShowDialog()); |
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promptOption.addSelectionListener(new SelectionAdapter(){ |
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public void widgetSelected(SelectionEvent event) { |
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workspacesData.toggleShowDialog(); |
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} |
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}); |
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} |
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protected void createMaxWorkspacesField(Composite parent) { |
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final Label maxWorkspacesLabel = new Label(parent, SWT.NONE); |
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maxWorkspacesLabel.setText("&Number of recent workspaces to remember:"); //$NON-NLS-1$ |
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maxWorkspacesField = new Spinner(parent, SWT.BORDER); |
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maxWorkspacesField.setTextLimit(MAX_WORKSPACES_DIGIT_COUNT); |
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maxWorkspacesField.setMinimum(MIN_WORKSPACS); |
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maxWorkspacesField.setMaximum(MAX_WORKSPACES); |
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maxWorkspacesField.setSelection(workspacesData.getRecentWorkspaces().length); |
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} |
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protected void createWorkspacesList(Composite parent) { |
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final Group recentWorkspacesGroup = new Group(parent, SWT.NONE); |
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recentWorkspacesGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1)); |
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recentWorkspacesGroup.setText("Recent workspaces"); //$NON-NLS-1$ |
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final GridLayout gridLayout_1 = new GridLayout(); |
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gridLayout_1.numColumns = 2; |
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recentWorkspacesGroup.setLayout(gridLayout_1); |
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workspacesList = new List(recentWorkspacesGroup, SWT.BORDER | SWT.MULTI); |
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final GridData gd_workspacesList = new GridData(SWT.FILL, SWT.FILL, true, true); |
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workspacesList.setLayoutData(gd_workspacesList); |
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removeButton = new Button(recentWorkspacesGroup, SWT.NONE); |
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final GridData gd_removeButton = new GridData(SWT.CENTER, SWT.TOP, false, false); |
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removeButton.setLayoutData(gd_removeButton); |
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removeButton.setText("&Remove"); //$NON-NLS-1$ |
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removeButton.setEnabled(false); |
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removeButton.addSelectionListener(new SelectionAdapter(){ |
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public void widgetSelected(SelectionEvent event) { |
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removeSelectedWorkspaces(); |
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} |
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}); |
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workspacesList.addSelectionListener(new SelectionAdapter() { |
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public void widgetSelected(SelectionEvent event) { |
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removeButton.setEnabled(workspacesList.getSelectionCount() > 0); |
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} |
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}); |
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String[] recentWorkspaces = workspacesData.getRecentWorkspaces(); |
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for (int i = 0; i < recentWorkspaces.length; i++) { |
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String aWorkspace = recentWorkspaces[i]; |
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if (aWorkspace != null) { |
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workspacesList.add(aWorkspace); |
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} |
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} |
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} |
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protected void removeSelectedWorkspaces() { |
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// This would be a lot less code if we could use Jakarta CollectionUtils and/or ArrayUtils |
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int[] selected = workspacesList.getSelectionIndices(); |
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java.util.List workspaces = new ArrayList(Arrays.asList(workspacesList.getItems())); |
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// Iterate bottom-up because removal changes indices in the list |
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for (int i = selected.length-1; i >= 0; i--) { |
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workspaces.remove(selected[i]); |
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} |
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String[] newItems = new String[workspaces.size()]; |
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workspaces.toArray(newItems); |
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workspacesList.setItems(newItems); |
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} |
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protected void performDefaults() { |
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promptOption.setSelection(true); |
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super.performDefaults(); |
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} |
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public boolean performOk() { |
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int maxWorkspaces = maxWorkspacesField.getSelection(); |
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String[] workspaces = new String[maxWorkspaces]; |
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String[] listItems = workspacesList.getItems(); |
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if (maxWorkspaces < listItems.length) { |
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// TODO: maybe alert the user that the list will be truncated? |
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System.arraycopy(listItems, 0, workspaces, 0, maxWorkspaces); |
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} else { |
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System.arraycopy(listItems, 0, workspaces, 0, listItems.length); |
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} |
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workspacesData.setRecentWorkspaces(workspaces); |
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workspacesData.writePersistedData(); |
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return true; |
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} |
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} |
