| /******************************************************************************* |
| * Copyright (c) 2013 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 |
| *******************************************************************************/ |
| package org.eclipse.pde.internal.ui.editor; |
| |
| import java.util.Collections; |
| import java.util.LinkedList; |
| import java.util.List; |
| import org.eclipse.jface.dialogs.IDialogSettings; |
| import org.eclipse.pde.internal.ui.PDEPlugin; |
| |
| /** |
| * Manages the list of launch shortcuts available in the {@link PDELauncherFormEditor}. |
| * Provides a recommended order for actions that is persisted between workbench launches. |
| * This could also be applied to {@link LaunchShortcutOverviewPage} in the future. |
| * @since 4.3 |
| */ |
| public class PDEEditorLaunchManager { |
| |
| private static final String SETTINGS_SECTION = "PDEFormActionManager"; //$NON-NLS-1$ |
| private static final String SETTINGS_RECENT_LAUNCHES = "RecentLaunches"; //$NON-NLS-1$ |
| private static final int MAX_LAUNCHES = 3; |
| |
| private static PDEEditorLaunchManager fDefault; |
| private List<String> recentLaunches; |
| |
| /** |
| * Returns the static default instance of this manager |
| * @return the default manager |
| */ |
| public static PDEEditorLaunchManager getDefault() { |
| if (fDefault == null) { |
| fDefault = new PDEEditorLaunchManager(); |
| } |
| return fDefault; |
| } |
| |
| /** |
| * Marks the launcher with the given launcher id as being recently launched |
| * |
| * @param id launcher id, 'id' attribute of the PDE launch shortcut extension |
| */ |
| public void setRecentLaunch(String id) { |
| if (recentLaunches == null) { |
| initialize(); |
| } |
| // Reorder list to put this id on top |
| int currentIndex = recentLaunches.indexOf(id); |
| if (currentIndex == -1) { |
| recentLaunches.add(0, id); |
| } else if (currentIndex != 0) { |
| recentLaunches.remove(currentIndex); |
| recentLaunches.add(0, id); |
| } |
| |
| // As only single items can be added to the list, just remove the last item if we are over max |
| if (recentLaunches.size() > MAX_LAUNCHES) { |
| recentLaunches.remove(recentLaunches.size() - 1); |
| } |
| |
| // Persist the settings |
| persist(); |
| } |
| |
| /** |
| * Returns an ordered list of String launcher ids taken from PDE launch |
| * shortcut extensions. The most recently launched entry is at |
| * index 0. |
| * |
| * @return ordered list of launcher IDs, possibly empty |
| */ |
| public List<String> getRecentLaunches() { |
| if (recentLaunches == null) { |
| initialize(); |
| } |
| return recentLaunches; |
| } |
| |
| private void initialize() { |
| recentLaunches = new LinkedList<>(); |
| IDialogSettings settings = PDEPlugin.getDefault().getDialogSettingsSection(SETTINGS_SECTION); |
| String[] result = settings.getArray(SETTINGS_RECENT_LAUNCHES); |
| if (result != null) { |
| Collections.addAll(recentLaunches, result); |
| } |
| } |
| |
| private void persist() { |
| if (recentLaunches != null) { |
| IDialogSettings settings = PDEPlugin.getDefault().getDialogSettingsSection(SETTINGS_SECTION); |
| String[] result = recentLaunches.toArray(new String[recentLaunches.size()]); |
| settings.put(SETTINGS_RECENT_LAUNCHES, result); |
| } |
| } |
| |
| } |