Java tutorial
/******************************************************************************* * Copyright (c) 2004, 2010 Tasktop Technologies and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Tasktop Technologies - initial API and implementation *******************************************************************************/ package org.eclipse.mylyn.internal.tasks.ui.views; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.IMenuListener; import org.eclipse.jface.action.IMenuManager; import org.eclipse.jface.action.IToolBarManager; import org.eclipse.jface.action.MenuManager; import org.eclipse.jface.action.Separator; import org.eclipse.jface.viewers.DecoratingLabelProvider; import org.eclipse.jface.viewers.DoubleClickEvent; import org.eclipse.jface.viewers.IDoubleClickListener; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.jface.viewers.ViewerFilter; import org.eclipse.mylyn.commons.workbench.GradientDrawer; import org.eclipse.mylyn.commons.workbench.WorkbenchUtil; import org.eclipse.mylyn.internal.tasks.core.Category; import org.eclipse.mylyn.internal.tasks.core.IRepositoryModelListener; import org.eclipse.mylyn.internal.tasks.core.TaskRepositoryAdapter; import org.eclipse.mylyn.internal.tasks.core.TaskRepositoryManager; import org.eclipse.mylyn.internal.tasks.ui.TasksUiPlugin; import org.eclipse.mylyn.internal.tasks.ui.actions.AddRepositoryAction; import org.eclipse.mylyn.internal.tasks.ui.actions.DeleteTaskRepositoryAction; import org.eclipse.mylyn.internal.tasks.ui.actions.DisconnectRepositoryAction; import org.eclipse.mylyn.tasks.core.IRepositoryListener; import org.eclipse.mylyn.tasks.core.TaskRepository; import org.eclipse.mylyn.tasks.ui.ITasksUiConstants; import org.eclipse.mylyn.tasks.ui.TasksUi; import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Menu; import org.eclipse.ui.IActionBars; import org.eclipse.ui.IViewPart; import org.eclipse.ui.IWorkbenchActionConstants; import org.eclipse.ui.IWorkbenchPage; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.actions.ActionFactory; import org.eclipse.ui.actions.BaseSelectionListenerAction; import org.eclipse.ui.part.ViewPart; import org.eclipse.ui.themes.IThemeManager; /** * @author Mik Kersten */ public class TaskRepositoriesView extends ViewPart { /** * @deprecated Use {@link ITasksUiConstants#ID_VIEW_REPOSITORIES} instead */ @Deprecated public static final String ID = ITasksUiConstants.ID_VIEW_REPOSITORIES; private TreeViewer viewer; private final Action addRepositoryAction = new AddRepositoryAction(); private BaseSelectionListenerAction deleteRepositoryAction; private BaseSelectionListenerAction resetConfigurationAction; private DisconnectRepositoryAction offlineAction; private void asyncExec(Runnable runnable) { if (Display.getCurrent() != null) { runnable.run(); } else { Display.getDefault().asyncExec(runnable); } } private final IRepositoryModelListener MODEL_LISTENER = new IRepositoryModelListener() { public void loaded() { asyncExec(new Runnable() { public void run() { refresh(); } }); } }; private final IRepositoryListener REPOSITORY_LISTENER = new TaskRepositoryAdapter() { @Override public void repositoryAdded(TaskRepository repository) { asyncExec(new Runnable() { public void run() { refresh(); } }); } @Override public void repositoryRemoved(TaskRepository repository) { asyncExec(new Runnable() { public void run() { refresh(); } }); } @Override public void repositorySettingsChanged(TaskRepository repository) { asyncExec(new Runnable() { public void run() { refresh(); } }); } }; private final TaskRepositoryManager manager; private TaskRepositoriesContentProvider contentProvider; public TaskRepositoriesView() { manager = ((TaskRepositoryManager) TasksUi.getRepositoryManager()); manager.addListener(REPOSITORY_LISTENER); TasksUiPlugin.getDefault().addModelListener(MODEL_LISTENER); } @Override public void dispose() { super.dispose(); TasksUiPlugin.getRepositoryManager().removeListener(REPOSITORY_LISTENER); TasksUiPlugin.getDefault().removeModelListener(MODEL_LISTENER); } public static TaskRepositoriesView getFromActivePerspective() { if (PlatformUI.getWorkbench().getActiveWorkbenchWindow() != null) { IWorkbenchPage activePage = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(); if (activePage == null) { return null; } IViewPart view = activePage.findView(ITasksUiConstants.ID_VIEW_REPOSITORIES); if (view instanceof TaskRepositoriesView) { return (TaskRepositoriesView) view; } } return null; } public static TaskRepositoriesView openInActivePerspective() { try { return (TaskRepositoriesView) PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage() .showView(ITasksUiConstants.ID_VIEW_REPOSITORIES); } catch (Exception e) { return null; } } @Override public void createPartControl(Composite parent) { contentProvider = new TaskRepositoriesContentProvider(); viewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION); viewer.setContentProvider(contentProvider); viewer.setUseHashlookup(true); ViewerFilter[] filters = { new EmptyCategoriesFilter(contentProvider) }; viewer.setFilters(filters); viewer.setLabelProvider(new DecoratingLabelProvider(new TaskRepositoryLabelProvider(), PlatformUI.getWorkbench().getDecoratorManager().getLabelDecorator())); viewer.setSorter(new TaskRepositoriesViewSorter()); viewer.setInput(getViewSite()); viewer.addDoubleClickListener(new IDoubleClickListener() { public void doubleClick(DoubleClickEvent event) { WorkbenchUtil.openProperties(getSite()); } }); final IThemeManager themeManager = getSite().getWorkbenchWindow().getWorkbench().getThemeManager(); new GradientDrawer(themeManager, getViewer()) { @Override protected boolean shouldApplyGradient(org.eclipse.swt.widgets.Event event) { return event.item.getData() instanceof Category; } }; makeActions(); hookContextMenu(); hookGlobalActions(); contributeToActionBars(); getViewer().expandAll(); getSite().setSelectionProvider(getViewer()); } private void hookGlobalActions() { IActionBars bars = getViewSite().getActionBars(); bars.setGlobalActionHandler(ActionFactory.DELETE.getId(), deleteRepositoryAction); bars.setGlobalActionHandler(ActionFactory.REFRESH.getId(), resetConfigurationAction); } private void makeActions() { deleteRepositoryAction = new DeleteTaskRepositoryAction(); viewer.addSelectionChangedListener(deleteRepositoryAction); resetConfigurationAction = new UpdateRepositoryConfigurationAction(); resetConfigurationAction.setActionDefinitionId("org.eclipse.ui.file.refresh"); //$NON-NLS-1$ viewer.addSelectionChangedListener(resetConfigurationAction); offlineAction = new DisconnectRepositoryAction(); viewer.addSelectionChangedListener(offlineAction); } private void hookContextMenu() { MenuManager menuMgr = new MenuManager("#PopupMenu"); //$NON-NLS-1$ menuMgr.setRemoveAllWhenShown(true); menuMgr.addMenuListener(new IMenuListener() { public void menuAboutToShow(IMenuManager manager) { TaskRepositoriesView.this.fillContextMenu(manager); } }); Menu menu = menuMgr.createContextMenu(viewer.getControl()); viewer.getControl().setMenu(menu); getSite().registerContextMenu(menuMgr, viewer); } private void contributeToActionBars() { IActionBars bars = getViewSite().getActionBars(); fillLocalPullDown(bars.getMenuManager()); fillLocalToolBar(bars.getToolBarManager()); } private void fillLocalPullDown(IMenuManager manager) { manager.add(addRepositoryAction); } private void fillContextMenu(IMenuManager manager) { manager.add(new Separator("new")); //$NON-NLS-1$ manager.add(addRepositoryAction); manager.add(new Separator("edit")); //$NON-NLS-1$ manager.add(deleteRepositoryAction); manager.add(resetConfigurationAction); manager.add(new Separator("operations")); //$NON-NLS-1$ manager.add(offlineAction); manager.add(new Separator("repository")); //$NON-NLS-1$ manager.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS)); manager.add(new Separator()); manager.add(new Separator("properties")); //$NON-NLS-1$ } private void fillLocalToolBar(IToolBarManager manager) { manager.add(addRepositoryAction); } /** * Passing the focus request to the viewer's control. */ @Override public void setFocus() { viewer.getControl().setFocus(); } public void refresh() { if (viewer != null && !viewer.getControl().isDisposed()) { viewer.refresh(); viewer.expandAll(); } } public TreeViewer getViewer() { return viewer; } }