Java tutorial
/* * Copyright (C) 2012 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.eclipse.andmore.android.certmanager.views; import java.util.Collections; import java.util.List; import org.eclipse.andmore.android.certmanager.event.IKeyStoreModelListener; import org.eclipse.andmore.android.certmanager.event.KeyStoreModelEvent; import org.eclipse.andmore.android.certmanager.event.KeyStoreModelEventManager; import org.eclipse.andmore.android.certmanager.exception.KeyStoreManagerException; import org.eclipse.andmore.android.certmanager.i18n.CertificateManagerNLS; import org.eclipse.andmore.android.certmanager.ui.model.ITreeNode; import org.eclipse.andmore.android.certmanager.ui.model.KeyStoreRootNode; import org.eclipse.andmore.android.certmanager.ui.model.SigningAndKeysModelManager; import org.eclipse.andmore.android.certmanager.ui.tree.ExpiresInColumnLabelProvider; import org.eclipse.andmore.android.certmanager.ui.tree.KeystoreManagerTreeContentProvider; import org.eclipse.andmore.android.certmanager.ui.tree.LastBackupDateColumnLabelProvider; import org.eclipse.andmore.android.certmanager.ui.tree.NameAliasColumnLabelProvider; import org.eclipse.andmore.android.certmanager.ui.tree.PathColumnLabelProvider; import org.eclipse.andmore.android.certmanager.ui.tree.TypeColumnLabelProvider; import org.eclipse.andmore.android.common.log.AndmoreLogger; import org.eclipse.jface.action.IMenuListener; import org.eclipse.jface.action.IMenuManager; import org.eclipse.jface.action.MenuManager; import org.eclipse.jface.action.Separator; import org.eclipse.jface.viewers.ColumnViewerToolTipSupport; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.jface.viewers.TreeViewerColumn; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Menu; import org.eclipse.swt.widgets.Tree; import org.eclipse.swt.widgets.TreeColumn; import org.eclipse.ui.IWorkbenchActionConstants; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.part.ViewPart; /** * View to manage certificates under Eclipse Andmore */ public class KeystoreManagerView extends ViewPart implements IKeyStoreModelListener { /** * The ID of the view as specified by the extension. */ public static final String ID = "org.eclipse.andmore.android.packaging.ui.signingview"; //$NON-NLS-1$ private TreeViewer viewer; /** * This is a callback that will allow us to create the viewer and initialize * it. */ @Override public void createPartControl(Composite parent) { viewer = new TreeViewer(parent, SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER | SWT.FULL_SELECTION | SWT.VIRTUAL | SWT.MULTI); // Virtual is required due to // ILazyTreeContentProvider viewer.setUseHashlookup(true); viewer.setAutoExpandLevel(0); viewer.setContentProvider(new KeystoreManagerTreeContentProvider(viewer)); viewer.setInput(getInitalInput()); viewer.expandToLevel(getInitalInput(), 1); ColumnViewerToolTipSupport.enableFor(viewer); getSite().setSelectionProvider(viewer); Tree tree = viewer.getTree(); tree.setLinesVisible(true); tree.setHeaderVisible(true); tree.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1)); { TreeViewerColumn treeViewerColumn = new TreeViewerColumn(viewer, SWT.NONE); treeViewerColumn.setLabelProvider(new NameAliasColumnLabelProvider()); TreeColumn trclmnNewColumn = treeViewerColumn.getColumn(); trclmnNewColumn.setWidth(250); trclmnNewColumn.setText(CertificateManagerNLS.CertificateManagerView_NameAlias_ColumnName); tree.setSortColumn(treeViewerColumn.getColumn()); tree.setSortDirection(SWT.DOWN); } { TreeViewerColumn treeViewerColumn = new TreeViewerColumn(viewer, SWT.NONE); treeViewerColumn.setLabelProvider(new TypeColumnLabelProvider()); TreeColumn trclmnNewColumn = treeViewerColumn.getColumn(); trclmnNewColumn.setWidth(75); trclmnNewColumn.setText(CertificateManagerNLS.CertificateManagerView_Type_ColumnName); } { TreeViewerColumn treeViewerColumn = new TreeViewerColumn(viewer, SWT.NONE); treeViewerColumn.setLabelProvider(new ExpiresInColumnLabelProvider()); TreeColumn trclmnExpiresIn = treeViewerColumn.getColumn(); trclmnExpiresIn.setWidth(100); trclmnExpiresIn.setText(CertificateManagerNLS.CertificateManagerView_ExpiresIn_ColumnName); } { TreeViewerColumn treeViewerColumn = new TreeViewerColumn(viewer, SWT.NONE); treeViewerColumn.setLabelProvider(new LastBackupDateColumnLabelProvider()); TreeColumn trclmnLastBackupDate = treeViewerColumn.getColumn(); trclmnLastBackupDate.setWidth(125); trclmnLastBackupDate.setText(CertificateManagerNLS.CertificateManagerView_LastBackupDate_ColumnName); } { TreeViewerColumn treeViewerColumn = new TreeViewerColumn(viewer, SWT.LEFT); treeViewerColumn.setLabelProvider(new PathColumnLabelProvider()); TreeColumn trclmnPath = treeViewerColumn.getColumn(); trclmnPath.setWidth(500); trclmnPath.setText(CertificateManagerNLS.CertificateManagerView_Path_ColumnName); } // Create the help context id for the viewer's control PlatformUI.getWorkbench().getHelpSystem().setHelp(viewer.getControl(), "org.eclipse.andmore.android.certmanager.viewer"); //$NON-NLS-1$ hookContextMenu(); getSite().setSelectionProvider(viewer); // register listener for model changes KeyStoreModelEventManager.getInstance().addListener(this); } private void hookContextMenu() { MenuManager menuMgr = new MenuManager("#PopupMenu"); //$NON-NLS-1$ menuMgr.setRemoveAllWhenShown(true); menuMgr.addMenuListener(new IMenuListener() { @Override public void menuAboutToShow(IMenuManager manager) { fillContextMenu(manager); } }); Menu menu = menuMgr.createContextMenu(viewer.getControl()); viewer.getControl().setMenu(menu); getSite().registerContextMenu(menuMgr, viewer); } private void fillContextMenu(IMenuManager manager) { // Other plug-ins can contribute there actions here // manager.add(openClose); manager.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS)); } /** * Loads the keystores from preference and * <user_home>\motodevstudio\tools\andmore.keystore * * @return root node (invisible) that contains as children the keystores. */ private Object getInitalInput() { return SigningAndKeysModelManager.getInstance().getKeyStoresRootNode(); } /** * Passing the focus request to the viewer's control. */ @Override public void setFocus() { viewer.getControl().setFocus(); } public TreeViewer getTreeViewer() { return viewer; } /** * Closing the view */ @Override public void dispose() { super.dispose(); // remove listener for model changes KeyStoreModelEventManager.getInstance().removeListener(this); } /* * (non-Javadoc) * * @see * org.eclipse.andmore.android.certmanager.event.IKeyStoreModelListener# * handleNodeAdditionEvent * (org.eclipse.andmore.android.certmanager.event.KeyStoreModelEvent) */ @Override public void handleNodeAdditionEvent(final KeyStoreModelEvent keyStoreModeEvent) { Display display = Display.getDefault(); if (!display.isDisposed()) { display.syncExec(new Runnable() { @Override public void run() { ITreeNode treeNodeItem = keyStoreModeEvent.getTreeNodeItem(); ITreeNode parentNode = treeNodeItem.getParent(); /* * (parentNode instanceof KeyStoreRootNode) is a workaround * to add nodes to the root node since * getTreeViewer().getExpandedState(parentNode) always * return false when the parentNode is the root node * (KeyStoreRootNode in this case) */ if (getTreeViewer().getExpandedState(parentNode) || (parentNode instanceof KeyStoreRootNode)) { getTreeViewer().add(parentNode, treeNodeItem); } else { List<ITreeNode> children; try { children = parentNode.getChildren(); } catch (KeyStoreManagerException e) { children = Collections.emptyList(); } if (children.size() > 0) { getTreeViewer().setChildCount(parentNode, children.size()); } } } }); } } /* * (non-Javadoc) * * @see * org.eclipse.andmore.android.certmanager.event.IKeyStoreModelListener# * handleNodeRemovalEvent * (org.eclipse.andmore.android.certmanager.event.KeyStoreModelEvent) */ @Override public void handleNodeRemovalEvent(final KeyStoreModelEvent keyStoreModeEvent) { Display display = Display.getDefault(); if (!display.isDisposed()) { display.syncExec(new Runnable() { @Override public void run() { if (!getTreeViewer().getTree().isDisposed()) { getTreeViewer().remove(keyStoreModeEvent.getTreeNodeItem()); } } }); } } /* * (non-Javadoc) * * @see * org.eclipse.andmore.android.certmanager.event.IKeyStoreModelListener# * handleNodeUpdateEvent * (org.eclipse.andmore.android.certmanager.event.KeyStoreModelEvent) */ @Override public void handleNodeUpdateEvent(final KeyStoreModelEvent keyStoreModeEvent) { Display display = Display.getDefault(); if (!display.isDisposed()) { display.asyncExec(new Runnable() { @Override public void run() { ITreeNode treeNode = keyStoreModeEvent.getTreeNodeItem(); getTreeViewer().update(treeNode, null); } }); } } @Override public void handleNodeCollapseEvent(final KeyStoreModelEvent keyStoreModelEvent) { Display display = Display.getDefault(); if (!display.isDisposed()) { display.asyncExec(new Runnable() { @Override public void run() { ITreeNode treeNode = keyStoreModelEvent.getTreeNodeItem(); // Ugly workaround to avoid JFace treeViewer to enter in a // infinite loop asking for children all the time. getTreeViewer().remove(treeNode); getTreeViewer().add(treeNode.getParent(), treeNode); } }); } } @Override public void handleNodeRefreshEvent(final KeyStoreModelEvent keyStoreModelEvent) { Display display = Display.getDefault(); if (!display.isDisposed()) { display.asyncExec(new Runnable() { @Override public void run() { ITreeNode treeNode = keyStoreModelEvent.getTreeNodeItem(); if (treeNode != null) { try { getTreeViewer().remove(treeNode, treeNode.getChildren().toArray()); } catch (KeyStoreManagerException e) { AndmoreLogger.error("Error while accessing keystore manager. " + e.getMessage()); } getTreeViewer().refresh(treeNode, true); } } }); } } @Override public void handleNodeClearEvent(final KeyStoreModelEvent keyStoreModelEvent) { Display display = Display.getDefault(); if (!display.isDisposed()) { display.syncExec(new Runnable() { @Override public void run() { ITreeNode treeNode = keyStoreModelEvent.getTreeNodeItem(); if (treeNode != null) { try { getTreeViewer().remove(treeNode, treeNode.getChildren().toArray()); getTreeViewer().setChildCount(treeNode, 0); } catch (KeyStoreManagerException e) { AndmoreLogger.error("Error while accessing keystore manager. " + e.getMessage()); } } } }); } } }