Java tutorial
// ============================================================================ // // Copyright (C) 2006-2017 Talend Inc. - www.talend.com // // This source code is available under agreement available at // %InstallDIR%\features\org.talend.rcp.branding.%PRODUCTNAME%\%PRODUCTNAME%license.txt // // You should have received a copy of the agreement // along with this program; if not, write to Talend SA // 9 rue Pages 92150 Suresnes, France // // ============================================================================ package com.amalto.workbench.editors; import java.util.ArrayList; import java.util.Arrays; import java.util.HashSet; import java.util.LinkedHashMap; import java.util.Set; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.eclipse.jface.action.Action; 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.dialogs.MessageDialog; import org.eclipse.jface.viewers.DoubleClickEvent; import org.eclipse.jface.viewers.IDoubleClickListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.ITreeContentProvider; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.jface.viewers.Viewer; import org.eclipse.jface.window.Window; import org.eclipse.swt.SWT; import org.eclipse.swt.dnd.DND; import org.eclipse.swt.dnd.DragSource; import org.eclipse.swt.dnd.DragSourceEvent; import org.eclipse.swt.dnd.DragSourceListener; import org.eclipse.swt.dnd.DropTarget; import org.eclipse.swt.dnd.DropTargetEvent; import org.eclipse.swt.dnd.DropTargetListener; import org.eclipse.swt.dnd.TextTransfer; import org.eclipse.swt.dnd.Transfer; import org.eclipse.swt.events.ModifyEvent; import org.eclipse.swt.events.ModifyListener; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.List; import org.eclipse.swt.widgets.Menu; import org.eclipse.swt.widgets.Text; import org.eclipse.swt.widgets.Widget; import org.eclipse.ui.IWorkbenchActionConstants; import org.eclipse.ui.forms.editor.FormEditor; import org.eclipse.ui.forms.widgets.FormToolkit; import com.amalto.workbench.dialogs.MenuEntryDialog; import com.amalto.workbench.i18n.Messages; import com.amalto.workbench.image.EImage; import com.amalto.workbench.image.ImageCache; import com.amalto.workbench.models.TreeObject; import com.amalto.workbench.providers.XObjectEditorInput; import com.amalto.workbench.utils.Util; import com.amalto.workbench.webservices.WSMenu; import com.amalto.workbench.webservices.WSMenuEntry; import com.amalto.workbench.webservices.WSMenuMenuEntriesDescriptions; public class MenuMainPage extends AMainPageV2 { private static Log log = LogFactory.getLog(MenuMainPage.class); public final static int LOCATION_BEFORE = 0; public final static int LOCATION_AFTER = 1; public final static int LOCATION_UNDER = 2; protected Text descriptionText; protected TreeViewer menuTree = null; protected MenuManager menuTreeMgr = null; protected DropTarget windowTarget; protected boolean refreshing = false; protected boolean comitting = false; private String uripre; private TreeObject treeObject; public MenuMainPage(FormEditor editor) { super(editor, MenuMainPage.class.getName(), Messages.MenuMainPage_Menu + ((XObjectEditorInput) editor.getEditorInput()).getName() + Util.getRevision((TreeObject) ((XObjectEditorInput) editor.getEditorInput()).getModel())); treeObject = (TreeObject) ((XObjectEditorInput) editor.getEditorInput()).getModel(); uripre = treeObject.getEndpointIpAddress(); } @Override protected void createCharacteristicsContent(FormToolkit toolkit, Composite mainComposite) { try { // description Label descriptionLabel = toolkit.createLabel(mainComposite, Messages.MenuMainPage_Description, SWT.NULL); descriptionLabel.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, true, 1, 1)); descriptionText = toolkit.createText(mainComposite, "", SWT.BORDER);//$NON-NLS-1$ descriptionText.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1)); ((GridData) descriptionText.getLayoutData()).minimumHeight = 30; descriptionText.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { if (refreshing) { return; } markDirtyWithoutCommit(); } }); // Util.createCompDropTarget(descriptionText); // make the Page window a DropTarget - we need to dispose it windowTarget = new DropTarget(this.getPartControl(), DND.DROP_MOVE); windowTarget.setTransfer(new Transfer[] { TextTransfer.getInstance() }); windowTarget.addDropListener(new DCDropTargetListener()); Composite composite = toolkit.createComposite(mainComposite, SWT.BORDER); composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1)); composite.setLayout(new GridLayout(1, false)); menuTree = new TreeViewer(composite, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL); menuTree.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1)); ((GridData) menuTree.getControl().getLayoutData()).heightHint = 150; menuTree.setContentProvider(new ITreeContentProvider() { public void dispose() { } public Object[] getChildren(Object parentElement) { if (parentElement instanceof TreeEntry) { WSMenuEntry wsEntry = ((TreeEntry) parentElement).getWSMenuEntry(); if (wsEntry.getSubMenus() != null) { TreeEntry[] children = new TreeEntry[wsEntry.getSubMenus().size()]; for (int i = 0; i < wsEntry.getSubMenus().size(); i++) { children[i] = new TreeEntry((TreeEntry) parentElement, wsEntry.getSubMenus().get(i)); } return children; } return null; } if (parentElement instanceof WSMenu) { // the root java.util.List<WSMenuEntry> menuEntries = ((WSMenu) parentElement).getMenuEntries(); if (menuEntries != null) { TreeEntry[] children = new TreeEntry[menuEntries.size()]; for (int i = 0; i < menuEntries.size(); i++) { children[i] = new TreeEntry(null, menuEntries.get(i)); } return children; } return null; } return null; // ??!!? } public Object[] getElements(Object inputElement) { return getChildren(inputElement); } public Object getParent(Object element) { return null; } public boolean hasChildren(Object element) { return ((getChildren(element) == null) || (getChildren(element).length > 0)); } public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { } }); menuTree.setLabelProvider(new LabelProvider() { @Override public String getText(Object element) { WSMenuEntry wsMenuEntry = ((TreeEntry) element).getWSMenuEntry(); StringBuffer label = new StringBuffer(wsMenuEntry.getId() + " - ");//$NON-NLS-1$ for (WSMenuMenuEntriesDescriptions description : wsMenuEntry.getDescriptions()) { label.append("[").append(description.getLanguage()).append(": ")//$NON-NLS-1$//$NON-NLS-2$ .append(description.getLabel()).append("] ");//$NON-NLS-1$ } if (label.length() > 200) { return label.substring(0, 197) + "..."; //$NON-NLS-1$ } return label.toString(); } @Override public Image getImage(Object element) { return ImageCache.getCreatedImage(EImage.MENU.getPath()); } }); menuTreeMgr = new MenuManager(); menuTreeMgr.setRemoveAllWhenShown(true); menuTreeMgr.addMenuListener(new IMenuListener() { public void menuAboutToShow(IMenuManager manager) { IStructuredSelection selection = ((IStructuredSelection) menuTree.getSelection()); if ((selection == null) || (selection.getFirstElement() == null)) { manager.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS)); return; } // TreeEntry entry = (TreeEntry)selection.getFirstElement(); menuTreeMgr.add(new TreeEntryEditAction(menuTree)); menuTreeMgr.add(new TreeEntryAddAction(menuTree, LOCATION_BEFORE)); menuTreeMgr.add(new TreeEntryAddAction(menuTree, LOCATION_AFTER)); menuTreeMgr.add(new TreeEntryAddAction(menuTree, LOCATION_UNDER)); menuTreeMgr.add(new TreeEntryDeleteAction(menuTree)); menuTreeMgr.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS)); } }); menuTree.addDoubleClickListener(new IDoubleClickListener() { public void doubleClick(DoubleClickEvent event) { (new TreeEntryEditAction(menuTree)).run(); } }); Menu menu = menuTreeMgr.createContextMenu(menuTree.getControl()); menuTree.getControl().setMenu(menu); getSite().registerContextMenu(menuTreeMgr, menuTree); refreshData(); } catch (Exception e) { log.error(e.getMessage(), e); } }// createCharacteristicsContent @Override protected void refreshData() { try { // System.out.println("refreshData() "); if (this.comitting) { return; } this.refreshing = true; WSMenu wsMenu = (WSMenu) (getXObject().getWsObject()); descriptionText.setText(wsMenu.getDescription() == null ? "" : wsMenu.getDescription()); //$NON-NLS-1$ menuTree.setInput(wsMenu); this.refreshing = false; } catch (Exception e) { log.error(e.getMessage(), e); MessageDialog.openError(this.getSite().getShell(), Messages.MenuMainPage_ErrorRefreshingPage, Messages.bind(Messages.MenuMainPage_ErrorRefreshingPageXX, e.getLocalizedMessage())); } } @Override protected void commit() { try { // System.out.println("commit() ROLE\n"+role.toString()); if (this.refreshing) { return; } this.comitting = true; // commit as we go WSMenu wsMenu = ((WSMenu) getXObject().getWsObject()); wsMenu.setDescription(descriptionText.getText()); this.comitting = false; } catch (Exception e) { log.error(e.getMessage(), e); MessageDialog.openError(this.getSite().getShell(), Messages.MenuMainPage_ErrorCommitingPage, Messages.bind(Messages.MenuMainPage_ErrorCommitingPageXX, e.getLocalizedMessage())); } } @Override protected void createActions() { } /* * private void hookContextMenu(TreeViewer viewer) { } * * private void fillContextMenu(IMenuManager manager) { } */ @Override public void dispose() { super.dispose(); windowTarget.dispose(); } class TreeEntry { private TreeEntry parentTreeEntry; // null for the root private WSMenuEntry wsMenuEntry; // null for an attribute public TreeEntry(TreeEntry parentTreeEntry, WSMenuEntry wsMenuEntry) { super(); this.parentTreeEntry = parentTreeEntry; this.wsMenuEntry = wsMenuEntry; } public TreeEntry getParentTreeEntry() { return parentTreeEntry; } public void setParentTreeEntry(TreeEntry parentTreeEntry) { this.parentTreeEntry = parentTreeEntry; } public WSMenuEntry getWSMenuEntry() { return wsMenuEntry; } public void setWSMenuEntry(WSMenuEntry wsMenuEntry) { this.wsMenuEntry = wsMenuEntry; } } class MenuEntryDialogSelectionListener implements SelectionListener { protected TreeViewer viewer = null; protected TreeEntry treeEntry = null; public MenuEntryDialogSelectionListener(TreeViewer viewer, TreeEntry treeEntry) { super(); this.viewer = viewer; this.treeEntry = treeEntry; } public void widgetSelected(SelectionEvent e) { MenuEntryDialog dlg = (MenuEntryDialog) ((Widget) e.getSource()).getData("dialog");//$NON-NLS-1$ if (dlg.getReturnCode() == Window.OK) { String id = dlg.getIdText().getText(); if ("".equals(id)) {//$NON-NLS-1$ MessageDialog.openError(viewer.getControl().getShell(), Messages._Error, Messages.MenuMainPage_IDCannotbeEmpty); return; } LinkedHashMap<String, String> descriptions = ((LinkedHashMap<String, String>) dlg .getDescriptionsTableViewer().getInput()); if (descriptions.size() == 0) { MessageDialog.openError(viewer.getControl().getShell(), Messages._Error, Messages.MenuMainPage_ErrorMsg); return; } treeEntry.getWSMenuEntry().setId(id); treeEntry.getWSMenuEntry().setContext( "".equals(dlg.getContextText().getText()) ? null : dlg.getContextText().getText());//$NON-NLS-1$ treeEntry.getWSMenuEntry().setApplication("".equals(dlg.getApplicationNameText().getText()) ? null //$NON-NLS-1$ : dlg.getApplicationNameText().getText()); treeEntry.getWSMenuEntry().setIcon( "".equals(dlg.getIconPathText().getText()) ? null : dlg.getIconPathText().getText());//$NON-NLS-1$ treeEntry.getWSMenuEntry().getDescriptions().clear(); for (String isoCode : descriptions.keySet()) { WSMenuMenuEntriesDescriptions wsDescription = new WSMenuMenuEntriesDescriptions(); wsDescription.setLanguage(isoCode.toUpperCase()); wsDescription.setLabel(descriptions.get(isoCode)); treeEntry.getWSMenuEntry().getDescriptions().add(wsDescription); } viewer.setExpandedState(treeEntry, true); viewer.refresh(treeEntry, true); markDirtyWithoutCommit(); } dlg.close(); } public void widgetDefaultSelected(SelectionEvent e) { }; } class TreeEntryEditAction extends Action { protected TreeViewer viewer = null; protected TreeEntry treeEntry = null; protected MenuEntryDialog dlg = null; public TreeEntryEditAction(TreeViewer view) { super(); this.viewer = view; treeEntry = (TreeEntry) ((IStructuredSelection) viewer.getSelection()).getFirstElement(); setImageDescriptor(ImageCache.getImage("icons/edit_obj.gif"));//$NON-NLS-1$ setText(Messages.MenuMainPage_Edit); setToolTipText(Messages.MenuMainPage_EditThisMenuEntry); } @Override public void run() { try { super.run(); // if attribute, edit parent else edit this one dlg = new MenuEntryDialog(treeEntry.getWSMenuEntry(), new MenuEntryDialogSelectionListener(viewer, treeEntry), this.viewer.getControl().getShell(), Messages.MenuMainPage_EditTheMenuEntry + treeEntry.getWSMenuEntry().getId(), false, uripre, isLocalInput(), treeObject); dlg.setBlockOnOpen(true); dlg.open(); } catch (Exception e) { log.error(e.getMessage(), e); MessageDialog.openError(viewer.getControl().getShell(), Messages._Error, Messages.bind(Messages.MenuMainPage_ErrorMsg1, treeEntry.getWSMenuEntry().getId(), e.getLocalizedMessage())); } } @Override public void runWithEvent(Event event) { super.runWithEvent(event); } }// class RoleMenuTreeEditAction class TreeEntryAddAction extends Action { protected TreeViewer viewer = null; protected TreeEntry treeEntry = null; protected MenuEntryDialog dlg = null; protected int location = 0;; protected int position = 0; public TreeEntryAddAction(TreeViewer view, int location) { super(); this.viewer = view; this.location = location; String label = "";//$NON-NLS-1$ TreeEntry currentEntry = (TreeEntry) ((IStructuredSelection) viewer.getSelection()).getFirstElement(); WSMenuEntry wsMenuEntry = new WSMenuEntry("", "", null, null, "", null); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ switch (location) { case LOCATION_UNDER: position = currentEntry.getWSMenuEntry().getSubMenus().size(); treeEntry = new TreeEntry(currentEntry, wsMenuEntry); label = Messages.MenuMainPage_LaelText + currentEntry.getWSMenuEntry().getId(); break; case LOCATION_BEFORE: position = findSubMenuPosition(currentEntry); treeEntry = new TreeEntry(currentEntry.getParentTreeEntry(), wsMenuEntry); label = Messages.MenuMainPage_LaelText1; break; case LOCATION_AFTER: position = findSubMenuPosition(currentEntry); treeEntry = new TreeEntry(currentEntry.getParentTreeEntry(), wsMenuEntry); label = Messages.MenuMainPage_AddAMenuEntryAfter; break; } setImageDescriptor(ImageCache.getImage("icons/add_obj.gif"));//$NON-NLS-1$ setText(label); setToolTipText(Messages.MenuMainPage_AddAMenuEntry); } @Override public void run() { try { super.run(); // if attribute, edit parent else edit this one dlg = new MenuEntryDialog(new WSMenuEntry(), new MenuEntryDialogSelectionListener(viewer, treeEntry), this.viewer.getControl().getShell(), Messages.MenuMainPage_NewMenuEntry, uripre, isLocalInput(), treeObject); dlg.setBlockOnOpen(true); dlg.open(); if (dlg.getReturnCode() == Window.OK) { // add the entry to the WS Parent addSubMenu(treeEntry, position); } } catch (Exception e) { log.error(e.getMessage(), e); MessageDialog.openError(viewer.getControl().getShell(), Messages._Error, Messages.bind(Messages.ErrorMsg1, e.getLocalizedMessage())); } } @Override public void runWithEvent(Event event) { super.runWithEvent(event); } protected int findSubMenuPosition(TreeEntry entry) { // find the position if (entry.getParentTreeEntry() == null) { // top level WSMenu menu = ((WSMenu) viewer.getInput()); for (int i = 0; i < menu.getMenuEntries().size(); i++) { if (menu.getMenuEntries().get(i).equals(entry.getWSMenuEntry())) { position = i; break; } } return position; } // sub menu of a menu entry for (int i = 0; i < entry.getParentTreeEntry().getWSMenuEntry().getSubMenus().size(); i++) { if (entry.getParentTreeEntry().getWSMenuEntry().getSubMenus().get(i) .equals(entry.getWSMenuEntry())) { position = i; break; } } return position; } protected void addSubMenu(TreeEntry entry, int position) { ArrayList<WSMenuEntry> list = new ArrayList<WSMenuEntry>(); if (entry.getParentTreeEntry() == null) { // top level WSMenu menu = ((WSMenu) viewer.getInput()); for (int i = 0; i < menu.getMenuEntries().size(); i++) { if ((position == i) && (location == LOCATION_BEFORE)) { list.add(entry.getWSMenuEntry()); } list.add(menu.getMenuEntries().get(i)); if ((position == i) && (location == LOCATION_AFTER)) { list.add(entry.getWSMenuEntry()); } } menu.getMenuEntries().clear(); menu.getMenuEntries().addAll(list); viewer.setExpandedState(menu, true); viewer.refresh(menu, true); log.info(Messages.MenuMainPage_There); return; } // sub menu of a menu entry WSMenuEntry wsParent = entry.getParentTreeEntry().getWSMenuEntry(); if ((wsParent.getSubMenus() == null) || (wsParent.getSubMenus().size() == 0)) { // no submenus yet log.info(Messages.MenuMainPage_here); wsParent.getSubMenus().clear(); wsParent.getSubMenus().add(entry.getWSMenuEntry()); viewer.setExpandedState(entry.getParentTreeEntry(), true); viewer.refresh(entry.getParentTreeEntry(), true); return; } for (int i = 0; i < wsParent.getSubMenus().size(); i++) { if ((position == i) && (location == LOCATION_BEFORE)) { list.add(entry.getWSMenuEntry()); } list.add(wsParent.getSubMenus().get(i)); if ((position == i) && (location == LOCATION_AFTER)) { list.add(entry.getWSMenuEntry()); } } if (!list.contains(entry.getWSMenuEntry())) { list.add(entry.getWSMenuEntry()); } wsParent.getSubMenus().clear(); wsParent.getSubMenus().addAll(list); viewer.setExpandedState(entry.getParentTreeEntry(), true); viewer.refresh(entry.getParentTreeEntry(), true); } }// class RoleMenuTreeAddAction class TreeEntryDeleteAction extends Action { protected TreeViewer viewer = null; protected java.util.List<TreeEntry> treeEntries = null; protected MenuEntryDialog dlg = null; public TreeEntryDeleteAction(TreeViewer view) { super(); this.viewer = view; treeEntries = ((IStructuredSelection) viewer.getSelection()).toList(); setImageDescriptor(ImageCache.getImage("icons/delete_obj.gif"));//$NON-NLS-1$ setText(Messages.MenuMainPage_DelEntry); setToolTipText(Messages.MenuMainPage_DelMenuEntry); } @Override public void run() { TreeEntry curRemoved = treeEntries.get(0); boolean refreshAll = false; try { Set<TreeEntry> refreshEntries = new HashSet<MenuMainPage.TreeEntry>(); for (TreeEntry treeEntry : treeEntries) { curRemoved = treeEntry; if (treeEntry.getParentTreeEntry() == null) { // top level menu WSMenu menu = ((WSMenu) viewer.getInput()); if (menu.getMenuEntries().size() == 1) { MessageDialog.openWarning(MenuMainPage.this.getSite().getShell(), Messages.MenuMainPage_MenuEntryWarning, Messages.MenuMainPage_ErrorMsg2); return; } menu.getMenuEntries().remove(treeEntry.getWSMenuEntry()); refreshAll = true; } else { // sub Menu Entry of a sub menu TreeEntry parentTreeEntry = treeEntry.getParentTreeEntry(); parentTreeEntry.getWSMenuEntry().getSubMenus().remove(treeEntry.getWSMenuEntry()); refreshEntries.add(parentTreeEntry); } } // refresh the viewer if (refreshAll) { viewer.refresh(); } else { for (TreeEntry parentTreeEntry : refreshEntries) { viewer.setExpandedState(parentTreeEntry, true); viewer.refresh(parentTreeEntry, false); } } // mark dirty markDirtyWithoutCommit(); } catch (Exception e) { log.error(e.getMessage(), e); MessageDialog.openError(viewer.getControl().getShell(), Messages._Error, Messages.bind(Messages.MenuMainPage_ErrorMsg3, curRemoved.getWSMenuEntry().getId(), e.getLocalizedMessage())); } } @Override public void runWithEvent(Event event) { super.runWithEvent(event); } }// class RoleMenuTreeDeleteAction /**************************************************************************** * DND ****************************************************************************/ class DCDragSourceListener implements DragSourceListener { private int selected; public void dragFinished(DragSourceEvent event) { Control control = ((DragSource) event.widget).getControl(); if ((control instanceof List) && ((event.detail & DND.DROP_MOVE) == DND.DROP_MOVE)) { ((List) control).remove(selected); MenuMainPage.this.markDirtyWithoutCommit(); } } public void dragSetData(DragSourceEvent event) { Control control = ((DragSource) event.widget).getControl(); if ((control instanceof List)) { if (TextTransfer.getInstance().isSupportedType(event.dataType)) { this.selected = ((List) control).getSelectionIndex(); event.data = ((List) control).getSelection()[0]; } } } public void dragStart(DragSourceEvent event) { Control control = ((DragSource) event.widget).getControl(); if ((control instanceof List)) { event.doit = (((List) control).getItemCount() > 0); } } } class DCDropTargetListener implements DropTargetListener { public void dragEnter(DropTargetEvent event) { // priority to copy if ((event.operations & DND.DROP_COPY) == DND.DROP_COPY) { event.detail = DND.DROP_COPY; } else if ((event.operations & DND.DROP_MOVE) == DND.DROP_MOVE) { event.detail = DND.DROP_MOVE; } else { event.detail = DND.DROP_NONE; } } public void dragLeave(DropTargetEvent event) { } public void dragOperationChanged(DropTargetEvent event) { } public void dragOver(DropTargetEvent event) { } public void drop(DropTargetEvent event) { Control control = ((DropTarget) event.widget).getControl(); if ((control instanceof List) && ((event.operations & DND.DROP_COPY) == DND.DROP_COPY)) { if (TextTransfer.getInstance().isSupportedType(event.currentDataType)) { if (!Arrays.asList(((List) control).getItems()).contains(event.data)) { ((List) control).add((String) event.data); MenuMainPage.this.markDirtyWithoutCommit(); } } } } public void dropAccept(DropTargetEvent event) { } } }