Java tutorial
/** * Aptana Studio * Copyright (c) 2005-2011 by Appcelerator, Inc. All Rights Reserved. * Licensed under the terms of the GNU Public License (GPL) v3 (with exceptions). * Please see the license.html included with this distribution for details. * Any modifications to this file must keep this entire header intact. */ package com.aptana.ide.syncing.ui.dialogs; import java.text.MessageFormat; import java.util.ArrayList; import java.util.Arrays; import java.util.List; import java.util.regex.Matcher; import java.util.regex.Pattern; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IAdaptable; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.IMenuManager; import org.eclipse.jface.action.MenuManager; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.dialogs.TitleAreaDialog; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.layout.GridLayoutFactory; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.ListViewer; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.ViewerComparator; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.SashForm; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.Shell; import com.aptana.core.CoreStrings; import com.aptana.core.util.StringUtil; import com.aptana.ide.core.io.IConnectionPoint; import com.aptana.ide.syncing.core.DefaultSiteConnection; import com.aptana.ide.syncing.core.ISiteConnection; import com.aptana.ide.syncing.core.SyncingPlugin; import com.aptana.ide.syncing.ui.internal.SiteConnectionPropertiesWidget; import com.aptana.ide.syncing.ui.internal.SyncUtils; import com.aptana.ui.IDialogConstants; import com.aptana.ui.UIPlugin; import com.aptana.ui.util.SWTUtils; import com.aptana.ui.util.UIUtils; /** * @author Max Stepanov */ public class SiteConnectionsEditorDialog extends TitleAreaDialog implements SiteConnectionPropertiesWidget.Client { private ISiteConnection initialSelection; private ListViewer sitesViewer; private Button addButton; private Button removeButton; private SiteConnectionPropertiesWidget sitePropertiesWidget; private List<ISiteConnection> sites = new ArrayList<ISiteConnection>(); /** * @param parentShell */ public SiteConnectionsEditorDialog(Shell parentShell) { super(parentShell); setShellStyle(getShellStyle() | SWT.RESIZE); setHelpAvailable(false); sites.add(DefaultSiteConnection.getInstance()); sites.addAll(Arrays.asList(SyncingPlugin.getSiteConnectionManager().getSiteConnections())); setSelection(DefaultSiteConnection.getInstance()); } public void setCreateNew(String name, IAdaptable source, IAdaptable destination) { IConnectionPoint sourceConnection = SyncUtils.findOrCreateConnectionPointFor(source); IConnectionPoint destinationConnection = SyncUtils.findOrCreateConnectionPointFor(destination); ISiteConnection siteConnection = SyncingPlugin.getSiteConnectionManager().createSiteConnection(); siteConnection.setName(createUniqueSiteName(name)); siteConnection.setSource(sourceConnection); siteConnection.setDestination(destinationConnection); sites.add(siteConnection); if (sitesViewer != null) { sitesViewer.refresh(); } setSelection(siteConnection); } protected void configureShell(Shell newShell) { super.configureShell(newShell); newShell.setText(Messages.SiteConnectionsEditorDialog_DialogTitle); } protected Control createDialogArea(Composite parent) { Composite dialogArea = (Composite) super.createDialogArea(parent); setTitle(Messages.SiteConnectionsEditorDialog_Title); setMessage(Messages.SiteConnectionsEditorDialog_Message); Composite container = new Composite(dialogArea, SWT.NONE); container.setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create()); container.setLayout(GridLayoutFactory.swtDefaults() .margins(convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN), convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN)) .spacing(convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING), convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING)) .create()); SashForm sashForm = new SashForm(container, SWT.HORIZONTAL); sashForm.setLayoutData(GridDataFactory.fillDefaults().hint(SWT.DEFAULT, 400).grab(true, true).create()); /* column 1 - the list of connections */ Group group = new Group(sashForm, SWT.NONE); group.setText(Messages.SiteConnectionsEditorDialog_LBL_ConnectionGroup); group.setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create()); group.setLayout(GridLayoutFactory.swtDefaults().numColumns(2).create()); sitesViewer = new ListViewer(group, SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER); sitesViewer.getControl().setLayoutData(GridDataFactory.fillDefaults().grab(true, true).span(2, 1).create()); sitesViewer.setContentProvider(ArrayContentProvider.getInstance()); sitesViewer.setLabelProvider(new SitesLabelProvider()); sitesViewer.setComparator(new SitesSorter()); sitesViewer.setInput(sites); addButton = new Button(group, SWT.PUSH); addButton.setLayoutData(GridDataFactory.swtDefaults().create()); addButton.setImage(SWTUtils.getImage(UIPlugin.getDefault(), "/icons/add.gif")); //$NON-NLS-1$ addButton.setToolTipText(StringUtil.ellipsify(CoreStrings.ADD)); removeButton = new Button(group, SWT.PUSH); removeButton.setLayoutData(GridDataFactory.swtDefaults().create()); removeButton.setImage(SWTUtils.getImage(UIPlugin.getDefault(), "/icons/delete.gif")); //$NON-NLS-1$ removeButton.setToolTipText(CoreStrings.REMOVE); /* column 2 - the details of the selected connection */ Composite composite = new Composite(sashForm, SWT.NONE); composite.setLayout(GridLayoutFactory.fillDefaults().create()); sitePropertiesWidget = new SiteConnectionPropertiesWidget(composite, SWT.NONE, this); sitePropertiesWidget.setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create()); sitePropertiesWidget.setSource(null); sashForm.setWeights(new int[] { 30, 70 }); /* -- */ sitesViewer.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { ISiteConnection selection = (ISiteConnection) ((IStructuredSelection) event.getSelection()) .getFirstElement(); if (selection != sitePropertiesWidget.getSource()) { if (doSelectionChange()) { sitePropertiesWidget.setSource(selection); } else { sitesViewer.setSelection(new StructuredSelection(sitePropertiesWidget.getSource()), true); } } removeButton.setEnabled( !event.getSelection().isEmpty() && selection != DefaultSiteConnection.getInstance()); } }); MenuManager menuManager = new MenuManager(); createActions(menuManager); sitesViewer.getControl().setMenu(menuManager.createContextMenu(sitesViewer.getControl())); addButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { if (doSelectionChange()) { setCreateNew(Messages.SiteConnectionsEditorDialog_LBL_NewConnection, null, null); } else { sitesViewer.setSelection(new StructuredSelection(sitePropertiesWidget.getSource()), true); } } }); removeButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { if (!sitesViewer.getSelection().isEmpty()) { if (MessageDialog.openConfirm(getShell(), Messages.SiteConnectionsEditorDialog_DeleteConfirm_Title, Messages.SiteConnectionsEditorDialog_DeleteConfirm_Message)) { ISiteConnection selection = (ISiteConnection) ((IStructuredSelection) sitesViewer .getSelection()).getFirstElement(); int newSelectionIndex = sitesViewer.getList().getSelectionIndex() - 1; SyncingPlugin.getSiteConnectionManager().removeSiteConnection(selection); sites.remove(selection); sitePropertiesWidget.setSource(null); sitesViewer.refresh(); if (newSelectionIndex > -1 && newSelectionIndex < sitesViewer.getList().getItemCount()) { setSelection((newSelectionIndex == 0) ? DefaultSiteConnection.getInstance() : sites.get(newSelectionIndex - 1)); } } } } }); return dialogArea; } /* * (non-Javadoc) * @see org.eclipse.jface.dialogs.TitleAreaDialog#createContents(org.eclipse.swt.widgets.Composite) */ @Override protected Control createContents(Composite parent) { try { return super.createContents(parent); } finally { if (initialSelection != null) { sitesViewer.setSelection(new StructuredSelection(initialSelection), true); } } } protected void createActions(IMenuManager menuManager) { menuManager.add(new Action(Messages.SiteConnectionsEditorDialog_LBL_Duplicate) { @Override public void run() { ISiteConnection siteConnection = (ISiteConnection) ((IStructuredSelection) sitesViewer .getSelection()).getFirstElement(); if (siteConnection != null && doSelectionChange()) { try { ISiteConnection newSite = SyncingPlugin.getSiteConnectionManager() .cloneSiteConnection(siteConnection); newSite.setName(MessageFormat.format("Copy of {0}", siteConnection.getName())); //$NON-NLS-1$ sites.add(newSite); sitesViewer.refresh(); sitesViewer.setSelection(new StructuredSelection(newSite), true); } catch (CoreException e) { UIUtils.showErrorMessage(Messages.SiteConnectionsEditorDialog_ERR_Duplicate, e); } } } }); } protected void createButtonsForButtonBar(Composite parent) { createButton(parent, IDialogConstants.APPLY_ID, IDialogConstants.APPLY_LABEL, false); createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, false); createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false); } protected boolean doSelectionChange() { if (sitePropertiesWidget.isChanged()) { MessageDialog dlg = new MessageDialog(getShell(), Messages.SiteConnectionsEditorDialog_SaveConfirm_Title, null, MessageFormat.format(Messages.SiteConnectionsEditorDialog_SaveConfirm_Message, sitePropertiesWidget.getSource().getName()), MessageDialog.QUESTION, new String[] { IDialogConstants.NO_LABEL, IDialogConstants.YES_LABEL, IDialogConstants.CANCEL_LABEL }, 1); switch (dlg.open()) { case 1: if (sitePropertiesWidget.applyChanges()) { break; } else { // unresolved error exists in the current selection MessageDialog.openWarning(getShell(), Messages.SiteConnectionsEditorDialog_UnresolvedWarning_Title, Messages.SiteConnectionsEditorDialog_UnresolvedWarning_Message); } case 2: return false; } } return true; } /* * (non-Javadoc) * @see org.eclipse.jface.dialogs.TitleAreaDialog#setErrorMessage(java.lang.String) */ @Override public void setErrorMessage(String newErrorMessage) { super.setErrorMessage(newErrorMessage); boolean hasError = (newErrorMessage != null); Button button = getButton(IDialogConstants.APPLY_ID); if (button != null) { button.setEnabled(!hasError); } button = getButton(IDialogConstants.OK_ID); if (button != null) { button.setEnabled(!hasError); } } @Override protected void buttonPressed(int buttonId) { if (buttonId == IDialogConstants.APPLY_ID) { applyPressed(); } super.buttonPressed(buttonId); } @Override protected void cancelPressed() { sitePropertiesWidget.cancelChanges(); super.cancelPressed(); } @Override protected void okPressed() { if (applyPressed()) { super.okPressed(); } } protected boolean applyPressed() { boolean applied = !sitePropertiesWidget.isChanged() || sitePropertiesWidget.applyChanges(); if (applied) { sitesViewer.refresh(); } ISiteConnection siteConnection = sitePropertiesWidget.getSource(); if (siteConnection != null) { if (siteConnection != DefaultSiteConnection.getInstance()) { SyncingPlugin.getSiteConnectionManager().addSiteConnection(siteConnection); } SyncingPlugin.getSiteConnectionManager().siteConnectionChanged(siteConnection); } return applied; } public void setSelection(ISiteConnection selection) { this.initialSelection = selection; if (sitesViewer != null) { sitesViewer.setSelection(new StructuredSelection(selection), true); } } private static String createUniqueSiteName(String baseName) { Pattern pattern = Pattern.compile("^(.*) (\\d+)$"); //$NON-NLS-1$ Matcher matcher = pattern.matcher(baseName); if (matcher.matches()) { baseName = matcher.group(1); } int lastIndex = Integer.MIN_VALUE; for (ISiteConnection i : SyncingPlugin.getSiteConnectionManager().getSiteConnections()) { String siteName = i.getName(); if (siteName.startsWith(baseName)) { if (siteName.equals(baseName) && lastIndex == Integer.MIN_VALUE) { lastIndex = 1; } matcher = pattern.matcher(siteName); if (matcher.matches()) { try { lastIndex = Math.max(lastIndex, Integer.parseInt(matcher.group(2))); } catch (NumberFormatException e) { } } } } if (lastIndex == Integer.MIN_VALUE) { return baseName; } return MessageFormat.format("{0} {1}", baseName, lastIndex + 1); //$NON-NLS-1$ } private static class SitesLabelProvider extends LabelProvider { /* * (non-Javadoc) * @see org.eclipse.jface.viewers.LabelProvider#getText(java.lang.Object) */ @Override public String getText(Object element) { if (element instanceof ISiteConnection) { return ((ISiteConnection) element).getName(); } return super.getText(element); } } private static class SitesSorter extends ViewerComparator { /* * (non-Javadoc) * @see org.eclipse.jface.viewers.ViewerComparator#category(java.lang.Object) */ @Override public int category(Object element) { if (element == DefaultSiteConnection.getInstance()) { return 0; } return 1; } } }