Java tutorial
/******************************************************************************* * Copyright (c) 2000, 2008 IBM Corporation 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: * IBM Corporation - initial API and implementation *******************************************************************************/ package com.liferay.ide.portlet.ui.editor; import com.liferay.ide.core.model.IBaseModel; import com.liferay.ide.core.model.IModelChangedEvent; import com.liferay.ide.core.model.IModelChangedListener; import com.liferay.ide.core.util.StringPool; import com.liferay.ide.portlet.core.IPluginPackageModel; import com.liferay.ide.portlet.core.PluginPackageModel; import com.liferay.ide.project.ui.dialog.LiferayProjectSelectionDialog; import com.liferay.ide.ui.form.DefaultContentProvider; import com.liferay.ide.ui.form.FormLayoutFactory; import com.liferay.ide.ui.form.IDEFormPage; import com.liferay.ide.ui.form.TablePart; import com.liferay.ide.ui.form.TableSection; import java.util.Collections; import java.util.Iterator; import java.util.Vector; import org.eclipse.core.resources.IProject; import org.eclipse.jdt.core.IJavaProject; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.IMenuManager; import org.eclipse.jface.action.ToolBarManager; import org.eclipse.jface.util.IPropertyChangeListener; import org.eclipse.jface.util.PropertyChangeEvent; import org.eclipse.jface.viewers.IStructuredContentProvider; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.ITableLabelProvider; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.Viewer; import org.eclipse.jface.viewers.ViewerFilter; import org.eclipse.jface.window.Window; import org.eclipse.osgi.util.NLS; import org.eclipse.swt.SWT; import org.eclipse.swt.events.DisposeEvent; import org.eclipse.swt.events.DisposeListener; import org.eclipse.swt.graphics.Cursor; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.TableItem; import org.eclipse.swt.widgets.ToolBar; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.actions.ActionFactory; import org.eclipse.ui.forms.widgets.FormToolkit; import org.eclipse.ui.forms.widgets.Section; import org.eclipse.ui.ide.IDE.SharedImages; public class RequiredDeploymentContextsSection extends TableSection implements IModelChangedListener, IPropertyChangeListener { class ContextsContentProvider extends DefaultContentProvider implements IStructuredContentProvider { public Object[] getElements(Object parent) { if (contexts == null) { createServiceDepsArray(); } return contexts.toArray(); } } class ContextsLabelProvider extends LabelProvider implements ITableLabelProvider { public Image getColumnImage(Object element, int columnIndex) { return PlatformUI.getWorkbench().getSharedImages().getImage(SharedImages.IMG_OBJ_PROJECT); } public String getColumnText(Object element, int columnIndex) { if (element instanceof String) { return element.toString(); } return StringPool.EMPTY; } } private static final int ADD_INDEX = 0; private static final int DOWN_INDEX = 3; private static final int REMOVE_INDEX = 1; private static final int UP_INDEX = 2; private Action fAddAction; private Action fRemoveAction; // private Action fSortAction; private TableViewer fViewer; private Vector<String> contexts; public RequiredDeploymentContextsSection(IDEFormPage page, Composite parent, String[] labels) { super(page, parent, Section.DESCRIPTION, labels); getSection().setText(Msgs.requiredDeploymentContexts); getSection().setDescription(Msgs.specifyPlugins); getSection().getTextClient().getParent().layout(true); getTablePart().setEditable(true); } public void createClient(Section section, FormToolkit toolkit) { Composite container = createClientContainer(section, 2, toolkit); createViewerPartControl(container, SWT.MULTI, 2, toolkit); TablePart tablePart = getTablePart(); fViewer = tablePart.getTableViewer(); fViewer.setContentProvider(new ContextsContentProvider()); fViewer.setLabelProvider(new ContextsLabelProvider()); toolkit.paintBordersFor(container); makeActions(); section.setClient(container); GridData gd = new GridData(GridData.FILL_BOTH); gd.minimumWidth = 250; gd.grabExcessVerticalSpace = true; section.setLayout(FormLayoutFactory.createClearGridLayout(false, 1)); section.setLayoutData(gd); section.setText(Msgs.serviceDependencies); createSectionToolbar(section, toolkit); initialize(); } public void dispose() { IBaseModel model = getPage().getModel(); if (model != null) { model.dispose(); } super.dispose(); } /* (non-Javadoc) * @see org.eclipse.pde.internal.ui.editor.PDESection#doGlobalAction(java.lang.String) */ public boolean doGlobalAction(String actionId) { if (!isEditable()) { return false; } if (actionId.equals(ActionFactory.DELETE.getId())) { handleRemove(); return true; } if (actionId.equals(ActionFactory.CUT.getId())) { // delete here and let the editor transfer // the selection to the clipboard handleRemove(); return false; } if (actionId.equals(ActionFactory.PASTE.getId())) { doPaste(); return true; } return false; } public void initialize() { PluginPackageModel model = (PluginPackageModel) getPage().getModel(); if (model == null) return; fViewer.setInput(model); updateButtons(); model.addModelChangedListener(this); fAddAction.setEnabled(model.isEditable()); fRemoveAction.setEnabled(model.isEditable()); } public void modelChanged(IModelChangedEvent event) { if (event.getChangeType() == IModelChangedEvent.WORLD_CHANGED) { markStale(); return; } if (event.getChangedProperty() == IPluginPackageModel.PROPERTY_PORTAL_DEPENDENCY_JARS || event.getChangedProperty() == IPluginPackageModel.PROPERTY_DEPLOY_EXCLUDE || event.getChangedProperty() == IPluginPackageModel.PROPERTY_PORTAL_DEPENDENCY_TLDS || event.getChangedProperty() == IPluginPackageModel.PROPERTY_REQUIRED_DEPLOYMENT_CONTEXTS) { refresh(); updateButtons(); return; } } public void propertyChange(PropertyChangeEvent event) { // if (fSortAction.equals(event.getSource()) && IAction.RESULT.equals(event.getProperty())) { // updateUpDownButtons(); // } } public void refresh() { contexts = null; fViewer.refresh(); super.refresh(); } public void setFocus() { if (fViewer != null) fViewer.getTable().setFocus(); } public boolean setFormInput(Object object) { // if (object instanceof IPluginImport) { // ImportObject iobj = new ImportObject((IPluginImport) object); // fImportViewer.setSelection(new StructuredSelection(iobj), true); // return true; // } return false; } public void swap(int index1, int index2) { Table table = getTablePart().getTableViewer().getTable(); String dep1 = (String) table.getItem(index1).getData(); String dep2 = (String) table.getItem(index2).getData(); PluginPackageModel model = (PluginPackageModel) getPage().getModel(); model.swapDependencies(PluginPackageModel.PROPERTY_REQUIRED_DEPLOYMENT_CONTEXTS, dep1, dep2); } private void createSectionToolbar(Section section, FormToolkit toolkit) { ToolBarManager toolBarManager = new ToolBarManager(SWT.FLAT); ToolBar toolbar = toolBarManager.createControl(section); final Cursor handCursor = new Cursor(Display.getCurrent(), SWT.CURSOR_HAND); toolbar.setCursor(handCursor); // Cursor needs to be explicitly disposed toolbar.addDisposeListener(new DisposeListener() { public void widgetDisposed(DisposeEvent e) { if ((handCursor != null) && (handCursor.isDisposed() == false)) { handCursor.dispose(); } } }); // Add sort action to the tool bar // fSortAction = new SortAction(fViewer, "Sort alphabetically", null, null, this); // toolBarManager.add(fSortAction); toolBarManager.update(true); section.setTextClient(toolbar); } private void handleAdd() { PluginPackageModel model = (PluginPackageModel) getPage().getModel(); final String[] existingServiceDeps = model.getRequiredDeploymentContexts(); ViewerFilter filter = new ViewerFilter() { @Override public boolean select(Viewer viewer, Object parentElement, Object element) { if (element instanceof IJavaProject) { IProject project = ((IJavaProject) element).getProject(); for (String existingDep : existingServiceDeps) { if (project.getName().equals(existingDep)) { return false; } } if (project.equals(getPage().getLiferayFormEditor().getCommonProject())) { return false; } return true; } else { return false; } } }; LiferayProjectSelectionDialog dialog = new LiferayProjectSelectionDialog(getPage().getShell(), filter); dialog.create(); if (dialog.open() == Window.OK) { Object[] selectedProjects = dialog.getResult(); try { for (int i = 0; i < selectedProjects.length; i++) { IJavaProject project = (IJavaProject) selectedProjects[i]; if (project.exists()) { model.addRequiredDeploymentContext(project.getProject().getName()); } } } catch (Exception e) { } } } private void handleDown() { Table table = getTablePart().getTableViewer().getTable(); int index = table.getSelectionIndex(); if (index == table.getItemCount() - 1) return; swap(index, index + 1); } @SuppressWarnings("rawtypes") private void handleRemove() { IStructuredSelection ssel = (IStructuredSelection) fViewer.getSelection(); PluginPackageModel model = (PluginPackageModel) getPage().getModel(); int i = 0; String[] removedServiceDeps = new String[ssel.size()]; for (Iterator iter = ssel.iterator(); iter.hasNext(); i++) { removedServiceDeps[i] = iter.next().toString(); } model.removeRequiredDeploymentContexts(removedServiceDeps); updateButtons(); } private void handleUp() { int index = getTablePart().getTableViewer().getTable().getSelectionIndex(); if (index < 1) return; swap(index, index - 1); } private void makeActions() { fAddAction = new Action(Msgs.add) { public void run() { handleAdd(); } }; fRemoveAction = new Action(Msgs.remove) { public void run() { handleRemove(); } }; } private void updateButtons() { Table table = getTablePart().getTableViewer().getTable(); TableItem[] selection = table.getSelection(); boolean hasSelection = selection.length > 0; TablePart tablePart = getTablePart(); tablePart.setButtonEnabled(ADD_INDEX, isEditable()); updateUpDownButtons(); tablePart.setButtonEnabled(REMOVE_INDEX, isEditable() && hasSelection); } private void updateUpDownButtons() { TablePart tablePart = getTablePart(); // if (fSortAction.isChecked()) { // tablePart.setButtonEnabled(UP_INDEX, false); // tablePart.setButtonEnabled(DOWN_INDEX, false); // return; // } Table table = getTablePart().getTableViewer().getTable(); TableItem[] selection = table.getSelection(); boolean hasSelection = selection.length > 0; boolean canMove = table.getItemCount() > 1 && selection.length == 1; tablePart.setButtonEnabled(UP_INDEX, canMove && isEditable() && hasSelection && table.getSelectionIndex() > 0); tablePart.setButtonEnabled(DOWN_INDEX, canMove && hasSelection && isEditable() && table.getSelectionIndex() < table.getItemCount() - 1); } protected void buttonSelected(int index) { switch (index) { case ADD_INDEX: handleAdd(); break; case REMOVE_INDEX: handleRemove(); break; case UP_INDEX: handleUp(); break; case DOWN_INDEX: handleDown(); break; } } /* (non-Javadoc) * @see org.eclipse.pde.internal.ui.editor.StructuredViewerSection#canPaste(java.lang.Object, java.lang.Object[]) */ protected boolean canPaste(Object targetObject, Object[] sourceObjects) { return false; } protected boolean createCount() { return true; } protected void createServiceDepsArray() { contexts = new Vector<String>(); PluginPackageModel model = (PluginPackageModel) getPage().getModel(); String[] requiredDeploymentContexts = model.getRequiredDeploymentContexts(); Collections.addAll(contexts, requiredDeploymentContexts); } /* (non-Javadoc) * @see org.eclipse.pde.internal.ui.editor.StructuredViewerSection#doPaste(java.lang.Object, java.lang.Object[]) */ protected void doPaste(Object targetObject, Object[] sourceObjects) { // Get the model } protected void fillContextMenu(IMenuManager manager) { } protected void handleDoubleClick(IStructuredSelection sel) { } /* (non-Javadoc) * @see org.eclipse.pde.internal.ui.editor.StructuredViewerSection#isDragAndDropEnabled() */ protected boolean isDragAndDropEnabled() { return false; } protected void selectionChanged(IStructuredSelection sel) { getPage().getFormEditor().setSelection(sel); updateButtons(); } // private boolean isTreeViewerSorted() { // if (fSortAction == null) { // return false; // } // return fSortAction.isChecked(); // } private static class Msgs extends NLS { public static String add; public static String remove; public static String requiredDeploymentContexts; public static String serviceDependencies; public static String specifyPlugins; static { initializeMessages(RequiredDeploymentContextsSection.class.getName(), Msgs.class); } } }