jsf/plugins/org.eclipse.jst.jsf.facesconfig.ui/src/org/eclipse/jst/jsf/facesconfig/ui/section/OthersPageBaseSection.java - jsf/webtools.jsf - Git at Google

 /*******************************************************************************
  * Copyright (c) 2004, 2005 Sybase, Inc. 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:
  *     Sybase, Inc. - initial API and implementation
  *******************************************************************************/
 package org.eclipse.jst.jsf.facesconfig.ui.section;

 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;

 import org.eclipse.emf.common.command.Command;
 import org.eclipse.emf.common.command.CompoundCommand;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.emf.edit.command.RemoveCommand;
 import org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider;
 import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.jface.viewers.TableViewer;
 import org.eclipse.jst.jsf.facesconfig.ui.EditorMessages;
 import org.eclipse.jst.jsf.facesconfig.ui.page.IFacesConfigPage;
 import org.eclipse.jst.jsf.facesconfig.ui.page.OthersPage;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.events.SelectionListener;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.ui.forms.IManagedForm;
 import org.eclipse.ui.forms.widgets.FormToolkit;

 /**
  * @author Zhi-peng Zhang
  * @version
  */
 /**
  * The base class for the Sections in Others Page.
  */
 public abstract class OthersPageBaseSection extends AbstractFacesConfigSection {

 	/**
 	 * Table viewer for all sections based on this calss
 	 */
 	protected TableViewer tableViewer;

 	private Button removeButton;

 	/**
 	 *
 	 * @param parent
 	 * @param managedForm
 	 * @param page
 	 * @param toolkit
 	 * @param helpContextId
 	 * @param helpTooltip
 	 */
 	public OthersPageBaseSection(Composite parent, IManagedForm managedForm,
 			IFacesConfigPage page, FormToolkit toolkit, String helpContextId,
 			String helpTooltip) {
 		super(parent, managedForm, page, toolkit, helpContextId, helpTooltip);
 	}

 	/**
 	 * @param parent
 	 * @param managedForm
 	 * @param page
 	 * @param toolkit
 	 */
 	public OthersPageBaseSection(Composite parent, IManagedForm managedForm,
 			IFacesConfigPage page, FormToolkit toolkit) {
 		this(parent, managedForm, page, toolkit, null, null);
 	}

 	public void dispose() {
 		tableViewer.removeSelectionChangedListener(this);
 		tableViewer = null;
 		super.dispose();
 	}
 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.jst.jsf.facesconfig.ui.section.AbstractFacesConfigSection#createContents(org.eclipse.swt.widgets.Composite,
 	 *      org.eclipse.ui.forms.widgets.FormToolkit)
 	 */
 	protected void createContents(Composite container, FormToolkit toolkit) {
 		GridLayout layout = new GridLayout();
 		layout.numColumns = 2;
 		layout.marginWidth = layout.marginHeight = 5;
 		container.setLayout(layout);
 		createViewer(container, toolkit);
 		createOperationSection(container, toolkit);
 	}

 	/**
 	 * create TableViewer for this section. sub-class may override it to return
 	 * a new type tableViewer. for example CheckboxTableViewer.
 	 *
 	 * @param parent
 	 * @return the table viewer for this section
 	 */
 	protected TableViewer createTableViewer(Composite parent) {
 		return new TableViewer(parent, SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL
 				| SWT.BORDER);
 	}

 	/**
 	 * Config the viewer, such as set a filter and so on. Sub classes should
 	 * override this method to add filter.
 	 *
 	 * @param tableViewer1
 	 */
 	protected abstract void configTableViewer(TableViewer tableViewer1);

 	/**
 	 *
 	 * @param parent
 	 * @param toolkit
 	 */
 	protected void createViewer(Composite parent, FormToolkit toolkit) {
 		Composite tableContainer = toolkit.createComposite(parent);
 		toolkit.paintBordersFor(tableContainer);

 		GridData gd = new GridData(GridData.FILL_BOTH);
 		gd.heightHint = 200;
 		tableContainer.setLayoutData(gd);
 		tableContainer.setLayout(new GridLayout());

 		tableViewer = createTableViewer(tableContainer);
 		tableViewer.getControl()
 				.setLayoutData(new GridData(GridData.FILL_BOTH));
 		tableViewer.setContentProvider(new AdapterFactoryContentProvider(
 				getAdapterFactory()));
 		tableViewer.setLabelProvider(new AdapterFactoryLabelProvider(
 				getAdapterFactory()));
 		configTableViewer(tableViewer);

 		tableViewer.addSelectionChangedListener(this);
 	}

 	/**
 	 *
 	 * @param parent
 	 * @param toolkit
 	 */
 	protected void createOperationSection(Composite parent, FormToolkit toolkit) {
 		Composite operationContainer = toolkit.createComposite(parent);
 		operationContainer.setLayoutData(new GridData(GridData.FILL_VERTICAL));

 		operationContainer.setLayout(new GridLayout());

 		Button addButton = toolkit.createButton(operationContainer,
 				EditorMessages.UI_Button_Add, SWT.PUSH);
 		GridData gd = new GridData(GridData.FILL_HORIZONTAL
 				| GridData.VERTICAL_ALIGN_BEGINNING);
 		gd.grabExcessHorizontalSpace = false;
 		addButton.setLayoutData(gd);

 		addButton.addSelectionListener(new SelectionListener() {
 			public void widgetSelected(SelectionEvent e) {
 				addButtonSelected(e);
 			}

 			public void widgetDefaultSelected(SelectionEvent e) {
 				addButtonSelected(e);
 			}
 		});

 		setRemoveButton(toolkit.createButton(operationContainer,
 				EditorMessages.UI_Button_Remove, SWT.PUSH));

 		getRemoveButton().setEnabled(true);
 		gd = new GridData(GridData.FILL_HORIZONTAL
 				| GridData.VERTICAL_ALIGN_BEGINNING);
 		gd.grabExcessHorizontalSpace = false;
 		getRemoveButton().setLayoutData(gd);
 		getRemoveButton().addSelectionListener(new SelectionListener() {
 			public void widgetSelected(SelectionEvent e) {
 				removeButtonSelected(e);
 			}

 			public void widgetDefaultSelected(SelectionEvent e) {
 				removeButtonSelected(e);
 			}
 		});
 	}


 	abstract void addButtonSelected(SelectionEvent e);

 	/**
 	 * Respond to selection of the remove button
 	 * @param e
 	 */
 	protected void removeButtonSelected(SelectionEvent e) {
 		IStructuredSelection ssel = StructuredSelection.EMPTY;
 		ISelection selection = getSelection();
 		if (selection instanceof IStructuredSelection) {
 			ssel = (IStructuredSelection) selection;
 		}

 		if (!ssel.isEmpty()) {
 			List commands = new ArrayList(ssel.size());
 			for (Iterator iter = ssel.iterator(); iter.hasNext();) {
 				EObject element = (EObject) iter.next();
 				if (element.eContainer().eContents().size() == 1) {
 					// if the parent only have this one child, then remove it
 					// together.
 					element = element.eContainer();
 				}
 				Command command = RemoveCommand.create(getEditingDomain(),
 						element);
 				commands.add(command);

 			}

 			CompoundCommand command = new CompoundCommand(commands);
 			if (command.canExecute()) {
 				getEditingDomain().getCommandStack().execute(command);
 			}
 		}
 	}

 	public ISelection getSelection() {
 		return tableViewer.getSelection();
 	}

 	/**
 	 * update all buttons with the current selection
 	 */
 	protected void updateButtons() {
 		if (!getRemoveButton().isDisposed()) {
 			IStructuredSelection ssel = (IStructuredSelection) getSelection();
 			getRemoveButton().setEnabled(!ssel.isEmpty());
 		}
 	}

 	public void refresh() {
 		super.refresh();
 		tableViewer.refresh();
 		updateButtons();
 	}

 	public void setSelection(ISelection selection) {
 		tableViewer.setSelection(selection);
 	}

 	/**
 	 * @return Returns the tableViewer.
 	 */
 	public TableViewer getTableViewer() {
 		return tableViewer;
 	}

 	public void refreshAll() {
 		setViewerInput(getInput());
 		updateButtons();
 	}

 	/**
 	 * set the structuredViewer's input
 	 *
 	 * @param input
 	 */
 	abstract protected void setViewerInput(Object input);

 	public void expansionStateChanged(boolean expanded) {
 		if (expanded) {
 			if (tableViewer.getInput() == null) {
 				refreshAll();
 			}
 			tableViewer.setSelection(tableViewer.getSelection());
 		} else {
 			tableViewer.setSelection(null);
 		}
 		super.expansionStateChanged(expanded);
 	}

 	protected void expansionStateChanging(boolean expanding) {
 		if (!expanding) {
 			GridData gd = new GridData(GridData.FILL_HORIZONTAL);
 			this.getSection().setLayoutData(gd);
 		} else {
 			((OthersPage) getPage()).closeOtherSections(this);

 			GridData gd = new GridData(GridData.FILL_BOTH);
 			this.getSection().setLayoutData(gd);
 		}

 		super.expansionStateChanging(expanding);
 	}

 	public void selectionChanged(SelectionChangedEvent event) {
 		super.selectionChanged(event);
 		updateButtons();
 	}

     /**
      * @param removeButton
      */
     protected void setRemoveButton(Button removeButton) {
         this.removeButton = removeButton;
     }

     /**
      * @return the button widget
      */
     protected Button getRemoveButton() {
         return removeButton;
     }
 }
	/*******************************************************************************
	* Copyright (c) 2004, 2005 Sybase, Inc. 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:
	* Sybase, Inc. - initial API and implementation
	*******************************************************************************/
	package org.eclipse.jst.jsf.facesconfig.ui.section;

	import java.util.ArrayList;
	import java.util.Iterator;
	import java.util.List;

	import org.eclipse.emf.common.command.Command;
	import org.eclipse.emf.common.command.CompoundCommand;
	import org.eclipse.emf.ecore.EObject;
	import org.eclipse.emf.edit.command.RemoveCommand;
	import org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider;
	import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.SelectionChangedEvent;
	import org.eclipse.jface.viewers.StructuredSelection;
	import org.eclipse.jface.viewers.TableViewer;
	import org.eclipse.jst.jsf.facesconfig.ui.EditorMessages;
	import org.eclipse.jst.jsf.facesconfig.ui.page.IFacesConfigPage;
	import org.eclipse.jst.jsf.facesconfig.ui.page.OthersPage;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.events.SelectionListener;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.ui.forms.IManagedForm;
	import org.eclipse.ui.forms.widgets.FormToolkit;

	/**
	* @author Zhi-peng Zhang
	* @version
	*/
	/**
	* The base class for the Sections in Others Page.
	*/
	public abstract class OthersPageBaseSection extends AbstractFacesConfigSection {

	/**
	* Table viewer for all sections based on this calss
	*/
	protected TableViewer tableViewer;

	private Button removeButton;

	/**
	*
	* @param parent
	* @param managedForm
	* @param page
	* @param toolkit
	* @param helpContextId
	* @param helpTooltip
	*/
	public OthersPageBaseSection(Composite parent, IManagedForm managedForm,
	IFacesConfigPage page, FormToolkit toolkit, String helpContextId,
	String helpTooltip) {
	super(parent, managedForm, page, toolkit, helpContextId, helpTooltip);
	}

	/**
	* @param parent
	* @param managedForm
	* @param page
	* @param toolkit
	*/
	public OthersPageBaseSection(Composite parent, IManagedForm managedForm,
	IFacesConfigPage page, FormToolkit toolkit) {
	this(parent, managedForm, page, toolkit, null, null);
	}

	public void dispose() {
	tableViewer.removeSelectionChangedListener(this);
	tableViewer = null;
	super.dispose();
	}
	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.jst.jsf.facesconfig.ui.section.AbstractFacesConfigSection#createContents(org.eclipse.swt.widgets.Composite,
	* org.eclipse.ui.forms.widgets.FormToolkit)
	*/
	protected void createContents(Composite container, FormToolkit toolkit) {
	GridLayout layout = new GridLayout();
	layout.numColumns = 2;
	layout.marginWidth = layout.marginHeight = 5;
	container.setLayout(layout);
	createViewer(container, toolkit);
	createOperationSection(container, toolkit);
	}

	/**
	* create TableViewer for this section. sub-class may override it to return
	* a new type tableViewer. for example CheckboxTableViewer.
	*
	* @param parent
	* @return the table viewer for this section
	*/
	protected TableViewer createTableViewer(Composite parent) {
	return new TableViewer(parent, SWT.SINGLE \| SWT.H_SCROLL \| SWT.V_SCROLL
	\| SWT.BORDER);
	}

	/**
	* Config the viewer, such as set a filter and so on. Sub classes should
	* override this method to add filter.
	*
	* @param tableViewer1
	*/
	protected abstract void configTableViewer(TableViewer tableViewer1);

	/**
	*
	* @param parent
	* @param toolkit
	*/
	protected void createViewer(Composite parent, FormToolkit toolkit) {
	Composite tableContainer = toolkit.createComposite(parent);
	toolkit.paintBordersFor(tableContainer);

	GridData gd = new GridData(GridData.FILL_BOTH);
	gd.heightHint = 200;
	tableContainer.setLayoutData(gd);
	tableContainer.setLayout(new GridLayout());

	tableViewer = createTableViewer(tableContainer);
	tableViewer.getControl()
	.setLayoutData(new GridData(GridData.FILL_BOTH));
	tableViewer.setContentProvider(new AdapterFactoryContentProvider(
	getAdapterFactory()));
	tableViewer.setLabelProvider(new AdapterFactoryLabelProvider(
	getAdapterFactory()));
	configTableViewer(tableViewer);

	tableViewer.addSelectionChangedListener(this);
	}

	/**
	*
	* @param parent
	* @param toolkit
	*/
	protected void createOperationSection(Composite parent, FormToolkit toolkit) {
	Composite operationContainer = toolkit.createComposite(parent);
	operationContainer.setLayoutData(new GridData(GridData.FILL_VERTICAL));

	operationContainer.setLayout(new GridLayout());

	Button addButton = toolkit.createButton(operationContainer,
	EditorMessages.UI_Button_Add, SWT.PUSH);
	GridData gd = new GridData(GridData.FILL_HORIZONTAL
	\| GridData.VERTICAL_ALIGN_BEGINNING);
	gd.grabExcessHorizontalSpace = false;
	addButton.setLayoutData(gd);

	addButton.addSelectionListener(new SelectionListener() {
	public void widgetSelected(SelectionEvent e) {
	addButtonSelected(e);
	}

	public void widgetDefaultSelected(SelectionEvent e) {
	addButtonSelected(e);
	}
	});

	setRemoveButton(toolkit.createButton(operationContainer,
	EditorMessages.UI_Button_Remove, SWT.PUSH));

	getRemoveButton().setEnabled(true);
	gd = new GridData(GridData.FILL_HORIZONTAL
	\| GridData.VERTICAL_ALIGN_BEGINNING);
	gd.grabExcessHorizontalSpace = false;
	getRemoveButton().setLayoutData(gd);
	getRemoveButton().addSelectionListener(new SelectionListener() {
	public void widgetSelected(SelectionEvent e) {
	removeButtonSelected(e);
	}

	public void widgetDefaultSelected(SelectionEvent e) {
	removeButtonSelected(e);
	}
	});
	}


	abstract void addButtonSelected(SelectionEvent e);

	/**
	* Respond to selection of the remove button
	* @param e
	*/
	protected void removeButtonSelected(SelectionEvent e) {
	IStructuredSelection ssel = StructuredSelection.EMPTY;
	ISelection selection = getSelection();
	if (selection instanceof IStructuredSelection) {
	ssel = (IStructuredSelection) selection;
	}

	if (!ssel.isEmpty()) {
	List commands = new ArrayList(ssel.size());
	for (Iterator iter = ssel.iterator(); iter.hasNext();) {
	EObject element = (EObject) iter.next();
	if (element.eContainer().eContents().size() == 1) {
	// if the parent only have this one child, then remove it
	// together.
	element = element.eContainer();
	}
	Command command = RemoveCommand.create(getEditingDomain(),
	element);
	commands.add(command);

	}

	CompoundCommand command = new CompoundCommand(commands);
	if (command.canExecute()) {
	getEditingDomain().getCommandStack().execute(command);
	}
	}
	}

	public ISelection getSelection() {
	return tableViewer.getSelection();
	}

	/**
	* update all buttons with the current selection
	*/
	protected void updateButtons() {
	if (!getRemoveButton().isDisposed()) {
	IStructuredSelection ssel = (IStructuredSelection) getSelection();
	getRemoveButton().setEnabled(!ssel.isEmpty());
	}
	}

	public void refresh() {
	super.refresh();
	tableViewer.refresh();
	updateButtons();
	}

	public void setSelection(ISelection selection) {
	tableViewer.setSelection(selection);
	}

	/**
	* @return Returns the tableViewer.
	*/
	public TableViewer getTableViewer() {
	return tableViewer;
	}

	public void refreshAll() {
	setViewerInput(getInput());
	updateButtons();
	}

	/**
	* set the structuredViewer's input
	*
	* @param input
	*/
	abstract protected void setViewerInput(Object input);

	public void expansionStateChanged(boolean expanded) {
	if (expanded) {
	if (tableViewer.getInput() == null) {
	refreshAll();
	}
	tableViewer.setSelection(tableViewer.getSelection());
	} else {
	tableViewer.setSelection(null);
	}
	super.expansionStateChanged(expanded);
	}

	protected void expansionStateChanging(boolean expanding) {
	if (!expanding) {
	GridData gd = new GridData(GridData.FILL_HORIZONTAL);
	this.getSection().setLayoutData(gd);
	} else {
	((OthersPage) getPage()).closeOtherSections(this);

	GridData gd = new GridData(GridData.FILL_BOTH);
	this.getSection().setLayoutData(gd);
	}

	super.expansionStateChanging(expanding);
	}

	public void selectionChanged(SelectionChangedEvent event) {
	super.selectionChanged(event);
	updateButtons();
	}

	/**
	* @param removeButton
	*/
	protected void setRemoveButton(Button removeButton) {
	this.removeButton = removeButton;
	}

	/**
	* @return the button widget
	*/
	protected Button getRemoveButton() {
	return removeButton;
	}
	}