/*******************************************************************************
* Copyright (c) 2002, 2011 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
* Jens Lukowski/Innoopract - initial renaming/restructuring
*
*******************************************************************************/
package org.eclipse.wst.xml.ui.internal.catalog;
import java.util.Iterator;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Point;
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.swt.widgets.Shell;
import org.eclipse.wst.xml.core.internal.XMLCorePlugin;
import org.eclipse.wst.xml.core.internal.catalog.Catalog;
import org.eclipse.wst.xml.core.internal.catalog.CatalogElement;
import org.eclipse.wst.xml.core.internal.catalog.provisional.ICatalog;
import org.eclipse.wst.xml.core.internal.catalog.provisional.ICatalogElement;
import org.eclipse.wst.xml.ui.internal.XMLUIPlugin;
public class XMLCatalogEntriesView extends Composite {
protected Button newButton;
protected Button editButton;
protected Button deleteButton;
protected Button clearCacheButton;
protected XMLCatalogTreeViewer tableViewer;
protected ICatalog workingUserCatalog;
protected ICatalog systemCatalog;
// protected boolean isPageEnabled = true;
public XMLCatalogEntriesView(Composite parent, ICatalog workingUserCatalog, ICatalog systemCatalog) {
super(parent, SWT.NONE);
this.workingUserCatalog = workingUserCatalog;
this.systemCatalog = systemCatalog;
GridLayout gridLayout = new GridLayout();
gridLayout.numColumns = 2;
this.setLayout(gridLayout);
tableViewer = createTableViewer(this);
tableViewer.setInput("dummy"); //$NON-NLS-1$
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=202692
// specifically set size of tree before expanding it
Point initialSize = tableViewer.getTree().computeSize(SWT.DEFAULT, SWT.DEFAULT);
GridData gridData = new GridData(GridData.FILL_BOTH);
gridData.widthHint = initialSize.x;
gridData.heightHint = initialSize.y;
tableViewer.getControl().setLayoutData(gridData);
tableViewer.expandToLevel(2);
tableViewer.reveal(XMLCatalogTreeViewer.USER_SPECIFIED_ENTRIES_OBJECT);
ISelectionChangedListener listener = new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent event) {
updateWidgetEnabledState();
}
};
tableViewer.addSelectionChangedListener(listener);
createButtons(this);
}
public static String removeLeadingSlash(String uri) {
// remove leading slash from the value to avoid the whole leading
// slash ambiguity problem
//
if (uri != null) {
while (uri.startsWith("/") || uri.startsWith("\\")) //$NON-NLS-1$ //$NON-NLS-2$
{
uri = uri.substring(1);
}
}
return uri;
}
protected XMLCatalogTreeViewer createTableViewer(Composite parent) {
String headings[] = new String[2];
headings[0] = XMLCatalogMessages.UI_LABEL_KEY;
headings[1] = XMLCatalogMessages.UI_LABEL_URI;
XMLCatalogTreeViewer theTableViewer = new XMLCatalogTreeViewer(parent, workingUserCatalog, systemCatalog);
return theTableViewer;
}
protected void createButtons(Composite parent) {
Composite composite = new Composite(parent, SWT.NONE);
GridData gd = new GridData();
gd.verticalAlignment = GridData.BEGINNING;
composite.setLayoutData(gd);
GridLayout gridLayout = new GridLayout();
gridLayout.marginHeight = 0;
gridLayout.marginWidth = 0;
gridLayout.marginLeft = 3;
composite.setLayout(gridLayout);
SelectionListener selectionListener = new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
if (e.widget == newButton) {
performNew();
}
else if (e.widget == editButton) {
performEdit();
}
else if (e.widget == deleteButton) {
performDelete();
}
else if (e.widget == clearCacheButton) {
performRefresh();
}
}
};
// add the "New..." button
//
gd = new GridData();
gd.horizontalAlignment = GridData.FILL;
gd.grabExcessHorizontalSpace = true;
newButton = new Button(composite, SWT.NONE);
newButton.setText(XMLCatalogMessages.UI_BUTTON_NEW);
// WorkbenchHelp.setHelp(newButton,
// XMLBuilderContextIds.XMLP_MAPPING_NEW);
newButton.setLayoutData(gd);
newButton.addSelectionListener(selectionListener);
// add the "Edit..." button
//
gd = new GridData();
gd.horizontalAlignment = GridData.FILL;
gd.grabExcessHorizontalSpace = true;
editButton = new Button(composite, SWT.NONE);
editButton.setText(XMLCatalogMessages.UI_BUTTON_EDIT);
// WorkbenchHelp.setHelp(editButton,
// XMLBuilderContextIds.XMLP_MAPPING_EDIT);
editButton.setLayoutData(gd);
editButton.addSelectionListener(selectionListener);
// add the "Delete" button
//
gd = new GridData();
gd.horizontalAlignment = GridData.FILL;
gd.grabExcessHorizontalSpace = true;
deleteButton = new Button(composite, SWT.NONE);
deleteButton.setText(XMLCatalogMessages.UI_BUTTON_REMOVE);
// WorkbenchHelp.setHelp(deleteButton,
// XMLBuilderContextIds.XMLP_MAPPING_DELETE);
deleteButton.setLayoutData(gd);
deleteButton.addSelectionListener(selectionListener);
gd = new GridData();
gd.horizontalAlignment = GridData.FILL;
gd.grabExcessHorizontalSpace = true;
gd.verticalIndent = 9;
clearCacheButton = new Button(composite, SWT.NONE);
clearCacheButton.setText(XMLCatalogMessages.UI_BUTTON_RELOAD_CATALOG);
clearCacheButton.setLayoutData(gd);
clearCacheButton.addSelectionListener(selectionListener);
gd = new GridData();
gd.horizontalAlignment = GridData.FILL;
gd.grabExcessHorizontalSpace = true;
gd.horizontalSpan = 4;
Button hiddenButton = new Button(composite, SWT.NONE);
hiddenButton.setLayoutData(gd);
hiddenButton.setVisible(false);
hiddenButton.setEnabled(false);
// a cruddy hack so that the PreferenceDialog doesn't close every time
// we press 'enter'
//
getShell().setDefaultButton(hiddenButton);
updateWidgetEnabledState();
}
public void refresh() {
tableViewer.refresh();// XMLCatalogTreeViewer.USER_SPECIFIED_ENTRIES_OBJECT);
}
protected EditCatalogEntryDialog invokeDialog(String title, ICatalogElement entry, ICatalog catalog) {
Shell shell = XMLUIPlugin.getInstance().getWorkbench().getActiveWorkbenchWindow().getShell();
EditCatalogEntryDialog dialog = entry != null ? new EditCatalogEntryDialog(shell, entry, catalog) : new EditCatalogEntryDialog(shell, catalog);
dialog.create();
dialog.getShell().setText(title);
dialog.setBlockOnOpen(true);
dialog.open();
return dialog;
}
protected EditCatalogEntryDialog invokeDialog(String title, ICatalog catalog) {
return invokeDialog(title, null, catalog);
}
protected void performNew() {
// ICatalogEntry newEntry =
// (ICatalogEntry)workingUserCatalog.createCatalogElement(ICatalogElement.TYPE_ENTRY);
EditCatalogEntryDialog dialog = invokeDialog(XMLCatalogMessages.UI_LABEL_NEW_DIALOG_TITLE, workingUserCatalog);
ICatalogElement element = dialog.getCatalogElement();
if (dialog.getReturnCode() == Window.OK) {
workingUserCatalog.addCatalogElement(element);
tableViewer.setSelection(new StructuredSelection(element), true);
tableViewer.refresh();
}
}
protected void performEdit() {
ISelection selection = tableViewer.getSelection();
Object selectedObject = (selection instanceof IStructuredSelection) ? ((IStructuredSelection) selection).getFirstElement() : null;
if (selectedObject instanceof ICatalogElement) {
ICatalogElement oldEntry = (ICatalogElement) selectedObject;
ICatalogElement newEntry = (ICatalogElement) ((CatalogElement) oldEntry).clone();
EditCatalogEntryDialog dialog = invokeDialog(XMLCatalogMessages.UI_LABEL_EDIT_DIALOG_TITLE, newEntry, workingUserCatalog);
if (dialog.getReturnCode() == Window.OK) {
// delete the old value if the 'mapFrom' has changed
//
workingUserCatalog.removeCatalogElement(oldEntry);
// update the new mapping
//
workingUserCatalog.addCatalogElement(newEntry);
tableViewer.setSelection(new StructuredSelection(newEntry));
}
}
}
protected void performRefresh() {
XMLCorePlugin.getDefault().clearCatalogCache();
}
protected void performDelete() {
ISelection selection = tableViewer.getSelection();
if(selection instanceof IStructuredSelection) {
IStructuredSelection structuredSelection = (IStructuredSelection)selection;
Iterator iterator = structuredSelection.iterator();
while(iterator.hasNext()) {
Object selectedObject = iterator.next();
if (selectedObject instanceof ICatalogElement) {
ICatalogElement catalogElement = (ICatalogElement) selectedObject;
workingUserCatalog.removeCatalogElement(catalogElement);
}
}
}
}
protected void updateWidgetEnabledState() {
boolean isEditable = false;
ISelection selection = tableViewer.getSelection();
boolean multipleSelection = false;
if(selection instanceof IStructuredSelection) {
IStructuredSelection structuredSelection = (IStructuredSelection)selection;
if(structuredSelection.size() > 1) {
multipleSelection = true;
}
Object selectedObject = structuredSelection.getFirstElement();
if (selectedObject instanceof ICatalogElement) {
ICatalogElement[] elements = ((Catalog) workingUserCatalog).getCatalogElements();
// dw List entriesList = new ArrayList(elements.length);
for (int i = 0; i < elements.length; i++) {
ICatalogElement element = elements[i];
isEditable = selectedObject.equals(element);
if (isEditable) {
break;
}
}
}
}
// if (isPageEnabled)
{
editButton.setEnabled(isEditable & !multipleSelection);
deleteButton.setEnabled(isEditable);
}
}
/*
* public void setPageEnabled(boolean enabled) { isPageEnabled = enabled;
*
* tableViewer.getControl().setEnabled(isPageEnabled);
*
* newButton.setEnabled(isPageEnabled);
* editButton.setEnabled(isPageEnabled);
* deleteButton.setEnabled(isPageEnabled); }
*/
public void updatePage() {
refresh();
updateWidgetEnabledState();
}
public Viewer getViewer() {
return tableViewer;
}
}