/*******************************************************************************
* Copyright (c) 2001, 2010 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.dialogs;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.graphics.Image;
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.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.PlatformUI;
import org.eclipse.wst.xml.core.internal.document.JSPTag;
import org.eclipse.wst.xml.core.internal.provisional.NameValidator;
import org.eclipse.wst.xml.ui.internal.XMLUIMessages;
import org.eclipse.wst.xml.ui.internal.editor.XMLEditorPluginImageHelper;
import org.eclipse.wst.xml.ui.internal.editor.XMLEditorPluginImages;
import org.eclipse.wst.xml.ui.internal.util.XMLCommonUIContextIds;
import org.w3c.dom.Attr;
import org.w3c.dom.Element;
public class EditAttributeDialog extends Dialog implements ModifyListener {
protected Attr attribute;
protected String attributeName;
protected Text attributeNameField;
protected String attributeValue;
protected Text attributeValueField;
protected Label errorMessageIcon;
protected Label errorMessageLabel;
protected Button okButton;
protected Element ownerElement;
public EditAttributeDialog(Shell parentShell, Element ownerElement, Attr attribute) {
super(parentShell);
setShellStyle(getShellStyle() | SWT.RESIZE);
this.ownerElement = ownerElement;
this.attribute = attribute;
}
protected void buttonPressed(int buttonId) {
if (buttonId == IDialogConstants.OK_ID) {
attributeName = getModelValue(attributeNameField.getText());
attributeValue = attributeValueField.getText();
}
super.buttonPressed(buttonId);
}
protected void createButtonsForButtonBar(Composite parent) {
okButton = createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true);
createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
}
protected Control createContents(Composite parent) {
Control control = super.createContents(parent);
attributeNameField.forceFocus();
attributeNameField.selectAll();
updateErrorMessage();
return control;
}
protected Control createDialogArea(Composite parent) {
Composite dialogArea = (Composite) super.createDialogArea(parent);
PlatformUI.getWorkbench().getHelpSystem().setHelp(dialogArea, XMLCommonUIContextIds.XCUI_ATTRIBUTE_DIALOG);
Composite composite = new Composite(dialogArea, SWT.NONE);
GridLayout layout = new GridLayout();
layout.numColumns = 2;
layout.marginWidth = 0;
composite.setLayout(layout);
//
// Style convenience constants
composite.setLayoutData(new GridData(GridData.FILL_BOTH));
Label attributeNameLabel = new Label(composite, SWT.NONE);
attributeNameLabel.setText(XMLUIMessages._UI_LABEL_NAME_COLON);
attributeNameField = new Text(composite, SWT.SINGLE | SWT.BORDER);
GridData gd = new GridData(GridData.FILL_HORIZONTAL);
gd.widthHint = 300;
attributeNameField.setLayoutData(gd);
attributeNameField.setText(getDisplayValue(attribute != null ? attribute.getName() : "")); //$NON-NLS-1$
attributeNameField.addModifyListener(this);
Label attributeValueLabel = new Label(composite, SWT.NONE);
attributeValueLabel.setText(XMLUIMessages._UI_LABEL_VALUE_COLON);
String value = attribute != null ? attribute.getValue() : ""; //$NON-NLS-1$
int style = SWT.SINGLE | SWT.BORDER;
if (value.indexOf("\n") != -1) { //$NON-NLS-1$
style = SWT.MULTI | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL;
}
attributeValueField = new Text(composite, style);
gd = new GridData(GridData.FILL_HORIZONTAL);
gd.widthHint = 300;
attributeValueField.setLayoutData(gd);
attributeValueField.setText(getDisplayValue(attribute != null ? attribute.getValue() : "")); //$NON-NLS-1$
// Error message
Composite message = new Composite(composite, SWT.NONE);
layout = new GridLayout();
layout.numColumns = 2;
layout.marginWidth = 0;
message.setLayout(layout);
gd = new GridData(GridData.FILL_HORIZONTAL);
gd.horizontalSpan = 2;
message.setLayoutData(gd);
errorMessageIcon = new Label(message, SWT.NONE);
gd = new GridData();
gd.horizontalSpan = 1;
gd.verticalAlignment = SWT.TOP;
errorMessageIcon.setLayoutData(gd);
errorMessageIcon.setImage(null);
errorMessageLabel = new Label(message, SWT.WRAP);
errorMessageLabel.setText(XMLUIMessages.error_message_goes_here);
gd = new GridData(GridData.FILL_HORIZONTAL);
gd.widthHint = 200;
gd.heightHint = Math.max(30, errorMessageLabel.computeSize(0, 0, false).y * 2);
gd.horizontalSpan = 1;
gd.verticalAlignment = SWT.TOP;
errorMessageLabel.setLayoutData(gd);
return dialogArea;
}
public String getAttributeName() {
return attributeName;
}
public String getAttributeValue() {
return attributeValue;
}
protected String getDisplayValue(String string) {
return string != null ? string : ""; //$NON-NLS-1$
}
protected String getModelValue(String string) {
String result = null;
if ((string != null) && (string.trim().length() > 0)) {
result = string;
}
return result;
}
public void modifyText(ModifyEvent e) {
updateErrorMessage();
}
protected void updateErrorMessage() {
String errorMessage = null;
Image image = null;
String name = attributeNameField.getText().trim();
if (name.length() > 0) {
Attr matchingAttribute = ownerElement.getAttributeNode(name);
if ((matchingAttribute != null) && (matchingAttribute != attribute)) {
errorMessage = XMLUIMessages._ERROR_XML_ATTRIBUTE_ALREADY_EXISTS;
image = XMLEditorPluginImageHelper.getInstance().getImage(XMLEditorPluginImages.IMG_OBJ_ERROR_OBJ);
}
else {
if (!isValidName(name)){
errorMessage = NLS.bind(XMLUIMessages._ERROR_XML_ATTRIBUTE_IS_INVALID, name);
image = XMLEditorPluginImageHelper.getInstance().getImage(XMLEditorPluginImages.IMG_OBJ_ERROR_OBJ);
}
}
}
else {
errorMessage = ""; //$NON-NLS-1$
}
errorMessageLabel.setText(errorMessage != null ? errorMessage : ""); //$NON-NLS-1$
errorMessageIcon.setImage(image);
errorMessageLabel.getParent().layout();
okButton.setEnabled(errorMessage == null);
}
private boolean isValidName(String name) {
if (NameValidator.isValid(name))
return true;
// special for JSP tag in tag name
if (name.startsWith(JSPTag.TAG_OPEN))
return true;
return false;
}
}