/*******************************************************************************
* Copyright (c) 2000, 2013 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 org.eclipse.jdt.internal.ui.wizards.buildpaths;
import java.io.File;
import java.util.List;
import org.eclipse.equinox.bidi.StructuredTextTypeHandlerFactory;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.DirectoryDialog;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.dialogs.StatusDialog;
import org.eclipse.jface.util.BidiUtils;
import org.eclipse.ui.PlatformUI;
import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
import org.eclipse.jdt.internal.ui.IUIConstants;
import org.eclipse.jdt.internal.ui.JavaPlugin;
import org.eclipse.jdt.internal.ui.dialogs.StatusInfo;
import org.eclipse.jdt.internal.ui.dialogs.StatusUtil;
import org.eclipse.jdt.internal.ui.wizards.NewWizardMessages;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.DialogField;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.IDialogFieldListener;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.IStringButtonAdapter;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.LayoutUtil;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.SelectionButtonDialogField;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.StringButtonDialogField;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.StringDialogField;
public class VariableCreationDialog extends StatusDialog {
private IDialogSettings fDialogSettings;
private StringDialogField fNameField;
private StatusInfo fNameStatus;
private StringButtonDialogField fPathField;
private StatusInfo fPathStatus;
private SelectionButtonDialogField fDirButton;
private CPVariableElement fElement;
private List<CPVariableElement> fExistingNames;
public VariableCreationDialog(Shell parent, CPVariableElement element, List<CPVariableElement> existingNames) {
super(parent);
if (element == null) {
setTitle(NewWizardMessages.VariableCreationDialog_titlenew);
} else {
setTitle(NewWizardMessages.VariableCreationDialog_titleedit);
}
fDialogSettings= JavaPlugin.getDefault().getDialogSettings();
fElement= element;
fNameStatus= new StatusInfo();
fPathStatus= new StatusInfo();
NewVariableAdapter adapter= new NewVariableAdapter();
fNameField= new StringDialogField();
fNameField.setDialogFieldListener(adapter);
fNameField.setLabelText(NewWizardMessages.VariableCreationDialog_name_label);
fPathField= new StringButtonDialogField(adapter);
fPathField.setDialogFieldListener(adapter);
fPathField.setLabelText(NewWizardMessages.VariableCreationDialog_path_label);
fPathField.setButtonLabel(NewWizardMessages.VariableCreationDialog_path_file_button);
fDirButton= new SelectionButtonDialogField(SWT.PUSH);
fDirButton.setDialogFieldListener(adapter);
fDirButton.setLabelText(NewWizardMessages.VariableCreationDialog_path_dir_button);
fExistingNames= existingNames;
if (element != null) {
fNameField.setText(element.getName());
fPathField.setText(element.getPath().toString());
fExistingNames.remove(element.getName());
} else {
fNameField.setText(""); //$NON-NLS-1$
fPathField.setText(""); //$NON-NLS-1$
}
}
/*
* @see Windows#configureShell
*/
@Override
protected void configureShell(Shell newShell) {
super.configureShell(newShell);
PlatformUI.getWorkbench().getHelpSystem().setHelp(newShell, IJavaHelpContextIds.VARIABLE_CREATION_DIALOG);
}
public CPVariableElement getClasspathElement() {
return new CPVariableElement(fNameField.getText(), new Path(fPathField.getText()));
}
/*
* @see Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
*/
@Override
protected Control createDialogArea(Composite parent) {
Composite composite= (Composite) super.createDialogArea(parent);
Composite inner= new Composite(composite, SWT.NONE);
inner.setFont(composite.getFont());
GridLayout layout= new GridLayout();
layout.marginWidth= 0;
layout.marginHeight= 0;
layout.numColumns= 4;
inner.setLayout(layout);
int fieldWidthHint= convertWidthInCharsToPixels(50);
fNameField.doFillIntoGrid(inner, 2);
LayoutUtil.setWidthHint(fNameField.getTextControl(null), fieldWidthHint);
LayoutUtil.setHorizontalGrabbing(fNameField.getTextControl(null));
DialogField.createEmptySpace(inner, 2);
fPathField.doFillIntoGrid(inner, 3);
LayoutUtil.setWidthHint(fPathField.getTextControl(null), fieldWidthHint);
BidiUtils.applyBidiProcessing(fPathField.getTextControl(null), StructuredTextTypeHandlerFactory.FILE);
fDirButton.doFillIntoGrid(inner, 1);
DialogField focusField= (fElement == null) ? fNameField : fPathField;
focusField.postSetFocusOnDialogField(parent.getDisplay());
applyDialogFont(composite);
return composite;
}
// -------- NewVariableAdapter --------
private class NewVariableAdapter implements IDialogFieldListener, IStringButtonAdapter {
// -------- IDialogFieldListener
public void dialogFieldChanged(DialogField field) {
doFieldUpdated(field);
}
// -------- IStringButtonAdapter
public void changeControlPressed(DialogField field) {
doChangeControlPressed(field);
}
}
private void doChangeControlPressed(DialogField field) {
if (field == fPathField) {
IPath path= chooseExtJarFile();
if (path != null) {
fPathField.setText(path.toString());
}
}
}
private void doFieldUpdated(DialogField field) {
if (field == fNameField) {
fNameStatus= nameUpdated();
} else if (field == fPathField) {
fPathStatus= pathUpdated();
} else if (field == fDirButton) {
IPath path= chooseExtDirectory();
if (path != null) {
fPathField.setText(path.toString());
}
}
updateStatus(StatusUtil.getMoreSevere(fPathStatus, fNameStatus));
}
private StatusInfo nameUpdated() {
StatusInfo status= new StatusInfo();
String name= fNameField.getText();
if (name.length() == 0) {
status.setError(NewWizardMessages.VariableCreationDialog_error_entername);
return status;
}
if (name.trim().length() != name.length()) {
status.setError(NewWizardMessages.VariableCreationDialog_error_whitespace);
} else if (!Path.ROOT.isValidSegment(name)) {
status.setError(NewWizardMessages.VariableCreationDialog_error_invalidname);
} else if (nameConflict(name)) {
status.setError(NewWizardMessages.VariableCreationDialog_error_nameexists);
}
return status;
}
private boolean nameConflict(String name) {
if (fElement != null && fElement.getName().equals(name)) {
return false;
}
for (int i= 0; i < fExistingNames.size(); i++) {
CPVariableElement elem= fExistingNames.get(i);
if (name.equals(elem.getName())){
return true;
}
}
return false;
}
private StatusInfo pathUpdated() {
StatusInfo status= new StatusInfo();
String path= fPathField.getText();
if (path.length() > 0) { // empty path is ok
if (!Path.ROOT.isValidPath(path)) {
status.setError(NewWizardMessages.VariableCreationDialog_error_invalidpath);
} else if (!new File(path).exists()) {
status.setWarning(NewWizardMessages.VariableCreationDialog_warning_pathnotexists);
}
}
return status;
}
private String getInitPath() {
String initPath= fPathField.getText();
if (initPath.length() == 0) {
initPath= fDialogSettings.get(IUIConstants.DIALOGSTORE_LASTEXTJAR);
if (initPath == null) {
initPath= ""; //$NON-NLS-1$
}
} else {
IPath entryPath= new Path(initPath);
if (ArchiveFileFilter.isArchivePath(entryPath, true)) {
entryPath.removeLastSegments(1);
}
initPath= entryPath.toOSString();
}
return initPath;
}
/*
* Open a dialog to choose a jar from the file system
*/
private IPath chooseExtJarFile() {
String initPath= getInitPath();
FileDialog dialog= new FileDialog(getShell());
dialog.setText(NewWizardMessages.VariableCreationDialog_extjardialog_text);
dialog.setFilterExtensions(ArchiveFileFilter.ALL_ARCHIVES_FILTER_EXTENSIONS);
dialog.setFilterPath(initPath);
String res= dialog.open();
if (res != null) {
fDialogSettings.put(IUIConstants.DIALOGSTORE_LASTEXTJAR, dialog.getFilterPath());
return Path.fromOSString(res).makeAbsolute();
}
return null;
}
private IPath chooseExtDirectory() {
String initPath= getInitPath();
DirectoryDialog dialog= new DirectoryDialog(getShell());
dialog.setText(NewWizardMessages.VariableCreationDialog_extdirdialog_text);
dialog.setMessage(NewWizardMessages.VariableCreationDialog_extdirdialog_message);
dialog.setFilterPath(initPath);
String res= dialog.open();
if (res != null) {
fDialogSettings.put(IUIConstants.DIALOGSTORE_LASTEXTJAR, dialog.getFilterPath());
return Path.fromOSString(res);
}
return null;
}
}