/*******************************************************************************
* Copyright (c) 2000, 2015 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.debug.ui.snippeteditor;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.debug.internal.ui.SWTFactory;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.core.search.SearchEngine;
import org.eclipse.jdt.internal.debug.ui.ExceptionHandler;
import org.eclipse.jdt.internal.debug.ui.Filter;
import org.eclipse.jdt.internal.debug.ui.FilterLabelProvider;
import org.eclipse.jdt.internal.debug.ui.FilterViewerComparator;
import org.eclipse.jdt.internal.debug.ui.IJavaDebugHelpContextIds;
import org.eclipse.jdt.internal.debug.ui.JDIDebugUIPlugin;
import org.eclipse.jdt.ui.IJavaElementSearchConstants;
import org.eclipse.jdt.ui.JavaUI;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.osgi.util.NLS;
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.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.dialogs.ElementListSelectionDialog;
import org.eclipse.ui.dialogs.SelectionDialog;
public class SelectImportsDialog extends TitleAreaDialog {
private String[] fImports;
private Button fAddPackageButton;
private Button fAddTypeButton;
private Button fRemoveImportsButton;
private TableViewer fImportsViewer;
private Table fImportsTable;
private JavaSnippetEditor fEditor;
private ImportsContentProvider fImportContentProvider;
/**
* Content provider for the table. Content consists of instances of Filter.
*/
protected class ImportsContentProvider implements IStructuredContentProvider {
private TableViewer fViewer;
private List<Filter> fImportNames;
public ImportsContentProvider(TableViewer viewer) {
fViewer = viewer;
populateImports();
}
protected void populateImports() {
fImportNames= new ArrayList<>(1);
if (fImports != null) {
for (int i = 0; i < fImports.length; i++) {
String name = fImports[i];
addImport(name);
}
}
}
protected void addImport(String name) {
Filter imprt = new Filter(name, false);
if (!fImportNames.contains(imprt)) {
fImportNames.add(imprt);
fViewer.add(imprt);
}
}
protected void removeImports(Object[] imports) {
for (int i = 0; i < imports.length; i++) {
Filter imprt = (Filter)imports[i];
fImportNames.remove(imprt);
}
fViewer.remove(imports);
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
*/
@Override
public Object[] getElements(Object inputElement) {
return fImportNames.toArray();
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
*/
@Override
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.IContentProvider#dispose()
*/
@Override
public void dispose() {
}
}
public SelectImportsDialog(JavaSnippetEditor editor, String[] imports) {
super(editor.getShell());
fEditor= editor;
fImports= imports;
}
private void createImportButtons(Composite container) {
PlatformUI.getWorkbench().getHelpSystem().setHelp(container, IJavaDebugHelpContextIds.SNIPPET_IMPORTS_DIALOG);
Composite bcomp = SWTFactory.createComposite(container, container.getFont(), 1, 1, GridData.VERTICAL_ALIGN_BEGINNING | GridData.HORIZONTAL_ALIGN_FILL, 0, 0);
GridLayout gl = (GridLayout) bcomp.getLayout();
gl.verticalSpacing = 0;
// Add type button
fAddTypeButton = SWTFactory.createPushButton(bcomp,
SnippetMessages.getString("SelectImportsDialog.Add_&Type_1"), //$NON-NLS-1$
SnippetMessages.getString("SelectImportsDialog.Choose_a_Type_to_Add_as_an_Import_2"), //$NON-NLS-1$
null);
fAddTypeButton.addSelectionListener(new SelectionListener() {
@Override
public void widgetSelected(SelectionEvent se) {
addType();
}
@Override
public void widgetDefaultSelected(SelectionEvent se) {
}
});
// Add package button
fAddPackageButton = SWTFactory.createPushButton(bcomp,
SnippetMessages.getString("SelectImportsDialog.Add_&Package_3"), //$NON-NLS-1$
SnippetMessages.getString("SelectImportsDialog.Choose_a_Package_to_Add_as_an_Import_4"), //$NON-NLS-1$
null);
fAddPackageButton.addSelectionListener(new SelectionListener() {
@Override
public void widgetSelected(SelectionEvent se) {
addPackage();
}
@Override
public void widgetDefaultSelected(SelectionEvent se) {
}
});
// Remove button
fRemoveImportsButton = SWTFactory.createPushButton(bcomp,
SnippetMessages.getString("SelectImportsDialog.&Remove_5"), //$NON-NLS-1$
SnippetMessages.getString("SelectImportsDialog.Remove_All_Selected_Imports_6"), //$NON-NLS-1$
null);
fRemoveImportsButton.addSelectionListener(new SelectionListener() {
@Override
public void widgetSelected(SelectionEvent se) {
removeImports();
}
@Override
public void widgetDefaultSelected(SelectionEvent se) {
}
});
fRemoveImportsButton.setEnabled(false);
}
private void removeImports() {
IStructuredSelection selection = (IStructuredSelection)fImportsViewer.getSelection();
fImportContentProvider.removeImports(selection.toArray());
}
private void addPackage() {
Shell shell= fAddPackageButton.getDisplay().getActiveShell();
ElementListSelectionDialog dialog = null;
try {
IJavaProject project= fEditor.getJavaProject();
List<IJavaElement> projects= new ArrayList<>();
projects.add(project);
IPackageFragmentRoot[] roots= project.getAllPackageFragmentRoots();
for (int i = 0; i < roots.length; i++) {
IPackageFragmentRoot root = roots[i];
projects.add(root.getParent());
}
dialog = JDIDebugUIPlugin.createAllPackagesDialog(shell, projects.toArray(new IJavaProject[projects.size()]), false);
} catch (JavaModelException jme) {
String title= SnippetMessages.getString("SelectImportsDialog.Add_package_as_import_7"); //$NON-NLS-1$
String message= SnippetMessages.getString("SelectImportsDialog.Could_not_open_package_selection_dialog_8"); //$NON-NLS-1$
ExceptionHandler.handle(jme, title, message);
return;
}
if (dialog == null) {
return;
}
dialog.setTitle(SnippetMessages.getString("SelectImportsDialog.Add_package_as_import_7")); //$NON-NLS-1$
dialog.setMessage(SnippetMessages.getString("SelectImportsDialog.&Select_a_package_to_add_as_an_Import_10")); //$NON-NLS-1$
dialog.setMultipleSelection(true);
if (dialog.open() == IDialogConstants.CANCEL_ID) {
return;
}
Object[] packages= dialog.getResult();
if (packages != null) {
for (int i = 0; i < packages.length; i++) {
IJavaElement pkg = (IJavaElement)packages[i];
String filter = pkg.getElementName();
filter += ".*"; //$NON-NLS-1$
fImportContentProvider.addImport(filter);
}
}
}
private void addType() {
Shell shell= fAddTypeButton.getDisplay().getActiveShell();
SelectionDialog dialog= null;
try {
dialog= JavaUI.createTypeDialog(shell, PlatformUI.getWorkbench().getProgressService(),
SearchEngine.createJavaSearchScope(new IJavaElement[]{fEditor.getJavaProject()}, true), IJavaElementSearchConstants.CONSIDER_ALL_TYPES, false);
} catch (JavaModelException jme) {
String title= SnippetMessages.getString("SelectImportsDialog.Add_Type_as_Import_12"); //$NON-NLS-1$
String message= SnippetMessages.getString("SelectImportsDialog.Could_not_open_class_selection_dialog_13"); //$NON-NLS-1$
ExceptionHandler.handle(jme, title, message);
return;
}
dialog.setTitle(SnippetMessages.getString("SelectImportsDialog.Add_Type_as_Import_12")); //$NON-NLS-1$
dialog.setMessage(SnippetMessages.getString("SelectImportsDialog.&Select_a_type_to_add_to_add_as_an_import_15")); //$NON-NLS-1$
if (dialog.open() == IDialogConstants.CANCEL_ID) {
return;
}
Object[] types= dialog.getResult();
if (types != null && types.length > 0) {
IType type = (IType)types[0];
fImportContentProvider.addImport(type.getFullyQualifiedName());
}
}
/* (non-Javadoc)
* @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
*/
@Override
protected Control createDialogArea(Composite parent) {
setTitle(NLS.bind(SnippetMessages.getString("SelectImportsDialog.Manage_the_Java_Snippet_Editor_Imports_for___{0}__1"), new String[]{fEditor.getEditorInput().getName()})); //$NON-NLS-1$
setMessage(NLS.bind(SnippetMessages.getString("SelectImportsDialog.add_remove_imports"), new String[]{fEditor.getEditorInput().getName()})); //$NON-NLS-1$
Composite outer = SWTFactory.createComposite(parent, 2, 1, GridData.FILL_BOTH);
GridLayout gl = (GridLayout) outer.getLayout();
gl.marginLeft = 7;
gl.marginTop = 0;
gl.marginBottom = 0;
SWTFactory.createLabel(outer, SnippetMessages.getString("SelectImportsDialog.imports_heading"), 2); //$NON-NLS-1$
fImportsTable= new Table(outer, SWT.BORDER | SWT.MULTI | SWT.FULL_SELECTION);
GridData gd = new GridData(GridData.FILL_HORIZONTAL);
gd.heightHint = 150;
fImportsTable.setLayoutData(gd);
fImportsViewer = new TableViewer(fImportsTable);
fImportsViewer.setLabelProvider(new FilterLabelProvider());
fImportsViewer.setComparator(new FilterViewerComparator());
fImportContentProvider = new ImportsContentProvider(fImportsViewer);
fImportsViewer.setContentProvider(fImportContentProvider);
// input just needs to be non-null
fImportsViewer.setInput(this);
fImportsViewer.addSelectionChangedListener(new ISelectionChangedListener() {
@Override
public void selectionChanged(SelectionChangedEvent event) {
ISelection selection = event.getSelection();
if (selection.isEmpty()) {
fRemoveImportsButton.setEnabled(false);
} else {
fRemoveImportsButton.setEnabled(true);
}
}
});
createImportButtons(outer);
applyDialogFont(outer);
return parent;
}
/* (non-Javadoc)
* @see org.eclipse.jface.dialogs.Dialog#okPressed()
*/
@Override
protected void okPressed() {
String[] imports= null;
Object[] results= fImportContentProvider.getElements(null);
if (results != null && results.length > 0) {
imports= new String[results.length];
for (int i = 0; i < results.length; i++) {
Filter imprt = (Filter)results[i];
imports[i]= imprt.getName();
}
}
fEditor.setImports(imports);
super.okPressed();
}
/**
* Sets the title for the dialog and establishes the help context.
*
* @see org.eclipse.jface.window.Window#configureShell(Shell);
*/
@Override
protected void configureShell(Shell shell) {
super.configureShell(shell);
shell.setText(SnippetMessages.getString("SelectImportsDialog.Java_Snippet_Imports_18")); //$NON-NLS-1$
}
}