| /******************************************************************************* |
| * Copyright (c) 2005, 2012 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.bpel.ui.util.filedialog; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.core.resources.IContainer; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.ResourcesPlugin; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.jface.viewers.DoubleClickEvent; |
| import org.eclipse.jface.viewers.IDoubleClickListener; |
| 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.TreeViewer; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Event; |
| import org.eclipse.swt.widgets.Label; |
| import org.eclipse.swt.widgets.Listener; |
| import org.eclipse.ui.model.WorkbenchContentProvider; |
| import org.eclipse.ui.model.WorkbenchLabelProvider; |
| import org.eclipse.ui.part.DrillDownComposite; |
| |
| public class FileSelectionGroup extends Composite { |
| |
| // The listener to notify of events |
| private Listener listener; |
| |
| private String message; |
| |
| // Last selection made by user |
| private IResource selectedResource; |
| |
| // handle on parts |
| private TreeViewer treeViewer; |
| |
| // Filters |
| private ViewerFileFilter viewerFileFilter; |
| // private ViewerFileFilterMatcher viewerFileFilterMatcher |
| private String filterPatterns; |
| // sizing constants |
| private static final int SIZING_SELECTION_PANE_HEIGHT = 175; |
| private static final int SIZING_SELECTION_PANE_WIDTH = 200; |
| /** |
| * Creates a new instance of the widget. |
| */ |
| public FileSelectionGroup( |
| Composite parent, |
| Listener listener, |
| String message) { |
| this(parent, listener, message, null); |
| } |
| public FileSelectionGroup( |
| Composite parent, |
| Listener listener, |
| String message, |
| String filterPatterns) { |
| super(parent, SWT.NONE); |
| |
| this.filterPatterns = filterPatterns; |
| this.listener = listener; |
| this.message = message; |
| this.setFont(parent.getFont()); |
| |
| createViewerFileFilter(); |
| createContents(); |
| } |
| /** |
| * Creates ViewerFileFilter using array of objects. |
| */ |
| public void createViewerFileFilter() { |
| if (filterPatterns != null) { |
| viewerFileFilter = new ViewerFileFilter(filterPatterns); |
| } |
| } |
| /** |
| * Creates the contents of the composite. |
| */ |
| public void createContents() { |
| GridLayout layout = new GridLayout(); |
| layout.marginWidth = 0; |
| setLayout(layout); |
| setLayoutData(new GridData(GridData.FILL_BOTH)); |
| |
| Label label = new Label(this, SWT.WRAP); |
| label.setText(message != null ? message : ""); //$NON-NLS-1$ |
| label.setFont(this.getFont()); |
| |
| createTreeViewer(); |
| } |
| /** |
| * Returns a new drill down viewer for this dialog. |
| */ |
| protected void createTreeViewer() { |
| |
| // Create drill down. |
| DrillDownComposite drillDown = new DrillDownComposite(this, SWT.BORDER); |
| GridData spec = |
| new GridData( |
| GridData.VERTICAL_ALIGN_FILL |
| | GridData.HORIZONTAL_ALIGN_FILL |
| | GridData.GRAB_HORIZONTAL |
| | GridData.GRAB_VERTICAL); |
| spec.widthHint = SIZING_SELECTION_PANE_WIDTH; |
| spec.heightHint = SIZING_SELECTION_PANE_HEIGHT; |
| drillDown.setLayoutData(spec); |
| |
| // Create tree viewer inside drill down. |
| treeViewer = new TreeViewer(drillDown, SWT.NONE); |
| drillDown.setChildTree(treeViewer); |
| treeViewer.setContentProvider(new WorkbenchContentProvider()); |
| treeViewer.setLabelProvider(new WorkbenchLabelProvider()); |
| treeViewer.addSelectionChangedListener(new ISelectionChangedListener() { |
| public void selectionChanged(SelectionChangedEvent event) { |
| IStructuredSelection selection = (IStructuredSelection) event.getSelection(); |
| resourceSelectionChanged((IResource) selection.getFirstElement()); |
| // allow null |
| } |
| }); |
| treeViewer.addDoubleClickListener(new IDoubleClickListener() { |
| public void doubleClick(DoubleClickEvent event) { |
| ISelection selection = event.getSelection(); |
| if (selection instanceof IStructuredSelection) { |
| Object item = ((IStructuredSelection) selection).getFirstElement(); |
| if (treeViewer.getExpandedState(item)) |
| treeViewer.collapseToLevel(item, 1); |
| else |
| treeViewer.expandToLevel(item, 1); |
| } |
| } |
| }); |
| |
| if (viewerFileFilter != null) |
| treeViewer.addFilter(viewerFileFilter); |
| // This has to be done after the viewer has been laid out |
| treeViewer.setInput(ResourcesPlugin.getWorkspace()); |
| } |
| /** |
| * Returns the "full path" (i.e. first segment is project name) of the currently selected file. |
| */ |
| public IPath getResourceFullPath() { |
| if (selectedResource == null) return null; |
| return selectedResource.getFullPath(); |
| } |
| |
| |
| public IResource getSelectedResource () { |
| return selectedResource; |
| } |
| |
| |
| /** |
| * Returns the tree viewer. |
| */ |
| public TreeViewer getTreeViewer() { |
| return treeViewer; |
| } |
| /** |
| * The file selection has changed in the |
| * tree view. Update the file name field |
| * value and notify all listeners. |
| */ |
| public void resourceSelectionChanged(IResource resource) { |
| selectedResource = resource; |
| |
| // fire an event so the parent can update its controls |
| if (listener != null) { |
| Event changeEvent = new Event(); |
| changeEvent.type = SWT.Selection; |
| changeEvent.widget = this; |
| listener.handleEvent(changeEvent); |
| } |
| } |
| /** |
| * Gives focus to one of the widgets in the group, as determined by the group. |
| */ |
| public void setInitialFocus() { |
| treeViewer.getTree().setFocus(); |
| } |
| /** |
| * Sets the selected existing file. |
| */ |
| public void setSelectedResource(IResource resource) { |
| // https://issues.jboss.org/browse/JBIDE-8738 |
| if (resource==null) |
| return; |
| selectedResource = resource; |
| |
| //expand to and select the specified file |
| List itemsToExpand = new ArrayList(); |
| IContainer parent = resource.getParent(); |
| while (parent != null) { |
| itemsToExpand.add(0, parent); |
| parent = parent.getParent(); |
| } |
| treeViewer.setExpandedElements(itemsToExpand.toArray()); |
| treeViewer.setSelection(new StructuredSelection(resource), true); |
| } |
| } |