| /******************************************************************************* |
| * Copyright (c) 2001, 2007 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.views.contentoutline; |
| |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.jface.action.IMenuListener; |
| import org.eclipse.jface.action.IMenuManager; |
| import org.eclipse.jface.preference.IPreferenceStore; |
| import org.eclipse.jface.util.LocalSelectionTransfer; |
| import org.eclipse.jface.util.SafeRunnable; |
| import org.eclipse.jface.util.TransferDragSourceListener; |
| import org.eclipse.jface.util.TransferDropTargetListener; |
| import org.eclipse.jface.viewers.IContentProvider; |
| import org.eclipse.jface.viewers.ILabelProvider; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.jface.viewers.TreeViewer; |
| import org.eclipse.swt.dnd.DND; |
| import org.eclipse.swt.dnd.DragSourceEvent; |
| import org.eclipse.swt.dnd.DropTargetEvent; |
| import org.eclipse.swt.dnd.Transfer; |
| import org.eclipse.swt.graphics.Point; |
| import org.eclipse.swt.graphics.Rectangle; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.TableItem; |
| import org.eclipse.swt.widgets.TreeItem; |
| import org.eclipse.wst.sse.core.internal.provisional.IStructuredModel; |
| import org.eclipse.wst.sse.ui.internal.IReleasable; |
| import org.eclipse.wst.sse.ui.views.contentoutline.ContentOutlineConfiguration; |
| import org.eclipse.wst.xml.ui.internal.XMLUIPlugin; |
| import org.eclipse.wst.xml.ui.internal.contentoutline.JFaceNodeContentProvider; |
| import org.eclipse.wst.xml.ui.internal.contentoutline.JFaceNodeLabelProvider; |
| import org.eclipse.wst.xml.ui.internal.contentoutline.XMLNodeActionManager; |
| import org.eclipse.wst.xml.ui.internal.dnd.DragNodeCommand; |
| import org.w3c.dom.Node; |
| |
| /** |
| * Basic Outline Configuration for generic XML support. Expects that the viewer's |
| * input will be the DOM Model, and provides basic label and content providers. |
| * |
| * @see org.eclipse.wst.sse.ui.views.contentoutline.ContentOutlineConfiguration |
| * @since 3.1 |
| */ |
| public abstract class AbstractXMLContentOutlineConfiguration extends ContentOutlineConfiguration { |
| private class ActionManagerMenuListener implements IMenuListener, IReleasable { |
| private XMLNodeActionManager fActionManager; |
| private TreeViewer fTreeViewer; |
| |
| public ActionManagerMenuListener(TreeViewer viewer) { |
| fTreeViewer = viewer; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.action.IMenuListener#menuAboutToShow(org.eclipse.jface.action.IMenuManager) |
| */ |
| public void menuAboutToShow(IMenuManager manager) { |
| if (fActionManager == null) { |
| fActionManager = createNodeActionManager(fTreeViewer); |
| } |
| if (fActionManager != null) { |
| fActionManager.fillContextMenu(manager, fTreeViewer.getSelection()); |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.wst.sse.ui.internal.IReleasable#release() |
| */ |
| public void release() { |
| fTreeViewer = null; |
| if (fActionManager != null) { |
| fActionManager.setModel(null); |
| } |
| } |
| } |
| |
| private static class StatusLineLabelProvider extends JFaceNodeLabelProvider { |
| TreeViewer treeViewer = null; |
| |
| public StatusLineLabelProvider(TreeViewer viewer) { |
| treeViewer = viewer; |
| } |
| |
| public String getText(Object element) { |
| if (element == null) |
| return null; |
| |
| if (!(element instanceof Node)) { |
| return super.getText(element); |
| } |
| |
| StringBuffer s = new StringBuffer(); |
| Node node = (Node) element; |
| while (node != null) { |
| if (node.getNodeType() != Node.DOCUMENT_NODE) { |
| s.insert(0, super.getText(node)); |
| } |
| node = node.getParentNode(); |
| if (node != null && node.getNodeType() != Node.DOCUMENT_NODE) { |
| s.insert(0, IPath.SEPARATOR); |
| } |
| } |
| return s.toString(); |
| } |
| } |
| |
| private IContentProvider fContentProvider = null; |
| |
| private ActionManagerMenuListener fContextMenuFiller = null; |
| |
| private ILabelProvider fLabelProvider = null; |
| |
| boolean fShowAttributes = false; |
| |
| private ILabelProvider fSimpleLabelProvider; |
| private TransferDragSourceListener[] fTransferDragSourceListeners; |
| |
| private TransferDropTargetListener[] fTransferDropTargetListeners; |
| |
| /** |
| * Create new instance of XMLContentOutlineConfiguration |
| */ |
| public AbstractXMLContentOutlineConfiguration() { |
| // Must have empty constructor to createExecutableExtension |
| super(); |
| } |
| |
| /** |
| * Returns the NodeActionManager to use for the given treeViewer. |
| * <p> |
| * Not API. May be removed in the future. |
| * </p> |
| * |
| * @param treeViewer |
| * the TreeViewer associated with this configuration |
| * @return a node action manager for use with this tree viewer |
| */ |
| protected XMLNodeActionManager createNodeActionManager(TreeViewer treeViewer) { |
| return new XMLNodeActionManager((IStructuredModel) treeViewer.getInput(), treeViewer); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.wst.sse.ui.views.contentoutline.ContentOutlineConfiguration#getContentProvider(org.eclipse.jface.viewers.TreeViewer) |
| */ |
| public IContentProvider getContentProvider(TreeViewer viewer) { |
| if (fContentProvider == null) { |
| fContentProvider = new JFaceNodeContentProvider(); |
| } |
| return fContentProvider; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.wst.sse.ui.views.contentoutline.ContentOutlineConfiguration#getLabelProvider(org.eclipse.jface.viewers.TreeViewer) |
| */ |
| public ILabelProvider getLabelProvider(TreeViewer viewer) { |
| if (fLabelProvider == null) { |
| fLabelProvider = new JFaceNodeLabelProvider(); |
| } |
| return fLabelProvider; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.wst.sse.ui.views.contentoutline.ContentOutlineConfiguration#getMenuListener(org.eclipse.jface.viewers.TreeViewer) |
| */ |
| public IMenuListener getMenuListener(TreeViewer viewer) { |
| if (fContextMenuFiller == null) { |
| fContextMenuFiller = new ActionManagerMenuListener(viewer); |
| } |
| return fContextMenuFiller; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.wst.sse.ui.views.contentoutline.ContentOutlineConfiguration#getPreferenceStore() |
| */ |
| protected IPreferenceStore getPreferenceStore() { |
| return XMLUIPlugin.getDefault().getPreferenceStore(); |
| } |
| |
| public ILabelProvider getStatusLineLabelProvider(TreeViewer treeViewer) { |
| if (fSimpleLabelProvider == null) { |
| fSimpleLabelProvider = new StatusLineLabelProvider(treeViewer); |
| } |
| return fSimpleLabelProvider; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.wst.sse.ui.views.contentoutline.ContentOutlineConfiguration#getTransferDragSourceListeners(org.eclipse.jface.viewers.TreeViewer) |
| */ |
| public TransferDragSourceListener[] getTransferDragSourceListeners(final TreeViewer treeViewer) { |
| if (fTransferDragSourceListeners == null) { |
| fTransferDragSourceListeners = new TransferDragSourceListener[]{new TransferDragSourceListener() { |
| |
| public void dragFinished(DragSourceEvent event) { |
| LocalSelectionTransfer.getTransfer().setSelection(null); |
| } |
| |
| public void dragSetData(DragSourceEvent event) { |
| } |
| |
| public void dragStart(DragSourceEvent event) { |
| LocalSelectionTransfer.getTransfer().setSelection(treeViewer.getSelection()); |
| } |
| |
| public Transfer getTransfer() { |
| return LocalSelectionTransfer.getTransfer(); |
| } |
| }}; |
| } |
| |
| return fTransferDragSourceListeners; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.wst.sse.ui.views.contentoutline.ContentOutlineConfiguration#getTransferDropTargetListeners(org.eclipse.jface.viewers.TreeViewer) |
| */ |
| public TransferDropTargetListener[] getTransferDropTargetListeners(final TreeViewer treeViewer) { |
| if (fTransferDropTargetListeners == null) { |
| fTransferDropTargetListeners = new TransferDropTargetListener[]{new TransferDropTargetListener() { |
| public void dragEnter(DropTargetEvent event) { |
| } |
| |
| public void dragLeave(DropTargetEvent event) { |
| } |
| |
| public void dragOperationChanged(DropTargetEvent event) { |
| } |
| |
| public void dragOver(DropTargetEvent event) { |
| event.feedback = DND.FEEDBACK_SELECT; |
| float feedbackFloat = getHeightInItem(event); |
| if (feedbackFloat > 0.75) { |
| event.feedback = DND.FEEDBACK_INSERT_AFTER; |
| } |
| else if (feedbackFloat < 0.25) { |
| event.feedback = DND.FEEDBACK_INSERT_BEFORE; |
| } |
| event.feedback |= DND.FEEDBACK_EXPAND | DND.FEEDBACK_SCROLL; |
| } |
| |
| public void drop(DropTargetEvent event) { |
| if (event.operations != DND.DROP_NONE && LocalSelectionTransfer.getTransfer().getSelection() != null && !LocalSelectionTransfer.getTransfer().getSelection().isEmpty()) { |
| IStructuredSelection selection = (IStructuredSelection) LocalSelectionTransfer.getTransfer().getSelection(); |
| if (selection != null && !selection.isEmpty() && event.item != null && event.item.getData() != null) { |
| /* |
| * the command uses these numbers instead of the |
| * feedback constants (even though it converts in |
| * the other direction as well) |
| */ |
| float feedbackFloat = getHeightInItem(event); |
| |
| final DragNodeCommand command = new DragNodeCommand(event.item.getData(), feedbackFloat, event.operations, event.detail, selection.toList(), treeViewer); |
| if (command != null && command.canExecute()) { |
| SafeRunnable.run(new SafeRunnable() { |
| public void run() throws Exception { |
| command.execute(); |
| } |
| }); |
| } |
| } |
| } |
| } |
| |
| public void dropAccept(DropTargetEvent event) { |
| } |
| |
| private float getHeightInItem(DropTargetEvent event) { |
| if (event.item == null) |
| return .5f; |
| if (event.item instanceof TreeItem) { |
| TreeItem treeItem = (TreeItem) event.item; |
| Control control = treeItem.getParent(); |
| Point point = control.toControl(new Point(event.x, event.y)); |
| Rectangle bounds = treeItem.getBounds(); |
| return (float) (point.y - bounds.y) / (float) bounds.height; |
| } |
| else if (event.item instanceof TableItem) { |
| TableItem tableItem = (TableItem) event.item; |
| Control control = tableItem.getParent(); |
| Point point = control.toControl(new Point(event.x, event.y)); |
| Rectangle bounds = tableItem.getBounds(0); |
| return (float) (point.y - bounds.y) / (float) bounds.height; |
| } |
| else { |
| return 0.0F; |
| } |
| } |
| |
| public Transfer getTransfer() { |
| return LocalSelectionTransfer.getTransfer(); |
| } |
| |
| public boolean isEnabled(DropTargetEvent event) { |
| return getTransfer().isSupportedType(event.currentDataType); |
| } |
| }}; |
| } |
| return fTransferDropTargetListeners; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.wst.sse.ui.views.contentoutline.ContentOutlineConfiguration#unconfigure(org.eclipse.jface.viewers.TreeViewer) |
| */ |
| public void unconfigure(TreeViewer viewer) { |
| super.unconfigure(viewer); |
| fTransferDragSourceListeners = null; |
| fTransferDropTargetListeners = null; |
| if (fContextMenuFiller != null) { |
| fContextMenuFiller.release(); |
| fContextMenuFiller = null; |
| } |
| } |
| } |