| /******************************************************************************* |
| * 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.dtd.ui.views.contentoutline; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.eclipse.jface.action.IContributionItem; |
| import org.eclipse.jface.action.IMenuListener; |
| 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.common.ui.internal.dnd.DragAndDropCommand; |
| import org.eclipse.wst.dtd.core.internal.document.DTDModelImpl; |
| import org.eclipse.wst.dtd.ui.internal.DTDUIPlugin; |
| import org.eclipse.wst.dtd.ui.internal.dnd.DTDDragAndDropManager; |
| import org.eclipse.wst.sse.ui.internal.contentoutline.PropertyChangeUpdateActionContributionItem; |
| import org.eclipse.wst.sse.ui.internal.util.Assert; |
| import org.eclipse.wst.sse.ui.views.contentoutline.ContentOutlineConfiguration; |
| |
| /** |
| * Configuration for outline view page which shows DTD content. |
| * |
| * @see org.eclipse.wst.sse.ui.views.contentoutline.ContentOutlineConfiguration |
| * @since 1.0 |
| */ |
| public class DTDContentOutlineConfiguration extends ContentOutlineConfiguration { |
| private IContentProvider fContentProvider = null; |
| private ILabelProvider fLabelProvider = null; |
| |
| private DTDContextMenuHelper fMenuHelper; |
| private TransferDragSourceListener[] fTransferDragSourceListeners; |
| private TransferDropTargetListener[] fTransferDropTargetListeners; |
| private Map fViewerContributions; |
| private final String OUTLINE_ORDER_PREF = "outline-order"; //$NON-NLS-1$ |
| private final String OUTLINE_SORT_PREF = "outline-sort"; //$NON-NLS-1$ |
| |
| /** |
| * Default constructor for DTDContentOutlineConfiguration. |
| */ |
| public DTDContentOutlineConfiguration() { |
| // Must have empty constructor to createExecutableExtension |
| super(); |
| fViewerContributions = new HashMap(2); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.wst.sse.ui.views.contentoutline.ContentOutlineConfiguration#createToolbarContributions(org.eclipse.jface.viewers.TreeViewer) |
| */ |
| public IContributionItem[] createToolbarContributions(TreeViewer viewer) { |
| Assert.isTrue(getContentProvider(viewer) instanceof DTDTreeContentProvider, "invalid content provider on viewer"); //$NON-NLS-1$ |
| IContributionItem[] items = super.createToolbarContributions(viewer); |
| |
| SortAction sortAction = new SortAction(viewer, DTDUIPlugin.getDefault().getPreferenceStore(), OUTLINE_SORT_PREF); |
| OrderAction orderAction = new OrderAction(viewer, (DTDTreeContentProvider) getContentProvider(viewer), DTDUIPlugin.getDefault().getPreferenceStore(), OUTLINE_ORDER_PREF); |
| IContributionItem sortItem = new PropertyChangeUpdateActionContributionItem(sortAction); |
| IContributionItem orderItem = new PropertyChangeUpdateActionContributionItem(orderAction); |
| |
| if (items == null) { |
| items = new IContributionItem[2]; |
| items[0] = sortItem; |
| items[1] = orderItem; |
| } |
| else { |
| IContributionItem[] combinedItems = new IContributionItem[items.length + 2]; |
| combinedItems[0] = sortItem; |
| combinedItems[1] = orderItem; |
| System.arraycopy(items, 0, combinedItems, 2, items.length); |
| items = combinedItems; |
| } |
| return items; |
| } |
| |
| /* |
| * (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 DTDTreeContentProvider(); |
| } |
| // return super.getContentProvider(viewer); |
| 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 DTDLabelProvider(); |
| } |
| // return super.getLabelProvider(viewer); |
| return fLabelProvider; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.wst.sse.ui.views.contentoutline.ContentOutlineConfiguration#getMenuListener(org.eclipse.jface.viewers.TreeViewer) |
| */ |
| public IMenuListener getMenuListener(TreeViewer viewer) { |
| IMenuListener listener = null; |
| if (fMenuHelper == null && viewer.getInput() instanceof DTDModelImpl) { |
| fMenuHelper = new DTDContextMenuHelper((DTDModelImpl) viewer.getInput()); |
| fMenuHelper.createMenuListenersFor(viewer); |
| } |
| if (fMenuHelper != null) { |
| listener = fMenuHelper.getMenuListener(); |
| } |
| return listener; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.wst.sse.ui.views.contentoutline.ContentOutlineConfiguration#getPreferenceStore() |
| */ |
| protected IPreferenceStore getPreferenceStore() { |
| return DTDUIPlugin.getDefault().getPreferenceStore(); |
| } |
| |
| /* |
| * (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() instanceof IStructuredSelection) { |
| 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 DragAndDropCommand command = new DTDDragAndDropManager().createCommand(event.item.getData(), feedbackFloat, event.operations, event.detail, selection.toList()); |
| 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); |
| fViewerContributions.remove(viewer); |
| if (fMenuHelper != null) { |
| fMenuHelper.removeMenuListenersFor(viewer); |
| fMenuHelper = null; |
| } |
| } |
| } |