| /******************************************************************************* |
| * Copyright (c) 2006 Sybase, Inc. 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: |
| * Sybase, Inc. - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jst.pagedesigner.editors; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.ITextViewer; |
| import org.eclipse.jst.pagedesigner.dnd.internal.DesignerSourceDropTargetListener; |
| import org.eclipse.jst.pagedesigner.utils.StructuredModelUtil; |
| import org.eclipse.swt.dnd.DND; |
| import org.eclipse.swt.dnd.DropTarget; |
| import org.eclipse.ui.IEditorInput; |
| import org.eclipse.ui.texteditor.IDocumentProvider; |
| import org.eclipse.ui.texteditor.ITextEditorDropTargetListener; |
| import org.eclipse.wst.sse.core.StructuredModelManager; |
| import org.eclipse.wst.sse.core.internal.provisional.IModelStateListener; |
| import org.eclipse.wst.sse.core.internal.provisional.IStructuredModel; |
| import org.eclipse.wst.sse.ui.StructuredTextEditor; |
| |
| /** |
| * @author mengbo |
| */ |
| public class DesignerStructuredTextEditorJSP extends StructuredTextEditor |
| { |
| private ITextEditorDropTargetListener _dropTargetListener; |
| private DropTarget _dropTarget; |
| private IStructuredModel _structuredModel; |
| private IModelStateListener _modelStateListener; |
| |
| @Override |
| protected void initializeDrop(final ITextViewer viewer) |
| { |
| int operations = DND.DROP_COPY | DND.DROP_MOVE; |
| _dropTarget = new DropTarget(viewer.getTextWidget(), operations); |
| _dropTargetListener = |
| new DesignerSourceDropTargetListener(this); |
| _dropTarget.setTransfer(_dropTargetListener.getTransfers()); |
| _dropTarget.addDropListener(_dropTargetListener); |
| } |
| |
| @Override |
| public IAction getAction(final String actionID) |
| { |
| try |
| { |
| return super.getAction(actionID); |
| } catch (final Exception e) |
| { |
| return null; |
| } |
| } |
| |
| @Override |
| public Object getAdapter(final Class required) |
| { |
| if (ITextEditorDropTargetListener.class.equals(required)) |
| { |
| final DesignerSourceDropTargetListener listener = new DesignerSourceDropTargetListener( |
| this); |
| return listener; |
| } |
| return super.getAdapter(required); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.wst.sse.ui.StructuredTextEditor#doSetInput(org.eclipse.ui.IEditorInput) |
| */ |
| @Override |
| protected void doSetInput(IEditorInput input) throws CoreException { |
| super.doSetInput(input); |
| addModelStateListener(); |
| } |
| |
| @Override |
| public void dispose() |
| { |
| if (_dropTargetListener != null) |
| { |
| _dropTargetListener = null; |
| } |
| if (_dropTarget != null) |
| { |
| _dropTarget.dispose(); |
| _dropTarget = null; |
| } |
| removeModelStateListener(); |
| if (_structuredModel != null) { |
| _structuredModel.releaseFromRead(); |
| _structuredModel = null; |
| } |
| super.dispose(); |
| } |
| |
| private IStructuredModel getStructuredModel() { |
| IStructuredModel model = null; |
| if (_structuredModel != null) { |
| model = _structuredModel; |
| } else { |
| IDocumentProvider provider = getDocumentProvider(); |
| if (provider != null) { |
| IDocument document = provider.getDocument(getEditorInput()); |
| _structuredModel = StructuredModelManager.getModelManager().getExistingModelForRead(document); |
| model = _structuredModel; |
| } |
| } |
| return model; |
| } |
| |
| private void addModelStateListener() { |
| IStructuredModel model = getStructuredModel(); |
| if (model != null) { |
| if (_modelStateListener == null) { |
| _modelStateListener = new ModelStateListener(); |
| } else { |
| model.removeModelStateListener(_modelStateListener); |
| } |
| model.addModelStateListener(_modelStateListener); |
| } |
| } |
| |
| private void removeModelStateListener() { |
| IStructuredModel model = getStructuredModel(); |
| if (model != null) { |
| if (_modelStateListener != null) { |
| model.removeModelStateListener(_modelStateListener); |
| _modelStateListener = null; |
| } |
| } |
| } |
| |
| private class ModelStateListener implements IModelStateListener { |
| |
| public void modelAboutToBeChanged(IStructuredModel model) { |
| //do nothing |
| } |
| |
| public void modelChanged(IStructuredModel model) { |
| //do nothing |
| } |
| |
| public void modelDirtyStateChanged(IStructuredModel model, boolean isDirty) { |
| //Bug 330412 - [WPE] Drag 'n' Drop of tag from palette doesn't notify team system of edit |
| //Bug 330413 - [WPE] Modifying tag attribute using property sheet doesn't notify team system of edit |
| if (isDirty) { |
| IFile file = StructuredModelUtil.getFileFor(model); |
| if (file != null) { |
| file.getWorkspace().validateEdit(new IFile[]{file}, null); |
| } |
| } |
| } |
| |
| public void modelResourceDeleted(IStructuredModel model) { |
| //do nothing |
| } |
| |
| public void modelResourceMoved(IStructuredModel oldModel, IStructuredModel newModel) { |
| //do nothing |
| } |
| |
| public void modelAboutToBeReinitialized(IStructuredModel structuredModel) { |
| //do nothing |
| } |
| |
| public void modelReinitialized(IStructuredModel structuredModel) { |
| //do nothing |
| } |
| } |
| |
| } |