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/*******************************************************************************
* Copyright (c) 2001, 2004 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.sse.ui.internal;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.ITextSelection;
import org.eclipse.jface.text.TextSelection;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.swt.dnd.DropTargetEvent;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.texteditor.ITextEditor;
import org.eclipse.wst.sse.ui.internal.provisional.extensions.ISourceEditingTextTools;
/**
*/
public abstract class AbstractDropAction implements IDropAction {
/*
* Replaces targetEditor's current selection by "text"
*/
protected boolean insert(String text, IEditorPart targetEditor) {
if (text == null || text.length() == 0) {
return true;
}
ITextSelection textSelection = null;
IDocument doc = null;
ISelection selection = null;
ISourceEditingTextTools tools = (ISourceEditingTextTools) targetEditor.getAdapter(ISourceEditingTextTools.class);
if (tools != null) {
doc = tools.getDocument();
selection = tools.getSelection();
}
ITextEditor textEditor = null;
if (targetEditor instanceof ITextEditor) {
textEditor = (ITextEditor) targetEditor;
}
if (textEditor == null) {
textEditor = (ITextEditor) ((IAdaptable) targetEditor).getAdapter(ITextEditor.class);
}
if (textEditor == null && tools != null && tools.getEditorPart() instanceof ITextEditor) {
textEditor = (ITextEditor) tools.getEditorPart();
}
if (textEditor == null && tools != null && tools.getEditorPart() != null) {
textEditor = (ITextEditor) tools.getEditorPart().getAdapter(ITextEditor.class);
}
if (selection == null && textEditor != null) {
selection = textEditor.getSelectionProvider().getSelection();
}
if (doc == null && textEditor != null) {
doc = textEditor.getDocumentProvider().getDocument(textEditor.getEditorInput());
}
if (selection instanceof ITextSelection) {
textSelection = (ITextSelection) selection;
try {
doc.replace(textSelection.getOffset(), textSelection.getLength(), text);
}
catch (BadLocationException e) {
return false;
}
}
if (textEditor != null && textSelection != null) {
ISelectionProvider sp = textEditor.getSelectionProvider();
ITextSelection sel = new TextSelection(textSelection.getOffset(), text.length());
sp.setSelection(sel);
textEditor.selectAndReveal(sel.getOffset(), sel.getLength());
}
return true;
}
public boolean isSupportedData(Object data) {
return true;
}
public abstract boolean run(DropTargetEvent event, IEditorPart targetEditor);
}
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