| /******************************************************************************* |
| * 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.editors; |
| |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.ui.IEditorInput; |
| import org.eclipse.ui.IPersistableElement; |
| |
| /** |
| * Editor input for TextEditor. |
| */ |
| @SuppressWarnings("nls") |
| public class TextEditorInput implements IEditorInput { |
| |
| /** body of the document, the initial value */ |
| String fBody = ""; |
| |
| /** A context object */ |
| Object fContext; |
| |
| // expression context |
| String fExpressionContext; |
| |
| /** |
| * Create a new Text Editor Input. |
| * @param text |
| * @param eObject |
| * @param expressionContext |
| */ |
| |
| public TextEditorInput (String text, Object eObject, String expressionContext) { |
| setEditorContent (text,eObject,expressionContext); |
| } |
| |
| |
| /** |
| * @return return the expression context, represented by this TextEditor input. |
| */ |
| |
| public String getExpressionContext() { |
| return fExpressionContext; |
| } |
| |
| /** |
| * Returns the body from this TextEditorInput. This may include the modified editor |
| * body once the editor has notified us that its content has changed. |
| * |
| * @return the editor's body. |
| */ |
| |
| public String getEditorContent() { |
| return fDocument == null ? fBody : fDocument.get() ; |
| } |
| |
| /** |
| * Set the body on the document. |
| * |
| * @param text |
| * @param eObject |
| */ |
| |
| public void setEditorContent (String text, Object eObject ) { |
| fBody = text; |
| fContext = eObject; |
| if (fDocument != null) { |
| fDocument.set(text); |
| } |
| |
| } |
| |
| /** |
| * Set the body on the document. |
| * |
| * @param text |
| * @param eObject |
| * |
| * @param expressionContext |
| * |
| */ |
| |
| public void setEditorContent (String text, Object eObject, String expressionContext) { |
| |
| fBody = text; |
| fContext = eObject; |
| fExpressionContext = expressionContext; |
| |
| if (fDocument != null) { |
| fDocument.set(text); |
| } |
| } |
| |
| /** (non-Javadoc) |
| * @see org.eclipse.ui.IEditorInput#exists() |
| */ |
| |
| public boolean exists() { |
| return false; |
| } |
| |
| /** (non-Javadoc) |
| * @see org.eclipse.ui.IEditorInput#getImageDescriptor() |
| */ |
| |
| public ImageDescriptor getImageDescriptor() { |
| return null; |
| } |
| |
| /** (non-Javadoc) |
| * @see org.eclipse.ui.IEditorInput#getName() |
| */ |
| public String getName() { |
| return null; |
| } |
| |
| /** (non-Javadoc) |
| * @see org.eclipse.ui.IEditorInput#getPersistable() |
| */ |
| public IPersistableElement getPersistable() { |
| return null; |
| } |
| |
| /** (non-Javadoc) |
| * @see org.eclipse.ui.IEditorInput#getToolTipText() |
| */ |
| public String getToolTipText() { |
| return "XPath Expressions"; //$NON-NLS-1$ |
| } |
| |
| /** |
| * Adapt to the adapter class. |
| * |
| * The receiver carries the string input to the editor, so if String.class is passed |
| * we just return that. |
| * |
| * We also hold a context object. If the context object is of the adapter class we |
| * return it is. The context object can be anything ... in our case we pass the reference |
| * to the model object that is "closest" to the expression node. |
| * @param adapter The adapter class to use. |
| * @return the adapted object ... |
| */ |
| |
| |
| |
| @SuppressWarnings("unchecked") |
| public Object getAdapter (Class adapter) { |
| |
| if (adapter.isInstance(fContext)) { |
| return fContext; |
| } |
| |
| if (adapter.isInstance(fBody)) { |
| return getEditorContent() ; |
| } |
| |
| // hack |
| if (adapter == Integer.class) { |
| return fExpressionContext; |
| } |
| |
| return null; |
| } |
| |
| |
| IDocument fDocument; |
| |
| /** |
| * Set the document that this text editor input manages. |
| * |
| * @param doc |
| */ |
| |
| public void setDocument ( IDocument doc ) { |
| fDocument = doc; |
| } |
| |
| } |