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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.xml.ui.internal.correction;
import java.util.List;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.DocumentEvent;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.jface.text.contentassist.ICompletionProposal;
import org.eclipse.jface.text.contentassist.ICompletionProposalExtension2;
import org.eclipse.jface.text.contentassist.IContextInformation;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.text.edits.InsertEdit;
import org.eclipse.text.edits.MultiTextEdit;
import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion;
import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegion;
import org.eclipse.wst.sse.ui.internal.StructuredTextViewer;
import org.eclipse.wst.sse.ui.internal.contentassist.ContentAssistUtils;
import org.eclipse.wst.xml.core.internal.contentmodel.CMAttributeDeclaration;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode;
import org.eclipse.wst.xml.core.internal.regions.DOMRegionContext;
import org.eclipse.wst.xml.ui.internal.Logger;
import org.eclipse.wst.xml.ui.internal.XMLUIMessages;
import org.eclipse.wst.xml.ui.internal.editor.XMLEditorPluginImageHelper;
import org.eclipse.wst.xml.ui.internal.editor.XMLEditorPluginImages;
public class InsertRequiredAttrsQuickAssistProposal implements ICompletionProposal, ICompletionProposalExtension2 {
private final List fRequiredAttrs;
/**
* @param requiredAttrs
*/
public InsertRequiredAttrsQuickAssistProposal(List requiredAttrs) {
fRequiredAttrs = requiredAttrs;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.text.contentassist.ICompletionProposal#apply(org.eclipse.jface.text.IDocument)
*/
public void apply(IDocument document) {
// not implemented?
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension2#apply(org.eclipse.jface.text.ITextViewer,
* char, int, int)
*/
public void apply(ITextViewer viewer, char trigger, int stateMask, int offset) {
IDOMNode node = (IDOMNode) ContentAssistUtils.getNodeAt((StructuredTextViewer) viewer, offset);
IStructuredDocumentRegion startStructuredDocumentRegion = node.getStartStructuredDocumentRegion();
int index = startStructuredDocumentRegion.getEndOffset();
ITextRegion lastRegion = startStructuredDocumentRegion.getLastRegion();
if (lastRegion.getType() == DOMRegionContext.XML_TAG_CLOSE) {
index--;
lastRegion = startStructuredDocumentRegion.getRegionAtCharacterOffset(index - 1);
}
else if (lastRegion.getType() == DOMRegionContext.XML_EMPTY_TAG_CLOSE) {
index = index - 2;
lastRegion = startStructuredDocumentRegion.getRegionAtCharacterOffset(index - 1);
}
MultiTextEdit multiTextEdit = new MultiTextEdit();
try {
for (int i = 0; i < fRequiredAttrs.size(); i++) {
CMAttributeDeclaration attrDecl = (CMAttributeDeclaration) fRequiredAttrs.get(i);
String requiredAttributeName = attrDecl.getAttrName();
String defaultValue = attrDecl.getDefaultValue();
if (defaultValue == null)
defaultValue = ""; //$NON-NLS-1$
String nameAndDefaultValue = " "; //$NON-NLS-1$
if (i == 0 && lastRegion.getLength() > lastRegion.getTextLength())
nameAndDefaultValue = ""; //$NON-NLS-1$
nameAndDefaultValue += requiredAttributeName + "=\"" + defaultValue + "\""; //$NON-NLS-1$//$NON-NLS-2$
multiTextEdit.addChild(new InsertEdit(index, nameAndDefaultValue));
// BUG3381: MultiTextEdit applies all child TextEdit's basing
// on offsets
// in the document before the first TextEdit, not after each
// child TextEdit. Therefore, do not need to advance the
// index.
// index += nameAndDefaultValue.length();
}
multiTextEdit.apply(viewer.getDocument());
}
catch (BadLocationException e) {
// log, for now, unless we find there's reasons why we get some
// here.
Logger.log(Logger.INFO, e.getMessage());
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.text.contentassist.ICompletionProposal#getAdditionalProposalInfo()
*/
public String getAdditionalProposalInfo() {
return XMLUIMessages.InsertRequiredAttrsQuickAssistProposal_0; //$NON-NLS-1$
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.text.contentassist.ICompletionProposal#getContextInformation()
*/
public IContextInformation getContextInformation() {
return null;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.text.contentassist.ICompletionProposal#getDisplayString()
*/
public String getDisplayString() {
return XMLUIMessages.InsertRequiredAttrsQuickAssistProposal_1; //$NON-NLS-1$
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.text.contentassist.ICompletionProposal#getImage()
*/
public Image getImage() {
// return JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_LOCAL);
return XMLEditorPluginImageHelper.getInstance().getImage(XMLEditorPluginImages.IMG_OBJ_ADD_CORRECTION);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.text.contentassist.ICompletionProposal#getSelection(org.eclipse.jface.text.IDocument)
*/
public Point getSelection(IDocument document) {
return null;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension2#selected(org.eclipse.jface.text.ITextViewer,
* boolean)
*/
public void selected(ITextViewer viewer, boolean smartToggle) {
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension2#unselected(org.eclipse.jface.text.ITextViewer)
*/
public void unselected(ITextViewer viewer) {
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension2#validate(org.eclipse.jface.text.IDocument,
* int, org.eclipse.jface.text.DocumentEvent)
*/
public boolean validate(IDocument document, int offset, DocumentEvent event) {
return false;
}
}
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