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/*******************************************************************************
* Copyright (c) 2003, 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
*******************************************************************************/
/*
* Created on Sep 4, 2003
*
* To change the template for this generated file go to
* Window>Preferences>Java>Code Generation>Code and Comments
*/
package org.eclipse.jst.common.internal.annotations.ui;
import org.eclipse.jdt.internal.ui.text.java.JavaCompletionProposal;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jst.common.internal.annotations.registry.AttributeValueProposalHelper;
import org.eclipse.swt.graphics.Image;
/**
* @author kelleyp
*
* A completion proposal especially for Annotation tag completions. This problem this class was
* created to solve was the problem of attaching help text to a proposal. The mechanism inside of
* JavaCompletionProposal was useless to us, since it was tied to the idea that the proposal would
* be for an actual java element, that has javadoc attached to it, etc... So here we subclass
* JavaCompletionProposal and override <code>getAdditionalProposalInfo</code> for a more suitable
* way of associating help text with a proposal.
*/
public class AnnotationTagProposal extends JavaCompletionProposal {
private static final char QUOTE = '"';
private boolean ensureBeginQuote = false;
private boolean ensureEndQuote = false;
private String localString;
//private String partialValueString;
//private AttributeValueProposalHelper helper;
/**
* Localized help text.
*/
private String locText;
/**
* @see JavaCompletionProposal#JavaCompletionProposal(java.lang.String, int, int,
* org.eclipse.swt.graphics.Image, java.lang.String, int)
* @param replacementString
* @param replacementOffset
* @param replacementLength
* @param image
* @param displayString
* @param relevance
*/
public AnnotationTagProposal(String replacementString, int replacementOffset, int replacementLength, Image image, String displayString, int relevance) {
super(replacementString, replacementOffset, replacementLength, image, displayString, relevance);
this.localString = displayString;
}
/**
* @see JavaCompletionProposal#JavaCompletionProposal(java.lang.String, int, int,
* org.eclipse.swt.graphics.Image, java.lang.String, int,
* org.eclipse.jface.text.ITextViewer)
* @param replacementString
* @param replacementOffset
* @param replacementLength
* @param image
* @param displayString
* @param relevance
*/
public AnnotationTagProposal(AttributeValueProposalHelper proposalHelper) {
this(proposalHelper.getReplacementString(), proposalHelper.getValueOffset(), proposalHelper.getReplacementLength(), null, proposalHelper.getValueDisplayString(), 1);
if (proposalHelper instanceof UIAttributeValueProposalHelper)
setImage(((UIAttributeValueProposalHelper) proposalHelper).getImage());
setEnsureBeginQuote(proposalHelper.ensureBeginQuote());
setEnsureEndQuote(proposalHelper.ensureEndQuote());
}
public AnnotationTagProposal(UIAttributeValueProposalHelper proposalHelper) {
this(proposalHelper.getReplacementString(), proposalHelper.getValueOffset(), proposalHelper.getReplacementLength(), proposalHelper.getImage(), proposalHelper.getValueDisplayString(), 1);
setEnsureBeginQuote(proposalHelper.ensureBeginQuote());
setEnsureEndQuote(proposalHelper.ensureEndQuote());
}
/**
* Our override that uses <code>textHolder</code> to provide the help text.
*/
public String getAdditionalProposalInfo() {
return locText;
}
/**
* Sets the holder of the help text that can be displayed with this proposal.
*
* @param hld
* an LocalizedTextContainer
*/
public void setHelpText(String s) {
locText = s;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jdt.internal.ui.text.java.JavaCompletionProposal#apply(org.eclipse.jface.text.IDocument,
* char, int)
*/
public void apply(IDocument document, char trigger, int offset) {
ensureQuotedIfNecessary(document, offset);
super.apply(document, trigger, offset);
}
/**
* @param document
* @param offset
*/
private void ensureQuotedIfNecessary(IDocument document, int offset) {
if (ensureBeginQuote || ensureEndQuote) {
try {
char begin = document.getChar(getReplacementOffset() - 1);
char end = document.getChar(offset);
if (ensureBeginQuote && ensureEndQuote && begin != QUOTE && end != QUOTE) {
StringBuffer b = new StringBuffer();
b.append(QUOTE).append(localString).append(QUOTE);
localString = b.toString();
} else if (ensureBeginQuote && begin != QUOTE)
localString = QUOTE + localString;
else if (ensureEndQuote && end != QUOTE)
localString = localString + QUOTE;
setReplacementString(localString);
setCursorPosition(localString.length());
} catch (BadLocationException e) {
// Do nothing
}
}
}
public void setEnsureQuoted(boolean ensureQuoted) {
setEnsureBeginQuote(ensureQuoted);
setEnsureEndQuote(ensureQuoted);
}
//public void setPartialValueString(String partialValueString) {
// this.partialValueString = partialValueString;
//}
public void setEnsureBeginQuote(boolean ensureBeginQuote) {
this.ensureBeginQuote = ensureBeginQuote;
}
public void setEnsureEndQuote(boolean ensureEndQuote) {
this.ensureEndQuote = ensureEndQuote;
}
}
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