package tk.eclipse.plugin.htmleditor.assist;
import org.eclipse.jdt.core.CompletionProposal;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.contentassist.ICompletionProposal;
import org.eclipse.jface.text.contentassist.ICompletionProposalExtension6;
import org.eclipse.jface.text.contentassist.IContextInformation;
import org.eclipse.jface.viewers.StyledString;
import org.eclipse.jface.viewers.StyledString.Styler;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.TextStyle;
/**
* Represents a completion proposal for the HTML editor that is deprecated. This should have been a
* subclass of {@link CompletionProposal} but unfortunately that class is final.
*
* @author jw
*/
public class HTMLDeprecatedCompletionProposal implements ICompletionProposal, ICompletionProposalExtension6 {
/** The string to be displayed in the completion proposal popup. */
private String fDisplayString;
/** The replacement string. */
private String fReplacementString;
/** The replacement offset. */
private int fReplacementOffset;
/** The replacement length. */
private int fReplacementLength;
/** The cursor position after this proposal has been applied. */
private int fCursorPosition;
/** The image to be displayed in the completion proposal popup. */
private Image fImage;
/** The context information of this proposal. */
private IContextInformation fContextInformation;
/** The additional info of this proposal. */
private String fAdditionalProposalInfo;
private static final StrikeThroughStyler _strikeThroughStyler = new StrikeThroughStyler();
public HTMLDeprecatedCompletionProposal(String replacementString, int replacementOffset, int replacementLength, int cursorPosition) {
this(replacementString, replacementOffset, replacementLength, cursorPosition, null, null, null, null);
}
public HTMLDeprecatedCompletionProposal(String replacementString, int replacementOffset, int replacementLength, int cursorPosition, Image image, String displayString, IContextInformation contextInformation, String additionalProposalInfo) {
fReplacementString= replacementString;
fReplacementOffset= replacementOffset;
fReplacementLength= replacementLength;
fCursorPosition= cursorPosition;
fImage= image;
fDisplayString= displayString;
fContextInformation= contextInformation;
fAdditionalProposalInfo= additionalProposalInfo;
}
public StyledString getStyledDisplayString() {
return new StyledString(getDisplayString(), _strikeThroughStyler);
}
/*
* @see ICompletionProposal#apply(IDocument)
*/
public void apply(IDocument document) {
try {
document.replace(fReplacementOffset, fReplacementLength, fReplacementString);
} catch (BadLocationException x) {
// ignore
}
}
/*
* @see ICompletionProposal#getSelection(IDocument)
*/
public Point getSelection(IDocument document) {
return new Point(fReplacementOffset + fCursorPosition, 0);
}
/*
* @see ICompletionProposal#getContextInformation()
*/
public IContextInformation getContextInformation() {
return fContextInformation;
}
/*
* @see ICompletionProposal#getImage()
*/
public Image getImage() {
return fImage;
}
/*
* @see ICompletionProposal#getDisplayString()
*/
public String getDisplayString() {
if (fDisplayString != null)
return fDisplayString;
return fReplacementString;
}
/*
* @see ICompletionProposal#getAdditionalProposalInfo()
*/
public String getAdditionalProposalInfo() {
return fAdditionalProposalInfo;
}
private static class StrikeThroughStyler extends Styler {
@Override
public void applyStyles(TextStyle textStyle) {
textStyle.strikeout = true;
}
}
}