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package org.netbeans.modules.gsfret.editor.hyperlink;

import java.util.EnumSet;
import java.util.Set;
import javax.swing.text.Document;

import org.netbeans.lib.editor.hyperlink.spi.HyperlinkProviderExt;
import org.netbeans.lib.editor.hyperlink.spi.HyperlinkType;


/**
 * Implementation of the hyperlink provider for generic languages.
 * <br>
 * The hyperlinks are constructed for identifiers.
 * <br>
 * The click action corresponds to performing the goto-declaration action.
 *
 * @author Jan Lahoda
 */
public final class GsfHyperlinkProvider implements HyperlinkProviderExt {
    /** Creates a new instance of GsfHyperlinkProvider */
    public GsfHyperlinkProvider() {
    }

    public Set<HyperlinkType> getSupportedHyperlinkTypes() {
        return EnumSet.of(HyperlinkType.GO_TO_DECLARATION);
    }

    public boolean isHyperlinkPoint(Document doc, int offset, HyperlinkType type) {
        return getHyperlinkSpan(doc, offset, type) != null;
    }

    public int[] getHyperlinkSpan(Document doc, int offset, HyperlinkType type) {
        return GoToSupport.getIdentifierSpan(doc, offset);
    }

    public void performClickAction(Document doc, int offset, HyperlinkType type) {
        GoToSupport.performGoTo(doc, offset);
    }

    public String getTooltipText(Document doc, int offset, HyperlinkType type) {
        return GoToSupport.getGoToElementTooltip(doc, offset);
    }
}
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