GLSLFindUsagesProvider.java

package glslplugin.extensions;

import com.intellij.lang.cacheBuilder.DefaultWordsScanner;
import com.intellij.lang.cacheBuilder.WordsScanner;
import com.intellij.lang.findUsages.FindUsagesProvider;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiNamedElement;
import com.intellij.psi.tree.TokenSet;
import glslplugin.lang.elements.GLSLTokenTypes;
import glslplugin.lang.scanner.GLSLFlexAdapter;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

/**
 *
 * Created by abigail on 26/06/15.
 */
public class GLSLFindUsagesProvider implements FindUsagesProvider {
    private static final DefaultWordsScanner WORDS_SCANNER =
            new DefaultWordsScanner(new GLSLFlexAdapter(),
                    TokenSet.create(GLSLTokenTypes.IDENTIFIER),
                    TokenSet.create(GLSLTokenTypes.COMMENT_LINE, GLSLTokenTypes.COMMENT_BLOCK),
                    TokenSet.create(GLSLTokenTypes.PREPROCESSOR_STRING));
    @Nullable
    @Override
    public WordsScanner getWordsScanner() {
        return WORDS_SCANNER;
    }

    @Override
    public boolean canFindUsagesFor(@NotNull PsiElement psiElement) {
        return psiElement instanceof PsiNamedElement;
    }

    @Nullable
    @Override
    public String getHelpId(@NotNull PsiElement psiElement) {
        return null;
    }

    @NotNull
    @Override
    public String getType(@NotNull PsiElement element) {
        return "GLSL Usage";
    }

    @NotNull
    @Override
    public String getDescriptiveName(@NotNull PsiElement element) {
        return element.toString();
    }

    @NotNull
    @Override
    public String getNodeText(@NotNull PsiElement element, boolean useFullName) {
        return element.toString();
    }
}