Add breadcrumbs provider

src/main/java/com/justint/usdidea/codeinsight/USDBreadcrumbsProvider.java

@@ -0,0 +1,30 @@
+package com.justint.usdidea.codeinsight;
+
+import com.intellij.lang.Language;
+import com.intellij.psi.PsiElement;
+import com.intellij.ui.breadcrumbs.BreadcrumbsProvider;
+import com.justint.usdidea.lang.USDLanguage;
+import com.justint.usdidea.lang.psi.impl.usdPrimSpecImpl;
+import org.jetbrains.annotations.NotNull;
+
+public class USDBreadcrumbsProvider implements BreadcrumbsProvider {
+
+    @Override
+    public Language[] getLanguages() {
+        return new Language[]{USDLanguage.INSTANCE};
+    }
+
+    @Override
+    public boolean acceptElement(@NotNull PsiElement psiElement) {
+        return psiElement instanceof usdPrimSpecImpl;
+    }
+
+    @NotNull
+    @Override
+    public String getElementInfo(@NotNull PsiElement psiElement) {
+        if (psiElement instanceof usdPrimSpecImpl) {
+            return ((usdPrimSpecImpl) psiElement).getName();
+        }
+        else return "";
+    }
+}

src/main/resources/META-INF/plugin.xml

@@ -38,6 +38,8 @@
         <lang.foldingBuilder language="USD" implementationClass="com.justint.usdidea.codeinsight.folding.USDFoldingBuilder"/>
         <lang.braceMatcher language="USD" implementationClass="com.justint.usdidea.codeinsight.highlighting.USDBraceMatcher"/>
 
+        <breadcrumbsInfoProvider implementation="com.justint.usdidea.codeinsight.USDBreadcrumbsProvider"/>
+
     </extensions>
 
     <actions>