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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package ai.vespa.intellij.schema.hierarchy;
import com.intellij.ide.hierarchy.CallHierarchyBrowserBase;
import com.intellij.ide.hierarchy.HierarchyBrowser;
import com.intellij.ide.hierarchy.HierarchyProvider;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.editor.Editor;
import com.intellij.psi.PsiDocumentManager;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.PsiReference;
import ai.vespa.intellij.schema.psi.SdFunctionDefinition;
import ai.vespa.intellij.schema.psi.SdIdentifierVal;
import com.intellij.openapi.actionSystem.CommonDataKeys;
import com.intellij.openapi.project.Project;
/**
* This class is used for the extension (in plugin.xml), to enable "Call Hierarchy" window using the plugin code.
*
* @author Shahar Ariel
*/
public class SdCallHierarchyProvider implements HierarchyProvider {
@Override
public PsiElement getTarget(DataContext dataContext) {
final Project project = CommonDataKeys.PROJECT.getData(dataContext);
final Editor editor = CommonDataKeys.EDITOR.getData(dataContext);
if (project == null || editor == null) return null;
final PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(editor.getDocument());
if (file == null) {
return null;
}
final PsiElement element = file.findElementAt(editor.getCaretModel().getOffset());
if (element == null) {
return null;
}
if (element instanceof SdIdentifierVal || element.getParent() instanceof SdIdentifierVal) {
PsiReference ref = element instanceof SdIdentifierVal ? element.getReference() : element.getParent().getReference();
if (ref == null) {
return null;
}
PsiElement resolvedRef = ref.resolve();
if (resolvedRef instanceof SdFunctionDefinition) {
return resolvedRef;
}
}
return null;
}
@Override
public HierarchyBrowser createHierarchyBrowser(PsiElement target) {
return new SdCallHierarchyBrowser(target.getProject(), target);
}
@Override
public void browserActivated(HierarchyBrowser hierarchyBrowser) {
((SdCallHierarchyBrowser) hierarchyBrowser).changeView(CallHierarchyBrowserBase.getCallerType());
}
}
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