source/com/intellij/ide/hierarchy/call/JavaCallHierarchyProvider.java

   1 package com.intellij.ide.hierarchy.call;
   2
   3 import com.intellij.ide.hierarchy.HierarchyProvider;
   4 import com.intellij.ide.hierarchy.HierarchyBrowser;
   5 import com.intellij.ide.hierarchy.CallHierarchyBrowserBase;
   6 import com.intellij.psi.PsiElement;
   7 import com.intellij.psi.PsiMethod;
   8 import com.intellij.psi.util.PsiTreeUtil;
   9 import com.intellij.openapi.actionSystem.DataContext;
  10 import com.intellij.openapi.actionSystem.PlatformDataKeys;
  11 import com.intellij.openapi.actionSystem.LangDataKeys;
  12 import com.intellij.openapi.project.Project;
  13
  14 /**
  15  * @author yole
  16  */
  17 public class JavaCallHierarchyProvider implements HierarchyProvider {
  18   public PsiElement getTarget(final DataContext dataContext) {
  19     final Project project = PlatformDataKeys.PROJECT.getData(dataContext);
  20     if (project == null) return null;
  21
  22     final PsiElement element = LangDataKeys.PSI_ELEMENT.getData(dataContext);
  23     return PsiTreeUtil.getParentOfType(element, PsiMethod.class, false);
  24   }
  25
  26   public HierarchyBrowser createHierarchyBrowser(final PsiElement target) {
  27     return new CallHierarchyBrowser(target.getProject(), (PsiMethod) target);
  28   }
  29
  30   public void browserActivated(final HierarchyBrowser hierarchyBrowser) {
  31     ((CallHierarchyBrowser) hierarchyBrowser).changeView(CallHierarchyBrowserBase.CALLER_TYPE);
  32   }
  33 }