[by peter:] get quick doc info from the place-specific documentation provider; DomChildrenDescription<: PomTarget

platform/lang-impl/src/com/intellij/codeInsight/documentation/DocumentationManager.java

@@ -753,7 +753,7 @@ public class DocumentationManager {
   }
 
   @NotNull
-  private static DocumentationProvider getProviderFromElement(@Nullable PsiElement element, @Nullable PsiElement originalElement) {
+  public static DocumentationProvider getProviderFromElement(@Nullable PsiElement element, @Nullable PsiElement originalElement) {
     if (element != null && !element.isValid()) {
       element = null;
     }

platform/lang-impl/src/com/intellij/codeInsight/navigation/CtrlMouseHandler.java

@@ -223,8 +223,8 @@ public class CtrlMouseHandler extends AbstractProjectComponent {
   }
 
   @Nullable
-  private static String generateInfo(PsiElement element) {
-    final DocumentationProvider documentationProvider = DocumentationManager.getProviderFromElement(element);
+  private static String generateInfo(PsiElement element, PsiElement atPointer) {
+    final DocumentationProvider documentationProvider = DocumentationManager.getProviderFromElement(element, atPointer);
 
     String info = documentationProvider.getQuickNavigateInfo(element);
     if (info != null) {
@@ -305,7 +305,7 @@ public class CtrlMouseHandler extends AbstractProjectComponent {
     @Nullable
     public String getInfo() {
       try {
-        return generateInfo(myTargetElement);
+        return generateInfo(myTargetElement, myElementAtPointer);
       }
       catch (IndexNotReadyException e) {
         showDumbModeNotification(myTargetElement.getProject());

platform/lang-impl/src/com/intellij/psi/impl/PomTargetPsiElementImpl.java

@@ -16,6 +16,7 @@
 package com.intellij.psi.impl;
 
 import com.intellij.ide.IconProvider;
+import com.intellij.lang.Language;
 import com.intellij.openapi.project.Project;
 import com.intellij.pom.*;
 import com.intellij.psi.PsiElement;
@@ -164,6 +165,14 @@ public class PomTargetPsiElementImpl extends RenameableFakePsiElement implements
     return null;
   }
 
+  @NotNull
+  public Language getLanguage() {
+    if (myTarget instanceof PsiTarget) {
+      return ((PsiTarget)myTarget).getNavigationElement().getLanguage();
+    }
+    return Language.ANY;
+  }
+
   @NotNull
   @Override
   public Project getProject() {

xml/dom-impl/src/com/intellij/util/xml/impl/DomChildDescriptionImpl.java

@@ -21,6 +21,25 @@ public abstract class DomChildDescriptionImpl extends AbstractDomChildDescriptio
     myTagName = tagName;
   }
 
+  public String getName() {
+    return myTagName.getLocalName();
+  }
+
+  public boolean isValid() {
+    return true;
+  }
+
+  public void navigate(boolean requestFocus) {
+  }
+
+  public boolean canNavigate() {
+    return false;
+  }
+
+  public boolean canNavigateToSource() {
+    return false;
+  }
+
   @NotNull
   public String getXmlElementName() {
     return myTagName.getLocalName();

xml/dom-impl/src/com/intellij/xml/impl/dom/DomElementXmlDescriptor.java

@@ -17,9 +17,9 @@ package com.intellij.xml.impl.dom;
 
 import com.intellij.openapi.util.Key;
 import com.intellij.openapi.util.text.StringUtil;
+import com.intellij.pom.references.PomService;
 import com.intellij.psi.PsiElement;
 import com.intellij.psi.PsiFile;
-import com.intellij.psi.impl.FakePsiElement;
 import com.intellij.psi.xml.XmlAttribute;
 import com.intellij.psi.xml.XmlDocument;
 import com.intellij.psi.xml.XmlFile;
@@ -204,11 +204,7 @@ public class DomElementXmlDescriptor implements XmlElementDescriptor {
 
     if (declaration != null) return declaration.getXmlElement();
 
-    return new FakePsiElement() {
-      public PsiElement getParent() {
-        return DomUtil.getFile(mySomeElement);
-      }
-    };
+    return PomService.convertToPsi(myManager.getProject(), myChildrenDescription);
   }
 
   @NonNls
@@ -255,6 +251,25 @@ public class DomElementXmlDescriptor implements XmlElementDescriptor {
       myDomElement = domElement;
     }
 
+    public String getName() {
+      return getXmlElementName();
+    }
+
+    public boolean isValid() {
+      return true;
+    }
+
+    public void navigate(boolean requestFocus) {
+    }
+
+    public boolean canNavigate() {
+      return false;
+    }
+
+    public boolean canNavigateToSource() {
+      return false;
+    }
+
     @NotNull
     public XmlName getXmlName() {
       throw new UnsupportedOperationException("Method getXmlName not implemented in " + getClass());
@@ -304,4 +319,5 @@ public class DomElementXmlDescriptor implements XmlElementDescriptor {
           throw new UnsupportedOperationException("Method getAnnotation not implemented in " + getClass());
         }
   }
+
 }

xml/dom-openapi/src/com/intellij/util/xml/reflect/DomChildrenDescription.java

@@ -15,6 +15,7 @@
  */
 package com.intellij.util.xml.reflect;
 
+import com.intellij.pom.PomNamedTarget;
 import com.intellij.util.xml.DomElement;
 import com.intellij.util.xml.DomNameStrategy;
 import com.intellij.util.xml.XmlName;
@@ -23,7 +24,7 @@ import org.jetbrains.annotations.NotNull;
 /**
  * @author peter
  */
-public interface DomChildrenDescription extends AbstractDomChildrenDescription {
+public interface DomChildrenDescription extends AbstractDomChildrenDescription, PomNamedTarget {
 
   @NotNull
   XmlName getXmlName();