@Nullable
private static String getQuickNavigateInfo(PsiElement element) {
final String name =
ElementDescriptionUtil.getElementDescription(element, UsageViewShortNameLocation.INSTANCE);
if (StringUtil.isEmpty(name)) return null;
final String typeName =
ElementDescriptionUtil.getElementDescription(element, UsageViewTypeLocation.INSTANCE);
final PsiFile file = element.getContainingFile();
final StringBuilder sb = new StringBuilder();
if (StringUtil.isNotEmpty(typeName)) sb.append(typeName).append(" ");
sb.append("\"").append(name).append("\"");
if (file != null && file.isPhysical()) {
sb.append(" [").append(file.getName()).append("]");
}
return sb.toString();
}
@Nullable
private Info getInfoAt(final Editor editor, PsiFile file, int offset, BrowseMode browseMode) {
PsiElement targetElement = null;
if (browseMode == BrowseMode.TypeDeclaration) {
try {
targetElement = GotoTypeDeclarationAction.findSymbolType(editor, offset);
} catch (IndexNotReadyException e) {
showDumbModeNotification(myProject);
}
} else if (browseMode == BrowseMode.Declaration) {
final PsiReference ref = TargetElementUtilBase.findReference(editor, offset);
final List<PsiElement> resolvedElements =
ref != null ? resolve(ref) : Collections.<PsiElement>emptyList();
final PsiElement resolvedElement =
resolvedElements.size() == 1 ? resolvedElements.get(0) : null;
final PsiElement[] targetElements =
GotoDeclarationAction.findTargetElementsNoVS(myProject, editor, offset);
final PsiElement elementAtPointer = file.findElementAt(offset);
if (targetElements != null) {
if (targetElements.length == 0) {
return null;
} else if (targetElements.length == 1) {
if (targetElements[0] != resolvedElement
&& elementAtPointer != null
&& targetElements[0].isPhysical()) {
return new InfoSingle(elementAtPointer, targetElements[0]);
}
} else {
return elementAtPointer != null ? new InfoMultiple(elementAtPointer) : null;
}
}
if (resolvedElements.size() == 1) {
return new InfoSingle(ref, resolvedElements.get(0));
} else if (resolvedElements.size() > 1) {
return new InfoMultiple(elementAtPointer);
}
} else if (browseMode == BrowseMode.Implementation) {
final PsiElement element =
TargetElementUtilBase.getInstance()
.findTargetElement(editor, ImplementationSearcher.getFlags(), offset);
PsiElement[] targetElements =
new ImplementationSearcher() {
@NotNull
protected PsiElement[] searchDefinitions(final PsiElement element) {
final List<PsiElement> found = new ArrayList<PsiElement>(2);
DefinitionsSearch.search(element)
.forEach(
new Processor<PsiElement>() {
public boolean process(final PsiElement psiElement) {
found.add(psiElement);
return found.size() != 2;
}
});
return PsiUtilBase.toPsiElementArray(found);
}
}.searchImplementations(editor, element, offset);
if (targetElements.length > 1) {
PsiElement elementAtPointer = file.findElementAt(offset);
if (elementAtPointer != null) {
return new InfoMultiple(elementAtPointer);
}
return null;
}
if (targetElements.length == 1) {
Navigatable descriptor = EditSourceUtil.getDescriptor(targetElements[0]);
if (descriptor == null || !descriptor.canNavigate()) {
return null;
}
targetElement = targetElements[0];
}
}
if (targetElement != null && targetElement.isPhysical()) {
PsiElement elementAtPointer = file.findElementAt(offset);
if (elementAtPointer != null) {
return new InfoSingle(elementAtPointer, targetElement);
}
}
return null;
}