public PsiFile resolve() {
final PsiFile referencedFile = getReferencedFile();
if (referencedFile != null) {
return referencedFile;
}
if (myPsiFile != null) {
final PsiElement psiElement = myPsiFile.findElementAt(myLinkInfo.offset);
if (psiElement != null) {
final PsiElement parent = psiElement.getParent();
if (parent instanceof XmlTag) {
final XmlAttribute attribute = ((XmlTag) parent).getAttribute(HREF_ATTR);
if (attribute != null) {
final XmlAttributeValue value = attribute.getValueElement();
if (value != null) {
final PsiReference[] references = value.getReferences();
for (PsiReference reference : references) {
final PsiElement element = reference.resolve();
if (element instanceof PsiFile) {
return (PsiFile) element;
}
}
}
}
}
}
}
return null;
}
@Nullable
private static String getAttributeValue(final XmlTag tag, final String attrName) {
final XmlAttribute attribute = tag.getAttribute(attrName);
if (attribute != null) {
final XmlAttributeValue value = attribute.getValueElement();
if (value != null) {
if (PsiTreeUtil.getChildOfType(value, OuterLanguageElement.class) == null) {
return value.getValue();
}
}
}
return null;
}