/**
* Possibly compute the hover. Might return null
*
* @param hoverRegion
* @param elements
* @return
*/
private Object computeHover(IRegion hoverRegion, IJavaElement[] elements) {
Object hover;
hover =
ReflectionUtils.executePrivateMethod(
JavadocHover.class,
"getHoverInfo",
new Class[] {
IJavaElement[].class,
ITypeRoot.class,
IRegion.class,
JavadocBrowserInformationControlInput.class
},
this,
new Object[] {elements, getEditorInputJavaElement(), hoverRegion, null});
if (hover instanceof JavadocBrowserInformationControlInput
&& elements[0] instanceof IGroovyResolvedElement) {
JavadocBrowserInformationControlInput input = (JavadocBrowserInformationControlInput) hover;
hover =
new JavadocBrowserInformationControlInput(
(JavadocBrowserInformationControlInput) input.getPrevious(),
input.getElement(),
wrapHTML(input, (IGroovyResolvedElement) elements[0]),
input.getLeadingImageWidth());
}
return hover;
}
protected String wrapHTML(
JavadocBrowserInformationControlInput input, IGroovyResolvedElement elt) {
// only use a preamble if the name of the inferred element is not the
// same as the resolved element.
String preamble;
if (!elt.getElementName().equals(elt.getInferredElementName())) {
preamble = createLabel(elt.getInferredElement());
} else {
preamble = "";
}
if (elt.getExtraDoc() != null) {
return preamble + elt.getExtraDoc() + "\n<br><hr/><br>\n" + input.getHtml();
} else {
return preamble + input.getHtml();
}
}