@Override
public void actionPerformed(AnActionEvent e) {
if (myElement != null) {
final PsiElement element = myElement.getElement();
final DocumentationProvider provider = DocumentationManager.getProviderFromElement(element);
final PsiElement originalElement = DocumentationManager.getOriginalElement(element);
boolean processed = false;
if (provider instanceof CompositeDocumentationProvider) {
for (final DocumentationProvider documentationProvider :
((CompositeDocumentationProvider) provider).getProviders()) {
if (documentationProvider instanceof ExternalDocumentationHandler
&& ((ExternalDocumentationHandler) documentationProvider)
.handleExternal(element, originalElement)) {
processed = true;
break;
}
}
}
if (!processed) {
final List<String> urls = provider.getUrlFor(element, originalElement);
assert urls != null : provider;
assert !urls.isEmpty() : provider;
ExternalJavaDocAction.showExternalJavadoc(urls);
}
}
}
public void update(AnActionEvent e) {
final Presentation presentation = e.getPresentation();
presentation.setEnabled(false);
if (myElement != null) {
final PsiElement element = myElement.getElement();
final DocumentationProvider provider = DocumentationManager.getProviderFromElement(element);
final PsiElement originalElement = DocumentationManager.getOriginalElement(element);
if (provider instanceof ExternalDocumentationProvider) {
presentation.setEnabled(
element != null
&& ((ExternalDocumentationProvider) provider)
.hasDocumentationFor(element, originalElement));
} else {
final List<String> urls = provider.getUrlFor(element, originalElement);
presentation.setEnabled(element != null && urls != null && !urls.isEmpty());
}
}
}