private Activity getNextActivity(PlaceChangeEvent event) {
if (display == null) {
/*
* Display may have been nulled during PlaceChangeEvent dispatch. Don't
* bother the mapper, just return a null to ensure we shut down the
* current activity
*/
return null;
}
return mapper.getActivity(event.getNewPlace());
}
@Override
public void onPlaceChange(PlaceChangeEvent event) {
Place newPlace = event.getNewPlace();
// select the link corresponding to the place
for (Link link : links) {
if (link.isPlaceMatchLink(newPlace)) {
link.getLink().addStyleName(res.style().menuLinkSelected());
} else {
link.getLink().removeStyleName(res.style().menuLinkSelected());
}
}
// clear the source list because we are going to update it with the raw source file
// corresponding to the new
// place
sourceList.clear();
if (newPlace instanceof PlaceWithSources) {
exampleLink.setVisible(true);
sourceLink.setVisible(true);
PlaceWithSources<?> place = (PlaceWithSources<?>) newPlace;
sourceList.addItem("Example", place.getSourceFilename());
String[] rawFilenames = place.getRawSourceFilenames();
if (null != rawFilenames && rawFilenames.length > 0) {
// add the raw source files to the list and show the list
String text = sourceLink.getText();
if (!text.endsWith(":")) {
sourceLink.setText(text + ":");
}
sourceList.setVisible(true);
int indexRawSource = 0;
// starting at 1 because the first item is the example
int i = 1;
for (String filename : rawFilenames) {
sourceList.addItem(filename, filename);
if (place.isRawSource() && filename.equals(place.getFilename())) {
indexRawSource = i;
}
i++;
}
sourceList.setSelectedIndex(indexRawSource);
} else {
// no raw source file, we hide the list
String text = sourceLink.getText();
if (text.endsWith(":")) {
sourceLink.setText(text.substring(0, text.length() - 1));
}
sourceList.setVisible(false);
}
if (null == place.getFilename()) {
sourceLink.removeStyleName(res.style().sourceLinkSelected());
exampleLink.addStyleName(res.style().sourceLinkSelected());
container.getElement().getStyle().clearBackgroundColor();
container.getElement().getStyle().clearProperty("border");
} else {
exampleLink.removeStyleName(res.style().sourceLinkSelected());
sourceLink.addStyleName(res.style().sourceLinkSelected());
container.getElement().getStyle().setBackgroundColor("#eee");
container.getElement().getStyle().setProperty("border", "1px solid #c3c3c3");
}
} else {
// should not happen
exampleLink.setVisible(false);
sourceLink.setVisible(false);
sourceList.setVisible(false);
}
}
private PlaceChangeEvent setUpPlaceChangeEvent(Place newPlace) {
PlaceChangeEvent placeChangeEvent = mock(PlaceChangeEvent.class);
when(placeChangeEvent.getNewPlace()).thenReturn(newPlace);
return placeChangeEvent;
}