Examples with OrionOccurrenceOverlay org.eclipse.che.ide.editor.orion.client.jso.OrionOccurrenceOverlay used on opensource projects

Example 1 with OrionOccurrenceOverlay

use of org.eclipse.che.ide.editor.orion.client.jso.OrionOccurrenceOverlay in project che by eclipse.

the class OccurrencesProvider method computeOccurrences.

@Override
public JsPromise<OrionOccurrenceOverlay[]> computeOccurrences(OrionOccurrenceContextOverlay context) {
    final EditorPartPresenter activeEditor = editorAgent.getActiveEditor();
    if (activeEditor == null || !(activeEditor instanceof TextEditor)) {
        return null;
    }
    final TextEditor editor = ((TextEditor) activeEditor);
    if (!(editor.getConfiguration() instanceof LanguageServerEditorConfiguration)) {
        return null;
    }
    final LanguageServerEditorConfiguration configuration = (LanguageServerEditorConfiguration) editor.getConfiguration();
    if (configuration.getServerCapabilities().isDocumentHighlightProvider() == null || !configuration.getServerCapabilities().isDocumentHighlightProvider()) {
        return null;
    }
    final Document document = editor.getDocument();
    final TextDocumentPositionParamsDTO paramsDTO = helper.createTDPP(document, context.getStart());
    // FIXME: the result should be a Promise<List<DocumentHighlightDTO>> but the typefox API returns a single DocumentHighlightDTO
    Promise<DocumentHighlightDTO> promise = client.documentHighlight(paramsDTO);
    Promise<OrionOccurrenceOverlay[]> then = promise.then(new Function<DocumentHighlightDTO, OrionOccurrenceOverlay[]>() {

        @Override
        public OrionOccurrenceOverlay[] apply(DocumentHighlightDTO highlight) throws FunctionException {
            if (highlight == null) {
                return new OrionOccurrenceOverlay[0];
            }
            final OrionOccurrenceOverlay[] occurrences = new OrionOccurrenceOverlay[1];
            final OrionOccurrenceOverlay occurrence = OrionOccurrenceOverlay.create();
            // FIXME: this assumes that the language server will
            // compute a range based on 'line 1', ie, the whole
            // file content is on line 1 and the location to
            // highlight is given by the 'character' position
            // only.
            occurrence.setStart(highlight.getRange().getStart().getCharacter());
            occurrence.setEnd(highlight.getRange().getEnd().getCharacter() + 1);
            occurrences[0] = occurrence;
            return occurrences;
        }
    });
    return (JsPromise<OrionOccurrenceOverlay[]>) then;
}