Examples with NodeRef org.springframework.ide.vscode.commons.yaml.ast.NodeRef used on opensource projects

Example 1 with NodeRef

use of org.springframework.ide.vscode.commons.yaml.ast.NodeRef in project sts4 by spring-projects.

the class YamlHoverInfoProvider method getHoverInfo.

@Override
public Tuple2<Renderable, IRegion> getHoverInfo(IDocument doc, int offset) throws Exception {
    YamlFileAST ast = getAst(doc);
    if (ast != null) {
        IRegion region = getHoverRegion(ast, offset);
        if (region != null) {
            YamlDocument ymlDoc = new YamlDocument(doc, structureProvider);
            YamlAssistContext assistContext = assistContextProvider.getGlobalAssistContext(ymlDoc);
            if (assistContext != null) {
                List<NodeRef<?>> astPath = ast.findPath(offset);
                final YamlPath path = YamlPath.fromASTPath(astPath);
                if (path != null) {
                    YamlPath assistPath = path;
                    if (assistPath.pointsAtKey()) {
                        // When a path points at a key we must tramsform it to a
                        // 'value-terminating path'
                        // to be able to reuse the 'getHoverInfo' method on
                        // YamlAssistContext (as navigation
                        // into 'key' is not defined for YamlAssistContext.
                        String key = path.getLastSegment().toPropString();
                        assistPath = path.dropLast().append(YamlPathSegment.valueAt(key));
                    }
                    assistContext = assistPath.traverse(assistContext);
                    if (assistContext != null) {
                        Renderable info = path.pointsAtValue() ? assistContext.getValueHoverInfo(ymlDoc, new DocumentRegion(doc, region)) : assistContext.getHoverInfo();
                        // Fix for: PT 134914895. If assist context cannot provide an info, then don't return a Tuple.
                        if (info != null) {
                            return Tuples.of(info, region);
                        }
                    }
                }
            }
        }
    }
    return null;
}