public JsonRpcResult getMatchedStylesForNode()

in stetho/src/main/java/com/facebook/stetho/inspector/protocol/module/CSS.java [95:160]
55 lines of code
3 McCabe index (conditional complexity)

  public JsonRpcResult getMatchedStylesForNode(JsonRpcPeer peer, JSONObject params) {
    final GetMatchedStylesForNodeRequest request = mObjectMapper.convertValue(
        params,
        GetMatchedStylesForNodeRequest.class);

    final GetMatchedStylesForNodeResult result = new GetMatchedStylesForNodeResult();
    result.matchedCSSRules = new ArrayList<>();
    result.inherited = Collections.emptyList();
    result.pseudoElements = Collections.emptyList();

    mDocument.postAndWait(new Runnable() {
      @Override
      public void run() {
        final Object elementForNodeId = mDocument.getElementForNodeId(request.nodeId);

        if (elementForNodeId == null) {
          LogUtil.w("Failed to get style of an element that does not exist, nodeid=" +
              request.nodeId);
          return;
        }

        mDocument.getElementStyleRuleNames(elementForNodeId, new StyleRuleNameAccumulator() {
          @Override
          public void store(String ruleName, boolean editable) {
            final ArrayList<CSSProperty> properties = new ArrayList<>();

            final RuleMatch match = new RuleMatch();
            match.matchingSelectors = ListUtil.newImmutableList(0);

            final Selector selector = new Selector();
            selector.value = ruleName;

            final CSSRule rule = new CSSRule();
            rule.origin = Origin.REGULAR;
            rule.selectorList = new SelectorList();
            rule.selectorList.selectors = ListUtil.newImmutableList(selector);
            rule.style = new CSSStyle();
            rule.style.cssProperties = properties;
            rule.style.shorthandEntries = Collections.emptyList();

            if (editable) {
              rule.style.styleSheetId = String.format(
                  "%s.%s",
                  Integer.toString(request.nodeId),
                  selector.value);
            }

            mDocument.getElementStyles(elementForNodeId, ruleName, new StyleAccumulator() {
              @Override
              public void store(String name, String value, boolean isDefault) {
                final CSSProperty property = new CSSProperty();
                property.name = name;
                property.value = value;
                properties.add(property);
              }
            });

            match.rule = rule;
            result.matchedCSSRules.add(match);
          }
        });
      }
    });

    return result;
  }