ExtensionFunction::ResponseAction TabsUpdateFunction::Run()

in libcef/browser/extensions/api/tabs/tabs_api.cc [120:197]
51 lines of code
16 McCabe index (conditional complexity)

ExtensionFunction::ResponseAction TabsUpdateFunction::Run() {
  std::unique_ptr<tabs::Update::Params> params(
      tabs::Update::Params::Create(args()));
  EXTENSION_FUNCTION_VALIDATE(params.get());

  tab_id_ = params->tab_id ? *params->tab_id : -1;
  content::WebContents* web_contents = GetWebContents(tab_id_);
  if (!web_contents)
    return RespondNow(Error(std::move(error_)));

  web_contents_ = web_contents;

  // TODO(rafaelw): handle setting remaining tab properties:
  // -title
  // -favIconUrl

  // Navigate the tab to a new location if the url is different.
  if (params->update_properties.url.get()) {
    std::string updated_url = *params->update_properties.url;
    if (!UpdateURL(updated_url, tab_id_, &error_))
      return RespondNow(Error(std::move(error_)));
  }

  bool active = false;
  // TODO(rafaelw): Setting |active| from js doesn't make much sense.
  // Move tab selection management up to window.
  if (params->update_properties.selected.get())
    active = *params->update_properties.selected;

  // The 'active' property has replaced 'selected'.
  if (params->update_properties.active.get())
    active = *params->update_properties.active;

  if (active) {
    // TODO: Activate the tab at |tab_id_|.
    NOTIMPLEMENTED();
    return RespondNow(Error(tabs_constants::kTabStripNotEditableError));
  }

  if (params->update_properties.highlighted.get() &&
      *params->update_properties.highlighted) {
    // TODO: Highlight the tab at |tab_id_|.
    NOTIMPLEMENTED();
    return RespondNow(Error(tabs_constants::kTabStripNotEditableError));
  }

  if (params->update_properties.pinned.get() &&
      *params->update_properties.pinned) {
    // TODO: Pin the tab at |tab_id_|.
    NOTIMPLEMENTED();
    return RespondNow(Error(tabs_constants::kTabStripNotEditableError));
  }

  if (params->update_properties.muted.get()) {
    // TODO: Mute/unmute the tab at |tab_id_|.
    NOTIMPLEMENTED();
    return RespondNow(Error(ErrorUtils::FormatErrorMessage(
        tabs_constants::kCannotUpdateMuteCaptured,
        base::NumberToString(tab_id_))));
  }

  if (params->update_properties.opener_tab_id.get()) {
    int opener_id = *params->update_properties.opener_tab_id;
    if (opener_id == tab_id_)
      return RespondNow(Error("Cannot set a tab's opener to itself."));

    // TODO: Set the opener for the tab at |tab_id_|.
    NOTIMPLEMENTED();
    return RespondNow(Error(tabs_constants::kTabStripNotEditableError));
  }

  if (params->update_properties.auto_discardable.get()) {
    // TODO: Set auto-discardable state for the tab at |tab_id_|.
    NOTIMPLEMENTED();
  }

  return RespondNow(GetResult());
}