C++ (Cpp) TraverseContent Exemples

Exemple #1

Fichier : nsHTMLMenuElement.cpp Projet : bebef1987/mozilla-central

void
nsHTMLMenuElement::TraverseContent(nsIContent* aContent,
                                   nsIMenuBuilder* aBuilder,
                                   PRInt8& aSeparator)
{
  nsCOMPtr<nsIContent> child;
  for (child = aContent->GetFirstChild(); child;
       child = child->GetNextSibling()) {
    nsGenericHTMLElement* element = nsGenericHTMLElement::FromContent(child);
    if (!element) {
      continue;
    }

    nsIAtom* tag = child->Tag();

    if (tag == nsGkAtoms::menuitem) {
      nsHTMLMenuItemElement* menuitem =
        nsHTMLMenuItemElement::FromContent(child);

      if (menuitem->IsHidden()) {
        continue;
      }

      nsAutoString label;
      menuitem->GetLabel(label);
      if (label.IsEmpty()) {
        continue;
      }

      nsAutoString icon;
      menuitem->GetIcon(icon);

      aBuilder->AddItemFor(menuitem, CanLoadIcon(child, icon));

      aSeparator = ST_FALSE;
    } else if (tag == nsGkAtoms::menu && !element->IsHidden()) {
      if (child->HasAttr(kNameSpaceID_None, nsGkAtoms::label)) {
        nsAutoString label;
        child->GetAttr(kNameSpaceID_None, nsGkAtoms::label, label);

        BuildSubmenu(label, child, aBuilder);

        aSeparator = ST_FALSE;
      } else {
        AddSeparator(aBuilder, aSeparator);

        TraverseContent(child, aBuilder, aSeparator);

        AddSeparator(aBuilder, aSeparator);
      }
    }
  }
}

Exemple #2

Fichier : HTMLMenuElement.cpp Projet : Jaxo/releases-mozilla-central

void
HTMLMenuElement::BuildSubmenu(const nsAString& aLabel,
                              nsIContent* aContent,
                              nsIMenuBuilder* aBuilder)
{
  aBuilder->OpenContainer(aLabel);

  int8_t separator = ST_TRUE_INIT;
  TraverseContent(aContent, aBuilder, separator);

  if (separator == ST_TRUE) {
    aBuilder->UndoAddSeparator();
  }

  aBuilder->CloseContainer();
}