content/html/content/src/nsHTMLLabelElement.h
author David Anderson <danderson@mozilla.com>
Mon, 17 Oct 2011 11:52:12 -0700
changeset 79326 f93960a93ad97a56d308bd9ce25d97cbc175d524
parent 78608 8cfeba5239a9e4f20c462d6fb20421b4e4e7c735
parent 79324 ec7577dec4fceef0ac2717416d9c48289402d935
child 79972 97289207e9de085c9243e363a98ea4504e4a083e
permissions -rw-r--r--
Merge from mozilla-central.

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
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 * The Original Code is Mozilla Communicator client code.
 *
 * The Initial Developer of the Original Code is
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 *
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/**
 * Declaration of HTML <label> elements.
 */
#ifndef nsHTMLLabelElement_h
#define nsHTMLLabelElement_h

#include "nsGenericHTMLElement.h"
#include "nsIDOMHTMLLabelElement.h"

class nsHTMLLabelElement : public nsGenericHTMLFormElement,
                           public nsIDOMHTMLLabelElement
{
public:
  nsHTMLLabelElement(already_AddRefed<nsINodeInfo> aNodeInfo);
  virtual ~nsHTMLLabelElement();

  static nsHTMLLabelElement* FromContent(nsIContent* aPossibleLabel)
  {
    if (aPossibleLabel->IsHTML(nsGkAtoms::label)) {
      return static_cast<nsHTMLLabelElement*>(aPossibleLabel);
    }

    return nsnull;
  }

  // nsISupports
  NS_DECL_ISUPPORTS_INHERITED

  // nsIDOMNode
  NS_FORWARD_NSIDOMNODE(nsGenericHTMLFormElement::)

  // nsIDOMElement
  NS_FORWARD_NSIDOMELEMENT(nsGenericHTMLFormElement::)

  // nsIDOMHTMLLabelElement
  NS_DECL_NSIDOMHTMLLABELELEMENT

  // Forward nsIDOMHTMLElement -- We don't override Click()
  NS_FORWARD_NSIDOMHTMLELEMENT_NOFOCUSCLICK(nsGenericHTMLFormElement::)
  NS_IMETHOD Click() { 
    return nsGenericHTMLFormElement::Click(); 
  }
  NS_IMETHOD Focus();

  // nsIFormControl
  NS_IMETHOD_(PRUint32) GetType() const { return NS_FORM_LABEL; }
  NS_IMETHOD Reset();
  NS_IMETHOD SubmitNamesValues(nsFormSubmission* aFormSubmission);

  virtual bool IsDisabled() const { return false; }

  // nsIContent
  virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
                              nsIContent* aBindingParent,
                              bool aCompileEventHandlers);
  virtual void UnbindFromTree(bool aDeep = true,
                              bool aNullParent = true);

  virtual nsresult PostHandleEvent(nsEventChainPostVisitor& aVisitor);

  nsresult SetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
                   const nsAString& aValue, bool aNotify)
  {
    return SetAttr(aNameSpaceID, aName, nsnull, aValue, aNotify);
  }
  virtual nsresult SetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
                           nsIAtom* aPrefix, const nsAString& aValue,
                           bool aNotify);
  virtual nsresult UnsetAttr(PRInt32 aNameSpaceID, nsIAtom* aAttribute,
                             bool aNotify);
  virtual void PerformAccesskey(bool aKeyCausesActivation,
                                bool aIsTrustedEvent);
  virtual nsresult Clone(nsINodeInfo *aNodeInfo, nsINode **aResult) const;

  virtual nsXPCClassInfo* GetClassInfo();

  mozilla::dom::Element* GetLabeledElement();
protected:
  mozilla::dom::Element* GetFirstDescendantFormControl();

  // XXX It would be nice if we could use an event flag instead.
  bool mHandlingEvent;
};

#endif /* nsHTMLLabelElement_h */