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Public Types | Public Member Functions | Static Public Member Functions | Public Attributes | Static Public Attributes | Protected Types | Protected Member Functions | Protected Attributes
nsXMLElement Class Reference

#include <nsXMLElement.h>

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List of all members.

Public Types

enum  {
  eTEXT = 0x00000001, eELEMENT = 0x00000002, eHTML = 0x00000004, eHTML_FORM_CONTROL = 0x00000008,
  eXUL = 0x00000010, ePROCESSING_INSTRUCTION = 0x00000020, eSVG = 0x00000040, eCOMMENT = 0x00000080
}
 Bit-flags to pass (or'ed together) to IsContentOfType() More...
enum  ETabFocusType { eTabFocus_formElementsMask = (1<<1), eTabFocus_linksMask = (1<<2), eTabFocus_any = 1 + (1<<1) + (1<<2) }

Public Member Functions

 nsXMLElement (nsINodeInfo *aNodeInfo)
virtual ~nsXMLElement ()
NS_DECL_ISUPPORTS_INHERITED
NS_IMETHOD 
MaybeTriggerAutoLink (nsIDocShell *aShell)
 Give this element a chance to fire links that should be fired automatically when loaded.
nsresult SetAttr (PRInt32 aNameSpaceID, nsIAtom *aName, const nsAString &aValue, PRBool aNotify)
 Set attribute values.
virtual nsresult SetAttr (PRInt32 aNameSpaceID, nsIAtom *aName, nsIAtom *aPrefix, const nsAString &aValue, PRBool aNotify)
 Set attribute values.
virtual nsresult HandleDOMEvent (nsPresContext *aPresContext, nsEvent *aEvent, nsIDOMEvent **aDOMEvent, PRUint32 aFlags, nsEventStatus *aEventStatus)
 Handle a DOM event for this piece of content.
virtual PRBool IsFocusable (PRInt32 *aTabIndex=nsnull)
 Check if this content is focusable and in the current tab order.
NS_DECL_ISUPPORTS nsresult PostQueryInterface (REFNSIID aIID, void **aInstancePtr)
 Called during QueryInterface to give the binding manager a chance to get an interface for this element.
virtual nsIDOMGCParticipantGetSCCIndex ()
 During the Mark phase of the GC, we need to mark all of the preserved wrappers that are reachable via DOM APIs.
virtual void AppendReachableList (nsCOMArray< nsIDOMGCParticipant > &aArray)
 Append the list of nsIDOMGCPartipants reachable from this one via C++ getters exposed to script that return a different result from |GetSCCIndex|.
nsIDocumentGetDocument () const
 DEPRECATED - Use GetCurrentDoc or GetOwnerDoc.
virtual nsresult BindToTree (nsIDocument *aDocument, nsIContent *aParent, nsIContent *aBindingParent, PRBool aCompileEventHandlers)
 Bind this content node to a tree.
virtual void UnbindFromTree (PRBool aDeep=PR_TRUE, PRBool aNullParent=PR_TRUE)
 Unbind this content node from a tree.
PRBool IsInDoc () const
 Returns true if the content has an ancestor that is a document.
nsIDocumentGetOwnerDoc () const
 Get the ownerDocument for this content.
virtual PRBool IsNativeAnonymous () const
 Get whether this content is C++-generated anonymous content.
virtual void SetNativeAnonymous (PRBool aAnonymous)
 Set whether this content is anonymous.
virtual PRInt32 GetNameSpaceID () const
 Get the namespace that this element's tag is defined in.
virtual nsIAtomTag () const
 Get the tag for this element.
virtual nsINodeInfoGetNodeInfo () const
 Get the NodeInfo for this element.
virtual PRUint32 GetChildCount () const
 Get the number of children.
virtual nsIContentGetChildAt (PRUint32 aIndex) const
 Get a child by index.
virtual PRInt32 IndexOf (nsIContent *aPossibleChild) const
 Get the index of a child within this content.
virtual nsresult InsertChildAt (nsIContent *aKid, PRUint32 aIndex, PRBool aNotify)
 Insert a content node at a particular index.
virtual nsresult AppendChildTo (nsIContent *aKid, PRBool aNotify)
 Append a content node to the end of the child list.
virtual nsresult RemoveChildAt (PRUint32 aIndex, PRBool aNotify)
 Remove a child from this content node.
virtual nsIAtomGetIDAttributeName () const
 Returns an atom holding the name of the attribute of type ID on this content node (if applicable).
virtual nsIAtomGetClassAttributeName () const
 Returns an atom holding the name of the "class" attribute on this content node (if applicable).
virtual already_AddRefed
< nsINodeInfo
GetExistingAttrNameFromQName (const nsAString &aStr) const
 Normalizes an attribute name and returns it as a nodeinfo if an attribute with that name exists.
virtual nsresult GetAttr (PRInt32 aNameSpaceID, nsIAtom *aName, nsAString &aResult) const
 Get the current value of the attribute.
virtual PRBool HasAttr (PRInt32 aNameSpaceID, nsIAtom *aName) const
 Determine if an attribute has been set (empty string or otherwise).
virtual nsresult UnsetAttr (PRInt32 aNameSpaceID, nsIAtom *aAttribute, PRBool aNotify)
 Remove an attribute so that it is no longer explicitly specified.
virtual nsresult GetAttrNameAt (PRUint32 aIndex, PRInt32 *aNameSpaceID, nsIAtom **aName, nsIAtom **aPrefix) const
 Get the namespace / name / prefix of a given attribute.
virtual PRUint32 GetAttrCount () const
 Get the number of all specified attributes.
virtual nsresult RangeAdd (nsIDOMRange *aRange)
 Inform content of range ownership changes.
virtual void RangeRemove (nsIDOMRange *aRange)
 Inform content that it no longer owns either range endpoint.
virtual const nsVoidArrayGetRangeList () const
 Get the list of ranges that have either endpoint in this content item.
virtual PRUint32 ContentID () const
 Get a unique ID for this piece of content.
virtual void SetContentID (PRUint32 aID)
 Set the unique content ID for this content.
virtual void SetFocus (nsPresContext *aContext)
 Set the focus on this content.
virtual nsIContentGetBindingParent () const
 Gets content node with the binding responsible for our construction (and existence).
virtual PRBool IsContentOfType (PRUint32 aFlags) const
 API for doing a quick check if a content object is of a given type, such as HTML, XUL, Text, ...
virtual nsresult GetListenerManager (nsIEventListenerManager **aResult)
 Get the event listener manager, the guy you talk to to register for events on this element.
virtual already_AddRefed< nsIURIGetBaseURI () const
 Get the base URI for any relative URIs within this piece of content.
virtual voidGetProperty (nsIAtom *aPropertyName, nsresult *aStatus=nsnull) const
virtual nsresult SetProperty (nsIAtom *aPropertyName, void *aValue, NSPropertyDtorFunc aDtor)
virtual nsresult DeleteProperty (nsIAtom *aPropertyName)
virtual voidUnsetProperty (nsIAtom *aPropertyName, nsresult *aStatus=nsnull)
virtual void SetMayHaveFrame (PRBool aMayHaveFrame)
 Call to let the content node know that it may now have a frame.
virtual PRBool MayHaveFrame () const
 Returns PR_TRUE if there is a chance that the content node has a frame, PR_FALSE otherwise.
virtual nsIAtomGetID () const
virtual const nsAttrValueGetClasses () const
 NS_IMETHOD_ (PRBool) HasClass(nsIAtom *aClass
 NS_IMETHOD_ (PRBool) IsAttributeMapped(const nsIAtom *aAttribute) const =0
 Is the attribute named stored in the mapped attributes?
NS_IMETHOD WalkContentStyleRules (nsRuleWalker *aRuleWalker)
virtual nsICSSStyleRuleGetInlineStyleRule ()
NS_IMETHOD SetInlineStyleRule (nsICSSStyleRule *aStyleRule, PRBool aNotify)
 IsAttributeMapped (const nsIAtom *aAttribute) const
virtual nsChangeHint GetAttributeChangeHint (const nsIAtom *aAttribute, PRInt32 aModType) const
 Get a hint that tells the style system what to do when an attribute on this node changes, if something needs to happen in response to the change other than the result of what is mapped into style data via any type of style rule.
NS_IMETHOD GetNodeName (nsAString &aNodeName)
NS_IMETHOD GetLocalName (nsAString &aLocalName)
NS_IMETHOD GetNodeValue (nsAString &aNodeValue)
NS_IMETHOD SetNodeValue (const nsAString &aNodeValue)
NS_IMETHOD GetNodeType (PRUint16 *aNodeType)
NS_IMETHOD GetParentNode (nsIDOMNode **aParentNode)
NS_IMETHOD GetAttributes (nsIDOMNamedNodeMap **aAttributes)
NS_IMETHOD GetPreviousSibling (nsIDOMNode **aPreviousSibling)
NS_IMETHOD GetNextSibling (nsIDOMNode **aNextSibling)
NS_IMETHOD GetOwnerDocument (nsIDOMDocument **aOwnerDocument)
NS_IMETHOD GetNamespaceURI (nsAString &aNamespaceURI)
NS_IMETHOD GetPrefix (nsAString &aPrefix)
NS_IMETHOD SetPrefix (const nsAString &aPrefix)
NS_IMETHOD Normalize ()
NS_IMETHOD IsSupported (const nsAString &aFeature, const nsAString &aVersion, PRBool *aReturn)
NS_IMETHOD HasAttributes (PRBool *aHasAttributes)
NS_IMETHOD GetChildNodes (nsIDOMNodeList **aChildNodes)
NS_IMETHOD HasChildNodes (PRBool *aHasChildNodes)
NS_IMETHOD GetFirstChild (nsIDOMNode **aFirstChild)
NS_IMETHOD GetLastChild (nsIDOMNode **aLastChild)
NS_IMETHOD InsertBefore (nsIDOMNode *aNewChild, nsIDOMNode *aRefChild, nsIDOMNode **aReturn)
NS_IMETHOD ReplaceChild (nsIDOMNode *aNewChild, nsIDOMNode *aOldChild, nsIDOMNode **aReturn)
NS_IMETHOD RemoveChild (nsIDOMNode *aOldChild, nsIDOMNode **aReturn)
NS_IMETHOD AppendChild (nsIDOMNode *aNewChild, nsIDOMNode **aReturn)
NS_IMETHOD GetTagName (nsAString &aTagName)
NS_IMETHOD GetAttribute (const nsAString &aName, nsAString &aReturn)
NS_IMETHOD SetAttribute (const nsAString &aName, const nsAString &aValue)
NS_IMETHOD RemoveAttribute (const nsAString &aName)
NS_IMETHOD GetAttributeNode (const nsAString &aName, nsIDOMAttr **aReturn)
NS_IMETHOD SetAttributeNode (nsIDOMAttr *aNewAttr, nsIDOMAttr **aReturn)
NS_IMETHOD RemoveAttributeNode (nsIDOMAttr *aOldAttr, nsIDOMAttr **aReturn)
NS_IMETHOD GetElementsByTagName (const nsAString &aTagname, nsIDOMNodeList **aReturn)
NS_IMETHOD GetAttributeNS (const nsAString &aNamespaceURI, const nsAString &aLocalName, nsAString &aReturn)
NS_IMETHOD SetAttributeNS (const nsAString &aNamespaceURI, const nsAString &aQualifiedName, const nsAString &aValue)
NS_IMETHOD RemoveAttributeNS (const nsAString &aNamespaceURI, const nsAString &aLocalName)
NS_IMETHOD GetAttributeNodeNS (const nsAString &aNamespaceURI, const nsAString &aLocalName, nsIDOMAttr **aReturn)
NS_IMETHOD SetAttributeNodeNS (nsIDOMAttr *aNewAttr, nsIDOMAttr **aReturn)
NS_IMETHOD GetElementsByTagNameNS (const nsAString &aNamespaceURI, const nsAString &aLocalName, nsIDOMNodeList **aReturn)
NS_IMETHOD HasAttribute (const nsAString &aName, PRBool *aReturn)
NS_IMETHOD HasAttributeNS (const nsAString &aNamespaceURI, const nsAString &aLocalName, PRBool *aReturn)
nsresult AddScriptEventListener (nsIAtom *aAttribute, const nsAString &aValue)
 Add a script event listener with the given attr name (like onclick) and with the value as JS.
nsresult TriggerLink (nsPresContext *aPresContext, nsLinkVerb aVerb, nsIURI *aLinkURI, const nsAFlatString &aTargetSpec, PRBool aClick, PRBool aIsUserTriggered)
 Trigger a link with uri aLinkURI.
nsresult LeaveLink (nsPresContext *aPresContext)
 Do whatever needs to be done when the mouse leaves a link.
nsresult JoinTextNodes (nsIContent *aFirst, nsIContent *aSecond)
 Take two text nodes and append the second to the first.
nsIDocumentGetCurrentDoc () const
 Get the document that this content is currently in, if any.
nsIContentGetParent () const
 Get the parent content for this content.
virtual void RemoveFocus (nsPresContext *aPresContext)
 Remove the focus on this content.
virtual void DoneCreatingElement ()
 This method is called when the parser finishes creating the element.
virtual void BeginAddingChildren ()
 This method is called when the parser begins creating the element's children, if any are present.
virtual void DoneAddingChildren ()
 This method is called when the parser finishes creating the element's children, if any are present.
virtual PRBool IsDoneAddingChildren ()
 For HTML textarea, select, applet, and object elements, returns PR_TRUE if all children have been added OR if the element was not created by the parser.
virtual PRInt32 IntrinsicState () const
 Method to get the intrinsic content state of this content node.
DOMString getAttribute (in DOMString name)
void setAttribute (in DOMString name, in DOMString value) raises (DOMException)
void removeAttribute (in DOMString name) raises (DOMException)
nsIDOMAttr getAttributeNode (in DOMString name)
nsIDOMAttr setAttributeNode (in nsIDOMAttr newAttr) raises (DOMException)
nsIDOMAttr removeAttributeNode (in nsIDOMAttr oldAttr) raises (DOMException)
nsIDOMNodeList getElementsByTagName (in DOMString name)
DOMString getAttributeNS (in DOMString namespaceURI, in DOMString localName)
void setAttributeNS (in DOMString namespaceURI, in DOMString qualifiedName, in DOMString value) raises (DOMException)
void removeAttributeNS (in DOMString namespaceURI, in DOMString localName) raises (DOMException)
nsIDOMAttr getAttributeNodeNS (in DOMString namespaceURI, in DOMString localName)
nsIDOMAttr setAttributeNodeNS (in nsIDOMAttr newAttr) raises (DOMException)
nsIDOMNodeList getElementsByTagNameNS (in DOMString namespaceURI, in DOMString localName)
boolean hasAttribute (in DOMString name)
boolean hasAttributeNS (in DOMString namespaceURI, in DOMString localName)
nsIDOMNode insertBefore (in nsIDOMNode newChild, in nsIDOMNode refChild) raises (DOMException)
nsIDOMNode replaceChild (in nsIDOMNode newChild, in nsIDOMNode oldChild) raises (DOMException)
nsIDOMNode removeChild (in nsIDOMNode oldChild) raises (DOMException)
nsIDOMNode appendChild (in nsIDOMNode newChild) raises (DOMException)
boolean hasChildNodes ()
nsIDOMNode cloneNode (in boolean deep)
void normalize ()
boolean isSupported (in DOMString feature, in DOMString version)
boolean hasAttributes ()

Static Public Member Functions

static void Shutdown ()
 Free globals, to be called from module destructor.
static PRBool FindAttributeDependence (const nsIAtom *aAttribute, const MappedAttributeEntry *const aMaps[], PRUint32 aMapCount)
 A common method where you can just pass in a list of maps to check for attribute dependence.
static void SetDocumentInChildrenOf (nsIContent *aContent, nsIDocument *aDocument, PRBool aCompileEventHandlers)
 Set .document in the immediate children of said content (but not in content itself).
static nsresult InternalIsSupported (nsISupports *aObject, const nsAString &aFeature, const nsAString &aVersion, PRBool *aReturn)
 Check whether a spec feature/version is supported.
static nsresult InternalGetFeature (nsISupports *aObject, const nsAString &aFeature, const nsAString &aVersion, nsISupports **aReturn)
static already_AddRefed
< nsIDOMNSFeatureFactory
GetDOMFeatureFactory (const nsAString &aFeature, const nsAString &aVersion)
static PRBool HasMutationListeners (nsIContent *aContent, PRUint32 aType)
 Quick helper to determine whether there are any mutation listeners of a given type that apply to this content (are at or above it).
static PRBool ShouldFocus (nsIContent *aContent)
static nsresult doReplaceOrInsertBefore (PRBool aReplace, nsIDOMNode *aNewChild, nsIDOMNode *aRefChild, nsIContent *aParent, nsIDocument *aDocument, nsAttrAndChildArray &aChildArray, nsIDOMNode **aReturn)
 Actual implementation of the DOM InsertBefore and ReplaceChild methods.
static nsresult InitHashes ()

Public Attributes

PRBool aCaseSensitive const
readonly attribute DOMString tagName
const unsigned short ELEMENT_NODE = 1
const unsigned short ATTRIBUTE_NODE = 2
const unsigned short TEXT_NODE = 3
const unsigned short CDATA_SECTION_NODE = 4
const unsigned short ENTITY_REFERENCE_NODE = 5
const unsigned short ENTITY_NODE = 6
const unsigned short PROCESSING_INSTRUCTION_NODE = 7
const unsigned short COMMENT_NODE = 8
const unsigned short DOCUMENT_NODE = 9
const unsigned short DOCUMENT_TYPE_NODE = 10
const unsigned short DOCUMENT_FRAGMENT_NODE = 11
const unsigned short NOTATION_NODE = 12
readonly attribute DOMString nodeName
attribute DOMString nodeValue
readonly attribute unsigned short nodeType
readonly attribute nsIDOMNode parentNode
readonly attribute nsIDOMNodeList childNodes
readonly attribute nsIDOMNode firstChild
readonly attribute nsIDOMNode lastChild
readonly attribute nsIDOMNode previousSibling
readonly attribute nsIDOMNode nextSibling
readonly attribute
nsIDOMNamedNodeMap 
attributes
readonly attribute nsIDOMDocument ownerDocument
readonly attribute DOMString namespaceURI
attribute DOMString prefix
readonly attribute DOMString localName

Static Public Attributes

static PLDHashTable sEventListenerManagersHash
static PLDHashTable sRangeListsHash
static PRInt32 sTabFocusModel = eTabFocus_any
static PRBool sTabFocusModelAppliesToXUL = PR_FALSE

Protected Types

enum  { kParentBitMask = 0x3 }
typedef PRWord PtrBits

Protected Member Functions

nsresult CopyInnerTo (nsGenericElement *aDest, PRBool aDeep)
 Copy attributes and children from another content object.
virtual const nsAttrNameInternalGetExistingAttrNameFromQName (const nsAString &aStr) const
 Internal hook for converting an attribute name-string to an atomized name.
PRBool HasDOMSlots () const
nsDOMSlotsGetDOMSlots ()
nsDOMSlotsGetExistingDOMSlots () const
PtrBits GetFlags () const
void SetFlags (PtrBits aFlagsToSet)
void UnsetFlags (PtrBits aFlagsToUnset)
PRBool HasRangeList () const
PRBool HasEventListenerManager () const
PRBool HasProperties () const
void GetContentsAsText (nsAString &aText)
 GetContentsAsText will take all the textnodes that are children of |this| and concatenate the text in them into aText.
PRBool IsAnonymousForEvents () const
 Returns PR_TRUE if this content is anonymous for event handling.

Protected Attributes

PRBool mIsLink
nsCOMPtr< nsINodeInfomNodeInfo
 Information about this type of node.
PtrBits mFlagsOrSlots
 Used for either storing flags for this element or a pointer to this elements nsDOMSlots.
nsAttrAndChildArray mAttrsAndChildren
 Array containing all attributes and children for this element.
PtrBits mParentPtrBits

Detailed Description

Definition at line 53 of file nsXMLElement.h.


Member Typedef Documentation

typedef PRWord nsIContent::PtrBits [protected, inherited]

Reimplemented in nsGenericDOMDataNode.

Definition at line 726 of file nsIContent.h.


Member Enumeration Documentation

anonymous enum [inherited]

Bit-flags to pass (or'ed together) to IsContentOfType()

Enumerator:
eTEXT 

text elements

eELEMENT 

dom elements

eHTML 

html elements

eHTML_FORM_CONTROL 

form controls

eXUL 

XUL elements.

ePROCESSING_INSTRUCTION 

xml processing instructions

eSVG 

svg elements

eCOMMENT 

comment nodes

Definition at line 524 of file nsIContent.h.

       {
    eTEXT                = 0x00000001,
    eELEMENT             = 0x00000002,
    eHTML                = 0x00000004,
    eHTML_FORM_CONTROL   = 0x00000008,
    eXUL                 = 0x00000010,
    ePROCESSING_INSTRUCTION = 0x00000020,
    eSVG                 = 0x00000040,
    eCOMMENT             = 0x00000080
  };
anonymous enum [protected, inherited]
Enumerator:
kParentBitMask 

Definition at line 729 of file nsIContent.h.

{ kParentBitMask = 0x3 };
enum nsIContent::ETabFocusType [inherited]
Enumerator:
eTabFocus_formElementsMask 
eTabFocus_linksMask 
eTabFocus_any 

Definition at line 711 of file nsIContent.h.

                     {
  //eTabFocus_textControlsMask = (1<<0),  // unused - textboxes always tabbable
    eTabFocus_formElementsMask = (1<<1),  // non-text form elements
    eTabFocus_linksMask = (1<<2),         // links
    eTabFocus_any = 1 + (1<<1) + (1<<2)   // everything that can be focused
  };

Constructor & Destructor Documentation

Definition at line 82 of file nsXMLElement.cpp.

  : nsGenericElement(aNodeInfo),
    mIsLink(PR_FALSE)
{
}

Definition at line 88 of file nsXMLElement.cpp.

{
}

Member Function Documentation

nsresult nsGenericElement::AddScriptEventListener ( nsIAtom aAttribute,
const nsAString &  aValue 
) [inherited]

Add a script event listener with the given attr name (like onclick) and with the value as JS.

Parameters:
aAttributethe event listener name
aValuethe JS to attach

Definition at line 3788 of file nsGenericElement.cpp.

{
  nsresult rv = NS_OK;
  nsISupports *target = NS_STATIC_CAST(nsIContent *, this);
  PRBool defer = PR_TRUE;

  nsCOMPtr<nsIEventListenerManager> manager;

  // Attributes on the body and frameset tags get set on the global object
  if (mNodeInfo->Equals(nsHTMLAtoms::body) ||
      mNodeInfo->Equals(nsHTMLAtoms::frameset)) {
    nsIScriptGlobalObject *sgo;

    // If we have a document, and it has a script global, add the
    // event listener on the global. If not, proceed as normal.
    // XXXbz should we instead use GetCurrentDoc() here, override
    // BindToTree for those classes and munge event listeners there?
    nsIDocument *document = GetOwnerDoc();
    nsCOMPtr<nsPIDOMWindow> win;
    if (document && (sgo = document->GetScriptGlobalObject()) &&
        (win = do_QueryInterface(sgo)) && win->IsInnerWindow()) {
      nsCOMPtr<nsIDOMEventReceiver> receiver(do_QueryInterface(sgo));
      NS_ENSURE_TRUE(receiver, NS_ERROR_FAILURE);

      receiver->GetListenerManager(getter_AddRefs(manager));

      target = sgo;
      defer = PR_FALSE;
    }
  } else {
    GetListenerManager(getter_AddRefs(manager));
  }

  if (manager) {
    nsIDocument *ownerDoc = GetOwnerDoc();

    rv =
      manager->AddScriptEventListener(target, aAttribute, aValue, defer,
                                      !nsContentUtils::IsChromeDoc(ownerDoc));
  }

  return rv;
}

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nsIDOMNode nsIDOMNode::appendChild ( in nsIDOMNode  newChild) raises (DOMException) [inherited]
NS_IMETHOD nsGenericElement::AppendChild ( nsIDOMNode aNewChild,
nsIDOMNode **  aReturn 
) [inline, inherited]

Reimplemented in nsDocumentFragment.

Definition at line 585 of file nsGenericElement.h.

  {
    return InsertBefore(aNewChild, nsnull, aReturn);
  }

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nsresult nsGenericElement::AppendChildTo ( nsIContent aKid,
PRBool  aNotify 
) [virtual, inherited]

Append a content node to the end of the child list.

Parameters:
aKidthe content to append
aNotifywhether to notify the document and appropriate mutation event listeners that the replace has occurred

Implements nsIContent.

Reimplemented in nsXULElement, nsHTMLScriptElement, nsHTMLSelectElement, nsHTMLTextAreaElement, nsSVGScriptElement, nsXTFElementWrapper, nsHTMLOptGroupElement, nsHTMLStyleElement, and nsSVGStyleElement.

Definition at line 2866 of file nsGenericElement.cpp.

{
  NS_PRECONDITION(aKid && this != aKid, "null ptr");
  nsIDocument *document = GetCurrentDoc();
  mozAutoDocUpdate updateBatch(document, UPDATE_CONTENT_MODEL, aNotify);
  
  nsresult rv = mAttrsAndChildren.AppendChild(aKid);
  NS_ENSURE_SUCCESS(rv, rv);
  
  rv = aKid->BindToTree(document, this, nsnull, PR_TRUE);
  if (NS_FAILED(rv)) {
    mAttrsAndChildren.RemoveChildAt(GetChildCount() - 1);
    aKid->UnbindFromTree();
    return rv;
  }
  // ranges don't need adjustment since new child is at end of list

  // The kid may have removed us from the document, so recheck that we're still
  // in the document before proceeding.  Also, the kid may have just removed
  // itself, in which case we don't really want to fire ContentAppended or a
  // mutation event.
  // XXXbz What if the kid just moved us in the document?  Scripts suck.  We
  // really need to stop running them while we're in the middle of modifying
  // the DOM....
  if (aNotify && document && document == GetCurrentDoc() &&
      aKid->GetParent() == this) {
    document->ContentAppended(this, GetChildCount() - 1);
    
    if (HasMutationListeners(this, NS_EVENT_BITS_MUTATION_NODEINSERTED)) {
      nsMutationEvent mutation(PR_TRUE, NS_MUTATION_NODEINSERTED, aKid);
      mutation.mRelatedNode = do_QueryInterface(this);
      
      nsEventStatus status = nsEventStatus_eIgnore;
      aKid->HandleDOMEvent(nsnull, &mutation, nsnull, NS_EVENT_FLAG_INIT, 
                           &status);
    }
  }

  return NS_OK;
}

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Append the list of nsIDOMGCPartipants reachable from this one via C++ getters exposed to script that return a different result from |GetSCCIndex|.

The caller is responsible for taking the transitive closure of |AppendReachableList|.

This will only be called on objects that are returned by GetSCCIndex.

null pointers may be appended; they will be ignored by the caller.

Implements nsIDOMGCParticipant.

Definition at line 1045 of file nsGenericElement.cpp.

{
  NS_ASSERTION(GetCurrentDoc() == nsnull,
               "shouldn't be an SCC index if we're in a doc");

  // This node is the root of a subtree that's been removed from the
  // document (since AppendReachableList is only called on SCC index
  // nodes).  The document is reachable from it (through
  // .ownerDocument), but it's not reachable from the document.
  nsCOMPtr<nsIDOMGCParticipant> participant = do_QueryInterface(GetOwnerDoc());
  aArray.AppendObject(participant);
}

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virtual void nsIContent::BeginAddingChildren ( ) [inline, virtual, inherited]

This method is called when the parser begins creating the element's children, if any are present.

This is only called for XTF elements currently.

Reimplemented in nsXTFElementWrapper.

Definition at line 626 of file nsIContent.h.

  {
  }
nsresult nsGenericElement::BindToTree ( nsIDocument aDocument,
nsIContent aParent,
nsIContent aBindingParent,
PRBool  aCompileEventHandlers 
) [virtual, inherited]

Bind this content node to a tree.

If this method throws, the caller must call UnbindFromTree() on the node. In the typical case of a node being appended to a parent, this will be called after the node has been added to the parent's child list and before nsIDocumentObserver notifications for the addition are dispatched.

Parameters:
aDocumentThe new document for the content node. Must match the current document of aParent, if aParent is not null. May not be null if aParent is null.
aParentThe new parent for the content node. May be null if the node is being bound as a direct child of the document.
aBindingParentThe new binding parent for the content node. This is allowed to be null. In that case, the binding parent of aParent, if any, will be used.
aCompileEventHandlerswhether to initialize the event handlers in the document (used by nsXULElement)
Note:
either aDocument or aParent must be non-null. If both are null, this method will crash.
This method must not be called by consumers of nsIContent on a node that is already bound to a tree. Call UnbindFromTree first.
This method will handle rebinding descendants appropriately (eg changing their binding parent as needed).
This method does not add the content node to aParent's child list
Exceptions:
NS_ERROR_OUT_OF_MEMORYif that happens

Implements nsIContent.

Reimplemented in nsGenericHTMLFrameElement, nsGenericHTMLFormElement, nsXULElement, nsHTMLScriptElement, nsHTMLInputElement, nsGenericHTMLElement, nsHTMLFormElement, nsHTMLImageElement, nsHTMLAnchorElement, nsSVGScriptElement, nsHTMLAreaElement, nsHTMLLinkElement, nsHTMLLabelElement, nsHTMLLegendElement, nsHTMLStyleElement, nsXTFElementWrapper, nsSVGElement, nsSVGStyleElement, and nsHTMLMapElement.

Definition at line 1867 of file nsGenericElement.cpp.

{
  NS_PRECONDITION(aParent || aDocument, "Must have document if no parent!");
  // XXXbz XUL elements are confused about their current doc when they're
  // cloned, so we don't assert if aParent is a XUL element and aDocument is
  // null, even if aParent->GetCurrentDoc() is non-null
  //  NS_PRECONDITION(!aParent || aDocument == aParent->GetCurrentDoc(),
  //                  "aDocument must be current doc of aParent");
  NS_PRECONDITION(!aParent ||
                  (aParent->IsContentOfType(eXUL) && aDocument == nsnull) ||
                  aDocument == aParent->GetCurrentDoc(),
                  "aDocument must be current doc of aParent");
  NS_PRECONDITION(!GetCurrentDoc(), "Already have a document.  Unbind first!");
  // Note that as we recurse into the kids, they'll have a non-null parent.  So
  // only assert if our parent is _changing_ while we have a parent.
  NS_PRECONDITION(!GetParent() || aParent == GetParent(),
                  "Already have a parent.  Unbind first!");
  NS_PRECONDITION(!GetBindingParent() ||
                  aBindingParent == GetBindingParent() ||
                  (!aBindingParent && aParent &&
                   aParent->GetBindingParent() == GetBindingParent()),
                  "Already have a binding parent.  Unbind first!");
  
  if (!aBindingParent && aParent) {
    aBindingParent = aParent->GetBindingParent();
  }

  // First set the binding parent
  if (aBindingParent) {
    nsDOMSlots *slots = GetDOMSlots();

    if (!slots) {
      return NS_ERROR_OUT_OF_MEMORY;
    }

    slots->mBindingParent = aBindingParent; // Weak, so no addref happens.
  }

  // Now set the parent; make sure to preserve the bits we have stashed there
  // Note that checking whether aParent == GetParent() is probably not worth it
  // here.
  PtrBits new_bits = NS_REINTERPRET_CAST(PtrBits, aParent);
  new_bits |= mParentPtrBits & nsIContent::kParentBitMask;
  mParentPtrBits = new_bits;

  nsresult rv;
  
  nsIDocument *oldOwnerDocument = GetOwnerDoc();
  nsIDocument *newOwnerDocument;
  nsNodeInfoManager* nodeInfoManager;

  // XXXbz sXBL/XBL2 issue!

  // Finally, set the document
  if (aDocument) {
    // Notify XBL- & nsIAnonymousContentCreator-generated
    // anonymous content that the document is changing.
    // XXXbz ordering issues here?  Probably not, since ChangeDocumentFor is
    // just pretty broken anyway....  Need to get it working.
    // XXXbz XBL doesn't handle this (asserts), and we don't really want
    // to be doing this during parsing anyway... sort this out.    
    //    aDocument->BindingManager()->ChangeDocumentFor(this, nsnull,
    //                                                   aDocument);

    // Being added to a document.
    mParentPtrBits |= PARENT_BIT_INDOCUMENT;

    newOwnerDocument = aDocument;
    nodeInfoManager = newOwnerDocument->NodeInfoManager();
  } else {
    newOwnerDocument = aParent->GetOwnerDoc();
    nodeInfoManager = aParent->GetNodeInfo()->NodeInfoManager();
  }

  // Handle a change in our owner document.

  if (oldOwnerDocument && oldOwnerDocument != newOwnerDocument) {
    // Remove all properties.
    oldOwnerDocument->PropertyTable()->DeleteAllPropertiesFor(this);
    nsCOMPtr<nsIDOMElement> domElement = do_QueryInterface(this);
    if (domElement) {
      nsCOMPtr<nsIDOMNSDocument> nsDoc = do_QueryInterface(oldOwnerDocument);
      if (nsDoc) {
        nsDoc->SetBoxObjectFor(domElement, nsnull);
      }
    }
  }

  if (mNodeInfo->NodeInfoManager() != nodeInfoManager) {
    nsCOMPtr<nsINodeInfo> newNodeInfo;
    rv = nodeInfoManager->GetNodeInfo(mNodeInfo->NameAtom(),
                                      mNodeInfo->GetPrefixAtom(),
                                      mNodeInfo->NamespaceID(),
                                      getter_AddRefs(newNodeInfo));
    NS_ENSURE_SUCCESS(rv, rv);
    NS_ASSERTION(newNodeInfo, "GetNodeInfo lies");
    mNodeInfo.swap(newNodeInfo);
  }

  // Now recurse into our kids
  PRUint32 i;
  for (i = 0; i < GetChildCount(); ++i) {
    // The child can remove itself from the parent in BindToTree.
    nsCOMPtr<nsIContent> child = mAttrsAndChildren.ChildAt(i);
    rv = child->BindToTree(aDocument, this, aBindingParent,
                           aCompileEventHandlers);
    NS_ENSURE_SUCCESS(rv, rv);
  }

  // XXXbz script execution during binding can trigger some of these
  // postcondition asserts....  But we do want that, since things will
  // generally be quite broken when that happens.
  NS_POSTCONDITION(aDocument == GetCurrentDoc(), "Bound to wrong document");
  NS_POSTCONDITION(aParent == GetParent(), "Bound to wrong parent");
  NS_POSTCONDITION(aBindingParent == GetBindingParent(),
                   "Bound to wrong binding parent");
  
  return NS_OK;
}

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nsIDOMNode nsIDOMNode::cloneNode ( in boolean  deep) [inherited]
PRUint32 nsGenericElement::ContentID ( ) const [virtual, inherited]

Get a unique ID for this piece of content.

This ID is used as a key to store state information about this content object and its associated frame object. The state information is stored in a dictionary that is manipulated by the frame manager (nsIFrameManager) inside layout. An opaque pointer to this dictionary is passed to the session history as a handle associated with the current document's state

These methods are DEPRECATED, DON'T USE THEM!!!

Implements nsIContent.

Reimplemented in nsXULElement.

Definition at line 2318 of file nsGenericElement.cpp.

{
  nsDOMSlots *slots = GetExistingDOMSlots();

  if (slots) {
    return slots->mContentID;
  }

  PtrBits flags = GetFlags();

  return flags >> GENERIC_ELEMENT_CONTENT_ID_BITS_OFFSET;
}

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nsresult nsGenericElement::CopyInnerTo ( nsGenericElement aDest,
PRBool  aDeep 
) [protected, inherited]

Copy attributes and children from another content object.

Parameters:
aSrcContentthe object to copy from
aDeepwhether to copy children

Reimplemented in nsGenericHTMLElement.

Definition at line 3844 of file nsGenericElement.cpp.

{
  nsresult rv;
  PRUint32 i, count = mAttrsAndChildren.AttrCount();
  for (i = 0; i < count; ++i) {
    const nsAttrName* name = mAttrsAndChildren.GetSafeAttrNameAt(i);
    const nsAttrValue* value = mAttrsAndChildren.AttrAt(i);
    nsAutoString valStr;
    value->ToString(valStr);
    rv = aDst->SetAttr(name->NamespaceID(), name->LocalName(),
                       name->GetPrefix(), valStr, PR_FALSE);
    NS_ENSURE_SUCCESS(rv, rv);
  }

  if (!aDeep) {
    return NS_OK;
  }

  count = mAttrsAndChildren.ChildCount();
  for (i = 0; i < count; ++i) {
    nsCOMPtr<nsIDOMNode> node =
      do_QueryInterface(mAttrsAndChildren.ChildAt(i));
    NS_ASSERTION(node, "child doesn't implement nsIDOMNode");

    nsCOMPtr<nsIDOMNode> newNode;
    rv = node->CloneNode(PR_TRUE, getter_AddRefs(newNode));
    NS_ENSURE_SUCCESS(rv, rv);

    nsCOMPtr<nsIContent> newContent = do_QueryInterface(newNode);
    rv = aDst->AppendChildTo(newContent, PR_FALSE);
    NS_ENSURE_SUCCESS(rv, rv);
  }

  return NS_OK;
}

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nsresult nsGenericElement::DeleteProperty ( nsIAtom aPropertyName) [virtual, inherited]

Reimplemented from nsIContent.

Definition at line 4375 of file nsGenericElement.cpp.

{
  nsIDocument *doc = GetOwnerDoc();
  if (!doc)
    return nsnull;

  return doc->PropertyTable()->DeleteProperty(this, aPropertyName);
}

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virtual void nsIContent::DoneAddingChildren ( ) [inline, virtual, inherited]

This method is called when the parser finishes creating the element's children, if any are present.

NOTE: this is currently only called for textarea, select, applet, and object elements in the HTML content sink. If you want to call it on your element, modify the content sink of your choice to do so. This is an efficiency measure.

If you also need to determine whether the parser is the one creating your element (through createElement() or cloneNode() generally) then add a boolean aFromParser to the NS_NewXXX() constructor for your element and have the parser pass true. See nsHTMLInputElement.cpp and nsHTMLContentSink::MakeContentObject().

Reimplemented in nsHTMLSelectElement, nsHTMLTextAreaElement, nsXTFElementWrapper, nsHTMLObjectElement, and nsHTMLAppletElement.

Definition at line 645 of file nsIContent.h.

  {
  }

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virtual void nsIContent::DoneCreatingElement ( ) [inline, virtual, inherited]

This method is called when the parser finishes creating the element.

This particularly means that it has done everything you would expect it to have done after it encounters the > at the end of the tag (for HTML or XML). This includes setting the attributes, setting the document / form, and placing the element into the tree at its proper place.

For container elements, this is called before any of the children are created or added into the tree.

NOTE: this is currently only called for input and button, in the HTML content sink. If you want to call it on your element, modify the content sink of your choice to do so. This is an efficiency measure.

If you also need to determine whether the parser is the one creating your element (through createElement() or cloneNode() generally) then add a boolean aFromParser to the NS_NewXXX() constructor for your element and have the parser pass true. See nsHTMLInputElement.cpp and nsHTMLContentSink::MakeContentObject().

DO NOT USE THIS METHOD to get around the fact that it's hard to deal with attributes dynamically. If you make attributes affect your element from this method, it will only happen on initialization and JavaScript will not be able to create elements (which requires them to first create the element and then call setAttribute() directly, at which point DoneCreatingElement() has already been called and is out of the picture).

Reimplemented in nsHTMLInputElement.

Definition at line 598 of file nsIContent.h.

  {
  }
nsresult nsGenericElement::doReplaceOrInsertBefore ( PRBool  aReplace,
nsIDOMNode aNewChild,
nsIDOMNode aRefChild,
nsIContent aParent,
nsIDocument aDocument,
nsAttrAndChildArray aChildArray,
nsIDOMNode **  aReturn 
) [static, inherited]

Actual implementation of the DOM InsertBefore and ReplaceChild methods.

Shared by nsDocument. When called from nsDocument, aParent will be null.

Parameters:
aReplaceTrue if aNewChild should replace aRefChild. False if aNewChild should be inserted before aRefChild.
aNewChildThe child to insert
aRefChildThe child to insert before or replace
aParentThe parent to use for the new child
aDocumentThe document to use for the new child. Must be non-null, if aParent is null and must match aParent->GetCurrentDoc() if aParent is not null.
aChildArrayThe child array to work with
aReturn[out] the child we insert

Definition at line 3357 of file nsGenericElement.cpp.

{
  NS_PRECONDITION(aParent || aDocument, "Must have document if no parent!");
  NS_PRECONDITION(!aParent || aParent->GetCurrentDoc() == aDocument,
                  "Incorrect aDocument");

  *aReturn = nsnull;

  if (!aNewChild || (aReplace && !aRefChild)) {
    return NS_ERROR_NULL_POINTER;
  }

  // Keep a strong reference to the node that we'll return to ensure it
  // doesn't go away.
  nsCOMPtr<nsIDOMNode> returnVal = aReplace ? aRefChild : aNewChild;

  nsCOMPtr<nsIContent> refContent;
  nsresult res = NS_OK;
  PRInt32 insPos;

  nsContentOrDocument container(aParent, aDocument);

  // Figure out which index to insert at
  if (aRefChild) {
    refContent = do_QueryInterface(aRefChild);
    insPos = container.IndexOf(refContent);
    if (insPos < 0) {
      return NS_ERROR_DOM_NOT_FOUND_ERR;
    }

    if (aRefChild == aNewChild) {
      NS_ADDREF(*aReturn = aNewChild);

      return NS_OK;
    }
  } else {
    insPos = container.GetChildCount();
  }

  nsCOMPtr<nsIContent> newContent = do_QueryInterface(aNewChild);
  if (!newContent) {
    return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
  }

  PRUint16 nodeType = 0;
  res = aNewChild->GetNodeType(&nodeType);
  NS_ENSURE_SUCCESS(res, res);

  // Make sure that the inserted node is allowed as a child of its new parent.
  if (!IsAllowedAsChild(newContent, nodeType, aParent, aDocument, aReplace,
                        refContent)) {
    return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
  }

  nsIDocument* old_doc = newContent->GetOwnerDoc();

  // XXXbz The document code and content code have two totally different
  // security checks here.  Why?  Because I'm afraid to change such things this
  // close to 1.8.  But which should we do here, really?  Or both?  For example
  // what should a caller with UniversalBrowserRead/Write/whatever be able to
  // do, exactly?  Do we need to be more careful with documents because random
  // callers _can_ get access to them?  That might be....
  if (old_doc && old_doc != container.GetOwnerDoc()) {
    if (aParent) {
      if (!nsContentUtils::CanCallerAccess(aNewChild)) {
        return NS_ERROR_DOM_SECURITY_ERR;
      }
    } else {
      nsCOMPtr<nsIDOMNode> doc(do_QueryInterface(aDocument));
      if (NS_FAILED(nsContentUtils::CheckSameOrigin(doc, aNewChild))) {
        return NS_ERROR_DOM_SECURITY_ERR;
      }
    }
  }

  // We want an update batch when we expect several mutations to be performed,
  // which is when we're replacing a node, or when we're inserting a fragment.
  mozAutoDocUpdate updateBatch(aDocument, UPDATE_CONTENT_MODEL,
    aReplace || nodeType == nsIDOMNode::DOCUMENT_FRAGMENT_NODE);

  // If we're replacing
  if (aReplace) {
    // Getting (and addrefing) the following child here is sort of wasteful
    // in the common case, but really, it's not that expensive. Get over it.
    refContent = container.GetChildAt(insPos + 1);

    nsMutationGuard guard;

    res = container.RemoveChildAt(insPos, PR_TRUE);
    NS_ENSURE_SUCCESS(res, res);

    if (guard.Mutated(1)) {
      insPos = refContent ? container.IndexOf(refContent) :
                            container.GetChildCount();
      if (insPos < 0) {
        return NS_ERROR_DOM_NOT_FOUND_ERR;
      }

      // Passing PR_FALSE for aIsReplace since we now have removed the node
      // to be replaced.
      if (!IsAllowedAsChild(newContent, nodeType, aParent, aDocument,
                            PR_FALSE, refContent)) {
        return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
      }
    }
  }

  /*
   * Check if we're inserting a document fragment. If we are, we need
   * to remove the children of the document fragment and add them
   * individually (i.e. we don't add the actual document fragment).
   */
  if (nodeType == nsIDOMNode::DOCUMENT_FRAGMENT_NODE) {
    PRUint32 count = newContent->GetChildCount();
    PRBool do_notify = refContent || !aParent;

    // Copy the children into a separate array to avoid having to deal with
    // mutations to the fragment while we're inserting.
    nsCOMArray<nsIContent> fragChildren;
    PRUint32 i;
    for (i = 0; i < count; i++) {
      nsIContent* child = newContent->GetChildAt(i);
      NS_ASSERTION(child->GetCurrentDoc() == nsnull,
                   "How did we get a child with a current doc?");
      if (!fragChildren.AppendObject(child)) {
        return NS_ERROR_OUT_OF_MEMORY;
      }
    }

    // Remove the children from the fragment and flag for possible mutations.
    PRBool mutated = PR_FALSE;
    for (i = count; i > 0;) {
      // We don't need to update i if someone mutates the DOM. The only thing
      // that'd happen is that the resulting child list might be unexpected,
      // but we should never crash since RemoveChildAt is out-of-bounds safe.
      nsMutationGuard guard;
      newContent->RemoveChildAt(--i, PR_TRUE);
      mutated = mutated || guard.Mutated(1);
    }

    nsRefPtr<nsFragmentObserver> fragmentObs;
    if (count && !do_notify) {
      fragmentObs = new nsFragmentObserver(container.GetChildCount(), aParent, aDocument);
      NS_ENSURE_TRUE(fragmentObs, NS_ERROR_OUT_OF_MEMORY);
      fragmentObs->Connect();
    }

    // If do_notify is true, then we don't have to handle the notifications
    // ourselves...  Also, if count is 0 there will be no updates.  So we only
    // want an update batch to happen if count is nonzero and do_notify is not
    // true.
    mozAutoDocUpdate updateBatch(aDocument, UPDATE_CONTENT_MODEL,
                                 count && !do_notify);
    
    // Iterate through the fragment's children, and insert them in the new
    // parent
    for (i = 0; i < count; ++i) {
      // Get the n:th child from the array.
      nsIContent* childContent = fragChildren[i];

      // If we've had any unexpeted mutations so far we need to recheck that
      // the child can still be inserted.
      if (mutated) {
        // We really only need to update insPos if we *just* got an unexpected
        // mutation as opposed to 3 insertions ago. But this is an edgecase so
        // no need to over optimize.
        insPos = refContent ? container.IndexOf(refContent) :
                              container.GetChildCount();
        if (insPos < 0) {
          // Someone seriously messed up the childlist. We have no idea
          // where to insert the remaining children, so just bail.
          res = NS_ERROR_DOM_NOT_FOUND_ERR;
          break;
        }

        nsCOMPtr<nsIDOMNode> tmpNode = do_QueryInterface(childContent);
        PRUint16 tmpType = 0;
        tmpNode->GetNodeType(&tmpType);

        if (childContent->GetParent() || childContent->IsInDoc() ||
            !IsAllowedAsChild(childContent, tmpType, aParent, aDocument, PR_FALSE,
                              refContent)) {
          res = NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
          break;
        }
      }

      nsMutationGuard guard;

      // XXXbz how come no reparenting here?  That seems odd...
      // Insert the child.
      res = container.InsertChildAt(childContent, insPos, do_notify,
                                    aChildArray);

      if (NS_FAILED(res)) {
        break;
      }

      if (fragmentObs) {
        fragmentObs->ChildBound();
      }

      // Check to see if any evil mutation events mucked around with the
      // child list.
      mutated = mutated || guard.Mutated(1);

      ++insPos;
    }

    if (NS_FAILED(res)) {
      if (fragmentObs) {
        fragmentObs->Disconnect();
      }

      // We could try to put the nodes back into the fragment here if we
      // really cared.

      return res;
    }

    if (fragmentObs) {
      NS_ASSERTION(count && !do_notify, "Unexpected state");
      fragmentObs->Finish();
    }

  }
  else {
    PRBool newContentIsXUL = newContent->IsContentOfType(eXUL);

    // Remove the element from the old parent if one exists
    nsIDocument* oldParentDoc = nsnull;
    nsIContent* oldParentCont = newContent->GetParent();
    if (!oldParentCont) {
      oldParentDoc = newContent->GetCurrentDoc();

      // See bug 53901. Crappy XUL sometimes lies about being in the document
      if (oldParentDoc && newContentIsXUL && oldParentDoc->IndexOf(newContent) < 0) {
        oldParentDoc = nsnull;
      }
    }
    if (oldParentCont || oldParentDoc) {
      nsContentOrDocument oldParent(oldParentCont, oldParentDoc);
      PRInt32 removeIndex = oldParent.IndexOf(newContent);

      if (removeIndex < 0) {
        // newContent is anonymous.  We can't deal with this, so just bail
        return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
      }
      
      NS_ASSERTION(!(oldParent.Equals(container) && removeIndex == insPos),
                   "invalid removeIndex");

      nsMutationGuard guard;

      res = oldParent.RemoveChildAt(removeIndex, PR_TRUE);
      NS_ENSURE_SUCCESS(res, res);

      // Adjust insert index if the node we ripped out was a sibling
      // of the node we're inserting before
      if (oldParent.Equals(container) && removeIndex < insPos) {
        --insPos;
      }

      if (guard.Mutated(1)) {
        insPos = refContent ? container.IndexOf(refContent) :
                              container.GetChildCount();
        if (insPos < 0) {
          // Someone seriously messed up the childlist. We have no idea
          // where to insert the new child, so just bail.
          return NS_ERROR_DOM_NOT_FOUND_ERR;
        }

        if (newContent->GetParent() || newContent->IsInDoc() ||
            !IsAllowedAsChild(newContent, nodeType, aParent, aDocument, PR_FALSE,
                              refContent)) {
          return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
        }
      }
    }

    if (!newContentIsXUL) {
      nsContentUtils::ReparentContentWrapper(newContent, aParent,
                                             container.GetOwnerDoc(),
                                             old_doc);
    }

    res = container.InsertChildAt(newContent, insPos, PR_TRUE, aChildArray);
    NS_ENSURE_SUCCESS(res, res);
  }

  returnVal.swap(*aReturn);

  return res;
}

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PRBool nsGenericElement::FindAttributeDependence ( const nsIAtom aAttribute,
const MappedAttributeEntry *const  aMaps[],
PRUint32  aMapCount 
) [static, inherited]

A common method where you can just pass in a list of maps to check for attribute dependence.

Most implementations of IsAttributeMapped should use this function as a default handler.

Definition at line 2440 of file nsGenericElement.cpp.

{
  for (PRUint32 mapindex = 0; mapindex < aMapCount; ++mapindex) {
    for (const MappedAttributeEntry* map = aMaps[mapindex];
         map->attribute; ++map) {
      if (aAttribute == *map->attribute) {
        return PR_TRUE;
      }
    }
  }

  return PR_FALSE;
}
nsresult nsGenericElement::GetAttr ( PRInt32  aNameSpaceID,
nsIAtom aName,
nsAString &  aResult 
) const [virtual, inherited]

Get the current value of the attribute.

This returns a form that is suitable for passing back into SetAttr.

Parameters:
aNameSpaceIDthe namespace of the attr
aNamethe name of the attr
aResultthe value (may legitimately be the empty string) [OUT]
Exceptions:
NS_CONTENT_ATTR_NOT_THEREif the attribute is not set and has no default value
NS_CONTENT_ATTR_NO_VALUEif the attribute exists but has no value
NS_CONTENT_ATTR_HAS_VALUEif the attribute exists and has a non-empty value (==NS_OK)

Implements nsIContent.

Reimplemented in nsXULElement, nsGenericHTMLElement, nsDocumentFragment, and nsXTFElementWrapper.

Definition at line 4057 of file nsGenericElement.cpp.

{
  NS_ASSERTION(nsnull != aName, "must have attribute name");
  NS_ASSERTION(aNameSpaceID != kNameSpaceID_Unknown,
               "must have a real namespace ID!");

  const nsAttrValue* val = mAttrsAndChildren.GetAttr(aName, aNameSpaceID);
  if (!val) {
    // Since we are returning a success code we'd better do
    // something about the out parameters (someone may have
    // given us a non-empty string).
    aResult.Truncate();
    
    return NS_CONTENT_ATTR_NOT_THERE;
  }

  val->ToString(aResult);

  return aResult.IsEmpty() ? NS_CONTENT_ATTR_NO_VALUE :
                             NS_CONTENT_ATTR_HAS_VALUE;
}

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PRUint32 nsGenericElement::GetAttrCount ( ) const [virtual, inherited]

Get the number of all specified attributes.

Returns:
the number of attributes

Implements nsIContent.

Reimplemented in nsXULElement, and nsXTFElementWrapper.

Definition at line 4193 of file nsGenericElement.cpp.

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DOMString nsIDOMElement::getAttribute ( in DOMString  name) [inherited]
nsresult nsGenericElement::GetAttribute ( const nsAString &  aName,
nsAString &  aReturn 
) [inherited]

Reimplemented in nsXTFElementWrapper.

Definition at line 1458 of file nsGenericElement.cpp.

{
  const nsAttrName* name = InternalGetExistingAttrNameFromQName(aName);

  if (!name) {
    if (mNodeInfo->NamespaceID() == kNameSpaceID_XUL) {
      // XXX should be SetDOMStringToNull(aReturn);
      // See bug 232598
      aReturn.Truncate();
    }
    else {
      SetDOMStringToNull(aReturn);
    }

    return NS_OK;
  }

  GetAttr(name->NamespaceID(), name->LocalName(), aReturn);

  return NS_OK;
}

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nsChangeHint nsGenericElement::GetAttributeChangeHint ( const nsIAtom aAttribute,
PRInt32  aModType 
) const [virtual, inherited]

Get a hint that tells the style system what to do when an attribute on this node changes, if something needs to happen in response to the change other than the result of what is mapped into style data via any type of style rule.

Implements nsIStyledContent.

Reimplemented in nsXULElement, nsHTMLSelectElement, nsHTMLInputElement, nsHTMLTextAreaElement, nsHTMLImageElement, nsHTMLOptionElement, nsHTMLCanvasElement, nsHTMLLegendElement, and nsHTMLFrameSetElement.

Definition at line 2421 of file nsGenericElement.cpp.

{
  return nsChangeHint(0);
}
nsIDOMAttr nsIDOMElement::getAttributeNode ( in DOMString  name) [inherited]
nsresult nsGenericElement::GetAttributeNode ( const nsAString &  aName,
nsIDOMAttr **  aReturn 
) [inherited]

Definition at line 1519 of file nsGenericElement.cpp.

{
  NS_ENSURE_ARG_POINTER(aReturn);
  *aReturn = nsnull;

  nsCOMPtr<nsIDOMNamedNodeMap> map;
  nsresult rv = GetAttributes(getter_AddRefs(map));
  NS_ENSURE_SUCCESS(rv, rv);

  nsCOMPtr<nsIDOMNode> node;
  rv = map->GetNamedItem(aName, getter_AddRefs(node));

  if (NS_SUCCEEDED(rv) && node) {
    rv = CallQueryInterface(node, aReturn);
  }

  return rv;
}

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nsIDOMAttr nsIDOMElement::getAttributeNodeNS ( in DOMString  namespaceURI,
in DOMString  localName 
) [inherited]
nsresult nsGenericElement::GetAttributeNodeNS ( const nsAString &  aNamespaceURI,
const nsAString &  aLocalName,
nsIDOMAttr **  aReturn 
) [inherited]

Definition at line 1667 of file nsGenericElement.cpp.

{
  NS_ENSURE_ARG_POINTER(aReturn);

  *aReturn = nsnull;

  nsCOMPtr<nsIDOMNamedNodeMap> map;
  nsresult rv = GetAttributes(getter_AddRefs(map));
  NS_ENSURE_SUCCESS(rv, rv);

  nsCOMPtr<nsIDOMNode> node;
  rv = map->GetNamedItemNS(aNamespaceURI, aLocalName, getter_AddRefs(node));

  if (NS_SUCCEEDED(rv) && node) {
    rv = CallQueryInterface(node, aReturn);
  }

  return rv;
}

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DOMString nsIDOMElement::getAttributeNS ( in DOMString  namespaceURI,
in DOMString  localName 
) [inherited]
nsresult nsGenericElement::GetAttributeNS ( const nsAString &  aNamespaceURI,
const nsAString &  aLocalName,
nsAString &  aReturn 
) [inherited]

Definition at line 1608 of file nsGenericElement.cpp.

{
  PRInt32 nsid;
  nsContentUtils::GetNSManagerWeakRef()->GetNameSpaceID(aNamespaceURI, &nsid);

  if (nsid == kNameSpaceID_Unknown) {
    // Unknown namespace means no attr...

    aReturn.Truncate();

    return NS_OK;
  }

  nsCOMPtr<nsIAtom> name = do_GetAtom(aLocalName);
  GetAttr(nsid, name, aReturn);

  return NS_OK;
}

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Reimplemented in nsDocumentFragment.

Definition at line 1369 of file nsGenericElement.cpp.

{
  NS_ENSURE_ARG_POINTER(aAttributes);
  nsDOMSlots *slots = GetDOMSlots();

  if (!slots) {
    return NS_ERROR_OUT_OF_MEMORY;
  }

  if (!slots->mAttributeMap) {
    slots->mAttributeMap = new nsDOMAttributeMap(this);
    if (!slots->mAttributeMap) {
      return NS_ERROR_OUT_OF_MEMORY;
    }
    if (!slots->mAttributeMap->Init()) {
      slots->mAttributeMap = nsnull;
      return NS_ERROR_FAILURE;
    }
  }

  NS_ADDREF(*aAttributes = slots->mAttributeMap);

  return NS_OK;
}

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nsresult nsGenericElement::GetAttrNameAt ( PRUint32  aIndex,
PRInt32 aNameSpaceID,
nsIAtom **  aName,
nsIAtom **  aPrefix 
) const [virtual, inherited]

Get the namespace / name / prefix of a given attribute.

Parameters:
aIndexthe index of the attribute name
aNameSpacethe name space ID of the attribute name [OUT]
aNamethe attribute name [OUT]
aPrefixthe attribute prefix [OUT]

Implements nsIContent.

Reimplemented in nsXULElement, nsDocumentFragment, and nsXTFElementWrapper.

Definition at line 4173 of file nsGenericElement.cpp.

{
  const nsAttrName* name = mAttrsAndChildren.GetSafeAttrNameAt(aIndex);
  if (name) {
    *aNameSpaceID = name->NamespaceID();
    NS_ADDREF(*aName = name->LocalName());
    NS_IF_ADDREF(*aPrefix = name->GetPrefix());

    return NS_OK;
  }

  *aNameSpaceID = kNameSpaceID_None;
  *aName = nsnull;
  *aPrefix = nsnull;

  return NS_ERROR_ILLEGAL_VALUE;
}

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already_AddRefed< nsIURI > nsGenericElement::GetBaseURI ( ) const [virtual, inherited]

Get the base URI for any relative URIs within this piece of content.

Generally, this is the document's base URI, but certain content carries a local base for backward compatibility, and XML supports setting a per-node base URI.

Returns:
the base URI

Implements nsIContent.

Reimplemented in nsGenericHTMLElement.

Definition at line 2477 of file nsGenericElement.cpp.

{
  nsIDocument* doc = GetOwnerDoc();
  if (!doc) {
    // We won't be able to do security checks, etc.  So don't go any
    // further.  That said, this really shouldn't happen...
    NS_ERROR("Element without owner document");
    return nsnull;
  }

  // Our base URL depends on whether we have an xml:base attribute, as
  // well as on whether any of our ancestors do.
  nsCOMPtr<nsIURI> parentBase;

  nsIContent *parent = GetParent();
  if (parent) {
    parentBase = parent->GetBaseURI();
  } else {
    // No parent, so just use the document (we must be the root or not in the
    // tree).
    parentBase = doc->GetBaseURI();
  }
  
  // Now check for an xml:base attr 
  nsAutoString value;
  nsresult rv = GetAttr(kNameSpaceID_XML, nsHTMLAtoms::base, value);
  if (rv != NS_CONTENT_ATTR_HAS_VALUE) {
    // No xml:base, so we just use the parent's base URL
    nsIURI *base = parentBase;
    NS_IF_ADDREF(base);

    return base;
  }

  nsCOMPtr<nsIURI> ourBase;
  rv = NS_NewURI(getter_AddRefs(ourBase), value,
                 doc->GetDocumentCharacterSet().get(), parentBase);
  if (NS_SUCCEEDED(rv)) {
    // do a security check, almost the same as nsDocument::SetBaseURL()
    rv = nsContentUtils::GetSecurityManager()->
      CheckLoadURIWithPrincipal(doc->GetPrincipal(), ourBase,
                                nsIScriptSecurityManager::STANDARD);
  }

  nsIURI *base;
  if (NS_FAILED(rv)) {
    base = parentBase;
  } else {
    base = ourBase;
  }

  NS_IF_ADDREF(base);

  return base;    
}

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nsIContent * nsGenericElement::GetBindingParent ( ) const [virtual, inherited]

Gets content node with the binding responsible for our construction (and existence).

Used by anonymous content (XBL-generated). null for all explicit content.

Returns:
the binding parent

Implements nsIContent.

Reimplemented in nsXULElement.

Definition at line 2700 of file nsGenericElement.cpp.

{
  nsDOMSlots *slots = GetExistingDOMSlots();

  if (slots) {
    return slots->mBindingParent;
  }
  return nsnull;
}

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nsIContent * nsGenericElement::GetChildAt ( PRUint32  aIndex) const [virtual, inherited]

Get a child by index.

Parameters:
aIndexthe index of the child to get, or null if index out of bounds
Returns:
the child

Implements nsIContent.

Reimplemented in nsXULElement.

Definition at line 4314 of file nsGenericElement.cpp.

{
  return mAttrsAndChildren.GetSafeChildAt(aIndex);
}

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PRUint32 nsGenericElement::GetChildCount ( ) const [virtual, inherited]

Get the number of children.

Returns:
the number of children

Implements nsIContent.

Reimplemented in nsXULElement.

Definition at line 4308 of file nsGenericElement.cpp.

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nsresult nsGenericElement::GetChildNodes ( nsIDOMNodeList **  aChildNodes) [inherited]

Reimplemented in nsDocumentFragment.

Definition at line 1395 of file nsGenericElement.cpp.

{
  nsDOMSlots *slots = GetDOMSlots();

  if (!slots) {
    return NS_ERROR_OUT_OF_MEMORY;
  }

  if (!slots->mChildNodes) {
    slots->mChildNodes = new nsChildContentList(this);
    if (!slots->mChildNodes) {
      return NS_ERROR_OUT_OF_MEMORY;
    }
  }

  NS_ADDREF(*aChildNodes = slots->mChildNodes);

  return NS_OK;
}

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nsIAtom * nsGenericElement::GetClassAttributeName ( ) const [virtual, inherited]

Returns an atom holding the name of the "class" attribute on this content node (if applicable).

Returns null for non-element content nodes.

Implements nsIStyledContent.

Reimplemented in nsXULElement, nsGenericHTMLElement, nsXTFStyledElementWrapper, and nsSVGElement.

Definition at line 2434 of file nsGenericElement.cpp.

{
  return nsnull;
}
const nsAttrValue * nsGenericElement::GetClasses ( ) const [virtual, inherited]

Implements nsIStyledContent.

Reimplemented in nsXULElement, nsGenericHTMLElement, nsXTFStyledElementWrapper, and nsSVGStylableElement.

Definition at line 2383 of file nsGenericElement.cpp.

{
  return nsnull;
}
void nsGenericElement::GetContentsAsText ( nsAString &  aText) [protected, inherited]

GetContentsAsText will take all the textnodes that are children of |this| and concatenate the text in them into aText.

It completely ignores any non-text-node children of |this|; in particular it does not descend into any children of |this| that happen to be container elements.

Parameters:
aTextthe resulting text [OUT]

Definition at line 4328 of file nsGenericElement.cpp.

{
  aText.Truncate();
  PRInt32 children = GetChildCount();

  nsCOMPtr<nsITextContent> tc;

  PRInt32 i;
  for (i = 0; i < children; ++i) {
    nsIContent *child = GetChildAt(i);

    if (child->IsContentOfType(eTEXT)) {
      tc = do_QueryInterface(child);

      tc->AppendTextTo(aText);
    }
  }
}

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nsIDocument* nsIContent::GetCurrentDoc ( ) const [inline, inherited]

Get the document that this content is currently in, if any.

This will be null if the content has no ancestor that is a document.

Returns:
the current document

Reimplemented in nsGenericDOMDataNode.

Definition at line 145 of file nsIContent.h.

  {
    // XXX This should become:
    // return IsInDoc() ? GetOwnerDoc() : nsnull;
    return GetDocument();
  }

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nsIDocument* nsGenericElement::GetDocument ( ) const [inline, virtual, inherited]

DEPRECATED - Use GetCurrentDoc or GetOwnerDoc.

Get the document for this content.

Returns:
the document

Implements nsIContent.

Definition at line 448 of file nsGenericElement.h.

  {
    return IsInDoc() ? GetOwnerDoc() : nsnull;
  }

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already_AddRefed< nsIDOMNSFeatureFactory > nsGenericElement::GetDOMFeatureFactory ( const nsAString &  aFeature,
const nsAString &  aVersion 
) [static, inherited]

Definition at line 1330 of file nsGenericElement.cpp.

{
  nsIDOMNSFeatureFactory *factory = nsnull;
  nsCOMPtr<nsICategoryManager> categoryManager =
    do_GetService(NS_CATEGORYMANAGER_CONTRACTID);
  if (categoryManager) {
    nsCAutoString featureCategory(NS_DOMNS_FEATURE_PREFIX);
    AppendUTF16toUTF8(aFeature, featureCategory);
    nsXPIDLCString contractID;
    nsresult rv = categoryManager->GetCategoryEntry(featureCategory.get(),
                                                    NS_ConvertUTF16toUTF8(aVersion).get(),
                                                    getter_Copies(contractID));
    if (NS_SUCCEEDED(rv)) {
      CallGetService(contractID.get(), &factory);  // addrefs
    }
  }
  return factory;
}

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nsDOMSlots* nsGenericElement::GetDOMSlots ( ) [inline, protected, inherited]

Definition at line 760 of file nsGenericElement.h.

  {
    if (!HasDOMSlots()) {
      nsDOMSlots *slots = new nsDOMSlots(mFlagsOrSlots);

      if (!slots) {
        return nsnull;
      }

      mFlagsOrSlots = NS_REINTERPRET_CAST(PtrBits, slots);
    }

    return NS_REINTERPRET_CAST(nsDOMSlots *, mFlagsOrSlots);
  }

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nsIDOMNodeList nsIDOMElement::getElementsByTagName ( in DOMString  name) [inherited]
nsresult nsGenericElement::GetElementsByTagName ( const nsAString &  aTagname,
nsIDOMNodeList **  aReturn 
) [inherited]

Reimplemented in nsGenericHTMLElement.

Definition at line 1592 of file nsGenericElement.cpp.

{
  nsCOMPtr<nsIAtom> nameAtom = do_GetAtom(aTagname);
  NS_ENSURE_TRUE(nameAtom, NS_ERROR_OUT_OF_MEMORY);

  nsContentList *list = NS_GetContentList(GetCurrentDoc(), nameAtom,
                                          kNameSpaceID_Unknown, this).get();
  NS_ENSURE_TRUE(list, NS_ERROR_OUT_OF_MEMORY);

  // transfer ref to aReturn
  *aReturn = list;
  return NS_OK;
}

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nsIDOMNodeList nsIDOMElement::getElementsByTagNameNS ( in DOMString  namespaceURI,
in DOMString  localName 
) [inherited]
nsresult nsGenericElement::GetElementsByTagNameNS ( const nsAString &  aNamespaceURI,
const nsAString &  aLocalName,
nsIDOMNodeList **  aReturn 
) [inherited]

Reimplemented in nsGenericHTMLElement.

Definition at line 1714 of file nsGenericElement.cpp.

{
  PRInt32 nameSpaceId = kNameSpaceID_Unknown;

  nsContentList *list = nsnull;

  nsIDocument* document = GetCurrentDoc();
  if (!aNamespaceURI.EqualsLiteral("*")) {
    nsContentUtils::GetNSManagerWeakRef()->GetNameSpaceID(aNamespaceURI,
                                                          &nameSpaceId);

    if (nameSpaceId == kNameSpaceID_Unknown) {
      // Unknown namespace means no matches, we create an empty list...
      list = NS_GetContentList(document, nsnull,
                               kNameSpaceID_None, nsnull).get();
      NS_ENSURE_TRUE(list, NS_ERROR_OUT_OF_MEMORY);
    }
  }

  if (!list) {
    nsCOMPtr<nsIAtom> nameAtom = do_GetAtom(aLocalName);
    NS_ENSURE_TRUE(nameAtom, NS_ERROR_OUT_OF_MEMORY);

    list = NS_GetContentList(document, nameAtom, nameSpaceId, this).get();
    NS_ENSURE_TRUE(list, NS_ERROR_OUT_OF_MEMORY);
  }

  // transfer ref to aReturn
  *aReturn = list;
  return NS_OK;
}

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already_AddRefed< nsINodeInfo > nsGenericElement::GetExistingAttrNameFromQName ( const nsAString &  aStr) const [virtual, inherited]

Normalizes an attribute name and returns it as a nodeinfo if an attribute with that name exists.

This method is intended for character case conversion if the content object is case insensitive (e.g. HTML). Returns the nodeinfo of the attribute with the specified name if one exists or null otherwise.

Parameters:
aStrthe unparsed attribute string
Returns:
the node info. May be nsnull.

Implements nsIContent.

Reimplemented in nsXTFElementWrapper.

Definition at line 2457 of file nsGenericElement.cpp.

{
  const nsAttrName* name = InternalGetExistingAttrNameFromQName(aStr);
  if (!name) {
    return nsnull;
  }

  nsINodeInfo* nodeInfo;
  if (name->IsAtom()) {
    mNodeInfo->NodeInfoManager()->GetNodeInfo(name->Atom(), nsnull,
                                              kNameSpaceID_None, &nodeInfo);
  }
  else {
    NS_ADDREF(nodeInfo = name->NodeInfo());
  }

  return nodeInfo;
}

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nsDOMSlots* nsGenericElement::GetExistingDOMSlots ( ) const [inline, protected, inherited]

Definition at line 775 of file nsGenericElement.h.

  {
    if (!HasDOMSlots()) {
      return nsnull;
    }

    return NS_REINTERPRET_CAST(nsDOMSlots *, mFlagsOrSlots);
  }

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nsresult nsGenericElement::GetFirstChild ( nsIDOMNode **  aFirstChild) [inherited]

Reimplemented in nsDocumentFragment.

Definition at line 1424 of file nsGenericElement.cpp.

{
  nsIContent *child = mAttrsAndChildren.GetSafeChildAt(0);
  if (child) {
    return CallQueryInterface(child, aNode);
  }

  *aNode = nsnull;

  return NS_OK;
}

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PtrBits nsGenericElement::GetFlags ( ) const [inline, protected, inherited]

Definition at line 784 of file nsGenericElement.h.

  {
    if (HasDOMSlots()) {
      return NS_REINTERPRET_CAST(nsDOMSlots *, mFlagsOrSlots)->mFlags;
    }

    return mFlagsOrSlots;
  }

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nsIAtom * nsGenericElement::GetID ( ) const [virtual, inherited]

Implements nsIStyledContent.

Reimplemented in nsXULElement.

Definition at line 2355 of file nsGenericElement.cpp.

{
  nsIAtom* IDName = GetIDAttributeName();
  if (IDName) {
    const nsAttrValue* attrVal = mAttrsAndChildren.GetAttr(IDName);
    if (attrVal){
      if (attrVal->Type() == nsAttrValue::eAtom) {
        return attrVal->GetAtomValue();
      }
      if(attrVal->IsEmptyString()){
        return nsnull;
      }
      // Check if the ID has been stored as a string.
      // This would occur if the ID attribute name changed after 
      // the ID was parsed. 
      if (attrVal->Type() == nsAttrValue::eString) {
        nsAutoString idVal(attrVal->GetStringValue());

        // Create an atom from the value and set it into the attribute list. 
        NS_CONST_CAST(nsAttrValue*, attrVal)->ParseAtom(idVal);
        return attrVal->GetAtomValue();
      }
    }
  }
  return nsnull;
}

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nsIAtom * nsGenericElement::GetIDAttributeName ( ) const [virtual, inherited]

Returns an atom holding the name of the attribute of type ID on this content node (if applicable).

Returns null for non-element content nodes.

Implements nsIContent.

Reimplemented in nsXULElement, nsGenericHTMLElement, nsXTFElementWrapper, nsSVGElement, and nsXMLEventsElement.

Definition at line 2428 of file nsGenericElement.cpp.

{
  return mNodeInfo->GetIDAttributeAtom();
}

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Implements nsIStyledContent.

Reimplemented in nsXULElement, nsGenericHTMLElement, and nsSVGElement.

Definition at line 2401 of file nsGenericElement.cpp.

{
  return nsnull;
}
nsresult nsGenericElement::GetLastChild ( nsIDOMNode **  aLastChild) [inherited]

Reimplemented in nsDocumentFragment.

Definition at line 1437 of file nsGenericElement.cpp.

{
  PRUint32 count = mAttrsAndChildren.ChildCount();
  
  if (count > 0) {
    return CallQueryInterface(mAttrsAndChildren.ChildAt(count - 1), aNode);
  }

  *aNode = nsnull;

  return NS_OK;
}

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Get the event listener manager, the guy you talk to to register for events on this element.

Parameters:
aResultthe event listener manager [OUT]

Implements nsIContent.

Reimplemented in nsXULElement.

Definition at line 2719 of file nsGenericElement.cpp.

{
  *aResult = nsnull;

  if (!sEventListenerManagersHash.ops) {
    // We're already shut down, don't bother creating a event listener
    // manager.

    return NS_ERROR_NOT_AVAILABLE;
  }

  EventListenerManagerMapEntry *entry =
    NS_STATIC_CAST(EventListenerManagerMapEntry *,
                   PL_DHashTableOperate(&sEventListenerManagersHash, this,
                                        PL_DHASH_ADD));

  if (!entry) {
    return NS_ERROR_OUT_OF_MEMORY;
  }

  if (!entry->mListenerManager) {
    nsresult rv =
      NS_NewEventListenerManager(getter_AddRefs(entry->mListenerManager));

    if (NS_FAILED(rv)) {
      PL_DHashTableRawRemove(&sEventListenerManagersHash, entry);

      return rv;
    }

    entry->mListenerManager->SetListenerTarget(NS_STATIC_CAST(nsIXMLContent *,
                                                              this));

    SetFlags(GENERIC_ELEMENT_HAS_LISTENERMANAGER);
  }

  *aResult = entry->mListenerManager;
  NS_ADDREF(*aResult);

  return NS_OK;
}

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NS_IMETHODIMP nsGenericElement::GetLocalName ( nsAString &  aLocalName) [inherited]

Reimplemented in nsDocumentFragment, and nsGenericHTMLElement.

Definition at line 1066 of file nsGenericElement.cpp.

{
  mNodeInfo->GetLocalName(aLocalName);
  return NS_OK;
}
PRInt32 nsGenericElement::GetNameSpaceID ( ) const [virtual, inherited]

Get the namespace that this element's tag is defined in.

Returns:
the namespace

Implements nsIContent.

Definition at line 2057 of file nsGenericElement.cpp.

{
  return mNodeInfo->NamespaceID();
}
NS_IMETHODIMP nsGenericElement::GetNamespaceURI ( nsAString &  aNamespaceURI) [inherited]

Reimplemented in nsDocumentFragment.

Definition at line 1199 of file nsGenericElement.cpp.

{
  return mNodeInfo->GetNamespaceURI(aNamespaceURI);
}
NS_IMETHODIMP nsGenericElement::GetNextSibling ( nsIDOMNode **  aNextSibling) [inherited]

Reimplemented in nsDocumentFragment.

Definition at line 1152 of file nsGenericElement.cpp.

{
  *aNextSibling = nsnull;

  nsIContent *sibling = nsnull;
  nsresult rv = NS_OK;

  nsIContent *parent = GetParent();
  if (parent) {
    PRInt32 pos = parent->IndexOf(this);
    if (pos > -1 ) {
      sibling = parent->GetChildAt(pos + 1);
    }
  } else {
    nsIDocument* document = GetCurrentDoc();
    if (document) {
      // Nodes that are just below the document (their parent is the
      // document) need to go to the document to find their next sibling.
      PRInt32 pos = document->IndexOf(this);
      if (pos > -1 ) {
        sibling = document->GetChildAt(pos + 1);
      }
    }
  }

  if (sibling) {
    rv = CallQueryInterface(sibling, aNextSibling);
    NS_ASSERTION(*aNextSibling, "Must be a DOM Node");
  }

  return rv;
}

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nsINodeInfo * nsGenericElement::GetNodeInfo ( ) const [virtual, inherited]

Get the NodeInfo for this element.

Returns:
the nodes node info

Implements nsIContent.

Definition at line 2069 of file nsGenericElement.cpp.

{
  return mNodeInfo;
}

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NS_IMETHODIMP nsGenericElement::GetNodeName ( nsAString &  aNodeName) [inherited]

Reimplemented in nsGenericHTMLElement, and nsDocumentFragment.

Definition at line 1059 of file nsGenericElement.cpp.

{
  mNodeInfo->GetQualifiedName(aNodeName);
  return NS_OK;
}

Reimplemented in nsDocumentFragment.

Definition at line 1089 of file nsGenericElement.cpp.

{
  *aNodeType = (PRUint16)nsIDOMNode::ELEMENT_NODE;
  return NS_OK;
}
NS_IMETHODIMP nsGenericElement::GetNodeValue ( nsAString &  aNodeValue) [inherited]

Reimplemented in nsDocumentFragment.

Definition at line 1073 of file nsGenericElement.cpp.

{
  SetDOMStringToNull(aNodeValue);

  return NS_OK;
}

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nsIDocument* nsGenericElement::GetOwnerDoc ( ) const [inline, virtual, inherited]

Get the ownerDocument for this content.

Returns:
the ownerDocument

Implements nsIContent.

Definition at line 461 of file nsGenericElement.h.

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Reimplemented in nsDocumentFragment.

Definition at line 1186 of file nsGenericElement.cpp.

{
  nsIDocument *doc = GetOwnerDoc();
  if (doc) {
    return CallQueryInterface(doc, aOwnerDocument);
  }

  *aOwnerDocument = nsnull;

  return NS_OK;
}

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nsIContent* nsIContent::GetParent ( ) const [inline, inherited]

Get the parent content for this content.

Returns:
the parent, or null if no parent

Definition at line 163 of file nsIContent.h.

NS_IMETHODIMP nsGenericElement::GetParentNode ( nsIDOMNode **  aParentNode) [inherited]

Reimplemented in nsDocumentFragment.

Definition at line 1096 of file nsGenericElement.cpp.

{
  nsIContent *parent = GetParent();
  if (parent) {
    return CallQueryInterface(parent, aParentNode);
  }

  nsIDocument* doc = GetCurrentDoc();
  if (doc) {
    // If we don't have a parent, but we're in the document, we must
    // be the root node of the document. The DOM says that the root
    // is the document.

    return CallQueryInterface(doc, aParentNode);
  }

  *aParentNode = nsnull;

  return NS_OK;
}

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NS_IMETHODIMP nsGenericElement::GetPrefix ( nsAString &  aPrefix) [inherited]

Reimplemented in nsDocumentFragment.

Definition at line 1205 of file nsGenericElement.cpp.

{
  mNodeInfo->GetPrefix(aPrefix);
  return NS_OK;
}
NS_IMETHODIMP nsGenericElement::GetPreviousSibling ( nsIDOMNode **  aPreviousSibling) [inherited]

Reimplemented in nsDocumentFragment.

Definition at line 1118 of file nsGenericElement.cpp.

{
  *aPrevSibling = nsnull;

  nsIContent *sibling = nsnull;
  nsresult rv = NS_OK;

  nsIContent *parent = GetParent();
  if (parent) {
    PRInt32 pos = parent->IndexOf(this);
    if (pos > 0 ) {
      sibling = parent->GetChildAt(pos - 1);
    }
  } else {
    nsIDocument* document = GetCurrentDoc();
    if (document) {
      // Nodes that are just below the document (their parent is the
      // document) need to go to the document to find their next sibling.
      PRInt32 pos = document->IndexOf(this);
      if (pos > 0 ) {
        sibling = document->GetChildAt(pos - 1);
      }
    }
  }

  if (sibling) {
    rv = CallQueryInterface(sibling, aPrevSibling);
    NS_ASSERTION(*aPrevSibling, "Must be a DOM Node");
  }

  return rv;
}

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void * nsGenericElement::GetProperty ( nsIAtom aPropertyName,
nsresult aStatus = nsnull 
) const [virtual, inherited]

Reimplemented from nsIContent.

Definition at line 4348 of file nsGenericElement.cpp.

{
  nsIDocument *doc = GetOwnerDoc();
  if (!doc)
    return nsnull;

  return doc->PropertyTable()->GetProperty(this, aPropertyName, aStatus);
}

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const nsVoidArray * nsGenericElement::GetRangeList ( ) const [virtual, inherited]

Get the list of ranges that have either endpoint in this content item.

Returns:
the list of ranges owned partially by this content. The nsVoidArray is owned by the content object and its lifetime is controlled completely by the content object.

Implements nsIContent.

Reimplemented in nsXULElement.

Definition at line 2626 of file nsGenericElement.cpp.

{
  if (!HasRangeList()) {
    return nsnull;
  }

  RangeListMapEntry *entry =
    NS_STATIC_CAST(RangeListMapEntry *,
                   PL_DHashTableOperate(&sRangeListsHash, this,
                                        PL_DHASH_LOOKUP));

  if (PL_DHASH_ENTRY_IS_FREE(entry)) {
    NS_ERROR("Huh, our bit says we have a range list, but there's nothing "
             "in the hash!?!!");

    return nsnull;
  }

  return entry->mRangeList;
}

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During the Mark phase of the GC, we need to mark all of the preserved wrappers that are reachable via DOM APIs.

Since reachability for DOM nodes is symmetric, if one DOM node is reachable from another via DOM APIs, then they are in the same strongly connected component. (Strongly connected components are never reachable from each other via DOM APIs.) We can refer to each strongly connected component by walking up to the top of the parent chain. This function finds that root node for any DOM node.

Implements nsIDOMGCParticipant.

Definition at line 1029 of file nsGenericElement.cpp.

{
  // This is an optimized way of walking nsIDOMNode::GetParentNode to
  // the top of the tree.
  nsCOMPtr<nsIDOMGCParticipant> result = do_QueryInterface(GetCurrentDoc());
  if (!result) {
    nsIContent *top = this;
    while (top->GetParent())
      top = top->GetParent();
    result = do_QueryInterface(top);
  }

  return result;
}

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NS_IMETHODIMP nsGenericElement::GetTagName ( nsAString &  aTagName) [inherited]

Reimplemented in nsGenericHTMLElement.

Definition at line 1451 of file nsGenericElement.cpp.

{
  mNodeInfo->GetQualifiedName(aTagName);
  return NS_OK;
}
nsresult nsXMLElement::HandleDOMEvent ( nsPresContext aPresContext,
nsEvent aEvent,
nsIDOMEvent **  aDOMEvent,
PRUint32  aFlags,
nsEventStatus aEventStatus 
) [virtual]

Handle a DOM event for this piece of content.

This method is responsible for handling and controlling all three stages of events, capture, local and bubble. It also does strange things to anonymous content which whiz right by this author's head.

Here are some beginning explanations:

  • if in INIT or CAPTURE mode, it must pass the event to its parent in CAPTURE mode (this happens before the event is fired, therefore the firing of events will occur from the root up to the target).
  • The event is fired to listeners.
  • If in INIT or BUBBLE mode, it passes the event to its parent in BUBBLE mode. This means that the events will be fired up the chain starting from the target to the ancestor.

NOTE: if you are extending nsGenericElement and have to do a default action, call super::HandleDOMEvent() first and check for aEventStatus != nsEventStatus_eIgnore and make sure you are not in CAPTURE mode before proceeding.

XXX Go comment that method, Will Robinson.

Parameters:
aPresContextthe current presentation context
aEventthe event that is being propagated
aDOMEventa special event that may contain a modified target. Pass in null here or aDOMEvent if you are in HandleDOMEvent already; don't worry your pretty little head about it.
aFlagsflags that describe what mode we are in. Generally NS_EVENT_FLAG_CAPTURE, NS_EVENT_FLAG_BUBBLE and NS_EVENT_FLAG_INIT are the ones that matter.
aEventStatusthe status returned from the function. Generally nsEventStatus_eIgnore

Reimplemented from nsGenericElement.

Reimplemented in nsXTFElementWrapper.

Definition at line 260 of file nsXMLElement.cpp.

{
  NS_ENSURE_ARG_POINTER(aEventStatus);
  // Try script event handlers first
  nsresult ret = nsGenericElement::HandleDOMEvent(aPresContext, aEvent,
                                                  aDOMEvent, aFlags,
                                                  aEventStatus);

  if (mIsLink && (NS_OK == ret) && (nsEventStatus_eIgnore == *aEventStatus) &&
      !(aFlags & NS_EVENT_FLAG_CAPTURE) && !(aFlags & NS_EVENT_FLAG_SYSTEM_EVENT)) {
    nsIDocument *document = GetCurrentDoc();
    switch (aEvent->message) {
    case NS_MOUSE_LEFT_BUTTON_DOWN:
      {
        aPresContext->EventStateManager()->
          SetContentState(this, NS_EVENT_STATE_ACTIVE | NS_EVENT_STATE_FOCUS);

        *aEventStatus = nsEventStatus_eConsumeDoDefault;
      }
      break;

    case NS_MOUSE_LEFT_CLICK:
      {
        if (nsEventStatus_eConsumeNoDefault != *aEventStatus) {
          nsInputEvent* inputEvent = NS_STATIC_CAST(nsInputEvent*, aEvent);
          if (inputEvent->isControl || inputEvent->isMeta ||
              inputEvent->isAlt || inputEvent->isShift) {
            break;  // let the click go through so we can handle it in JS/XUL
          }
          nsAutoString show, href;
          nsLinkVerb verb = eLinkVerb_Undefined; // basically means same as replace
          nsCOMPtr<nsIURI> uri = nsContentUtils::GetXLinkURI(this);
          if (!uri) {
            *aEventStatus = nsEventStatus_eConsumeDoDefault; 
            break;
          }

          nsGenericElement::GetAttr(kNameSpaceID_XLink, nsLayoutAtoms::show,
                                    show);

          // XXX Should probably do this using atoms 
          if (show.EqualsLiteral("new")) {
            verb = eLinkVerb_New;
          } else if (show.EqualsLiteral("replace")) {
            verb = eLinkVerb_Replace;
          } else if (show.EqualsLiteral("embed")) {
            verb = eLinkVerb_Embed;
          }

          nsAutoString target;
          GetAttr(kNameSpaceID_XLink, nsLayoutAtoms::_moz_target, target);
          ret = TriggerLink(aPresContext, verb, uri,
                            target, PR_TRUE, PR_TRUE);

          *aEventStatus = nsEventStatus_eConsumeDoDefault; 
        }
      }
      break;

    case NS_MOUSE_RIGHT_BUTTON_DOWN:
      // XXX Bring up a contextual menu provided by the application
      break;

    case NS_KEY_PRESS:
      if (aEvent->eventStructType == NS_KEY_EVENT) {
        nsKeyEvent* keyEvent = NS_STATIC_CAST(nsKeyEvent*, aEvent);
        if (keyEvent->keyCode == NS_VK_RETURN) {
          nsEventStatus status = nsEventStatus_eIgnore;

          //fire click
          nsGUIEvent* guiEvent = NS_STATIC_CAST(nsGUIEvent*, aEvent);
          nsMouseEvent event(NS_IS_TRUSTED_EVENT(aEvent), NS_MOUSE_LEFT_CLICK,
                             guiEvent->widget, nsMouseEvent::eReal);
          event.point = aEvent->point;
          event.refPoint = aEvent->refPoint;
          event.clickCount = 1;
          event.isShift = keyEvent->isShift;
          event.isControl = keyEvent->isControl;
          event.isAlt = keyEvent->isAlt;
          event.isMeta = keyEvent->isMeta;

          nsCOMPtr<nsIPresShell> presShell = aPresContext->GetPresShell();
          if (presShell) {
            ret = presShell->HandleDOMEventWithTarget(this, &event, &status);
            // presShell may no longer be alive, don't use it here
            // unless you keep a reference.
          }
        }
      }
      break;

    case NS_MOUSE_ENTER_SYNTH:
      {
        nsCOMPtr<nsIURI> uri = nsContentUtils::GetXLinkURI(this);
        if (uri) {
          ret = TriggerLink(aPresContext, eLinkVerb_Replace, uri,
                            EmptyString(), PR_FALSE, PR_TRUE);
        }
        
        *aEventStatus = nsEventStatus_eConsumeDoDefault; 
      }
      break;

      // XXX this doesn't seem to do anything yet
    case NS_MOUSE_EXIT_SYNTH:
      {
        ret = LeaveLink(aPresContext);
        *aEventStatus = nsEventStatus_eConsumeDoDefault; 
      }
      break;

    default:
      break;
    }
  }

  return ret;
}

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PRBool nsGenericElement::HasAttr ( PRInt32  aNameSpaceID,
nsIAtom aName 
) const [virtual, inherited]

Determine if an attribute has been set (empty string or otherwise).

Parameters:
aNameSpaceIdthe namespace id of the attribute
aAttrthe attribute name
Returns:
whether an attribute exists

Implements nsIContent.

Reimplemented in nsXULElement, and nsXTFElementWrapper.

Definition at line 4081 of file nsGenericElement.cpp.

{
  NS_ASSERTION(nsnull != aName, "must have attribute name");
  NS_ASSERTION(aNameSpaceID != kNameSpaceID_Unknown,
               "must have a real namespace ID!");

  return mAttrsAndChildren.IndexOfAttr(aName, aNameSpaceID) >= 0;
}

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boolean nsIDOMElement::hasAttribute ( in DOMString  name) [inherited]
nsresult nsGenericElement::HasAttribute ( const nsAString &  aName,
PRBool aReturn 
) [inherited]

Reimplemented in nsXTFElementWrapper.

Definition at line 1749 of file nsGenericElement.cpp.

{
  NS_ENSURE_ARG_POINTER(aReturn);

  const nsAttrName* name = InternalGetExistingAttrNameFromQName(aName);
  *aReturn = (name != nsnull);

  return NS_OK;
}

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boolean nsIDOMElement::hasAttributeNS ( in DOMString  namespaceURI,
in DOMString  localName 
) [inherited]
nsresult nsGenericElement::HasAttributeNS ( const nsAString &  aNamespaceURI,
const nsAString &  aLocalName,
PRBool aReturn 
) [inherited]

Definition at line 1760 of file nsGenericElement.cpp.

{
  NS_ENSURE_ARG_POINTER(aReturn);

  PRInt32 nsid;
  nsContentUtils::GetNSManagerWeakRef()->GetNameSpaceID(aNamespaceURI, &nsid);

  if (nsid == kNameSpaceID_Unknown) {
    // Unknown namespace means no attr...

    *aReturn = PR_FALSE;

    return NS_OK;
  }

  nsCOMPtr<nsIAtom> name = do_GetAtom(aLocalName);
  *aReturn = HasAttr(nsid, name);

  return NS_OK;
}

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NS_IMETHODIMP nsGenericElement::HasAttributes ( PRBool aHasAttributes) [inherited]

Reimplemented in nsDocumentFragment.

Definition at line 1359 of file nsGenericElement.cpp.

{
  NS_ENSURE_ARG_POINTER(aReturn);

  *aReturn = GetAttrCount() > 0;

  return NS_OK;
}

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nsresult nsGenericElement::HasChildNodes ( PRBool aHasChildNodes) [inherited]

Reimplemented in nsDocumentFragment.

Definition at line 1416 of file nsGenericElement.cpp.

{
  *aReturn = mAttrsAndChildren.ChildCount() > 0;

  return NS_OK;
}

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PRBool nsGenericElement::HasDOMSlots ( ) const [inline, protected, inherited]

Definition at line 755 of file nsGenericElement.h.

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PRBool nsGenericElement::HasEventListenerManager ( ) const [inline, protected, inherited]

Definition at line 834 of file nsGenericElement.h.

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PRBool nsGenericElement::HasMutationListeners ( nsIContent aContent,
PRUint32  aType 
) [static, inherited]

Quick helper to determine whether there are any mutation listeners of a given type that apply to this content (are at or above it).

Parameters:
aContentthe content to look for listeners for
aTypethe type of listener (NS_EVENT_BITS_MUTATION_*)
Returns:
whether there are mutation listeners of the specified type for this content or not

Definition at line 3900 of file nsGenericElement.cpp.

{
  nsIDocument* doc = aContent->GetDocument();
  if (!doc)
    return PR_FALSE;

  nsIScriptGlobalObject *global = doc->GetScriptGlobalObject();
  if (!global)
    return PR_FALSE;

  nsCOMPtr<nsPIDOMWindow> window(do_QueryInterface(global));
  if (!window)
    return PR_FALSE;

  if (!window->HasMutationListeners(aType))
    return PR_FALSE;

  // We know a mutation listener is registered, but it might not
  // be in our chain.  Check quickly to see.

  for (nsIContent* curr = aContent; curr; curr = curr->GetParent())
    if (NodeHasMutationListeners(curr))
      return PR_TRUE;

  return NodeHasMutationListeners(doc) || NodeHasMutationListeners(window);
}

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PRBool nsGenericElement::HasProperties ( ) const [inline, protected, inherited]

Definition at line 842 of file nsGenericElement.h.

  {
    PtrBits flags = GetFlags();

    return (flags & GENERIC_ELEMENT_HAS_PROPERTIES) != 0;
  }

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PRBool nsGenericElement::HasRangeList ( ) const [inline, protected, inherited]

Definition at line 827 of file nsGenericElement.h.

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PRInt32 nsGenericElement::IndexOf ( nsIContent aPossibleChild) const [virtual, inherited]

Get the index of a child within this content.

Parameters:
aPossibleChildthe child to get the index
Returns:
the index of the child, or -1 if not a child

Implements nsIContent.

Reimplemented in nsXULElement.

Definition at line 4320 of file nsGenericElement.cpp.

{
  NS_PRECONDITION(nsnull != aPossibleChild, "null ptr");

  return mAttrsAndChildren.IndexOfChild(aPossibleChild);
}

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nsresult nsGenericElement::InitHashes ( ) [static, inherited]
nsIDOMNode nsIDOMNode::insertBefore ( in nsIDOMNode  newChild,
in nsIDOMNode  refChild 
) raises (DOMException) [inherited]
NS_IMETHODIMP nsGenericElement::InsertBefore ( nsIDOMNode aNewChild,
nsIDOMNode aRefChild,
nsIDOMNode **  aReturn 
) [inherited]

Reimplemented in nsDocumentFragment.

Definition at line 3069 of file nsGenericElement.cpp.

{
  return doReplaceOrInsertBefore(PR_FALSE, aNewChild, aRefChild, this,
                                 GetCurrentDoc(), mAttrsAndChildren, aReturn);
}

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nsresult nsGenericElement::InsertChildAt ( nsIContent aKid,
PRUint32  aIndex,
PRBool  aNotify 
) [virtual, inherited]

Insert a content node at a particular index.

Parameters:
aKidthe content to insert
aIndexthe index it is being inserted at (the index it will have after it is inserted)
aNotifywhether to notify the document and appropriate mutation event listeners that the insert has occurred

Implements nsIContent.

Reimplemented in nsXULElement, nsHTMLScriptElement, nsHTMLSelectElement, nsHTMLTextAreaElement, nsSVGScriptElement, nsXTFElementWrapper, nsHTMLOptGroupElement, nsHTMLStyleElement, and nsSVGStyleElement.

Definition at line 2780 of file nsGenericElement.cpp.

{
  NS_PRECONDITION(aKid, "null ptr");

  return doInsertChildAt(aKid, aIndex, aNotify, this, GetCurrentDoc(),
                         mAttrsAndChildren);
}

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const nsAttrName * nsGenericElement::InternalGetExistingAttrNameFromQName ( const nsAString &  aStr) const [protected, virtual, inherited]

Internal hook for converting an attribute name-string to an atomized name.

Reimplemented in nsGenericHTMLElement, and nsXULElement.

Definition at line 3837 of file nsGenericElement.cpp.

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nsresult nsGenericElement::InternalGetFeature ( nsISupports *  aObject,
const nsAString &  aFeature,
const nsAString &  aVersion,
nsISupports **  aReturn 
) [static, inherited]

Definition at line 1313 of file nsGenericElement.cpp.

{
  *aReturn = nsnull;
  nsCOMPtr<nsIDOMNSFeatureFactory> factory =
    GetDOMFeatureFactory(aFeature, aVersion);

  if (factory) {
    factory->GetFeature(aObject, aFeature, aVersion, aReturn);
  }

  return NS_OK;
}

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nsresult nsGenericElement::InternalIsSupported ( nsISupports *  aObject,
const nsAString &  aFeature,
const nsAString &  aVersion,
PRBool aReturn 
) [static, inherited]

Check whether a spec feature/version is supported.

Parameters:
aObjectthe object, which should support the feature, for example nsIDOMNode or nsIDOMDOMImplementation
aFeaturethe feature ("Views", "Core", "HTML", "Range" ...)
aVersionthe version ("1.0", "2.0", ...)
aReturnwhether the feature is supported or not [OUT]

Definition at line 1237 of file nsGenericElement.cpp.

{
  NS_ENSURE_ARG_POINTER(aReturn);
  *aReturn = PR_FALSE;

  // Convert the incoming UTF16 strings to raw char*'s to save us some
  // code when doing all those string compares.
  NS_ConvertUTF16toUTF8 feature(aFeature);
  NS_ConvertUTF16toUTF8 version(aVersion);

  const char *f = feature.get();
  const char *v = version.get();

  if (PL_strcasecmp(f, "XML") == 0 ||
      PL_strcasecmp(f, "HTML") == 0) {
    if (aVersion.IsEmpty() ||
        PL_strcmp(v, "1.0") == 0 ||
        PL_strcmp(v, "2.0") == 0) {
      *aReturn = PR_TRUE;
    }
  } else if (PL_strcasecmp(f, "Views") == 0 ||
             PL_strcasecmp(f, "StyleSheets") == 0 ||
             PL_strcasecmp(f, "Core") == 0 ||
             PL_strcasecmp(f, "CSS") == 0 ||
             PL_strcasecmp(f, "CSS2") == 0 ||
             PL_strcasecmp(f, "Events") == 0 ||
             PL_strcasecmp(f, "UIEvents") == 0 ||
             PL_strcasecmp(f, "MouseEvents") == 0 ||
             // Non-standard!
             PL_strcasecmp(f, "MouseScrollEvents") == 0 ||
             PL_strcasecmp(f, "HTMLEvents") == 0 ||
             PL_strcasecmp(f, "Range") == 0 ||
             PL_strcasecmp(f, "XHTML") == 0) {
    if (aVersion.IsEmpty() ||
        PL_strcmp(v, "2.0") == 0) {
      *aReturn = PR_TRUE;
    }
  } else if ((!gCheckedForXPathDOM || gHaveXPathDOM) &&
             PL_strcasecmp(f, "XPath") == 0 &&
             (aVersion.IsEmpty() ||
              PL_strcmp(v, "3.0") == 0)) {
    if (!gCheckedForXPathDOM) {
      nsCOMPtr<nsIDOMXPathEvaluator> evaluator =
        do_CreateInstance(NS_XPATH_EVALUATOR_CONTRACTID);
      gHaveXPathDOM = (evaluator != nsnull);
      gCheckedForXPathDOM = PR_TRUE;
    }

    *aReturn = gHaveXPathDOM;
  }
#ifdef MOZ_SVG
  else if (PL_strcasecmp(f, "SVGEvents") == 0 ||
           PL_strcasecmp(f, "SVGZoomEvents") == 0 ||
           NS_SVG_TestFeature(aFeature)) {
    if (aVersion.IsEmpty() ||
        PL_strcmp(v, "1.0") == 0 ||
        PL_strcmp(v, "1.1") == 0) {
      *aReturn = PR_TRUE;
    }
  }
#endif /* MOZ_SVG */
  else {
    nsCOMPtr<nsIDOMNSFeatureFactory> factory =
      GetDOMFeatureFactory(aFeature, aVersion);

    if (factory) {
      factory->HasFeature(aObject, aFeature, aVersion, aReturn);
    }
  }
  return NS_OK;
}

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virtual PRInt32 nsIContent::IntrinsicState ( ) const [inline, virtual, inherited]

Method to get the intrinsic content state of this content node.

This is the state that is independent of the node's presentation. To get the full content state, use nsIEventStateManager. Also see nsIEventStateManager for the possible bits that could be set here.

Reimplemented in nsGenericHTMLFormElement, nsHTMLInputElement, nsHTMLOptionElement, nsXTFElementWrapper, and nsHTMLOptGroupElement.

Definition at line 667 of file nsIContent.h.

  {
    return 0;
  }

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PRBool nsGenericElement::IsAnonymousForEvents ( ) const [inline, protected, inherited]

Returns PR_TRUE if this content is anonymous for event handling.

Definition at line 863 of file nsGenericElement.h.

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nsGenericElement::IsAttributeMapped ( const nsIAtom aAttribute) const [inherited]

Definition at line 2415 of file nsGenericElement.cpp.

{
  return PR_FALSE;
}

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PRBool nsGenericElement::IsContentOfType ( PRUint32  aFlags) const [virtual, inherited]

API for doing a quick check if a content object is of a given type, such as HTML, XUL, Text, ...

Use this when you can instead of checking the tag.

Parameters:
aFlagswhat types you want to test for (see above, eTEXT, eELEMENT, eHTML, eHTML_FORM_CONTROL, eXUL)
Returns:
whether the content matches ALL flags passed in

Implements nsIContent.

Reimplemented in nsGenericHTMLFormElement, nsXULElement, nsGenericHTMLElement, and nsSVGElement.

Definition at line 2711 of file nsGenericElement.cpp.

{
  return !(aFlags & ~eELEMENT);
}
virtual PRBool nsIContent::IsDoneAddingChildren ( ) [inline, virtual, inherited]

For HTML textarea, select, applet, and object elements, returns PR_TRUE if all children have been added OR if the element was not created by the parser.

Returns PR_TRUE for all other elements.

Reimplemented in nsHTMLSelectElement, nsHTMLTextAreaElement, nsHTMLObjectElement, and nsHTMLAppletElement.

Definition at line 654 of file nsIContent.h.

  {
    return PR_TRUE;
  }

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PRBool nsXMLElement::IsFocusable ( PRInt32 aTabIndex = nsnull) [virtual]

Check if this content is focusable and in the current tab order.

Note: most callers should use nsIFrame::IsFocusable() instead as it checks visibility and other layout factors as well. Tabbable is indicated by a nonnegative tabindex & is a subset of focusable. For example, only the selected radio button in a group is in the tab order, unless the radio group has no selection in which case all of the visible, non-disabled radio buttons in the group are in the tab order. On the other hand, all of the visible, non-disabled radio buttons are always focusable via clicking or script. Also, depending on either the accessibility.tabfocus pref or a system setting (nowadays: Full keyboard access, mac only) some widgets may be focusable but removed from the tab order.

Parameters:
[inout,optional]aTabIndex the computed tab index In: default tabindex for element (-1 nonfocusable, == 0 focusable) Out: computed tabindex
[optional]aTabIndex the computed tab index < 0 if not tabbable == 0 if in normal tab order > 0 can be tabbed to in the order specified by this value
Returns:
whether the content is focusable via mouse, kbd or script.

Reimplemented from nsIContent.

Definition at line 384 of file nsXMLElement.cpp.

{
  nsCOMPtr<nsIURI> linkURI = nsContentUtils::GetLinkURI(this);
  if (linkURI) {
    if (aTabIndex) {
      *aTabIndex = ((sTabFocusModel & eTabFocus_linksMask) == 0 ? -1 : 0);
    }
    return PR_TRUE;
  }

  if (aTabIndex) {
    *aTabIndex = -1;
  }

  return PR_FALSE;
}

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PRBool nsGenericElement::IsInDoc ( ) const [inline, virtual, inherited]

Returns true if the content has an ancestor that is a document.

Returns:
whether this content is in a document tree

Implements nsIContent.

Definition at line 457 of file nsGenericElement.h.

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PRBool nsGenericElement::IsNativeAnonymous ( ) const [virtual, inherited]

Get whether this content is C++-generated anonymous content.

See also:
nsIAnonymousContentCreator
Returns:
whether this content is anonymous

Implements nsIContent.

Reimplemented in nsXULElement.

Definition at line 2041 of file nsGenericElement.cpp.

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boolean nsIDOMNode::isSupported ( in DOMString  feature,
in DOMString  version 
) [inherited]
NS_IMETHODIMP nsGenericElement::IsSupported ( const nsAString &  aFeature,
const nsAString &  aVersion,
PRBool aReturn 
) [inherited]

Reimplemented in nsDocumentFragment, and nsSVGElement.

Definition at line 1351 of file nsGenericElement.cpp.

{
  return InternalIsSupported(this, aFeature, aVersion, aReturn);
}

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nsresult nsGenericElement::JoinTextNodes ( nsIContent aFirst,
nsIContent aSecond 
) [inherited]

Take two text nodes and append the second to the first.

Parameters:
aFirstthe node which will contain first + second [INOUT]
aSecondthe node which will be appended

Definition at line 1784 of file nsGenericElement.cpp.

{
  nsresult rv = NS_OK;
  nsCOMPtr<nsIDOMText> firstText(do_QueryInterface(aFirst, &rv));

  if (NS_SUCCEEDED(rv)) {
    nsCOMPtr<nsIDOMText> secondText(do_QueryInterface(aSecond, &rv));

    if (NS_SUCCEEDED(rv)) {
      nsAutoString str;

      rv = secondText->GetData(str);
      if (NS_SUCCEEDED(rv)) {
        rv = firstText->AppendData(str);
      }
    }
  }

  return rv;
}

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nsresult nsGenericElement::LeaveLink ( nsPresContext aPresContext) [inherited]

Do whatever needs to be done when the mouse leaves a link.

Definition at line 3733 of file nsGenericElement.cpp.

{
  nsILinkHandler *handler = aPresContext->GetLinkHandler();
  if (!handler) {
    return NS_OK;
  }

  return handler->OnLeaveLink();
}

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Give this element a chance to fire links that should be fired automatically when loaded.

If the element was an autoloading link and it was succesfully handled, we will throw special nsresult values.

Parameters:
aShellthe current doc shell (to possibly load the link on)
Exceptions:
NS_OKif nothing happened
NS_XML_AUTOLINK_EMBEDif the caller is loading the link embedded
NS_XML_AUTOLINK_NEWif the caller is loading the link in a new window
NS_XML_AUTOLINK_REPLACEif it is loading a link that will replace the current window (and thus the caller must stop parsing)
NS_XML_AUTOLINK_UNDEFINEDif it is loading in any other way--in which case, the caller should stop parsing as well.

Reimplemented from nsGenericElement.

Definition at line 186 of file nsXMLElement.cpp.

{
  NS_ENSURE_ARG_POINTER(aShell);

  nsresult rv = NS_OK;

  if (mIsLink) {
    NS_NAMED_LITERAL_STRING(onloadString, "onLoad");
    do {
      // actuate="onLoad" ?
      nsAutoString value;
      rv = nsGenericElement::GetAttr(kNameSpaceID_XLink,
                                     nsLayoutAtoms::actuate, value);
      if (rv == NS_CONTENT_ATTR_HAS_VALUE &&
          value.Equals(onloadString)) {

        // Disable in Mail/News for now. We may want a pref to control
        // this at some point.
        nsCOMPtr<nsIDocShellTreeItem> docShellItem(do_QueryInterface(aShell));
        if (docShellItem) {
          nsCOMPtr<nsIDocShellTreeItem> rootItem;
          docShellItem->GetRootTreeItem(getter_AddRefs(rootItem));
          nsCOMPtr<nsIDocShell> docshell(do_QueryInterface(rootItem));
          if (docshell) {
            PRUint32 appType;
            if (NS_SUCCEEDED(docshell->GetAppType(&appType)) &&
                appType == nsIDocShell::APP_TYPE_MAIL) {
              return NS_OK;
            }
          }
        }

        // show= ?
        nsLinkVerb verb = eLinkVerb_Undefined; // basically means same as replace
        rv = nsGenericElement::GetAttr(kNameSpaceID_XLink,
                                       nsLayoutAtoms::show, value);
        if (NS_FAILED(rv))
          break;

        // XXX Should probably do this using atoms 
        if (value.EqualsLiteral("new")) {
          // We should just act like an HTML link with target="_blank" and if
          // someone diverts or blocks those, that's fine with us.  We don't
          // care.
          verb = eLinkVerb_New;
        } else if (value.EqualsLiteral("replace")) {
          // We want to actually stop processing the current document now.
          // We do this by returning the correct value so that the one
          // that called us knows to stop processing.
          verb = eLinkVerb_Replace;
        } else if (value.EqualsLiteral("embed")) {
          // XXX TODO
          break;
        }

        // base
        nsCOMPtr<nsIURI> uri = nsContentUtils::GetXLinkURI(this);
        if (uri) {
          nsCOMPtr<nsPresContext> pc;
          rv = DocShellToPresContext(aShell, getter_AddRefs(pc));
          if (NS_SUCCEEDED(rv)) {
            rv = TriggerLink(pc, verb, uri, EmptyString(), PR_TRUE, PR_FALSE);

            return SpecialAutoLoadReturn(rv, verb);
          }
        } // href
      }
    } while (0);
  }

  return rv;
}

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PRBool nsGenericElement::MayHaveFrame ( ) const [virtual, inherited]

Returns PR_TRUE if there is a chance that the content node has a frame, PR_FALSE otherwise.

Reimplemented from nsIContent.

Definition at line 2774 of file nsGenericElement.cpp.

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void nsIDOMNode::normalize ( ) [inherited]

Reimplemented in nsDocumentFragment.

Definition at line 1807 of file nsGenericElement.cpp.

{
  nsresult result = NS_OK;
  PRUint32 index, count = GetChildCount();

  for (index = 0; (index < count) && (NS_OK == result); index++) {
    nsIContent *child = GetChildAt(index);

    nsCOMPtr<nsIDOMNode> node = do_QueryInterface(child);
    if (node) {
      PRUint16 nodeType;
      node->GetNodeType(&nodeType);

      switch (nodeType) {
        case nsIDOMNode::TEXT_NODE:

          if (index+1 < count) {
            // Get the sibling. If it's also a text node, then
            // remove it from the tree and join the two text
            // nodes.
            nsIContent *sibling = GetChildAt(index + 1);

            nsCOMPtr<nsIDOMNode> siblingNode = do_QueryInterface(sibling);

            if (siblingNode) {
              PRUint16 siblingNodeType;
              siblingNode->GetNodeType(&siblingNodeType);

              if (siblingNodeType == nsIDOMNode::TEXT_NODE) {
                result = RemoveChildAt(index+1, PR_TRUE);
                if (NS_FAILED(result)) {
                  return result;
                }

                result = JoinTextNodes(child, sibling);
                if (NS_FAILED(result)) {
                  return result;
                }
                count--;
                index--;
              }
            }
          }
          break;

        case nsIDOMNode::ELEMENT_NODE:
          nsCOMPtr<nsIDOMElement> element = do_QueryInterface(child);

          if (element) {
            result = element->Normalize();
          }
          break;
      }
    }
  }

  return result;
}

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nsIStyledContent::NS_IMETHOD_ ( PRBool  ) const [pure virtual, inherited]
NS_DECL_ISUPPORTS nsresult nsGenericElement::PostQueryInterface ( REFNSIID  aIID,
void **  aInstancePtr 
) [inherited]

Called during QueryInterface to give the binding manager a chance to get an interface for this element.

nsresult nsGenericElement::RangeAdd ( nsIDOMRange aRange) [virtual, inherited]

Inform content of range ownership changes.

This allows content to do the right thing to ranges in the face of changes to the content model. RangeRemove -- informs content that it no longer owns a range endpoint GetRangeList -- returns the list of ranges that have one or both endpoints within this content item Inform content that it owns one or both range endpoints

Parameters:
aRangethe range the content owns

Implements nsIContent.

Reimplemented in nsXULElement.

Definition at line 2534 of file nsGenericElement.cpp.

{
  if (!sRangeListsHash.ops) {
    // We've already been shut down, don't bother adding a range...

    return NS_OK;
  }

  RangeListMapEntry *entry =
    NS_STATIC_CAST(RangeListMapEntry *,
                   PL_DHashTableOperate(&sRangeListsHash, this, PL_DHASH_ADD));

  if (!entry) {
    return NS_ERROR_OUT_OF_MEMORY;
  }

  // lazy allocation of range list
  if (!entry->mRangeList) {
    NS_ASSERTION(!(GetFlags() & GENERIC_ELEMENT_HAS_RANGELIST),
                 "Huh, nsGenericElement flags don't reflect reality!!!");

    entry->mRangeList = new nsAutoVoidArray();

    if (!entry->mRangeList) {
      PL_DHashTableRawRemove(&sRangeListsHash, entry);

      return NS_ERROR_OUT_OF_MEMORY;
    }

    SetFlags(GENERIC_ELEMENT_HAS_RANGELIST);
  }

  // Make sure we don't add a range that is already in the list!
  PRInt32 i = entry->mRangeList->IndexOf(aRange);

  if (i >= 0) {
    // Range is already in the list, so there is nothing to do!

    return NS_OK;
  }

  // dont need to addref - this call is made by the range object
  // itself
  PRBool rv = entry->mRangeList->AppendElement(aRange);
  if (!rv) {
    if (entry->mRangeList->Count() == 0) {
      // Fresh entry, remove it from the hash...

      PL_DHashTableRawRemove(&sRangeListsHash, entry);
    }

    return NS_ERROR_OUT_OF_MEMORY;
  }

  return NS_OK;
}

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void nsGenericElement::RangeRemove ( nsIDOMRange aRange) [virtual, inherited]

Inform content that it no longer owns either range endpoint.

Parameters:
aRangethe range the content no longer owns

Implements nsIContent.

Reimplemented in nsXULElement.

Definition at line 2593 of file nsGenericElement.cpp.

{
  if (!HasRangeList()) {
    return;
  }

  RangeListMapEntry *entry =
    NS_STATIC_CAST(RangeListMapEntry *,
                   PL_DHashTableOperate(&sRangeListsHash, this,
                                        PL_DHASH_LOOKUP));

  if (PL_DHASH_ENTRY_IS_FREE(entry)) {
    NS_ERROR("Huh, our bit says we have a range list, but there's nothing "
             "in the hash!?!!");

    return;
  }

  if (!entry->mRangeList) {
    return;
  }

  // dont need to release - this call is made by the range object itself
  entry->mRangeList->RemoveElement(aRange);

  if (entry->mRangeList->Count() == 0) {
    PL_DHashTableRawRemove(&sRangeListsHash, entry);

    UnsetFlags(GENERIC_ELEMENT_HAS_RANGELIST);
  }
}

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void nsIDOMElement::removeAttribute ( in DOMString  name) raises (DOMException) [inherited]
nsresult nsGenericElement::RemoveAttribute ( const nsAString &  aName) [inherited]

Reimplemented in nsXTFElementWrapper.

Definition at line 1502 of file nsGenericElement.cpp.

{
  const nsAttrName* name = InternalGetExistingAttrNameFromQName(aName);

  if (!name) {
    return NS_OK;
  }

  // Hold a strong reference here so that the atom or nodeinfo doesn't go
  // away during UnsetAttr. If it did UnsetAttr would be left with a
  // dangling pointer as argument without knowing it.
  nsAttrName tmp(*name);

  return UnsetAttr(name->NamespaceID(), name->LocalName(), PR_TRUE);
}

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nsIDOMAttr nsIDOMElement::removeAttributeNode ( in nsIDOMAttr  oldAttr) raises (DOMException) [inherited]
nsresult nsGenericElement::RemoveAttributeNode ( nsIDOMAttr aOldAttr,
nsIDOMAttr **  aReturn 
) [inherited]

Definition at line 1564 of file nsGenericElement.cpp.

{
  NS_ENSURE_ARG_POINTER(aReturn);
  NS_ENSURE_ARG_POINTER(aAttribute);

  *aReturn = nsnull;

  nsCOMPtr<nsIDOMNamedNodeMap> map;
  nsresult rv = GetAttributes(getter_AddRefs(map));
  NS_ENSURE_SUCCESS(rv, rv);

  nsAutoString name;

  rv = aAttribute->GetName(name);
  if (NS_SUCCEEDED(rv)) {
    nsCOMPtr<nsIDOMNode> node;
    rv = map->RemoveNamedItem(name, getter_AddRefs(node));

    if (NS_SUCCEEDED(rv) && node) {
      rv = CallQueryInterface(node, aReturn);
    }
  }

  return rv;
}

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void nsIDOMElement::removeAttributeNS ( in DOMString  namespaceURI,
in DOMString  localName 
) raises (DOMException) [inherited]
nsresult nsGenericElement::RemoveAttributeNS ( const nsAString &  aNamespaceURI,
const nsAString &  aLocalName 
) [inherited]

Definition at line 1646 of file nsGenericElement.cpp.

{
  nsCOMPtr<nsIAtom> name = do_GetAtom(aLocalName);
  PRInt32 nsid;

  nsContentUtils::GetNSManagerWeakRef()->GetNameSpaceID(aNamespaceURI, &nsid);

  if (nsid == kNameSpaceID_Unknown) {
    // Unknown namespace means no attr...

    return NS_OK;
  }

  nsAutoString tmp;
  UnsetAttr(nsid, name, PR_TRUE);

  return NS_OK;
}

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nsIDOMNode nsIDOMNode::removeChild ( in nsIDOMNode  oldChild) raises (DOMException) [inherited]
NS_IMETHODIMP nsGenericElement::RemoveChild ( nsIDOMNode aOldChild,
nsIDOMNode **  aReturn 
) [inherited]

Reimplemented in nsDocumentFragment.

Definition at line 3659 of file nsGenericElement.cpp.

{
  *aReturn = nsnull;

  if (!aOldChild) {
    return NS_ERROR_NULL_POINTER;
  }

  nsresult res;

  nsCOMPtr<nsIContent> content(do_QueryInterface(aOldChild, &res));

  if (NS_FAILED(res)) {
    /*
     * If we're asked to remove something that doesn't support nsIContent
     * it can not be one of our children, i.e. we return NOT_FOUND_ERR.
     */
    return NS_ERROR_DOM_NOT_FOUND_ERR;
  }

  PRInt32 pos = IndexOf(content);

  if (pos < 0) {
    /*
     * aOldChild isn't one of our children.
     */
    return NS_ERROR_DOM_NOT_FOUND_ERR;
  }

  res = RemoveChildAt(pos, PR_TRUE);

  *aReturn = aOldChild;
  NS_ADDREF(aOldChild);

  return res;
}

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nsresult nsGenericElement::RemoveChildAt ( PRUint32  aIndex,
PRBool  aNotify 
) [virtual, inherited]

Remove a child from this content node.

Parameters:
aIndexthe index of the child to remove
aNotifywhether to notify the document and appropriate mutation event listeners that the replace has occurred

Implements nsIContent.

Reimplemented in nsXULElement, nsHTMLSelectElement, nsHTMLTextAreaElement, nsXTFElementWrapper, nsHTMLOptGroupElement, nsHTMLStyleElement, and nsSVGStyleElement.

Definition at line 2908 of file nsGenericElement.cpp.

{
  nsCOMPtr<nsIContent> oldKid = mAttrsAndChildren.GetSafeChildAt(aIndex);
  NS_ASSERTION(oldKid == GetChildAt(aIndex), "Unexpected child in RemoveChildAt");

  if (oldKid) {
    return doRemoveChildAt(aIndex, aNotify, oldKid, this, GetCurrentDoc(),
                           mAttrsAndChildren);
  }

  return NS_OK;
}

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virtual void nsIContent::RemoveFocus ( nsPresContext aPresContext) [inline, virtual, inherited]

Remove the focus on this content.

This is generally something for the event state manager to do, not ordinary people. Ordinary people should do something like nsGenericHTMLElement::SetElementFocus(). This method is the end result, the point where the content finds out it has been focused.

All content elements are potentially focusable.

Parameters:
aPresContextthe pres context
See also:
nsGenericHTMLElement::SetElementFocus()

Reimplemented in nsXULElement, and nsGenericHTMLElement.

Definition at line 479 of file nsIContent.h.

  {
  }
nsIDOMNode nsIDOMNode::replaceChild ( in nsIDOMNode  newChild,
in nsIDOMNode  oldChild 
) raises (DOMException) [inherited]
NS_IMETHODIMP nsGenericElement::ReplaceChild ( nsIDOMNode aNewChild,
nsIDOMNode aOldChild,
nsIDOMNode **  aReturn 
) [inherited]

Reimplemented in nsDocumentFragment.

Definition at line 3077 of file nsGenericElement.cpp.

{
  return doReplaceOrInsertBefore(PR_TRUE, aNewChild, aOldChild, this,
                                 GetCurrentDoc(), mAttrsAndChildren, aReturn);
}

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nsresult nsXMLElement::SetAttr ( PRInt32  aNameSpaceID,
nsIAtom aName,
const nsAString &  aValue,
PRBool  aNotify 
) [inline]

Set attribute values.

All attribute values are assumed to have a canonical string representation that can be used for these methods. The SetAttr method is assumed to perform a translation of the canonical form into the underlying content specific form.

Parameters:
aNameSpaceIDthe namespace of the attribute
aNamethe name of the attribute
aValuethe value to set
aNotifyspecifies how whether or not the document and appropriate mutation event listeners should be notified of the attribute change.

Reimplemented from nsGenericElement.

Definition at line 73 of file nsXMLElement.h.

  {
    return SetAttr(aNameSpaceID, aName, nsnull, aValue, aNotify);
  }
nsresult nsXMLElement::SetAttr ( PRInt32  aNameSpaceID,
nsIAtom aName,
nsIAtom aPrefix,
const nsAString &  aValue,
PRBool  aNotify 
) [virtual]

Set attribute values.

All attribute values are assumed to have a canonical String representation that can be used for these methods. The SetAttr method is assumed to perform a translation of the canonical form into the underlying content specific form.

Parameters:
aNameSpaceIDthe namespace of the attribute
aNamethe name of the attribute
aPrefixthe prefix of the attribute
aValuethe value to set
aNotifyspecifies how whether or not the document and appropriate mutation event listeners should be notified of the attribute change.

Reimplemented from nsGenericElement.

Reimplemented in nsXTFElementWrapper, and nsXMLEventsElement.

Definition at line 132 of file nsXMLElement.cpp.

{
  if (aNameSpaceID == kNameSpaceID_XLink && aName == nsHTMLAtoms::type) { 

    // NOTE: This really is a link according to the XLink spec,
    //       we do not need to check other attributes. If there
    //       is no href attribute, then this link is simply
    //       untraversible [XLink 3.2].
    mIsLink = aValue.EqualsLiteral("simple");

    // We will check for actuate="onLoad" in MaybeTriggerAutoLink
  }

  return nsGenericElement::SetAttr(aNameSpaceID, aName, aPrefix, aValue,
                                   aNotify);
}

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void nsIDOMElement::setAttribute ( in DOMString  name,
in DOMString  value 
) raises (DOMException) [inherited]
nsresult nsGenericElement::SetAttribute ( const nsAString &  aName,
const nsAString &  aValue 
) [inherited]

Reimplemented in nsGenericHTMLElement.

Definition at line 1482 of file nsGenericElement.cpp.

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nsIDOMAttr nsIDOMElement::setAttributeNode ( in nsIDOMAttr  newAttr) raises (DOMException) [inherited]
nsresult nsGenericElement::SetAttributeNode ( nsIDOMAttr aNewAttr,
nsIDOMAttr **  aReturn 
) [inherited]

Definition at line 1540 of file nsGenericElement.cpp.

{
  NS_ENSURE_ARG_POINTER(aReturn);
  NS_ENSURE_ARG_POINTER(aAttribute);

  *aReturn = nsnull;

  nsCOMPtr<nsIDOMNamedNodeMap> map;
  nsresult rv = GetAttributes(getter_AddRefs(map));
  NS_ENSURE_SUCCESS(rv, rv);

  nsCOMPtr<nsIDOMNode> returnNode;
  rv = map->SetNamedItem(aAttribute, getter_AddRefs(returnNode));
  NS_ENSURE_SUCCESS(rv, rv);

  if (returnNode) {
    rv = CallQueryInterface(returnNode, aReturn);
  }

  return rv;
}

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nsIDOMAttr nsIDOMElement::setAttributeNodeNS ( in nsIDOMAttr  newAttr) raises (DOMException) [inherited]
nsresult nsGenericElement::SetAttributeNodeNS ( nsIDOMAttr aNewAttr,
nsIDOMAttr **  aReturn 
) [inherited]

Definition at line 1690 of file nsGenericElement.cpp.

{
  NS_ENSURE_ARG_POINTER(aReturn);
  NS_ENSURE_ARG_POINTER(aNewAttr);

  *aReturn = nsnull;

  nsCOMPtr<nsIDOMNamedNodeMap> map;
  nsresult rv = GetAttributes(getter_AddRefs(map));
  NS_ENSURE_SUCCESS(rv, rv);

  nsCOMPtr<nsIDOMNode> returnNode;
  rv = map->SetNamedItemNS(aNewAttr, getter_AddRefs(returnNode));
  NS_ENSURE_SUCCESS(rv, rv);

  if (returnNode) {
    rv = CallQueryInterface(returnNode, aReturn);
  }

  return rv;
}

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void nsIDOMElement::setAttributeNS ( in DOMString  namespaceURI,
in DOMString  qualifiedName,
in DOMString  value 
) raises (DOMException) [inherited]
nsresult nsGenericElement::SetAttributeNS ( const nsAString &  aNamespaceURI,
const nsAString &  aQualifiedName,
const nsAString &  aValue 
) [inherited]

Definition at line 1630 of file nsGenericElement.cpp.

{
  nsCOMPtr<nsINodeInfo> ni;
  nsresult rv =
    nsContentUtils::GetNodeInfoFromQName(aNamespaceURI, aQualifiedName,
                                         mNodeInfo->NodeInfoManager(),
                                         getter_AddRefs(ni));
  NS_ENSURE_SUCCESS(rv, rv);

  return SetAttr(ni->NamespaceID(), ni->NameAtom(), ni->GetPrefixAtom(),
                 aValue, PR_TRUE);
}

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void nsGenericElement::SetContentID ( PRUint32  aID) [virtual, inherited]

Set the unique content ID for this content.

Parameters:
aIDthe ID to set

Reimplemented from nsIContent.

Reimplemented in nsXULElement.

Definition at line 2332 of file nsGenericElement.cpp.

{
  // This should be in the constructor!!!

  if (HasDOMSlots() || aID > GENERIC_ELEMENT_CONTENT_ID_MAX_VALUE) {
    nsDOMSlots *slots = GetDOMSlots();

    if (slots) {
      slots->mContentID = aID;
    }
  } else {
    UnsetFlags(GENERIC_ELEMENT_CONTENT_ID_MASK);
    SetFlags(aID << GENERIC_ELEMENT_CONTENT_ID_BITS_OFFSET);
  }
}

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static void nsGenericElement::SetDocumentInChildrenOf ( nsIContent aContent,
nsIDocument aDocument,
PRBool  aCompileEventHandlers 
) [static, inherited]

Set .document in the immediate children of said content (but not in content itself).

SetDocument() in the children will recursively call this.

Parameters:
aContentthe content to get the children of
aDocumentthe document to set
aCompileEventHandlerswhether to initialize the event handlers in the document (used by nsXULElement)
void nsGenericElement::SetFlags ( PtrBits  aFlagsToSet) [inline, protected, inherited]

Definition at line 793 of file nsGenericElement.h.

  {
    NS_ASSERTION(!((aFlagsToSet & GENERIC_ELEMENT_CONTENT_ID_MASK) &&
                   (aFlagsToSet & ~GENERIC_ELEMENT_CONTENT_ID_MASK)),
                 "Whaaa, don't set content ID bits and flags together!!!");

    nsDOMSlots *slots = GetExistingDOMSlots();

    if (slots) {
      slots->mFlags |= aFlagsToSet;

      return;
    }

    mFlagsOrSlots |= aFlagsToSet;
  }

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void nsGenericElement::SetFocus ( nsPresContext aPresContext) [virtual, inherited]

Set the focus on this content.

This is generally something for the event state manager to do, not ordinary people. Ordinary people should do something like nsGenericHTMLElement::SetElementFocus(). This method is the end result, the point where the content finds out it has been focused.

All content elements are potentially focusable.

Parameters:
aPresContextthe pres context
See also:
nsGenericHTMLElement::SetElementFocus()

Reimplemented from nsIContent.

Reimplemented in nsXULElement, nsHTMLSelectElement, nsHTMLInputElement, nsHTMLSharedElement, nsHTMLTextAreaElement, nsHTMLAnchorElement, nsHTMLButtonElement, nsHTMLLabelElement, nsHTMLAreaElement, nsHTMLLegendElement, nsHTMLAppletElement, and nsHTMLObjectElement.

Definition at line 2648 of file nsGenericElement.cpp.

{
  // Traditionally focusable elements can take focus as long as they don't set
  // the disabled attribute

  nsIFrame* frame = nsnull;
  nsCOMPtr<nsIPresShell> presShell = aPresContext->PresShell();
  presShell->GetPrimaryFrameFor(this, &frame);
  if (frame && frame->IsFocusable()) {
    aPresContext->EventStateManager()->SetContentState(this,
                                                        NS_EVENT_STATE_FOCUS);
    // Setting content state can cause the frame to be destroyed because of
    // style changes so we need to lookup the frame again (bug 330367).
    presShell->GetPrimaryFrameFor(this, &frame);
    if (frame) {
      presShell->ScrollFrameIntoView(frame, NS_PRESSHELL_SCROLL_IF_NOT_VISIBLE,
                                     NS_PRESSHELL_SCROLL_IF_NOT_VISIBLE);
    }
  }
}

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NS_IMETHODIMP nsGenericElement::SetInlineStyleRule ( nsICSSStyleRule aStyleRule,
PRBool  aNotify 
) [virtual, inherited]

Implements nsIStyledContent.

Reimplemented in nsXULElement, nsGenericHTMLElement, and nsSVGElement.

Definition at line 2407 of file nsGenericElement.cpp.

{
  NS_NOTYETIMPLEMENTED("nsGenericElement::SetInlineStyleRule");
  return NS_ERROR_NOT_IMPLEMENTED;
}

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void nsGenericElement::SetMayHaveFrame ( PRBool  aMayHaveFrame) [virtual, inherited]

Call to let the content node know that it may now have a frame.

The content node may use this to determine what MayHaveFrame returns.

Reimplemented from nsIContent.

Definition at line 2763 of file nsGenericElement.cpp.

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void nsGenericElement::SetNativeAnonymous ( PRBool  aAnonymous) [virtual, inherited]

Set whether this content is anonymous.

See also:
nsIAnonymousContentCreator
Parameters:
aAnonymouswhether this content is anonymous

Implements nsIContent.

Definition at line 2047 of file nsGenericElement.cpp.

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NS_IMETHODIMP nsGenericElement::SetNodeValue ( const nsAString &  aNodeValue) [inherited]

Reimplemented in nsDocumentFragment.

Definition at line 1081 of file nsGenericElement.cpp.

{
  // The DOM spec says that when nodeValue is defined to be null "setting it
  // has no effect", so we don't throw an exception.
  return NS_OK;
}
NS_IMETHODIMP nsGenericElement::SetPrefix ( const nsAString &  aPrefix) [inherited]

Reimplemented in nsDocumentFragment.

Definition at line 1212 of file nsGenericElement.cpp.

{
  // XXX: Validate the prefix string!

  nsCOMPtr<nsIAtom> prefix;

  if (!aPrefix.IsEmpty()) {
    prefix = do_GetAtom(aPrefix);
    NS_ENSURE_TRUE(prefix, NS_ERROR_OUT_OF_MEMORY);
  }

  nsCOMPtr<nsINodeInfo> newNodeInfo;
  nsresult rv = nsContentUtils::PrefixChanged(mNodeInfo, prefix,
                                              getter_AddRefs(newNodeInfo));
  NS_ENSURE_SUCCESS(rv, rv);

  mNodeInfo = newNodeInfo;

  return NS_OK;
}

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nsresult nsGenericElement::SetProperty ( nsIAtom aPropertyName,
void aValue,
NSPropertyDtorFunc  aDtor 
) [virtual, inherited]

Reimplemented from nsIContent.

Definition at line 4358 of file nsGenericElement.cpp.

{
  nsIDocument *doc = GetOwnerDoc();
  if (!doc)
    return NS_ERROR_FAILURE;

  nsresult rv = doc->PropertyTable()->SetProperty(this, aPropertyName,
                                                  aValue, aDtor, nsnull);
  if (NS_SUCCEEDED(rv))
    SetFlags(GENERIC_ELEMENT_HAS_PROPERTIES);

  return rv;
}

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PRBool nsGenericElement::ShouldFocus ( nsIContent aContent) [static, inherited]

Definition at line 2671 of file nsGenericElement.cpp.

{
  // Default to false, since if the document is not attached to a window,
  // we should not focus any of its content.
  PRBool visible = PR_FALSE;

  // Figure out if we're focusing an element in an inactive (hidden)
  // tab (whose docshell is not visible), if so, drop this focus
  // request on the floor

  nsIDocument *document = aContent->GetDocument();

  if (document) {
    nsIScriptGlobalObject *sgo = document->GetScriptGlobalObject();

    if (sgo) {
      nsCOMPtr<nsIWebNavigation> webNav(do_GetInterface(sgo));
      nsCOMPtr<nsIBaseWindow> baseWin(do_QueryInterface(webNav));

      if (baseWin) {
        baseWin->GetVisibility(&visible);
      }
    }
  }

  return visible;
}

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void nsGenericElement::Shutdown ( ) [static, inherited]

Free globals, to be called from module destructor.

Reimplemented in nsGenericHTMLElement.

Definition at line 807 of file nsGenericElement.cpp.

{
  nsDOMEventRTTearoff::Shutdown();

  if (sRangeListsHash.ops) {
    NS_ASSERTION(sRangeListsHash.entryCount == 0,
                 "nsGenericElement's range hash not empty at shutdown!");

    // We're already being shut down and if there are entries left in
    // this hash at this point it means we leaked nsGenericElements or
    // nsGenericDOMDataNodes. Since we're already partly through the
    // shutdown process it's too late to release what's held on to by
    // this hash (since the teardown code relies on some things being
    // around that aren't around any more) so we rather leak what's
    // already leaked in stead of crashing trying to release what
    // should've been released much earlier on.

    // Copy the ops out of the hash table
    PLDHashTableOps hash_table_ops = *sRangeListsHash.ops;

    // Set the clearEntry hook to be a nop
    hash_table_ops.clearEntry = NopClearEntry;

    // Set the ops in the hash table to be the new ops
    sRangeListsHash.ops = &hash_table_ops;

    PL_DHashTableFinish(&sRangeListsHash);

    sRangeListsHash.ops = nsnull;
  }

  if (sEventListenerManagersHash.ops) {
    NS_ASSERTION(sEventListenerManagersHash.entryCount == 0,
                 "nsGenericElement's event listener manager hash not empty "
                 "at shutdown!");

    // See comment above.

    // However, we have to handle this table differently.  If it still
    // has entries, we want to leak it too, so that we can keep it alive
    // in case any elements are destroyed.  Because if they are, we need
    // their event listener managers to be destroyed too, or otherwise
    // it could leave dangling references in DOMClassInfo's preserved
    // wrapper table.

    if (sEventListenerManagersHash.entryCount == 0) {
      PL_DHashTableFinish(&sEventListenerManagersHash);
      sEventListenerManagersHash.ops = nsnull;
    }
  }
}

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nsIAtom * nsGenericElement::Tag ( ) const [virtual, inherited]

Get the tag for this element.

This will always return a non-null atom pointer (as implied by the naming of the method).

Implements nsIContent.

Definition at line 2063 of file nsGenericElement.cpp.

{
  return mNodeInfo->NameAtom();
}

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nsresult nsGenericElement::TriggerLink ( nsPresContext aPresContext,
nsLinkVerb  aVerb,
nsIURI aLinkURI,
const nsAFlatString aTargetSpec,
PRBool  aClick,
PRBool  aIsUserTriggered 
) [inherited]

Trigger a link with uri aLinkURI.

If aClick is false, this triggers a mouseover on the link, otherwise it triggers a load, after doing a security check.

Parameters:
aPresContextthe pres context.
aVerbhow the link will be loaded (replace page, new window, etc.)
aLinkURIthe URI of the link
aTargetSpecthe target (like target=, may be empty)
aClickwhether this was a click or not (if false, it assumes you just hovered over the link)
aIsUserTriggeredwhether the user triggered the link. This would be false for loads from auto XLinks or from the click() method if we ever implement it.

Definition at line 3744 of file nsGenericElement.cpp.

{
  NS_PRECONDITION(aLinkURI, "No link URI");
  nsresult rv = NS_OK;

  nsIDocument* doc = GetOwnerDoc();
  nsIURI* originURI = nsnull;
  if (doc) {
    originURI = doc->GetDocumentURI();
  }
  NS_ENSURE_TRUE(originURI, NS_ERROR_FAILURE);

  nsILinkHandler *handler = aPresContext->GetLinkHandler();
  if (!handler) return NS_OK;

  if (aClick) {
    nsresult proceed = NS_OK;
    // Check that this page is allowed to load this URI.
    nsCOMPtr<nsIScriptSecurityManager> securityManager = 
             do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID, &rv);
    if (NS_SUCCEEDED(rv)) {
      PRUint32 flag = aIsUserTriggered ?
                      (PRUint32) nsIScriptSecurityManager::STANDARD :
                      (PRUint32) nsIScriptSecurityManager::DISALLOW_FROM_MAIL;
      proceed =
        securityManager->CheckLoadURI(originURI, aLinkURI, flag);
    }

    // Only pass off the click event if the script security manager
    // says it's ok.
    if (NS_SUCCEEDED(proceed))
      handler->OnLinkClick(this, aVerb, aLinkURI, aTargetSpec.get());
  } else {
    handler->OnOverLink(this, aLinkURI, aTargetSpec.get());
  }
  return rv;
}

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void nsGenericElement::UnbindFromTree ( PRBool  aDeep = PR_TRUE,
PRBool  aNullParent = PR_TRUE 
) [virtual, inherited]

Unbind this content node from a tree.

This will set its current document and binding parent to null. In the typical case of a node being removed from a parent, this will be called after it has been removed from the parent's child list and after the nsIDocumentObserver notifications for the removal have been dispatched.

Parameters:
aDeepWhether to recursively unbind the entire subtree rooted at this node. The only time PR_FALSE should be passed is when the parent node of the content is being destroyed.
aNullParentWhether to null out the parent pointer as well. This is usually desirable. This argument should only be false while recursively calling UnbindFromTree when a subtree is detached.
Note:
This method is safe to call on nodes that are not bound to a tree.

Implements nsIContent.

Reimplemented in nsGenericHTMLFrameElement, nsGenericHTMLFormElement, nsXULElement, nsHTMLInputElement, nsHTMLFormElement, nsHTMLBodyElement, nsHTMLAnchorElement, nsHTMLAreaElement, nsHTMLLinkElement, nsHTMLLabelElement, nsHTMLLegendElement, nsHTMLStyleElement, nsXTFElementWrapper, nsSVGElement, nsSVGStyleElement, and nsHTMLMapElement.

Definition at line 1990 of file nsGenericElement.cpp.

{
  NS_PRECONDITION(aDeep || (!GetCurrentDoc() && !GetBindingParent()),
                  "Shallow unbind won't clear document and binding parent on "
                  "kids!");
  // Make sure to unbind this node before doing the kids
  nsIDocument *document = GetCurrentDoc();
  if (document) {
    // Notify XBL- & nsIAnonymousContentCreator-generated
    // anonymous content that the document is changing.
    document->BindingManager()->ChangeDocumentFor(this, document, nsnull);

    if (HasAttr(kNameSpaceID_XLink, nsHTMLAtoms::href)) {
      document->ForgetLink(this);
    }

    nsCOMPtr<nsIDOMElement> domElement = do_QueryInterface(this);

    if (domElement) {
      nsCOMPtr<nsIDOMNSDocument> nsDoc = do_QueryInterface(document);
      nsDoc->SetBoxObjectFor(domElement, nsnull);
    }
  }

  // Unset things in the reverse order from how we set them in BindToTree
  mParentPtrBits &= ~PARENT_BIT_INDOCUMENT;
  
  if (aNullParent) {
    // Just mask it out
    mParentPtrBits &= nsIContent::kParentBitMask;
  }
  
  nsDOMSlots *slots = GetExistingDOMSlots();
  if (slots) {
    slots->mBindingParent = nsnull;
  }

  if (aDeep) {
    // Do the kids
    PRUint32 i, n = GetChildCount();

    for (i = 0; i < n; ++i) {
      // Note that we pass PR_FALSE for aNullParent here, since we don't want
      // the kids to forget us.  We _do_ want them to forget their binding
      // parent, though, since this only walks non-anonymous kids.
      mAttrsAndChildren.ChildAt(i)->UnbindFromTree(PR_TRUE, PR_FALSE);
    }
  }
}

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nsresult nsGenericElement::UnsetAttr ( PRInt32  aNameSpaceID,
nsIAtom aAttr,
PRBool  aNotify 
) [virtual, inherited]

Remove an attribute so that it is no longer explicitly specified.

Parameters:
aNameSpaceIDthe namespace id of the attribute
aAttrthe name of the attribute to unset
aNotifyspecifies whether or not the document and appropriate mutation event listeners should be notified of the attribute change

Implements nsIContent.

Reimplemented in nsGenericHTMLFormElement, nsXULElement, nsHTMLInputElement, nsGenericHTMLElement, nsDocumentFragment, nsHTMLOptionElement, nsHTMLAnchorElement, nsHTMLLinkElement, nsHTMLAreaElement, nsHTMLLabelElement, nsHTMLOptGroupElement, nsHTMLLegendElement, nsXTFElementWrapper, nsHTMLStyleElement, nsSVGElement, and nsSVGStyleElement.

Definition at line 4091 of file nsGenericElement.cpp.

{
  NS_ASSERTION(nsnull != aName, "must have attribute name");

  PRInt32 index = mAttrsAndChildren.IndexOfAttr(aName, aNameSpaceID);
  if (index < 0) {
    return NS_OK;
  }

  nsIDocument *document = GetCurrentDoc();    
  mozAutoDocUpdate updateBatch(document, UPDATE_CONTENT_MODEL, aNotify);

  //  we do not need to look for mutation listeners if
  //  aNotify is false, because there is no use of that knowledge then
  //  (mutation events won't be fired).
  PRBool hasMutationListeners = aNotify && document &&
    HasMutationListeners(this, NS_EVENT_BITS_MUTATION_ATTRMODIFIED);
  // Grab the attr node if needed before we remove it from the attr map
  nsCOMPtr<nsIDOMAttr> attrNode;
  
  if (document) {
    if (kNameSpaceID_XLink == aNameSpaceID && nsHTMLAtoms::href == aName) {
      // XLink URI might be changing.
      document->ForgetLink(this);
    }

    if (aNotify) {
      document->AttributeWillChange(this, aNameSpaceID, aName);
    
      if (hasMutationListeners) {
        nsAutoString attrName;
        aName->ToString(attrName);
        GetAttributeNode(attrName, getter_AddRefs(attrNode));
      }
    }
  }

  // Clear binding to nsIDOMNamedNodeMap
  nsDOMSlots *slots = GetExistingDOMSlots();
  if (slots && slots->mAttributeMap) {
    slots->mAttributeMap->DropAttribute(aNameSpaceID, aName);
  }

  nsAttrValue oldValue;
  nsresult rv = mAttrsAndChildren.RemoveAttrAt(index, oldValue);
  NS_ENSURE_SUCCESS(rv, rv);

  if (document) {
    nsRefPtr<nsXBLBinding> binding = document->BindingManager()->GetBinding(this);
    if (binding)
      binding->AttributeChanged(aName, aNameSpaceID, PR_TRUE, aNotify);

    if (aNotify) {
      document->AttributeChanged(this, aNameSpaceID, aName,
                                 nsIDOMMutationEvent::REMOVAL);

      if (hasMutationListeners) {
        nsCOMPtr<nsIDOMEventTarget> node =
          do_QueryInterface(NS_STATIC_CAST(nsIContent *, this));
        nsMutationEvent mutation(PR_TRUE, NS_MUTATION_ATTRMODIFIED, node);

        mutation.mRelatedNode = attrNode;
        mutation.mAttrName = aName;

        nsAutoString value;
        oldValue.ToString(value);
        if (!value.IsEmpty())
          mutation.mPrevAttrValue = do_GetAtom(value);
        mutation.mAttrChange = nsIDOMMutationEvent::REMOVAL;

        nsEventStatus status = nsEventStatus_eIgnore;
        HandleDOMEvent(nsnull, &mutation, nsnull,
                       NS_EVENT_FLAG_INIT, &status);
      }
    }
  }

  return NS_OK;
}

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