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Implementing nsIDOMXULElement and moving broadcaster stuff over to nsRDFResourceElement

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git-svn-id: svn://10.0.0.236/branches/RDFDOM_19990216_BRANCH@20878 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
hyatt%netscape.com
1999-02-17 03:53:05 +00:00
parent a13f4f72a8
commit 365c530406
2 changed files with 108 additions and 15 deletions
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19
mozilla/rdf/content/src/nsRDFGenericElement.cpp
View File

@@ -160,13 +160,11 @@ public:
virtual PRBool Convert(JSContext *aContext, jsval aID);
virtual void Finalize(JSContext *aContext);
// nsIDOMXULElement
NS_IMETHOD DoCommand();
// nsIDOMXULElement
NS_IMETHOD DoCommand();
NS_IMETHOD AddBroadcastListener(const nsString& attr, nsIDOMNode* aNode);
NS_IMETHOD RemoveBroadcastListener(const nsString& attr, nsIDOMNode* aNode);
NS_IMETHOD GetNodeWithID(const nsString& id, nsIDOMNode** aNode);
NS_IMETHOD AddBroadcastListener(const nsString& attr, nsIDOMNode* aNode);
NS_IMETHOD RemoveBroadcastListener(const nsString& attr, nsIDOMNode* aNode);
protected:
/** The document in which the element lives. */
@@ -273,7 +271,8 @@ RDFGenericElementImpl::QueryInterface(REFNSIID iid, void** result)
*result = NS_STATIC_CAST(nsIContent*, this);
}
else if (iid.Equals(kIDOMElementIID) ||
iid.Equals(kIDOMNodeIID)) {
iid.Equals(kIDOMNodeIID) ||
iid.Equals(nsIDOMXULElement::IID())) {
*result = NS_STATIC_CAST(nsIDOMElement*, this);
}
else if (iid.Equals(kIScriptObjectOwnerIID)) {
@@ -1357,9 +1356,3 @@ RDFGenericElementImpl::RemoveBroadcastListener(const nsString& attr, nsIDOMNode*
return NS_OK;
}
NS_IMETHODIMP
RDFGenericElementImpl::GetNodeWithID(const nsString& id, nsIDOMNode** node)
{
return NS_OK;
}

104
mozilla/rdf/content/src/nsRDFResourceElement.cpp
View File

@@ -75,6 +75,10 @@
#include "nsRDFContentUtils.h"
#include "nsRDFDOMNodeList.h"
// The XUL interfaces implemented by the RDF content node.
#include "nsIDOMXULElement.h"
// End of XUL interface includes
////////////////////////////////////////////////////////////////////////
static NS_DEFINE_IID(kIContentIID, NS_ICONTENT_IID);
@@ -99,10 +103,20 @@ static NS_DEFINE_CID(kEventListenerManagerCID, NS_EVENTLISTENERMANAGER_CID);
static NS_DEFINE_CID(kNameSpaceManagerCID, NS_NAMESPACEMANAGER_CID);
static NS_DEFINE_CID(kRDFServiceCID, NS_RDFSERVICE_CID);
struct XULBroadcastListener
{
nsString mAttribute;
nsCOMPtr<nsIDOMNode> mListener;
XULBroadcastListener(const nsString& attr, nsIDOMNode* listen)
: mAttribute(attr), mListener(listen)
{ // Nothing else to do
}
};
////////////////////////////////////////////////////////////////////////
class RDFResourceElementImpl : public nsIDOMElement,
class RDFResourceElementImpl : public nsIDOMXULElement,
public nsIDOMEventReceiver,
public nsIScriptObjectOwner,
public nsIJSScriptObject,
@@ -199,6 +213,12 @@ public:
virtual PRBool Convert(JSContext *aContext, jsval aID);
virtual void Finalize(JSContext *aContext);
// nsIDOMXULElement
NS_IMETHOD DoCommand();
NS_IMETHOD AddBroadcastListener(const nsString& attr, nsIDOMNode* aNode);
NS_IMETHOD RemoveBroadcastListener(const nsString& attr, nsIDOMNode* aNode);
protected:
/** The document in which the element lives. */
nsIDocument* mDocument;
@@ -233,6 +253,12 @@ protected:
* Dynamically generate the element's children from the RDF graph
*/
nsresult EnsureContentsGenerated(void) const;
/** A pointer to a broadcaster. Only non-null if we are observing someone. **/
nsIDOMNode* mBroadcaster;
/** An array of broadcast listeners. **/
nsVoidArray mBroadcastListeners;
};
////////////////////////////////////////////////////////////////////////
@@ -253,7 +279,8 @@ RDFResourceElementImpl::RDFResourceElementImpl(nsIRDFResource* aResource,
mListenerManager(nsnull),
mAttributes(nsnull),
mResource(aResource),
mContentsMustBeGenerated(PR_FALSE)
mContentsMustBeGenerated(PR_FALSE),
mBroadcaster(nsnull)
{
NS_INIT_REFCNT();
NS_ADDREF(aResource);
@@ -307,6 +334,14 @@ RDFResourceElementImpl::~RDFResourceElementImpl()
nsrefcnt refcnt;
NS_RELEASE2(kIdAtom, refcnt);
// Release our broadcast listeners
PRInt32 count = mBroadcastListeners.Count();
for (PRInt32 i = 0; i < count; i++)
{
XULBroadcastListener* xulListener = (XULBroadcastListener*)mBroadcastListeners[0];
RemoveBroadcastListener(xulListener->mAttribute, xulListener->mListener);
}
}
@@ -1700,4 +1735,69 @@ RDFResourceElementImpl::EnsureContentsGenerated(void) const
return rv;
}
// nsIDOMXULElement
NS_IMETHODIMP
RDFResourceElementImpl::DoCommand()
{
return NS_OK;
}
NS_IMETHODIMP
RDFResourceElementImpl::AddBroadcastListener(const nsString& attr, nsIDOMNode* aNode)
{
// Add ourselves to the array.
NS_ADDREF(aNode);
mBroadcastListeners.AppendElement(new XULBroadcastListener(attr, aNode));
// We need to sync up the initial attribute value.
nsCOMPtr<nsIContent> pListener(aNode);
// Retrieve our namespace
PRInt32 namespaceID;
GetNameSpaceID(namespaceID);
// Find out if the attribute is even present at all.
nsString attrValue;
nsIAtom* kAtom = NS_NewAtom(attr);
nsresult result = GetAttribute(namespaceID, kAtom, attrValue);
PRBool attrPresent = (result == NS_CONTENT_ATTR_NO_VALUE ||
result == NS_CONTENT_ATTR_HAS_VALUE);
if (attrPresent)
{
// Set the attribute
pListener->SetAttribute(namespaceID, kAtom, attrValue, PR_TRUE);
}
else
{
// Unset the attribute
pListener->UnsetAttribute(namespaceID, kAtom, PR_TRUE);
}
NS_RELEASE(kAtom);
return NS_OK;
}
NS_IMETHODIMP
RDFResourceElementImpl::RemoveBroadcastListener(const nsString& attr, nsIDOMNode* aNode)
{
// Find the node.
PRInt32 count = mBroadcastListeners.Count();
for (PRInt32 i = 0; i < count; i++)
{
XULBroadcastListener* xulListener = (XULBroadcastListener*)mBroadcastListeners[i];
if (xulListener->mAttribute == attr &&
xulListener->mListener == aNode)
{
// Do the removal.
mBroadcastListeners.RemoveElementAt(i);
delete xulListener;
return NS_OK;
}
}
return NS_OK;
}