зеркало из https://github.com/mozilla/gecko-dev.git
Land RDF_19990426_BRANCH, which extracted some static C++ routines for manipulating RDF containers into bona fide interfaces. Also, fix a memory leak in the nsElementMap: be sure to hold a reference to the resource that is the key.
This commit is contained in:
waterson%netscape.com
Родитель
472f414c2b
Коммит
3f3dced3eb
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@ -139,6 +139,7 @@ static NS_DEFINE_CID(kPresShellCID, NS_PRESSHELL_CID);
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static NS_DEFINE_CID(kRDFCompositeDataSourceCID, NS_RDFCOMPOSITEDATASOURCE_CID);
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static NS_DEFINE_CID(kRDFInMemoryDataSourceCID, NS_RDFINMEMORYDATASOURCE_CID);
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static NS_DEFINE_CID(kLocalStoreCID, NS_LOCALSTORE_CID);
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static NS_DEFINE_CID(kRDFContainerUtilsCID, NS_RDFCONTAINERUTILS_CID);
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static NS_DEFINE_CID(kRDFServiceCID, NS_RDFSERVICE_CID);
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static NS_DEFINE_CID(kRDFXMLDataSourceCID, NS_RDFXMLDATASOURCE_CID);
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static NS_DEFINE_CID(kRDFXULBuilderCID, NS_RDFXULBUILDER_CID);
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@ -188,145 +189,173 @@ private:
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}
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static PRIntn
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ReleaseContentList(PLHashEntry* he, PRIntn index, void* closure)
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{
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ContentListItem* head =
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(ContentListItem*) he->value;
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while (head) {
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ContentListItem* doomed = head;
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head = head->mNext;
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delete doomed;
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}
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return HT_ENUMERATE_NEXT;
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}
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ReleaseContentList(PLHashEntry* he, PRIntn index, void* closure);
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public:
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nsElementMap(void)
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{
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// Create a table for mapping RDF resources to elements in the
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// content tree.
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static PRInt32 kInitialResourceTableSize = 1023;
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if ((mResources = PL_NewHashTable(kInitialResourceTableSize,
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HashPointer,
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PL_CompareValues,
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PL_CompareValues,
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nsnull,
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nsnull)) == nsnull) {
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NS_ERROR("could not create hash table for resources");
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}
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}
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virtual ~nsElementMap()
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{
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if (mResources) {
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PL_HashTableEnumerateEntries(mResources, ReleaseContentList, nsnull);
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PL_HashTableDestroy(mResources);
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}
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}
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nsElementMap(void);
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virtual ~nsElementMap();
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nsresult
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Add(nsIRDFResource* aResource, nsIContent* aContent)
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{
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NS_PRECONDITION(mResources != nsnull, "not initialized");
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if (! mResources)
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return NS_ERROR_NOT_INITIALIZED;
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ContentListItem* head =
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(ContentListItem*) PL_HashTableLookup(mResources, aResource);
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if (! head) {
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head = new ContentListItem(aContent);
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if (! head)
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return NS_ERROR_OUT_OF_MEMORY;
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PL_HashTableAdd(mResources, aResource, head);
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}
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else {
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while (1) {
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if (head->mContent == aContent) {
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NS_ERROR("attempt to add same element twice");
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return NS_ERROR_ILLEGAL_VALUE;
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}
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if (! head->mNext)
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break;
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head = head->mNext;
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}
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head->mNext = new ContentListItem(aContent);
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if (! head->mNext)
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return NS_OK;
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}
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Add(nsIRDFResource* aResource, nsIContent* aContent);
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nsresult
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Remove(nsIRDFResource* aResource, nsIContent* aContent)
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{
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NS_PRECONDITION(mResources != nsnull, "not initialized");
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if (! mResources)
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return NS_ERROR_NOT_INITIALIZED;
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ContentListItem* head =
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(ContentListItem*) PL_HashTableLookup(mResources, aResource);
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if (head) {
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if (head->mContent == aContent) {
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ContentListItem* newHead = head->mNext;
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if (newHead) {
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PL_HashTableAdd(mResources, aResource, newHead);
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}
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else {
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PL_HashTableRemove(mResources, aResource);
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}
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delete head;
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return NS_OK;
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}
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else {
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ContentListItem* doomed = head->mNext;
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while (doomed) {
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if (doomed->mContent == aContent) {
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head->mNext = doomed->mNext;
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delete doomed;
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return NS_OK;
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}
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head = doomed;
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doomed = doomed->mNext;
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}
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}
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}
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// XXX Don't comment out this assert: if you get here,
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// something has gone dreadfully, horribly
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// wrong. Curse. Scream. File a bug against
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// waterson@netscape.com.
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NS_ERROR("attempt to remove an element that was never added");
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return NS_ERROR_ILLEGAL_VALUE;
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}
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Remove(nsIRDFResource* aResource, nsIContent* aContent);
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nsresult
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Find(nsIRDFResource* aResource, nsISupportsArray* aResults)
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{
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NS_PRECONDITION(mResources != nsnull, "not initialized");
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if (! mResources)
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return NS_ERROR_NOT_INITIALIZED;
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aResults->Clear();
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ContentListItem* head =
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(ContentListItem*) PL_HashTableLookup(mResources, aResource);
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while (head) {
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aResults->AppendElement(head->mContent);
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head = head->mNext;
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}
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return NS_OK;
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}
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Find(nsIRDFResource* aResource, nsISupportsArray* aResults);
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};
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nsElementMap::nsElementMap()
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{
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// Create a table for mapping RDF resources to elements in the
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// content tree.
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static PRInt32 kInitialResourceTableSize = 1023;
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if ((mResources = PL_NewHashTable(kInitialResourceTableSize,
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HashPointer,
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PL_CompareValues,
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PL_CompareValues,
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nsnull,
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nsnull)) == nsnull) {
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NS_ERROR("could not create hash table for resources");
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}
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}
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nsElementMap::~nsElementMap()
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{
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if (mResources) {
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PL_HashTableEnumerateEntries(mResources, ReleaseContentList, nsnull);
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PL_HashTableDestroy(mResources);
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}
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}
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PRIntn
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nsElementMap::ReleaseContentList(PLHashEntry* he, PRIntn index, void* closure)
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{
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nsIRDFResource* resource =
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NS_REINTERPRET_CAST(nsIRDFResource*, NS_CONST_CAST(void*, he->key));
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NS_RELEASE(resource);
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ContentListItem* head =
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(ContentListItem*) he->value;
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while (head) {
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ContentListItem* doomed = head;
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head = head->mNext;
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delete doomed;
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}
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return HT_ENUMERATE_NEXT;
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}
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nsresult
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nsElementMap::Add(nsIRDFResource* aResource, nsIContent* aContent)
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{
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NS_PRECONDITION(mResources != nsnull, "not initialized");
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if (! mResources)
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return NS_ERROR_NOT_INITIALIZED;
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ContentListItem* head =
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(ContentListItem*) PL_HashTableLookup(mResources, aResource);
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if (! head) {
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head = new ContentListItem(aContent);
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if (! head)
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return NS_ERROR_OUT_OF_MEMORY;
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PL_HashTableAdd(mResources, aResource, head);
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NS_ADDREF(aResource);
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}
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else {
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while (1) {
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if (head->mContent == aContent) {
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NS_ERROR("attempt to add same element twice");
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return NS_ERROR_ILLEGAL_VALUE;
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}
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if (! head->mNext)
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break;
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head = head->mNext;
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}
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head->mNext = new ContentListItem(aContent);
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if (! head->mNext)
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return NS_OK;
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}
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nsresult
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nsElementMap::Remove(nsIRDFResource* aResource, nsIContent* aContent)
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{
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NS_PRECONDITION(mResources != nsnull, "not initialized");
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if (! mResources)
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return NS_ERROR_NOT_INITIALIZED;
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ContentListItem* head =
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(ContentListItem*) PL_HashTableLookup(mResources, aResource);
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if (head) {
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if (head->mContent == aContent) {
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ContentListItem* newHead = head->mNext;
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if (newHead) {
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PL_HashTableAdd(mResources, aResource, newHead);
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}
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else {
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// It was the last reference in the table
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PL_HashTableRemove(mResources, aResource);
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NS_RELEASE(aResource);
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}
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delete head;
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return NS_OK;
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}
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else {
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ContentListItem* doomed = head->mNext;
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while (doomed) {
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if (doomed->mContent == aContent) {
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head->mNext = doomed->mNext;
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delete doomed;
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return NS_OK;
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}
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head = doomed;
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doomed = doomed->mNext;
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}
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}
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}
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// XXX Don't comment out this assert: if you get here,
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// something has gone dreadfully, horribly
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// wrong. Curse. Scream. File a bug against
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// waterson@netscape.com.
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NS_ERROR("attempt to remove an element that was never added");
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return NS_ERROR_ILLEGAL_VALUE;
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}
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nsresult
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nsElementMap::Find(nsIRDFResource* aResource, nsISupportsArray* aResults)
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{
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NS_PRECONDITION(mResources != nsnull, "not initialized");
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if (! mResources)
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return NS_ERROR_NOT_INITIALIZED;
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aResults->Clear();
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ContentListItem* head =
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(ContentListItem*) PL_HashTableLookup(mResources, aResource);
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while (head) {
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aResults->AppendElement(head->mContent);
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head = head->mNext;
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}
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return NS_OK;
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}
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////////////////////////////////////////////////////////////////////////
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// XULDocumentImpl
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@ -2434,9 +2463,14 @@ XULDocumentImpl::CreateElement(const nsString& aTagName, nsIDOMElement** aReturn
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NS_ASSERTION(rv == NS_OK, "unable to mark as XUL element");
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if (NS_FAILED(rv)) return rv;
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rv = rdf_MakeSeq(mDocumentDataSource, resource);
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NS_ASSERTION(rv == NS_OK, "unable to mark as XUL element");
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if (NS_FAILED(rv)) return rv;
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{
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NS_WITH_SERVICE(nsIRDFContainerUtils, rdfc, kRDFContainerUtilsCID, &rv);
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if (NS_FAILED(rv)) return rv;
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rv = rdfc->MakeSeq(mDocumentDataSource, resource, nsnull);
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NS_ASSERTION(rv == NS_OK, "unable to mark as XUL element");
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if (NS_FAILED(rv)) return rv;
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}
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// `this' will be its document
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rv = result->SetDocument(this, PR_FALSE);
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@ -139,6 +139,7 @@ static NS_DEFINE_CID(kPresShellCID, NS_PRESSHELL_CID);
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static NS_DEFINE_CID(kRDFCompositeDataSourceCID, NS_RDFCOMPOSITEDATASOURCE_CID);
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static NS_DEFINE_CID(kRDFInMemoryDataSourceCID, NS_RDFINMEMORYDATASOURCE_CID);
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static NS_DEFINE_CID(kLocalStoreCID, NS_LOCALSTORE_CID);
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static NS_DEFINE_CID(kRDFContainerUtilsCID, NS_RDFCONTAINERUTILS_CID);
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static NS_DEFINE_CID(kRDFServiceCID, NS_RDFSERVICE_CID);
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static NS_DEFINE_CID(kRDFXMLDataSourceCID, NS_RDFXMLDATASOURCE_CID);
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static NS_DEFINE_CID(kRDFXULBuilderCID, NS_RDFXULBUILDER_CID);
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|
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@ -188,145 +189,173 @@ private:
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}
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|
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static PRIntn
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ReleaseContentList(PLHashEntry* he, PRIntn index, void* closure)
|
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{
|
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ContentListItem* head =
|
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(ContentListItem*) he->value;
|
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|
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while (head) {
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ContentListItem* doomed = head;
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head = head->mNext;
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delete doomed;
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}
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return HT_ENUMERATE_NEXT;
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}
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ReleaseContentList(PLHashEntry* he, PRIntn index, void* closure);
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public:
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nsElementMap(void)
|
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{
|
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// Create a table for mapping RDF resources to elements in the
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// content tree.
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static PRInt32 kInitialResourceTableSize = 1023;
|
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if ((mResources = PL_NewHashTable(kInitialResourceTableSize,
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HashPointer,
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PL_CompareValues,
|
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PL_CompareValues,
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nsnull,
|
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nsnull)) == nsnull) {
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NS_ERROR("could not create hash table for resources");
|
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}
|
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}
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virtual ~nsElementMap()
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{
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if (mResources) {
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PL_HashTableEnumerateEntries(mResources, ReleaseContentList, nsnull);
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PL_HashTableDestroy(mResources);
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}
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}
|
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nsElementMap(void);
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virtual ~nsElementMap();
|
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|
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nsresult
|
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Add(nsIRDFResource* aResource, nsIContent* aContent)
|
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{
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NS_PRECONDITION(mResources != nsnull, "not initialized");
|
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if (! mResources)
|
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return NS_ERROR_NOT_INITIALIZED;
|
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|
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ContentListItem* head =
|
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(ContentListItem*) PL_HashTableLookup(mResources, aResource);
|
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|
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if (! head) {
|
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head = new ContentListItem(aContent);
|
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if (! head)
|
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return NS_ERROR_OUT_OF_MEMORY;
|
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|
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PL_HashTableAdd(mResources, aResource, head);
|
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}
|
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else {
|
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while (1) {
|
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if (head->mContent == aContent) {
|
||||
NS_ERROR("attempt to add same element twice");
|
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return NS_ERROR_ILLEGAL_VALUE;
|
||||
}
|
||||
if (! head->mNext)
|
||||
break;
|
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|
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head = head->mNext;
|
||||
}
|
||||
|
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head->mNext = new ContentListItem(aContent);
|
||||
if (! head->mNext)
|
||||
return NS_ERROR_OUT_OF_MEMORY;
|
||||
}
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
Add(nsIRDFResource* aResource, nsIContent* aContent);
|
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|
||||
nsresult
|
||||
Remove(nsIRDFResource* aResource, nsIContent* aContent)
|
||||
{
|
||||
NS_PRECONDITION(mResources != nsnull, "not initialized");
|
||||
if (! mResources)
|
||||
return NS_ERROR_NOT_INITIALIZED;
|
||||
|
||||
ContentListItem* head =
|
||||
(ContentListItem*) PL_HashTableLookup(mResources, aResource);
|
||||
|
||||
if (head) {
|
||||
if (head->mContent == aContent) {
|
||||
ContentListItem* newHead = head->mNext;
|
||||
if (newHead) {
|
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PL_HashTableAdd(mResources, aResource, newHead);
|
||||
}
|
||||
else {
|
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PL_HashTableRemove(mResources, aResource);
|
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}
|
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delete head;
|
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return NS_OK;
|
||||
}
|
||||
else {
|
||||
ContentListItem* doomed = head->mNext;
|
||||
while (doomed) {
|
||||
if (doomed->mContent == aContent) {
|
||||
head->mNext = doomed->mNext;
|
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delete doomed;
|
||||
return NS_OK;
|
||||
}
|
||||
head = doomed;
|
||||
doomed = doomed->mNext;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// XXX Don't comment out this assert: if you get here,
|
||||
// something has gone dreadfully, horribly
|
||||
// wrong. Curse. Scream. File a bug against
|
||||
// waterson@netscape.com.
|
||||
NS_ERROR("attempt to remove an element that was never added");
|
||||
return NS_ERROR_ILLEGAL_VALUE;
|
||||
}
|
||||
Remove(nsIRDFResource* aResource, nsIContent* aContent);
|
||||
|
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nsresult
|
||||
Find(nsIRDFResource* aResource, nsISupportsArray* aResults)
|
||||
{
|
||||
NS_PRECONDITION(mResources != nsnull, "not initialized");
|
||||
if (! mResources)
|
||||
return NS_ERROR_NOT_INITIALIZED;
|
||||
|
||||
aResults->Clear();
|
||||
ContentListItem* head =
|
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(ContentListItem*) PL_HashTableLookup(mResources, aResource);
|
||||
|
||||
while (head) {
|
||||
aResults->AppendElement(head->mContent);
|
||||
head = head->mNext;
|
||||
}
|
||||
return NS_OK;
|
||||
}
|
||||
Find(nsIRDFResource* aResource, nsISupportsArray* aResults);
|
||||
};
|
||||
|
||||
|
||||
nsElementMap::nsElementMap()
|
||||
{
|
||||
// Create a table for mapping RDF resources to elements in the
|
||||
// content tree.
|
||||
static PRInt32 kInitialResourceTableSize = 1023;
|
||||
if ((mResources = PL_NewHashTable(kInitialResourceTableSize,
|
||||
HashPointer,
|
||||
PL_CompareValues,
|
||||
PL_CompareValues,
|
||||
nsnull,
|
||||
nsnull)) == nsnull) {
|
||||
NS_ERROR("could not create hash table for resources");
|
||||
}
|
||||
}
|
||||
|
||||
nsElementMap::~nsElementMap()
|
||||
{
|
||||
if (mResources) {
|
||||
PL_HashTableEnumerateEntries(mResources, ReleaseContentList, nsnull);
|
||||
PL_HashTableDestroy(mResources);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
PRIntn
|
||||
nsElementMap::ReleaseContentList(PLHashEntry* he, PRIntn index, void* closure)
|
||||
{
|
||||
nsIRDFResource* resource =
|
||||
NS_REINTERPRET_CAST(nsIRDFResource*, NS_CONST_CAST(void*, he->key));
|
||||
|
||||
NS_RELEASE(resource);
|
||||
|
||||
ContentListItem* head =
|
||||
(ContentListItem*) he->value;
|
||||
|
||||
while (head) {
|
||||
ContentListItem* doomed = head;
|
||||
head = head->mNext;
|
||||
delete doomed;
|
||||
}
|
||||
|
||||
return HT_ENUMERATE_NEXT;
|
||||
}
|
||||
|
||||
|
||||
nsresult
|
||||
nsElementMap::Add(nsIRDFResource* aResource, nsIContent* aContent)
|
||||
{
|
||||
NS_PRECONDITION(mResources != nsnull, "not initialized");
|
||||
if (! mResources)
|
||||
return NS_ERROR_NOT_INITIALIZED;
|
||||
|
||||
ContentListItem* head =
|
||||
(ContentListItem*) PL_HashTableLookup(mResources, aResource);
|
||||
|
||||
if (! head) {
|
||||
head = new ContentListItem(aContent);
|
||||
if (! head)
|
||||
return NS_ERROR_OUT_OF_MEMORY;
|
||||
|
||||
PL_HashTableAdd(mResources, aResource, head);
|
||||
NS_ADDREF(aResource);
|
||||
}
|
||||
else {
|
||||
while (1) {
|
||||
if (head->mContent == aContent) {
|
||||
NS_ERROR("attempt to add same element twice");
|
||||
return NS_ERROR_ILLEGAL_VALUE;
|
||||
}
|
||||
if (! head->mNext)
|
||||
break;
|
||||
|
||||
head = head->mNext;
|
||||
}
|
||||
|
||||
head->mNext = new ContentListItem(aContent);
|
||||
if (! head->mNext)
|
||||
return NS_ERROR_OUT_OF_MEMORY;
|
||||
}
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
nsresult
|
||||
nsElementMap::Remove(nsIRDFResource* aResource, nsIContent* aContent)
|
||||
{
|
||||
NS_PRECONDITION(mResources != nsnull, "not initialized");
|
||||
if (! mResources)
|
||||
return NS_ERROR_NOT_INITIALIZED;
|
||||
|
||||
ContentListItem* head =
|
||||
(ContentListItem*) PL_HashTableLookup(mResources, aResource);
|
||||
|
||||
if (head) {
|
||||
if (head->mContent == aContent) {
|
||||
ContentListItem* newHead = head->mNext;
|
||||
if (newHead) {
|
||||
PL_HashTableAdd(mResources, aResource, newHead);
|
||||
}
|
||||
else {
|
||||
// It was the last reference in the table
|
||||
PL_HashTableRemove(mResources, aResource);
|
||||
NS_RELEASE(aResource);
|
||||
}
|
||||
delete head;
|
||||
return NS_OK;
|
||||
}
|
||||
else {
|
||||
ContentListItem* doomed = head->mNext;
|
||||
while (doomed) {
|
||||
if (doomed->mContent == aContent) {
|
||||
head->mNext = doomed->mNext;
|
||||
delete doomed;
|
||||
return NS_OK;
|
||||
}
|
||||
head = doomed;
|
||||
doomed = doomed->mNext;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// XXX Don't comment out this assert: if you get here,
|
||||
// something has gone dreadfully, horribly
|
||||
// wrong. Curse. Scream. File a bug against
|
||||
// waterson@netscape.com.
|
||||
NS_ERROR("attempt to remove an element that was never added");
|
||||
return NS_ERROR_ILLEGAL_VALUE;
|
||||
}
|
||||
|
||||
|
||||
|
||||
nsresult
|
||||
nsElementMap::Find(nsIRDFResource* aResource, nsISupportsArray* aResults)
|
||||
{
|
||||
NS_PRECONDITION(mResources != nsnull, "not initialized");
|
||||
if (! mResources)
|
||||
return NS_ERROR_NOT_INITIALIZED;
|
||||
|
||||
aResults->Clear();
|
||||
ContentListItem* head =
|
||||
(ContentListItem*) PL_HashTableLookup(mResources, aResource);
|
||||
|
||||
while (head) {
|
||||
aResults->AppendElement(head->mContent);
|
||||
head = head->mNext;
|
||||
}
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
////////////////////////////////////////////////////////////////////////
|
||||
// XULDocumentImpl
|
||||
|
|
@ -2434,9 +2463,14 @@ XULDocumentImpl::CreateElement(const nsString& aTagName, nsIDOMElement** aReturn
|
|||
NS_ASSERTION(rv == NS_OK, "unable to mark as XUL element");
|
||||
if (NS_FAILED(rv)) return rv;
|
||||
|
||||
rv = rdf_MakeSeq(mDocumentDataSource, resource);
|
||||
NS_ASSERTION(rv == NS_OK, "unable to mark as XUL element");
|
||||
if (NS_FAILED(rv)) return rv;
|
||||
{
|
||||
NS_WITH_SERVICE(nsIRDFContainerUtils, rdfc, kRDFContainerUtilsCID, &rv);
|
||||
if (NS_FAILED(rv)) return rv;
|
||||
|
||||
rv = rdfc->MakeSeq(mDocumentDataSource, resource, nsnull);
|
||||
NS_ASSERTION(rv == NS_OK, "unable to mark as XUL element");
|
||||
if (NS_FAILED(rv)) return rv;
|
||||
}
|
||||
|
||||
// `this' will be its document
|
||||
rv = result->SetDocument(this, PR_FALSE);
|
||||
|
|
|
|||
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