Making nsDOMAttributeMap a 'live' NamedNodeMap, removed the hashtable for the attributes since a) it caused the none-liveness and b) it was overkill, the number of attributes is usually so low so having a hashtable for them doesn't help much.

This commit is contained in:
jst%netscape.com 2000-04-13 23:42:52 +00:00
Родитель 5a6b64b8e6
Коммит d779768929
6 изменённых файлов: 288 добавлений и 678 удалений

Просмотреть файл

@ -180,9 +180,10 @@ nsDOMAttribute::GetValue(nsString& aValue)
if (kNameSpaceID_Unknown == nameSpaceID) {
nameSpaceID = kNameSpaceID_None; // ignore unknown prefix XXX is this correct?
}
attrResult = mContent->GetAttribute(nameSpaceID, nameAtom, mValue);
if (NS_CONTENT_ATTR_NOT_THERE == attrResult) {
mValue.Truncate();
nsAutoString tmpValue;
attrResult = mContent->GetAttribute(nameSpaceID, nameAtom, tmpValue);
if (NS_CONTENT_ATTR_NOT_THERE != attrResult) {
mValue = tmpValue;
}
NS_IF_RELEASE(nameAtom);
}

Просмотреть файл

@ -28,9 +28,6 @@
#include "nsINameSpaceManager.h"
#include "nsDOMError.h"
static NS_DEFINE_IID(kIDOMNamedNodeMapIID, NS_IDOMNAMEDNODEMAP_IID);
static NS_DEFINE_IID(kIDOMAttrIID, NS_IDOMATTR_IID);
static NS_DEFINE_IID(kIDOMAttributePrivateIID, NS_IDOMATTRIBUTEPRIVATE_IID);
//----------------------------------------------------------------------
@ -39,88 +36,25 @@ nsDOMAttributeMap::nsDOMAttributeMap(nsIContent* aContent)
{
NS_INIT_REFCNT();
mScriptObject = nsnull;
mAttributes = nsnull;
// We don't add a reference to our content. If it goes away,
// we'll be told to drop our reference
}
PR_STATIC_CALLBACK (PRIntn)
RemoveAttributes(PLHashEntry* he, PRIntn i, void* arg)
{
nsIDOMAttr* attr = (nsIDOMAttr*)he->value;
char* str = (char*)he->key;
if (nsnull != attr) {
nsIDOMAttributePrivate* attrPrivate;
attr->QueryInterface(kIDOMAttributePrivateIID, (void**)&attrPrivate);
attrPrivate->DropReference();
NS_RELEASE(attrPrivate);
NS_RELEASE(attr);
}
Recycle(str);
return HT_ENUMERATE_REMOVE;
}
PR_STATIC_CALLBACK (PRIntn)
DropReferencesInAttributes(PLHashEntry* he, PRIntn i, void* arg)
{
nsDOMAttribute* attr = (nsDOMAttribute*)he->value;
if (nsnull != attr) {
nsIDOMAttributePrivate* attrPrivate;
attr->QueryInterface(kIDOMAttributePrivateIID, (void**)&attrPrivate);
attrPrivate->DropReference();
NS_RELEASE(attrPrivate);
}
return HT_ENUMERATE_NEXT;
}
nsDOMAttributeMap::~nsDOMAttributeMap()
{
if (nsnull != mAttributes) {
PL_HashTableEnumerateEntries(mAttributes, RemoveAttributes, nsnull);
PL_HashTableDestroy(mAttributes);
}
}
void
void
nsDOMAttributeMap::DropReference()
{
mContent = nsnull;
if (nsnull != mAttributes) {
PL_HashTableEnumerateEntries(mAttributes, DropReferencesInAttributes, nsnull);
}
}
nsresult
nsDOMAttributeMap::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(kIDOMNamedNodeMapIID)) {
nsIDOMNamedNodeMap* tmp = this;
*aInstancePtr = (void*)tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kIScriptObjectOwnerIID)) {
nsIScriptObjectOwner* tmp = this;
*aInstancePtr = (void*)tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kISupportsIID)) {
nsIDOMNamedNodeMap* tmp1 = this;
nsISupports* tmp2 = tmp1;
*aInstancePtr = (void*)tmp2;
NS_ADDREF_THIS();
return NS_OK;
}
return NS_NOINTERFACE;
}
NS_INTERFACE_MAP_BEGIN(nsDOMAttributeMap)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMNamedNodeMap)
NS_INTERFACE_MAP_ENTRY(nsIDOMNamedNodeMap)
NS_INTERFACE_MAP_ENTRY(nsIScriptObjectOwner)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(nsDOMAttributeMap)
NS_IMPL_RELEASE(nsDOMAttributeMap)
@ -132,14 +66,14 @@ nsDOMAttributeMap::GetScriptObject(nsIScriptContext *aContext,
nsresult res = NS_OK;
if (nsnull == mScriptObject) {
nsIDOMScriptObjectFactory *factory;
res = nsGenericElement::GetScriptObjectFactory(&factory);
if (NS_OK != res) {
return res;
}
res = factory->NewScriptNamedNodeMap(aContext,
(nsISupports *)(nsIDOMNamedNodeMap *)this,
res = factory->NewScriptNamedNodeMap(aContext,
(nsISupports *)(nsIDOMNamedNodeMap *)this,
(nsISupports *)mContent,
(void**)&mScriptObject);
NS_RELEASE(factory);
@ -155,284 +89,165 @@ nsDOMAttributeMap::SetScriptObject(void *aScriptObject)
return NS_OK;
}
PLHashTable*
nsDOMAttributeMap::GetAttributeTable()
{
if ((nsnull == mAttributes) && (nsnull != mContent)) {
PRInt32 count;
mContent->GetAttributeCount(count);
mAttributes = PL_NewHashTable(count, PL_HashString, PL_CompareStrings,
PL_CompareValues, nsnull, nsnull);
}
return mAttributes;
}
nsresult
nsDOMAttributeMap::GetNamedItemCommon(const nsString& aAttrName,
PRInt32 aNameSpaceID,
nsIAtom* aNameAtom,
nsIDOMNode** aAttribute)
{
nsIDOMAttr* attribute;
char buf[128];
nsresult result = NS_OK;
PLHashTable* attrHash = GetAttributeTable();
aAttrName.ToCString(buf, sizeof(buf));
if (nsnull != attrHash) {
attribute = (nsIDOMAttr*)PL_HashTableLookup(attrHash, buf);
if (nsnull == attribute) {
nsresult attrResult;
nsAutoString value;
attrResult = mContent->GetAttribute(aNameSpaceID, aNameAtom, value);
if (NS_CONTENT_ATTR_NOT_THERE != attrResult) {
nsDOMAttribute* domAttribute;
domAttribute = new nsDOMAttribute(mContent, aAttrName, value);
if (nsnull == domAttribute) {
result = NS_ERROR_OUT_OF_MEMORY;
}
else {
result = domAttribute->QueryInterface(kIDOMAttrIID,
(void **)&attribute);
char* hashKey = aAttrName.ToNewCString();
PL_HashTableAdd(attrHash, hashKey, attribute);
}
}
}
}
if (nsnull != attribute) {
result = attribute->QueryInterface(kIDOMNodeIID, (void**)aAttribute);
}
else {
*aAttribute = nsnull;
}
return result;
}
void
nsDOMAttributeMap::GetNormalizedName(PRInt32 aNameSpaceID,
nsIAtom* aNameAtom,
nsString& aAttrName)
{
nsIAtom* prefix;
nsCOMPtr<nsIAtom> prefix;
aAttrName.Truncate();
mContent->GetNameSpacePrefixFromId(aNameSpaceID, prefix);
mContent->GetNameSpacePrefixFromId(aNameSpaceID, *getter_AddRefs(prefix));
if (nsnull != prefix) {
if (prefix) {
prefix->ToString(aAttrName);
aAttrName.AppendWithConversion(":");
NS_RELEASE(prefix);
}
if (nsnull != aNameAtom) {
if (aNameAtom) {
nsAutoString tmp;
aNameAtom->ToString(tmp);
aAttrName.Append(tmp);
}
}
}
nsresult
nsDOMAttributeMap::GetNamedItem(const nsString &aAttrName,
nsIDOMNode** aAttribute)
{
nsresult result = NS_OK;
if (nsnull != mContent) {
nsIAtom* nameAtom;
NS_ENSURE_ARG_POINTER(aAttribute);
*aAttribute = nsnull;
nsresult rv = NS_OK;
if (mContent) {
nsCOMPtr<nsIAtom> nameAtom;
PRInt32 nameSpaceID;
nsAutoString normalizedName;
mContent->ParseAttributeString(aAttrName, nameAtom, nameSpaceID);
mContent->ParseAttributeString(aAttrName, *getter_AddRefs(nameAtom),
nameSpaceID);
if (kNameSpaceID_Unknown == nameSpaceID) {
nameSpaceID = kNameSpaceID_None; // ignore unknown prefix XXX is this correct?
return NS_ERROR_DOM_NOT_FOUND_ERR;
}
GetNormalizedName(nameSpaceID, nameAtom, normalizedName);
result = GetNamedItemCommon(normalizedName,
nameSpaceID,
nameAtom,
aAttribute);
NS_IF_RELEASE(nameAtom);
}
else {
*aAttribute = nsnull;
nsresult attrResult;
nsAutoString value;
attrResult = mContent->GetAttribute(nameSpaceID, nameAtom, value);
if (NS_CONTENT_ATTR_NOT_THERE != attrResult && NS_SUCCEEDED(attrResult)) {
nsDOMAttribute* domAttribute;
domAttribute = new nsDOMAttribute(mContent, normalizedName, value);
if (!domAttribute) {
rv = NS_ERROR_OUT_OF_MEMORY;
}
rv = domAttribute->QueryInterface(NS_GET_IID(nsIDOMAttr),
(void **)aAttribute);
}
}
return result;
return rv;
}
nsresult
nsDOMAttributeMap::SetNamedItem(nsIDOMNode *aNode, nsIDOMNode **aReturn)
{
nsresult result = NS_OK;
nsIDOMAttr* attribute;
NS_ENSURE_ARG_POINTER(aReturn);
if (nsnull == aNode) {
if (!aNode) {
return NS_ERROR_NULL_POINTER;
}
if (nsnull != mContent) {
result = aNode->QueryInterface(kIDOMAttrIID, (void**)&attribute);
if (NS_OK == result) {
PLHashTable* attrHash;
nsresult rv = NS_OK;
*aReturn = nsnull;
attrHash = GetAttributeTable();
if (nsnull != attrHash) {
nsIDOMNode* oldAttribute;
nsIDOMAttributePrivate* attrPrivate;
nsAutoString name, value;
char buf[128];
char* key;
nsIAtom* nameAtom;
PRInt32 nameSpaceID;
if (mContent) {
nsCOMPtr<nsIDOMAttr> attribute(do_QueryInterface(aNode));
// Get normalized attribute name
attribute->GetName(name);
mContent->ParseAttributeString(name, nameAtom, nameSpaceID);
if (kNameSpaceID_Unknown == nameSpaceID) {
nameSpaceID = kNameSpaceID_None; // ignore unknown prefix XXX is this correct?
}
GetNormalizedName(nameSpaceID, nameAtom, name);
name.ToCString(buf, sizeof(buf));
result = GetNamedItemCommon(name, nameSpaceID, nameAtom, &oldAttribute);
if (!attribute) {
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
if (nsnull != oldAttribute) {
nsIDOMAttributePrivate* oldAttributePrivate;
PLHashEntry** he;
nsAutoString name, value;
nsCOMPtr<nsIAtom> nameAtom;
PRInt32 nameSpaceID;
// Remove the attribute from the hash table, cleaning
// the hash table entry as we go about it.
he = PL_HashTableRawLookup(attrHash, PL_HashString(buf), buf);
key = (char*)(*he)->key;
PL_HashTableRemove(attrHash, buf);
if (nsnull != key) {
Recycle(key);
}
result = oldAttribute->QueryInterface(kIDOMAttributePrivateIID,
(void **)&oldAttributePrivate);
if (NS_OK == result) {
oldAttributePrivate->DropReference();
NS_RELEASE(oldAttributePrivate);
}
// Get normalized attribute name
attribute->GetName(name);
mContent->ParseAttributeString(name, *getter_AddRefs(nameAtom),
nameSpaceID);
if (kNameSpaceID_Unknown == nameSpaceID) {
nameSpaceID = kNameSpaceID_None; // ignore unknown prefix XXX is this correct?
}
GetNormalizedName(nameSpaceID, nameAtom, name);
*aReturn = oldAttribute;
nsresult attrResult = mContent->GetAttribute(nameSpaceID, nameAtom, value);
// Drop the reference held in the hash table
NS_RELEASE(oldAttribute);
}
else {
*aReturn = nsnull;
}
attribute->GetValue(value);
// Associate the new attribute with the content
key = name.ToNewCString();
result = attribute->QueryInterface(kIDOMAttributePrivateIID,
(void **)&attrPrivate);
if (NS_SUCCEEDED(result)) {
nsIContent* owner;
attrPrivate->GetContent(&owner);
if (owner) {
// The old attribute is already associated with another
// piece of content.
result = NS_ERROR_DOM_INUSE_ATTRIBUTE_ERR;
NS_RELEASE(owner);
}
else {
attrPrivate->SetContent(mContent);
attrPrivate->SetName(name);
// Add the new attribute node to the hash table (maintaining
// a reference to it)
PL_HashTableAdd(attrHash, key, attribute);
// Set the attribute on the content
result = mContent->SetAttribute(nameSpaceID, nameAtom, value, PR_TRUE);
NS_IF_RELEASE(nameAtom);
}
NS_RELEASE(attrPrivate);
}
if (NS_CONTENT_ATTR_NOT_THERE != attrResult && NS_SUCCEEDED(attrResult)) {
nsDOMAttribute* domAttribute;
// We pass a null content here since the attr node we return isn't
// tied to this content anymore.
domAttribute = new nsDOMAttribute(nsnull, name, value);
if (!domAttribute) {
return NS_ERROR_OUT_OF_MEMORY;
}
rv = domAttribute->QueryInterface(NS_GET_IID(nsIDOMAttr),
(void **)aReturn);
}
else {
result = NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
attribute->GetValue(value);
rv = mContent->SetAttribute(nameSpaceID, nameAtom, value, PR_TRUE);
}
else {
*aReturn = nsnull;
}
return result;
return rv;
}
NS_IMETHODIMP
nsDOMAttributeMap::RemoveNamedItem(const nsString& aName, nsIDOMNode** aReturn)
{
nsresult result = NS_OK;
if (nsnull != mContent) {
PLHashTable* attrHash;
attrHash = GetAttributeTable();
if (nsnull != attrHash) {
nsIDOMNode* attribute;
nsIDOMAttributePrivate* attrPrivate;
char buf[128];
char* key;
nsIAtom* nameAtom;
PRInt32 nameSpaceID;
nsAutoString name;
NS_ENSURE_ARG_POINTER(aReturn);
*aReturn = nsnull;
mContent->ParseAttributeString(aName, nameAtom, nameSpaceID);
if (kNameSpaceID_Unknown == nameSpaceID) {
nameSpaceID = kNameSpaceID_None; // ignore unknown prefix XXX is this correct?
}
GetNormalizedName(nameSpaceID, nameAtom, name);
name.ToCString(buf, sizeof(buf));
result = GetNamedItemCommon(name, nameSpaceID, nameAtom, &attribute);
if (nsnull != attribute) {
PLHashEntry** he;
nsresult rv = NS_OK;
// Remove the attribute from the hash table, cleaning
// the hash table entry as we go about it.
he = PL_HashTableRawLookup(attrHash, PL_HashString(buf), buf);
key = (char*)(*he)->key;
if (mContent) {
nsCOMPtr<nsIDOMNode> attribute;
nsCOMPtr<nsIAtom> nameAtom;
PRInt32 nameSpaceID;
nsAutoString name(aName);
PL_HashTableRemove(attrHash, buf);
if (nsnull != key) {
Recycle(key);
}
result = attribute->QueryInterface(kIDOMAttributePrivateIID,
(void **)&attrPrivate);
if (NS_OK == result) {
attrPrivate->DropReference();
NS_RELEASE(attrPrivate);
}
*aReturn = attribute;
// Drop the reference held in the hash table
NS_RELEASE(attribute);
// Unset the attribute in the content
result = mContent->UnsetAttribute(nameSpaceID, nameAtom, PR_TRUE);
}
else {
result = NS_ERROR_DOM_NOT_FOUND_ERR;
*aReturn = nsnull;
}
NS_IF_RELEASE(nameAtom);
mContent->ParseAttributeString(aName, *getter_AddRefs(nameAtom),
nameSpaceID);
if (kNameSpaceID_Unknown == nameSpaceID) {
return NS_ERROR_DOM_NOT_FOUND_ERR;
}
GetNormalizedName(nameSpaceID, nameAtom, name);
nsresult attrResult;
nsAutoString value;
attrResult = mContent->GetAttribute(nameSpaceID, nameAtom, value);
if (NS_CONTENT_ATTR_NOT_THERE != attrResult && NS_SUCCEEDED(attrResult)) {
nsDOMAttribute* domAttribute;
domAttribute = new nsDOMAttribute(nsnull, name, value);
if (!domAttribute) {
return NS_ERROR_OUT_OF_MEMORY;
}
rv = domAttribute->QueryInterface(NS_GET_IID(nsIDOMAttr),
(void **)aReturn);
} else {
return NS_ERROR_DOM_NOT_FOUND_ERR;
}
rv = mContent->UnsetAttribute(nameSpaceID, nameAtom, PR_TRUE);
}
return result;
return rv;
}
@ -440,43 +255,56 @@ nsresult
nsDOMAttributeMap::Item(PRUint32 aIndex, nsIDOMNode** aReturn)
{
PRInt32 nameSpaceID;
nsIAtom* nameAtom = nsnull;
nsresult result = NS_OK;
if ((nsnull != mContent) &&
NS_SUCCEEDED(mContent->GetAttributeNameAt(aIndex,
nameSpaceID,
nameAtom))) {
nsAutoString attrName;
nsCOMPtr<nsIAtom> nameAtom;
GetNormalizedName(nameSpaceID, nameAtom, attrName);
result = GetNamedItemCommon(attrName, nameSpaceID, nameAtom, aReturn);
NS_IF_RELEASE(nameAtom);
nsresult rv = NS_OK;
if (mContent &&
NS_SUCCEEDED(mContent->GetAttributeNameAt(aIndex,
nameSpaceID,
*getter_AddRefs(nameAtom)))) {
nsAutoString value, name;
mContent->GetAttribute(nameSpaceID, nameAtom, value);
GetNormalizedName(nameSpaceID, nameAtom, name);
nsDOMAttribute* domAttribute;
domAttribute = new nsDOMAttribute(mContent, name, value);
if (!domAttribute) {
return NS_ERROR_OUT_OF_MEMORY;
}
rv = domAttribute->QueryInterface(NS_GET_IID(nsIDOMAttr),
(void **)aReturn);
}
else {
*aReturn = nsnull;
rv = NS_ERROR_DOM_INDEX_SIZE_ERR;
}
return result;
return rv;
}
nsresult
nsDOMAttributeMap::GetLength(PRUint32 *aLength)
{
NS_ENSURE_ARG_POINTER(aLength);
PRInt32 n;
nsresult rv = NS_OK;
if (nsnull != mContent) {
rv = mContent->GetAttributeCount(n);
*aLength = PRUint32(n);
}
else {
} else {
*aLength = 0;
}
return rv;
}
nsresult
nsDOMAttributeMap::GetNamedItemNS(const nsString& aNamespaceURI,
nsDOMAttributeMap::GetNamedItemNS(const nsString& aNamespaceURI,
const nsString& aLocalName,
nsIDOMNode** aReturn)
{
@ -490,7 +318,7 @@ nsDOMAttributeMap::SetNamedItemNS(nsIDOMNode* aArg, nsIDOMNode** aReturn)
}
nsresult
nsDOMAttributeMap::RemoveNamedItemNS(const nsString& aNamespaceURI,
nsDOMAttributeMap::RemoveNamedItemNS(const nsString& aNamespaceURI,
const nsString&aLocalName,
nsIDOMNode** aReturn)
{
@ -499,19 +327,6 @@ nsDOMAttributeMap::RemoveNamedItemNS(const nsString& aNamespaceURI,
#ifdef DEBUG
PR_STATIC_CALLBACK (PRIntn)
SizeAttributes(PLHashEntry* he, PRIntn i, void* arg)
{
char* str = (char*)he->key;
PRUint32 size = sizeof(PLHashEntry);
if (str) {
size += PL_strlen(str) + 1;
}
PRUint32* sump = (PRUint32*) arg;
*sump = *sump + size;
return HT_ENUMERATE_NEXT;
}
nsresult
nsDOMAttributeMap::SizeOfNamedNodeMap(nsIDOMNamedNodeMap* aMap,
nsISizeOfHandler* aSizer,
@ -520,13 +335,6 @@ nsDOMAttributeMap::SizeOfNamedNodeMap(nsIDOMNamedNodeMap* aMap,
if (!aResult) return NS_ERROR_NULL_POINTER;
nsDOMAttributeMap* map = (nsDOMAttributeMap*) aMap;
PRUint32 sum = sizeof(nsDOMAttributeMap);
if (map->mAttributes) {
sum += sizeof(*map->mAttributes);
PRUint32 esize = 0;
PL_HashTableEnumerateEntries(map->mAttributes, SizeAttributes,
(void*) &esize);
sum += esize;
}
*aResult = sum;
return NS_OK;
}

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@ -71,13 +71,9 @@ protected:
void GetNormalizedName(PRInt32 aNameSpaceID,
nsIAtom* aNameAtom,
nsString& aAttrName);
PLHashTable* GetAttributeTable();
private:
nsIContent* mContent;
// XXX We really don't need to use a hashtable here.
// We generally deal with a small number of attributes
PLHashTable* mAttributes;
void* mScriptObject;
};

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@ -180,9 +180,10 @@ nsDOMAttribute::GetValue(nsString& aValue)
if (kNameSpaceID_Unknown == nameSpaceID) {
nameSpaceID = kNameSpaceID_None; // ignore unknown prefix XXX is this correct?
}
attrResult = mContent->GetAttribute(nameSpaceID, nameAtom, mValue);
if (NS_CONTENT_ATTR_NOT_THERE == attrResult) {
mValue.Truncate();
nsAutoString tmpValue;
attrResult = mContent->GetAttribute(nameSpaceID, nameAtom, tmpValue);
if (NS_CONTENT_ATTR_NOT_THERE != attrResult) {
mValue = tmpValue;
}
NS_IF_RELEASE(nameAtom);
}

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@ -28,9 +28,6 @@
#include "nsINameSpaceManager.h"
#include "nsDOMError.h"
static NS_DEFINE_IID(kIDOMNamedNodeMapIID, NS_IDOMNAMEDNODEMAP_IID);
static NS_DEFINE_IID(kIDOMAttrIID, NS_IDOMATTR_IID);
static NS_DEFINE_IID(kIDOMAttributePrivateIID, NS_IDOMATTRIBUTEPRIVATE_IID);
//----------------------------------------------------------------------
@ -39,88 +36,25 @@ nsDOMAttributeMap::nsDOMAttributeMap(nsIContent* aContent)
{
NS_INIT_REFCNT();
mScriptObject = nsnull;
mAttributes = nsnull;
// We don't add a reference to our content. If it goes away,
// we'll be told to drop our reference
}
PR_STATIC_CALLBACK (PRIntn)
RemoveAttributes(PLHashEntry* he, PRIntn i, void* arg)
{
nsIDOMAttr* attr = (nsIDOMAttr*)he->value;
char* str = (char*)he->key;
if (nsnull != attr) {
nsIDOMAttributePrivate* attrPrivate;
attr->QueryInterface(kIDOMAttributePrivateIID, (void**)&attrPrivate);
attrPrivate->DropReference();
NS_RELEASE(attrPrivate);
NS_RELEASE(attr);
}
Recycle(str);
return HT_ENUMERATE_REMOVE;
}
PR_STATIC_CALLBACK (PRIntn)
DropReferencesInAttributes(PLHashEntry* he, PRIntn i, void* arg)
{
nsDOMAttribute* attr = (nsDOMAttribute*)he->value;
if (nsnull != attr) {
nsIDOMAttributePrivate* attrPrivate;
attr->QueryInterface(kIDOMAttributePrivateIID, (void**)&attrPrivate);
attrPrivate->DropReference();
NS_RELEASE(attrPrivate);
}
return HT_ENUMERATE_NEXT;
}
nsDOMAttributeMap::~nsDOMAttributeMap()
{
if (nsnull != mAttributes) {
PL_HashTableEnumerateEntries(mAttributes, RemoveAttributes, nsnull);
PL_HashTableDestroy(mAttributes);
}
}
void
void
nsDOMAttributeMap::DropReference()
{
mContent = nsnull;
if (nsnull != mAttributes) {
PL_HashTableEnumerateEntries(mAttributes, DropReferencesInAttributes, nsnull);
}
}
nsresult
nsDOMAttributeMap::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(kIDOMNamedNodeMapIID)) {
nsIDOMNamedNodeMap* tmp = this;
*aInstancePtr = (void*)tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kIScriptObjectOwnerIID)) {
nsIScriptObjectOwner* tmp = this;
*aInstancePtr = (void*)tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kISupportsIID)) {
nsIDOMNamedNodeMap* tmp1 = this;
nsISupports* tmp2 = tmp1;
*aInstancePtr = (void*)tmp2;
NS_ADDREF_THIS();
return NS_OK;
}
return NS_NOINTERFACE;
}
NS_INTERFACE_MAP_BEGIN(nsDOMAttributeMap)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMNamedNodeMap)
NS_INTERFACE_MAP_ENTRY(nsIDOMNamedNodeMap)
NS_INTERFACE_MAP_ENTRY(nsIScriptObjectOwner)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(nsDOMAttributeMap)
NS_IMPL_RELEASE(nsDOMAttributeMap)
@ -132,14 +66,14 @@ nsDOMAttributeMap::GetScriptObject(nsIScriptContext *aContext,
nsresult res = NS_OK;
if (nsnull == mScriptObject) {
nsIDOMScriptObjectFactory *factory;
res = nsGenericElement::GetScriptObjectFactory(&factory);
if (NS_OK != res) {
return res;
}
res = factory->NewScriptNamedNodeMap(aContext,
(nsISupports *)(nsIDOMNamedNodeMap *)this,
res = factory->NewScriptNamedNodeMap(aContext,
(nsISupports *)(nsIDOMNamedNodeMap *)this,
(nsISupports *)mContent,
(void**)&mScriptObject);
NS_RELEASE(factory);
@ -155,284 +89,165 @@ nsDOMAttributeMap::SetScriptObject(void *aScriptObject)
return NS_OK;
}
PLHashTable*
nsDOMAttributeMap::GetAttributeTable()
{
if ((nsnull == mAttributes) && (nsnull != mContent)) {
PRInt32 count;
mContent->GetAttributeCount(count);
mAttributes = PL_NewHashTable(count, PL_HashString, PL_CompareStrings,
PL_CompareValues, nsnull, nsnull);
}
return mAttributes;
}
nsresult
nsDOMAttributeMap::GetNamedItemCommon(const nsString& aAttrName,
PRInt32 aNameSpaceID,
nsIAtom* aNameAtom,
nsIDOMNode** aAttribute)
{
nsIDOMAttr* attribute;
char buf[128];
nsresult result = NS_OK;
PLHashTable* attrHash = GetAttributeTable();
aAttrName.ToCString(buf, sizeof(buf));
if (nsnull != attrHash) {
attribute = (nsIDOMAttr*)PL_HashTableLookup(attrHash, buf);
if (nsnull == attribute) {
nsresult attrResult;
nsAutoString value;
attrResult = mContent->GetAttribute(aNameSpaceID, aNameAtom, value);
if (NS_CONTENT_ATTR_NOT_THERE != attrResult) {
nsDOMAttribute* domAttribute;
domAttribute = new nsDOMAttribute(mContent, aAttrName, value);
if (nsnull == domAttribute) {
result = NS_ERROR_OUT_OF_MEMORY;
}
else {
result = domAttribute->QueryInterface(kIDOMAttrIID,
(void **)&attribute);
char* hashKey = aAttrName.ToNewCString();
PL_HashTableAdd(attrHash, hashKey, attribute);
}
}
}
}
if (nsnull != attribute) {
result = attribute->QueryInterface(kIDOMNodeIID, (void**)aAttribute);
}
else {
*aAttribute = nsnull;
}
return result;
}
void
nsDOMAttributeMap::GetNormalizedName(PRInt32 aNameSpaceID,
nsIAtom* aNameAtom,
nsString& aAttrName)
{
nsIAtom* prefix;
nsCOMPtr<nsIAtom> prefix;
aAttrName.Truncate();
mContent->GetNameSpacePrefixFromId(aNameSpaceID, prefix);
mContent->GetNameSpacePrefixFromId(aNameSpaceID, *getter_AddRefs(prefix));
if (nsnull != prefix) {
if (prefix) {
prefix->ToString(aAttrName);
aAttrName.AppendWithConversion(":");
NS_RELEASE(prefix);
}
if (nsnull != aNameAtom) {
if (aNameAtom) {
nsAutoString tmp;
aNameAtom->ToString(tmp);
aAttrName.Append(tmp);
}
}
}
nsresult
nsDOMAttributeMap::GetNamedItem(const nsString &aAttrName,
nsIDOMNode** aAttribute)
{
nsresult result = NS_OK;
if (nsnull != mContent) {
nsIAtom* nameAtom;
NS_ENSURE_ARG_POINTER(aAttribute);
*aAttribute = nsnull;
nsresult rv = NS_OK;
if (mContent) {
nsCOMPtr<nsIAtom> nameAtom;
PRInt32 nameSpaceID;
nsAutoString normalizedName;
mContent->ParseAttributeString(aAttrName, nameAtom, nameSpaceID);
mContent->ParseAttributeString(aAttrName, *getter_AddRefs(nameAtom),
nameSpaceID);
if (kNameSpaceID_Unknown == nameSpaceID) {
nameSpaceID = kNameSpaceID_None; // ignore unknown prefix XXX is this correct?
return NS_ERROR_DOM_NOT_FOUND_ERR;
}
GetNormalizedName(nameSpaceID, nameAtom, normalizedName);
result = GetNamedItemCommon(normalizedName,
nameSpaceID,
nameAtom,
aAttribute);
NS_IF_RELEASE(nameAtom);
}
else {
*aAttribute = nsnull;
nsresult attrResult;
nsAutoString value;
attrResult = mContent->GetAttribute(nameSpaceID, nameAtom, value);
if (NS_CONTENT_ATTR_NOT_THERE != attrResult && NS_SUCCEEDED(attrResult)) {
nsDOMAttribute* domAttribute;
domAttribute = new nsDOMAttribute(mContent, normalizedName, value);
if (!domAttribute) {
rv = NS_ERROR_OUT_OF_MEMORY;
}
rv = domAttribute->QueryInterface(NS_GET_IID(nsIDOMAttr),
(void **)aAttribute);
}
}
return result;
return rv;
}
nsresult
nsDOMAttributeMap::SetNamedItem(nsIDOMNode *aNode, nsIDOMNode **aReturn)
{
nsresult result = NS_OK;
nsIDOMAttr* attribute;
NS_ENSURE_ARG_POINTER(aReturn);
if (nsnull == aNode) {
if (!aNode) {
return NS_ERROR_NULL_POINTER;
}
if (nsnull != mContent) {
result = aNode->QueryInterface(kIDOMAttrIID, (void**)&attribute);
if (NS_OK == result) {
PLHashTable* attrHash;
nsresult rv = NS_OK;
*aReturn = nsnull;
attrHash = GetAttributeTable();
if (nsnull != attrHash) {
nsIDOMNode* oldAttribute;
nsIDOMAttributePrivate* attrPrivate;
nsAutoString name, value;
char buf[128];
char* key;
nsIAtom* nameAtom;
PRInt32 nameSpaceID;
if (mContent) {
nsCOMPtr<nsIDOMAttr> attribute(do_QueryInterface(aNode));
// Get normalized attribute name
attribute->GetName(name);
mContent->ParseAttributeString(name, nameAtom, nameSpaceID);
if (kNameSpaceID_Unknown == nameSpaceID) {
nameSpaceID = kNameSpaceID_None; // ignore unknown prefix XXX is this correct?
}
GetNormalizedName(nameSpaceID, nameAtom, name);
name.ToCString(buf, sizeof(buf));
result = GetNamedItemCommon(name, nameSpaceID, nameAtom, &oldAttribute);
if (!attribute) {
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
if (nsnull != oldAttribute) {
nsIDOMAttributePrivate* oldAttributePrivate;
PLHashEntry** he;
nsAutoString name, value;
nsCOMPtr<nsIAtom> nameAtom;
PRInt32 nameSpaceID;
// Remove the attribute from the hash table, cleaning
// the hash table entry as we go about it.
he = PL_HashTableRawLookup(attrHash, PL_HashString(buf), buf);
key = (char*)(*he)->key;
PL_HashTableRemove(attrHash, buf);
if (nsnull != key) {
Recycle(key);
}
result = oldAttribute->QueryInterface(kIDOMAttributePrivateIID,
(void **)&oldAttributePrivate);
if (NS_OK == result) {
oldAttributePrivate->DropReference();
NS_RELEASE(oldAttributePrivate);
}
// Get normalized attribute name
attribute->GetName(name);
mContent->ParseAttributeString(name, *getter_AddRefs(nameAtom),
nameSpaceID);
if (kNameSpaceID_Unknown == nameSpaceID) {
nameSpaceID = kNameSpaceID_None; // ignore unknown prefix XXX is this correct?
}
GetNormalizedName(nameSpaceID, nameAtom, name);
*aReturn = oldAttribute;
nsresult attrResult = mContent->GetAttribute(nameSpaceID, nameAtom, value);
// Drop the reference held in the hash table
NS_RELEASE(oldAttribute);
}
else {
*aReturn = nsnull;
}
attribute->GetValue(value);
// Associate the new attribute with the content
key = name.ToNewCString();
result = attribute->QueryInterface(kIDOMAttributePrivateIID,
(void **)&attrPrivate);
if (NS_SUCCEEDED(result)) {
nsIContent* owner;
attrPrivate->GetContent(&owner);
if (owner) {
// The old attribute is already associated with another
// piece of content.
result = NS_ERROR_DOM_INUSE_ATTRIBUTE_ERR;
NS_RELEASE(owner);
}
else {
attrPrivate->SetContent(mContent);
attrPrivate->SetName(name);
// Add the new attribute node to the hash table (maintaining
// a reference to it)
PL_HashTableAdd(attrHash, key, attribute);
// Set the attribute on the content
result = mContent->SetAttribute(nameSpaceID, nameAtom, value, PR_TRUE);
NS_IF_RELEASE(nameAtom);
}
NS_RELEASE(attrPrivate);
}
if (NS_CONTENT_ATTR_NOT_THERE != attrResult && NS_SUCCEEDED(attrResult)) {
nsDOMAttribute* domAttribute;
// We pass a null content here since the attr node we return isn't
// tied to this content anymore.
domAttribute = new nsDOMAttribute(nsnull, name, value);
if (!domAttribute) {
return NS_ERROR_OUT_OF_MEMORY;
}
rv = domAttribute->QueryInterface(NS_GET_IID(nsIDOMAttr),
(void **)aReturn);
}
else {
result = NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
attribute->GetValue(value);
rv = mContent->SetAttribute(nameSpaceID, nameAtom, value, PR_TRUE);
}
else {
*aReturn = nsnull;
}
return result;
return rv;
}
NS_IMETHODIMP
nsDOMAttributeMap::RemoveNamedItem(const nsString& aName, nsIDOMNode** aReturn)
{
nsresult result = NS_OK;
if (nsnull != mContent) {
PLHashTable* attrHash;
attrHash = GetAttributeTable();
if (nsnull != attrHash) {
nsIDOMNode* attribute;
nsIDOMAttributePrivate* attrPrivate;
char buf[128];
char* key;
nsIAtom* nameAtom;
PRInt32 nameSpaceID;
nsAutoString name;
NS_ENSURE_ARG_POINTER(aReturn);
*aReturn = nsnull;
mContent->ParseAttributeString(aName, nameAtom, nameSpaceID);
if (kNameSpaceID_Unknown == nameSpaceID) {
nameSpaceID = kNameSpaceID_None; // ignore unknown prefix XXX is this correct?
}
GetNormalizedName(nameSpaceID, nameAtom, name);
name.ToCString(buf, sizeof(buf));
result = GetNamedItemCommon(name, nameSpaceID, nameAtom, &attribute);
if (nsnull != attribute) {
PLHashEntry** he;
nsresult rv = NS_OK;
// Remove the attribute from the hash table, cleaning
// the hash table entry as we go about it.
he = PL_HashTableRawLookup(attrHash, PL_HashString(buf), buf);
key = (char*)(*he)->key;
if (mContent) {
nsCOMPtr<nsIDOMNode> attribute;
nsCOMPtr<nsIAtom> nameAtom;
PRInt32 nameSpaceID;
nsAutoString name(aName);
PL_HashTableRemove(attrHash, buf);
if (nsnull != key) {
Recycle(key);
}
result = attribute->QueryInterface(kIDOMAttributePrivateIID,
(void **)&attrPrivate);
if (NS_OK == result) {
attrPrivate->DropReference();
NS_RELEASE(attrPrivate);
}
*aReturn = attribute;
// Drop the reference held in the hash table
NS_RELEASE(attribute);
// Unset the attribute in the content
result = mContent->UnsetAttribute(nameSpaceID, nameAtom, PR_TRUE);
}
else {
result = NS_ERROR_DOM_NOT_FOUND_ERR;
*aReturn = nsnull;
}
NS_IF_RELEASE(nameAtom);
mContent->ParseAttributeString(aName, *getter_AddRefs(nameAtom),
nameSpaceID);
if (kNameSpaceID_Unknown == nameSpaceID) {
return NS_ERROR_DOM_NOT_FOUND_ERR;
}
GetNormalizedName(nameSpaceID, nameAtom, name);
nsresult attrResult;
nsAutoString value;
attrResult = mContent->GetAttribute(nameSpaceID, nameAtom, value);
if (NS_CONTENT_ATTR_NOT_THERE != attrResult && NS_SUCCEEDED(attrResult)) {
nsDOMAttribute* domAttribute;
domAttribute = new nsDOMAttribute(nsnull, name, value);
if (!domAttribute) {
return NS_ERROR_OUT_OF_MEMORY;
}
rv = domAttribute->QueryInterface(NS_GET_IID(nsIDOMAttr),
(void **)aReturn);
} else {
return NS_ERROR_DOM_NOT_FOUND_ERR;
}
rv = mContent->UnsetAttribute(nameSpaceID, nameAtom, PR_TRUE);
}
return result;
return rv;
}
@ -440,43 +255,56 @@ nsresult
nsDOMAttributeMap::Item(PRUint32 aIndex, nsIDOMNode** aReturn)
{
PRInt32 nameSpaceID;
nsIAtom* nameAtom = nsnull;
nsresult result = NS_OK;
if ((nsnull != mContent) &&
NS_SUCCEEDED(mContent->GetAttributeNameAt(aIndex,
nameSpaceID,
nameAtom))) {
nsAutoString attrName;
nsCOMPtr<nsIAtom> nameAtom;
GetNormalizedName(nameSpaceID, nameAtom, attrName);
result = GetNamedItemCommon(attrName, nameSpaceID, nameAtom, aReturn);
NS_IF_RELEASE(nameAtom);
nsresult rv = NS_OK;
if (mContent &&
NS_SUCCEEDED(mContent->GetAttributeNameAt(aIndex,
nameSpaceID,
*getter_AddRefs(nameAtom)))) {
nsAutoString value, name;
mContent->GetAttribute(nameSpaceID, nameAtom, value);
GetNormalizedName(nameSpaceID, nameAtom, name);
nsDOMAttribute* domAttribute;
domAttribute = new nsDOMAttribute(mContent, name, value);
if (!domAttribute) {
return NS_ERROR_OUT_OF_MEMORY;
}
rv = domAttribute->QueryInterface(NS_GET_IID(nsIDOMAttr),
(void **)aReturn);
}
else {
*aReturn = nsnull;
rv = NS_ERROR_DOM_INDEX_SIZE_ERR;
}
return result;
return rv;
}
nsresult
nsDOMAttributeMap::GetLength(PRUint32 *aLength)
{
NS_ENSURE_ARG_POINTER(aLength);
PRInt32 n;
nsresult rv = NS_OK;
if (nsnull != mContent) {
rv = mContent->GetAttributeCount(n);
*aLength = PRUint32(n);
}
else {
} else {
*aLength = 0;
}
return rv;
}
nsresult
nsDOMAttributeMap::GetNamedItemNS(const nsString& aNamespaceURI,
nsDOMAttributeMap::GetNamedItemNS(const nsString& aNamespaceURI,
const nsString& aLocalName,
nsIDOMNode** aReturn)
{
@ -490,7 +318,7 @@ nsDOMAttributeMap::SetNamedItemNS(nsIDOMNode* aArg, nsIDOMNode** aReturn)
}
nsresult
nsDOMAttributeMap::RemoveNamedItemNS(const nsString& aNamespaceURI,
nsDOMAttributeMap::RemoveNamedItemNS(const nsString& aNamespaceURI,
const nsString&aLocalName,
nsIDOMNode** aReturn)
{
@ -499,19 +327,6 @@ nsDOMAttributeMap::RemoveNamedItemNS(const nsString& aNamespaceURI,
#ifdef DEBUG
PR_STATIC_CALLBACK (PRIntn)
SizeAttributes(PLHashEntry* he, PRIntn i, void* arg)
{
char* str = (char*)he->key;
PRUint32 size = sizeof(PLHashEntry);
if (str) {
size += PL_strlen(str) + 1;
}
PRUint32* sump = (PRUint32*) arg;
*sump = *sump + size;
return HT_ENUMERATE_NEXT;
}
nsresult
nsDOMAttributeMap::SizeOfNamedNodeMap(nsIDOMNamedNodeMap* aMap,
nsISizeOfHandler* aSizer,
@ -520,13 +335,6 @@ nsDOMAttributeMap::SizeOfNamedNodeMap(nsIDOMNamedNodeMap* aMap,
if (!aResult) return NS_ERROR_NULL_POINTER;
nsDOMAttributeMap* map = (nsDOMAttributeMap*) aMap;
PRUint32 sum = sizeof(nsDOMAttributeMap);
if (map->mAttributes) {
sum += sizeof(*map->mAttributes);
PRUint32 esize = 0;
PL_HashTableEnumerateEntries(map->mAttributes, SizeAttributes,
(void*) &esize);
sum += esize;
}
*aResult = sum;
return NS_OK;
}

Просмотреть файл

@ -71,13 +71,9 @@ protected:
void GetNormalizedName(PRInt32 aNameSpaceID,
nsIAtom* aNameAtom,
nsString& aAttrName);
PLHashTable* GetAttributeTable();
private:
nsIContent* mContent;
// XXX We really don't need to use a hashtable here.
// We generally deal with a small number of attributes
PLHashTable* mAttributes;
void* mScriptObject;
};