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gecko-dev
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Fix silent failure from JS on firstChild. Clean up other baby-eating methods.

This commit is contained in:
waterson%netscape.com 1999-08-04 02:26:26 +00:00
Родитель 018b98b1b3
Коммит 0035d5bbb3
3 изменённых файлов: 138 добавлений и 135 удалений
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91
content/xul/content/src/nsXULElement.cpp
Просмотреть файл

@ -653,26 +653,28 @@ RDFElementImpl::GetChildNodes(nsIDOMNodeList** aChildNodes)
if (NS_FAILED(rv)) return rv;
PRInt32 count;
if (NS_SUCCEEDED(rv = ChildCount(count))) {
for (PRInt32 i = 0; i < count; ++i) {
nsCOMPtr<nsIContent> child;
rv = ChildAt(i, *getter_AddRefs(child));
NS_ASSERTION(NS_SUCCEEDED(rv), "unable to get child");
if (NS_FAILED(rv))
break;
rv = ChildCount(count);
NS_ASSERTION(NS_SUCCEEDED(rv), "unable to get child count");
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIDOMNode> domNode;
rv = child->QueryInterface(kIDOMNodeIID, (void**) getter_AddRefs(domNode));
if (NS_FAILED(rv)) {
NS_WARNING("child content doesn't support nsIDOMNode");
continue;
}
for (PRInt32 i = 0; i < count; ++i) {
nsCOMPtr<nsIContent> child;
rv = ChildAt(i, *getter_AddRefs(child));
NS_ASSERTION(NS_SUCCEEDED(rv), "unable to get child");
if (NS_FAILED(rv))
break;
rv = children->AppendNode(domNode);
NS_ASSERTION(NS_SUCCEEDED(rv), "unable to append node to list");
if (NS_FAILED(rv))
break;
nsCOMPtr<nsIDOMNode> domNode;
rv = child->QueryInterface(kIDOMNodeIID, (void**) getter_AddRefs(domNode));
if (NS_FAILED(rv)) {
NS_WARNING("child content doesn't support nsIDOMNode");
continue;
}
rv = children->AppendNode(domNode);
NS_ASSERTION(NS_SUCCEEDED(rv), "unable to append node to list");
if (NS_FAILED(rv))
break;
}
// Create() addref'd for us
@ -685,18 +687,17 @@ NS_IMETHODIMP
RDFElementImpl::GetFirstChild(nsIDOMNode** aFirstChild)
{
nsresult rv;
nsIContent* child;
if (NS_SUCCEEDED(rv = ChildAt(0, child))) {
if (nsnull == child) return(NS_ERROR_FAILURE);
nsCOMPtr<nsIContent> child;
rv = ChildAt(0, *getter_AddRefs(child));
if (NS_SUCCEEDED(rv) && (child != nsnull)) {
rv = child->QueryInterface(kIDOMNodeIID, (void**) aFirstChild);
NS_ASSERTION(NS_SUCCEEDED(rv), "not a DOM node");
NS_RELEASE(child); // balance the AddRef in ChildAt()
return rv;
}
else {
*aFirstChild = nsnull;
return NS_OK;
}
*aFirstChild = nsnull;
return NS_OK;
}
@ -705,23 +706,24 @@ RDFElementImpl::GetLastChild(nsIDOMNode** aLastChild)
{
nsresult rv;
PRInt32 count;
if (NS_FAILED(rv = ChildCount(count))) {
NS_ERROR("unable to get child count");
return rv;
}
if (count) {
nsIContent* child;
if (NS_SUCCEEDED(rv = ChildAt(count - 1, child))) {
rv = ChildCount(count);
NS_ASSERTION(NS_SUCCEEDED(rv), "unable to get child count");
if (NS_SUCCEEDED(rv) && (count != 0)) {
nsCOMPtr<nsIContent> child;
rv = ChildAt(count - 1, *getter_AddRefs(child));
NS_ASSERTION(child != nsnull, "no child");
if (child) {
rv = child->QueryInterface(kIDOMNodeIID, (void**) aLastChild);
NS_ASSERTION(NS_SUCCEEDED(rv), "not a DOM node");
NS_RELEASE(child); // balance the AddRef in ChildAt()
return rv;
}
return rv;
}
else {
*aLastChild = nsnull;
return NS_OK;
}
*aLastChild = nsnull;
return NS_OK;
}
@ -732,12 +734,11 @@ RDFElementImpl::GetPreviousSibling(nsIDOMNode** aPreviousSibling)
PRInt32 pos;
mParent->IndexOf(NS_STATIC_CAST(nsIStyledContent*, this), pos);
if (pos > -1) {
nsIContent* prev;
mParent->ChildAt(--pos, prev);
nsCOMPtr<nsIContent> prev;
mParent->ChildAt(--pos, *getter_AddRefs(prev));
if (prev) {
nsresult rv = prev->QueryInterface(kIDOMNodeIID, (void**) aPreviousSibling);
NS_ASSERTION(NS_SUCCEEDED(rv), "not a DOM node");
NS_RELEASE(prev); // balance the AddRef in ChildAt()
return rv;
}
}
@ -757,16 +758,16 @@ RDFElementImpl::GetNextSibling(nsIDOMNode** aNextSibling)
PRInt32 pos;
mParent->IndexOf(NS_STATIC_CAST(nsIStyledContent*, this), pos);
if (pos > -1) {
nsIContent* next;
mParent->ChildAt(++pos, next);
if (nsnull != next) {
nsCOMPtr<nsIContent> next;
mParent->ChildAt(++pos, *getter_AddRefs(next));
if (next) {
nsresult res = next->QueryInterface(kIDOMNodeIID, (void**) aNextSibling);
NS_ASSERTION(NS_OK == res, "not a DOM Node");
NS_RELEASE(next); // balance the AddRef in ChildAt()
return res;
}
}
}
// XXX Nodes that are just below the document (their parent is the
// document) need to go to the document to find their next sibling.
*aNextSibling = nsnull;

91
rdf/content/src/nsRDFElement.cpp
Просмотреть файл

@ -653,26 +653,28 @@ RDFElementImpl::GetChildNodes(nsIDOMNodeList** aChildNodes)
if (NS_FAILED(rv)) return rv;
PRInt32 count;
if (NS_SUCCEEDED(rv = ChildCount(count))) {
for (PRInt32 i = 0; i < count; ++i) {
nsCOMPtr<nsIContent> child;
rv = ChildAt(i, *getter_AddRefs(child));
NS_ASSERTION(NS_SUCCEEDED(rv), "unable to get child");
if (NS_FAILED(rv))
break;
rv = ChildCount(count);
NS_ASSERTION(NS_SUCCEEDED(rv), "unable to get child count");
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIDOMNode> domNode;
rv = child->QueryInterface(kIDOMNodeIID, (void**) getter_AddRefs(domNode));
if (NS_FAILED(rv)) {
NS_WARNING("child content doesn't support nsIDOMNode");
continue;
}
for (PRInt32 i = 0; i < count; ++i) {
nsCOMPtr<nsIContent> child;
rv = ChildAt(i, *getter_AddRefs(child));
NS_ASSERTION(NS_SUCCEEDED(rv), "unable to get child");
if (NS_FAILED(rv))
break;
rv = children->AppendNode(domNode);
NS_ASSERTION(NS_SUCCEEDED(rv), "unable to append node to list");
if (NS_FAILED(rv))
break;
nsCOMPtr<nsIDOMNode> domNode;
rv = child->QueryInterface(kIDOMNodeIID, (void**) getter_AddRefs(domNode));
if (NS_FAILED(rv)) {
NS_WARNING("child content doesn't support nsIDOMNode");
continue;
}
rv = children->AppendNode(domNode);
NS_ASSERTION(NS_SUCCEEDED(rv), "unable to append node to list");
if (NS_FAILED(rv))
break;
}
// Create() addref'd for us
@ -685,18 +687,17 @@ NS_IMETHODIMP
RDFElementImpl::GetFirstChild(nsIDOMNode** aFirstChild)
{
nsresult rv;
nsIContent* child;
if (NS_SUCCEEDED(rv = ChildAt(0, child))) {
if (nsnull == child) return(NS_ERROR_FAILURE);
nsCOMPtr<nsIContent> child;
rv = ChildAt(0, *getter_AddRefs(child));
if (NS_SUCCEEDED(rv) && (child != nsnull)) {
rv = child->QueryInterface(kIDOMNodeIID, (void**) aFirstChild);
NS_ASSERTION(NS_SUCCEEDED(rv), "not a DOM node");
NS_RELEASE(child); // balance the AddRef in ChildAt()
return rv;
}
else {
*aFirstChild = nsnull;
return NS_OK;
}
*aFirstChild = nsnull;
return NS_OK;
}
@ -705,23 +706,24 @@ RDFElementImpl::GetLastChild(nsIDOMNode** aLastChild)
{
nsresult rv;
PRInt32 count;
if (NS_FAILED(rv = ChildCount(count))) {
NS_ERROR("unable to get child count");
return rv;
}
if (count) {
nsIContent* child;
if (NS_SUCCEEDED(rv = ChildAt(count - 1, child))) {
rv = ChildCount(count);
NS_ASSERTION(NS_SUCCEEDED(rv), "unable to get child count");
if (NS_SUCCEEDED(rv) && (count != 0)) {
nsCOMPtr<nsIContent> child;
rv = ChildAt(count - 1, *getter_AddRefs(child));
NS_ASSERTION(child != nsnull, "no child");
if (child) {
rv = child->QueryInterface(kIDOMNodeIID, (void**) aLastChild);
NS_ASSERTION(NS_SUCCEEDED(rv), "not a DOM node");
NS_RELEASE(child); // balance the AddRef in ChildAt()
return rv;
}
return rv;
}
else {
*aLastChild = nsnull;
return NS_OK;
}
*aLastChild = nsnull;
return NS_OK;
}
@ -732,12 +734,11 @@ RDFElementImpl::GetPreviousSibling(nsIDOMNode** aPreviousSibling)
PRInt32 pos;
mParent->IndexOf(NS_STATIC_CAST(nsIStyledContent*, this), pos);
if (pos > -1) {
nsIContent* prev;
mParent->ChildAt(--pos, prev);
nsCOMPtr<nsIContent> prev;
mParent->ChildAt(--pos, *getter_AddRefs(prev));
if (prev) {
nsresult rv = prev->QueryInterface(kIDOMNodeIID, (void**) aPreviousSibling);
NS_ASSERTION(NS_SUCCEEDED(rv), "not a DOM node");
NS_RELEASE(prev); // balance the AddRef in ChildAt()
return rv;
}
}
@ -757,16 +758,16 @@ RDFElementImpl::GetNextSibling(nsIDOMNode** aNextSibling)
PRInt32 pos;
mParent->IndexOf(NS_STATIC_CAST(nsIStyledContent*, this), pos);
if (pos > -1) {
nsIContent* next;
mParent->ChildAt(++pos, next);
if (nsnull != next) {
nsCOMPtr<nsIContent> next;
mParent->ChildAt(++pos, *getter_AddRefs(next));
if (next) {
nsresult res = next->QueryInterface(kIDOMNodeIID, (void**) aNextSibling);
NS_ASSERTION(NS_OK == res, "not a DOM Node");
NS_RELEASE(next); // balance the AddRef in ChildAt()
return res;
}
}
}
// XXX Nodes that are just below the document (their parent is the
// document) need to go to the document to find their next sibling.
*aNextSibling = nsnull;

91
rdf/content/src/nsXULElement.cpp
Просмотреть файл

@ -653,26 +653,28 @@ RDFElementImpl::GetChildNodes(nsIDOMNodeList** aChildNodes)
if (NS_FAILED(rv)) return rv;
PRInt32 count;
if (NS_SUCCEEDED(rv = ChildCount(count))) {
for (PRInt32 i = 0; i < count; ++i) {
nsCOMPtr<nsIContent> child;
rv = ChildAt(i, *getter_AddRefs(child));
NS_ASSERTION(NS_SUCCEEDED(rv), "unable to get child");
if (NS_FAILED(rv))
break;
rv = ChildCount(count);
NS_ASSERTION(NS_SUCCEEDED(rv), "unable to get child count");
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIDOMNode> domNode;
rv = child->QueryInterface(kIDOMNodeIID, (void**) getter_AddRefs(domNode));
if (NS_FAILED(rv)) {
NS_WARNING("child content doesn't support nsIDOMNode");
continue;
}
for (PRInt32 i = 0; i < count; ++i) {
nsCOMPtr<nsIContent> child;
rv = ChildAt(i, *getter_AddRefs(child));
NS_ASSERTION(NS_SUCCEEDED(rv), "unable to get child");
if (NS_FAILED(rv))
break;
rv = children->AppendNode(domNode);
NS_ASSERTION(NS_SUCCEEDED(rv), "unable to append node to list");
if (NS_FAILED(rv))
break;
nsCOMPtr<nsIDOMNode> domNode;
rv = child->QueryInterface(kIDOMNodeIID, (void**) getter_AddRefs(domNode));
if (NS_FAILED(rv)) {
NS_WARNING("child content doesn't support nsIDOMNode");
continue;
}
rv = children->AppendNode(domNode);
NS_ASSERTION(NS_SUCCEEDED(rv), "unable to append node to list");
if (NS_FAILED(rv))
break;
}
// Create() addref'd for us
@ -685,18 +687,17 @@ NS_IMETHODIMP
RDFElementImpl::GetFirstChild(nsIDOMNode** aFirstChild)
{
nsresult rv;
nsIContent* child;
if (NS_SUCCEEDED(rv = ChildAt(0, child))) {
if (nsnull == child) return(NS_ERROR_FAILURE);
nsCOMPtr<nsIContent> child;
rv = ChildAt(0, *getter_AddRefs(child));
if (NS_SUCCEEDED(rv) && (child != nsnull)) {
rv = child->QueryInterface(kIDOMNodeIID, (void**) aFirstChild);
NS_ASSERTION(NS_SUCCEEDED(rv), "not a DOM node");
NS_RELEASE(child); // balance the AddRef in ChildAt()
return rv;
}
else {
*aFirstChild = nsnull;
return NS_OK;
}
*aFirstChild = nsnull;
return NS_OK;
}
@ -705,23 +706,24 @@ RDFElementImpl::GetLastChild(nsIDOMNode** aLastChild)
{
nsresult rv;
PRInt32 count;
if (NS_FAILED(rv = ChildCount(count))) {
NS_ERROR("unable to get child count");
return rv;
}
if (count) {
nsIContent* child;
if (NS_SUCCEEDED(rv = ChildAt(count - 1, child))) {
rv = ChildCount(count);
NS_ASSERTION(NS_SUCCEEDED(rv), "unable to get child count");
if (NS_SUCCEEDED(rv) && (count != 0)) {
nsCOMPtr<nsIContent> child;
rv = ChildAt(count - 1, *getter_AddRefs(child));
NS_ASSERTION(child != nsnull, "no child");
if (child) {
rv = child->QueryInterface(kIDOMNodeIID, (void**) aLastChild);
NS_ASSERTION(NS_SUCCEEDED(rv), "not a DOM node");
NS_RELEASE(child); // balance the AddRef in ChildAt()
return rv;
}
return rv;
}
else {
*aLastChild = nsnull;
return NS_OK;
}
*aLastChild = nsnull;
return NS_OK;
}
@ -732,12 +734,11 @@ RDFElementImpl::GetPreviousSibling(nsIDOMNode** aPreviousSibling)
PRInt32 pos;
mParent->IndexOf(NS_STATIC_CAST(nsIStyledContent*, this), pos);
if (pos > -1) {
nsIContent* prev;
mParent->ChildAt(--pos, prev);
nsCOMPtr<nsIContent> prev;
mParent->ChildAt(--pos, *getter_AddRefs(prev));
if (prev) {
nsresult rv = prev->QueryInterface(kIDOMNodeIID, (void**) aPreviousSibling);
NS_ASSERTION(NS_SUCCEEDED(rv), "not a DOM node");
NS_RELEASE(prev); // balance the AddRef in ChildAt()
return rv;
}
}
@ -757,16 +758,16 @@ RDFElementImpl::GetNextSibling(nsIDOMNode** aNextSibling)
PRInt32 pos;
mParent->IndexOf(NS_STATIC_CAST(nsIStyledContent*, this), pos);
if (pos > -1) {
nsIContent* next;
mParent->ChildAt(++pos, next);
if (nsnull != next) {
nsCOMPtr<nsIContent> next;
mParent->ChildAt(++pos, *getter_AddRefs(next));
if (next) {
nsresult res = next->QueryInterface(kIDOMNodeIID, (void**) aNextSibling);
NS_ASSERTION(NS_OK == res, "not a DOM Node");
NS_RELEASE(next); // balance the AddRef in ChildAt()
return res;
}
}
}
// XXX Nodes that are just below the document (their parent is the
// document) need to go to the document to find their next sibling.
*aNextSibling = nsnull;