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implemented joinNode. expect this and similar methods to move into editor.cpp

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This commit is contained in:
buster%netscape.com 1999-01-11 19:06:37 +00:00
parent 9254bf5fa2
commit 7476d737ae
3 changed files with 228 additions and 57 deletions
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95
editor/base/EditTxn.cpp
View File

@ -109,34 +109,45 @@ EditTxn::SplitNode(nsIDOMNode * aNode,
nsIDOMNode* aNewNode,
nsIDOMNode* aParent)
{
nsCOMPtr<nsIDOMNode> resultNode;
nsresult result = aParent->InsertBefore(aNewNode, aNode, getter_AddRefs(resultNode));
if (NS_SUCCEEDED(result))
nsresult result;
NS_ASSERTION(((nsnull!=aNode) &&
(nsnull!=aNewNode) &&
(nsnull!=aParent)),
"null arg");
if ((nsnull!=aNode) &&
(nsnull!=aNewNode) &&
(nsnull!=aParent))
{
// split the children between the 2 nodes
// at this point, nNode has all the children
if (0<=aOffset) // don't bother unless we're going to move at least one child
nsCOMPtr<nsIDOMNode> resultNode;
result = aParent->InsertBefore(aNewNode, aNode, getter_AddRefs(resultNode));
if (NS_SUCCEEDED(result))
{
nsCOMPtr<nsIDOMNodeList> childNodes;
result = aParent->GetChildNodes(getter_AddRefs(childNodes));
if ((NS_SUCCEEDED(result)) && (childNodes))
// split the children between the 2 nodes
// at this point, nNode has all the children
if (0<=aOffset) // don't bother unless we're going to move at least one child
{
PRInt32 i=0;
for ( ; ((NS_SUCCEEDED(result)) && (i<aOffset)); i++)
nsCOMPtr<nsIDOMNodeList> childNodes;
result = aParent->GetChildNodes(getter_AddRefs(childNodes));
if ((NS_SUCCEEDED(result)) && (childNodes))
{
nsCOMPtr<nsIDOMNode> childNode;
result = childNodes->Item(i, getter_AddRefs(childNode));
if ((NS_SUCCEEDED(result)) && (childNode))
PRInt32 i=0;
for ( ; ((NS_SUCCEEDED(result)) && (i<aOffset)); i++)
{
result = aNode->RemoveChild(childNode, getter_AddRefs(resultNode));
if (NS_SUCCEEDED(result))
nsCOMPtr<nsIDOMNode> childNode;
result = childNodes->Item(i, getter_AddRefs(childNode));
if ((NS_SUCCEEDED(result)) && (childNode))
{
result = aNewNode->AppendChild(childNode, getter_AddRefs(resultNode));
result = aNode->RemoveChild(childNode, getter_AddRefs(resultNode));
if (NS_SUCCEEDED(result))
{
result = aNewNode->AppendChild(childNode, getter_AddRefs(resultNode));
}
}
}
}
}
}
}
}
else result = NS_ERROR_NULL_POINTER;
}
return result;
}
@ -148,5 +159,51 @@ EditTxn::JoinNodes(nsIDOMNode * aNodeToKeep,
PRBool aNodeToKeepIsFirst)
{
nsresult result;
NS_ASSERTION(((nsnull!=aNodeToKeep) &&
(nsnull!=aNodeToJoin) &&
(nsnull!=aParent)),
"null arg");
if ((nsnull!=aNodeToKeep) &&
(nsnull!=aNodeToJoin) &&
(nsnull!=aParent))
{
nsCOMPtr<nsIDOMNodeList> childNodes;
result = aNodeToJoin->GetChildNodes(getter_AddRefs(childNodes));
if ((NS_SUCCEEDED(result)) && (childNodes))
{
PRUint32 i;
PRUint32 childCount=0;
childNodes->GetLength(&childCount);
nsCOMPtr<nsIDOMNode> firstNode; //only used if aNodeToKeepIsFirst is false
if (PR_FALSE==aNodeToKeepIsFirst)
{ // remember the first child in aNodeToKeep, we'll insert all the children of aNodeToJoin in front of it
result = aNodeToKeep->GetFirstChild(getter_AddRefs(firstNode));
// GetFirstChild returns nsnull firstNode if aNodeToKeep has no children, that's ok.
}
nsCOMPtr<nsIDOMNode> resultNode;
for (i=0; ((NS_SUCCEEDED(result)) && (i<childCount)); i++)
{
nsCOMPtr<nsIDOMNode> childNode;
result = childNodes->Item(i, getter_AddRefs(childNode));
if ((NS_SUCCEEDED(result)) && (childNode))
{
if (PR_TRUE==aNodeToKeepIsFirst)
{ // append children of aNodeToJoin
result = aNodeToKeep->AppendChild(childNode, getter_AddRefs(resultNode));
}
else
{ // prepend children of aNodeToJoin
result = aNodeToKeep->InsertBefore(childNode, firstNode, getter_AddRefs(resultNode));
}
}
}
if (NS_SUCCEEDED(result))
{ // delete the extra node
result = aParent->RemoveChild(aNodeToJoin, getter_AddRefs(resultNode));
}
}
}
else
result = NS_ERROR_NULL_POINTER;
return result;
}

95
editor/core/EditTxn.cpp
View File

@ -109,34 +109,45 @@ EditTxn::SplitNode(nsIDOMNode * aNode,
nsIDOMNode* aNewNode,
nsIDOMNode* aParent)
{
nsCOMPtr<nsIDOMNode> resultNode;
nsresult result = aParent->InsertBefore(aNewNode, aNode, getter_AddRefs(resultNode));
if (NS_SUCCEEDED(result))
nsresult result;
NS_ASSERTION(((nsnull!=aNode) &&
(nsnull!=aNewNode) &&
(nsnull!=aParent)),
"null arg");
if ((nsnull!=aNode) &&
(nsnull!=aNewNode) &&
(nsnull!=aParent))
{
// split the children between the 2 nodes
// at this point, nNode has all the children
if (0<=aOffset) // don't bother unless we're going to move at least one child
nsCOMPtr<nsIDOMNode> resultNode;
result = aParent->InsertBefore(aNewNode, aNode, getter_AddRefs(resultNode));
if (NS_SUCCEEDED(result))
{
nsCOMPtr<nsIDOMNodeList> childNodes;
result = aParent->GetChildNodes(getter_AddRefs(childNodes));
if ((NS_SUCCEEDED(result)) && (childNodes))
// split the children between the 2 nodes
// at this point, nNode has all the children
if (0<=aOffset) // don't bother unless we're going to move at least one child
{
PRInt32 i=0;
for ( ; ((NS_SUCCEEDED(result)) && (i<aOffset)); i++)
nsCOMPtr<nsIDOMNodeList> childNodes;
result = aParent->GetChildNodes(getter_AddRefs(childNodes));
if ((NS_SUCCEEDED(result)) && (childNodes))
{
nsCOMPtr<nsIDOMNode> childNode;
result = childNodes->Item(i, getter_AddRefs(childNode));
if ((NS_SUCCEEDED(result)) && (childNode))
PRInt32 i=0;
for ( ; ((NS_SUCCEEDED(result)) && (i<aOffset)); i++)
{
result = aNode->RemoveChild(childNode, getter_AddRefs(resultNode));
if (NS_SUCCEEDED(result))
nsCOMPtr<nsIDOMNode> childNode;
result = childNodes->Item(i, getter_AddRefs(childNode));
if ((NS_SUCCEEDED(result)) && (childNode))
{
result = aNewNode->AppendChild(childNode, getter_AddRefs(resultNode));
result = aNode->RemoveChild(childNode, getter_AddRefs(resultNode));
if (NS_SUCCEEDED(result))
{
result = aNewNode->AppendChild(childNode, getter_AddRefs(resultNode));
}
}
}
}
}
}
}
}
else result = NS_ERROR_NULL_POINTER;
}
return result;
}
@ -148,5 +159,51 @@ EditTxn::JoinNodes(nsIDOMNode * aNodeToKeep,
PRBool aNodeToKeepIsFirst)
{
nsresult result;
NS_ASSERTION(((nsnull!=aNodeToKeep) &&
(nsnull!=aNodeToJoin) &&
(nsnull!=aParent)),
"null arg");
if ((nsnull!=aNodeToKeep) &&
(nsnull!=aNodeToJoin) &&
(nsnull!=aParent))
{
nsCOMPtr<nsIDOMNodeList> childNodes;
result = aNodeToJoin->GetChildNodes(getter_AddRefs(childNodes));
if ((NS_SUCCEEDED(result)) && (childNodes))
{
PRUint32 i;
PRUint32 childCount=0;
childNodes->GetLength(&childCount);
nsCOMPtr<nsIDOMNode> firstNode; //only used if aNodeToKeepIsFirst is false
if (PR_FALSE==aNodeToKeepIsFirst)
{ // remember the first child in aNodeToKeep, we'll insert all the children of aNodeToJoin in front of it
result = aNodeToKeep->GetFirstChild(getter_AddRefs(firstNode));
// GetFirstChild returns nsnull firstNode if aNodeToKeep has no children, that's ok.
}
nsCOMPtr<nsIDOMNode> resultNode;
for (i=0; ((NS_SUCCEEDED(result)) && (i<childCount)); i++)
{
nsCOMPtr<nsIDOMNode> childNode;
result = childNodes->Item(i, getter_AddRefs(childNode));
if ((NS_SUCCEEDED(result)) && (childNode))
{
if (PR_TRUE==aNodeToKeepIsFirst)
{ // append children of aNodeToJoin
result = aNodeToKeep->AppendChild(childNode, getter_AddRefs(resultNode));
}
else
{ // prepend children of aNodeToJoin
result = aNodeToKeep->InsertBefore(childNode, firstNode, getter_AddRefs(resultNode));
}
}
}
if (NS_SUCCEEDED(result))
{ // delete the extra node
result = aParent->RemoveChild(aNodeToJoin, getter_AddRefs(resultNode));
}
}
}
else
result = NS_ERROR_NULL_POINTER;
return result;
}

95
editor/libeditor/base/EditTxn.cpp
View File

@ -109,34 +109,45 @@ EditTxn::SplitNode(nsIDOMNode * aNode,
nsIDOMNode* aNewNode,
nsIDOMNode* aParent)
{
nsCOMPtr<nsIDOMNode> resultNode;
nsresult result = aParent->InsertBefore(aNewNode, aNode, getter_AddRefs(resultNode));
if (NS_SUCCEEDED(result))
nsresult result;
NS_ASSERTION(((nsnull!=aNode) &&
(nsnull!=aNewNode) &&
(nsnull!=aParent)),
"null arg");
if ((nsnull!=aNode) &&
(nsnull!=aNewNode) &&
(nsnull!=aParent))
{
// split the children between the 2 nodes
// at this point, nNode has all the children
if (0<=aOffset) // don't bother unless we're going to move at least one child
nsCOMPtr<nsIDOMNode> resultNode;
result = aParent->InsertBefore(aNewNode, aNode, getter_AddRefs(resultNode));
if (NS_SUCCEEDED(result))
{
nsCOMPtr<nsIDOMNodeList> childNodes;
result = aParent->GetChildNodes(getter_AddRefs(childNodes));
if ((NS_SUCCEEDED(result)) && (childNodes))
// split the children between the 2 nodes
// at this point, nNode has all the children
if (0<=aOffset) // don't bother unless we're going to move at least one child
{
PRInt32 i=0;
for ( ; ((NS_SUCCEEDED(result)) && (i<aOffset)); i++)
nsCOMPtr<nsIDOMNodeList> childNodes;
result = aParent->GetChildNodes(getter_AddRefs(childNodes));
if ((NS_SUCCEEDED(result)) && (childNodes))
{
nsCOMPtr<nsIDOMNode> childNode;
result = childNodes->Item(i, getter_AddRefs(childNode));
if ((NS_SUCCEEDED(result)) && (childNode))
PRInt32 i=0;
for ( ; ((NS_SUCCEEDED(result)) && (i<aOffset)); i++)
{
result = aNode->RemoveChild(childNode, getter_AddRefs(resultNode));
if (NS_SUCCEEDED(result))
nsCOMPtr<nsIDOMNode> childNode;
result = childNodes->Item(i, getter_AddRefs(childNode));
if ((NS_SUCCEEDED(result)) && (childNode))
{
result = aNewNode->AppendChild(childNode, getter_AddRefs(resultNode));
result = aNode->RemoveChild(childNode, getter_AddRefs(resultNode));
if (NS_SUCCEEDED(result))
{
result = aNewNode->AppendChild(childNode, getter_AddRefs(resultNode));
}
}
}
}
}
}
}
}
else result = NS_ERROR_NULL_POINTER;
}
return result;
}
@ -148,5 +159,51 @@ EditTxn::JoinNodes(nsIDOMNode * aNodeToKeep,
PRBool aNodeToKeepIsFirst)
{
nsresult result;
NS_ASSERTION(((nsnull!=aNodeToKeep) &&
(nsnull!=aNodeToJoin) &&
(nsnull!=aParent)),
"null arg");
if ((nsnull!=aNodeToKeep) &&
(nsnull!=aNodeToJoin) &&
(nsnull!=aParent))
{
nsCOMPtr<nsIDOMNodeList> childNodes;
result = aNodeToJoin->GetChildNodes(getter_AddRefs(childNodes));
if ((NS_SUCCEEDED(result)) && (childNodes))
{
PRUint32 i;
PRUint32 childCount=0;
childNodes->GetLength(&childCount);
nsCOMPtr<nsIDOMNode> firstNode; //only used if aNodeToKeepIsFirst is false
if (PR_FALSE==aNodeToKeepIsFirst)
{ // remember the first child in aNodeToKeep, we'll insert all the children of aNodeToJoin in front of it
result = aNodeToKeep->GetFirstChild(getter_AddRefs(firstNode));
// GetFirstChild returns nsnull firstNode if aNodeToKeep has no children, that's ok.
}
nsCOMPtr<nsIDOMNode> resultNode;
for (i=0; ((NS_SUCCEEDED(result)) && (i<childCount)); i++)
{
nsCOMPtr<nsIDOMNode> childNode;
result = childNodes->Item(i, getter_AddRefs(childNode));
if ((NS_SUCCEEDED(result)) && (childNode))
{
if (PR_TRUE==aNodeToKeepIsFirst)
{ // append children of aNodeToJoin
result = aNodeToKeep->AppendChild(childNode, getter_AddRefs(resultNode));
}
else
{ // prepend children of aNodeToJoin
result = aNodeToKeep->InsertBefore(childNode, firstNode, getter_AddRefs(resultNode));
}
}
}
if (NS_SUCCEEDED(result))
{ // delete the extra node
result = aParent->RemoveChild(aNodeToJoin, getter_AddRefs(resultNode));
}
}
}
else
result = NS_ERROR_NULL_POINTER;
return result;
}