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* added TransactionFactory. Editor no longer allocates its own transactions. This gives us an oppurtunity for a recycler.

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* added DeleteSelection to editor.  Doesn't work very well yet because selection is giving me random offsets into text content.
* lots of work in the various transactions.


git-svn-id: svn://10.0.0.236/trunk@18122 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
buster%netscape.com
1999-01-21 01:51:09 +00:00
parent 4891b6afd8
commit b48e2caf7c
76 changed files with 4068 additions and 862 deletions
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38
mozilla/editor/libeditor/base/SplitElementTxn.cpp
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@@ -17,44 +17,42 @@
*/
#include "SplitElementTxn.h"
#include "editor.h"
#include "nsIDOMNode.h"
#include "nsIDOMElement.h"
#include "editor.h"
// note that aEditor is not refcounted
SplitElementTxn::SplitElementTxn(nsEditor *aEditor,
nsIDOMNode *aNode,
PRInt32 aOffset)
: EditTxn(aEditor)
SplitElementTxn::SplitElementTxn()
: EditTxn()
{
mNode = aNode;
NS_ADDREF(mNode);
}
nsresult SplitElementTxn::Init(nsIDOMNode *aNode,
PRInt32 aOffset)
{
mExistingRightNode = aNode;
mOffset = aOffset;
mNewNode = nsnull;
mParent = nsnull;
return NS_OK;
}
SplitElementTxn::~SplitElementTxn()
{
NS_IF_RELEASE(mNode);
NS_IF_RELEASE(mNewNode);
NS_IF_RELEASE(mParent);
}
nsresult SplitElementTxn::Do(void)
{
// create a new node
nsresult result = mNode->CloneNode(PR_FALSE, &mNewNode);
NS_ASSERTION(((NS_SUCCEEDED(result)) && (nsnull!=mNewNode)), "could not create element.");
nsresult result = mExistingRightNode->CloneNode(PR_FALSE, getter_AddRefs(mNewLeftNode));
NS_ASSERTION(((NS_SUCCEEDED(result)) && (mNewLeftNode)), "could not create element.");
if ((NS_SUCCEEDED(result)) && (nsnull!=mNewNode))
if ((NS_SUCCEEDED(result)) && (mNewLeftNode))
{
// get the parent node
result = mNode->GetParentNode(&mParent);
result = mExistingRightNode->GetParentNode(getter_AddRefs(mParent));
// insert the new node
if ((NS_SUCCEEDED(result)) && (nsnull!=mParent))
if ((NS_SUCCEEDED(result)) && (mParent))
{
result = mEditor->SplitNode(mNode, mOffset, mNewNode, mParent);
result = nsEditor::SplitNode(mExistingRightNode, mOffset, mNewLeftNode, mParent);
}
}
return result;
@@ -63,13 +61,13 @@ nsresult SplitElementTxn::Do(void)
nsresult SplitElementTxn::Undo(void)
{
// this assumes Do inserted the new node in front of the prior existing node
nsresult result = mEditor->JoinNodes(mNode, mNewNode, mParent, PR_FALSE);
nsresult result = nsEditor::JoinNodes(mExistingRightNode, mNewLeftNode, mParent, PR_FALSE);
return result;
}
nsresult SplitElementTxn::Redo(void)
{
nsresult result = mEditor->SplitNode(mNode, mOffset, mNewNode, mParent);
nsresult result = nsEditor::SplitNode(mExistingRightNode, mOffset, mNewLeftNode, mParent);
return result;
}