mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-24 00:24:14 +00:00
e877ded333
Edit transactions should store their editor instance with strong reference and they should be released at destroying the editor. MozReview-Commit-ID: D67KU8WFxyo --HG-- extra : rebase_source : 28c8a37498cad9f2e308eb4416cef76cf395bb9c
102 lines
3.2 KiB
C++
102 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "InsertNodeTransaction.h"
|
|
|
|
#include "mozilla/EditorBase.h" // for EditorBase
|
|
|
|
#include "mozilla/dom/Selection.h" // for Selection
|
|
|
|
#include "nsAString.h"
|
|
#include "nsDebug.h" // for NS_ENSURE_TRUE, etc.
|
|
#include "nsError.h" // for NS_ERROR_NULL_POINTER, etc.
|
|
#include "nsIContent.h" // for nsIContent
|
|
#include "nsMemory.h" // for nsMemory
|
|
#include "nsReadableUtils.h" // for ToNewCString
|
|
#include "nsString.h" // for nsString
|
|
|
|
namespace mozilla {
|
|
|
|
using namespace dom;
|
|
|
|
InsertNodeTransaction::InsertNodeTransaction(nsIContent& aNode,
|
|
nsINode& aParent,
|
|
int32_t aOffset,
|
|
EditorBase& aEditorBase)
|
|
: mNode(&aNode)
|
|
, mParent(&aParent)
|
|
, mOffset(aOffset)
|
|
, mEditorBase(&aEditorBase)
|
|
{
|
|
}
|
|
|
|
InsertNodeTransaction::~InsertNodeTransaction()
|
|
{
|
|
}
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED(InsertNodeTransaction, EditTransactionBase,
|
|
mEditorBase,
|
|
mNode,
|
|
mParent)
|
|
|
|
NS_IMPL_ADDREF_INHERITED(InsertNodeTransaction, EditTransactionBase)
|
|
NS_IMPL_RELEASE_INHERITED(InsertNodeTransaction, EditTransactionBase)
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(InsertNodeTransaction)
|
|
NS_INTERFACE_MAP_END_INHERITING(EditTransactionBase)
|
|
|
|
NS_IMETHODIMP
|
|
InsertNodeTransaction::DoTransaction()
|
|
{
|
|
if (NS_WARN_IF(!mEditorBase) || NS_WARN_IF(!mNode) || NS_WARN_IF(!mParent)) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
uint32_t count = mParent->GetChildCount();
|
|
if (mOffset > static_cast<int32_t>(count) || mOffset == -1) {
|
|
// -1 is sentinel value meaning "append at end"
|
|
mOffset = count;
|
|
}
|
|
|
|
// Note, it's ok for ref to be null. That means append.
|
|
nsCOMPtr<nsIContent> ref = mParent->GetChildAt(mOffset);
|
|
|
|
mEditorBase->MarkNodeDirty(GetAsDOMNode(mNode));
|
|
|
|
ErrorResult rv;
|
|
mParent->InsertBefore(*mNode, ref, rv);
|
|
NS_ENSURE_TRUE(!rv.Failed(), rv.StealNSResult());
|
|
|
|
// Only set selection to insertion point if editor gives permission
|
|
if (mEditorBase->GetShouldTxnSetSelection()) {
|
|
RefPtr<Selection> selection = mEditorBase->GetSelection();
|
|
NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER);
|
|
// Place the selection just after the inserted element
|
|
selection->Collapse(mParent, mOffset + 1);
|
|
} else {
|
|
// Do nothing - DOM Range gravity will adjust selection
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
InsertNodeTransaction::UndoTransaction()
|
|
{
|
|
if (NS_WARN_IF(!mNode) || NS_WARN_IF(!mParent)) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
ErrorResult rv;
|
|
mParent->RemoveChild(*mNode, rv);
|
|
return rv.StealNSResult();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
InsertNodeTransaction::GetTxnDescription(nsAString& aString)
|
|
{
|
|
aString.AssignLiteral("InsertNodeTransaction");
|
|
return NS_OK;
|
|
}
|
|
|
|
} // namespace mozilla
|