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/* -*- 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 "InsertTextTransaction.h"
#include "ErrorList.h"
#include "mozilla/EditorBase.h" // mEditorBase
#include "mozilla/Logging.h"
#include "mozilla/SelectionState.h" // RangeUpdater
#include "mozilla/TextEditor.h" // TextEditor
#include "mozilla/ToString.h"
#include "mozilla/dom/Selection.h" // Selection local var
#include "mozilla/dom/Text.h" // mTextNode
#include "nsAString.h" // nsAString parameter
#include "nsDebug.h" // for NS_ASSERTION, etc.
#include "nsError.h" // for NS_OK, etc.
#include "nsQueryObject.h" // for do_QueryObject
namespace mozilla {
using namespace dom;
// static
already_AddRefed<InsertTextTransaction> InsertTextTransaction::Create(
EditorBase& aEditorBase, const nsAString& aStringToInsert,
const EditorDOMPointInText& aPointToInsert) {
MOZ_ASSERT(aPointToInsert.IsSetAndValid());
RefPtr<InsertTextTransaction> transaction =
aEditorBase.IsTextEditor()
? new InsertTextTransaction(aEditorBase, aStringToInsert,
aPointToInsert)
: new InsertTextIntoTextNodeTransaction(aEditorBase, aStringToInsert,
aPointToInsert);
return transaction.forget();
}
InsertTextTransaction::InsertTextTransaction(
EditorBase& aEditorBase, const nsAString& aStringToInsert,
const EditorDOMPointInText& aPointToInsert)
: mEditorBase(&aEditorBase),
mStringToInsert(aStringToInsert),
mOffset(aPointToInsert.Offset()) {}
std::ostream& operator<<(std::ostream& aStream,
const InsertTextTransaction& aTransaction) {
const auto* transactionForHTMLEditor =
aTransaction.GetAsInsertTextIntoTextNodeTransaction();
if (transactionForHTMLEditor) {
return aStream << *transactionForHTMLEditor;
}
aStream << "{ mOffset=" << aTransaction.mOffset << ", mStringToInsert=\""
<< NS_ConvertUTF16toUTF8(aTransaction.mStringToInsert).get() << "\""
<< ", mEditorBase=" << aTransaction.mEditorBase.get() << " }";
return aStream;
}
NS_IMPL_CYCLE_COLLECTION_INHERITED(InsertTextTransaction, EditTransactionBase,
mEditorBase)
NS_IMPL_ADDREF_INHERITED(InsertTextTransaction, EditTransactionBase)
NS_IMPL_RELEASE_INHERITED(InsertTextTransaction, EditTransactionBase)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(InsertTextTransaction)
NS_INTERFACE_MAP_END_INHERITING(EditTransactionBase)
Text* InsertTextTransaction::GetTextNode() const {
if (MOZ_UNLIKELY(!mEditorBase)) {
return nullptr;
}
if (TextEditor* const textEditor = mEditorBase->GetAsTextEditor()) {
return textEditor->GetTextNode();
}
MOZ_ASSERT(GetAsInsertTextIntoTextNodeTransaction());
return GetAsInsertTextIntoTextNodeTransaction()->mTextNode;
}
NS_IMETHODIMP InsertTextTransaction::DoTransaction() {
MOZ_LOG(GetLogModule(), LogLevel::Info,
("%p InsertTextTransaction::%s this=%s", this, __FUNCTION__,
ToString(*this).c_str()));
if (NS_WARN_IF(!mEditorBase)) {
return NS_ERROR_NOT_AVAILABLE;
}
const RefPtr<Text> textNode = GetTextNode();
if (NS_WARN_IF(!textNode)) {
return NS_ERROR_NOT_AVAILABLE;
}
const OwningNonNull<EditorBase> editorBase = *mEditorBase;
ErrorResult error;
editorBase->DoInsertText(*textNode, mOffset, mStringToInsert, error);
if (error.Failed()) {
NS_WARNING("EditorBase::DoInsertText() failed");
return error.StealNSResult();
}
editorBase->RangeUpdaterRef().SelAdjInsertText(*textNode, mOffset,
mStringToInsert.Length());
return NS_OK;
}
NS_IMETHODIMP InsertTextTransaction::UndoTransaction() {
MOZ_LOG(GetLogModule(), LogLevel::Info,
("%p InsertTextTransaction::%s this=%s", this, __FUNCTION__,
ToString(*this).c_str()));
if (NS_WARN_IF(!mEditorBase)) {
return NS_ERROR_NOT_INITIALIZED;
}
const RefPtr<Text> textNode = GetTextNode();
if (NS_WARN_IF(!textNode)) {
return NS_ERROR_NOT_AVAILABLE;
}
const OwningNonNull<EditorBase> editorBase = *mEditorBase;
ErrorResult error;
editorBase->DoDeleteText(*textNode, mOffset, mStringToInsert.Length(), error);
NS_WARNING_ASSERTION(!error.Failed(), "EditorBase::DoDeleteText() failed");
return error.StealNSResult();
}
NS_IMETHODIMP InsertTextTransaction::RedoTransaction() {
MOZ_LOG(GetLogModule(), LogLevel::Info,
("%p InsertTextTransaction::%s this=%s", this, __FUNCTION__,
!mEditorBase || mEditorBase->IsTextEditor()
? ToString(*this).c_str()
: ToString(*GetAsInsertTextIntoTextNodeTransaction()).c_str()));
nsresult rv = DoTransaction();
if (NS_FAILED(rv)) {
NS_WARNING("InsertTextTransaction::DoTransaction() failed");
return rv;
}
if (RefPtr<EditorBase> editorBase = mEditorBase) {
nsresult rv = editorBase->CollapseSelectionTo(
SuggestPointToPutCaret<EditorRawDOMPoint>());
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
return NS_ERROR_EDITOR_DESTROYED;
}
NS_WARNING_ASSERTION(
NS_SUCCEEDED(rv),
"EditorBase::CollapseSelectionTo() failed, but ignored");
}
return NS_OK;
}
NS_IMETHODIMP InsertTextTransaction::Merge(nsITransaction* aOtherTransaction,
bool* aDidMerge) {
MOZ_LOG(GetLogModule(), LogLevel::Debug,
("%p InsertTextTransaction::%s(aOtherTransaction=%p) this=%s", this,
__FUNCTION__, aOtherTransaction, ToString(*this).c_str()));
if (NS_WARN_IF(!aOtherTransaction) || NS_WARN_IF(!aDidMerge)) {
return NS_ERROR_INVALID_ARG;
}
// Set out param default value
*aDidMerge = false;
RefPtr<EditTransactionBase> otherTransactionBase =
aOtherTransaction->GetAsEditTransactionBase();
if (!otherTransactionBase) {
MOZ_LOG(
GetLogModule(), LogLevel::Debug,
("%p InsertTextTransaction::%s(aOtherTransaction=%p) returned false",
this, __FUNCTION__, aOtherTransaction));
return NS_OK;
}
// If aTransaction is a InsertTextTransaction, and if the selection hasn't
// changed, then absorb it.
InsertTextTransaction* otherInsertTextTransaction =
otherTransactionBase->GetAsInsertTextTransaction();
if (!otherInsertTextTransaction ||
!IsSequentialInsert(*otherInsertTextTransaction)) {
MOZ_LOG(
GetLogModule(), LogLevel::Debug,
("%p InsertTextTransaction::%s(aOtherTransaction=%p) returned false",
this, __FUNCTION__, aOtherTransaction));
return NS_OK;
}
mStringToInsert += otherInsertTextTransaction->GetData();
*aDidMerge = true;
MOZ_LOG(GetLogModule(), LogLevel::Debug,
("%p InsertTextTransaction::%s(aOtherTransaction=%p) returned true",
this, __FUNCTION__, aOtherTransaction));
return NS_OK;
}
bool InsertTextTransaction::IsSequentialInsert(
InsertTextTransaction& aOtherTransaction) const {
return aOtherTransaction.GetTextNode() == GetTextNode() &&
aOtherTransaction.mOffset == mOffset + mStringToInsert.Length();
}
/******************************************************************************
* mozilla::InsertTextIntoTextNodeTransaction
******************************************************************************/
InsertTextIntoTextNodeTransaction::InsertTextIntoTextNodeTransaction(
EditorBase& aEditorBase, const nsAString& aStringToInsert,
const EditorDOMPointInText& aPointToInsert)
: InsertTextTransaction(aEditorBase, aStringToInsert, aPointToInsert),
mTextNode(aPointToInsert.ContainerAs<Text>()) {
MOZ_ASSERT(aEditorBase.IsHTMLEditor());
}
std::ostream& operator<<(
std::ostream& aStream,
const InsertTextIntoTextNodeTransaction& aTransaction) {
aStream << "{ mTextNode=" << aTransaction.mTextNode.get();
if (aTransaction.mTextNode) {
aStream << " (" << *aTransaction.mTextNode << ")";
}
aStream << ", mOffset=" << aTransaction.mOffset << ", mStringToInsert=\""
<< NS_ConvertUTF16toUTF8(aTransaction.mStringToInsert).get() << "\""
<< ", mEditorBase=" << aTransaction.mEditorBase.get() << " }";
return aStream;
}
NS_IMPL_CYCLE_COLLECTION_INHERITED(InsertTextIntoTextNodeTransaction,
InsertTextTransaction, mTextNode)
NS_IMPL_ADDREF_INHERITED(InsertTextIntoTextNodeTransaction,
InsertTextTransaction)
NS_IMPL_RELEASE_INHERITED(InsertTextIntoTextNodeTransaction,
InsertTextTransaction)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(InsertTextIntoTextNodeTransaction)
NS_INTERFACE_MAP_END_INHERITING(InsertTextTransaction)
} // namespace mozilla
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