mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
93 lines
2.6 KiB
C++
93 lines
2.6 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 "mozilla/dom/Element.h" // for Element
|
|
|
|
#include "ChangeAttributeTxn.h"
|
|
#include "nsAString.h"
|
|
#include "nsError.h" // for NS_ERROR_NOT_INITIALIZED, etc
|
|
|
|
using namespace mozilla;
|
|
using namespace mozilla::dom;
|
|
|
|
ChangeAttributeTxn::ChangeAttributeTxn(Element& aElement, nsIAtom& aAttribute,
|
|
const nsAString* aValue)
|
|
: EditTxn()
|
|
, mElement(&aElement)
|
|
, mAttribute(&aAttribute)
|
|
, mValue(aValue ? *aValue : EmptyString())
|
|
, mRemoveAttribute(!aValue)
|
|
, mAttributeWasSet(false)
|
|
, mUndoValue()
|
|
{
|
|
}
|
|
|
|
ChangeAttributeTxn::~ChangeAttributeTxn()
|
|
{
|
|
}
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED(ChangeAttributeTxn, EditTxn,
|
|
mElement)
|
|
|
|
NS_IMPL_ADDREF_INHERITED(ChangeAttributeTxn, EditTxn)
|
|
NS_IMPL_RELEASE_INHERITED(ChangeAttributeTxn, EditTxn)
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(ChangeAttributeTxn)
|
|
NS_INTERFACE_MAP_END_INHERITING(EditTxn)
|
|
|
|
NS_IMETHODIMP
|
|
ChangeAttributeTxn::DoTransaction()
|
|
{
|
|
// Need to get the current value of the attribute and save it, and set
|
|
// mAttributeWasSet
|
|
mAttributeWasSet = mElement->GetAttr(kNameSpaceID_None, mAttribute,
|
|
mUndoValue);
|
|
|
|
// XXX: hack until attribute-was-set code is implemented
|
|
if (!mUndoValue.IsEmpty()) {
|
|
mAttributeWasSet = true;
|
|
}
|
|
// XXX: end hack
|
|
|
|
// Now set the attribute to the new value
|
|
if (mRemoveAttribute) {
|
|
return mElement->UnsetAttr(kNameSpaceID_None, mAttribute, true);
|
|
}
|
|
|
|
return mElement->SetAttr(kNameSpaceID_None, mAttribute, mValue, true);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
ChangeAttributeTxn::UndoTransaction()
|
|
{
|
|
if (mAttributeWasSet) {
|
|
return mElement->SetAttr(kNameSpaceID_None, mAttribute, mUndoValue, true);
|
|
}
|
|
return mElement->UnsetAttr(kNameSpaceID_None, mAttribute, true);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
ChangeAttributeTxn::RedoTransaction()
|
|
{
|
|
if (mRemoveAttribute) {
|
|
return mElement->UnsetAttr(kNameSpaceID_None, mAttribute, true);
|
|
}
|
|
|
|
return mElement->SetAttr(kNameSpaceID_None, mAttribute, mValue, true);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
ChangeAttributeTxn::GetTxnDescription(nsAString& aString)
|
|
{
|
|
aString.AssignLiteral("ChangeAttributeTxn: [mRemoveAttribute == ");
|
|
|
|
if (mRemoveAttribute) {
|
|
aString.AppendLiteral("true] ");
|
|
} else {
|
|
aString.AppendLiteral("false] ");
|
|
}
|
|
aString += nsDependentAtomString(mAttribute);
|
|
return NS_OK;
|
|
}
|