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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "DOMCursor.h"
#include "mozilla/dom/DOMCursorBinding.h"
namespace mozilla {
namespace dom {
NS_IMPL_CYCLE_COLLECTION_INHERITED(DOMCursor, DOMRequest,
mCallback)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(DOMCursor)
NS_INTERFACE_MAP_ENTRY(nsIDOMDOMCursor)
NS_INTERFACE_MAP_END_INHERITING(DOMRequest)
NS_IMPL_ADDREF_INHERITED(DOMCursor, DOMRequest)
NS_IMPL_RELEASE_INHERITED(DOMCursor, DOMRequest)
DOMCursor::DOMCursor(nsPIDOMWindowInner* aWindow, nsICursorContinueCallback* aCallback)
: DOMRequest(aWindow)
, mCallback(aCallback)
, mFinished(false)
{
}
DOMCursor::DOMCursor(nsIGlobalObject* aGlobal, nsICursorContinueCallback* aCallback)
: DOMRequest(aGlobal)
, mCallback(aCallback)
, mFinished(false)
{
}
void
DOMCursor::Reset()
{
MOZ_ASSERT(!mFinished);
// Reset the request state so we can FireSuccess() again.
mResult.setUndefined();
mDone = false;
}
void
DOMCursor::FireDone()
{
Reset();
mFinished = true;
FireSuccess(JS::UndefinedHandleValue);
}
NS_IMETHODIMP
DOMCursor::GetDone(bool *aDone)
{
*aDone = Done();
return NS_OK;
}
NS_IMETHODIMP
DOMCursor::Continue()
{
ErrorResult rv;
Continue(rv);
return rv.StealNSResult();
}
void
DOMCursor::Continue(ErrorResult& aRv)
{
MOZ_ASSERT(mCallback, "If you're creating your own cursor class with no callback, you should override Continue()");
// We need to have a result here because we must be in a 'success' state.
if (mResult.isUndefined()) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return;
}
Reset();
mCallback->HandleContinue();
}
/* virtual */ JSObject*
DOMCursor::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return DOMCursorBinding::Wrap(aCx, this, aGivenProto);
}
} // namespace dom
} // namespace mozilla
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