gecko/dom/base/DOMCursor.cpp
Reuben Morais 4bdc75de7e Bug 837917 - Implement DOMCursor and DOMRequestService::fireDone(). r=sicking
--HG--
extra : rebase_source : 8ccb520402c53950d1c0149a0f5a3188fe838667
2013-02-08 12:25:37 -08:00

89 lines
2.1 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=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 "nsIDOMClassInfo.h"
#include "nsError.h"
DOMCI_DATA(DOMCursor, mozilla::dom::DOMCursor)
namespace mozilla {
namespace dom {
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(DOMCursor,
DOMRequest)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mCallback)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(DOMCursor,
DOMRequest)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mCallback)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(DOMCursor)
NS_INTERFACE_MAP_ENTRY(nsIDOMDOMCursor)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(DOMCursor)
NS_INTERFACE_MAP_END_INHERITING(DOMRequest)
NS_IMPL_ADDREF_INHERITED(DOMCursor, DOMRequest)
NS_IMPL_RELEASE_INHERITED(DOMCursor, DOMRequest)
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(DOMCursor, DOMRequest)
NS_IMPL_CYCLE_COLLECTION_TRACE_END
DOMCursor::DOMCursor(nsIDOMWindow* aWindow, nsICursorContinueCallback* aCallback)
: DOMRequest(aWindow)
, mCallback(aCallback)
, mFinished(false)
{
MOZ_ASSERT(aCallback);
}
void
DOMCursor::Reset()
{
MOZ_ASSERT(!mFinished);
// Reset the request state so we can FireSuccess() again.
if (mRooted) {
UnrootResultVal();
}
mResult = JSVAL_VOID;
mDone = false;
}
void
DOMCursor::FireDone()
{
Reset();
mFinished = true;
FireSuccess(JSVAL_VOID);
}
NS_IMETHODIMP
DOMCursor::GetDone(bool *aDone)
{
*aDone = mFinished;
return NS_OK;
}
NS_IMETHODIMP
DOMCursor::Continue()
{
// We need to have a result here because we must be in a 'success' state.
if (mResult == JSVAL_VOID) {
return NS_ERROR_DOM_INVALID_STATE_ERR;
}
Reset();
mCallback->HandleContinue();
return NS_OK;
}
} // namespace dom
} // namespace mozilla