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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 "Timeout.h"
#include "nsGlobalWindow.h"
#include "nsITimeoutHandler.h"
#include "nsITimer.h"
namespace mozilla {
namespace dom {
Timeout::Timeout()
: mCleared(false),
mRunning(false),
mIsInterval(false),
mReason(Reason::eTimeoutOrInterval),
mTimeoutId(0),
mInterval(0),
mFiringDepth(0),
mNestingLevel(0),
mPopupState(openAllowed)
{
MOZ_COUNT_CTOR(Timeout);
}
Timeout::~Timeout()
{
if (mTimer) {
mTimer->Cancel();
mTimer = nullptr;
}
MOZ_COUNT_DTOR(Timeout);
}
NS_IMPL_CYCLE_COLLECTION_CLASS(Timeout)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(Timeout)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mWindow)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mPrincipal)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mScriptHandler)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(Timeout)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mWindow)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mPrincipal)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mScriptHandler)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(Timeout, AddRef)
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(Timeout, Release)
namespace {
void
TimerCallback(nsITimer*, void* aClosure)
{
RefPtr<Timeout> timeout = (Timeout*)aClosure;
timeout->mWindow->RunTimeout(timeout);
}
void
TimerNameCallback(nsITimer* aTimer, void* aClosure, char* aBuf, size_t aLen)
{
RefPtr<Timeout> timeout = (Timeout*)aClosure;
const char* filename;
uint32_t lineNum, column;
timeout->mScriptHandler->GetLocation(&filename, &lineNum, &column);
snprintf(aBuf, aLen, "[content] %s:%u:%u", filename, lineNum, column);
}
} // anonymous namespace
nsresult
Timeout::InitTimer(nsIEventTarget* aTarget, uint32_t aDelay)
{
// If the given target does not match the timer's current target
// then we need to override it before the Init. Note that GetTarget()
// will return the current thread after setting the target to nullptr.
// So we need to special case the nullptr target comparison.
nsCOMPtr<nsIEventTarget> currentTarget;
MOZ_ALWAYS_SUCCEEDS(mTimer->GetTarget(getter_AddRefs(currentTarget)));
if ((aTarget && currentTarget != aTarget) ||
(!aTarget && currentTarget != NS_GetCurrentThread())) {
// Always call Cancel() in case we are re-using a timer. Otherwise
// the subsequent SetTarget() may fail.
MOZ_ALWAYS_SUCCEEDS(mTimer->Cancel());
MOZ_ALWAYS_SUCCEEDS(mTimer->SetTarget(aTarget));
}
return mTimer->InitWithNameableFuncCallback(
TimerCallback, this, aDelay, nsITimer::TYPE_ONE_SHOT, TimerNameCallback);
}
// Return true if this timeout has a refcount of 1. This is used to check
// that dummy_timeout doesn't leak from nsGlobalWindow::RunTimeout.
#ifdef DEBUG
bool
Timeout::HasRefCntOne() const
{
return mRefCnt.get() == 1;
}
#endif // DEBUG
} // namespace dom
} // namespace mozilla
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