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// Copyright 2017 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "fxjs/global_timer.h"
#include <map>
#include "core/fxcrt/cfx_timer.h"
#include "fxjs/cjs_app.h"
#include "third_party/base/check.h"
#include "third_party/base/no_destructor.h"
#include "third_party/base/stl_util.h"
namespace {
using TimerMap = std::map<int32_t, GlobalTimer*>;
TimerMap& GetGlobalTimerMap() {
static pdfium::base::NoDestructor<TimerMap> timer_map;
return *timer_map;
}
} // namespace
GlobalTimer::GlobalTimer(CJS_App* pObj,
CJS_Runtime* pRuntime,
Type nType,
const WideString& script,
uint32_t dwElapse,
uint32_t dwTimeOut)
: m_nType(nType),
m_nTimerID(pRuntime->GetTimerHandler()->SetTimer(dwElapse, Trigger)),
m_dwTimeOut(dwTimeOut),
m_swJScript(script),
m_pRuntime(pRuntime),
m_pEmbedApp(pObj) {
if (HasValidID()) {
DCHECK(!pdfium::Contains(GetGlobalTimerMap(), m_nTimerID));
GetGlobalTimerMap()[m_nTimerID] = this;
}
}
GlobalTimer::~GlobalTimer() {
if (!HasValidID())
return;
if (m_pRuntime && m_pRuntime->GetTimerHandler())
m_pRuntime->GetTimerHandler()->KillTimer(m_nTimerID);
DCHECK(pdfium::Contains(GetGlobalTimerMap(), m_nTimerID));
GetGlobalTimerMap().erase(m_nTimerID);
}
// static
void GlobalTimer::Trigger(int32_t nTimerID) {
auto it = GetGlobalTimerMap().find(nTimerID);
if (it == GetGlobalTimerMap().end())
return;
GlobalTimer* pTimer = it->second;
if (pTimer->m_bProcessing)
return;
pTimer->m_bProcessing = true;
if (pTimer->m_pEmbedApp)
pTimer->m_pEmbedApp->TimerProc(pTimer);
// Timer proc may have destroyed timer, find it again.
it = GetGlobalTimerMap().find(nTimerID);
if (it == GetGlobalTimerMap().end())
return;
pTimer = it->second;
pTimer->m_bProcessing = false;
if (pTimer->IsOneShot())
pTimer->m_pEmbedApp->CancelProc(pTimer);
}
// static
void GlobalTimer::Cancel(int32_t nTimerID) {
auto it = GetGlobalTimerMap().find(nTimerID);
if (it == GetGlobalTimerMap().end())
return;
GlobalTimer* pTimer = it->second;
pTimer->m_pEmbedApp->CancelProc(pTimer);
}
bool GlobalTimer::HasValidID() const {
return m_nTimerID != CFX_Timer::HandlerIface::kInvalidTimerID;
}