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1 // Copyright 2017 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6 
7 #include "fpdfsdk/pwl/cpwl_timer.h"
8 
9 #include <map>
10 
11 #include "fpdfsdk/cfx_systemhandler.h"
12 #include "fpdfsdk/pwl/cpwl_timer_handler.h"
13 
14 namespace {
15 
GetPWLTimeMap()16 std::map<int32_t, CPWL_Timer*>& GetPWLTimeMap() {
17   // Leak the object at shutdown.
18   static auto* timeMap = new std::map<int32_t, CPWL_Timer*>;
19   return *timeMap;
20 }
21 
22 }  // namespace
23 
CPWL_Timer(CPWL_TimerHandler * pAttached,CFX_SystemHandler * pSystemHandler)24 CPWL_Timer::CPWL_Timer(CPWL_TimerHandler* pAttached,
25                        CFX_SystemHandler* pSystemHandler)
26     : m_nTimerID(0), m_pAttached(pAttached), m_pSystemHandler(pSystemHandler) {
27   ASSERT(m_pAttached);
28   ASSERT(m_pSystemHandler);
29 }
30 
~CPWL_Timer()31 CPWL_Timer::~CPWL_Timer() {
32   KillPWLTimer();
33 }
34 
SetPWLTimer(int32_t nElapse)35 int32_t CPWL_Timer::SetPWLTimer(int32_t nElapse) {
36   if (m_nTimerID != 0)
37     KillPWLTimer();
38   m_nTimerID = m_pSystemHandler->SetTimer(nElapse, TimerProc);
39 
40   GetPWLTimeMap()[m_nTimerID] = this;
41   return m_nTimerID;
42 }
43 
KillPWLTimer()44 void CPWL_Timer::KillPWLTimer() {
45   if (m_nTimerID == 0)
46     return;
47 
48   m_pSystemHandler->KillTimer(m_nTimerID);
49   GetPWLTimeMap().erase(m_nTimerID);
50   m_nTimerID = 0;
51 }
52 
53 // static
TimerProc(int32_t idEvent)54 void CPWL_Timer::TimerProc(int32_t idEvent) {
55   auto it = GetPWLTimeMap().find(idEvent);
56   if (it == GetPWLTimeMap().end())
57     return;
58 
59   CPWL_Timer* pTimer = it->second;
60   if (pTimer->m_pAttached)
61     pTimer->m_pAttached->TimerProc();
62 }
63