From 9ca2b09126b80c03655f0eee1f02e1b2d0a18230 Mon Sep 17 00:00:00 2001
From: weili <weili@chromium.org>
Date: Thu, 21 Jul 2016 12:26:18 -0700
Subject: Remove the use of handler array in CPDFSDK_AnnotHandlerMgr

Use map to store and manage the handlers directly instead of needing
an extra array.

Review-Url: https://codereview.chromium.org/2166953005
---
 fpdfsdk/fsdk_annothandler.cpp       | 20 +++-----------------
 fpdfsdk/include/fsdk_annothandler.h |  6 +++---
 2 files changed, 6 insertions(+), 20 deletions(-)

diff --git a/fpdfsdk/fsdk_annothandler.cpp b/fpdfsdk/fsdk_annothandler.cpp
index 2185562668..f7dd531f35 100644
--- a/fpdfsdk/fsdk_annothandler.cpp
+++ b/fpdfsdk/fsdk_annothandler.cpp
@@ -40,32 +40,18 @@ CPDFSDK_AnnotHandlerMgr::CPDFSDK_AnnotHandlerMgr(CPDFDoc_Environment* pApp) {
 #endif  // PDF_ENABLE_XFA
 }
 
-CPDFSDK_AnnotHandlerMgr::~CPDFSDK_AnnotHandlerMgr() {
-  for (int i = 0; i < m_Handlers.GetSize(); i++) {
-    IPDFSDK_AnnotHandler* pHandler = m_Handlers.GetAt(i);
-    delete pHandler;
-  }
-  m_Handlers.RemoveAll();
-  m_mapType2Handler.clear();
-}
+CPDFSDK_AnnotHandlerMgr::~CPDFSDK_AnnotHandlerMgr() {}
 
 void CPDFSDK_AnnotHandlerMgr::RegisterAnnotHandler(
     IPDFSDK_AnnotHandler* pAnnotHandler) {
   ASSERT(!GetAnnotHandler(pAnnotHandler->GetType()));
 
-  m_Handlers.Add(pAnnotHandler);
-  m_mapType2Handler[pAnnotHandler->GetType()] = pAnnotHandler;
+  m_mapType2Handler[pAnnotHandler->GetType()].reset(pAnnotHandler);
 }
 
 void CPDFSDK_AnnotHandlerMgr::UnRegisterAnnotHandler(
     IPDFSDK_AnnotHandler* pAnnotHandler) {
   m_mapType2Handler.erase(pAnnotHandler->GetType());
-  for (int i = 0, sz = m_Handlers.GetSize(); i < sz; i++) {
-    if (m_Handlers.GetAt(i) == pAnnotHandler) {
-      m_Handlers.RemoveAt(i);
-      break;
-    }
-  }
 }
 
 CPDFSDK_Annot* CPDFSDK_AnnotHandlerMgr::NewAnnot(CPDF_Annot* pAnnot,
@@ -139,7 +125,7 @@ IPDFSDK_AnnotHandler* CPDFSDK_AnnotHandlerMgr::GetAnnotHandler(
 IPDFSDK_AnnotHandler* CPDFSDK_AnnotHandlerMgr::GetAnnotHandler(
     const CFX_ByteString& sType) const {
   auto it = m_mapType2Handler.find(sType);
-  return it != m_mapType2Handler.end() ? it->second : nullptr;
+  return it != m_mapType2Handler.end() ? it->second.get() : nullptr;
 }
 
 void CPDFSDK_AnnotHandlerMgr::Annot_OnDraw(CPDFSDK_PageView* pPageView,
diff --git a/fpdfsdk/include/fsdk_annothandler.h b/fpdfsdk/include/fsdk_annothandler.h
index 179843da8a..1e25538a32 100644
--- a/fpdfsdk/include/fsdk_annothandler.h
+++ b/fpdfsdk/include/fsdk_annothandler.h
@@ -8,6 +8,7 @@
 #define FPDFSDK_INCLUDE_FSDK_ANNOTHANDLER_H_
 
 #include <map>
+#include <memory>
 #include <vector>
 
 #include "core/fxcrt/include/fx_basic.h"
@@ -314,7 +315,6 @@ class CPDFSDK_XFAAnnotHandler : public IPDFSDK_AnnotHandler {
 };
 #endif  // PDF_ENABLE_XFA
 
-#define CBA_AnnotHandlerArray CFX_ArrayTemplate<IPDFSDK_AnnotHandler*>
 class CPDFSDK_AnnotHandlerMgr {
  public:
   // Destroy the handler
@@ -409,8 +409,8 @@ class CPDFSDK_AnnotHandlerMgr {
   CPDFSDK_Annot* GetNextAnnot(CPDFSDK_Annot* pSDKAnnot, FX_BOOL bNext);
 
  private:
-  CBA_AnnotHandlerArray m_Handlers;
-  std::map<CFX_ByteString, IPDFSDK_AnnotHandler*> m_mapType2Handler;
+  std::map<CFX_ByteString, std::unique_ptr<IPDFSDK_AnnotHandler>>
+      m_mapType2Handler;
   CPDFDoc_Environment* m_pApp;
 };
 
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