From 46ab5abf23910983663b3daeb6dc2f6a98ee24a8 Mon Sep 17 00:00:00 2001
From: Tom Sepez <tsepez@chromium.org>
Date: Tue, 9 Oct 2018 23:15:56 +0000
Subject: Remove some string comparisons in CPDF_Action.

We have a string to enum tokenizer. Use it.
Re-order .cpp to match .h in one place.

Change-Id: I6835826d5c7be599265ff05f2369da4f2bcc789c
Reviewed-on: https://pdfium-review.googlesource.com/c/43791
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
---
 core/fpdfdoc/cpdf_action.cpp | 70 +++++++++++++++++++++-----------------------
 1 file changed, 33 insertions(+), 37 deletions(-)

diff --git a/core/fpdfdoc/cpdf_action.cpp b/core/fpdfdoc/cpdf_action.cpp
index 6238b05299..6e9e9f7b68 100644
--- a/core/fpdfdoc/cpdf_action.cpp
+++ b/core/fpdfdoc/cpdf_action.cpp
@@ -27,14 +27,26 @@ CPDF_Action::CPDF_Action(const CPDF_Dictionary* pDict) : m_pDict(pDict) {}
 
 CPDF_Action::CPDF_Action(const CPDF_Action& that) = default;
 
-CPDF_Action::~CPDF_Action() {}
+CPDF_Action::~CPDF_Action() = default;
 
-CPDF_Dest CPDF_Action::GetDest(CPDF_Document* pDoc) const {
+CPDF_Action::ActionType CPDF_Action::GetType() const {
   if (!m_pDict)
-    return CPDF_Dest();
+    return Unknown;
+
+  ByteString csType = m_pDict->GetStringFor("S");
+  if (csType.IsEmpty())
+    return Unknown;
 
-  ByteString type = m_pDict->GetStringFor("S");
-  if (type != "GoTo" && type != "GoToR")
+  for (int i = 0; g_sATypes[i]; ++i) {
+    if (csType == g_sATypes[i])
+      return static_cast<ActionType>(i);
+  }
+  return Unknown;
+}
+
+CPDF_Dest CPDF_Action::GetDest(CPDF_Document* pDoc) const {
+  ActionType type = GetType();
+  if (type != GoTo && type != GoToR)
     return CPDF_Dest();
 
   const CPDF_Object* pDest = m_pDict->GetDirectObjectFor("D");
@@ -50,25 +62,10 @@ CPDF_Dest CPDF_Action::GetDest(CPDF_Document* pDoc) const {
   return CPDF_Dest();
 }
 
-CPDF_Action::ActionType CPDF_Action::GetType() const {
-  if (!m_pDict)
-    return Unknown;
-
-  ByteString csType = m_pDict->GetStringFor("S");
-  if (csType.IsEmpty())
-    return Unknown;
-
-  for (int i = 0; g_sATypes[i]; ++i) {
-    if (csType == g_sATypes[i])
-      return static_cast<ActionType>(i);
-  }
-  return Unknown;
-}
-
 WideString CPDF_Action::GetFilePath() const {
-  ByteString type = m_pDict->GetStringFor("S");
-  if (type != "GoToR" && type != "Launch" && type != "SubmitForm" &&
-      type != "ImportData") {
+  ActionType type = GetType();
+  if (type != GoToR && type != Launch && type != SubmitForm &&
+      type != ImportData) {
     return WideString();
   }
 
@@ -76,24 +73,23 @@ WideString CPDF_Action::GetFilePath() const {
   if (pFile)
     return CPDF_FileSpec(pFile).GetFileName();
 
-  if (type == "Launch") {
-    const CPDF_Dictionary* pWinDict = m_pDict->GetDictFor("Win");
-    if (pWinDict) {
-      return WideString::FromLocal(
-          pWinDict->GetStringFor(pdfium::stream::kF).AsStringView());
-    }
-  }
-  return WideString();
+  if (type != Launch)
+    return WideString();
+
+  const CPDF_Dictionary* pWinDict = m_pDict->GetDictFor("Win");
+  if (!pWinDict)
+    return WideString();
+
+  return WideString::FromLocal(
+      pWinDict->GetStringFor(pdfium::stream::kF).AsStringView());
 }
 
 ByteString CPDF_Action::GetURI(const CPDF_Document* pDoc) const {
-  ByteString csURI;
-  if (!m_pDict)
-    return csURI;
-  if (m_pDict->GetStringFor("S") != "URI")
-    return csURI;
+  ActionType type = GetType();
+  if (type != URI)
+    return ByteString();
 
-  csURI = m_pDict->GetStringFor("URI");
+  ByteString csURI = m_pDict->GetStringFor("URI");
   const CPDF_Dictionary* pRoot = pDoc->GetRoot();
   const CPDF_Dictionary* pURI = pRoot->GetDictFor("URI");
   if (pURI) {
-- 
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