Add FPDFDest_GetLocationInPage API

fpdfsdk/fpdfdoc_unittest.cpp

 // Copyright 2016 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.
 
 #include "public/fpdf_doc.h"
 
 #include <memory>
 #include <vector>
 
 #include "core/fpdfapi/cpdf_modulemgr.h"
+#include "core/fpdfapi/parser/cpdf_array.h"
 #include "core/fpdfapi/parser/cpdf_document.h"
 #include "core/fpdfapi/parser/cpdf_name.h"
+#include "core/fpdfapi/parser/cpdf_null.h"
 #include "core/fpdfapi/parser/cpdf_number.h"
 #include "core/fpdfapi/parser/cpdf_parser.h"
 #include "core/fpdfapi/parser/cpdf_reference.h"
 #include "core/fpdfapi/parser/cpdf_string.h"
+#include "core/fpdfdoc/cpdf_dest.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/test_support.h"
 #include "third_party/base/ptr_util.h"
 
 #ifdef PDF_ENABLE_XFA
 #include "fpdfsdk/fpdfxfa/cpdfxfa_context.h"
 #endif  // PDF_ENABLE_XFA
 
 class CPDF_TestDocument : public CPDF_Document {
  public:
@@ skipping 196 matching lines @@
     // Title with no match.
     std::unique_ptr<unsigned short, pdfium::FreeDeleter> title =
         GetFPDFWideString(L"Chapter 8");
     EXPECT_EQ(nullptr, FPDFBookmark_Find(m_pDoc.get(), title.get()));
 
     // Title with a match.
     title = GetFPDFWideString(L"Chapter 3");
     EXPECT_EQ(bookmarks[3].obj, FPDFBookmark_Find(m_pDoc.get(), title.get()));
   }
 }
+
+TEST_F(PDFDocTest, GetLocationInPage) {
+  auto array = pdfium::MakeUnique<CPDF_Array>();
+  array->AddInteger(0);  // Page Index.
+  array->AddName("XYZ");
+  array->AddNumber(4);  // X
+  array->AddNumber(5);  // Y
+  array->AddNumber(6);  // Zoom.
+
+  FPDF_BOOL hasX;
+  FPDF_BOOL hasY;
+  FPDF_BOOL hasZoom;
+  FS_FLOAT x;
+  FS_FLOAT y;
+  FS_FLOAT zoom;
+
+  EXPECT_TRUE(FPDFDest_GetLocationInPage(array.get(), &hasX, &hasY, &hasZoom,
+                                         &x, &y, &zoom));
+  EXPECT_TRUE(hasX);
+  EXPECT_TRUE(hasY);
+  EXPECT_TRUE(hasZoom);
+  EXPECT_EQ(4, x);
+  EXPECT_EQ(5, y);
+  EXPECT_EQ(6, zoom);
+
+  array->SetAt(2, new CPDF_Null);
+  array->SetAt(3, new CPDF_Null);
+  array->SetAt(4, new CPDF_Null);
+  EXPECT_TRUE(FPDFDest_GetLocationInPage(array.get(), &hasX, &hasY, &hasZoom,
+                                         &x, &y, &zoom));
+  EXPECT_FALSE(hasX);
+  EXPECT_FALSE(hasY);
+  EXPECT_FALSE(hasZoom);
+
+  array = pdfium::MakeUnique<CPDF_Array>();
+  EXPECT_FALSE(FPDFDest_GetLocationInPage(array.get(), &hasX, &hasY, &hasZoom,
+                                          &x, &y, &zoom));
+}