274 lines
10 KiB
C++
274 lines
10 KiB
C++
// Copyright 2016 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "public/fpdf_doc.h"
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#include <memory>
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#include <vector>
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#include "core/fpdfapi/cpdf_modulemgr.h"
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#include "core/fpdfapi/parser/cpdf_array.h"
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#include "core/fpdfapi/parser/cpdf_document.h"
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#include "core/fpdfapi/parser/cpdf_name.h"
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#include "core/fpdfapi/parser/cpdf_null.h"
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#include "core/fpdfapi/parser/cpdf_number.h"
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#include "core/fpdfapi/parser/cpdf_parser.h"
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#include "core/fpdfapi/parser/cpdf_reference.h"
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#include "core/fpdfapi/parser/cpdf_string.h"
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#include "core/fpdfdoc/cpdf_dest.h"
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#include "testing/gtest/include/gtest/gtest.h"
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#include "testing/test_support.h"
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#include "third_party/base/ptr_util.h"
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#ifdef PDF_ENABLE_XFA
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#include "fpdfsdk/fpdfxfa/cpdfxfa_context.h"
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#endif // PDF_ENABLE_XFA
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class CPDF_TestDocument : public CPDF_Document {
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public:
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CPDF_TestDocument() : CPDF_Document(nullptr) {}
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void SetRoot(CPDF_Dictionary* root) { m_pRootDict = root; }
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CPDF_IndirectObjectHolder* GetHolder() { return this; }
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};
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#ifdef PDF_ENABLE_XFA
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class CPDF_TestXFAContext : public CPDFXFA_Context {
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public:
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CPDF_TestXFAContext()
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: CPDFXFA_Context(pdfium::MakeUnique<CPDF_TestDocument>()) {}
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void SetRoot(CPDF_Dictionary* root) {
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reinterpret_cast<CPDF_TestDocument*>(GetPDFDoc())->SetRoot(root);
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}
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CPDF_IndirectObjectHolder* GetHolder() { return GetPDFDoc(); }
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};
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using CPDF_TestPdfDocument = CPDF_TestXFAContext;
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#else // PDF_ENABLE_XFA
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using CPDF_TestPdfDocument = CPDF_TestDocument;
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#endif // PDF_ENABLE_XFA
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class PDFDocTest : public testing::Test {
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public:
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struct DictObjInfo {
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uint32_t num;
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CPDF_Dictionary* obj;
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};
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void SetUp() override {
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// We don't need page module or render module, but
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// initialize them to keep the code sane.
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CPDF_ModuleMgr* module_mgr = CPDF_ModuleMgr::Get();
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module_mgr->InitPageModule();
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m_pDoc = pdfium::MakeUnique<CPDF_TestPdfDocument>();
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m_pIndirectObjs = m_pDoc->GetHolder();
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// Setup the root directory.
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m_pRootObj = pdfium::MakeUnique<CPDF_Dictionary>();
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m_pDoc->SetRoot(m_pRootObj.get());
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}
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void TearDown() override {
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m_pRootObj.reset();
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m_pIndirectObjs = nullptr;
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m_pDoc.reset();
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CPDF_ModuleMgr::Destroy();
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}
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std::vector<DictObjInfo> CreateDictObjs(int num) {
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std::vector<DictObjInfo> info;
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for (int i = 0; i < num; ++i) {
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// Objects created will be released by the document.
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CPDF_Dictionary* obj = m_pIndirectObjs->NewIndirect<CPDF_Dictionary>();
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info.push_back({obj->GetObjNum(), obj});
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}
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return info;
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}
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protected:
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std::unique_ptr<CPDF_TestPdfDocument> m_pDoc;
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CPDF_IndirectObjectHolder* m_pIndirectObjs;
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std::unique_ptr<CPDF_Dictionary> m_pRootObj;
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};
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TEST_F(PDFDocTest, FindBookmark) {
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{
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// No bookmark information.
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std::unique_ptr<unsigned short, pdfium::FreeDeleter> title =
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GetFPDFWideString(L"");
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EXPECT_EQ(nullptr, FPDFBookmark_Find(m_pDoc.get(), title.get()));
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title = GetFPDFWideString(L"Preface");
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EXPECT_EQ(nullptr, FPDFBookmark_Find(m_pDoc.get(), title.get()));
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}
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{
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// Empty bookmark tree.
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m_pRootObj->SetNewFor<CPDF_Dictionary>("Outlines");
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std::unique_ptr<unsigned short, pdfium::FreeDeleter> title =
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GetFPDFWideString(L"");
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EXPECT_EQ(nullptr, FPDFBookmark_Find(m_pDoc.get(), title.get()));
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title = GetFPDFWideString(L"Preface");
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EXPECT_EQ(nullptr, FPDFBookmark_Find(m_pDoc.get(), title.get()));
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}
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{
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// Check on a regular bookmark tree.
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auto bookmarks = CreateDictObjs(3);
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bookmarks[1].obj->SetNewFor<CPDF_String>("Title", L"Chapter 1");
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bookmarks[1].obj->SetNewFor<CPDF_Reference>("Parent", m_pIndirectObjs,
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bookmarks[0].num);
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bookmarks[1].obj->SetNewFor<CPDF_Reference>("Next", m_pIndirectObjs,
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bookmarks[2].num);
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bookmarks[2].obj->SetNewFor<CPDF_String>("Title", L"Chapter 2");
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bookmarks[2].obj->SetNewFor<CPDF_Reference>("Parent", m_pIndirectObjs,
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bookmarks[0].num);
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bookmarks[2].obj->SetNewFor<CPDF_Reference>("Prev", m_pIndirectObjs,
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bookmarks[1].num);
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bookmarks[0].obj->SetNewFor<CPDF_Name>("Type", "Outlines");
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bookmarks[0].obj->SetNewFor<CPDF_Number>("Count", 2);
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bookmarks[0].obj->SetNewFor<CPDF_Reference>("First", m_pIndirectObjs,
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bookmarks[1].num);
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bookmarks[0].obj->SetNewFor<CPDF_Reference>("Last", m_pIndirectObjs,
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bookmarks[2].num);
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m_pRootObj->SetNewFor<CPDF_Reference>("Outlines", m_pIndirectObjs,
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bookmarks[0].num);
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// Title with no match.
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std::unique_ptr<unsigned short, pdfium::FreeDeleter> title =
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GetFPDFWideString(L"Chapter 3");
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EXPECT_EQ(nullptr, FPDFBookmark_Find(m_pDoc.get(), title.get()));
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// Title with partial match only.
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title = GetFPDFWideString(L"Chapter");
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EXPECT_EQ(nullptr, FPDFBookmark_Find(m_pDoc.get(), title.get()));
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// Title with a match.
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title = GetFPDFWideString(L"Chapter 2");
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EXPECT_EQ(bookmarks[2].obj, FPDFBookmark_Find(m_pDoc.get(), title.get()));
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// Title match is case insensitive.
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title = GetFPDFWideString(L"cHaPter 2");
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EXPECT_EQ(bookmarks[2].obj, FPDFBookmark_Find(m_pDoc.get(), title.get()));
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}
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{
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// Circular bookmarks in depth.
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auto bookmarks = CreateDictObjs(3);
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bookmarks[1].obj->SetNewFor<CPDF_String>("Title", L"Chapter 1");
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bookmarks[1].obj->SetNewFor<CPDF_Reference>("Parent", m_pIndirectObjs,
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bookmarks[0].num);
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bookmarks[1].obj->SetNewFor<CPDF_Reference>("First", m_pIndirectObjs,
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bookmarks[2].num);
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bookmarks[2].obj->SetNewFor<CPDF_String>("Title", L"Chapter 2");
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bookmarks[2].obj->SetNewFor<CPDF_Reference>("Parent", m_pIndirectObjs,
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bookmarks[1].num);
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bookmarks[2].obj->SetNewFor<CPDF_Reference>("First", m_pIndirectObjs,
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bookmarks[1].num);
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bookmarks[0].obj->SetNewFor<CPDF_Name>("Type", "Outlines");
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bookmarks[0].obj->SetNewFor<CPDF_Number>("Count", 2);
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bookmarks[0].obj->SetNewFor<CPDF_Reference>("First", m_pIndirectObjs,
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bookmarks[1].num);
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bookmarks[0].obj->SetNewFor<CPDF_Reference>("Last", m_pIndirectObjs,
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bookmarks[2].num);
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m_pRootObj->SetNewFor<CPDF_Reference>("Outlines", m_pIndirectObjs,
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bookmarks[0].num);
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// Title with no match.
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std::unique_ptr<unsigned short, pdfium::FreeDeleter> title =
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GetFPDFWideString(L"Chapter 3");
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EXPECT_EQ(nullptr, FPDFBookmark_Find(m_pDoc.get(), title.get()));
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// Title with a match.
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title = GetFPDFWideString(L"Chapter 2");
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EXPECT_EQ(bookmarks[2].obj, FPDFBookmark_Find(m_pDoc.get(), title.get()));
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}
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{
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// Circular bookmarks in breadth.
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auto bookmarks = CreateDictObjs(4);
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bookmarks[1].obj->SetNewFor<CPDF_String>("Title", L"Chapter 1");
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bookmarks[1].obj->SetNewFor<CPDF_Reference>("Parent", m_pIndirectObjs,
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bookmarks[0].num);
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bookmarks[1].obj->SetNewFor<CPDF_Reference>("Next", m_pIndirectObjs,
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bookmarks[2].num);
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bookmarks[2].obj->SetNewFor<CPDF_String>("Title", L"Chapter 2");
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bookmarks[2].obj->SetNewFor<CPDF_Reference>("Parent", m_pIndirectObjs,
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bookmarks[0].num);
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bookmarks[2].obj->SetNewFor<CPDF_Reference>("Next", m_pIndirectObjs,
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bookmarks[3].num);
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bookmarks[3].obj->SetNewFor<CPDF_String>("Title", L"Chapter 3");
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bookmarks[3].obj->SetNewFor<CPDF_Reference>("Parent", m_pIndirectObjs,
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bookmarks[0].num);
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bookmarks[3].obj->SetNewFor<CPDF_Reference>("Next", m_pIndirectObjs,
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bookmarks[1].num);
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bookmarks[0].obj->SetNewFor<CPDF_Name>("Type", "Outlines");
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bookmarks[0].obj->SetNewFor<CPDF_Number>("Count", 2);
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bookmarks[0].obj->SetNewFor<CPDF_Reference>("First", m_pIndirectObjs,
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bookmarks[1].num);
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bookmarks[0].obj->SetNewFor<CPDF_Reference>("Last", m_pIndirectObjs,
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bookmarks[2].num);
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m_pRootObj->SetNewFor<CPDF_Reference>("Outlines", m_pIndirectObjs,
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bookmarks[0].num);
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// Title with no match.
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std::unique_ptr<unsigned short, pdfium::FreeDeleter> title =
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GetFPDFWideString(L"Chapter 8");
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EXPECT_EQ(nullptr, FPDFBookmark_Find(m_pDoc.get(), title.get()));
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// Title with a match.
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title = GetFPDFWideString(L"Chapter 3");
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EXPECT_EQ(bookmarks[3].obj, FPDFBookmark_Find(m_pDoc.get(), title.get()));
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}
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}
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TEST_F(PDFDocTest, GetLocationInPage) {
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auto array = pdfium::MakeUnique<CPDF_Array>();
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array->AddNew<CPDF_Number>(0); // Page Index.
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array->AddNew<CPDF_Name>("XYZ");
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array->AddNew<CPDF_Number>(4); // X
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array->AddNew<CPDF_Number>(5); // Y
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array->AddNew<CPDF_Number>(6); // Zoom.
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FPDF_BOOL hasX;
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FPDF_BOOL hasY;
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FPDF_BOOL hasZoom;
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FS_FLOAT x;
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FS_FLOAT y;
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FS_FLOAT zoom;
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EXPECT_TRUE(FPDFDest_GetLocationInPage(array.get(), &hasX, &hasY, &hasZoom,
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&x, &y, &zoom));
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EXPECT_TRUE(hasX);
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EXPECT_TRUE(hasY);
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EXPECT_TRUE(hasZoom);
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EXPECT_EQ(4, x);
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EXPECT_EQ(5, y);
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EXPECT_EQ(6, zoom);
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array->SetNewAt<CPDF_Null>(2);
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array->SetNewAt<CPDF_Null>(3);
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array->SetNewAt<CPDF_Null>(4);
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EXPECT_TRUE(FPDFDest_GetLocationInPage(array.get(), &hasX, &hasY, &hasZoom,
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&x, &y, &zoom));
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EXPECT_FALSE(hasX);
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EXPECT_FALSE(hasY);
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EXPECT_FALSE(hasZoom);
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array = pdfium::MakeUnique<CPDF_Array>();
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EXPECT_FALSE(FPDFDest_GetLocationInPage(array.get(), &hasX, &hasY, &hasZoom,
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&x, &y, &zoom));
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}
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