embedder_test_environment.cpp

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// Copyright 2020 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
#include "testing/embedder_test_environment.h"
 
#include <ostream>
 
#include "core/fxcrt/check.h"
#include "core/fxcrt/fx_system.h"
#include "public/fpdfview.h"
#include "testing/command_line_helpers.h"
 
#ifdef PDF_ENABLE_V8
#include "testing/v8_test_environment.h"
#endif  // PDF_ENABLE_V8
 
namespace {
 
EmbedderTestEnvironment* g_environment = nullptr;
 
}  // namespace
 
EmbedderTestEnvironment::EmbedderTestEnvironment()
    : renderer_type_(GetDefaultRendererType()) {
  DCHECK(!g_environment);
  g_environment = this;
}
 
EmbedderTestEnvironment::~EmbedderTestEnvironment() {
  DCHECK(g_environment);
  g_environment = nullptr;
}
 
// static
EmbedderTestEnvironment* EmbedderTestEnvironment::GetInstance() {
  return g_environment;
}
 
void EmbedderTestEnvironment::SetUp() {
  FPDF_LIBRARY_CONFIG config = {
      .version = 4,
      .m_pUserFontPaths = test_fonts_.font_paths(),
 
#ifdef PDF_ENABLE_V8
      .m_pIsolate = V8TestEnvironment::GetInstance()->isolate(),
      .m_v8EmbedderSlot = 0,
      .m_pPlatform = V8TestEnvironment::GetInstance()->platform(),
#else   // PDF_ENABLE_V8
      .m_pIsolate = nullptr,
      .m_v8EmbedderSlot = 0,
      .m_pPlatform = nullptr,
#endif  // PDF_ENABLE_V8
 
      .m_RendererType = renderer_type_,
  };
 
  FPDF_InitLibraryWithConfig(&config);
 
  test_fonts_.InstallFontMapper();
}
 
void EmbedderTestEnvironment::TearDown() {
  FPDF_DestroyLibrary();
}
 
void EmbedderTestEnvironment::AddFlags(int argc, char** argv) {
  for (int i = 1; i < argc; ++i)
    AddFlag(argv[i]);
}
 
void EmbedderTestEnvironment::AddFlag(const std::string& flag) {
  if (flag == "--write-pngs") {
    write_pngs_ = true;
    return;
  }
#if defined(PDF_USE_SKIA)
  std::string value;
  if (ParseSwitchKeyValue(flag, "--use-renderer=", &value)) {
    if (value == "agg") {
      renderer_type_ = FPDF_RENDERERTYPE_AGG;
    } else if (value == "skia") {
      renderer_type_ = FPDF_RENDERERTYPE_SKIA;
    } else {
      std::cerr << "Invalid --use-renderer argument, value must be one of agg "
                   "or skia\n";
    }
    return;
  }
#endif  // defined(PDF_USE_SKIA)
 
  std::cerr << "Unknown flag: " << flag << "\n";
}