core/src/fpdfapi/fpdf_basic_module.cpp

// Copyright 2014 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.

// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com

#include "../../include/fxcodec/fx_codec.h"
#include "../../include/fpdfapi/fpdf_module.h"

namespace {

CPDF_ModuleMgr* g_FPDFAPI_pDefaultMgr = nullptr;

const char kAddinNameCJK[] = "Eastern Asian Language Support";

}  // namespace

// static
CPDF_ModuleMgr* CPDF_ModuleMgr::Get() {
  return g_FPDFAPI_pDefaultMgr;
}

// static
void CPDF_ModuleMgr::Create() {
  ASSERT(!g_FPDFAPI_pDefaultMgr);
  g_FPDFAPI_pDefaultMgr = new CPDF_ModuleMgr;
}

// static
void CPDF_ModuleMgr::Destroy() {
  delete g_FPDFAPI_pDefaultMgr;
  g_FPDFAPI_pDefaultMgr = nullptr;
}

CPDF_ModuleMgr::CPDF_ModuleMgr() : m_pCodecModule(nullptr) {}

CPDF_ModuleMgr::~CPDF_ModuleMgr() {}

void CPDF_ModuleMgr::SetDownloadCallback(
    FX_BOOL (*callback)(const FX_CHAR* module_name)) {
  m_pDownloadCallback = callback;
}
FX_BOOL CPDF_ModuleMgr::DownloadModule(const FX_CHAR* module_name) {
  if (m_pDownloadCallback == NULL) {
    return FALSE;
  }
  return m_pDownloadCallback(module_name);
}
void CPDF_ModuleMgr::NotifyModuleAvailable(const FX_CHAR* module_name) {
  if (FXSYS_strcmp(module_name, kAddinNameCJK) == 0) {
    m_pPageModule->NotifyCJKAvailable();
  }
}
void CPDF_ModuleMgr::RegisterSecurityHandler(
    const FX_CHAR* filter,
    CPDF_SecurityHandler* (*CreateHandler)(void* param),
    void* param) {
  if (CreateHandler == NULL) {
    m_SecurityHandlerMap.RemoveKey(filter);
  } else {
    m_SecurityHandlerMap.SetAt(filter, (void*)CreateHandler);
  }
  if (param) {
    m_SecurityHandlerMap.SetAt(FX_BSTRC("_param_") + filter, param);
  }
}
void CPDF_ModuleMgr::SetPrivateData(void* module_id,
                                    void* pData,
                                    PD_CALLBACK_FREEDATA callback) {
  m_privateData.SetPrivateData(module_id, pData, callback);
}
void* CPDF_ModuleMgr::GetPrivateData(void* module_id) {
  return m_privateData.GetPrivateData(module_id);
}
CPDF_SecurityHandler* CPDF_ModuleMgr::CreateSecurityHandler(
    const FX_CHAR* filter) {
  CPDF_SecurityHandler* (*CreateHandler)(void*) = NULL;
  if (!m_SecurityHandlerMap.Lookup(filter, (void*&)CreateHandler)) {
    return NULL;
  }
  if (CreateHandler == NULL) {
    return NULL;
  }
  void* param = NULL;
  m_SecurityHandlerMap.Lookup(FX_BSTRC("_param_") + filter, param);
  return CreateHandler(param);
}
ICodec_FaxModule* CPDF_ModuleMgr::GetFaxModule() {
  return m_pCodecModule ? m_pCodecModule->GetFaxModule() : NULL;
}
ICodec_JpegModule* CPDF_ModuleMgr::GetJpegModule() {
  return m_pCodecModule ? m_pCodecModule->GetJpegModule() : NULL;
}
ICodec_JpxModule* CPDF_ModuleMgr::GetJpxModule() {
  return m_pCodecModule ? m_pCodecModule->GetJpxModule() : NULL;
}
ICodec_Jbig2Module* CPDF_ModuleMgr::GetJbig2Module() {
  return m_pCodecModule ? m_pCodecModule->GetJbig2Module() : NULL;
}
ICodec_IccModule* CPDF_ModuleMgr::GetIccModule() {
  return m_pCodecModule ? m_pCodecModule->GetIccModule() : NULL;
}
ICodec_FlateModule* CPDF_ModuleMgr::GetFlateModule() {
  return m_pCodecModule ? m_pCodecModule->GetFlateModule() : NULL;
}