Cleanup some xfa/fxfa code.

This CL moves the .h files to have names corresponding to the contained
classes. The .cpp files are moved alongside the .h files. Any extra
classes in the .h files have been split into their own files.

Change-Id: I14b4efc02417f0df946500e87b6c502e77020db8
Reviewed-on: https://pdfium-review.googlesource.com/3160
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Nicolás Peña <npm@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>

1 files changed, 162 insertions, 0 deletions

diff --git a/xfa/fxfa/cxfa_ffapp.cpp b/xfa/fxfa/cxfa_ffapp.cpp
new file mode 100644
index 0000000000..40341ad90c
--- /dev/null
+++ b/xfa/fxfa/cxfa_ffapp.cpp
@@ -0,0 +1,162 @@
+// 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 "xfa/fxfa/cxfa_ffapp.h"
+
+#include <algorithm>
+#include <memory>
+#include <utility>
+#include <vector>
+
+#include "third_party/base/ptr_util.h"
+#include "third_party/base/stl_util.h"
+#include "xfa/fgas/font/cfgas_fontmgr.h"
+#include "xfa/fwl/cfwl_notedriver.h"
+#include "xfa/fwl/cfwl_widgetmgr.h"
+#include "xfa/fxfa/app/xfa_fwladapter.h"
+#include "xfa/fxfa/app/xfa_fwltheme.h"
+#include "xfa/fxfa/cxfa_ffdoc.h"
+#include "xfa/fxfa/cxfa_ffdochandler.h"
+#include "xfa/fxfa/cxfa_ffwidgethandler.h"
+#include "xfa/fxfa/cxfa_fontmgr.h"
+
+namespace {
+
+class CXFA_FileRead : public IFX_SeekableReadStream {
+ public:
+  explicit CXFA_FileRead(const std::vector<CPDF_Stream*>& streams);
+  ~CXFA_FileRead() override;
+
+  // IFX_SeekableReadStream
+  FX_FILESIZE GetSize() override;
+  bool ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override;
+
+ private:
+  std::vector<std::unique_ptr<CPDF_StreamAcc>> m_Data;
+};
+
+CXFA_FileRead::CXFA_FileRead(const std::vector<CPDF_Stream*>& streams) {
+  for (CPDF_Stream* pStream : streams) {
+    m_Data.push_back(pdfium::MakeUnique<CPDF_StreamAcc>());
+    m_Data.back()->LoadAllData(pStream);
+  }
+}
+
+CXFA_FileRead::~CXFA_FileRead() {}
+
+FX_FILESIZE CXFA_FileRead::GetSize() {
+  uint32_t dwSize = 0;
+  for (const auto& acc : m_Data)
+    dwSize += acc->GetSize();
+  return dwSize;
+}
+
+bool CXFA_FileRead::ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) {
+  int32_t iCount = pdfium::CollectionSize<int32_t>(m_Data);
+  int32_t index = 0;
+  while (index < iCount) {
+    const auto& acc = m_Data[index];
+    FX_FILESIZE dwSize = acc->GetSize();
+    if (offset < dwSize)
+      break;
+
+    offset -= dwSize;
+    index++;
+  }
+  while (index < iCount) {
+    const auto& acc = m_Data[index];
+    uint32_t dwSize = acc->GetSize();
+    size_t dwRead = std::min(size, static_cast<size_t>(dwSize - offset));
+    FXSYS_memcpy(buffer, acc->GetData() + offset, dwRead);
+    size -= dwRead;
+    if (size == 0)
+      return true;
+
+    buffer = (uint8_t*)buffer + dwRead;
+    offset = 0;
+    index++;
+  }
+  return false;
+}
+
+}  // namespace
+
+CFX_RetainPtr<IFX_SeekableReadStream> MakeSeekableReadStream(
+    const std::vector<CPDF_Stream*>& streams) {
+  return CFX_RetainPtr<IFX_SeekableReadStream>(new CXFA_FileRead(streams));
+}
+
+CXFA_FFApp::CXFA_FFApp(IXFA_AppProvider* pProvider)
+    : m_pProvider(pProvider),
+      m_pWidgetMgrDelegate(nullptr),
+      m_pFWLApp(new CFWL_App(this)) {}
+
+CXFA_FFApp::~CXFA_FFApp() {}
+
+CXFA_FFDocHandler* CXFA_FFApp::GetDocHandler() {
+  if (!m_pDocHandler)
+    m_pDocHandler = pdfium::MakeUnique<CXFA_FFDocHandler>();
+  return m_pDocHandler.get();
+}
+
+std::unique_ptr<CXFA_FFDoc> CXFA_FFApp::CreateDoc(
+    IXFA_DocEnvironment* pDocEnvironment,
+    CPDF_Document* pPDFDoc) {
+  if (!pPDFDoc)
+    return nullptr;
+
+  auto pDoc = pdfium::MakeUnique<CXFA_FFDoc>(this, pDocEnvironment);
+  if (!pDoc->OpenDoc(pPDFDoc))
+    return nullptr;
+
+  return pDoc;
+}
+
+void CXFA_FFApp::SetDefaultFontMgr(std::unique_ptr<CXFA_DefFontMgr> pFontMgr) {
+  if (!m_pFontMgr)
+    m_pFontMgr = pdfium::MakeUnique<CXFA_FontMgr>();
+  m_pFontMgr->SetDefFontMgr(std::move(pFontMgr));
+}
+
+CXFA_FontMgr* CXFA_FFApp::GetXFAFontMgr() const {
+  return m_pFontMgr.get();
+}
+
+CFGAS_FontMgr* CXFA_FFApp::GetFDEFontMgr() {
+  if (!m_pFDEFontMgr) {
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
+    m_pFDEFontMgr = CFGAS_FontMgr::Create(FX_GetDefFontEnumerator());
+#else
+    m_pFontSource = pdfium::MakeUnique<CFX_FontSourceEnum_File>();
+    m_pFDEFontMgr = CFGAS_FontMgr::Create(m_pFontSource.get());
+#endif
+  }
+  return m_pFDEFontMgr.get();
+}
+
+CXFA_FWLTheme* CXFA_FFApp::GetFWLTheme() {
+  if (!m_pFWLTheme)
+    m_pFWLTheme = pdfium::MakeUnique<CXFA_FWLTheme>(this);
+  return m_pFWLTheme.get();
+}
+
+CXFA_FWLAdapterWidgetMgr* CXFA_FFApp::GetWidgetMgr(
+    CFWL_WidgetMgrDelegate* pDelegate) {
+  if (!m_pAdapterWidgetMgr) {
+    m_pAdapterWidgetMgr = pdfium::MakeUnique<CXFA_FWLAdapterWidgetMgr>();
+    pDelegate->OnSetCapability(FWL_WGTMGR_DisableForm);
+    m_pWidgetMgrDelegate = pDelegate;
+  }
+  return m_pAdapterWidgetMgr.get();
+}
+
+IFWL_AdapterTimerMgr* CXFA_FFApp::GetTimerMgr() const {
+  return m_pProvider->GetTimerMgr();
+}
+
+void CXFA_FFApp::ClearEventTargets() {
+  m_pFWLApp->GetNoteDriver()->ClearEventTargets(false);
+}