Move xfa/src up to xfa/.

xfa/src/fde/css/fde_csscache.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 "xfa/src/fde/css/fde_csscache.h"
-
-#include <algorithm>
-
-#include "core/include/fxcrt/fx_ext.h"
-
-FDE_CSSCacheItem::FDE_CSSCacheItem(IFDE_CSSStyleSheet* p)
-    : pStylesheet(p), dwActivity(0) {
-  FXSYS_assert(pStylesheet);
-  pStylesheet->AddRef();
-}
-FDE_CSSCacheItem::~FDE_CSSCacheItem() {
-  pStylesheet->Release();
-}
-IFDE_CSSStyleSheetCache* IFDE_CSSStyleSheetCache::Create() {
-  return new CFDE_CSSStyleSheetCache;
-}
-
-CFDE_CSSStyleSheetCache::CFDE_CSSStyleSheetCache()
-    : m_pFixedStore(NULL), m_iMaxItems(5) {}
-
-CFDE_CSSStyleSheetCache::~CFDE_CSSStyleSheetCache() {
-  for (const auto& pair : m_Stylesheets) {
-    FXTARGET_DeleteWith(FDE_CSSCacheItem, m_pFixedStore, pair.second);
-  }
-  m_Stylesheets.clear();
-  if (m_pFixedStore) {
-    m_pFixedStore->Release();
-  }
-}
-void CFDE_CSSStyleSheetCache::AddStyleSheet(const CFX_ByteStringC& szKey,
-                                            IFDE_CSSStyleSheet* pStyleSheet) {
-  FXSYS_assert(pStyleSheet != NULL);
-  if (m_pFixedStore == NULL) {
-    m_pFixedStore =
-        FX_CreateAllocator(FX_ALLOCTYPE_Fixed, std::max(10, m_iMaxItems),
-                           sizeof(FDE_CSSCacheItem));
-    FXSYS_assert(m_pFixedStore != NULL);
-  }
-  auto it = m_Stylesheets.find(szKey);
-  if (it != m_Stylesheets.end()) {
-    FDE_CSSCacheItem* pItem = it->second;
-    if (pItem->pStylesheet != pStyleSheet) {
-      pItem->pStylesheet->Release();
-      pItem->pStylesheet = pStyleSheet;
-      pItem->pStylesheet->AddRef();
-      pItem->dwActivity = 0;
-    }
-  } else {
-    while (static_cast<int32_t>(m_Stylesheets.size()) >= m_iMaxItems) {
-      RemoveLowestActivityItem();
-    }
-    m_Stylesheets[szKey] =
-        FXTARGET_NewWith(m_pFixedStore) FDE_CSSCacheItem(pStyleSheet);
-  }
-}
-IFDE_CSSStyleSheet* CFDE_CSSStyleSheetCache::GetStyleSheet(
-    const CFX_ByteStringC& szKey) const {
-  auto it = m_Stylesheets.find(szKey);
-  if (it == m_Stylesheets.end()) {
-    return nullptr;
-  }
-  FDE_CSSCacheItem* pItem = it->second;
-  pItem->dwActivity++;
-  pItem->pStylesheet->AddRef();
-  return pItem->pStylesheet;
-}
-void CFDE_CSSStyleSheetCache::RemoveStyleSheet(const CFX_ByteStringC& szKey) {
-  auto it = m_Stylesheets.find(szKey);
-  if (it == m_Stylesheets.end()) {
-    return;
-  }
-  FXTARGET_DeleteWith(FDE_CSSCacheItem, m_pFixedStore, it->second);
-  m_Stylesheets.erase(it);
-}
-void CFDE_CSSStyleSheetCache::RemoveLowestActivityItem() {
-  auto found = m_Stylesheets.end();
-  for (auto it = m_Stylesheets.begin(); it != m_Stylesheets.end(); ++it) {
-    switch (it->first.GetID()) {
-      case FXBSTR_ID('#', 'U', 'S', 'E'):
-      case FXBSTR_ID('#', 'A', 'G', 'E'):
-        continue;
-    }
-    if (found == m_Stylesheets.end() ||
-        it->second->dwActivity > found->second->dwActivity) {
-      found = it;
-    }
-  }
-  if (found != m_Stylesheets.end()) {
-    FXTARGET_DeleteWith(FDE_CSSCacheItem, m_pFixedStore, found->second);
-    m_Stylesheets.erase(found);
-  }
-}
-FDE_CSSTagCache::FDE_CSSTagCache(FDE_CSSTagCache* parent,
-                                 IFDE_CSSTagProvider* tag)
-    : pTag(tag),
-      pParent(parent),
-      dwIDHash(0),
-      dwTagHash(0),
-      iClassIndex(0),
-      dwClassHashs(1) {
-  FXSYS_assert(pTag != NULL);
-  CFX_WideStringC wsValue, wsName = pTag->GetTagName();
-  dwTagHash =
-      FX_HashCode_String_GetW(wsName.GetPtr(), wsName.GetLength(), TRUE);
-  FX_POSITION pos = pTag->GetFirstAttribute();
-  while (pos != NULL) {
-    pTag->GetNextAttribute(pos, wsName, wsValue);
-    FX_DWORD dwNameHash =
-        FX_HashCode_String_GetW(wsName.GetPtr(), wsName.GetLength(), TRUE);
-    static const FX_DWORD s_dwIDHash = FX_HashCode_String_GetW(L"id", 2, TRUE);
-    static const FX_DWORD s_dwClassHash =
-        FX_HashCode_String_GetW(L"class", 5, TRUE);
-    if (dwNameHash == s_dwClassHash) {
-      FX_DWORD dwHash =
-          FX_HashCode_String_GetW(wsValue.GetPtr(), wsValue.GetLength());
-      dwClassHashs.Add(dwHash);
-    } else if (dwNameHash == s_dwIDHash) {
-      dwIDHash = FX_HashCode_String_GetW(wsValue.GetPtr(), wsValue.GetLength());
-    }
-  }
-}
-FDE_CSSTagCache::FDE_CSSTagCache(const FDE_CSSTagCache& it)
-    : pTag(it.pTag),
-      pParent(it.pParent),
-      dwIDHash(it.dwIDHash),
-      dwTagHash(it.dwTagHash),
-      iClassIndex(0),
-      dwClassHashs(1) {
-  if (it.dwClassHashs.GetSize() > 0) {
-    dwClassHashs.Copy(it.dwClassHashs);
-  }
-}
-void CFDE_CSSAccelerator::OnEnterTag(IFDE_CSSTagProvider* pTag) {
-  FDE_CSSTagCache* pTop = GetTopElement();
-  FDE_CSSTagCache item(pTop, pTag);
-  m_Stack.Push(item);
-}
-void CFDE_CSSAccelerator::OnLeaveTag(IFDE_CSSTagProvider* pTag) {
-  FXSYS_assert(m_Stack.GetTopElement());
-  FXSYS_assert(m_Stack.GetTopElement()->GetTag() == pTag);
-  m_Stack.Pop();
-}