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authornpm <npm@google.com>2016-07-20 10:48:27 -0700
committerCommit bot <commit-bot@chromium.org>2016-07-20 10:48:28 -0700
commit69f160df5a13bbf1eb3bd39e59c5890d212f98ad (patch)
tree06968a5f13ae63a93288711a6facc1e3a0b64b96 /xfa/fde/css/cfde_cssrulecollection.cpp
parent47228aceb86744f858ab8bfa98f3f8b62054dfae (diff)
downloadpdfium-69f160df5a13bbf1eb3bd39e59c5890d212f98ad.tar.xz
Move CSSRuleCollection class to its own file
Review-Url: https://codereview.chromium.org/2166833002
Diffstat (limited to 'xfa/fde/css/cfde_cssrulecollection.cpp')
-rw-r--r--xfa/fde/css/cfde_cssrulecollection.cpp146
1 files changed, 146 insertions, 0 deletions
diff --git a/xfa/fde/css/cfde_cssrulecollection.cpp b/xfa/fde/css/cfde_cssrulecollection.cpp
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+++ b/xfa/fde/css/cfde_cssrulecollection.cpp
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+// Copyright 2016 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/fde/css/fde_cssstyleselector.h"
+
+#include <algorithm>
+#include <memory>
+
+#include "xfa/fde/css/fde_csscache.h"
+#include "xfa/fde/css/fde_cssdeclaration.h"
+#include "xfa/fde/css/fde_cssstyleselector.h"
+#include "xfa/fde/css/fde_cssstylesheet.h"
+#include "xfa/fde/css/fde_csssyntax.h"
+#include "xfa/fxfa/app/xfa_textlayout.h"
+
+#define FDE_CSSUNIVERSALHASH ('*')
+
+void CFDE_CSSRuleCollection::Clear() {
+ m_IDRules.RemoveAll();
+ m_TagRules.RemoveAll();
+ m_ClassRules.RemoveAll();
+ m_pUniversalRules = nullptr;
+ m_pStaticStore = nullptr;
+ m_iSelectors = 0;
+}
+
+CFDE_CSSRuleCollection::CFDE_CSSRuleCollection()
+ : m_pStaticStore(nullptr),
+ m_pUniversalRules(nullptr),
+ m_pPersudoRules(nullptr),
+ m_iSelectors(0) {}
+
+CFDE_CSSRuleCollection::~CFDE_CSSRuleCollection() {
+ Clear();
+}
+
+void CFDE_CSSRuleCollection::AddRulesFrom(const CFDE_CSSStyleSheetArray& sheets,
+ uint32_t dwMediaList,
+ IFGAS_FontMgr* pFontMgr) {
+ int32_t iSheets = sheets.GetSize();
+ for (int32_t i = 0; i < iSheets; ++i) {
+ IFDE_CSSStyleSheet* pSheet = sheets.GetAt(i);
+ if (uint32_t dwMatchMedia = pSheet->GetMediaList() & dwMediaList) {
+ int32_t iRules = pSheet->CountRules();
+ for (int32_t j = 0; j < iRules; j++) {
+ AddRulesFrom(pSheet, pSheet->GetRule(j), dwMatchMedia, pFontMgr);
+ }
+ }
+ }
+}
+
+void CFDE_CSSRuleCollection::AddRulesFrom(IFDE_CSSStyleSheet* pStyleSheet,
+ IFDE_CSSRule* pRule,
+ uint32_t dwMediaList,
+ IFGAS_FontMgr* pFontMgr) {
+ switch (pRule->GetType()) {
+ case FDE_CSSRULETYPE_Style: {
+ IFDE_CSSStyleRule* pStyleRule = static_cast<IFDE_CSSStyleRule*>(pRule);
+ CFDE_CSSDeclaration* pDeclaration = pStyleRule->GetDeclaration();
+ int32_t iSelectors = pStyleRule->CountSelectorLists();
+ for (int32_t i = 0; i < iSelectors; ++i) {
+ CFDE_CSSSelector* pSelector = pStyleRule->GetSelectorList(i);
+ if (pSelector->GetType() == FDE_CSSSELECTORTYPE_Persudo) {
+ FDE_CSSRuleData* pData = NewRuleData(pSelector, pDeclaration);
+ AddRuleTo(m_pPersudoRules, pData);
+ continue;
+ }
+ if (pSelector->GetNameHash() != FDE_CSSUNIVERSALHASH) {
+ AddRuleTo(m_TagRules, pSelector->GetNameHash(), pSelector,
+ pDeclaration);
+ continue;
+ }
+ CFDE_CSSSelector* pNext = pSelector->GetNextSelector();
+ if (!pNext) {
+ FDE_CSSRuleData* pData = NewRuleData(pSelector, pDeclaration);
+ AddRuleTo(m_pUniversalRules, pData);
+ continue;
+ }
+ switch (pNext->GetType()) {
+ case FDE_CSSSELECTORTYPE_ID:
+ AddRuleTo(m_IDRules, pNext->GetNameHash(), pSelector, pDeclaration);
+ break;
+ case FDE_CSSSELECTORTYPE_Class:
+ AddRuleTo(m_ClassRules, pNext->GetNameHash(), pSelector,
+ pDeclaration);
+ break;
+ case FDE_CSSSELECTORTYPE_Descendant:
+ case FDE_CSSSELECTORTYPE_Element:
+ AddRuleTo(m_pUniversalRules, NewRuleData(pSelector, pDeclaration));
+ break;
+ default:
+ ASSERT(FALSE);
+ break;
+ }
+ }
+ } break;
+ case FDE_CSSRULETYPE_Media: {
+ IFDE_CSSMediaRule* pMediaRule = static_cast<IFDE_CSSMediaRule*>(pRule);
+ if (pMediaRule->GetMediaList() & dwMediaList) {
+ int32_t iRules = pMediaRule->CountRules();
+ for (int32_t i = 0; i < iRules; ++i) {
+ AddRulesFrom(pStyleSheet, pMediaRule->GetRule(i), dwMediaList,
+ pFontMgr);
+ }
+ }
+ } break;
+ default:
+ break;
+ }
+}
+
+void CFDE_CSSRuleCollection::AddRuleTo(CFX_MapPtrToPtr& map,
+ uint32_t dwKey,
+ CFDE_CSSSelector* pSel,
+ CFDE_CSSDeclaration* pDecl) {
+ void* pKey = (void*)(uintptr_t)dwKey;
+ FDE_CSSRuleData* pData = NewRuleData(pSel, pDecl);
+ FDE_CSSRuleData* pList = nullptr;
+ if (!map.Lookup(pKey, (void*&)pList)) {
+ map.SetAt(pKey, pData);
+ } else if (AddRuleTo(pList, pData)) {
+ map.SetAt(pKey, pList);
+ }
+}
+
+FX_BOOL CFDE_CSSRuleCollection::AddRuleTo(FDE_CSSRuleData*& pList,
+ FDE_CSSRuleData* pData) {
+ if (pList) {
+ pData->pNext = pList->pNext;
+ pList->pNext = pData;
+ return FALSE;
+ }
+
+ pList = pData;
+ return TRUE;
+}
+
+FDE_CSSRuleData* CFDE_CSSRuleCollection::NewRuleData(
+ CFDE_CSSSelector* pSel,
+ CFDE_CSSDeclaration* pDecl) {
+ return FXTARGET_NewWith(m_pStaticStore)
+ FDE_CSSRuleData(pSel, pDecl, ++m_iSelectors);
+}