1 // Copyright 2016 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #include "core/fxcrt/css/cfx_cssrulecollection.h" 8 9 #include <algorithm> 10 #include <utility> 11 12 #include "core/fxcrt/css/cfx_cssdeclaration.h" 13 #include "core/fxcrt/css/cfx_cssselector.h" 14 #include "core/fxcrt/css/cfx_cssstylerule.h" 15 #include "core/fxcrt/css/cfx_cssstylesheet.h" 16 #include "core/fxcrt/css/cfx_csssyntaxparser.h" 17 #include "third_party/base/ptr_util.h" 18 19 CFX_CSSRuleCollection::CFX_CSSRuleCollection() : m_iSelectors(0) {} 20 21 CFX_CSSRuleCollection::~CFX_CSSRuleCollection() { 22 Clear(); 23 } 24 25 void CFX_CSSRuleCollection::Clear() { 26 m_TagRules.clear(); 27 m_iSelectors = 0; 28 } 29 30 const std::vector<std::unique_ptr<CFX_CSSRuleCollection::Data>>* 31 CFX_CSSRuleCollection::GetTagRuleData(const WideString& tagname) const { 32 auto it = m_TagRules.find(FX_HashCode_GetW(tagname.c_str(), true)); 33 return it != m_TagRules.end() ? &it->second : nullptr; 34 } 35 36 void CFX_CSSRuleCollection::AddRulesFrom(const CFX_CSSStyleSheet* sheet) { 37 int32_t iRules = sheet->CountRules(); 38 for (int32_t j = 0; j < iRules; j++) 39 AddRulesFrom(sheet, sheet->GetRule(j)); 40 } 41 42 void CFX_CSSRuleCollection::AddRulesFrom(const CFX_CSSStyleSheet* pStyleSheet, 43 CFX_CSSStyleRule* pStyleRule) { 44 CFX_CSSDeclaration* pDeclaration = pStyleRule->GetDeclaration(); 45 int32_t iSelectors = pStyleRule->CountSelectorLists(); 46 for (int32_t i = 0; i < iSelectors; ++i) { 47 CFX_CSSSelector* pSelector = pStyleRule->GetSelectorList(i); 48 m_TagRules[pSelector->GetNameHash()].push_back( 49 pdfium::MakeUnique<Data>(pSelector, pDeclaration)); 50 m_iSelectors++; 51 } 52 } 53 54 CFX_CSSRuleCollection::Data::Data(CFX_CSSSelector* pSel, 55 CFX_CSSDeclaration* pDecl) 56 : pSelector(pSel), pDeclaration(pDecl) {} 57
