src/plugins/litehtml_viewer/litehtml/media_query.h

   1 #pragma once\r
   2 \r
   3 namespace litehtml\r
   4 {\r
   5         struct media_query_expression\r
   6         {\r
   7                 typedef std::vector<media_query_expression>     vector;\r
   8                 media_feature   feature;\r
   9                 int                             val;\r
  10                 int                             val2;\r
  11                 bool                    check_as_bool;\r
  12                 \r
  13                 media_query_expression()\r
  14                 {\r
  15                         check_as_bool   = false;\r
  16                         feature                 = media_feature_none;\r
  17                         val                             = 0;\r
  18                         val2                    = 0;\r
  19                 }\r
  20 \r
  21                 bool check(const media_features& features) const;\r
  22         };\r
  23 \r
  24         class media_query\r
  25         {\r
  26         public:\r
  27                 typedef std::shared_ptr<media_query>    ptr;\r
  28                 typedef std::vector<media_query::ptr>   vector;\r
  29         private:\r
  30                 media_query_expression::vector  m_expressions;\r
  31                 bool                                                    m_not;\r
  32                 media_type                                              m_media_type;\r
  33         public:\r
  34                 media_query();\r
  35                 media_query(const media_query& val);\r
  36 \r
  37                 static media_query::ptr create_from_string(const tstring& str, const std::shared_ptr<document>& doc);\r
  38                 bool check(const media_features& features) const;\r
  39         };\r
  40 \r
  41         class media_query_list\r
  42         {\r
  43         public:\r
  44                 typedef std::shared_ptr<media_query_list>       ptr;\r
  45                 typedef std::vector<media_query_list::ptr>      vector;\r
  46         private:\r
  47                 media_query::vector     m_queries;\r
  48                 bool                            m_is_used;\r
  49         public:\r
  50                 media_query_list();\r
  51                 media_query_list(const media_query_list& val);\r
  52 \r
  53                 static media_query_list::ptr create_from_string(const tstring& str, const std::shared_ptr<document>& doc);\r
  54                 bool is_used() const;\r
  55                 bool apply_media_features(const media_features& features);      // returns true if the m_is_used changed\r
  56         };\r
  57 \r
  58         inline media_query_list::media_query_list(const media_query_list& val)\r
  59         {\r
  60                 m_is_used       = val.m_is_used;\r
  61                 m_queries       = val.m_queries;\r
  62         }\r
  63 \r
  64         inline media_query_list::media_query_list()\r
  65         {\r
  66                 m_is_used = false;\r
  67         }\r
  68 \r
  69         inline bool media_query_list::is_used() const\r
  70         {\r
  71                 return m_is_used;\r
  72         }\r
  73 \r
  74 }