1  /* -*- Mode: C; indent-tabs-mode:nil; c-basic-offset: 8-*- */
       2  
       3  /* libcroco - Library for parsing and applying CSS
       4   * Copyright (C) 2006-2019 Free Software Foundation, Inc.
       5   *
       6   * This file is not part of the GNU gettext program, but is used with
       7   * GNU gettext.
       8   *
       9   * The original copyright notice is as follows:
      10   */
      11  
      12  /*
      13   * This file is part of The Croco Library
      14   *
      15   * Copyright (C) 2003-2004 Dodji Seketeli.  All Rights Reserved.
      16   *
      17   * This program is free software; you can redistribute it and/or
      18   * modify it under the terms of version 2.1 of the GNU Lesser General Public
      19   * License as published by the Free Software Foundation.
      20   *
      21   * This program is distributed in the hope that it will be useful,
      22   * but WITHOUT ANY WARRANTY; without even the implied warranty of
      23   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      24   * GNU General Public License for more details.
      25   *
      26   * You should have received a copy of the GNU Lesser General Public License
      27   * along with this program; if not, write to the Free Software
      28   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
      29   * USA
      30   *
      31   * Author: Dodji Seketeli
      32   */
      33  
      34  #ifndef __CR_SEL_ENG_H__
      35  #define __CR_SEL_ENG_H__
      36  
      37  #include "cr-utils.h"
      38  #include "cr-stylesheet.h"
      39  #include "cr-cascade.h"
      40  #include "cr-style.h"
      41  #include "cr-prop-list.h"
      42  
      43  #include <libxml/tree.h>
      44  
      45  /**
      46   *@file:
      47   *The declaration of the  #CRSelEng class.
      48   *The #CRSelEng is actually the "Selection Engine"
      49   *class.
      50   */
      51  
      52  G_BEGIN_DECLS
      53  
      54  typedef struct _CRSelEng CRSelEng ;
      55  typedef struct _CRSelEngPriv CRSelEngPriv ;
      56  
      57  /**
      58   *The Selection engine class.
      59   *The main service provided by this class, is
      60   *the ability to interpret a libcroco implementation
      61   *of css2 selectors, and given an xml node, say if
      62   *the selector matches the node or not.
      63   */
      64  struct _CRSelEng
      65  {
      66  	CRSelEngPriv *priv ;
      67  } ;
      68  
      69  
      70  typedef gboolean (*CRPseudoClassSelectorHandler) (CRSelEng* a_this,
      71                                                    CRAdditionalSel *a_add_sel,
      72                                                    xmlNode *a_node) ;
      73  CRSelEng * cr_sel_eng_new (void) ;
      74  
      75  enum CRStatus cr_sel_eng_register_pseudo_class_sel_handler (CRSelEng *a_this,
      76                                                              guchar *a_pseudo_class_sel_name,
      77                                                              enum CRPseudoType a_pseudo_class_type,
      78                                                              CRPseudoClassSelectorHandler a_handler) ;
      79  
      80  enum CRStatus cr_sel_eng_unregister_pseudo_class_sel_handler (CRSelEng *a_this,
      81                                                                guchar *a_pseudo_class_sel_name,
      82                                                                enum CRPseudoType a_pseudo_class_type) ;
      83  
      84  enum CRStatus cr_sel_eng_unregister_all_pseudo_class_sel_handlers (CRSelEng *a_this) ;
      85  
      86  enum CRStatus cr_sel_eng_get_pseudo_class_selector_handler (CRSelEng *a_this,
      87                                                              guchar *a_pseudo_class_sel_name,
      88                                                              enum CRPseudoType a_pseudo_class_type,
      89                                                              CRPseudoClassSelectorHandler *a_handler) ;
      90  
      91  enum CRStatus cr_sel_eng_matches_node (CRSelEng *a_this, 
      92                                         CRSimpleSel *a_sel,
      93                                         xmlNode *a_node, 
      94                                         gboolean *a_result) ;
      95  
      96  enum CRStatus cr_sel_eng_get_matched_rulesets (CRSelEng *a_this,
      97                                                 CRStyleSheet *a_sheet,
      98                                                 xmlNode *a_node,
      99                                                 CRStatement ***a_rulesets,
     100                                                 gulong *a_len) ;
     101  
     102  enum CRStatus
     103  cr_sel_eng_get_matched_properties_from_cascade  (CRSelEng *a_this,
     104                                                   CRCascade *a_cascade,
     105                                                   xmlNode *a_node,
     106                                                   CRPropList **a_props) ;
     107  
     108  enum CRStatus cr_sel_eng_get_matched_style (CRSelEng *a_this,
     109                                              CRCascade *a_cascade,
     110                                              xmlNode *a_node,
     111                                              CRStyle *a_parent_style,
     112                                              CRStyle **a_style,
     113                                              gboolean a_set_props_to_initial_values) ;
     114  
     115  void cr_sel_eng_destroy (CRSelEng *a_this) ;
     116  
     117  G_END_DECLS
     118  
     119  
     120  #endif/*__CR_SEL_ENG_H__*/