gettext-tools/gnulib-lib/libcroco/cr-sel-eng.h

   1 /* -*- Mode: C; indent-tabs-mode:nil; c-basic-offset: 8-*- */
   2
   3 /*
   4  * This file is part of The Croco Library
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of version 3 of the GNU General Public
   8  * License as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  18  * USA
  19  *
  20  * Author: Dodji Seketeli
  21  * See COPYRIGHTS file for copyrights information.
  22  */
  23
  24 #ifndef __CR_SEL_ENG_H__
  25 #define __CR_SEL_ENG_H__
  26
  27 #include "cr-utils.h"
  28 #include "cr-stylesheet.h"
  29 #include "cr-cascade.h"
  30 #include "cr-style.h"
  31 #include "cr-prop-list.h"
  32
  33 #ifdef CROCO_HAVE_LIBXML2
  34  #include <libxml/tree.h>
  35 #endif
  36
  37
  38
  39 /**
  40  *@file:
  41  *The declaration of the  #CRSelEng class.
  42  *The #CRSelEng is actually the "Selection Engine"
  43  *class.
  44  */
  45
  46 G_BEGIN_DECLS
  47
  48 typedef struct _CRSelEng CRSelEng ;
  49 typedef struct _CRSelEngPriv CRSelEngPriv ;
  50
  51 /**
  52  *The Selection engine class.
  53  *The main service provided by this class, is
  54  *the ability to interpret a libcroco implementation
  55  *of css2 selectors, and given an xml node, say if
  56  *the selector matches the node or not.
  57  */
  58 struct _CRSelEng
  59 {
  60         CRSelEngPriv *priv ;
  61 } ;
  62
  63
  64 typedef gboolean (*CRPseudoClassSelectorHandler) (CRSelEng* a_this,
  65                                                   CRAdditionalSel *a_add_sel,
  66                                                   xmlNode *a_node) ;
  67 CRSelEng * cr_sel_eng_new (void) ;
  68
  69 enum CRStatus cr_sel_eng_register_pseudo_class_sel_handler (CRSelEng *a_this,
  70                                                             guchar *a_pseudo_class_sel_name,
  71                                                             enum CRPseudoType a_pseudo_class_type,
  72                                                             CRPseudoClassSelectorHandler a_handler) ;
  73
  74 enum CRStatus cr_sel_eng_unregister_pseudo_class_sel_handler (CRSelEng *a_this,
  75                                                               guchar *a_pseudo_class_sel_name,
  76                                                               enum CRPseudoType a_pseudo_class_type) ;
  77
  78 enum CRStatus cr_sel_eng_unregister_all_pseudo_class_sel_handlers (CRSelEng *a_this) ;
  79
  80 enum CRStatus cr_sel_eng_get_pseudo_class_selector_handler (CRSelEng *a_this,
  81                                                             guchar *a_pseudo_class_sel_name,
  82                                                             enum CRPseudoType a_pseudo_class_type,
  83                                                             CRPseudoClassSelectorHandler *a_handler) ;
  84
  85 enum CRStatus cr_sel_eng_matches_node (CRSelEng *a_this,
  86                                        CRSimpleSel *a_sel,
  87                                        xmlNode *a_node,
  88                                        gboolean *a_result) ;
  89
  90 enum CRStatus cr_sel_eng_get_matched_rulesets (CRSelEng *a_this,
  91                                                CRStyleSheet *a_sheet,
  92                                                xmlNode *a_node,
  93                                                CRStatement ***a_rulesets,
  94                                                gulong *a_len) ;
  95
  96 enum CRStatus
  97 cr_sel_eng_get_matched_properties_from_cascade  (CRSelEng *a_this,
  98                                                  CRCascade *a_cascade,
  99                                                  xmlNode *a_node,
 100                                                  CRPropList **a_props) ;
 101
 102 enum CRStatus cr_sel_eng_get_matched_style (CRSelEng *a_this,
 103                                             CRCascade *a_cascade,
 104                                             xmlNode *a_node,
 105                                             CRStyle *a_parent_style,
 106                                             CRStyle **a_style,
 107                                             gboolean a_set_props_to_initial_values) ;
 108
 109 void cr_sel_eng_destroy (CRSelEng *a_this) ;
 110
 111 G_END_DECLS
 112
 113
 114 #endif/*__CR_SEL_ENG_H__*/