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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:54:43 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:54:43 +0000
commite4283f6d48b98e764b988b43bbc86b9d52e6ec94 (patch)
treec8f7f7a6c2f5faa2942d27cefc6fd46cca492656 /src/st/croco/cr-statement.h
parentInitial commit. (diff)
downloadgnome-shell-e4283f6d48b98e764b988b43bbc86b9d52e6ec94.tar.xz
gnome-shell-e4283f6d48b98e764b988b43bbc86b9d52e6ec94.zip
Adding upstream version 43.9.upstream/43.9upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/st/croco/cr-statement.h')
-rw-r--r--src/st/croco/cr-statement.h440
1 files changed, 440 insertions, 0 deletions
diff --git a/src/st/croco/cr-statement.h b/src/st/croco/cr-statement.h
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+/* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
+
+/*
+ * This file is part of The Croco Library
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2.1 of the GNU Lesser General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ *
+ * Author: Dodji Seketeli
+ * See COPYRIGHTS file for copyright information.
+ */
+
+#include <stdio.h>
+#include "cr-utils.h"
+#include "cr-term.h"
+#include "cr-selector.h"
+#include "cr-declaration.h"
+
+#ifndef __CR_STATEMENT_H__
+#define __CR_STATEMENT_H__
+
+G_BEGIN_DECLS
+
+/**
+ *@file
+ *Declaration of the #CRStatement class.
+ */
+
+/*
+ *forward declaration of CRStyleSheet which is defined in
+ *cr-stylesheet.h
+ */
+
+struct _CRStatement ;
+
+/*
+ *typedef struct _CRStatement CRStatement ;
+ *this is forward declared in
+ *cr-declaration.h already.
+ */
+
+struct _CRAtMediaRule ;
+typedef struct _CRAtMediaRule CRAtMediaRule ;
+
+typedef struct _CRRuleSet CRRuleSet ;
+
+/**
+ *The abstraction of a css ruleset.
+ *A ruleset is made of a list of selectors,
+ *followed by a list of declarations.
+ */
+struct _CRRuleSet
+{
+ /**A list of instances of #CRSimpeSel*/
+ CRSelector *sel_list ;
+
+ /**A list of instances of #CRDeclaration*/
+ CRDeclaration *decl_list ;
+
+ /**
+ *The parent media rule, or NULL if
+ *no parent media rule exists.
+ */
+ CRStatement *parent_media_rule ;
+} ;
+
+/*
+ *a forward declaration of CRStylesheet.
+ *CRStylesheet is actually declared in
+ *cr-stylesheet.h
+ */
+struct _CRStyleSheet ;
+typedef struct _CRStyleSheet CRStyleSheet;
+
+
+/**The \@import rule abstraction.*/
+typedef struct _CRAtImportRule CRAtImportRule ;
+struct _CRAtImportRule
+{
+ /**the url of the import rule*/
+ CRString *url ;
+
+ GList *media_list ;
+
+ /**
+ *the stylesheet fetched from the url, if any.
+ *this is not "owned" by #CRAtImportRule which means
+ *it is not destroyed by the destructor of #CRAtImportRule.
+ */
+ CRStyleSheet * sheet;
+};
+
+
+/**abstraction of an \@media rule*/
+struct _CRAtMediaRule
+{
+ GList *media_list ;
+ CRStatement *rulesets ;
+} ;
+
+
+typedef struct _CRAtPageRule CRAtPageRule ;
+/**The \@page rule abstraction*/
+struct _CRAtPageRule
+{
+ /**a list of instances of #CRDeclaration*/
+ CRDeclaration *decl_list ;
+
+ /**page selector. Is a pseudo selector*/
+ CRString *name ;
+ CRString *pseudo ;
+} ;
+
+/**The \@charset rule abstraction*/
+typedef struct _CRAtCharsetRule CRAtCharsetRule ;
+struct _CRAtCharsetRule
+{
+ CRString * charset ;
+};
+
+/**The abstraction of the \@font-face rule.*/
+typedef struct _CRAtFontFaceRule CRAtFontFaceRule ;
+struct _CRAtFontFaceRule
+{
+ /*a list of instanaces of #CRDeclaration*/
+ CRDeclaration *decl_list ;
+} ;
+
+
+/**
+ *The possible types of css2 statements.
+ */
+enum CRStatementType
+{
+ /**
+ *A generic css at-rule
+ *each unknown at-rule will
+ *be of this type.
+ */
+
+ /**A css at-rule*/
+ AT_RULE_STMT = 0,
+
+ /*A css ruleset*/
+ RULESET_STMT,
+
+ /**A css2 import rule*/
+ AT_IMPORT_RULE_STMT,
+
+ /**A css2 media rule*/
+ AT_MEDIA_RULE_STMT,
+
+ /**A css2 page rule*/
+ AT_PAGE_RULE_STMT,
+
+ /**A css2 charset rule*/
+ AT_CHARSET_RULE_STMT,
+
+ /**A css2 font face rule*/
+ AT_FONT_FACE_RULE_STMT
+} ;
+
+
+/**
+ *The abstraction of css statement as defined
+ *in the chapter 4 and appendix D.1 of the css2 spec.
+ *A statement is actually a double chained list of
+ *statements.A statement can be a ruleset, an \@import
+ *rule, an \@page rule etc ...
+ */
+struct _CRStatement
+{
+ /**
+ *The type of the statement.
+ */
+ enum CRStatementType type ;
+
+ union
+ {
+ CRRuleSet *ruleset ;
+ CRAtImportRule *import_rule ;
+ CRAtMediaRule *media_rule ;
+ CRAtPageRule *page_rule ;
+ CRAtCharsetRule *charset_rule ;
+ CRAtFontFaceRule *font_face_rule ;
+ } kind ;
+
+ /*
+ *the specificity of the selector
+ *that matched this statement.
+ *This is only used by the cascading
+ *order determination algorithm.
+ */
+ gulong specificity ;
+
+ /*
+ *the style sheet that contains
+ *this css statement.
+ */
+ CRStyleSheet *parent_sheet ;
+ CRStatement *next ;
+ CRStatement *prev ;
+
+ CRParsingLocation location ;
+
+ /**
+ *a custom pointer useable by
+ *applications that use libcroco.
+ *libcroco itself will never modify
+ *this pointer.
+ */
+ gpointer app_data ;
+
+ /**
+ *a custom pointer used
+ *by the upper layers of libcroco.
+ *application should never use this
+ *pointer.
+ */
+ gpointer croco_data ;
+
+} ;
+
+
+gboolean
+cr_statement_does_buf_parses_against_core (const guchar *a_buf,
+ enum CREncoding a_encoding) ;
+CRStatement *
+cr_statement_parse_from_buf (const guchar *a_buf,
+ enum CREncoding a_encoding) ;
+CRStatement*
+cr_statement_new_ruleset (CRStyleSheet *a_sheet,
+ CRSelector *a_sel_list,
+ CRDeclaration *a_decl_list,
+ CRStatement *a_media_rule) ;
+CRStatement *
+cr_statement_ruleset_parse_from_buf (const guchar * a_buf,
+ enum CREncoding a_enc) ;
+
+CRStatement*
+cr_statement_new_at_import_rule (CRStyleSheet *a_container_sheet,
+ CRString *a_url,
+ GList *a_media_list,
+ CRStyleSheet *a_imported_sheet) ;
+
+CRStatement *
+cr_statement_at_import_rule_parse_from_buf (const guchar * a_buf,
+ enum CREncoding a_encoding) ;
+
+CRStatement *
+cr_statement_new_at_media_rule (CRStyleSheet *a_sheet,
+ CRStatement *a_ruleset,
+ GList *a_media) ;
+CRStatement *
+cr_statement_at_media_rule_parse_from_buf (const guchar *a_buf,
+ enum CREncoding a_enc) ;
+
+CRStatement *
+cr_statement_new_at_charset_rule (CRStyleSheet *a_sheet,
+ CRString *a_charset) ;
+CRStatement *
+cr_statement_at_charset_rule_parse_from_buf (const guchar *a_buf,
+ enum CREncoding a_encoding);
+
+
+CRStatement *
+cr_statement_new_at_font_face_rule (CRStyleSheet *a_sheet,
+ CRDeclaration *a_font_decls) ;
+CRStatement *
+cr_statement_font_face_rule_parse_from_buf (const guchar *a_buf,
+ enum CREncoding a_encoding) ;
+
+CRStatement *
+cr_statement_new_at_page_rule (CRStyleSheet *a_sheet,
+ CRDeclaration *a_decl_list,
+ CRString *a_name,
+ CRString *a_pseudo) ;
+CRStatement *
+cr_statement_at_page_rule_parse_from_buf (const guchar *a_buf,
+ enum CREncoding a_encoding) ;
+
+enum CRStatus
+cr_statement_set_parent_sheet (CRStatement *a_this,
+ CRStyleSheet *a_sheet) ;
+
+enum CRStatus
+cr_statement_get_parent_sheet (CRStatement *a_this,
+ CRStyleSheet **a_sheet) ;
+
+CRStatement *
+cr_statement_append (CRStatement *a_this,
+ CRStatement *a_new) ;
+
+CRStatement*
+cr_statement_prepend (CRStatement *a_this,
+ CRStatement *a_new) ;
+
+CRStatement *
+cr_statement_unlink (CRStatement *a_stmt) ;
+
+enum CRStatus
+cr_statement_ruleset_set_sel_list (CRStatement *a_this,
+ CRSelector *a_sel_list) ;
+
+enum CRStatus
+cr_statement_ruleset_get_sel_list (CRStatement const *a_this,
+ CRSelector **a_list) ;
+
+enum CRStatus
+cr_statement_ruleset_set_decl_list (CRStatement *a_this,
+ CRDeclaration *a_list) ;
+
+enum CRStatus
+cr_statement_ruleset_get_declarations (CRStatement *a_this,
+ CRDeclaration **a_decl_list) ;
+
+enum CRStatus
+cr_statement_ruleset_append_decl2 (CRStatement *a_this,
+ CRString *a_prop, CRTerm *a_value) ;
+
+enum CRStatus
+cr_statement_ruleset_append_decl (CRStatement *a_this,
+ CRDeclaration *a_decl) ;
+
+enum CRStatus
+cr_statement_at_import_rule_set_imported_sheet (CRStatement *a_this,
+ CRStyleSheet *a_sheet) ;
+
+enum CRStatus
+cr_statement_at_import_rule_get_imported_sheet (CRStatement *a_this,
+ CRStyleSheet **a_sheet) ;
+
+enum CRStatus
+cr_statement_at_import_rule_set_url (CRStatement *a_this,
+ CRString *a_url) ;
+
+enum CRStatus
+cr_statement_at_import_rule_get_url (CRStatement const *a_this,
+ CRString **a_url) ;
+
+gint
+cr_statement_at_media_nr_rules (CRStatement const *a_this) ;
+
+CRStatement *
+cr_statement_at_media_get_from_list (CRStatement *a_this, int itemnr) ;
+
+enum CRStatus
+cr_statement_at_page_rule_set_sel (CRStatement *a_this,
+ CRSelector *a_sel) ;
+
+enum CRStatus
+cr_statement_at_page_rule_get_sel (CRStatement const *a_this,
+ CRSelector **a_sel) ;
+
+enum CRStatus
+cr_statement_at_page_rule_set_declarations (CRStatement *a_this,
+ CRDeclaration *a_decl_list) ;
+
+enum CRStatus
+cr_statement_at_page_rule_get_declarations (CRStatement *a_this,
+ CRDeclaration **a_decl_list) ;
+
+enum CRStatus
+cr_statement_at_charset_rule_set_charset (CRStatement *a_this,
+ CRString *a_charset) ;
+
+enum CRStatus
+cr_statement_at_charset_rule_get_charset (CRStatement const *a_this,
+ CRString **a_charset) ;
+
+enum CRStatus
+cr_statement_at_font_face_rule_set_decls (CRStatement *a_this,
+ CRDeclaration *a_decls) ;
+
+enum CRStatus
+cr_statement_at_font_face_rule_get_decls (CRStatement *a_this,
+ CRDeclaration **a_decls) ;
+
+enum CRStatus
+cr_statement_at_font_face_rule_add_decl (CRStatement *a_this,
+ CRString *a_prop,
+ CRTerm *a_value) ;
+
+gchar *
+cr_statement_to_string (CRStatement const * a_this, gulong a_indent) ;
+
+gchar*
+cr_statement_list_to_string (CRStatement const *a_this, gulong a_indent) ;
+
+void
+cr_statement_dump (CRStatement const *a_this, FILE *a_fp, gulong a_indent) ;
+
+void
+cr_statement_dump_ruleset (CRStatement const * a_this, FILE * a_fp,
+ glong a_indent) ;
+
+void
+cr_statement_dump_font_face_rule (CRStatement const * a_this,
+ FILE * a_fp,
+ glong a_indent) ;
+
+void
+cr_statement_dump_page (CRStatement const * a_this, FILE * a_fp,
+ gulong a_indent) ;
+
+
+void
+cr_statement_dump_media_rule (CRStatement const * a_this,
+ FILE * a_fp,
+ gulong a_indent) ;
+
+void
+cr_statement_dump_import_rule (CRStatement const * a_this, FILE * a_fp,
+ gulong a_indent) ;
+void
+cr_statement_dump_charset (CRStatement const * a_this, FILE * a_fp,
+ gulong a_indent) ;
+gint
+cr_statement_nr_rules (CRStatement const *a_this) ;
+
+CRStatement *
+cr_statement_get_from_list (CRStatement *a_this, int itemnr) ;
+
+void
+cr_statement_destroy (CRStatement *a_this) ;
+
+G_END_DECLS
+
+#endif /*__CR_STATEMENT_H__*/