forked from AuroraMiddleware/gtk
349 lines
9.0 KiB
C
349 lines
9.0 KiB
C
/* GTK - The GIMP Toolkit
|
|
* Copyright (C) 2011 Red Hat, Inc.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "gtkcsssectionprivate.h"
|
|
|
|
#include "gtkcssparserprivate.h"
|
|
#include "gtkprivate.h"
|
|
|
|
/**
|
|
* GtkCssSection:
|
|
*
|
|
* Defines a part of a CSS document. Because sections are nested into
|
|
* one another, you can use gtk_css_section_get_parent() to get the
|
|
* containing region.
|
|
*
|
|
* Since: 3.2
|
|
*/
|
|
|
|
struct _GtkCssSection
|
|
{
|
|
volatile gint ref_count;
|
|
GtkCssSectionType section_type;
|
|
GtkCssSection *parent;
|
|
GFile *file;
|
|
guint start_line;
|
|
guint start_position;
|
|
GtkCssParser *parser; /* parser if section isn't finished parsing yet or %NULL */
|
|
guint end_line; /* end line if parser is %NULL */
|
|
guint end_position; /* end position if parser is %NULL */
|
|
};
|
|
|
|
G_DEFINE_BOXED_TYPE (GtkCssSection, gtk_css_section, gtk_css_section_ref, gtk_css_section_unref)
|
|
|
|
GtkCssSection *
|
|
_gtk_css_section_new (GtkCssSection *parent,
|
|
GtkCssSectionType type,
|
|
GtkCssParser *parser)
|
|
{
|
|
GtkCssSection *section;
|
|
|
|
gtk_internal_return_val_if_fail (parser != NULL, NULL);
|
|
|
|
section = g_slice_new0 (GtkCssSection);
|
|
|
|
section->ref_count = 1;
|
|
section->section_type = type;
|
|
if (parent)
|
|
section->parent = gtk_css_section_ref (parent);
|
|
section->file = _gtk_css_parser_get_file (parser);
|
|
if (section->file)
|
|
g_object_ref (section->file);
|
|
section->start_line = _gtk_css_parser_get_line (parser);
|
|
section->start_position = _gtk_css_parser_get_position (parser);
|
|
section->parser = parser;
|
|
|
|
return section;
|
|
}
|
|
|
|
GtkCssSection *
|
|
_gtk_css_section_new_for_file (GtkCssSectionType type,
|
|
GFile *file)
|
|
{
|
|
GtkCssSection *section;
|
|
|
|
gtk_internal_return_val_if_fail (G_IS_FILE (file), NULL);
|
|
|
|
section = g_slice_new0 (GtkCssSection);
|
|
|
|
section->ref_count = 1;
|
|
section->section_type = type;
|
|
section->file = g_object_ref (file);
|
|
|
|
return section;
|
|
}
|
|
|
|
void
|
|
_gtk_css_section_end (GtkCssSection *section)
|
|
{
|
|
gtk_internal_return_if_fail (section != NULL);
|
|
gtk_internal_return_if_fail (section->parser != NULL);
|
|
|
|
section->end_line = _gtk_css_parser_get_line (section->parser);
|
|
section->end_position = _gtk_css_parser_get_position (section->parser);
|
|
section->parser = NULL;
|
|
}
|
|
|
|
/**
|
|
* gtk_css_section_ref:
|
|
* @section: a #GtkCssSection
|
|
*
|
|
* Increments the reference count on @section.
|
|
*
|
|
* Returns: @section itself.
|
|
*
|
|
* Since: 3.2
|
|
**/
|
|
GtkCssSection *
|
|
gtk_css_section_ref (GtkCssSection *section)
|
|
{
|
|
gtk_internal_return_val_if_fail (section != NULL, NULL);
|
|
|
|
g_atomic_int_add (§ion->ref_count, 1);
|
|
|
|
return section;
|
|
}
|
|
|
|
/**
|
|
* gtk_css_section_unref:
|
|
* @section: a #GtkCssSection
|
|
*
|
|
* Decrements the reference count on @section, freeing the
|
|
* structure if the reference count reaches 0.
|
|
*
|
|
* Since: 3.2
|
|
**/
|
|
void
|
|
gtk_css_section_unref (GtkCssSection *section)
|
|
{
|
|
gtk_internal_return_if_fail (section != NULL);
|
|
|
|
if (!g_atomic_int_dec_and_test (§ion->ref_count))
|
|
return;
|
|
|
|
if (section->parent)
|
|
gtk_css_section_unref (section->parent);
|
|
if (section->file)
|
|
g_object_unref (section->file);
|
|
|
|
g_slice_free (GtkCssSection, section);
|
|
}
|
|
|
|
/**
|
|
* gtk_css_section_get_section_type:
|
|
* @section: the section
|
|
*
|
|
* Gets the type of information that @section describes.
|
|
*
|
|
* Returns: the type of @section
|
|
*
|
|
* Since: 3.2
|
|
**/
|
|
GtkCssSectionType
|
|
gtk_css_section_get_section_type (const GtkCssSection *section)
|
|
{
|
|
gtk_internal_return_val_if_fail (section != NULL, GTK_CSS_SECTION_DOCUMENT);
|
|
|
|
return section->section_type;
|
|
}
|
|
|
|
/**
|
|
* gtk_css_section_get_parent:
|
|
* @section: the section
|
|
*
|
|
* Gets the parent section for the given @section. The parent section is
|
|
* the section that contains this @section. A special case are sections of
|
|
* type #GTK_CSS_SECTION_DOCUMENT. Their parent will either be %NULL
|
|
* if they are the original CSS document that was loaded by
|
|
* gtk_css_provider_load_from_file() or a section of type
|
|
* #GTK_CSS_SECTION_IMPORT if it was loaded with an import rule from
|
|
* a different file.
|
|
*
|
|
* Returns: (nullable) (transfer none): the parent section or %NULL if none
|
|
*
|
|
* Since: 3.2
|
|
**/
|
|
GtkCssSection *
|
|
gtk_css_section_get_parent (const GtkCssSection *section)
|
|
{
|
|
gtk_internal_return_val_if_fail (section != NULL, NULL);
|
|
|
|
return section->parent;
|
|
}
|
|
|
|
/**
|
|
* gtk_css_section_get_file:
|
|
* @section: the section
|
|
*
|
|
* Gets the file that @section was parsed from. If no such file exists,
|
|
* for example because the CSS was loaded via
|
|
* @gtk_css_provider_load_from_data(), then %NULL is returned.
|
|
*
|
|
* Returns: (transfer none): the #GFile that @section was parsed from
|
|
* or %NULL if @section was parsed from other data
|
|
*
|
|
* Since: 3.2
|
|
**/
|
|
GFile *
|
|
gtk_css_section_get_file (const GtkCssSection *section)
|
|
{
|
|
gtk_internal_return_val_if_fail (section != NULL, NULL);
|
|
|
|
return section->file;
|
|
}
|
|
|
|
/**
|
|
* gtk_css_section_get_start_line:
|
|
* @section: the section
|
|
*
|
|
* Returns the line in the CSS document where this section starts.
|
|
* The line number is 0-indexed, so the first line of the document
|
|
* will return 0.
|
|
*
|
|
* Returns: the line number
|
|
*
|
|
* Since: 3.2
|
|
**/
|
|
guint
|
|
gtk_css_section_get_start_line (const GtkCssSection *section)
|
|
{
|
|
gtk_internal_return_val_if_fail (section != NULL, 0);
|
|
|
|
return section->start_line;
|
|
}
|
|
|
|
/**
|
|
* gtk_css_section_get_start_position:
|
|
* @section: the section
|
|
*
|
|
* Returns the offset in bytes from the start of the current line
|
|
* returned via gtk_css_section_get_start_line().
|
|
*
|
|
* Returns: the offset in bytes from the start of the line.
|
|
*
|
|
* Since: 3.2
|
|
**/
|
|
guint
|
|
gtk_css_section_get_start_position (const GtkCssSection *section)
|
|
{
|
|
gtk_internal_return_val_if_fail (section != NULL, 0);
|
|
|
|
return section->start_position;
|
|
}
|
|
|
|
/**
|
|
* gtk_css_section_get_end_line:
|
|
* @section: the section
|
|
*
|
|
* Returns the line in the CSS document where this section end.
|
|
* The line number is 0-indexed, so the first line of the document
|
|
* will return 0.
|
|
* This value may change in future invocations of this function if
|
|
* @section is not yet parsed completely. This will for example
|
|
* happen in the GtkCssProvider::parsing-error signal.
|
|
* The end position and line may be identical to the start
|
|
* position and line for sections which failed to parse anything
|
|
* successfully.
|
|
*
|
|
* Returns: the line number
|
|
*
|
|
* Since: 3.2
|
|
**/
|
|
guint
|
|
gtk_css_section_get_end_line (const GtkCssSection *section)
|
|
{
|
|
gtk_internal_return_val_if_fail (section != NULL, 0);
|
|
|
|
if (section->parser)
|
|
return _gtk_css_parser_get_line (section->parser);
|
|
else
|
|
return section->end_line;
|
|
}
|
|
|
|
/**
|
|
* gtk_css_section_get_end_position:
|
|
* @section: the section
|
|
*
|
|
* Returns the offset in bytes from the start of the current line
|
|
* returned via gtk_css_section_get_end_line().
|
|
* This value may change in future invocations of this function if
|
|
* @section is not yet parsed completely. This will for example
|
|
* happen in the GtkCssProvider::parsing-error signal.
|
|
* The end position and line may be identical to the start
|
|
* position and line for sections which failed to parse anything
|
|
* successfully.
|
|
*
|
|
* Returns: the offset in bytes from the start of the line.
|
|
*
|
|
* Since: 3.2
|
|
**/
|
|
guint
|
|
gtk_css_section_get_end_position (const GtkCssSection *section)
|
|
{
|
|
gtk_internal_return_val_if_fail (section != NULL, 0);
|
|
|
|
if (section->parser)
|
|
return _gtk_css_parser_get_position (section->parser);
|
|
else
|
|
return section->end_position;
|
|
}
|
|
|
|
void
|
|
_gtk_css_section_print (const GtkCssSection *section,
|
|
GString *string)
|
|
{
|
|
if (section->file)
|
|
{
|
|
GFileInfo *info;
|
|
|
|
info = g_file_query_info (section->file, G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME, 0, NULL, NULL);
|
|
|
|
if (info)
|
|
{
|
|
g_string_append (string, g_file_info_get_display_name (info));
|
|
g_object_unref (info);
|
|
}
|
|
else
|
|
{
|
|
g_string_append (string, "<broken file>");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
g_string_append (string, "<data>");
|
|
}
|
|
|
|
g_string_append_printf (string, ":%u:%u",
|
|
gtk_css_section_get_end_line (section) + 1,
|
|
gtk_css_section_get_end_position (section));
|
|
}
|
|
|
|
char *
|
|
_gtk_css_section_to_string (const GtkCssSection *section)
|
|
{
|
|
GString *string;
|
|
|
|
gtk_internal_return_val_if_fail (section != NULL, NULL);
|
|
|
|
string = g_string_new (NULL);
|
|
_gtk_css_section_print (section, string);
|
|
|
|
return g_string_free (string, FALSE);
|
|
}
|