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Added support for parsing required toolkit versions (so that ui

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* gtk/gtkbuilderprivate.h, gtk/gtkbuilder.h, gtk/gtkbuilderparser.c:
	Added support for parsing required toolkit versions (so that ui descriptions
	can target specific versions of the backend widget libraries) bug 527612.

	* gtk/docs/reference/gtk/tmpl/gtkbuilder.sgml: Added documentation
	for the added xml tags to the ui description.


svn path=/trunk/; revision=20152
This commit is contained in:
Tristan Van Berkom
2008-05-25 15:12:39 +00:00
parent 18e3aedbf0
commit 7b0ef2095a
5 changed files with 120 additions and 4 deletions
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96
gtk/gtkbuilderparser.c
View File

@ -28,6 +28,7 @@
#include "gtkbuilder.h"
#include "gtkbuildable.h"
#include "gtkdebug.h"
#include "gtkversion.h"
#include "gtktypeutils.h"
#include "gtkintl.h"
#include "gtkalias.h"
@ -224,6 +225,63 @@ _get_type_by_symbol (const gchar* symbol)
return g_strdup (g_type_name (type));
}
static void
parse_requires (ParserData *data,
const gchar *element_name,
const gchar **names,
const gchar **values,
GError **error)
{
RequiresInfo *req_info;
const gchar *library = NULL;
const gchar *version = NULL;
gchar **split;
gint i, version_major = 0, version_minor = 0;
gint line_number, char_number;
g_markup_parse_context_get_position (data->ctx,
&line_number,
&char_number);
for (i = 0; names[i] != NULL; i++)
{
if (strcmp (names[i], "lib") == 0)
library = values[i];
else if (strcmp (names[i], "version") == 0)
version = values[i];
else
error_invalid_attribute (data, element_name, names[i], error);
}
if (!library || !version)
{
error_missing_attribute (data, element_name,
version ? "lib" : "version", error);
return;
}
if (!(split = g_strsplit (version, ".", 2)) || !split[0] || !split[1])
{
g_set_error (error,
GTK_BUILDER_ERROR,
GTK_BUILDER_ERROR_INVALID_VALUE,
"%s:%d:%d <%s> attribute has malformed value \"%s\"",
data->filename,
line_number, char_number, "version", version);
return;
}
version_major = g_ascii_strtoll (split[0], NULL, 10);
version_minor = g_ascii_strtoll (split[1], NULL, 10);
g_strfreev (split);
req_info = g_slice_new0 (RequiresInfo);
req_info->library = g_strdup (library);
req_info->major = version_major;
req_info->minor = version_minor;
state_push (data, req_info);
req_info->tag.name = element_name;
}
static void
parse_object (ParserData *data,
const gchar *element_name,
@ -521,6 +579,14 @@ _free_signal_info (SignalInfo *info,
g_slice_free (SignalInfo, info);
}
void
_free_requires_info (RequiresInfo *info,
gpointer user_data)
{
g_free (info->library);
g_slice_free (RequiresInfo, info);
}
static void
parse_interface (ParserData *data,
const gchar *element_name,
@ -729,8 +795,10 @@ start_element (GMarkupParseContext *context,
if (!subparser_start (context, element_name, names, values,
data, error))
return;
if (strcmp (element_name, "object") == 0)
if (strcmp (element_name, "requires") == 0)
parse_requires (data, element_name, names, values, error);
else if (strcmp (element_name, "object") == 0)
parse_object (data, element_name, names, values, error);
else if (strcmp (element_name, "child") == 0)
parse_child (data, element_name, names, values, error);
@ -821,7 +889,27 @@ end_element (GMarkupParseContext *context,
return;
}
if (strcmp (element_name, "object") == 0)
if (strcmp (element_name, "requires") == 0)
{
RequiresInfo *req_info = state_pop_info (data, RequiresInfo);
/* TODO: Allow third party widget developers to check thier
* required versions, possibly throw a signal allowing them
* to check thier library versions here.
*/
if (!strcmp (req_info->library, "gtk+"))
{
if (!GTK_CHECK_VERSION (req_info->major, req_info->minor, 0))
g_set_error (error,
GTK_BUILDER_ERROR,
GTK_BUILDER_ERROR_VERSION_MISMATCH,
"%s: required %s version %d.%d, current version is %d.%d",
data->filename, req_info->library,
req_info->major, req_info->minor,
GTK_MAJOR_VERSION, GTK_MINOR_VERSION);
}
}
else if (strcmp (element_name, "object") == 0)
{
ObjectInfo *object_info = state_pop_info (data, ObjectInfo);
ChildInfo* child_info = state_peek_info (data, ChildInfo);
@ -948,6 +1036,8 @@ free_info (CommonInfo *info)
free_property_info ((PropertyInfo *)info);
else if (strcmp (info->tag.name, "signal") == 0)
_free_signal_info ((SignalInfo *)info, NULL);
else if (strcmp (info->tag.name, "requires") == 0)
_free_requires_info ((RequiresInfo *)info, NULL);
else
g_assert_not_reached ();
}