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author | Tristan Van Berkom <tristan.van.berkom@gmail.com> | 2011-01-27 16:30:15 +0900 |
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committer | Tristan Van Berkom <tristan.van.berkom@gmail.com> | 2011-01-27 22:53:24 +0900 |
commit | 031a09225461eb53f44d27d993c46dc9a11e2cc6 (patch) | |
tree | c310a6a853807c43e83fd4ccb4d003b4350f1119 /gtk/gtkfilefilter.c | |
parent | 9bd53091c0750bc10d2e0d8c7bb53eeb8569a71b (diff) | |
download | gtk+-031a09225461eb53f44d27d993c46dc9a11e2cc6.tar.gz |
Added <mime-types> and <patterns> parsing support to GtkFileFilter.
Diffstat (limited to 'gtk/gtkfilefilter.c')
-rw-r--r-- | gtk/gtkfilefilter.c | 194 |
1 files changed, 193 insertions, 1 deletions
diff --git a/gtk/gtkfilefilter.c b/gtk/gtkfilefilter.c index cdfb6cbedf..21b44c053a 100644 --- a/gtk/gtkfilefilter.c +++ b/gtk/gtkfilefilter.c @@ -39,6 +39,33 @@ * see gtk_file_chooser_add_filter(), but it is also possible * to manually use a filter on a file with gtk_file_filter_filter(). * + * <refsect2 id="GtkFileFilter-BUILDER-UI"> + * <title>GtkFileFilter as GtkBuildable</title> + * <para> + * The GtkFileFilter implementation of the GtkBuildable interface + * supports adding rules using the <mime-types>, <patterns> and + * <applications> elements and listing the rules within. Specifying + * a <mime-type> or <pattern> is the same + * as calling gtk_recent_filter_add_mime_type() or gtk_recent_filter_add_pattern() + * + * <example> + * <title>A UI definition fragment specifying GtkFileFilter rules</title> + * <programlisting><![CDATA[ + * <object class="GtkFileFilter"> + * <mime-types> + * <mime-type>text/plain</mime-type> + * <mime-type>image/*</mime-type> + * </mime-types> + * <patterns> + * <pattern>*.txt</pattern> + * <pattern>*.png</pattern> + * </patterns> + * </object> + * ]]></programlisting> + * </example> + * </para> + * </refsect2> + * * @see_also: #GtkFileChooser */ @@ -48,6 +75,7 @@ #include <gdk-pixbuf/gdk-pixbuf.h> #include "gtkfilefilter.h" +#include "gtkbuildable.h" #include "gtkintl.h" #include "gtkprivate.h" @@ -100,7 +128,22 @@ struct _FilterRule static void gtk_file_filter_finalize (GObject *object); -G_DEFINE_TYPE (GtkFileFilter, gtk_file_filter, G_TYPE_INITIALLY_UNOWNED) +static void gtk_file_filter_buildable_init (GtkBuildableIface *iface); +static gboolean gtk_file_filter_buildable_custom_tag_start (GtkBuildable *buildable, + GtkBuilder *builder, + GObject *child, + const gchar *tagname, + GMarkupParser *parser, + gpointer *data); +static void gtk_file_filter_buildable_custom_tag_end (GtkBuildable *buildable, + GtkBuilder *builder, + GObject *child, + const gchar *tagname, + gpointer *data); + +G_DEFINE_TYPE_WITH_CODE (GtkFileFilter, gtk_file_filter, G_TYPE_INITIALLY_UNOWNED, + G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE, + gtk_file_filter_buildable_init)) static void gtk_file_filter_init (GtkFileFilter *object) @@ -153,6 +196,155 @@ gtk_file_filter_finalize (GObject *object) G_OBJECT_CLASS (gtk_file_filter_parent_class)->finalize (object); } +/* + * GtkBuildable implementation + */ +static void +gtk_file_filter_buildable_init (GtkBuildableIface *iface) +{ + iface->custom_tag_start = gtk_file_filter_buildable_custom_tag_start; + iface->custom_tag_end = gtk_file_filter_buildable_custom_tag_end; +} + +typedef enum { + PARSE_MIME_TYPES, + PARSE_PATTERNS +} ParserType; + +typedef struct { + GtkFileFilter *filter; + ParserType type; + GString *string; + gboolean parsing; +} SubParserData; + +static void +parser_start_element (GMarkupParseContext *context, + const gchar *element_name, + const gchar **names, + const gchar **values, + gpointer user_data, + GError **error) +{ + SubParserData *parser_data = (SubParserData*)user_data; + + if (strcmp (element_name, "mime-types") == 0) + return; + else if (strcmp (element_name, "mime-type") == 0) + { + parser_data->parsing = TRUE; + return; + } + else if (strcmp (element_name, "patterns") == 0) + return; + else if (strcmp (element_name, "pattern") == 0) + { + parser_data->parsing = TRUE; + return; + } + else + g_warning ("Unsupported tag for GtkFileFilter: %s\n", element_name); +} + +static void +parser_text_element (GMarkupParseContext *context, + const gchar *text, + gsize text_len, + gpointer user_data, + GError **error) +{ + SubParserData *parser_data = (SubParserData*)user_data; + + if (parser_data->parsing) + g_string_append_len (parser_data->string, text, text_len); +} + +static void +parser_end_element (GMarkupParseContext *context, + const gchar *element_name, + gpointer user_data, + GError **error) +{ + SubParserData *parser_data = (SubParserData*)user_data; + + if (parser_data->string) + { + switch (parser_data->type) + { + case PARSE_MIME_TYPES: + gtk_file_filter_add_mime_type (parser_data->filter, parser_data->string->str); + break; + case PARSE_PATTERNS: + gtk_file_filter_add_pattern (parser_data->filter, parser_data->string->str); + break; + default: + break; + } + } + + g_string_set_size (parser_data->string, 0); + parser_data->parsing = FALSE; +} + +static const GMarkupParser sub_parser = + { + parser_start_element, + parser_end_element, + parser_text_element, + }; + +static gboolean +gtk_file_filter_buildable_custom_tag_start (GtkBuildable *buildable, + GtkBuilder *builder, + GObject *child, + const gchar *tagname, + GMarkupParser *parser, + gpointer *data) +{ + SubParserData *parser_data = NULL; + + if (strcmp (tagname, "mime-types") == 0) + { + parser_data = g_slice_new0 (SubParserData); + parser_data->string = g_string_new (""); + parser_data->type = PARSE_MIME_TYPES; + parser_data->filter = GTK_FILE_FILTER (buildable); + + *parser = sub_parser; + *data = parser_data; + } + else if (strcmp (tagname, "patterns") == 0) + { + parser_data = g_slice_new0 (SubParserData); + parser_data->string = g_string_new (""); + parser_data->type = PARSE_PATTERNS; + parser_data->filter = GTK_FILE_FILTER (buildable); + + *parser = sub_parser; + *data = parser_data; + } + + return parser_data != NULL; +} + +static void +gtk_file_filter_buildable_custom_tag_end (GtkBuildable *buildable, + GtkBuilder *builder, + GObject *child, + const gchar *tagname, + gpointer *data) +{ + if (strcmp (tagname, "mime-types") == 0 || + strcmp (tagname, "patterns") == 0) + { + SubParserData *parser_data = (SubParserData*)data; + + g_string_free (parser_data->string, TRUE); + g_slice_free (SubParserData, parser_data); + } +} + + /** * gtk_file_filter_new: * |