[gedit] FileChooser: win32: use globs instead of mime-types for the filter

[Sébastien Wilmet <swilmet src gnome org>]

commit 4ee648372a46fb01616d90005133737664d6a68c
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Tue Jun 9 01:17:13 2020 +0200

    FileChooser: win32: use globs instead of mime-types for the filter
    
    It's I think a good enough solution at first, for MS Windows. I've added
    TODO comments for later, if I'm motivated.

 gedit/gedit-file-chooser.c | 375 ++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 368 insertions(+), 7 deletions(-)
---
diff --git a/gedit/gedit-file-chooser.c b/gedit/gedit-file-chooser.c
index b06df7954..2e2078508 100644
--- a/gedit/gedit-file-chooser.c
+++ b/gedit/gedit-file-chooser.c
@@ -27,6 +27,13 @@
 #define ALL_FILES              _("All Files")
 #define ALL_TEXT_FILES         _("All Text Files")
 
+#ifdef G_OS_WIN32
+#  define MIME_TYPES_ARE_SUPPORTED FALSE
+#else
+#  define MIME_TYPES_ARE_SUPPORTED TRUE
+#endif
+
+#if MIME_TYPES_ARE_SUPPORTED
 /* Returns: (transfer none) (element-type utf8): a list containing "text/plain"
  * first and then the list of mime-types unrelated to "text/plain" that
  * GtkSourceView supports for the syntax highlighting.
@@ -86,25 +93,379 @@ get_supported_mime_types (void)
        return supported_mime_types;
 }
 
+#else
+
+static const gchar * const *
+get_supported_globs (void)
+{
+       /* List generated with Tepl's shared-mime-info-list-text-plain-globs
+        * tool.
+        *
+        * TODO: can be improved by including globs from GtkSourceLanguage's.
+        */
+       static const gchar * const supported_globs[] =
+       {
+               "*.abw",
+               "*.adb",
+               "*.ads",
+               "*.al",
+               "*.asc",
+               "*.asp",
+               "*.ass",
+               "*.atom",
+               "*.automount",
+               "*.awk",
+               "*.bib",
+               "*.build",
+               "*.c",
+               "*.c++",
+               "*.cbl",
+               "*.cc",
+               "*.ccmx",
+               "*.cl",
+               "*.cls",
+               "*.cmake",
+               "*.cob",
+               "*.coffee",
+               "*.cpp",
+               "*.cs",
+               "*.csh",
+               "*.css",
+               "*.csv",
+               "*.csvs",
+               "*.cue",
+               "*.cxx",
+               "*.d",
+               "*.dbk",
+               "*.dcl",
+               "*.desktop",
+               "*.device",
+               "*.di",
+               "*.dia",
+               "*.diff",
+               "*.docbook",
+               "*.dot",
+               "*.dsl",
+               "*.dtd",
+               "*.dtx",
+               "*.e",
+               "*.eif",
+               "*.el",
+               "*.eml",
+               "*.ent",
+               "*.eps",
+               "*.epsf",
+               "*.epsi",
+               "*.erl",
+               "*.es",
+               "*.etx",
+               "*.f",
+               "*.f90",
+               "*.f95",
+               "*.fb2",
+               "*.feature",
+               "*.fl",
+               "*.flatpakref",
+               "*.flatpakrepo",
+               "*.fo",
+               "*.fodg",
+               "*.fodp",
+               "*.fods",
+               "*.fodt",
+               "*.for",
+               "*.gcode",
+               "*.gcrd",
+               "*.geojson",
+               "*.glade",
+               "*.gml",
+               "*.gnuplot",
+               "*.go",
+               "*.gp",
+               "*.gpg",
+               "*.gplt",
+               "*.gpx",
+               "*.gradle",
+               "*.groovy",
+               "*.gs",
+               "*.gsf",
+               "*.gsh",
+               "*.gv",
+               "*.gvp",
+               "*.gvy",
+               "*.gy",
+               "*.h",
+               "*.h++",
+               "*.hh",
+               "*.hp",
+               "*.hpp",
+               "*.hs",
+               "*.htm",
+               "*.html",
+               "*.hxx",
+               "*.ica",
+               "*.ics",
+               "*.idl",
+               "*.iges",
+               "*.igs",
+               "*.ime",
+               "*.imy",
+               "*.ins",
+               "*.iptables",
+               "*.ipynb",
+               "*.it87",
+               "*.jad",
+               "*.java",
+               "*.jnlp",
+               "*.jrd",
+               "*.js",
+               "*.jsm",
+               "*.json",
+               "*.jsonld",
+               "*.json-patch",
+               "*.kdelnk",
+               "*.key",
+               "*.kino",
+               "*.kml",
+               "*.la",
+               "*.latex",
+               "*.ldif",
+               "*.lhs",
+               "*.log",
+               "*.ltx",
+               "*.lua",
+               "*.ly",
+               "*.lyx",
+               "*.m",
+               "*.m1u",
+               "*.m3u",
+               "*.m3u8",
+               "*.m4",
+               "*.m4u",
+               "*.mab",
+               "*.mak",
+               "*.man",
+               "*.manifest",
+               "*.markdown",
+               "*.mbox",
+               "*.mc2",
+               "*.md",
+               "*.me",
+               "*.meta4",
+               "*.metalink",
+               "*.mgp",
+               "*.mjs",
+               "*.mk",
+               "*.mkd",
+               "*.ml",
+               "*.mli",
+               "*.mm",
+               "*.mml",
+               "*.mo",
+               "*.moc",
+               "*.mof",
+               "*.mount",
+               "*.mrl",
+               "*.mrml",
+               "*.ms",
+               "*.mup",
+               "*.mxu",
+               "*.nb",
+               "*.nfo",
+               "*.not",
+               "*.nzb",
+               "*.ocl",
+               "*.ooc",
+               "*.opml",
+               "*.owl",
+               "*.owx",
+               "*.p",
+               "*.p7s",
+               "*.pas",
+               "*.patch",
+               "*.path",
+               "*.perl",
+               "*.pfa",
+               "*.pfb",
+               "*.pgn",
+               "*.pgp",
+               "*.php",
+               "*.php3",
+               "*.php4",
+               "*.php5",
+               "*.phps",
+               "*.pkr",
+               "*.pl",
+               "*.pm",
+               "*.po",
+               "*.pod",
+               "*.pot",
+               "*.ps",
+               "*.py",
+               "*.py3",
+               "*.py3x",
+               "*.pyx",
+               "*.qml",
+               "*.qmlproject",
+               "*.qmltypes",
+               "*.qti",
+               "*.raml",
+               "*.rb",
+               "*.rdf",
+               "*.rdfs",
+               "*.rej",
+               "*.rnc",
+               "*.rng",
+               "*.roff",
+               "*.rs",
+               "*.rss",
+               "*.rst",
+               "*.rt",
+               "*.rtf",
+               "*.rtx",
+               "*.sami",
+               "*.sass",
+               "*.scala",
+               "*.scm",
+               "*.scope",
+               "*.scss",
+               "*.sdp",
+               "*.service",
+               "*.sgf",
+               "*.sgm",
+               "*.sgml",
+               "*.sh",
+               "*.shape",
+               "*.sig",
+               "*.siv",
+               "*.skr",
+               "*.slice",
+               "*.slk",
+               "*.smi",
+               "*.smil",
+               "*.sml",
+               "*.socket",
+               "*.spec",
+               "*.sql",
+               "*.src",
+               "*.srt",
+               "*.ss",
+               "*.ssa",
+               "*.sty",
+               "*.sub",
+               "*.sv",
+               "*.svg",
+               "*.svh",
+               "*.swap",
+               "*.sylk",
+               "*.t",
+               "*.t2t",
+               "*.target",
+               "*.tcl",
+               "*.tex",
+               "*.texi",
+               "*.texinfo",
+               "*.theme",
+               "*.timer",
+               "*.tk",
+               "*.toc",
+               "*.tr",
+               "*.trig",
+               "*.ts",
+               "*.tsv",
+               "*.ttl",
+               "*.ttx",
+               "*.twig",
+               "*.txt",
+               "*.ufraw",
+               "*.ui",
+               "*.uil",
+               "*.uue",
+               "*.v",
+               "*.vala",
+               "*.vapi",
+               "*.vcard",
+               "*.vcf",
+               "*.vcs",
+               "*.vct",
+               "*.vhd",
+               "*.vhdl",
+               "*.vlc",
+               "*.vrm",
+               "*.vrml",
+               "*.vtt",
+               "*.wml",
+               "*.wmls",
+               "*.wrl",
+               "*.wsgi",
+               "*.xbel",
+               "*.xbl",
+               "*.xht",
+               "*.xhtml",
+               "*.xlf",
+               "*.xliff",
+               "*.xmi",
+               "*.xml",
+               "*.xsd",
+               "*.xsl",
+               "*.xslfo",
+               "*.xslt",
+               "*.xspf",
+               "*.xul",
+               "*.yaml",
+               "*.yml",
+               "*.zabw",
+               NULL
+       };
+
+       return supported_globs;
+}
+#endif
+
 static GtkFileFilter *
 create_all_text_files_filter (void)
 {
        GtkFileFilter *filter;
-       GSList *supported_mime_types;
-       GSList *l;
 
        filter = gtk_file_filter_new ();
        gtk_file_filter_set_name (filter, ALL_TEXT_FILES);
 
-       supported_mime_types = get_supported_mime_types ();
-       for (l = supported_mime_types; l != NULL; l = l->next)
+#if MIME_TYPES_ARE_SUPPORTED
        {
-               const gchar *mime_type = l->data;
+               GSList *supported_mime_types;
+               GSList *l;
+
+               supported_mime_types = get_supported_mime_types ();
+               for (l = supported_mime_types; l != NULL; l = l->next)
+               {
+                       const gchar *mime_type = l->data;
 
-               gtk_file_filter_add_mime_type (filter, mime_type);
+                       gtk_file_filter_add_mime_type (filter, mime_type);
+               }
+
+               /* FIXME: use globs too - Paolo (Aug. 27, 2007).
+                *
+                * Yes, use globs too - swilmet (June 2020). Get the list of
+                * globs from GtkSourceLanguage's, and add them to the filter
+                * (only those that are not covered by a previously added
+                * mime-type). Note that the list of extra globs here must be
+                * computed differently than the list of extra globs for
+                * get_supported_globs() (see the TODO comment there).
+                */
        }
+#else
+       {
+               const gchar * const *supported_globs;
+               gint i;
 
-       /* FIXME: use globs too - Paolo (Aug. 27, 2007) */
+               supported_globs = get_supported_globs ();
+               for (i = 0; supported_globs != NULL && supported_globs[i] != NULL; i++)
+               {
+                       const gchar *glob = supported_globs[i];
+
+                       gtk_file_filter_add_pattern (filter, glob);
+               }
+       }
+#endif
 
        return filter;
 }