[gthumb] open location dialog: allow to use tilde as a home folder shortcut

[Paolo Bacchilega <paobac src gnome org>]

commit 096180605b6bd1be5347baeb823464a73d0cb4cc
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sun Mar 22 08:28:25 2020 +0100

    open location dialog: allow to use tilde as a home folder shortcut

 gthumb/dlg-location.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 46 insertions(+), 4 deletions(-)
---
diff --git a/gthumb/dlg-location.c b/gthumb/dlg-location.c
index d2cc87d6..3005e230 100644
--- a/gthumb/dlg-location.c
+++ b/gthumb/dlg-location.c
@@ -49,6 +49,7 @@ typedef struct {
        GthFileSource *source;
        DialogData    *data;
        gboolean       keep_scheme;
+       gboolean       expanded_tilde;
 } CompletionJob;
 
 
@@ -161,15 +162,53 @@ cancel_button_clicked_cb (GtkWidget  *widget,
 }
 
 
+static char *
+_g_file_get_path_with_tilde (GFile *file)
+{
+       char       *path;
+       const char *home;
+
+       path = g_file_get_path (file);
+
+       home = g_get_home_dir ();
+       if ((home != NULL) && g_str_has_prefix (path, home)) {
+               char *tmp = _g_path_join ("~", path + strlen (home), NULL);
+               g_free (path);
+               path = tmp;
+       }
+
+       return path;
+}
+
+
+static char *
+_expand_tilde (const char *path,
+              gboolean   *expanded)
+{
+       if (_g_str_equal (path, "~")) {
+               if (expanded != NULL) *expanded = TRUE;
+               return g_strdup (g_get_home_dir ());
+       }
+       else if (g_str_has_prefix (path, "~/")) {
+               if (expanded != NULL) *expanded = TRUE;
+               return _g_path_join (g_get_home_dir (), path + 2, NULL);
+       }
+
+       if (expanded != NULL) *expanded = FALSE;
+       return g_strdup (path);
+}
+
+
 static char *
 get_location_uri (DialogData  *data,
                  gboolean    *has_scheme,
+                 gboolean    *expanded_tilde,
                  GError     **error)
 {
        char *uri;
        char *scheme;
 
-       uri = g_strdup (gtk_entry_get_text (GTK_ENTRY (GET_WIDGET ("location_entry"))));
+       uri = _expand_tilde (gtk_entry_get_text (GTK_ENTRY (GET_WIDGET ("location_entry"))), expanded_tilde);
        scheme = _g_uri_get_scheme (uri);
        if (scheme == NULL) {
                char *tmp = uri;
@@ -193,7 +232,7 @@ ok_button_clicked_cb (GtkWidget  *widget,
        GError *error = NULL;
        GFile  *location;
 
-       uri = get_location_uri (data, NULL, &error);
+       uri = get_location_uri (data, NULL, NULL, &error);
        if (uri == NULL) {
                char *title;
 
@@ -281,6 +320,8 @@ completion_job_list_ready_cb (GthFileSource *file_source,
                        child = g_file_get_child (job->folder, g_file_info_get_name (file_data->info));
                        if (job->keep_scheme)
                                uri = g_file_get_uri (child);
+                       else if (job->expanded_tilde)
+                               uri = _g_file_get_path_with_tilde (child);
                        else
                                uri = g_file_get_path (child);
 
@@ -308,10 +349,10 @@ static void
 update_completion_list (DialogData *data)
 {
        gboolean  has_scheme;
+       gboolean  expanded_tilde;
        char     *uri;
 
-
-       uri = get_location_uri (data, &has_scheme, NULL);
+       uri = get_location_uri (data, &has_scheme, &expanded_tilde, NULL);
        if (uri == NULL) {
                _g_object_unref (data->last_folder);
                data->last_folder = NULL;
@@ -328,6 +369,7 @@ update_completion_list (DialogData *data)
        data->job = completion_job_new_for_uri (data, uri);
        if (data->job != NULL) {
                data->job->keep_scheme = has_scheme;
+               data->job->expanded_tilde = expanded_tilde;
                data->job->folder = g_file_new_for_uri (uri);
                if (! g_str_has_suffix (uri, "/")) {
                        GFile *parent;