[gthumb] folder tree: added root and root-uri properties

[Paolo Bacchilega <paobac src gnome org>]

commit d2958c99d09f3d0f8dc47bd9f40130bd88c18851
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Fri Nov 1 14:29:27 2019 +0100

    folder tree: added root and root-uri properties
    
    If no root is specified use the VFS root (gthumb-vfs:///).

 gthumb/gth-folder-tree.c | 106 +++++++++++++++++++++++++++++++++++++++++++----
 gthumb/gth-folder-tree.h |   2 +-
 2 files changed, 98 insertions(+), 10 deletions(-)
---
diff --git a/gthumb/gth-folder-tree.c b/gthumb/gth-folder-tree.c
index 703a7a2a..e4036f19 100644
--- a/gthumb/gth-folder-tree.c
+++ b/gthumb/gth-folder-tree.c
@@ -34,6 +34,7 @@
 #include "gth-request-dialog.h"
 
 
+#define DEFAULT_URI "gthumb-vfs:///"
 #define EMPTY_URI   "..."
 #define LOADING_URI "."
 #define PARENT_URI  ".."
@@ -63,6 +64,14 @@ enum {
        NUM_COLUMNS
 };
 
+
+enum {
+       PROP_0,
+       PROP_ROOT,
+       PROP_ROOT_URI
+};
+
+
 enum {
        FOLDER_POPUP,
        LIST_CHILDREN,
@@ -116,6 +125,70 @@ G_DEFINE_TYPE_WITH_CODE (GthFolderTree,
                         G_ADD_PRIVATE (GthFolderTree))
 
 
+static void
+gth_folder_tree_set_property (GObject      *object,
+                             guint         property_id,
+                             const GValue *value,
+                             GParamSpec   *pspec)
+{
+       GthFolderTree *self;
+       const char    *uri;
+
+       self = GTH_FOLDER_TREE (object);
+
+       switch (property_id) {
+       case PROP_ROOT:
+               _g_object_unref (self->priv->root);
+               self->priv->root = _g_object_ref (g_value_get_object (value));
+               if (self->priv->root == NULL)
+                       self->priv->root = g_file_new_for_uri (DEFAULT_URI);
+               break;
+
+       case PROP_ROOT_URI:
+               _g_object_unref (self->priv->root);
+               self->priv->root = NULL;
+               uri = g_value_get_string (value);
+               if (uri != NULL)
+                       self->priv->root = g_file_new_for_uri (uri);
+               if (self->priv->root == NULL)
+                       self->priv->root = g_file_new_for_uri (DEFAULT_URI);
+               break;
+
+       default:
+               break;
+       }
+}
+
+
+static void
+gth_folder_tree_get_property (GObject    *object,
+                                  guint       property_id,
+                                  GValue     *value,
+                                  GParamSpec *pspec)
+{
+       GthFolderTree *self;
+       char          *uri;
+
+       self = GTH_FOLDER_TREE (object);
+
+       switch (property_id) {
+       case PROP_ROOT:
+               g_value_set_object (value, self->priv->root);
+               break;
+
+       case PROP_ROOT_URI:
+               uri = g_file_get_uri (self->priv->root);
+               g_value_set_string (value, uri);
+               g_free (uri);
+               break;
+
+       default:
+               G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+               break;
+       }
+}
+
+
 static void remove_all_locations_from_the_monitor (GthFolderTree *folder_tree);
 
 
@@ -153,11 +226,32 @@ gth_folder_tree_class_init (GthFolderTreeClass *class)
        GtkWidgetClass *widget_class;
 
        object_class = (GObjectClass*) class;
+       object_class->set_property = gth_folder_tree_set_property;
+       object_class->get_property = gth_folder_tree_get_property;
        object_class->finalize = gth_folder_tree_finalize;
 
        widget_class = (GtkWidgetClass*) class;
        widget_class->drag_begin = NULL;
 
+       /* properties */
+
+       g_object_class_install_property (object_class,
+                                        PROP_ROOT,
+                                        g_param_spec_object ("root",
+                                                             "Root",
+                                                             "The root of the folder tree",
+                                                             G_TYPE_FILE,
+                                                             G_PARAM_READWRITE));
+       g_object_class_install_property (object_class,
+                                        PROP_ROOT_URI,
+                                        g_param_spec_string ("root-uri",
+                                                             "Root uri",
+                                                             "The root of the folder tree as an uri",
+                                                             NULL,
+                                                             G_PARAM_READWRITE));
+
+       /* signals */
+
        gth_folder_tree_signals[FOLDER_POPUP] =
                g_signal_new ("folder_popup",
                              G_TYPE_FROM_CLASS (class),
@@ -1264,7 +1358,7 @@ gth_folder_tree_init (GthFolderTree *folder_tree)
        GtkTreeSelection *selection;
 
        folder_tree->priv = gth_folder_tree_get_instance_private (folder_tree);
-       folder_tree->priv->root = NULL;
+       folder_tree->priv->root = g_file_new_for_uri (DEFAULT_URI);
        folder_tree->priv->entry_points = g_hash_table_new_full (g_file_hash, (GEqualFunc) g_file_equal, 
g_object_unref, NULL);
        folder_tree->priv->recalc_entry_points = FALSE;
        folder_tree->priv->tree_store = gtk_tree_store_new (NUM_COLUMNS,
@@ -1347,15 +1441,9 @@ gth_folder_tree_init (GthFolderTree *folder_tree)
 
 
 GtkWidget *
-gth_folder_tree_new (const char *uri)
+gth_folder_tree_new (const char *root)
 {
-       GthFolderTree *folder_tree;
-
-       folder_tree = g_object_new (GTH_TYPE_FOLDER_TREE, NULL);
-       if (uri != NULL)
-               folder_tree->priv->root = g_file_new_for_uri (uri);
-
-       return (GtkWidget *) folder_tree;
+       return g_object_new (GTH_TYPE_FOLDER_TREE, "root-uri", root, NULL);
 }
 
 
diff --git a/gthumb/gth-folder-tree.h b/gthumb/gth-folder-tree.h
index dc835327..b8e4446e 100644
--- a/gthumb/gth-folder-tree.h
+++ b/gthumb/gth-folder-tree.h
@@ -65,7 +65,7 @@ struct _GthFolderTreeClass {
 };
 
 GType         gth_folder_tree_get_type           (void);
-GtkWidget *   gth_folder_tree_new                (const char           *uri);
+GtkWidget *   gth_folder_tree_new                (const char           *root);
 void          gth_folder_tree_set_list           (GthFolderTree        *folder_tree,
                                                  GFile                *root,
                                                  GList                *files,