[totem] grilo: Add Delete support

[Bastien Nocera <hadess src gnome org>]

commit 7f205187f8c546e55d92bc73a2216152002ac808
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Jan 23 19:03:04 2014 +0100

    grilo: Add Delete support

 src/plugins/grilo/grilo.ui      |    6 ++
 src/plugins/grilo/totem-grilo.c |  135 ++++++++++++++++++++++++++++++++++++++-
 2 files changed, 138 insertions(+), 3 deletions(-)
---
diff --git a/src/plugins/grilo/grilo.ui b/src/plugins/grilo/grilo.ui
index a3c48c1..c527cbf 100644
--- a/src/plugins/grilo/grilo.ui
+++ b/src/plugins/grilo/grilo.ui
@@ -52,6 +52,8 @@
       <column type="guint"/>
       <!-- column-name priority -->
       <column type="gint"/>
+      <!-- column-name can-remove -->
+      <column type="gboolean"/>
     </columns>
   </object>
   <object class="GtkTreeStore" id="gw_browse_store_results">
@@ -85,6 +87,8 @@
       <column type="guint"/>
       <!-- column-name priority -->
       <column type="gint"/>
+      <!-- column-name can-remove -->
+      <column type="gboolean"/>
     </columns>
   </object>
   <object class="GtkVBox" id="gw_search">
@@ -193,6 +197,8 @@
       <column type="gboolean"/>
       <!-- column-name priority -->
       <column type="gint"/>
+      <!-- column-name can-remove -->
+      <column type="gboolean"/>
     </columns>
   </object>
   <object class="GtkListStore" id="gw_search_store_sources">
diff --git a/src/plugins/grilo/totem-grilo.c b/src/plugins/grilo/totem-grilo.c
index cf53dfb..264f7fd 100644
--- a/src/plugins/grilo/totem-grilo.c
+++ b/src/plugins/grilo/totem-grilo.c
@@ -140,6 +140,11 @@ typedef struct {
        GrlMedia *media;
 } FindMediaData;
 
+typedef struct {
+       GtkTreeModel *model;
+       gboolean all_removable;
+} CanRemoveData;
+
 enum {
        SEARCH_MODEL_SOURCES_SOURCE = 0,
        SEARCH_MODEL_SOURCES_NAME,
@@ -151,7 +156,8 @@ enum {
        MODEL_RESULTS_IS_PRETHUMBNAIL,
        MODEL_RESULTS_PAGE,
        MODEL_RESULTS_REMAINING,
-       MODEL_RESULTS_SORT_PRIORITY
+       MODEL_RESULTS_SORT_PRIORITY,
+       MODEL_RESULTS_CAN_REMOVE
 };
 
 static gchar *
@@ -210,6 +216,29 @@ get_title (GrlMedia *media)
        return g_strdup (grl_media_get_title (media));
 }
 
+static gboolean
+can_remove (GrlSource *source,
+           GrlMedia  *media)
+{
+       const char *url;
+       char *scheme;
+       gboolean ret;
+
+       if (grl_source_supported_operations (source) & GRL_OP_REMOVE)
+               return TRUE;
+       if (GRL_IS_MEDIA_BOX (media))
+               return FALSE;
+       url = grl_media_get_url (media);
+       if (!url)
+               return FALSE;
+
+       scheme = g_uri_parse_scheme (url);
+       ret = g_str_equal (scheme, "file");
+       g_free (scheme);
+
+       return ret;
+}
+
 static void
 get_thumbnail_cb (GObject *source_object,
                  GAsyncResult *res,
@@ -482,6 +511,7 @@ add_media_to_model (GtkTreeStore *model,
                                           GD_MAIN_COLUMN_SECONDARY_TEXT, secondary,
                                           GD_MAIN_COLUMN_MTIME, mtime ? g_date_time_to_unix (mtime) : 0,
                                           MODEL_RESULTS_SORT_PRIORITY, prio,
+                                          MODEL_RESULTS_CAN_REMOVE, can_remove (source, media),
                                           -1);
 
        g_clear_object (&thumbnail);
@@ -1433,18 +1463,48 @@ selection_mode_requested (GdMainView       *view,
 }
 
 static void
+can_remove_foreach (gpointer data,
+                   gpointer user_data)
+{
+       CanRemoveData *can_remove_data = user_data;
+       GtkTreePath *path = data;
+       GtkTreeIter iter;
+       gboolean removable = FALSE;
+
+       gtk_tree_model_get_iter (can_remove_data->model, &iter, path);
+       gtk_tree_model_get (can_remove_data->model, &iter,
+                           MODEL_RESULTS_CAN_REMOVE, &removable,
+                           -1);
+
+       if (!removable)
+               can_remove_data->all_removable = FALSE;
+}
+
+static void
 view_selection_changed_cb (GdMainView       *view,
                           TotemGriloPlugin *self)
 {
+       GtkTreeModel *model;
        GList *list;
        guint count;
+       CanRemoveData data;
 
        list = gd_main_view_get_selection (view);
+       model = gd_main_view_get_model (view);
+
        count = g_list_length (list);
+       if (count == 0) {
+               data.all_removable = FALSE;
+       } else {
+               data.model = model;
+               data.all_removable = TRUE;
+               g_list_foreach (list, can_remove_foreach, &data);
+       }
        g_list_free_full (list, (GDestroyNotify) gtk_tree_path_free);
 
        totem_main_toolbar_set_n_selected (TOTEM_MAIN_TOOLBAR (self->priv->header), count);
        totem_selection_toolbar_set_n_selected (TOTEM_SELECTION_TOOLBAR (self->priv->selection_bar), count);
+       totem_selection_toolbar_set_delete_button_sensitive (TOTEM_SELECTION_TOOLBAR 
(self->priv->selection_bar), data.all_removable);
 }
 
 static void
@@ -1675,10 +1735,75 @@ shuffle_cb (TotemSelectionToolbar *bar,
 }
 
 static void
+delete_foreach (gpointer data,
+               gpointer user_data)
+{
+       GtkTreePath *path = data;
+       GtkTreeModel *view_model = user_data;
+       GtkTreeIter iter;
+       GrlSource *source;
+       GrlMedia *media;
+       gboolean success;
+       GError *error = NULL;
+
+       gtk_tree_model_get_iter (view_model, &iter, path);
+       gtk_tree_model_get (view_model, &iter,
+                           MODEL_RESULTS_CONTENT, &media,
+                           MODEL_RESULTS_SOURCE, &source,
+                           -1);
+
+       success = TRUE;
+       if (grl_source_supported_operations (source) & GRL_OP_REMOVE) {
+               grl_source_remove_sync (source, media, &error);
+               success = (error != NULL);
+       } else {
+               GFile *file;
+
+               file = g_file_new_for_uri (grl_media_get_url (media));
+               success = g_file_trash (file, NULL, &error);
+               g_object_unref (file);
+       }
+       if (!success) {
+               g_warning ("Couldn't remove item '%s': %s",
+                          grl_media_get_title (media),
+                          error->message);
+               g_error_free (error);
+       } else {
+               GtkTreeModel *model;
+               GtkTreeIter real_model_iter;
+
+               if (GTK_IS_TREE_MODEL_FILTER (view_model)) {
+                       model = gtk_tree_model_filter_get_model (GTK_TREE_MODEL_FILTER (view_model));
+                       gtk_tree_model_filter_convert_iter_to_child_iter (GTK_TREE_MODEL_FILTER (view_model),
+                                                                         &real_model_iter, &iter);
+               } else if (GTK_IS_TREE_MODEL_SORT (view_model)) {
+                       model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (view_model));
+                       gtk_tree_model_sort_convert_iter_to_child_iter (GTK_TREE_MODEL_SORT (view_model),
+                                                                       &real_model_iter, &iter);
+               } else {
+                       g_assert_not_reached ();
+               }
+
+               gtk_tree_store_remove (GTK_TREE_STORE (model), &real_model_iter);
+       }
+
+       g_clear_object (&media);
+       g_clear_object (&source);
+}
+
+static void
 delete_cb (TotemSelectionToolbar *bar,
           TotemGriloPlugin      *self)
 {
-       /* FIXME: Call grl_source_remove(); */
+       GtkTreeModel *model;
+       GList *list;
+
+       model = gd_main_view_get_model (GD_MAIN_VIEW (self->priv->browser));
+       list = gd_main_view_get_selection (GD_MAIN_VIEW (self->priv->browser));
+       g_list_foreach (list, delete_foreach, model);
+       g_list_free_full (list, (GDestroyNotify) gtk_tree_path_free);
+
+       g_object_set (G_OBJECT (self->priv->browser), "selection-mode", FALSE, NULL);
 }
 
 static void
@@ -1761,7 +1886,8 @@ setup_browse (TotemGriloPlugin *self,
        /* Selection toolbar */
        self->priv->selection_revealer = GTK_WIDGET (gtk_builder_get_object (builder, "selection_revealer"));
        self->priv->selection_bar = totem_selection_toolbar_new ();
-       totem_selection_toolbar_set_show_delete_button (TOTEM_SELECTION_TOOLBAR (self->priv->selection_bar), 
FALSE);
+       /* FIXME only show when all not all the items are boxes */
+       totem_selection_toolbar_set_show_delete_button (TOTEM_SELECTION_TOOLBAR (self->priv->selection_bar), 
TRUE);
        gtk_container_add (GTK_CONTAINER (self->priv->selection_revealer),
                           self->priv->selection_bar);
        gtk_widget_show (self->priv->selection_bar);
@@ -1894,6 +2020,9 @@ create_debug_window (TotemGriloPlugin *self,
        gtk_tree_view_insert_column_with_data_func (GTK_TREE_VIEW (tree), -1,
                                                    "Remaining", gtk_cell_renderer_text_new (),
                                                    remaining_to_text, NULL, NULL);
+       gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW (tree), -1,
+                                                   "Can Remove", gtk_cell_renderer_toggle_new (),
+                                                   "active", MODEL_RESULTS_CAN_REMOVE, NULL);
 
        gtk_tree_view_set_model (GTK_TREE_VIEW (tree), model);