gtkplacesview: improve networks feedback

Add a spinner when networks are being fetched and make
the network section permanent and show a placeholder with
a message that no networks were found in case there are no
networks. In this way users from previous versions won't be
confused with the fact that no networks are shown.

https://bugzilla.gnome.org/show_bug.cgi?id=753786
This commit is contained in:
Carlos Soriano
2015-08-18 23:26:07 +02:00
parent 7347a69328
commit 89a34210cb

View File

@@ -69,6 +69,9 @@ struct _GtkPlacesViewPrivate
GtkWidget *recent_servers_popover;
GtkWidget *recent_servers_stack;
GtkWidget *stack;
GtkWidget *network_header_spinner;
GtkWidget *network_placeholder;
GtkWidget *network_placeholder_label;
GtkEntryCompletion *address_entry_completion;
GtkListStore *completion_store;
@@ -810,6 +813,89 @@ add_file (GtkPlacesView *view,
insert_row (view, row, is_network);
}
static gboolean
has_networks (GtkPlacesView *view)
{
GList *l;
GtkPlacesViewPrivate *priv;
GList *children;
gboolean has_network = FALSE;
priv = gtk_places_view_get_instance_private (view);
children = gtk_container_get_children (GTK_CONTAINER (priv->listbox));
for (l = children; l != NULL; l = l->next)
{
if (GPOINTER_TO_INT (g_object_get_data (l->data, "is-network")) == TRUE &&
g_object_get_data (l->data, "is-placeholder") == NULL)
{
has_network = TRUE;
break;
}
}
g_list_free (children);
return has_network;
}
static void
update_network_state (GtkPlacesView *view)
{
GtkPlacesViewPrivate *priv;
priv = gtk_places_view_get_instance_private (view);
if (priv->network_placeholder == NULL)
{
priv->network_placeholder = gtk_list_box_row_new ();
priv->network_placeholder_label = gtk_label_new ("");
gtk_label_set_xalign (GTK_LABEL (priv->network_placeholder_label), 0.0);
gtk_widget_set_margin_start (priv->network_placeholder_label, 12);
gtk_widget_set_margin_end (priv->network_placeholder_label, 12);
gtk_widget_set_margin_top (priv->network_placeholder_label, 6);
gtk_widget_set_margin_bottom (priv->network_placeholder_label, 6);
gtk_widget_set_hexpand (priv->network_placeholder_label, TRUE);
gtk_widget_set_sensitive (priv->network_placeholder, FALSE);
gtk_container_add (GTK_CONTAINER (priv->network_placeholder),
priv->network_placeholder_label);
g_object_set_data (G_OBJECT (priv->network_placeholder),
"is-network", GINT_TO_POINTER (TRUE));
/* mark the row as placeholder, so it always goes first */
g_object_set_data (G_OBJECT (priv->network_placeholder),
"is-placeholder", GINT_TO_POINTER (TRUE));
gtk_container_add (GTK_CONTAINER (priv->listbox), priv->network_placeholder);
gtk_widget_show_all (GTK_WIDGET (priv->network_placeholder));
gtk_list_box_invalidate_headers (GTK_LIST_BOX (priv->listbox));
}
if (priv->fetching_networks)
{
gtk_spinner_start (GTK_SPINNER (priv->network_header_spinner));
/* only show a placeholder with a message if the list is empty.
* otherwise just show the spinner in the header */
if (!has_networks (view))
{
gtk_widget_show_all (priv->network_placeholder);
gtk_label_set_text (GTK_LABEL (priv->network_placeholder_label),
_("Searching for network locations"));
}
}
else if (!has_networks (view))
{
gtk_spinner_stop (GTK_SPINNER (priv->network_header_spinner));
gtk_widget_show_all (priv->network_placeholder);
gtk_label_set_text (GTK_LABEL (priv->network_placeholder_label),
_("No networks locations found"));
}
else
{
gtk_spinner_stop (GTK_SPINNER (priv->network_header_spinner));
gtk_widget_hide (priv->network_placeholder);
}
}
static void
populate_networks (GtkPlacesView *view,
GFileEnumerator *enumerator,
@@ -875,6 +961,10 @@ network_enumeration_next_files_finished (GObject *source_object,
g_list_free_full (detected_networks, g_object_unref);
}
/* avoid to update widgets if the operation was cancelled in finalize */
if (priv->listbox != NULL)
update_network_state (view);
}
static void
@@ -952,6 +1042,8 @@ update_places (GtkPlacesView *view)
/* Clear all previously added items */
children = gtk_container_get_children (GTK_CONTAINER (priv->listbox));
g_list_free_full (children, (GDestroyNotify) gtk_widget_destroy);
priv->network_placeholder = NULL;
priv->network_header_spinner = NULL;
/* Add "Computer" row */
file = g_file_new_for_path ("/");
@@ -1770,6 +1862,7 @@ listbox_filter_func (GtkListBoxRow *row,
{
GtkPlacesViewPrivate *priv;
gboolean is_network;
gboolean is_placeholder;
gboolean retval;
gchar *name;
gchar *path;
@@ -1778,10 +1871,14 @@ listbox_filter_func (GtkListBoxRow *row,
retval = FALSE;
is_network = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (row), "is-network"));
is_placeholder = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (row), "is-placeholder"));
if (is_network && priv->local_only)
return FALSE;
if (is_placeholder)
return FALSE;
if (!priv->search_query || priv->search_query[0] == '\0')
return TRUE;
@@ -1807,9 +1904,11 @@ listbox_header_func (GtkListBoxRow *row,
GtkListBoxRow *before,
gpointer user_data)
{
GtkPlacesViewPrivate *priv;
gboolean row_is_network;
gchar *text;
priv = gtk_places_view_get_instance_private (GTK_PLACES_VIEW (user_data));
text = NULL;
row_is_network = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (row), "is-network"));
@@ -1838,19 +1937,38 @@ listbox_header_func (GtkListBoxRow *row,
separator = gtk_separator_new (GTK_ORIENTATION_HORIZONTAL);
label = g_object_new (GTK_TYPE_LABEL,
"hexpand", TRUE,
"use_markup", TRUE,
"margin-top", 6,
"margin-start", 12,
"label", text,
"xalign", 0.0f,
NULL);
if (row_is_network)
{
GtkWidget *header_name;
g_object_set (label,
"margin-top", 6,
"margin-start", 12,
"margin-end", 12,
NULL);
g_object_set (label,
"margin-end", 6,
NULL);
header_name = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
priv->network_header_spinner = gtk_spinner_new ();
g_object_set (priv->network_header_spinner,
"margin-end", 12,
NULL);
gtk_container_add (GTK_CONTAINER (header_name), label);
gtk_container_add (GTK_CONTAINER (header_name), priv->network_header_spinner);
gtk_container_add (GTK_CONTAINER (header), header_name);
}
else
{
g_object_set (label,
"hexpand", TRUE,
"margin-end", 12,
NULL);
gtk_container_add (GTK_CONTAINER (header), label);
}
gtk_container_add (GTK_CONTAINER (header), label);
gtk_container_add (GTK_CONTAINER (header), separator);
gtk_widget_show_all (header);
@@ -1873,6 +1991,8 @@ listbox_sort_func (GtkListBoxRow *row1,
gboolean row2_is_network;
gchar *location1;
gchar *location2;
gboolean *is_placeholder1;
gboolean *is_placeholder2;
gint retval;
row1_is_network = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (row1), "is-network"));
@@ -1883,6 +2003,17 @@ listbox_sort_func (GtkListBoxRow *row1,
if (retval != 0)
return retval;
is_placeholder1 = g_object_get_data (G_OBJECT (row1), "is-placeholder");
is_placeholder2 = g_object_get_data (G_OBJECT (row2), "is-placeholder");
/* we can't have two placeholders for the same section */
g_assert (!(is_placeholder1 != NULL && is_placeholder2 != NULL));
if (is_placeholder1)
return -1;
if (is_placeholder2)
return 1;
g_object_get (row1, "path", &location1, NULL);
g_object_get (row2, "path", &location2, NULL);