static void
mex_column_expand_children (MexColumn *column,
ClutterActor *start_at)
{
MexColumnPrivate *priv = column->priv;
guint offset, increment;
GList *c;
gchar **markers;
gint i;
gboolean start;
if (priv->n_items < 1)
return;
/* Open/close boxes as appropriate */
offset = 0;
increment = 150;
clutter_timeline_set_duration (priv->expand_timeline,
priv->n_items * increment);
clutter_timeline_set_delay (priv->expand_timeline, 350);
/* remove the previous markers */
markers = clutter_timeline_list_markers (priv->expand_timeline, -1, NULL);
if (markers)
{
for (i = 0; markers[i]; i++)
{
clutter_timeline_remove_marker (priv->expand_timeline,
markers[i]);
}
}
g_strfreev (markers);
/* start is TRUE if start_at is NULL, otherwise it is set to TRUE when the
* start_at item is found */
start = (start_at == NULL);
for (c = priv->children; c; c = g_list_next (c))
{
gchar signal_name[32+16];
ClutterActor *child = c->data;
if (!MEX_IS_CONTENT_BOX (child))
continue;
mex_content_box_set_important (MEX_CONTENT_BOX (child), TRUE);
mex_column_expand_child (child);
/* continue until the start item has been found */
if (child == start_at)
start = TRUE;
if (!start)
continue;
/* Note, 'marker-reached::' is 16 characters long */
g_snprintf (signal_name, G_N_ELEMENTS (signal_name),
"marker-reached::%p", child);
/* stagger opening */
clutter_timeline_add_marker_at_time (priv->expand_timeline,
signal_name + 16, offset);
g_signal_connect_swapped (priv->expand_timeline, signal_name,
G_CALLBACK (mex_column_expand_child),
child);
offset += increment;
}
clutter_timeline_start (priv->expand_timeline);
}
static void
mex_column_notify_focused_cb (MxFocusManager *manager,
GParamSpec *pspec,
MexColumn *self)
{
GList *c;
guint offset, increment;
ClutterActor *focused, *focused_cell;
gboolean cell_has_focus, has_focus, open, set_tile_important;
MexColumnPrivate *priv = self->priv;
focused = (ClutterActor *)mx_focus_manager_get_focused (manager);
/* Check if we have focus, and what child is focused */
focused_cell = NULL;
set_tile_important = FALSE;
cell_has_focus = has_focus = FALSE;
if (focused)
{
gboolean contains_column = FALSE;
ClutterActor *parent = clutter_actor_get_parent (focused);
while (parent)
{
if (parent == (ClutterActor *)self)
{
has_focus = TRUE;
if (!priv->has_focus)
{
set_tile_important = TRUE;
priv->has_focus = TRUE;
}
if (focused != priv->header)
{
cell_has_focus = TRUE;
focused_cell = focused;
}
break;
}
else if (MEX_IS_COLUMN (parent))
{
contains_column = TRUE;
}
focused = parent;
parent = clutter_actor_get_parent (focused);
}
if (!contains_column)
has_focus = TRUE;
}
if (!has_focus && priv->has_focus)
{
priv->has_focus = FALSE;
set_tile_important = TRUE;
}
/* Scroll the adjustment to the top */
if (!cell_has_focus && priv->adjustment)
mx_adjustment_interpolate (priv->adjustment, 0, 250,
CLUTTER_EASE_OUT_CUBIC);
/* Open/close boxes as appropriate */
offset = 0;
increment = 150;
/* If we're changing the tile importance, initialise the state manager */
if (set_tile_important && priv->n_items > 0)
{
if (priv->expand_timeline)
g_object_unref (priv->expand_timeline);
priv->expand_timeline =
clutter_timeline_new (priv->n_items * increment);
clutter_timeline_set_delay (priv->expand_timeline, 350);
}
/* Loop through children and set the expander box important/unimportant
* as necessary, and if necessary, do the same for the tile inside the
* expander-box.
*/
open = has_focus && !cell_has_focus;
for (c = priv->children; c; c = c->next)
{
gchar signal_name[32+16];
ClutterActor *child = c->data;
if ((!priv->collapse && priv->has_focus) || (child == focused_cell))
open = TRUE;
if (!MEX_IS_EXPANDER_BOX (child))
continue;
/* Note, 'marker-reached::' is 16 characters long */
g_snprintf (signal_name, G_N_ELEMENTS (signal_name),
"marker-reached::%p", child);
if (MEX_IS_CONTENT_BOX (child))
{
ClutterActor *tile =
mex_content_box_get_tile (MEX_CONTENT_BOX (child));
mex_tile_set_important (MEX_TILE (tile), priv->has_focus);
}
if (!open)
{
if (priv->expand_timeline)
{
if (clutter_timeline_has_marker (priv->expand_timeline,
signal_name + 16))
clutter_timeline_remove_marker (priv->expand_timeline,
signal_name + 16);
g_signal_handlers_disconnect_by_func (priv->expand_timeline,
mex_column_expand_drawer_cb,
child);
}
mex_expander_box_set_important (MEX_EXPANDER_BOX (child), FALSE);
}
else if (set_tile_important)
{
mex_expander_box_set_important (MEX_EXPANDER_BOX (child), FALSE);
clutter_timeline_add_marker_at_time (priv->expand_timeline,
signal_name + 16, offset);
g_signal_connect_swapped (priv->expand_timeline, signal_name,
G_CALLBACK (mex_column_expand_drawer_cb),
child);
offset += increment;
}
else
mex_expander_box_set_important (MEX_EXPANDER_BOX (child), TRUE);
}
if (priv->expand_timeline && set_tile_important && (offset >= increment))
clutter_timeline_start (priv->expand_timeline);
}
