static JsonGenerator *
_model_to_generator (MexQueueModel *model)
{
gint i;
JsonArray *json_array;
JsonNode *root;
JsonGenerator *generator;
json_array = json_array_sized_new (mex_model_get_length (MEX_MODEL (model)));
for (i = 0; i < mex_model_get_length (MEX_MODEL (model)); i++)
{
MexContent *content;
JsonNode *content_node;
content = mex_model_get_content (MEX_MODEL (model), i);
content_node = json_gobject_serialize (G_OBJECT (content));
json_array_add_element (json_array, content_node);
}
generator = json_generator_new ();
root = json_node_new (JSON_NODE_ARRAY);
json_node_set_array (root, json_array);
json_generator_set_root (generator, root);
json_array_unref (json_array);
json_node_free (root);
return generator;
}
/**
* mex_media_controls_get_enqueued:
* @controls: The MexMediaControls widget
* @current_content: MexContent that the player is currently playing
*
* If the media controls has been given a queue model then return the next
* MexContent in the queue model.
*
* Return value: The next content in the queue or NULL
*/
MexContent *
mex_media_controls_get_enqueued (MexMediaControls *controls,
MexContent *current_content)
{
MexMediaControlsPrivate *priv;
MexModel *queue;
MexContent *content = NULL;
if (!MEX_IS_MEDIA_CONTROLS (controls) || !MEX_IS_CONTENT (current_content))
return NULL;
priv = controls->priv;
if (priv->is_queue_model == FALSE)
return NULL;
queue = mex_proxy_get_model (priv->proxy);
if (queue)
{
gint idx, length;
idx = mex_model_index (queue, current_content);
length = mex_model_get_length (queue);
if (idx++ > length)
return NULL;
content = mex_model_get_content (queue, idx);
}
return content;
}
static void
_add_remove_recursive (MexModel *queue_model, MexModel *model, gboolean add)
{
gint len, i;
len = mex_model_get_length (model);
for (i=0; i < len; i++)
{
MexContent *content;
const gchar *mimetype;
content = mex_model_get_content (model, i);
mimetype = mex_content_get_metadata (content,
MEX_CONTENT_METADATA_MIMETYPE);
/* Don't accidentally add a directory or group to the queue */
if (!g_strcmp0 (mimetype, "x-grl/box")
|| !g_strcmp0 (mimetype, "x-mex/group"))
continue;
if (add)
mex_model_add_content (queue_model, content);
else
mex_model_remove_content (queue_model, content);
}
g_object_unref (model);
}
static void
mex_aggregate_model_clear_model (MexAggregateModel *self,
MexModel *model)
{
gint i;
GList *c, *remove;
MexContent *content;
MexAggregateModelPrivate *priv = self->priv;
i = 0;
remove = NULL;
while ((content = mex_model_get_content (MEX_MODEL (self), i++)))
{
MexModel *parent = g_hash_table_lookup (priv->content_to_model, content);
if (parent == model)
{
g_hash_table_remove (priv->content_to_model, content);
remove = g_list_prepend (remove, content);
}
}
/* Remove the contents after the loop, to avoid modifying what we're
* iterating over.
*/
for (c = remove; c; c = c->next)
mex_model_remove_content (MEX_MODEL (self), MEX_CONTENT (c->data));
g_list_free (remove);
}
static void
mex_view_model_set_model (MexViewModel *self,
MexModel *model)
{
MexViewModelPrivate *priv = self->priv;
if (model == priv->model)
return;
if (model)
{
MexContent *content;
GController *controller;
gint i = 0;
priv->model = g_object_ref_sink (model);
controller = mex_model_get_controller (model);
g_signal_connect (controller, "changed",
G_CALLBACK (mex_view_model_controller_changed_cb),
self);
/* copy initial items across */
g_ptr_array_set_size (priv->internal_items,
mex_model_get_length (priv->model));
while ((content = mex_model_get_content (priv->model, i)))
priv->internal_items->pdata[i++] = content;
}
mex_view_model_refresh_external_items (self);
}
/**
* mex_column_populate:
*
* Add an item to the column for each item in the current model
*/
static void
mex_column_populate (MexColumn *column)
{
MexContent *content;
gint i = 0;
g_return_if_fail (column->priv->model != NULL);
while ((content = mex_model_get_content (column->priv->model, i)))
mex_column_add_content (column, content, i++);
}
static void
mex_search_plugin_model_changed_cb (GController *controller,
GControllerAction action,
GControllerReference *ref,
MexModel *model)
{
gint i;
gint n_indices = g_controller_reference_get_n_indices (ref);
/* If the MIME type is unset, set one so that it's still playable in the
* main UI. This plugin will only use white-listed Grilo plugins that we
* know return playable media, so this is OK.
*/
switch (action)
{
case G_CONTROLLER_ADD:
for (i = 0; i < n_indices; i++)
{
gchar *notify;
MexContent *content;
const gchar *property_name;
gint content_index = g_controller_reference_get_index_uint (ref, i);
content = mex_model_get_content (model, content_index);
/* Make sure the mime-type remains useful */
property_name =
mex_content_get_property_name (content,
MEX_CONTENT_METADATA_MIMETYPE);
if (property_name)
{
notify = g_strconcat ("notify::", property_name, NULL);
g_signal_connect (content, notify,
G_CALLBACK (mex_search_plugin_mimetype_set_cb),
NULL);
g_free (notify);
}
mex_search_plugin_mimetype_set_cb (content);
}
break;
default:
break;
}
}
void
mex_aggregate_model_add_model (MexAggregateModel *aggregate,
MexModel *model)
{
gint i;
MexContent *content;
GController *controller;
MexAggregateModelPrivate *priv;
g_return_if_fail (MEX_IS_AGGREGATE_MODEL (aggregate));
g_return_if_fail (MEX_IS_MODEL (model));
priv = aggregate->priv;
if (g_list_find (priv->models, model))
return;
/* Add a link back to the model from the controller */
controller = mex_model_get_controller (model);
g_hash_table_insert (priv->controller_to_model, controller, model);
/* Add model to list */
priv->models = g_list_insert_sorted (priv->models, model,
(GCompareFunc) mex_aggregate_model_sort_func);
/* Add existing items */
i = 0;
while ((content = mex_model_get_content (model, i)))
{
g_hash_table_insert (priv->content_to_model, content, model);
mex_model_add_content (MEX_MODEL (aggregate), content);
i++;
}
/* Connect to the controller changed signal */
g_signal_connect (controller, "changed",
G_CALLBACK (mex_aggregate_model_controller_changed_cb),
aggregate);
/* Emit added signal */
g_signal_emit (aggregate, signals[MODEL_ADDED], 0, model);
}
static void
mex_music_player_set_context (MexContentView *player,
MexModel *model)
{
MexMusicPlayerPrivate *priv = MEX_MUSIC_PLAYER (player)->priv;
ClutterActor *box, *button;
MexContent *content;
gint i;
if (priv->model)
g_object_unref (priv->model);
priv->model = model;
if (model)
g_object_ref (model);
box = mex_script_get_actor (priv->script, "tracks");
clutter_actor_remove_all_children (box);
for (i = 0; (content = mex_model_get_content (model, i)); i++)
{
const gchar *title;
title = mex_content_get_metadata (content, MEX_CONTENT_METADATA_TITLE);
button = mx_button_new_with_label (title);
mx_stylable_set_style_class (MX_STYLABLE (button), "Track");
mx_button_set_is_toggle (MX_BUTTON (button), TRUE);
g_object_set_data (G_OBJECT (button), "content", content);
g_signal_connect (button, "clicked",
G_CALLBACK (mex_music_player_item_clicked), player);
mx_button_set_icon_position (MX_BUTTON (button), MX_POSITION_RIGHT);
clutter_actor_add_child (box, button);
}
}
static void
mex_music_player_update_index (MexMusicPlayer *player,
gint new_index)
{
MexMusicPlayerPrivate *priv = player->priv;
gint content_index, length;
MexContent *new_content;
length = mex_model_get_length (priv->model);
if (priv->repeat)
{
if (new_index >= length)
new_index = 0;
else if (new_index < 0)
new_index = length - 1;
}
else
{
if (new_index >= length)
new_index = length - 1;
else if (new_index < 0)
new_index = 0;
}
priv->current_index = new_index;
if (priv->shuffle)
content_index = g_array_index (priv->shuffle, gint, priv->current_index);
else
content_index = priv->current_index;
new_content = mex_model_get_content (priv->model, content_index);
mex_music_player_set_content (MEX_CONTENT_VIEW (player), new_content);
}
/**
* mex_column_controller_changed:
*
* Callback for when the current model controller's "changed" signal is emitted
*/
static void
mex_column_controller_changed (GController *controller,
GControllerAction action,
GControllerReference *ref,
MexColumn *column)
{
MexColumnPrivate *priv = column->priv;
gint i, n_indices;
MexContent *content;
n_indices = g_controller_reference_get_n_indices (ref);
switch (action)
{
case G_CONTROLLER_ADD:
for (i = 0; i < n_indices; i++)
{
gint content_index = g_controller_reference_get_index_uint (ref, i);
content = mex_model_get_content (priv->model, content_index);
mex_column_add_content (column, content, content_index);
}
break;
case G_CONTROLLER_REMOVE:
for (i = 0; i < n_indices; i++)
{
GList *lnk;
gint content_index = g_controller_reference_get_index_uint (ref, i);
lnk = g_list_nth (priv->children, content_index);
if (lnk->data == priv->current_focus)
priv->current_focus = NULL;
clutter_actor_destroy (lnk->data);
priv->children = g_list_delete_link (priv->children, lnk);
}
break;
case G_CONTROLLER_UPDATE:
break;
case G_CONTROLLER_CLEAR:
mex_column_clear (column);
break;
case G_CONTROLLER_REPLACE:
mex_column_clear (column);
mex_column_populate (column);
break;
case G_CONTROLLER_INVALID_ACTION:
g_warning (G_STRLOC ": Controller has issued an error");
break;
default:
g_warning (G_STRLOC ": Unhandled action");
break;
}
clutter_actor_queue_relayout (CLUTTER_ACTOR (column));
}
static void
_controller_changed_cb (GController *controller,
GControllerAction action,
GControllerReference *ref,
MexQueueModel *model)
{
MexQueueModelPrivate *priv = model->priv;
guint index_;
MexContent *content;
/*
* MexGenericContent only does single items at a time so we have an
* assumption here that our reference only contains a single item
*/
if (action == G_CONTROLLER_ADD || action == G_CONTROLLER_REMOVE)
{
index_ = g_controller_reference_get_index_uint (ref, 0);
content = mex_model_get_content (MEX_MODEL (model), index_);
}
if (action == G_CONTROLLER_ADD)
{
mex_content_set_metadata (content,
MEX_CONTENT_METADATA_QUEUED,
"yes");
}
else if (action == G_CONTROLLER_REMOVE)
{
mex_content_set_metadata (content,
MEX_CONTENT_METADATA_QUEUED,
NULL);
}
else if (action == G_CONTROLLER_CLEAR)
{
gint model_length;
model_length = mex_model_get_length (MEX_MODEL (model));
for (index_=0; index_ < model_length; index_++)
{
content = mex_model_get_content (MEX_MODEL (model), index_);
mex_content_set_metadata (content,
MEX_CONTENT_METADATA_QUEUED,
NULL);
}
}
else
{
GEnumClass *enum_class;
enum_class = g_type_class_ref (G_TYPE_CONTROLLER_ACTION);
g_critical (G_STRLOC ": Unexpected GController action: %s",
(g_enum_get_value (enum_class,
action))->value_name);
g_type_class_unref (enum_class);
}
if (priv->serialise_idle_id)
return;
/* Need to use a high priority idle here since we want to try and write
* *after* the content has been removed from the model
*/
priv->serialise_idle_id = g_idle_add_full (G_PRIORITY_DEFAULT,
(GSourceFunc)_serialise_idle_cb,
g_object_ref (model),
g_object_unref);
}
static void
mex_aggregate_model_controller_changed_cb (GController *controller,
GControllerAction action,
GControllerReference *ref,
MexAggregateModel *self)
{
gint i;
gint n_indices = 0;
MexAggregateModelPrivate *priv = self->priv;
MexModel *model = g_hash_table_lookup (priv->controller_to_model, controller);
if (!model)
{
g_warning (G_STRLOC ": Signal from unknown controller");
return;
}
if (ref)
n_indices = g_controller_reference_get_n_indices (ref);
switch (action)
{
case G_CONTROLLER_ADD:
for (i = 0; i < n_indices; i++)
{
MexContent *content;
gint content_index = g_controller_reference_get_index_uint (ref, i);
content = mex_model_get_content (model, content_index);
g_hash_table_insert (priv->content_to_model, content, model);
mex_model_add_content (MEX_MODEL (self), content);
}
break;
case G_CONTROLLER_REMOVE:
for (i = 0; i < n_indices; i++)
{
MexContent *content;
gint content_index = g_controller_reference_get_index_uint (ref, i);
content = mex_model_get_content (model, content_index);
g_hash_table_remove (priv->content_to_model, content);
mex_model_remove_content (MEX_MODEL (self), content);
}
break;
case G_CONTROLLER_UPDATE:
break;
case G_CONTROLLER_CLEAR:
mex_aggregate_model_clear_model (self, model);
break;
case G_CONTROLLER_REPLACE:
{
MexContent *content;
mex_aggregate_model_clear_model (self, model);
i = 0;
while ((content = mex_model_get_content (model, i++)))
{
g_hash_table_insert (priv->content_to_model, content, model);
mex_model_add_content (MEX_MODEL (self), content);
}
}
break;
case G_CONTROLLER_INVALID_ACTION:
g_warning (G_STRLOC ": Proxy controller has issued an error");
break;
default:
break;
}
}
/**
* mex_proxy_start_at:
* @proxy: Proxy to add content to
* @start_at_content: First content item in the model to add to
* the proxy
* @loop: Whether to loop back to the beginning of the
* associated #MexModel's content items once the last item is reached;
* if %TRUE, content items before the @start_at_content will be
* added once the last of the model's content items is reached;
* if %FALSE, only content items from @start_at_content to the last of
* the model's content items are added
*
* Add content from a model to a proxy.
*/
void
mex_proxy_start_at (MexProxy *proxy,
MexContent *start_at_content,
gboolean loop)
{
gint i;
MexContent *content;
MexProxyPrivate *priv;
GController *controller;
g_return_if_fail (MEX_IS_PROXY (proxy));
priv = proxy->priv;
if (priv->started)
{
g_warning (G_STRLOC ": Trying to start an already started proxy");
return;
}
mex_proxy_clear (proxy);
priv->started = TRUE;
if (!priv->model)
return;
if (!G_TYPE_IS_OBJECT (priv->object_type))
{
g_warning (G_STRLOC ": Proxy type is not an object type");
return;
}
/* Iterate over existing objects */
if (!start_at_content)
{
i = 0;
while ((content = mex_model_get_content (priv->model, i++)))
mex_proxy_add_content (proxy, content);
}
else
{
gint start_at;
gboolean looped = FALSE;
start_at = mex_model_index (priv->model, start_at_content);
if (start_at == -1)
{
g_critical (G_STRLOC ": Content %p not found in %p model",
start_at_content, priv->model);
return;
}
for (i = start_at; TRUE; i++)
{
/* break out if looped and back around to start_at */
if (loop && looped && i == start_at)
break;
if ((content = mex_model_get_content (priv->model, i)))
{
mex_proxy_add_content (proxy, content);
}
else
{
if (loop)
{
looped = TRUE;
i = -1;
}
else
break;
}
}
}
controller = mex_model_get_controller (priv->model);
g_signal_connect_after (controller, "changed",
G_CALLBACK (mex_proxy_controller_changed_cb), proxy);
}
static void
mex_proxy_controller_changed_cb (GController *controller,
GControllerAction action,
GControllerReference *ref,
MexProxy *proxy)
{
gint i, n_indices;
MexContent *content;
MexProxyPrivate *priv = proxy->priv;
n_indices = g_controller_reference_get_n_indices (ref);
switch (action)
{
case G_CONTROLLER_ADD:
for (i = 0; i < n_indices; i++)
{
gint content_index = g_controller_reference_get_index_uint (ref, i);
content = mex_model_get_content (priv->model, content_index);
mex_proxy_add_content (proxy, content);
}
break;
case G_CONTROLLER_REMOVE:
{
gint length, fillin = 0, start_fillin;
GList *positions = NULL, *position;
for (i = 0; i < n_indices; i++)
{
gint content_index = g_controller_reference_get_index_uint (ref, i);
if (content_index >= priv->limit)
positions = g_list_insert_sorted_with_data (positions,
GINT_TO_POINTER (content_index),
_insert_position,
NULL);
else
fillin++;
content = mex_model_get_content (priv->model, content_index);
mex_proxy_remove_content (proxy, content);
}
position = positions;
length = mex_model_get_length (priv->model);
start_fillin = priv->limit;
for (i = 0;
i < MIN (fillin, (length - (gint) priv->limit));
i++)
{
if ((position != NULL) &&
(start_fillin == GPOINTER_TO_INT (position->data)))
{
while ((position != NULL) &&
(start_fillin == GPOINTER_TO_INT (position->data)))
{
start_fillin++;
if (start_fillin > GPOINTER_TO_INT (position->data))
position = position->next;
}
}
content = mex_model_get_content (priv->model, start_fillin);
mex_proxy_add_content (proxy, content);
start_fillin++;
}
g_list_free (positions);
}
break;
case G_CONTROLLER_UPDATE:
/* Should be no need for this, GBinding sorts it out for us :) */
break;
case G_CONTROLLER_CLEAR:
mex_proxy_clear (proxy);
break;
case G_CONTROLLER_REPLACE:
mex_proxy_clear (proxy);
i = 0;
while ((content = mex_model_get_content (priv->model, i++)))
mex_proxy_add_content (proxy, content);
break;
case G_CONTROLLER_INVALID_ACTION:
g_warning (G_STRLOC ": Proxy controller has issued an error");
break;
default:
g_warning (G_STRLOC ": Unhandled action");
break;
}
}
static void
mex_view_model_controller_changed_cb (GController *controller,
GControllerAction action,
GControllerReference *ref,
MexViewModel *self)
{
gint n_indices, i;
MexViewModelPrivate *priv = self->priv;
n_indices = g_controller_reference_get_n_indices (ref);
switch (action)
{
case G_CONTROLLER_ADD:
{
guint view_length;
/* increase the internal items array by the number of new items */
view_length = mex_model_get_length (MEX_MODEL (self));
g_ptr_array_set_size (priv->internal_items, view_length + n_indices);
/* set the new items */
while (n_indices-- > 0)
{
MexContent *content;
guint idx;
idx = g_controller_reference_get_index_uint (ref, n_indices);
content = mex_model_get_content (priv->model, idx);
g_signal_connect (content, "notify", G_CALLBACK (content_notify_cb),
self);
priv->internal_items->pdata[view_length + n_indices] = content;
}
}
break;
case G_CONTROLLER_REMOVE:
{
while (n_indices-- > 0)
{
MexContent *content;
gint idx;
idx = g_controller_reference_get_index_int (ref, n_indices);
content = mex_model_get_content (priv->model, idx);
g_signal_handlers_disconnect_by_func (content,
G_CALLBACK (content_notify_cb),
self);
g_ptr_array_remove_fast (priv->internal_items, content);
}
}
break;
case G_CONTROLLER_UPDATE:
/* Should be no need for this, GBinding sorts it out for us :) */
break;
case G_CONTROLLER_CLEAR:
for (i = 0; i < priv->external_items->len; i++)
g_object_unref (g_ptr_array_index (priv->external_items, i));
g_ptr_array_set_size (priv->external_items, 0);
for (i = 0; i < priv->external_items->len; i++)
g_signal_handlers_disconnect_by_func (g_ptr_array_index (priv->external_items, i),
G_CALLBACK (content_notify_cb),
self);
g_ptr_array_set_size (priv->internal_items, 0);
break;
case G_CONTROLLER_REPLACE:
g_warning (G_STRLOC ": G_CONTROLLER_REPLACE not implemented by MexViewModel");
break;
case G_CONTROLLER_INVALID_ACTION:
g_warning (G_STRLOC ": View-model controller has issued an error");
break;
default:
g_warning (G_STRLOC ": Unhandled action");
break;
}
mex_view_model_refresh_external_items (self);
}
