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input-device: Disconnect signals on actors where the device has a cursor

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Otherwise the signals are left dangling if the device is removed, causing
possible invalid memory accesses afterwards.
This commit is contained in:
Carlos Garnacho 2015-02-04 16:36:23 +01:00
parent 9d32146edb
commit 40a5eff5d4
1 changed files with 27 additions and 8 deletions
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35
clutter/clutter/clutter-input-device.c
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@ -73,7 +73,11 @@ enum
};
static void _clutter_input_device_free_touch_info (gpointer data);
static void on_cursor_actor_destroy (ClutterActor *actor,
ClutterInputDevice *device);
static void on_cursor_actor_reactive_changed (ClutterActor *actor,
GParamSpec *pspec,
ClutterInputDevice *device);
static GParamSpec *obj_props[PROP_LAST] = { NULL, };
@ -103,6 +107,18 @@ clutter_input_device_dispose (GObject *gobject)
g_clear_pointer (&device->scroll_info, g_array_unref);
g_clear_pointer (&device->touch_sequences_info, g_hash_table_unref);
if (device->cursor_actor)
{
g_signal_handlers_disconnect_by_func (device->cursor_actor,
G_CALLBACK (on_cursor_actor_destroy),
device);
g_signal_handlers_disconnect_by_func (device->cursor_actor,
G_CALLBACK (on_cursor_actor_reactive_changed),
device);
_clutter_actor_set_has_pointer (device->cursor_actor, FALSE);
device->cursor_actor = NULL;
}
if (device->inv_touch_sequence_actors)
{
GHashTableIter iter;
@ -110,7 +126,16 @@ clutter_input_device_dispose (GObject *gobject)
g_hash_table_iter_init (&iter, device->inv_touch_sequence_actors);
while (g_hash_table_iter_next (&iter, &key, &value))
g_list_free (value);
{
g_signal_handlers_disconnect_by_func (key,
G_CALLBACK (on_cursor_actor_destroy),
device);
g_signal_handlers_disconnect_by_func (device->cursor_actor,
G_CALLBACK (on_cursor_actor_reactive_changed),
device);
_clutter_actor_set_has_pointer (key, FALSE);
g_list_free (value);
}
g_hash_table_unref (device->inv_touch_sequence_actors);
device->inv_touch_sequence_actors = NULL;
@ -598,12 +623,6 @@ _clutter_input_device_get_actor (ClutterInputDevice *device,
return info->actor;
}
static void on_cursor_actor_destroy (ClutterActor *actor,
ClutterInputDevice *device);
static void on_cursor_actor_reactive_changed (ClutterActor *actor,
GParamSpec *pspec,
ClutterInputDevice *device);
static void
_clutter_input_device_associate_actor (ClutterInputDevice *device,
ClutterEventSequence *sequence,