Commit b824f8bb authored by Christian Hergert's avatar Christian Hergert
Browse files

libide: add IdeObject::destroy() gsignal

This allows us to hook when we have lost connection to our IdeContext.
Queued operation should be released during this signal.
parent 09e89427
......@@ -16,14 +16,18 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define G_LOG_DOMAIN "ide-object"
#include <glib/gi18n.h>
#include "ide-context.h"
#include "ide-debug.h"
#include "ide-object.h"
typedef struct
{
IdeContext *context;
guint is_destroyed : 1;
} IdeObjectPrivate;
typedef struct
......@@ -44,7 +48,41 @@ enum {
LAST_PROP
};
enum {
DESTROY,
LAST_SIGNAL
};
static GParamSpec *gParamSpecs [LAST_PROP];
static guint gSignals [LAST_SIGNAL];
static void
ide_object_destroy (IdeObject *self)
{
IdeObjectPrivate *priv = ide_object_get_instance_private (self);
g_assert (IDE_IS_OBJECT (self));
if (!priv->is_destroyed)
{
priv->is_destroyed = TRUE;
g_signal_emit (self, gSignals [DESTROY], 0);
}
}
static void
ide_object_release_context (gpointer data,
GObject *where_the_object_was)
{
IdeObject *self = data;
IdeObjectPrivate *priv = ide_object_get_instance_private (self);
g_assert (IDE_IS_OBJECT (self));
priv->context = NULL;
ide_object_destroy (self);
}
/**
* ide_object_get_context:
......@@ -64,31 +102,53 @@ ide_object_get_context (IdeObject *object)
}
static void
ide_object_set_context (IdeObject *object,
ide_object_set_context (IdeObject *self,
IdeContext *context)
{
IdeObjectPrivate *priv = ide_object_get_instance_private (object);
IdeObjectPrivate *priv = ide_object_get_instance_private (self);
g_return_if_fail (IDE_IS_OBJECT (object));
g_return_if_fail (IDE_IS_CONTEXT (context));
g_assert (IDE_IS_OBJECT (self));
g_assert (!context || IDE_IS_CONTEXT (context));
ide_set_weak_pointer (&priv->context, context);
if (context != priv->context)
{
if (priv->context != NULL)
{
g_object_weak_unref (G_OBJECT (priv->context),
ide_object_release_context,
self);
priv->context = NULL;
}
if (context != NULL)
{
priv->context = context;
g_object_weak_ref (G_OBJECT (priv->context),
ide_object_release_context,
self);
}
g_object_notify_by_pspec (G_OBJECT (self), gParamSpecs [PROP_CONTEXT]);
}
}
static void
ide_object_finalize (GObject *object)
ide_object_dispose (GObject *object)
{
IdeObject *self = (IdeObject *)object;
IdeObjectPrivate *priv = ide_object_get_instance_private (self);
if (priv->context)
{
g_object_remove_weak_pointer (G_OBJECT (priv->context),
(gpointer *)&priv->context);
priv->context = NULL;
}
G_OBJECT_CLASS (ide_object_parent_class)->dispose (object);
G_OBJECT_CLASS (ide_object_parent_class)->finalize (object);
IDE_TRACE_MSG ("%s (%p)",
g_type_name (G_TYPE_FROM_INSTANCE (object)),
object);
if (priv->context != NULL)
ide_object_set_context (self, NULL);
if (!priv->is_destroyed)
ide_object_destroy (self);
}
static void
......@@ -134,7 +194,7 @@ ide_object_class_init (IdeObjectClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = ide_object_finalize;
object_class->dispose = ide_object_dispose;
object_class->get_property = ide_object_get_property;
object_class->set_property = ide_object_set_property;
......@@ -148,6 +208,16 @@ ide_object_class_init (IdeObjectClass *klass)
G_PARAM_STATIC_STRINGS));
g_object_class_install_property (object_class, PROP_CONTEXT,
gParamSpecs [PROP_CONTEXT]);
gSignals [DESTROY] =
g_signal_new ("destroy",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (IdeObjectClass, destroy),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE,
0);
}
static void
......
......@@ -32,6 +32,8 @@ G_DECLARE_DERIVABLE_TYPE (IdeObject, ide_object, IDE, OBJECT, GObject)
struct _IdeObjectClass
{
GObjectClass parent;
void (*destroy) (IdeObject *self);
};
IdeContext *ide_object_get_context (IdeObject *object);
......
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