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expander: Inherit from GtkContainer

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This fixes the expansion not working. As a GtkBin, GtkExpander can only
have one child and if that's a GtkBox (and not the one added through
gtk_expander_add), things go wrong.
This commit is contained in:
Timm Bäder 2017-05-06 12:41:50 +02:00 committed by Matthias Clasen
parent a2f7a076ac
commit 2234d100ad
2 changed files with 51 additions and 18 deletions
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65
gtk/gtkexpander.c
View File

@ -146,9 +146,9 @@ struct _GtkExpanderPrivate
GtkWidget *box;
GtkWidget *title_widget;
GtkWidget *arrow_widget;
GtkWidget *child;
GtkGesture *multipress_gesture;
gint spacing;
guint expand_timer;
@ -227,19 +227,23 @@ static void gesture_multipress_released_cb (GtkGestureMultiPress *gesture,
gdouble y,
GtkExpander *expander);
G_DEFINE_TYPE_WITH_CODE (GtkExpander, gtk_expander, GTK_TYPE_BIN,
G_DEFINE_TYPE_WITH_CODE (GtkExpander, gtk_expander, GTK_TYPE_CONTAINER,
G_ADD_PRIVATE (GtkExpander)
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_expander_buildable_init))
static void
gtk_expander_finalize (GObject *obj)
gtk_expander_forall (GtkContainer *container,
GtkCallback callback,
gpointer user_data)
{
GtkExpanderPrivate *priv = gtk_expander_get_instance_private (GTK_EXPANDER (obj));
GtkExpanderPrivate *priv = gtk_expander_get_instance_private (GTK_EXPANDER (container));
gtk_widget_unparent (priv->box);
if (priv->child)
(*callback) (priv->child, user_data);
G_OBJECT_CLASS (gtk_expander_parent_class)->finalize (obj);
if (priv->label_widget)
(*callback) (priv->label_widget, user_data);
}
static void
@ -253,7 +257,6 @@ gtk_expander_class_init (GtkExpanderClass *klass)
widget_class = (GtkWidgetClass *) klass;
container_class = (GtkContainerClass *) klass;
gobject_class->finalize = gtk_expander_finalize;
gobject_class->set_property = gtk_expander_set_property;
gobject_class->get_property = gtk_expander_get_property;
@ -269,6 +272,7 @@ gtk_expander_class_init (GtkExpanderClass *klass)
container_class->add = gtk_expander_add;
container_class->remove = gtk_expander_remove;
container_class->forall = gtk_expander_forall;
klass->activate = gtk_expander_activate;
@ -360,7 +364,7 @@ gtk_expander_init (GtkExpander *expander)
gtk_widget_set_has_window (GTK_WIDGET (expander), FALSE);
priv->label_widget = NULL;
priv->spacing = 0;
priv->child = NULL;
priv->expanded = FALSE;
priv->use_underline = FALSE;
@ -507,6 +511,15 @@ gtk_expander_destroy (GtkWidget *widget)
priv->expand_timer = 0;
}
if (priv->box)
{
gtk_widget_unparent (priv->box);
priv->box = NULL;
priv->child = NULL;
priv->label_widget = NULL;
priv->arrow_widget = NULL;
}
g_clear_object (&priv->multipress_gesture);
GTK_WIDGET_CLASS (gtk_expander_parent_class)->destroy (widget);
@ -718,7 +731,7 @@ focus_in_site (GtkExpander *expander,
return FALSE;
case FOCUS_CHILD:
{
GtkWidget *child = gtk_bin_get_child (GTK_BIN (expander));
GtkWidget *child = expander->priv->child;
if (child && gtk_widget_get_child_visible (child))
return gtk_widget_child_focus (child, direction);
@ -810,7 +823,7 @@ static void
gtk_expander_resize_toplevel (GtkExpander *expander)
{
GtkExpanderPrivate *priv = expander->priv;
GtkWidget *child = gtk_bin_get_child (GTK_BIN (expander));
GtkWidget *child = priv->child;
if (child && priv->resize_toplevel &&
gtk_widget_get_realized (GTK_WIDGET (expander)))
@ -888,7 +901,18 @@ gtk_expander_add (GtkContainer *container,
GtkExpanderPrivate *priv = gtk_expander_get_instance_private (expander);
if (priv->expanded)
gtk_container_add (GTK_CONTAINER (priv->box), widget);
{
gtk_container_add (GTK_CONTAINER (priv->box), widget);
}
else
{
if (g_object_is_floating (widget))
g_object_ref_sink (widget);
g_object_ref (widget);
}
priv->child = widget;
}
static void
@ -903,6 +927,11 @@ gtk_expander_remove (GtkContainer *container,
else
{
gtk_container_remove (GTK_CONTAINER (priv->box), widget);
if (!priv->expanded)
{
/* We hold an extra ref */
g_object_unref (widget);
}
GTK_CONTAINER_CLASS (gtk_expander_parent_class)->remove (container, widget);
}
}
@ -1004,16 +1033,20 @@ gtk_expander_set_expanded (GtkExpander *expander,
update_node_state (expander);
child = gtk_bin_get_child (GTK_BIN (expander));
child = priv->child;
if (child)
{
if (priv->expanded)
gtk_container_add (GTK_CONTAINER (priv->box), child);
{
gtk_container_add (GTK_CONTAINER (priv->box), child);
g_object_unref (priv->child);
}
else
gtk_container_remove (GTK_CONTAINER (priv->box), child);
/* TODO: Yeah, I don't think this will work... */
{
g_object_ref (priv->child);
gtk_container_remove (GTK_CONTAINER (priv->box), child);
}
gtk_expander_resize_toplevel (expander);
}

4
gtk/gtkexpander.h
View File

@ -43,7 +43,7 @@ typedef struct _GtkExpanderPrivate GtkExpanderPrivate;
struct _GtkExpander
{
GtkBin bin;
GtkContainer parent_instance;
GtkExpanderPrivate *priv;
};
@ -55,7 +55,7 @@ struct _GtkExpander
*/
struct _GtkExpanderClass
{
GtkBinClass parent_class;
GtkContainerClass parent_class;
/*< public >*/