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scrollbar: Update accessible state

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We have the scrollbar role, and are therefore expected
to set value-min/max/now properties.
This commit is contained in:
Matthias Clasen 2020-07-27 20:27:27 -04:00
parent d2c5e3f2b3
commit a63d03810f
1 changed files with 63 additions and 0 deletions
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63
gtk/gtkscrollbar.c
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@ -166,6 +166,9 @@ gtk_scrollbar_set_property (GObject *object,
gtk_widget_update_orientation (GTK_WIDGET (self), priv->orientation);
gtk_widget_queue_resize (GTK_WIDGET (self));
g_object_notify_by_pspec (object, pspec);
gtk_accessible_update_property (GTK_ACCESSIBLE (self),
GTK_ACCESSIBLE_PROPERTY_ORIENTATION, orientation,
-1);
}
}
break;
@ -175,11 +178,24 @@ gtk_scrollbar_set_property (GObject *object,
}
}
static void gtk_scrollbar_adjustment_changed (GtkAdjustment *adjustment,
gpointer data);
static void gtk_scrollbar_adjustment_value_changed (GtkAdjustment *adjustment,
gpointer data);
static void
gtk_scrollbar_dispose (GObject *object)
{
GtkScrollbar *self = GTK_SCROLLBAR (object);
GtkScrollbarPrivate *priv = gtk_scrollbar_get_instance_private (self);
GtkAdjustment *adj;
adj = gtk_range_get_adjustment (GTK_RANGE (priv->range));
if (adj)
{
g_signal_handlers_disconnect_by_func (adj, gtk_scrollbar_adjustment_changed, self);
g_signal_handlers_disconnect_by_func (adj, gtk_scrollbar_adjustment_value_changed, self);
}
g_clear_pointer (&priv->range, gtk_widget_unparent);
@ -224,6 +240,9 @@ gtk_scrollbar_init (GtkScrollbar *self)
gtk_widget_set_vexpand (priv->range, TRUE);
gtk_widget_set_parent (priv->range, GTK_WIDGET (self));
gtk_widget_update_orientation (GTK_WIDGET (self), priv->orientation);
gtk_accessible_update_property (GTK_ACCESSIBLE (self),
GTK_ACCESSIBLE_PROPERTY_ORIENTATION, priv->orientation,
-1);
}
/**
@ -248,6 +267,29 @@ gtk_scrollbar_new (GtkOrientation orientation,
NULL);
}
static void
gtk_scrollbar_adjustment_changed (GtkAdjustment *adjustment,
gpointer data)
{
GtkScrollbar *self = data;
gtk_accessible_update_property (GTK_ACCESSIBLE (self),
GTK_ACCESSIBLE_PROPERTY_VALUE_MAX, gtk_adjustment_get_upper (adjustment),
GTK_ACCESSIBLE_PROPERTY_VALUE_MIN, gtk_adjustment_get_lower (adjustment),
-1);
}
static void
gtk_scrollbar_adjustment_value_changed (GtkAdjustment *adjustment,
gpointer data)
{
GtkScrollbar *self = data;
gtk_accessible_update_property (GTK_ACCESSIBLE (self),
GTK_ACCESSIBLE_PROPERTY_VALUE_NOW, gtk_adjustment_get_value (adjustment),
-1);
}
/**
* gtk_scrollbar_set_adjustment:
* @self: a #GtkScrollbar
@ -260,13 +302,34 @@ gtk_scrollbar_set_adjustment (GtkScrollbar *self,
GtkAdjustment *adjustment)
{
GtkScrollbarPrivate *priv = gtk_scrollbar_get_instance_private (self);
GtkAdjustment *adj;
g_return_if_fail (GTK_IS_SCROLLBAR (self));
g_return_if_fail (adjustment == NULL || GTK_IS_ADJUSTMENT (adjustment));
adj = gtk_range_get_adjustment (GTK_RANGE (priv->range));
if (adj)
{
g_signal_handlers_disconnect_by_func (adj, gtk_scrollbar_adjustment_changed, self);
g_signal_handlers_disconnect_by_func (adj, gtk_scrollbar_adjustment_value_changed, self);
}
gtk_range_set_adjustment (GTK_RANGE (priv->range), adjustment);
if (adjustment)
{
g_signal_connect (adjustment, "changed",
G_CALLBACK (gtk_scrollbar_adjustment_changed), self);
g_signal_connect (adjustment, "value-changed",
G_CALLBACK (gtk_scrollbar_adjustment_value_changed), self);
gtk_accessible_update_property (GTK_ACCESSIBLE (self),
GTK_ACCESSIBLE_PROPERTY_VALUE_MAX, gtk_adjustment_get_upper (adjustment),
GTK_ACCESSIBLE_PROPERTY_VALUE_MIN, gtk_adjustment_get_lower (adjustment),
GTK_ACCESSIBLE_PROPERTY_VALUE_NOW, gtk_adjustment_get_value (adjustment),
-1);
}
g_object_notify_by_pspec (G_OBJECT (self), props[PROP_ADJUSTMENT]);
}