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GtkListBox: Listen for adjustment changes

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We automatically pick up an adjustment from our parent
scrollable, but we failed to update it when it changes.
This is happening in the places sidebar, and it was causing
the focus-tracking to fail there, letting the focus move
out of view. With this change, the focus remains visible.
This commit is contained in:
Matthias Clasen
2015-07-19 22:08:36 -04:00
parent 55652b6b09
commit 52c4955d21
1 changed files with 23 additions and 4 deletions
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27
gtk/gtklistbox.c
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@ -949,8 +949,10 @@ gtk_list_box_set_adjustment (GtkListBox *box,
GtkListBoxPrivate *priv = BOX_PRIV (box);
g_return_if_fail (GTK_IS_LIST_BOX (box));
g_return_if_fail (adjustment == NULL || GTK_IS_ADJUSTMENT (adjustment));
g_object_ref_sink (adjustment);
if (adjustment)
g_object_ref_sink (adjustment);
if (priv->adjustment)
g_object_unref (priv->adjustment);
priv->adjustment = adjustment;
@ -975,20 +977,37 @@ gtk_list_box_get_adjustment (GtkListBox *box)
return BOX_PRIV (box)->adjustment;
}
static void
adjustment_changed (GObject *object,
GParamSpec *pspec,
gpointer data)
{
GtkAdjustment *adjustment;
adjustment = gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (object));
gtk_list_box_set_adjustment (GTK_LIST_BOX (data), adjustment);
}
static void
gtk_list_box_parent_set (GtkWidget *widget,
GtkWidget *prev_parent)
{
GtkWidget *parent;
GtkAdjustment *adjustment;
parent = gtk_widget_get_parent (widget);
if (prev_parent && GTK_IS_SCROLLABLE (prev_parent))
g_signal_handlers_disconnect_by_func (prev_parent,
G_CALLBACK (adjustment_changed), widget);
if (parent && GTK_IS_SCROLLABLE (parent))
{
adjustment = gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (parent));
gtk_list_box_set_adjustment (GTK_LIST_BOX (widget), adjustment);
adjustment_changed (G_OBJECT (parent), NULL, widget);
g_signal_connect (parent, "notify::vadjustment",
G_CALLBACK (adjustment_changed), widget);
}
else
gtk_list_box_set_adjustment (GTK_LIST_BOX (widget), NULL);
}
/**